Merge branch 'master' into release

.travis.yml

@@ -14,7 +14,7 @@ env:
 
 script:
 - make
-- make test GOFLAGS="-race"
+- make test GOFLAGS="-timeout 20m -race -v"
 - make coverage
 
 after_success:

Makefile

@@ -107,6 +107,7 @@ spelling:
 
 test: build
 	@echo "Running all minio testing:"
+	@go test $(GOFLAGS) .
 	@go test $(GOFLAGS) github.com/minio/minio/cmd...
 	@go test $(GOFLAGS) github.com/minio/minio/pkg...
 

README.md

@@ -43,6 +43,8 @@ chmod 755 minio
 |GNU/Linux|64-bit Intel|https://dl.minio.io/server/minio/release/linux-amd64/minio|
 ||32-bit Intel|https://dl.minio.io/server/minio/release/linux-386/minio|
 ||32-bit ARM|https://dl.minio.io/server/minio/release/linux-arm/minio|
+||64-bit ARM|https://dl.minio.io/server/minio/release/linux-arm64/minio|
+||32-bit ARMv6|https://dl.minio.io/server/minio/release/linux-arm6vl/minio|
 ```sh
 chmod +x minio
 ./minio server ~/Photos

README_ZH.md

@@ -11,6 +11,8 @@ Minio是一个非常轻量的服务,可以很简单的和其他应用的结合
 |GNU/Linux|64-bit Intel|https://dl.minio.io/server/minio/release/linux-amd64/minio|
 ||32-bit Intel|https://dl.minio.io/server/minio/release/linux-386/minio|
 ||32-bit ARM|https://dl.minio.io/server/minio/release/linux-arm/minio|
+||64-bit ARM|https://dl.minio.io/server/minio/release/linux-arm64/minio|
+||32-bit ARMv6|https://dl.minio.io/server/minio/release/linux-arm6vl/minio|
 |Apple OS X|64-bit Intel|https://dl.minio.io/server/minio/release/darwin-amd64/minio|
 |Microsoft Windows|64-bit|https://dl.minio.io/server/minio/release/windows-amd64/minio.exe|
 ||32-bit|https://dl.minio.io/server/minio/release/windows-386/minio.exe|

appveyor.yml

@@ -35,9 +35,9 @@ test_script:
   # Unit tests
   - ps: Add-AppveyorTest "Unit Tests" -Outcome Running
   - mkdir build\coverage
-  - go test -timeout 15m -v -race github.com/minio/minio/cmd...
+  - go test -timeout 20m -v -race github.com/minio/minio/cmd...
   - go test -v -race github.com/minio/minio/pkg...
-  - go test -coverprofile=build\coverage\coverage.txt -covermode=atomic github.com/minio/minio/cmd
+  - go test -timeout 15m -coverprofile=build\coverage\coverage.txt -covermode=atomic github.com/minio/minio/cmd
   - ps: Update-AppveyorTest "Unit Tests" -Outcome Passed
 
 after_test:

browser/README.md

@@ -4,34 +4,69 @@
 
 ## Installation
 
-### Install yarn:
+### Install yarn
 ```sh
-$ curl -o- -L https://yarnpkg.com/install.sh | bash
-$ yarn
+curl -o- -L https://yarnpkg.com/install.sh | bash
+yarn
 ```
 
-### Install `go-bindata` and `go-bindata-assetfs`.
+### Install `go-bindata` and `go-bindata-assetfs`
 
 If you do not have a working Golang environment, please follow [Install Golang](https://docs.minio.io/docs/how-to-install-golang)
 
 ```sh
-$ go get github.com/jteeuwen/go-bindata/...
-$ go get github.com/elazarl/go-bindata-assetfs/...
+go get github.com/jteeuwen/go-bindata/...
+go get github.com/elazarl/go-bindata-assetfs/...
 ```
 
-## Generating Assets.
+## Generating Assets
 
 ### Generate ui-assets.go
 
 ```sh
-$ yarn release
+yarn release
 ```
-This generates ui-assets.go in the current direcotry. Now do `make` in the parent directory to build the minio binary with the newly generated ui-assets.go
 
-### Run Minio Browser with live reload.
+This generates ui-assets.go in the current direcotry. Now do `make` in the parent directory to build the minio binary with the newly generated ``ui-assets.go``
+
+### Run Minio Browser with live reload
 
 ```sh
-$ yarn dev
+yarn dev
 ```
 
 Open [http://localhost:8080/minio/](http://localhost:8080/minio/) in your browser to play with the application
+
+### Run Minio Browser with live reload on custom port
+
+Edit `browser/webpack.config.js`
+
+```diff
+diff --git a/browser/webpack.config.js b/browser/webpack.config.js
+index 3ccdaba..9496c56 100644
+--- a/browser/webpack.config.js
++++ b/browser/webpack.config.js
+@@ -58,6 +58,7 @@ var exports = {
+     historyApiFallback: {
+       index: '/minio/'
+     },
++    port: 8888,
+     proxy: {
+       '/minio/webrpc': {
+        target: 'http://localhost:9000',
+@@ -97,7 +98,7 @@ var exports = {
+ if (process.env.NODE_ENV === 'dev') {
+   exports.entry = [
+     'webpack/hot/dev-server',
+-    'webpack-dev-server/client?http://localhost:8080',
++    'webpack-dev-server/client?http://localhost:8888',
+     path.resolve(__dirname, 'app/index.js')
+   ]
+ }
+```
+
+```sh
+yarn dev
+```
+
+Open [http://localhost:8888/minio/](http://localhost:8888/minio/) in your browser to play with the application

browser/app/js/actions.js

@@ -56,6 +56,7 @@ export const SET_POLICIES = 'SET_POLICIES'
 export const SET_SHARE_OBJECT = 'SET_SHARE_OBJECT'
 export const DELETE_CONFIRMATION = 'DELETE_CONFIRMATION'
 export const SET_PREFIX_WRITABLE = 'SET_PREFIX_WRITABLE'
+export const REMOVE_OBJECT = 'REMOVE_OBJECT'
 
 export const showDeleteConfirmation = (object) => {
   return {
@@ -206,6 +207,13 @@ export const showAlert = alert => {
   }
 }
 
+export const removeObject = object => {
+  return {
+    type: REMOVE_OBJECT,
+    object
+  }
+}
+
 export const setSidebarStatus = (status) => {
   return {
     type: SET_SIDEBAR_STATUS,
@@ -227,10 +235,12 @@ export const setVisibleBuckets = visibleBuckets => {
   }
 }
 
-export const setObjects = (objects) => {
+export const setObjects = (objects, marker, istruncated) => {
   return {
     type: SET_OBJECTS,
-    objects
+    objects,
+    marker,
+    istruncated
   }
 }
 
@@ -284,22 +294,63 @@ export const selectBucket = (newCurrentBucket, prefix) => {
   }
 }
 
+export const listObjects = () => {
+  return (dispatch, getState) => {
+    const {currentBucket, currentPath, marker, objects, istruncated, web} = getState()
+    if (!istruncated) return
+    web.ListObjects({
+      bucketName: currentBucket,
+      prefix: currentPath,
+      marker: marker
+    })
+      .then(res => {
+	let objects = res.objects
+        if (!objects)
+          objects = []
+        objects = objects.map(object => {
+	  object.name = object.name.replace(`${currentPath}`, '');
+	  return object
+	})
+        dispatch(setObjects(objects, res.nextmarker, res.istruncated))
+        dispatch(setPrefixWritable(res.writable))
+        dispatch(setLoadBucket(''))
+        dispatch(setLoadPath(''))
+      })
+      .catch(err => {
+        dispatch(showAlert({
+          type: 'danger',
+          message: err.message
+        }))
+        dispatch(setLoadBucket(''))
+        dispatch(setLoadPath(''))
+        // Use browserHistory.replace instead of push so that browser back button works fine.
+        browserHistory.replace(`${minioBrowserPrefix}/login`)
+      })
+  }
+}
+
 export const selectPrefix = prefix => {
   return (dispatch, getState) => {
     const {currentBucket, web} = getState()
+    dispatch(setObjects([], "", false))
     dispatch(setLoadPath(prefix))
     web.ListObjects({
       bucketName: currentBucket,
-      prefix
+      prefix,
+      marker: ""
     })
       .then(res => {
         let objects = res.objects
         if (!objects)
           objects = []
+        objects = objects.map(object => {
+	  object.name = object.name.replace(`${prefix}`, '');
+	  return object
+	})
         dispatch(setObjects(
-          utils.sortObjectsByName(objects.map(object => {
-            object.name = object.name.replace(`${prefix}`, ''); return object
-          }))
+          objects,
+          res.nextmarker,
+          res.istruncated
         ))
         dispatch(setPrefixWritable(res.writable))
         dispatch(setSortNameOrder(false))
@@ -314,8 +365,8 @@ export const selectPrefix = prefix => {
         }))
         dispatch(setLoadBucket(''))
         dispatch(setLoadPath(''))
-	// Use browserHistory.replace instead of push so that browser back button works fine.
-	browserHistory.replace(`${minioBrowserPrefix}/login`)
+        // Use browserHistory.replace instead of push so that browser back button works fine.
+        browserHistory.replace(`${minioBrowserPrefix}/login`)
       })
   }
 }

browser/app/js/components/Browse.js

@@ -47,6 +47,7 @@ import * as mime from '../mime'
 import { minioBrowserPrefix } from '../constants'
 import CopyToClipboard from 'react-copy-to-clipboard'
 import storage from 'local-storage-fallback'
+import InfiniteScroll from 'react-infinite-scroller';
 
 export default class Browse extends React.Component {
   componentDidMount() {
@@ -110,9 +111,6 @@ export default class Browse extends React.Component {
       if (!decPathname.endsWith('/'))
         decPathname += '/'
       if (decPathname === minioBrowserPrefix + '/') {
-        dispatch(actions.setCurrentBucket(''))
-        dispatch(actions.setCurrentPath(''))
-        dispatch(actions.setObjects([]))
         return
       }
       let obj = utils.pathSlice(decPathname)
@@ -140,6 +138,11 @@ export default class Browse extends React.Component {
     this.props.dispatch(actions.setVisibleBuckets(buckets.filter(bucket => bucket.indexOf(e.target.value) > -1)))
   }
 
+  listObjects() {
+    const {dispatch} = this.props
+    dispatch(actions.listObjects())
+  }
+
   selectPrefix(e, prefix) {
     e.preventDefault()
     const {dispatch, currentPath, web, currentBucket} = this.props
@@ -231,7 +234,7 @@ export default class Browse extends React.Component {
     })
       .then(() => {
         this.hideDeleteConfirmation()
-        dispatch(actions.selectPrefix(currentPath))
+        dispatch(actions.removeObject(deleteConfirmation.object))
       })
       .catch(e => dispatch(actions.showAlert({
         type: 'danger',
@@ -296,11 +299,6 @@ export default class Browse extends React.Component {
     browserHistory.push(`${minioBrowserPrefix}/login`)
   }
 
-  landingPage(e) {
-    e.preventDefault()
-    this.props.dispatch(actions.selectBucket(this.props.buckets[0]))
-  }
-
   fullScreen(e) {
     e.preventDefault()
     let el = document.documentElement
@@ -365,7 +363,6 @@ export default class Browse extends React.Component {
     }
   }
 
-
   render() {
     const {total, free} = this.props.storageInfo
     const {showMakeBucketModal, alert, sortNameOrder, sortSizeOrder, sortDateOrder, showAbout, showBucketPolicy} = this.props
@@ -375,7 +372,7 @@ export default class Browse extends React.Component {
     const {policies, currentBucket, currentPath} = this.props
     const {deleteConfirmation} = this.props
     const {shareObject} = this.props
-    const {web, prefixWritable} = this.props
+    const {web, prefixWritable, istruncated} = this.props
 
     // Don't always show the SettingsModal. This is done here instead of in
     // SettingsModal.js so as to allow for #componentWillMount to handle
@@ -414,10 +411,10 @@ export default class Browse extends React.Component {
     let freePercent = free * 100 / total
 
     if (web.LoggedIn()) {
-      browserDropdownButton = <BrowserDropdown fullScreen={ this.fullScreen.bind(this) }
-                                showAbout={ this.showAbout.bind(this) }
-                                showSettings={ this.showSettings.bind(this) }
-                                logout={ this.logout.bind(this) } />
+      browserDropdownButton = <BrowserDropdown fullScreenFunc={ this.fullScreen.bind(this) }
+                                aboutFunc={ this.showAbout.bind(this) }
+                                settingsFunc={ this.showSettings.bind(this) }
+                                logoutFunc={ this.logout.bind(this) } />
     } else {
       loginButton = <a className='btn btn-danger' href='/minio/login'>Login</a>
     }
@@ -481,7 +478,6 @@ export default class Browse extends React.Component {
                            </OverlayTrigger>
                          </Dropdown.Menu>
                        </Dropdown>
-
     }
 
     return (
@@ -489,8 +485,7 @@ export default class Browse extends React.Component {
                    'file-explorer': true,
                    'toggled': sidebarStatus
                  }) }>
-        <SideBar landingPage={ this.landingPage.bind(this) }
-          searchBuckets={ this.searchBuckets.bind(this) }
+        <SideBar searchBuckets={ this.searchBuckets.bind(this) }
           selectBucket={ this.selectBucket.bind(this) }
           clickOutside={ this.hideSidebar.bind(this) }
           showPolicy={ this.showBucketPolicy.bind(this) } />
@@ -551,10 +546,18 @@ export default class Browse extends React.Component {
               </header>
             </div>
             <div className="feb-container">
-              <ObjectsList dataType={ this.dataType.bind(this) }
-                selectPrefix={ this.selectPrefix.bind(this) }
-                showDeleteConfirmation={ this.showDeleteConfirmation.bind(this) }
-                shareObject={ this.shareObject.bind(this) } />
+              <InfiniteScroll loadMore={ this.listObjects.bind(this) }
+                hasMore={ istruncated }
+                useWindow={ true }
+                initialLoad={ false }>
+                <ObjectsList dataType={ this.dataType.bind(this) }
+                  selectPrefix={ this.selectPrefix.bind(this) }
+                  showDeleteConfirmation={ this.showDeleteConfirmation.bind(this) }
+                  shareObject={ this.shareObject.bind(this) } />
+              </InfiniteScroll>
+              <div className="text-center" style={ { display: istruncated ? 'block' : 'none' } }>
+                <span>Loading...</span>
+              </div>
             </div>
             <UploadModal />
             { createButton }

browser/app/js/components/BrowserDropdown.js

@@ -18,7 +18,7 @@ import React from 'react'
 import connect from 'react-redux/lib/components/connect'
 import Dropdown from 'react-bootstrap/lib/Dropdown'
 
-let BrowserDropdown = ({fullScreen, showAbout, showSettings, logout}) => {
+let BrowserDropdown = ({fullScreenFunc, aboutFunc, settingsFunc, logoutFunc}) => {
   return (
     <li>
       <Dropdown pullRight id="top-right-menu">
@@ -30,7 +30,7 @@ let BrowserDropdown = ({fullScreen, showAbout, showSettings, logout}) => {
             <a target="_blank" href="https://github.com/minio/miniobrowser">Github <i className="fa fa-github"></i></a>
           </li>
           <li>
-            <a href="" onClick={ fullScreen }>Fullscreen <i className="fa fa-expand"></i></a>
+            <a href="" onClick={ fullScreenFunc }>Fullscreen <i className="fa fa-expand"></i></a>
           </li>
           <li>
             <a target="_blank" href="https://docs.minio.io/">Documentation <i className="fa fa-book"></i></a>
@@ -39,13 +39,13 @@ let BrowserDropdown = ({fullScreen, showAbout, showSettings, logout}) => {
             <a target="_blank" href="https://slack.minio.io">Ask for help <i className="fa fa-question-circle"></i></a>
           </li>
           <li>
-            <a href="" onClick={ showAbout }>About <i className="fa fa-info-circle"></i></a>
+            <a href="" onClick={ aboutFunc }>About <i className="fa fa-info-circle"></i></a>
           </li>
           <li>
-            <a href="" onClick={ showSettings }>Settings <i className="fa fa-cog"></i></a>
+            <a href="" onClick={ settingsFunc }>Settings <i className="fa fa-cog"></i></a>
           </li>
           <li>
-            <a href="" onClick={ logout }>Sign Out <i className="fa fa-sign-out"></i></a>
+            <a href="" onClick={ logoutFunc }>Sign Out <i className="fa fa-sign-out"></i></a>
           </li>
         </Dropdown.Menu>
       </Dropdown>

browser/app/js/components/Path.js

@@ -29,7 +29,7 @@ let Path = ({currentBucket, currentPath, selectPrefix}) => {
   }
 
   return (
-      <h2><span className="main"><a onClick={ (e) => selectPrefix(e, '') } href="">{ currentBucket }</a></span>{ path }</h2>
+    <h2><span className="main"><a onClick={ (e) => selectPrefix(e, '') } href="">{ currentBucket }</a></span>{ path }</h2>
   )
 }
 

browser/app/js/components/SideBar.js

@@ -22,7 +22,7 @@ import connect from 'react-redux/lib/components/connect'
 
 import logo from '../../img/logo.svg'
 
-let SideBar = ({visibleBuckets, loadBucket, currentBucket, selectBucket, searchBuckets, landingPage, sidebarStatus, clickOutside, showPolicy}) => {
+let SideBar = ({visibleBuckets, loadBucket, currentBucket, selectBucket, searchBuckets, sidebarStatus, clickOutside, showPolicy}) => {
 
   const list = visibleBuckets.map((bucket, i) => {
     return <li className={ classNames({
@@ -44,8 +44,8 @@ let SideBar = ({visibleBuckets, loadBucket, currentBucket, selectBucket, searchB
                          'toggled': sidebarStatus
                        }) }>
         <div className="fes-header clearfix hidden-sm hidden-xs">
-          <a href="" onClick={ landingPage }><img src={ logo } alt="" />
-            <h2>Minio Browser</h2></a>
+          <img src={ logo } alt="" />
+          <h2>Minio Browser</h2>
         </div>
         <div className="fes-list">
           <div className="input-group ig-dark ig-left ig-search" style={ { display: web.LoggedIn() ? 'block' : 'none' } }>

browser/app/js/reducers.js

@@ -21,6 +21,7 @@ export default (state = {
     buckets: [],
     visibleBuckets: [],
     objects: [],
+    istruncated: true,
     storageInfo: {},
     serverInfo: {},
     currentBucket: '',
@@ -76,7 +77,15 @@ export default (state = {
       newState.currentBucket = action.currentBucket
       break
     case actions.SET_OBJECTS:
-      newState.objects = action.objects
+      if (!action.objects.length) {
+        newState.objects = []
+        newState.marker = ""
+        newState.istruncated = action.istruncated
+      } else {
+        newState.objects = [...newState.objects, ...action.objects]
+        newState.marker = action.marker
+        newState.istruncated = action.istruncated
+      }
       break
     case actions.SET_CURRENT_PATH:
       newState.currentPath = action.currentPath
@@ -171,6 +180,11 @@ export default (state = {
     case actions.SET_PREFIX_WRITABLE:
       newState.prefixWritable = action.prefixWritable
       break
+    case actions.REMOVE_OBJECT:
+      let idx = newState.objects.findIndex(object => object.name === action.object)
+      if (idx == -1) break
+      newState.objects = [...newState.objects.slice(0, idx), ...newState.objects.slice(idx + 1)]
+      break
   }
   return newState
 }

browser/package.json

@@ -32,6 +32,7 @@
     "copy-webpack-plugin": "^0.3.3",
     "css-loader": "^0.23.1",
     "esformatter": "^0.10.0",
+    "esformatter-jsx": "^7.4.1",
     "esformatter-jsx-ignore": "^1.0.6",
     "expect": "^1.20.2",
     "history": "^1.17.0",
@@ -77,6 +78,7 @@
     "react-custom-scrollbars": "^2.2.2",
     "react-dom": "^0.14.6",
     "react-dropzone": "^3.5.3",
+    "react-infinite-scroller": "^1.0.6",
     "react-onclickout": "2.0.4"
   }
 }

browser/yarn.lock

@@ -694,6 +694,10 @@ babylon@^6.11.0, babylon@^6.15.0, babylon@^6.8.0:
   version "6.15.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.15.0.tgz#ba65cfa1a80e1759b0e89fb562e27dccae70348e"
 
+babylon@6.14.1:
+  version "6.14.1"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.14.1.tgz#956275fab72753ad9b3435d7afe58f8bf0a29815"
+
 backo2@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
@@ -756,7 +760,7 @@ bluebird@^2.10.2, bluebird@^2.9.27:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-2.11.0.tgz#534b9033c022c9579c56ba3b3e5a5caafbb650e1"
 
-bluebird@^3.4.7:
+bluebird@^3.0.5, bluebird@^3.4.7:
   version "3.4.7"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
 
@@ -1086,6 +1090,13 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
+config-chain@~1.1.5:
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/config-chain/-/config-chain-1.1.11.tgz#aba09747dfbe4c3e70e766a6e41586e1859fc6f2"
+  dependencies:
+    ini "^1.3.4"
+    proto-list "~1.2.1"
+
 connect-history-api-fallback@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/connect-history-api-fallback/-/connect-history-api-fallback-1.3.0.tgz#e51d17f8f0ef0db90a64fdb47de3051556e9f169"
@@ -1462,6 +1473,15 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
+editorconfig@^0.13.2:
+  version "0.13.2"
+  resolved "https://registry.yarnpkg.com/editorconfig/-/editorconfig-0.13.2.tgz#8e57926d9ee69ab6cb999f027c2171467acceb35"
+  dependencies:
+    bluebird "^3.0.5"
+    commander "^2.9.0"
+    lru-cache "^3.2.0"
+    sigmund "^1.0.1"
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
@@ -1571,6 +1591,10 @@ escape-string-regexp@^1.0.2, escape-string-regexp@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.2.tgz#4dbc2fe674e71949caf3fb2695ce7f2dc1d9a8d1"
 
+esformatter-ignore@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/esformatter-ignore/-/esformatter-ignore-0.1.3.tgz#04d3b875bfa49dde004cc58df6f6bbc3c0567f1e"
+
 esformatter-jsx-ignore@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/esformatter-jsx-ignore/-/esformatter-jsx-ignore-1.0.6.tgz#e594f6b77db6f85d8c1179ae6dc465756d422489"
@@ -1578,6 +1602,15 @@ esformatter-jsx-ignore@^1.0.6:
     esprima-fb "^12001.1.0-dev-harmony-fb"
     fresh-falafel "^0.2.6"
 
+esformatter-jsx@^7.4.1:
+  version "7.4.1"
+  resolved "https://registry.yarnpkg.com/esformatter-jsx/-/esformatter-jsx-7.4.1.tgz#b2209ae0908f413a747b1205727cbf4ba4249602"
+  dependencies:
+    babylon "6.14.1"
+    esformatter-ignore "^0.1.3"
+    extend "3.0.0"
+    js-beautify "1.6.4"
+
 esformatter-parser@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/esformatter-parser/-/esformatter-parser-1.0.0.tgz#0854072d0487539ed39cae38d8a5432c17ec11d3"
@@ -2200,7 +2233,7 @@ inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
 
-ini@~1.3.0:
+ini@^1.3.4, ini@~1.3.0:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.4.tgz#0537cb79daf59b59a1a517dff706c86ec039162e"
 
@@ -2428,6 +2461,15 @@ js-base64@^2.1.9:
   version "2.1.9"
   resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-2.1.9.tgz#f0e80ae039a4bd654b5f281fc93f04a914a7fcce"
 
+js-beautify@1.6.4:
+  version "1.6.4"
+  resolved "https://registry.yarnpkg.com/js-beautify/-/js-beautify-1.6.4.tgz#a9af79699742ac9a1b6fddc1fdbc78bc4d515fc3"
+  dependencies:
+    config-chain "~1.1.5"
+    editorconfig "^0.13.2"
+    mkdirp "~0.5.0"
+    nopt "~3.0.1"
+
 js-tokens@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.0.tgz#a2f2a969caae142fb3cd56228358c89366957bd1"
@@ -2684,6 +2726,12 @@ lower-case@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.3.tgz#c92393d976793eee5ba4edb583cf8eae35bd9bfb"
 
+lru-cache@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-3.2.0.tgz#71789b3b7f5399bec8565dda38aa30d2a097efee"
+  dependencies:
+    pseudomap "^1.0.1"
+
 lru-cache@2:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.7.3.tgz#6d4524e8b955f95d4f5b58851ce21dd72fb4e952"
@@ -2902,7 +2950,7 @@ node-pre-gyp@^0.6.29:
     tar "~2.2.1"
     tar-pack "~3.3.0"
 
-nopt@~3.0.6:
+nopt@~3.0.1, nopt@~3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
   dependencies:
@@ -3447,6 +3495,10 @@ promise@^7.0.3, promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
+proto-list@~1.2.1:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/proto-list/-/proto-list-1.2.4.tgz#212d5bfe1318306a420f6402b8e26ff39647a849"
+
 protochain@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/protochain/-/protochain-1.0.5.tgz#991c407e99de264aadf8f81504b5e7faf7bfa260"
@@ -3462,6 +3514,10 @@ prr@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"
 
+pseudomap@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
+
 punycode@^1.2.4, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
@@ -3609,6 +3665,10 @@ react-dropzone@^3.5.3:
   dependencies:
     attr-accept "^1.0.3"
 
+react-infinite-scroller@^1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/react-infinite-scroller/-/react-infinite-scroller-1.0.6.tgz#bb406d70032d09fa9e4a3e2175d3adbf4a3f559d"
+
 react-onclickout@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/react-onclickout/-/react-onclickout-2.0.4.tgz#2c7539a647e1dcdcab0b28e2f4eae3c3e00f0c64"
@@ -4039,7 +4099,7 @@ shelljs@^0.7.0:
     interpret "^1.0.0"
     rechoir "^0.6.2"
 
-sigmund@~1.0.0:
+sigmund@^1.0.1, sigmund@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"
 

buildscripts/checkdeps.sh

@@ -97,7 +97,7 @@ assert_is_supported_arch() {
 
 assert_is_supported_os() {
     case "${KNAME}" in
-        Linux | FreeBSD )
+        Linux | FreeBSD | OpenBSD | NetBSD | DragonFly )
             return
             ;;
         Darwin )
@@ -113,7 +113,7 @@ assert_is_supported_os() {
         *)
             echo "ERROR"
             echo "OS '${KNAME}' is not supported."
-            echo "Supported OS: [Linux, FreeBSD, Darwin]"
+            echo "Supported OS: [Linux, FreeBSD, OpenBSD, NetBSD, Darwin, DragonFly]"
             exit 1
     esac
 }

cmd/admin-handlers.go

@@ -19,7 +19,6 @@ package cmd
 import (
 	"encoding/json"
 	"encoding/xml"
-	"fmt"
 	"io/ioutil"
 	"net/http"
 	"net/url"
@@ -36,14 +35,14 @@ type mgmtQueryKey string
 
 // Only valid query params for list/clear locks management APIs.
 const (
-	mgmtBucket    mgmtQueryKey = "bucket"
-	mgmtObject    mgmtQueryKey = "object"
-	mgmtPrefix    mgmtQueryKey = "prefix"
-	mgmtOlderThan mgmtQueryKey = "older-than"
-	mgmtDelimiter mgmtQueryKey = "delimiter"
-	mgmtMarker    mgmtQueryKey = "marker"
-	mgmtMaxKey    mgmtQueryKey = "max-key"
-	mgmtDryRun    mgmtQueryKey = "dry-run"
+	mgmtBucket       mgmtQueryKey = "bucket"
+	mgmtObject       mgmtQueryKey = "object"
+	mgmtPrefix       mgmtQueryKey = "prefix"
+	mgmtLockDuration mgmtQueryKey = "duration"
+	mgmtDelimiter    mgmtQueryKey = "delimiter"
+	mgmtMarker       mgmtQueryKey = "marker"
+	mgmtMaxKey       mgmtQueryKey = "max-key"
+	mgmtDryRun       mgmtQueryKey = "dry-run"
 )
 
 // ServerVersion - server version
@@ -54,8 +53,8 @@ type ServerVersion struct {
 
 // ServerStatus - contains the response of service status API
 type ServerStatus struct {
-	StorageInfo   StorageInfo   `json:"storageInfo"`
 	ServerVersion ServerVersion `json:"serverVersion"`
+	Uptime        time.Duration `json:"uptime"`
 }
 
 // ServiceStatusHandler - GET /?service
@@ -70,15 +69,22 @@ func (adminAPI adminAPIHandlers) ServiceStatusHandler(w http.ResponseWriter, r *
 		return
 	}
 
-	// Fetch storage backend information
-	storageInfo := newObjectLayerFn().StorageInfo()
 	// Fetch server version
 	serverVersion := ServerVersion{Version: Version, CommitID: CommitID}
 
+	// Fetch uptimes from all peers. This may fail to due to lack
+	// of read-quorum availability.
+	uptime, err := getPeerUptimes(globalAdminPeers)
+	if err != nil {
+		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
+		errorIf(err, "Possibly failed to get uptime from majority of servers.")
+		return
+	}
+
 	// Create API response
 	serverStatus := ServerStatus{
-		StorageInfo:   storageInfo,
 		ServerVersion: serverVersion,
+		Uptime:        uptime,
 	}
 
 	// Marshal API response
@@ -131,8 +137,8 @@ func (adminAPI adminAPIHandlers) ServiceCredentialsHandler(w http.ResponseWriter
 	}
 
 	// Avoid setting new credentials when they are already passed
-	// by the environnement
-	if globalEnvAccessKey != "" || globalEnvSecretKey != "" {
+	// by the environment.
+	if globalIsEnvCreds {
 		writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
 		return
 	}
@@ -154,24 +160,25 @@ func (adminAPI adminAPIHandlers) ServiceCredentialsHandler(w http.ResponseWriter
 	}
 
 	// Check passed credentials
-	cred, err := getCredential(req.Username, req.Password)
-	switch err {
-	case errInvalidAccessKeyLength:
-		writeErrorResponse(w, ErrAdminInvalidAccessKey, r.URL)
-		return
-	case errInvalidSecretKeyLength:
-		writeErrorResponse(w, ErrAdminInvalidSecretKey, r.URL)
+	err = validateAuthKeys(req.Username, req.Password)
+	if err != nil {
+		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
 		return
 	}
 
+	creds := credential{
+		AccessKey: req.Username,
+		SecretKey: req.Password,
+	}
+
 	// Notify all other Minio peers to update credentials
-	updateErrs := updateCredsOnPeers(cred)
+	updateErrs := updateCredsOnPeers(creds)
 	for peer, err := range updateErrs {
 		errorIf(err, "Unable to update credentials on peer %s.", peer)
 	}
 
-	// Update local credentials
-	serverConfig.SetCredential(cred)
+	// Update local credentials in memory.
+	serverConfig.SetCredential(creds)
 	if err = serverConfig.Save(); err != nil {
 		writeErrorResponse(w, ErrInternalError, r.URL)
 		return
@@ -181,11 +188,103 @@ func (adminAPI adminAPIHandlers) ServiceCredentialsHandler(w http.ResponseWriter
 	w.WriteHeader(http.StatusOK)
 }
 
+// ServerProperties holds some server information such as, version, region
+// uptime, etc..
+type ServerProperties struct {
+	Uptime   time.Duration `json:"uptime"`
+	Version  string        `json:"version"`
+	CommitID string        `json:"commitID"`
+	Region   string        `json:"region"`
+	SQSARN   []string      `json:"sqsARN"`
+}
+
+// ServerConnStats holds transferred bytes from/to the server
+type ServerConnStats struct {
+	TotalInputBytes  uint64 `json:"transferred"`
+	TotalOutputBytes uint64 `json:"received"`
+	Throughput       uint64 `json:"throughput,omitempty"`
+}
+
+// ServerInfo holds the information that will be returned by ServerInfo API
+type ServerInfo struct {
+	StorageInfo StorageInfo      `json:"storage"`
+	ConnStats   ServerConnStats  `json:"network"`
+	Properties  ServerProperties `json:"server"`
+}
+
+// ServerInfoHandler - GET /?server-info
+// ----------
+// Get server information
+func (adminAPI adminAPIHandlers) ServerInfoHandler(w http.ResponseWriter, r *http.Request) {
+	// Authenticate request
+	adminAPIErr := checkRequestAuthType(r, "", "", "")
+	if adminAPIErr != ErrNone {
+		writeErrorResponse(w, adminAPIErr, r.URL)
+		return
+	}
+
+	// Build storage info
+	objLayer := newObjectLayerFn()
+	if objLayer == nil {
+		writeErrorResponse(w, ErrServerNotInitialized, r.URL)
+		return
+	}
+	storage := objLayer.StorageInfo()
+
+	// Build list of enabled ARNs queues
+	var arns []string
+	for queueArn := range globalEventNotifier.GetAllExternalTargets() {
+		arns = append(arns, queueArn)
+	}
+
+	// Fetch uptimes from all peers. This may fail to due to lack
+	// of read-quorum availability.
+	uptime, err := getPeerUptimes(globalAdminPeers)
+	if err != nil {
+		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
+		errorIf(err, "Unable to get uptime from majority of servers.")
+		return
+	}
+
+	// Build server properties information
+	properties := ServerProperties{
+		Version:  Version,
+		CommitID: CommitID,
+		Region:   serverConfig.GetRegion(),
+		SQSARN:   arns,
+		Uptime:   uptime,
+	}
+
+	// Build network info
+	connStats := ServerConnStats{
+		TotalInputBytes:  globalConnStats.getTotalInputBytes(),
+		TotalOutputBytes: globalConnStats.getTotalOutputBytes(),
+	}
+
+	// Build the whole returned information
+	info := ServerInfo{
+		StorageInfo: storage,
+		ConnStats:   connStats,
+		Properties:  properties,
+	}
+
+	// Marshal API response
+	jsonBytes, err := json.Marshal(info)
+	if err != nil {
+		writeErrorResponse(w, ErrInternalError, r.URL)
+		errorIf(err, "Failed to marshal storage info into json.")
+		return
+	}
+	// Reply with storage information (across nodes in a
+	// distributed setup) as json.
+	writeSuccessResponseJSON(w, jsonBytes)
+}
+
 // validateLockQueryParams - Validates query params for list/clear locks management APIs.
 func validateLockQueryParams(vars url.Values) (string, string, time.Duration, APIErrorCode) {
 	bucket := vars.Get(string(mgmtBucket))
 	prefix := vars.Get(string(mgmtPrefix))
-	relTimeStr := vars.Get(string(mgmtOlderThan))
+	durationStr := vars.Get(string(mgmtLockDuration))
 
 	// N B empty bucket name is invalid
 	if !IsValidBucketName(bucket) {
@@ -198,24 +297,24 @@ func validateLockQueryParams(vars url.Values) (string, string, time.Duration, AP
 
 	// If older-than parameter was empty then set it to 0s to list
 	// all locks older than now.
-	if relTimeStr == "" {
-		relTimeStr = "0s"
+	if durationStr == "" {
+		durationStr = "0s"
 	}
-	relTime, err := time.ParseDuration(relTimeStr)
+	duration, err := time.ParseDuration(durationStr)
 	if err != nil {
 		errorIf(err, "Failed to parse duration passed as query value.")
 		return "", "", time.Duration(0), ErrInvalidDuration
 	}
 
-	return bucket, prefix, relTime, ErrNone
+	return bucket, prefix, duration, ErrNone
 }
 
-// ListLocksHandler - GET /?lock&bucket=mybucket&prefix=myprefix&older-than=rel_time
+// ListLocksHandler - GET /?lock&bucket=mybucket&prefix=myprefix&duration=duration
 // - bucket is a mandatory query parameter
 // - prefix and older-than are optional query parameters
 // HTTP header x-minio-operation: list
 // ---------
-// Lists locks held on a given bucket, prefix and relative time.
+// Lists locks held on a given bucket, prefix and duration it was held for.
 func (adminAPI adminAPIHandlers) ListLocksHandler(w http.ResponseWriter, r *http.Request) {
 	adminAPIErr := checkRequestAuthType(r, "", "", "")
 	if adminAPIErr != ErrNone {
@@ -224,15 +323,15 @@ func (adminAPI adminAPIHandlers) ListLocksHandler(w http.ResponseWriter, r *http
 	}
 
 	vars := r.URL.Query()
-	bucket, prefix, relTime, adminAPIErr := validateLockQueryParams(vars)
+	bucket, prefix, duration, adminAPIErr := validateLockQueryParams(vars)
 	if adminAPIErr != ErrNone {
 		writeErrorResponse(w, adminAPIErr, r.URL)
 		return
 	}
 
 	// Fetch lock information of locks matching bucket/prefix that
-	// are available since relTime.
-	volLocks, err := listPeerLocksInfo(globalAdminPeers, bucket, prefix, relTime)
+	// are available for longer than duration.
+	volLocks, err := listPeerLocksInfo(globalAdminPeers, bucket, prefix, duration)
 	if err != nil {
 		writeErrorResponse(w, ErrInternalError, r.URL)
 		errorIf(err, "Failed to fetch lock information from remote nodes.")
@@ -248,16 +347,16 @@ func (adminAPI adminAPIHandlers) ListLocksHandler(w http.ResponseWriter, r *http
 	}
 
 	// Reply with list of locks held on bucket, matching prefix
-	// older than relTime supplied, as json.
+	// held longer than duration supplied, as json.
 	writeSuccessResponseJSON(w, jsonBytes)
 }
 
-// ClearLocksHandler - POST /?lock&bucket=mybucket&prefix=myprefix&older-than=relTime
+// ClearLocksHandler - POST /?lock&bucket=mybucket&prefix=myprefix&duration=duration
 // - bucket is a mandatory query parameter
 // - prefix and older-than are optional query parameters
 // HTTP header x-minio-operation: clear
 // ---------
-// Clear locks held on a given bucket, prefix and relative time.
+// Clear locks held on a given bucket, prefix and duration it was held for.
 func (adminAPI adminAPIHandlers) ClearLocksHandler(w http.ResponseWriter, r *http.Request) {
 	adminAPIErr := checkRequestAuthType(r, "", "", "")
 	if adminAPIErr != ErrNone {
@@ -266,15 +365,15 @@ func (adminAPI adminAPIHandlers) ClearLocksHandler(w http.ResponseWriter, r *htt
 	}
 
 	vars := r.URL.Query()
-	bucket, prefix, relTime, adminAPIErr := validateLockQueryParams(vars)
+	bucket, prefix, duration, adminAPIErr := validateLockQueryParams(vars)
 	if adminAPIErr != ErrNone {
 		writeErrorResponse(w, adminAPIErr, r.URL)
 		return
 	}
 
 	// Fetch lock information of locks matching bucket/prefix that
-	// are available since relTime.
-	volLocks, err := listPeerLocksInfo(globalAdminPeers, bucket, prefix, relTime)
+	// are held for longer than duration.
+	volLocks, err := listPeerLocksInfo(globalAdminPeers, bucket, prefix, duration)
 	if err != nil {
 		writeErrorResponse(w, ErrInternalError, r.URL)
 		errorIf(err, "Failed to fetch lock information from remote nodes.")
@@ -289,7 +388,7 @@ func (adminAPI adminAPIHandlers) ClearLocksHandler(w http.ResponseWriter, r *htt
 		return
 	}
 
-	// Remove lock matching bucket/prefix older than relTime.
+	// Remove lock matching bucket/prefix held longer than duration.
 	for _, volLock := range volLocks {
 		globalNSMutex.ForceUnlock(volLock.Bucket, volLock.Object)
 	}
@@ -541,7 +640,6 @@ func (adminAPI adminAPIHandlers) HealFormatHandler(w http.ResponseWriter, r *htt
 	// Create a new set of storage instances to heal format.json.
 	bootstrapDisks, err := initStorageDisks(globalEndpoints)
 	if err != nil {
-		fmt.Println(traceError(err))
 		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
 		return
 	}
@@ -549,7 +647,6 @@ func (adminAPI adminAPIHandlers) HealFormatHandler(w http.ResponseWriter, r *htt
 	// Heal format.json on available storage.
 	err = healFormatXL(bootstrapDisks)
 	if err != nil {
-		fmt.Println(traceError(err))
 		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
 		return
 	}
@@ -557,7 +654,6 @@ func (adminAPI adminAPIHandlers) HealFormatHandler(w http.ResponseWriter, r *htt
 	// Instantiate new object layer with newly formatted storage.
 	newObjectAPI, err := newXLObjects(bootstrapDisks)
 	if err != nil {
-		fmt.Println(traceError(err))
 		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
 		return
 	}

cmd/admin-handlers_test.go

@@ -25,6 +25,7 @@ import (
 	"net/http/httptest"
 	"net/url"
 	"testing"
+	"time"
 
 	router "github.com/gorilla/mux"
 )
@@ -43,6 +44,7 @@ type adminXLTestBed struct {
 func prepareAdminXLTestBed() (*adminXLTestBed, error) {
 	// reset global variables to start afresh.
 	resetTestGlobals()
+
 	// Initialize minio server config.
 	rootPath, err := newTestConfig(globalMinioDefaultRegion)
 	if err != nil {
@@ -54,6 +56,9 @@ func prepareAdminXLTestBed() (*adminXLTestBed, error) {
 		return nil, xlErr
 	}
 
+	// Initialize boot time
+	globalBootTime = time.Now().UTC()
+
 	// Set globalEndpoints for a single node XL setup.
 	for _, xlDir := range xlDirs {
 		globalEndpoints = append(globalEndpoints, &url.URL{
@@ -197,7 +202,7 @@ func testServicesCmdHandler(cmd cmdType, t *testing.T) {
 	// Initialize admin peers to make admin RPC calls. Note: In a
 	// single node setup, this degenerates to a simple function
 	// call under the hood.
-	eps, err := parseStorageEndpoints([]string{"http://localhost"})
+	eps, err := parseStorageEndpoints([]string{"http://127.0.0.1"})
 	if err != nil {
 		t.Fatalf("Failed to parse storage end point - %v", err)
 	}
@@ -224,14 +229,13 @@ func testServicesCmdHandler(cmd cmdType, t *testing.T) {
 
 	if cmd == statusCmd {
 		expectedInfo := ServerStatus{
-			StorageInfo:   newObjectLayerFn().StorageInfo(),
 			ServerVersion: ServerVersion{Version: Version, CommitID: CommitID},
 		}
 		receivedInfo := ServerStatus{}
 		if jsonErr := json.Unmarshal(rec.Body.Bytes(), &receivedInfo); jsonErr != nil {
 			t.Errorf("Failed to unmarshal StorageInfo - %v", jsonErr)
 		}
-		if expectedInfo != receivedInfo {
+		if expectedInfo.ServerVersion != receivedInfo.ServerVersion {
 			t.Errorf("Expected storage info and received storage info differ, %v %v", expectedInfo, receivedInfo)
 		}
 	}
@@ -264,7 +268,7 @@ func TestServiceSetCreds(t *testing.T) {
 	// Initialize admin peers to make admin RPC calls. Note: In a
 	// single node setup, this degenerates to a simple function
 	// call under the hood.
-	eps, err := parseStorageEndpoints([]string{"http://localhost"})
+	eps, err := parseStorageEndpoints([]string{"http://127.0.0.1"})
 	if err != nil {
 		t.Fatalf("Failed to parse storage end point - %v", err)
 	}
@@ -294,11 +298,9 @@ func TestServiceSetCreds(t *testing.T) {
 	for i, testCase := range testCases {
 		// Set or unset environement keys
 		if !testCase.EnvKeysSet {
-			globalEnvAccessKey = ""
-			globalEnvSecretKey = ""
+			globalIsEnvCreds = false
 		} else {
-			globalEnvAccessKey = testCase.Username
-			globalEnvSecretKey = testCase.Password
+			globalIsEnvCreds = true
 		}
 
 		// Construct setCreds request body
@@ -336,12 +338,12 @@ func TestServiceSetCreds(t *testing.T) {
 }
 
 // mkLockQueryVal - helper function to build lock query param.
-func mkLockQueryVal(bucket, prefix, relTimeStr string) url.Values {
+func mkLockQueryVal(bucket, prefix, durationStr string) url.Values {
 	qVal := url.Values{}
 	qVal.Set("lock", "")
 	qVal.Set(string(mgmtBucket), bucket)
 	qVal.Set(string(mgmtPrefix), prefix)
-	qVal.Set(string(mgmtOlderThan), relTimeStr)
+	qVal.Set(string(mgmtLockDuration), durationStr)
 	return qVal
 }
 
@@ -354,7 +356,7 @@ func TestListLocksHandler(t *testing.T) {
 	defer adminTestBed.TearDown()
 
 	// Initialize admin peers to make admin RPC calls.
-	eps, err := parseStorageEndpoints([]string{"http://localhost"})
+	eps, err := parseStorageEndpoints([]string{"http://127.0.0.1"})
 	if err != nil {
 		t.Fatalf("Failed to parse storage end point - %v", err)
 	}
@@ -366,41 +368,41 @@ func TestListLocksHandler(t *testing.T) {
 	testCases := []struct {
 		bucket         string
 		prefix         string
-		relTime        string
+		duration       string
 		expectedStatus int
 	}{
 		// Test 1 - valid testcase
 		{
 			bucket:         "mybucket",
 			prefix:         "myobject",
-			relTime:        "1s",
+			duration:       "1s",
 			expectedStatus: http.StatusOK,
 		},
 		// Test 2 - invalid duration
 		{
 			bucket:         "mybucket",
 			prefix:         "myprefix",
-			relTime:        "invalidDuration",
+			duration:       "invalidDuration",
 			expectedStatus: http.StatusBadRequest,
 		},
 		// Test 3 - invalid bucket name
 		{
 			bucket:         `invalid\\Bucket`,
 			prefix:         "myprefix",
-			relTime:        "1h",
+			duration:       "1h",
 			expectedStatus: http.StatusBadRequest,
 		},
 		// Test 4 - invalid prefix
 		{
 			bucket:         "mybucket",
 			prefix:         `invalid\\Prefix`,
-			relTime:        "1h",
+			duration:       "1h",
 			expectedStatus: http.StatusBadRequest,
 		},
 	}
 
 	for i, test := range testCases {
-		queryVal := mkLockQueryVal(test.bucket, test.prefix, test.relTime)
+		queryVal := mkLockQueryVal(test.bucket, test.prefix, test.duration)
 		req, err := newTestRequest("GET", "/?"+queryVal.Encode(), 0, nil)
 		if err != nil {
 			t.Fatalf("Test %d - Failed to construct list locks request - %v", i+1, err)
@@ -429,7 +431,7 @@ func TestClearLocksHandler(t *testing.T) {
 	defer adminTestBed.TearDown()
 
 	// Initialize admin peers to make admin RPC calls.
-	eps, err := parseStorageEndpoints([]string{"http://localhost"})
+	eps, err := parseStorageEndpoints([]string{"http://127.0.0.1"})
 	if err != nil {
 		t.Fatalf("Failed to parse storage end point - %v", err)
 	}
@@ -438,41 +440,41 @@ func TestClearLocksHandler(t *testing.T) {
 	testCases := []struct {
 		bucket         string
 		prefix         string
-		relTime        string
+		duration       string
 		expectedStatus int
 	}{
 		// Test 1 - valid testcase
 		{
 			bucket:         "mybucket",
 			prefix:         "myobject",
-			relTime:        "1s",
+			duration:       "1s",
 			expectedStatus: http.StatusOK,
 		},
 		// Test 2 - invalid duration
 		{
 			bucket:         "mybucket",
 			prefix:         "myprefix",
-			relTime:        "invalidDuration",
+			duration:       "invalidDuration",
 			expectedStatus: http.StatusBadRequest,
 		},
 		// Test 3 - invalid bucket name
 		{
 			bucket:         `invalid\\Bucket`,
 			prefix:         "myprefix",
-			relTime:        "1h",
+			duration:       "1h",
 			expectedStatus: http.StatusBadRequest,
 		},
 		// Test 4 - invalid prefix
 		{
 			bucket:         "mybucket",
 			prefix:         `invalid\\Prefix`,
-			relTime:        "1h",
+			duration:       "1h",
 			expectedStatus: http.StatusBadRequest,
 		},
 	}
 
 	for i, test := range testCases {
-		queryVal := mkLockQueryVal(test.bucket, test.prefix, test.relTime)
+		queryVal := mkLockQueryVal(test.bucket, test.prefix, test.duration)
 		req, err := newTestRequest("POST", "/?"+queryVal.Encode(), 0, nil)
 		if err != nil {
 			t.Fatalf("Test %d - Failed to construct clear locks request - %v", i+1, err)

cmd/admin-router.go

@@ -39,6 +39,9 @@ func registerAdminRouter(mux *router.Router) {
 	// Service update credentials
 	adminRouter.Methods("POST").Queries("service", "").Headers(minioAdminOpHeader, "set-credentials").HandlerFunc(adminAPI.ServiceCredentialsHandler)
 
+	// Info operations
+	adminRouter.Methods("GET").Queries("info", "").HandlerFunc(adminAPI.ServerInfoHandler)
+
 	/// Lock operations
 
 	// List Locks

cmd/admin-rpc-client.go

@@ -19,6 +19,7 @@ package cmd
 import (
 	"net/url"
 	"path"
+	"sort"
 	"sync"
 	"time"
 )
@@ -37,8 +38,9 @@ type remoteAdminClient struct {
 // commands like service stop and service restart.
 type adminCmdRunner interface {
 	Restart() error
-	ListLocks(bucket, prefix string, relTime time.Duration) ([]VolumeLockInfo, error)
+	ListLocks(bucket, prefix string, duration time.Duration) ([]VolumeLockInfo, error)
 	ReInitDisks() error
+	Uptime() (time.Duration, error)
 }
 
 // Restart - Sends a message over channel to the go-routine
@@ -49,8 +51,8 @@ func (lc localAdminClient) Restart() error {
 }
 
 // ListLocks - Fetches lock information from local lock instrumentation.
-func (lc localAdminClient) ListLocks(bucket, prefix string, relTime time.Duration) ([]VolumeLockInfo, error) {
-	return listLocksInfo(bucket, prefix, relTime), nil
+func (lc localAdminClient) ListLocks(bucket, prefix string, duration time.Duration) ([]VolumeLockInfo, error) {
+	return listLocksInfo(bucket, prefix, duration), nil
 }
 
 // Restart - Sends restart command to remote server via RPC.
@@ -61,11 +63,11 @@ func (rc remoteAdminClient) Restart() error {
 }
 
 // ListLocks - Sends list locks command to remote server via RPC.
-func (rc remoteAdminClient) ListLocks(bucket, prefix string, relTime time.Duration) ([]VolumeLockInfo, error) {
+func (rc remoteAdminClient) ListLocks(bucket, prefix string, duration time.Duration) ([]VolumeLockInfo, error) {
 	listArgs := ListLocksQuery{
-		bucket:  bucket,
-		prefix:  prefix,
-		relTime: relTime,
+		bucket:   bucket,
+		prefix:   prefix,
+		duration: duration,
 	}
 	var reply ListLocksReply
 	if err := rc.Call("Admin.ListLocks", &listArgs, &reply); err != nil {
@@ -88,6 +90,28 @@ func (rc remoteAdminClient) ReInitDisks() error {
 	return rc.Call("Admin.ReInitDisks", &args, &reply)
 }
 
+// Uptime - Returns the uptime of this server. Timestamp is taken
+// after object layer is initialized.
+func (lc localAdminClient) Uptime() (time.Duration, error) {
+	if globalBootTime.IsZero() {
+		return time.Duration(0), errServerNotInitialized
+	}
+
+	return time.Now().UTC().Sub(globalBootTime), nil
+}
+
+// Uptime - returns the uptime of the server to which the RPC call is made.
+func (rc remoteAdminClient) Uptime() (time.Duration, error) {
+	args := AuthRPCArgs{}
+	reply := UptimeReply{}
+	err := rc.Call("Admin.Uptime", &args, &reply)
+	if err != nil {
+		return time.Duration(0), err
+	}
+
+	return reply.Uptime, nil
+}
+
 // adminPeer - represents an entity that implements Restart methods.
 type adminPeer struct {
 	addr      string
@@ -175,8 +199,8 @@ func sendServiceCmd(cps adminPeers, cmd serviceSignal) {
 }
 
 // listPeerLocksInfo - fetch list of locks held on the given bucket,
-// matching prefix older than relTime from all peer servers.
-func listPeerLocksInfo(peers adminPeers, bucket, prefix string, relTime time.Duration) ([]VolumeLockInfo, error) {
+// matching prefix held longer than duration from all peer servers.
+func listPeerLocksInfo(peers adminPeers, bucket, prefix string, duration time.Duration) ([]VolumeLockInfo, error) {
 	// Used to aggregate volume lock information from all nodes.
 	allLocks := make([][]VolumeLockInfo, len(peers))
 	errs := make([]error, len(peers))
@@ -188,11 +212,11 @@ func listPeerLocksInfo(peers adminPeers, bucket, prefix string, relTime time.Dur
 		go func(idx int, remotePeer adminPeer) {
 			defer wg.Done()
 			// `remotePeers` is right-shifted by one position relative to `peers`
-			allLocks[idx], errs[idx] = remotePeer.cmdRunner.ListLocks(bucket, prefix, relTime)
+			allLocks[idx], errs[idx] = remotePeer.cmdRunner.ListLocks(bucket, prefix, duration)
 		}(i+1, remotePeer)
 	}
 	wg.Wait()
-	allLocks[0], errs[0] = localPeer.cmdRunner.ListLocks(bucket, prefix, relTime)
+	allLocks[0], errs[0] = localPeer.cmdRunner.ListLocks(bucket, prefix, duration)
 
 	// Summarizing errors received for ListLocks RPC across all
 	// nodes.  N B the possible unavailability of quorum in errors
@@ -241,3 +265,74 @@ func reInitPeerDisks(peers adminPeers) error {
 	wg.Wait()
 	return nil
 }
+
+// uptimeSlice - used to sort uptimes in chronological order.
+type uptimeSlice []struct {
+	err    error
+	uptime time.Duration
+}
+
+func (ts uptimeSlice) Len() int {
+	return len(ts)
+}
+
+func (ts uptimeSlice) Less(i, j int) bool {
+	return ts[i].uptime < ts[j].uptime
+}
+
+func (ts uptimeSlice) Swap(i, j int) {
+	ts[i], ts[j] = ts[j], ts[i]
+}
+
+// getPeerUptimes - returns the uptime since the last time read quorum
+// was established on success. Otherwise returns errXLReadQuorum.
+func getPeerUptimes(peers adminPeers) (time.Duration, error) {
+	// In a single node Erasure or FS backend setup the uptime of
+	// the setup is the uptime of the single minio server
+	// instance.
+	if !globalIsDistXL {
+		return time.Now().UTC().Sub(globalBootTime), nil
+	}
+
+	uptimes := make(uptimeSlice, len(peers))
+
+	// Get up time of all servers.
+	wg := sync.WaitGroup{}
+	for i, peer := range peers {
+		wg.Add(1)
+		go func(idx int, peer adminPeer) {
+			defer wg.Done()
+			uptimes[idx].uptime, uptimes[idx].err = peer.cmdRunner.Uptime()
+		}(i, peer)
+	}
+	wg.Wait()
+
+	// Sort uptimes in chronological order.
+	sort.Sort(uptimes)
+
+	// Pick the readQuorum'th uptime in chronological order. i.e,
+	// the time at which read quorum was (re-)established.
+	readQuorum := len(uptimes) / 2
+	validCount := 0
+	latestUptime := time.Duration(0)
+	for _, uptime := range uptimes {
+		if uptime.err != nil {
+			errorIf(uptime.err, "Unable to fetch uptime")
+			continue
+		}
+
+		validCount++
+		if validCount >= readQuorum {
+			latestUptime = uptime.uptime
+			break
+		}
+	}
+
+	// Less than readQuorum "Admin.Uptime" RPC call returned
+	// successfully, so read-quorum unavailable.
+	if validCount < readQuorum {
+		return time.Duration(0), InsufficientReadQuorum{}
+	}
+
+	return latestUptime, nil
+}

cmd/admin-rpc-server.go

@@ -37,9 +37,9 @@ type adminCmd struct {
 // ListLocksQuery - wraps ListLocks API's query values to send over RPC.
 type ListLocksQuery struct {
 	AuthRPCArgs
-	bucket  string
-	prefix  string
-	relTime time.Duration
+	bucket   string
+	prefix   string
+	duration time.Duration
 }
 
 // ListLocksReply - wraps ListLocks response over RPC.
@@ -48,6 +48,12 @@ type ListLocksReply struct {
 	volLocks []VolumeLockInfo
 }
 
+// UptimeReply - wraps the uptime response over RPC.
+type UptimeReply struct {
+	AuthRPCReply
+	Uptime time.Duration
+}
+
 // Restart - Restart this instance of minio server.
 func (s *adminCmd) Restart(args *AuthRPCArgs, reply *AuthRPCReply) error {
 	if err := args.IsAuthenticated(); err != nil {
@@ -63,7 +69,7 @@ func (s *adminCmd) ListLocks(query *ListLocksQuery, reply *ListLocksReply) error
 	if err := query.IsAuthenticated(); err != nil {
 		return err
 	}
-	volLocks := listLocksInfo(query.bucket, query.prefix, query.relTime)
+	volLocks := listLocksInfo(query.bucket, query.prefix, query.duration)
 	*reply = ListLocksReply{volLocks: volLocks}
 	return nil
 }
@@ -105,6 +111,27 @@ func (s *adminCmd) ReInitDisks(args *AuthRPCArgs, reply *AuthRPCReply) error {
 	return nil
 }
 
+// Uptime - returns the time when object layer was initialized on this server.
+func (s *adminCmd) Uptime(args *AuthRPCArgs, reply *UptimeReply) error {
+	if err := args.IsAuthenticated(); err != nil {
+		return err
+	}
+
+	if globalBootTime.IsZero() {
+		return errServerNotInitialized
+	}
+
+	// N B The uptime is computed assuming that the system time is
+	// monotonic. This is not the case in time pkg in Go, see
+	// https://github.com/golang/go/issues/12914. This is expected
+	// to be fixed by go1.9.
+	*reply = UptimeReply{
+		Uptime: time.Now().UTC().Sub(globalBootTime),
+	}
+
+	return nil
+}
+
 // registerAdminRPCRouter - registers RPC methods for service status,
 // stop and restart commands.
 func registerAdminRPCRouter(mux *router.Router) error {

cmd/api-errors.go

@@ -83,6 +83,7 @@ const (
 	ErrInvalidPartOrder
 	ErrAuthorizationHeaderMalformed
 	ErrMalformedPOSTRequest
+	ErrPOSTFileRequired
 	ErrSignatureVersionNotSupported
 	ErrBucketNotEmpty
 	ErrAllAccessDisabled
@@ -333,6 +334,11 @@ var errorCodeResponse = map[APIErrorCode]APIError{
 		Description:    "The body of your POST request is not well-formed multipart/form-data.",
 		HTTPStatusCode: http.StatusBadRequest,
 	},
+	ErrPOSTFileRequired: {
+		Code:           "InvalidArgument",
+		Description:    "POST requires exactly one file upload per request.",
+		HTTPStatusCode: http.StatusBadRequest,
+	},
 	ErrSignatureVersionNotSupported: {
 		Code:           "InvalidRequest",
 		Description:    "The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.",
@@ -483,7 +489,7 @@ var errorCodeResponse = map[APIErrorCode]APIError{
 	},
 	ErrInvalidDuration: {
 		Code:           "InvalidDuration",
-		Description:    "Relative duration provided in the request is invalid.",
+		Description:    "Duration provided in the request is invalid.",
 		HTTPStatusCode: http.StatusBadRequest,
 	},
 
@@ -606,6 +612,14 @@ func toAPIErrorCode(err error) (apiErr APIErrorCode) {
 		apiErr = ErrSignatureDoesNotMatch
 	case errContentSHA256Mismatch:
 		apiErr = ErrContentSHA256Mismatch
+	case errDataTooLarge:
+		apiErr = ErrEntityTooLarge
+	case errDataTooSmall:
+		apiErr = ErrEntityTooSmall
+	case errInvalidAccessKeyLength:
+		apiErr = ErrAdminInvalidAccessKey
+	case errInvalidSecretKeyLength:
+		apiErr = ErrAdminInvalidSecretKey
 	}
 
 	if apiErr != ErrNone {

cmd/api-response.go

@@ -208,6 +208,13 @@ type CopyObjectResponse struct {
 	ETag         string   // md5sum of the copied object.
 }
 
+// CopyObjectPartResponse container returns ETag and LastModified of the successfully copied object
+type CopyObjectPartResponse struct {
+	XMLName      xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CopyPartResult" json:"-"`
+	LastModified string   // time string of format "2006-01-02T15:04:05.000Z"
+	ETag         string   // md5sum of the copied object part.
+}
+
 // Initiator inherit from Owner struct, fields are same
 type Initiator Owner
 
@@ -399,6 +406,14 @@ func generateCopyObjectResponse(etag string, lastModified time.Time) CopyObjectR
 	}
 }
 
+// generates CopyObjectPartResponse from etag and lastModified time.
+func generateCopyObjectPartResponse(etag string, lastModified time.Time) CopyObjectPartResponse {
+	return CopyObjectPartResponse{
+		ETag:         "\"" + etag + "\"",
+		LastModified: lastModified.UTC().Format(timeFormatAMZLong),
+	}
+}
+
 // generates InitiateMultipartUploadResponse for given bucket, key and uploadID.
 func generateInitiateMultipartUploadResponse(bucket, key, uploadID string) InitiateMultipartUploadResponse {
 	return InitiateMultipartUploadResponse{

cmd/api-router.go

@@ -40,6 +40,8 @@ func registerAPIRouter(mux *router.Router) {
 
 	// HeadObject
 	bucket.Methods("HEAD").Path("/{object:.+}").HandlerFunc(api.HeadObjectHandler)
+	// CopyObjectPart
+	bucket.Methods("PUT").Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", ".*?(\\/|%2F).*?").HandlerFunc(api.CopyObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
 	// PutObjectPart
 	bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(api.PutObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
 	// ListObjectPxarts

cmd/auth-handler.go

@@ -125,7 +125,8 @@ func checkRequestAuthType(r *http.Request, bucket, policyAction, region string)
 
 	if reqAuthType == authTypeAnonymous && policyAction != "" {
 		// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
-		return enforceBucketPolicy(bucket, policyAction, r.URL)
+		return enforceBucketPolicy(bucket, policyAction, r.URL.Path,
+			r.Referer(), r.URL.Query())
 	}
 
 	// By default return ErrAccessDenied

cmd/auth-handler_test.go

@@ -36,7 +36,7 @@ func TestGetRequestAuthType(t *testing.T) {
 		{
 			req: &http.Request{
 				URL: &url.URL{
-					Host:   "localhost:9000",
+					Host:   "127.0.0.1:9000",
 					Scheme: httpScheme,
 					Path:   "/",
 				},
@@ -53,7 +53,7 @@ func TestGetRequestAuthType(t *testing.T) {
 		{
 			req: &http.Request{
 				URL: &url.URL{
-					Host:   "localhost:9000",
+					Host:   "127.0.0.1:9000",
 					Scheme: httpScheme,
 					Path:   "/",
 				},
@@ -68,7 +68,7 @@ func TestGetRequestAuthType(t *testing.T) {
 		{
 			req: &http.Request{
 				URL: &url.URL{
-					Host:   "localhost:9000",
+					Host:   "127.0.0.1:9000",
 					Scheme: httpScheme,
 					Path:   "/",
 				},
@@ -83,7 +83,7 @@ func TestGetRequestAuthType(t *testing.T) {
 		{
 			req: &http.Request{
 				URL: &url.URL{
-					Host:     "localhost:9000",
+					Host:     "127.0.0.1:9000",
 					Scheme:   httpScheme,
 					Path:     "/",
 					RawQuery: "X-Amz-Credential=EXAMPLEINVALIDEXAMPL%2Fs3%2F20160314%2Fus-east-1",
@@ -96,7 +96,7 @@ func TestGetRequestAuthType(t *testing.T) {
 		{
 			req: &http.Request{
 				URL: &url.URL{
-					Host:   "localhost:9000",
+					Host:   "127.0.0.1:9000",
 					Scheme: httpScheme,
 					Path:   "/",
 				},
@@ -315,7 +315,8 @@ func TestIsReqAuthenticated(t *testing.T) {
 	}
 	defer removeAll(path)
 
-	serverConfig.SetCredential(credential{"myuser", "mypassword"})
+	creds := newCredentialWithKeys("myuser", "mypassword")
+	serverConfig.SetCredential(creds)
 
 	// List of test cases for validating http request authentication.
 	testCases := []struct {
@@ -325,11 +326,11 @@ func TestIsReqAuthenticated(t *testing.T) {
 		// When request is nil, internal error is returned.
 		{nil, ErrInternalError},
 		// When request is unsigned, access denied is returned.
-		{mustNewRequest("GET", "http://localhost:9000", 0, nil, t), ErrAccessDenied},
+		{mustNewRequest("GET", "http://127.0.0.1:9000", 0, nil, t), ErrAccessDenied},
 		// When request is properly signed, but has bad Content-MD5 header.
-		{mustNewSignedRequest("PUT", "http://localhost:9000", 5, bytes.NewReader([]byte("hello")), t), ErrBadDigest},
+		{mustNewSignedRequest("PUT", "http://127.0.0.1:9000", 5, bytes.NewReader([]byte("hello")), t), ErrBadDigest},
 		// When request is properly signed, error is none.
-		{mustNewSignedRequest("GET", "http://localhost:9000", 0, nil, t), ErrNone},
+		{mustNewSignedRequest("GET", "http://127.0.0.1:9000", 0, nil, t), ErrNone},
 	}
 
 	// Validates all testcases.

cmd/auth-rpc-client.go

@@ -35,6 +35,19 @@ type authConfig struct {
 	secureConn       bool   // Make TLS connection to RPC server or not.
 	serviceName      string // Service name of auth server.
 	disableReconnect bool   // Disable reconnect on failure or not.
+
+	/// Retry configurable values.
+
+	// Each retry unit multiplicative, measured in time.Duration.
+	// This is the basic unit used for calculating backoffs.
+	retryUnit time.Duration
+	// Maximum retry duration i.e A caller would wait no more than this
+	// duration to continue their loop.
+	retryCap time.Duration
+
+	// Maximum retries an call authRPC client would do for a failed
+	// RPC call.
+	retryAttemptThreshold int
 }
 
 // AuthRPCClient is a authenticated RPC client which does authentication before doing Call().
@@ -47,6 +60,18 @@ type AuthRPCClient struct {
 
 // newAuthRPCClient - returns a JWT based authenticated (go) rpc client, which does automatic reconnect.
 func newAuthRPCClient(config authConfig) *AuthRPCClient {
+	// Check if retry params are set properly if not default them.
+	emptyDuration := time.Duration(int64(0))
+	if config.retryUnit == emptyDuration {
+		config.retryUnit = defaultRetryUnit
+	}
+	if config.retryCap == emptyDuration {
+		config.retryCap = defaultRetryCap
+	}
+	if config.retryAttemptThreshold == 0 {
+		config.retryAttemptThreshold = globalAuthRPCRetryThreshold
+	}
+
 	return &AuthRPCClient{
 		rpcClient: newRPCClient(config.serverAddr, config.serviceEndpoint, config.secureConn),
 		config:    config,
@@ -105,9 +130,13 @@ func (authClient *AuthRPCClient) Call(serviceMethod string, args interface {
 	SetAuthToken(authToken string)
 	SetRequestTime(requestTime time.Time)
 }, reply interface{}) (err error) {
+
+	// Done channel is used to close any lingering retry routine, as soon
+	// as this function returns.
 	doneCh := make(chan struct{})
 	defer close(doneCh)
-	for i := range newRetryTimer(time.Second, 30*time.Second, MaxJitter, doneCh) {
+
+	for i := range newRetryTimer(authClient.config.retryUnit, authClient.config.retryCap, doneCh) {
 		if err = authClient.call(serviceMethod, args, reply); err == rpc.ErrShutdown {
 			// As connection at server side is closed, close the rpc client.
 			authClient.Close()
@@ -115,7 +144,7 @@ func (authClient *AuthRPCClient) Call(serviceMethod string, args interface {
 			// Retry if reconnect is not disabled.
 			if !authClient.config.disableReconnect {
 				// Retry until threshold reaches.
-				if i < globalAuthRPCRetryThreshold {
+				if i < authClient.config.retryAttemptThreshold {
 					continue
 				}
 			}

cmd/benchmark-utils_test.go

@@ -133,11 +133,12 @@ func runPutObjectPartBenchmark(b *testing.B, obj ObjectLayer, partSize int) {
 			}
 			metadata := make(map[string]string)
 			metadata["md5Sum"] = getMD5Hash([]byte(textPartData))
-			md5Sum, err = obj.PutObjectPart(bucket, object, uploadID, j, int64(len(textPartData)), bytes.NewBuffer(textPartData), metadata["md5Sum"], sha256sum)
+			var partInfo PartInfo
+			partInfo, err = obj.PutObjectPart(bucket, object, uploadID, j, int64(len(textPartData)), bytes.NewBuffer(textPartData), metadata["md5Sum"], sha256sum)
 			if err != nil {
 				b.Fatal(err)
 			}
-			if md5Sum != metadata["md5Sum"] {
+			if partInfo.ETag != metadata["md5Sum"] {
 				b.Fatalf("Write no: %d: Md5Sum mismatch during object write into the bucket: Expected %s, got %s", i+1, md5Sum, metadata["md5Sum"])
 			}
 		}

cmd/browser-peer-rpc.go

@@ -63,6 +63,10 @@ func (br *browserPeerAPIHandlers) SetAuthPeer(args SetAuthPeerArgs, reply *AuthR
 		return err
 	}
 
+	if err := validateAuthKeys(args.Creds.AccessKey, args.Creds.SecretKey); err != nil {
+		return err
+	}
+
 	// Update credentials in memory
 	serverConfig.SetCredential(args.Creds)
 

cmd/bucket-handlers-listobjects.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"net/http"
-	"strings"
 
 	"github.com/gorilla/mux"
 )
@@ -44,7 +43,7 @@ func validateListObjectsArgs(prefix, marker, delimiter string, maxKeys int) APIE
 	// Marker is set validate pre-condition.
 	if marker != "" {
 		// Marker not common with prefix is not implemented.
-		if !strings.HasPrefix(marker, prefix) {
+		if !hasPrefix(marker, prefix) {
 			return ErrNotImplemented
 		}
 	}

cmd/bucket-handlers.go

@@ -33,7 +33,7 @@ import (
 
 // http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
 // Enforces bucket policies for a bucket for a given tatusaction.
-func enforceBucketPolicy(bucket string, action string, reqURL *url.URL) (s3Error APIErrorCode) {
+func enforceBucketPolicy(bucket, action, resource, referer string, queryParams url.Values) (s3Error APIErrorCode) {
 	// Verify if bucket actually exists
 	if err := checkBucketExist(bucket, newObjectLayerFn()); err != nil {
 		err = errorCause(err)
@@ -57,16 +57,21 @@ func enforceBucketPolicy(bucket string, action string, reqURL *url.URL) (s3Error
 	}
 
 	// Construct resource in 'arn:aws:s3:::examplebucket/object' format.
-	resource := bucketARNPrefix + strings.TrimSuffix(strings.TrimPrefix(reqURL.Path, "/"), "/")
+	arn := bucketARNPrefix + strings.TrimSuffix(strings.TrimPrefix(resource, "/"), "/")
 
 	// Get conditions for policy verification.
 	conditionKeyMap := make(map[string]set.StringSet)
-	for queryParam := range reqURL.Query() {
-		conditionKeyMap[queryParam] = set.CreateStringSet(reqURL.Query().Get(queryParam))
+	for queryParam := range queryParams {
+		conditionKeyMap[queryParam] = set.CreateStringSet(queryParams.Get(queryParam))
+	}
+
+	// Add request referer to conditionKeyMap if present.
+	if referer != "" {
+		conditionKeyMap["referer"] = set.CreateStringSet(referer)
 	}
 
 	// Validate action, resource and conditions with current policy statements.
-	if !bucketPolicyEvalStatements(action, resource, conditionKeyMap, policy.Statements) {
+	if !bucketPolicyEvalStatements(action, arn, conditionKeyMap, policy.Statements) {
 		return ErrAccessDenied
 	}
 	return ErrNone
@@ -160,7 +165,7 @@ func (api objectAPIHandlers) ListMultipartUploadsHandler(w http.ResponseWriter,
 	}
 	if keyMarker != "" {
 		// Marker not common with prefix is not implemented.
-		if !strings.HasPrefix(keyMarker, prefix) {
+		if !hasPrefix(keyMarker, prefix) {
 			writeErrorResponse(w, ErrNotImplemented, r.URL)
 			return
 		}
@@ -388,6 +393,13 @@ func (api objectAPIHandlers) PostPolicyBucketHandler(w http.ResponseWriter, r *h
 		return
 	}
 
+	// Require Content-Length to be set in the request
+	size := r.ContentLength
+	if size < 0 {
+		writeErrorResponse(w, ErrMissingContentLength, r.URL)
+		return
+	}
+
 	// Here the parameter is the size of the form data that should
 	// be loaded in memory, the remaining being put in temporary files.
 	reader, err := r.MultipartReader()
@@ -397,12 +409,34 @@ func (api objectAPIHandlers) PostPolicyBucketHandler(w http.ResponseWriter, r *h
 		return
 	}
 
-	fileBody, fileName, formValues, err := extractPostPolicyFormValues(reader)
+	// Read multipart data and save in memory and in the disk if needed
+	form, err := reader.ReadForm(maxFormMemory)
+	if err != nil {
+		errorIf(err, "Unable to initialize multipart reader.")
+		writeErrorResponse(w, ErrMalformedPOSTRequest, r.URL)
+		return
+	}
+
+	// Remove all tmp files creating during multipart upload
+	defer form.RemoveAll()
+
+	// Extract all form fields
+	fileBody, fileName, fileSize, formValues, err := extractPostPolicyFormValues(form)
 	if err != nil {
 		errorIf(err, "Unable to parse form values.")
 		writeErrorResponse(w, ErrMalformedPOSTRequest, r.URL)
 		return
 	}
+
+	// Check if file is provided, error out otherwise.
+	if fileBody == nil {
+		writeErrorResponse(w, ErrPOSTFileRequired, r.URL)
+		return
+	}
+
+	// Close multipart file
+	defer fileBody.Close()
+
 	bucket := mux.Vars(r)["bucket"]
 	formValues["Bucket"] = bucket
 
@@ -438,21 +472,20 @@ func (api objectAPIHandlers) PostPolicyBucketHandler(w http.ResponseWriter, r *h
 		return
 	}
 
-	// Use rangeReader to ensure that object size is within expected range.
+	// Ensure that the object size is within expected range, also the file size
+	// should not exceed the maximum single Put size (5 GiB)
 	lengthRange := postPolicyForm.Conditions.ContentLengthRange
 	if lengthRange.Valid {
-		// If policy restricted the size of the object.
-		fileBody = &rangeReader{
-			Reader: fileBody,
-			Min:    lengthRange.Min,
-			Max:    lengthRange.Max,
+		if fileSize < lengthRange.Min {
+			errorIf(err, "Unable to create object.")
+			writeErrorResponse(w, toAPIErrorCode(errDataTooSmall), r.URL)
+			return
 		}
-	} else {
-		// Default values of min/max size of the object.
-		fileBody = &rangeReader{
-			Reader: fileBody,
-			Min:    0,
-			Max:    maxObjectSize,
+
+		if fileSize > lengthRange.Max || fileSize > maxObjectSize {
+			errorIf(err, "Unable to create object.")
+			writeErrorResponse(w, toAPIErrorCode(errDataTooLarge), r.URL)
+			return
 		}
 	}
 
@@ -465,7 +498,7 @@ func (api objectAPIHandlers) PostPolicyBucketHandler(w http.ResponseWriter, r *h
 	objectLock.Lock()
 	defer objectLock.Unlock()
 
-	objInfo, err := objectAPI.PutObject(bucket, object, -1, fileBody, metadata, sha256sum)
+	objInfo, err := objectAPI.PutObject(bucket, object, fileSize, fileBody, metadata, sha256sum)
 	if err != nil {
 		errorIf(err, "Unable to create object.")
 		writeErrorResponse(w, toAPIErrorCode(err), r.URL)

cmd/bucket-notification-utils.go

@@ -133,27 +133,27 @@ func isValidQueueID(queueARN string) bool {
 	// Is Queue identifier valid?.
 
 	if isAMQPQueue(sqsARN) { // AMQP eueue.
-		amqpN := serverConfig.GetAMQPNotifyByID(sqsARN.AccountID)
+		amqpN := serverConfig.Notify.GetAMQPByID(sqsARN.AccountID)
 		return amqpN.Enable && amqpN.URL != ""
 	} else if isNATSQueue(sqsARN) {
-		natsN := serverConfig.GetNATSNotifyByID(sqsARN.AccountID)
+		natsN := serverConfig.Notify.GetNATSByID(sqsARN.AccountID)
 		return natsN.Enable && natsN.Address != ""
 	} else if isElasticQueue(sqsARN) { // Elastic queue.
-		elasticN := serverConfig.GetElasticSearchNotifyByID(sqsARN.AccountID)
+		elasticN := serverConfig.Notify.GetElasticSearchByID(sqsARN.AccountID)
 		return elasticN.Enable && elasticN.URL != ""
 	} else if isRedisQueue(sqsARN) { // Redis queue.
-		redisN := serverConfig.GetRedisNotifyByID(sqsARN.AccountID)
+		redisN := serverConfig.Notify.GetRedisByID(sqsARN.AccountID)
 		return redisN.Enable && redisN.Addr != ""
 	} else if isPostgreSQLQueue(sqsARN) {
-		pgN := serverConfig.GetPostgreSQLNotifyByID(sqsARN.AccountID)
+		pgN := serverConfig.Notify.GetPostgreSQLByID(sqsARN.AccountID)
 		// Postgres can work with only default conn. info.
 		return pgN.Enable
 	} else if isKafkaQueue(sqsARN) {
-		kafkaN := serverConfig.GetKafkaNotifyByID(sqsARN.AccountID)
+		kafkaN := serverConfig.Notify.GetKafkaByID(sqsARN.AccountID)
 		return (kafkaN.Enable && len(kafkaN.Brokers) > 0 &&
 			kafkaN.Topic != "")
 	} else if isWebhookQueue(sqsARN) {
-		webhookN := serverConfig.GetWebhookNotifyByID(sqsARN.AccountID)
+		webhookN := serverConfig.Notify.GetWebhookByID(sqsARN.AccountID)
 		return webhookN.Enable && webhookN.Endpoint != ""
 	}
 	return false

cmd/bucket-policy-handlers.go

@@ -21,6 +21,8 @@ import (
 	"io"
 	"io/ioutil"
 	"net/http"
+	"runtime"
+	"strings"
 
 	humanize "github.com/dustin/go-humanize"
 	mux "github.com/gorilla/mux"
@@ -63,6 +65,10 @@ func bucketPolicyActionMatch(action string, statement policyStatement) bool {
 
 // Match function matches wild cards in 'pattern' for resource.
 func resourceMatch(pattern, resource string) bool {
+	if runtime.GOOS == "windows" {
+		// For windows specifically make sure we are case insensitive.
+		return wildcard.Match(strings.ToLower(pattern), strings.ToLower(resource))
+	}
 	return wildcard.Match(pattern, resource)
 }
 
@@ -71,6 +77,10 @@ func actionMatch(pattern, action string) bool {
 	return wildcard.MatchSimple(pattern, action)
 }
 
+func refererMatch(pattern, referer string) bool {
+	return wildcard.MatchSimple(pattern, referer)
+}
+
 // Verify if given resource matches with policy statement.
 func bucketPolicyResourceMatch(resource string, statement policyStatement) bool {
 	// the resource rule for object could contain "*" wild card.
@@ -85,33 +95,74 @@ func bucketPolicyConditionMatch(conditions map[string]set.StringSet, statement p
 	// Supports following conditions.
 	// - StringEquals
 	// - StringNotEquals
+	// - StringLike
+	// - StringNotLike
 	//
 	// Supported applicable condition keys for each conditions.
 	// - s3:prefix
 	// - s3:max-keys
-	var conditionMatches = true
+	// - s3:aws-Referer
+
+	// The following loop evaluates the logical AND of all the
+	// conditions in the statement. Note: we can break out of the
+	// loop if and only if a condition evaluates to false.
 	for condition, conditionKeyVal := range statement.Conditions {
+		prefixConditon := conditionKeyVal["s3:prefix"]
+		maxKeyCondition := conditionKeyVal["s3:max-keys"]
 		if condition == "StringEquals" {
-			if !conditionKeyVal["s3:prefix"].Equals(conditions["prefix"]) {
-				conditionMatches = false
-				break
+			// If there is no condition with "s3:prefix" or "s3:max-keys" condition key
+			// then there is nothing to check condition against.
+			if !prefixConditon.IsEmpty() && !prefixConditon.Equals(conditions["prefix"]) {
+				return false
 			}
-			if !conditionKeyVal["s3:max-keys"].Equals(conditions["max-keys"]) {
-				conditionMatches = false
-				break
+			if !maxKeyCondition.IsEmpty() && !maxKeyCondition.Equals(conditions["max-keys"]) {
+				return false
 			}
 		} else if condition == "StringNotEquals" {
-			if !conditionKeyVal["s3:prefix"].Equals(conditions["prefix"]) {
-				conditionMatches = false
-				break
+			// If there is no condition with "s3:prefix" or "s3:max-keys" condition key
+			// then there is nothing to check condition against.
+			if !prefixConditon.IsEmpty() && prefixConditon.Equals(conditions["prefix"]) {
+				return false
 			}
-			if !conditionKeyVal["s3:max-keys"].Equals(conditions["max-keys"]) {
-				conditionMatches = false
-				break
+			if !maxKeyCondition.IsEmpty() && maxKeyCondition.Equals(conditions["max-keys"]) {
+				return false
+			}
+		} else if condition == "StringLike" {
+			awsReferers := conditionKeyVal["aws:Referer"]
+			// Skip empty condition, it is trivially satisfied.
+			if awsReferers.IsEmpty() {
+				continue
+			}
+			// wildcard match of referer in statement was not empty.
+			// StringLike has a match, i.e, condition evaluates to true.
+			refererFound := false
+			for referer := range conditions["referer"] {
+				if !awsReferers.FuncMatch(refererMatch, referer).IsEmpty() {
+					refererFound = true
+					break
+				}
+			}
+			// No matching referer found, so the condition is false.
+			if !refererFound {
+				return false
+			}
+		} else if condition == "StringNotLike" {
+			awsReferers := conditionKeyVal["aws:Referer"]
+			// Skip empty condition, it is trivially satisfied.
+			if awsReferers.IsEmpty() {
+				continue
+			}
+			// wildcard match of referer in statement was not empty.
+			// StringNotLike has a match, i.e, condition evaluates to false.
+			for referer := range conditions["referer"] {
+				if !awsReferers.FuncMatch(refererMatch, referer).IsEmpty() {
+					return false
+				}
 			}
 		}
 	}
-	return conditionMatches
+
+	return true
 }
 
 // PutBucketPolicyHandler - PUT Bucket policy

cmd/bucket-policy-handlers_test.go

@@ -913,7 +913,7 @@ func TestBucketPolicyConditionMatch(t *testing.T) {
 			statementCondition: getStatementWithCondition("StringNotEquals", "s3:prefix", "Asia/"),
 			condition:          getInnerMap("prefix", "Asia/"),
 
-			expectedMatch: true,
+			expectedMatch: false,
 		},
 		// Test case - 6.
 		// StringNotEquals condition doesn't match.
@@ -922,7 +922,7 @@ func TestBucketPolicyConditionMatch(t *testing.T) {
 			statementCondition: getStatementWithCondition("StringNotEquals", "s3:prefix", "Asia/"),
 			condition:          getInnerMap("prefix", "Africa/"),
 
-			expectedMatch: false,
+			expectedMatch: true,
 		},
 		// Test case - 7.
 		// StringNotEquals condition matches.
@@ -931,7 +931,7 @@ func TestBucketPolicyConditionMatch(t *testing.T) {
 			statementCondition: getStatementWithCondition("StringNotEquals", "s3:max-keys", "Asia/"),
 			condition:          getInnerMap("max-keys", "Asia/"),
 
-			expectedMatch: true,
+			expectedMatch: false,
 		},
 		// Test case - 8.
 		// StringNotEquals condition doesn't match.
@@ -940,7 +940,35 @@ func TestBucketPolicyConditionMatch(t *testing.T) {
 			statementCondition: getStatementWithCondition("StringNotEquals", "s3:max-keys", "Asia/"),
 			condition:          getInnerMap("max-keys", "Africa/"),
 
-			expectedMatch: false,
+			expectedMatch: true,
+		},
+		// Test case - 9.
+		// StringLike condition matches.
+		{
+			statementCondition: getStatementWithCondition("StringLike", "aws:Referer", "http://www.example.com/"),
+			condition:          getInnerMap("referer", "http://www.example.com/"),
+			expectedMatch:      true,
+		},
+		// Test case - 10.
+		// StringLike condition doesn't match.
+		{
+			statementCondition: getStatementWithCondition("StringLike", "aws:Referer", "http://www.example.com/"),
+			condition:          getInnerMap("referer", "www.somethingelse.com"),
+			expectedMatch:      false,
+		},
+		// Test case - 11.
+		// StringNotLike condition evaluates to false.
+		{
+			statementCondition: getStatementWithCondition("StringNotLike", "aws:Referer", "http://www.example.com/"),
+			condition:          getInnerMap("referer", "http://www.example.com/"),
+			expectedMatch:      false,
+		},
+		// Test case - 12.
+		// StringNotLike condition evaluates to true.
+		{
+			statementCondition: getStatementWithCondition("StringNotLike", "aws:Referer", "http://www.example.com/"),
+			condition:          getInnerMap("referer", "http://somethingelse.com/"),
+			expectedMatch:      true,
 		},
 	}
 
@@ -949,7 +977,8 @@ func TestBucketPolicyConditionMatch(t *testing.T) {
 			// call the function under test and assert the result with the expected result.
 			doesMatch := bucketPolicyConditionMatch(tc.condition, tc.statementCondition)
 			if tc.expectedMatch != doesMatch {
-				t.Errorf("Expected the match to be `%v`; got `%v`.", tc.expectedMatch, doesMatch)
+				t.Errorf("Expected the match to be `%v`; got `%v` - %v %v.",
+					tc.expectedMatch, doesMatch, tc.condition, tc.statementCondition)
 			}
 		})
 	}

cmd/bucket-policy-parser.go

@@ -29,17 +29,22 @@ import (
 	"github.com/minio/minio-go/pkg/set"
 )
 
+var conditionKeyActionMap = map[string]set.StringSet{
+	"s3:prefix":   set.CreateStringSet("s3:ListBucket"),
+	"s3:max-keys": set.CreateStringSet("s3:ListBucket"),
+}
+
 // supportedActionMap - lists all the actions supported by minio.
 var supportedActionMap = set.CreateStringSet("*", "s3:*", "s3:GetObject",
 	"s3:ListBucket", "s3:PutObject", "s3:GetBucketLocation", "s3:DeleteObject",
 	"s3:AbortMultipartUpload", "s3:ListBucketMultipartUploads", "s3:ListMultipartUploadParts")
 
 // supported Conditions type.
-var supportedConditionsType = set.CreateStringSet("StringEquals", "StringNotEquals")
+var supportedConditionsType = set.CreateStringSet("StringEquals", "StringNotEquals", "StringLike", "StringNotLike")
 
 // Validate s3:prefix, s3:max-keys are present if not
 // supported keys for the conditions.
-var supportedConditionsKey = set.CreateStringSet("s3:prefix", "s3:max-keys")
+var supportedConditionsKey = set.CreateStringSet("s3:prefix", "s3:max-keys", "aws:Referer")
 
 // supportedEffectMap - supported effects.
 var supportedEffectMap = set.CreateStringSet("Allow", "Deny")
@@ -106,12 +111,12 @@ func isValidResources(resources set.StringSet) (err error) {
 		return err
 	}
 	for resource := range resources {
-		if !strings.HasPrefix(resource, bucketARNPrefix) {
+		if !hasPrefix(resource, bucketARNPrefix) {
 			err = errors.New("Unsupported resource style found: ‘" + resource + "’, please validate your policy document")
 			return err
 		}
 		resourceSuffix := strings.SplitAfter(resource, bucketARNPrefix)[1]
-		if len(resourceSuffix) == 0 || strings.HasPrefix(resourceSuffix, "/") {
+		if len(resourceSuffix) == 0 || hasPrefix(resourceSuffix, "/") {
 			err = errors.New("Invalid resource style found: ‘" + resource + "’, please validate your policy document")
 			return err
 		}
@@ -178,11 +183,12 @@ func isValidPrincipals(principal interface{}) (err error) {
 	return nil
 }
 
-// isValidConditions - are valid conditions.
-func isValidConditions(conditions map[string]map[string]set.StringSet) (err error) {
-	// Verify conditions should be valid.
-	// Validate if stringEquals, stringNotEquals are present
-	// if not throw an error.
+// isValidConditions - returns nil if the given conditions valid and
+// corresponding error otherwise.
+func isValidConditions(actions set.StringSet, conditions map[string]map[string]set.StringSet) (err error) {
+	// Verify conditions should be valid. Validate if only
+	// supported condition keys are present and return error
+	// otherwise.
 	conditionKeyVal := make(map[string]set.StringSet)
 	for conditionType := range conditions {
 		if !supportedConditionsType.Contains(conditionType) {
@@ -194,6 +200,15 @@ func isValidConditions(conditions map[string]map[string]set.StringSet) (err erro
 				err = fmt.Errorf("Unsupported condition key '%s', please validate your policy document", conditionType)
 				return err
 			}
+
+			compatibleActions := conditionKeyActionMap[key]
+			if !compatibleActions.IsEmpty() &&
+				compatibleActions.Intersection(actions).IsEmpty() {
+				err = fmt.Errorf("Unsupported condition key %s for the given actions %s, "+
+					"please validate your policy document", key, actions)
+				return err
+			}
+
 			conditionVal, ok := conditionKeyVal[key]
 			if ok && !value.Intersection(conditionVal).IsEmpty() {
 				err = fmt.Errorf("Ambigious condition values for key '%s', please validate your policy document", key)
@@ -222,8 +237,8 @@ func resourcePrefix(resource string) string {
 }
 
 // checkBucketPolicyResources validates Resources in unmarshalled bucket policy structure.
-// First valation of Resources done for given set of Actions.
-// Later its validated for recursive Resources.
+// - Resources are validated against the given set of Actions.
+// -
 func checkBucketPolicyResources(bucket string, bucketPolicy *bucketPolicy) APIErrorCode {
 	// Validate statements for special actions and collect resources
 	// for others to validate nesting.
@@ -267,7 +282,7 @@ func checkBucketPolicyResources(bucket string, bucketPolicy *bucketPolicy) APIEr
 		// nesting. Reject such rules.
 		for _, otherResource := range resources {
 			// Common prefix reject such rules.
-			if strings.HasPrefix(otherResource, resource) {
+			if hasPrefix(otherResource, resource) {
 				return ErrPolicyNesting
 			}
 		}
@@ -317,7 +332,7 @@ func parseBucketPolicy(bucketPolicyReader io.Reader, policy *bucketPolicy) (err
 			return err
 		}
 		// Statement conditions should be valid.
-		if err := isValidConditions(statement.Conditions); err != nil {
+		if err := isValidConditions(statement.Actions, statement.Conditions); err != nil {
 			return err
 		}
 	}

cmd/bucket-policy-parser_test.go

@@ -22,6 +22,7 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/minio/minio-go/pkg/policy"
 	"github.com/minio/minio-go/pkg/set"
 )
 
@@ -342,6 +343,18 @@ func TestIsValidPrincipals(t *testing.T) {
 	}
 }
 
+// getEmptyConditionKeyMap - returns a function that generates a
+// condition key map for a given key.
+func getEmptyConditionKeyMap(conditionKey string) func() map[string]map[string]set.StringSet {
+	emptyConditonGenerator := func() map[string]map[string]set.StringSet {
+		emptyMap := make(map[string]set.StringSet)
+		conditions := make(map[string]map[string]set.StringSet)
+		conditions[conditionKey] = emptyMap
+		return conditions
+	}
+	return emptyConditonGenerator
+}
+
 // Tests validate policyStatement condition validator.
 func TestIsValidConditions(t *testing.T) {
 	// returns empty conditions map.
@@ -350,22 +363,17 @@ func TestIsValidConditions(t *testing.T) {
 	}
 
 	// returns map with the "StringEquals" set to empty map.
-	setEmptyStringEquals := func() map[string]map[string]set.StringSet {
-		emptyMap := make(map[string]set.StringSet)
-		conditions := make(map[string]map[string]set.StringSet)
-		conditions["StringEquals"] = emptyMap
-		return conditions
-
-	}
+	setEmptyStringEquals := getEmptyConditionKeyMap("StringEquals")
 
 	// returns map with the "StringNotEquals" set to empty map.
-	setEmptyStringNotEquals := func() map[string]map[string]set.StringSet {
-		emptyMap := make(map[string]set.StringSet)
-		conditions := make(map[string]map[string]set.StringSet)
-		conditions["StringNotEquals"] = emptyMap
-		return conditions
+	setEmptyStringNotEquals := getEmptyConditionKeyMap("StringNotEquals")
+
+	// returns map with the "StringLike" set to empty map.
+	setEmptyStringLike := getEmptyConditionKeyMap("StringLike")
+
+	// returns map with the "StringNotLike" set to empty map.
+	setEmptyStringNotLike := getEmptyConditionKeyMap("StringNotLike")
 
-	}
 	// Generate conditions.
 	generateConditions := func(key1, key2, value string) map[string]map[string]set.StringSet {
 		innerMap := make(map[string]set.StringSet)
@@ -377,11 +385,11 @@ func TestIsValidConditions(t *testing.T) {
 
 	// generate ambigious conditions.
 	generateAmbigiousConditions := func() map[string]map[string]set.StringSet {
-		innerMap := make(map[string]set.StringSet)
-		innerMap["s3:prefix"] = set.CreateStringSet("Asia/")
+		prefixMap := make(map[string]set.StringSet)
+		prefixMap["s3:prefix"] = set.CreateStringSet("Asia/")
 		conditions := make(map[string]map[string]set.StringSet)
-		conditions["StringEquals"] = innerMap
-		conditions["StringNotEquals"] = innerMap
+		conditions["StringEquals"] = prefixMap
+		conditions["StringNotEquals"] = prefixMap
 		return conditions
 	}
 
@@ -417,13 +425,20 @@ func TestIsValidConditions(t *testing.T) {
 		setEmptyConditions(),
 		setEmptyStringEquals(),
 		setEmptyStringNotEquals(),
+		setEmptyStringLike(),
+		setEmptyStringNotLike(),
 		generateConditions("StringEquals", "s3:prefix", "Asia/"),
 		generateConditions("StringEquals", "s3:max-keys", "100"),
 		generateConditions("StringNotEquals", "s3:prefix", "Asia/"),
 		generateConditions("StringNotEquals", "s3:max-keys", "100"),
 	}
 
+	getObjectActionSet := set.CreateStringSet("s3:GetObject")
+	roBucketActionSet := set.CreateStringSet(readOnlyBucketActions...)
+	maxKeysConditionErr := fmt.Errorf("Unsupported condition key %s for the given actions %s, "+
+		"please validate your policy document", "s3:max-keys", getObjectActionSet)
 	testCases := []struct {
+		inputActions   set.StringSet
 		inputCondition map[string]map[string]set.StringSet
 		// expected result.
 		expectedErr error
@@ -433,42 +448,44 @@ func TestIsValidConditions(t *testing.T) {
 		// Malformed conditions.
 		// Test case - 1.
 		// "StringValues" is an invalid type.
-		{testConditions[0], fmt.Errorf("Unsupported condition type 'StringValues', " +
+		{roBucketActionSet, testConditions[0], fmt.Errorf("Unsupported condition type 'StringValues', " +
 			"please validate your policy document"), false},
 		// Test case - 2.
 		// "s3:Object" is an invalid key.
-		{testConditions[1], fmt.Errorf("Unsupported condition key " +
+		{roBucketActionSet, testConditions[1], fmt.Errorf("Unsupported condition key " +
 			"'StringEquals', please validate your policy document"), false},
 		// Test case - 3.
 		// Test case with Ambigious conditions set.
-		{testConditions[2], fmt.Errorf("Ambigious condition values for key 's3:prefix', " +
+		{roBucketActionSet, testConditions[2], fmt.Errorf("Ambigious condition values for key 's3:prefix', " +
 			"please validate your policy document"), false},
 		// Test case - 4.
 		// Test case with valid and invalid condition types.
-		{testConditions[3], fmt.Errorf("Unsupported condition type 'InvalidType', " +
+		{roBucketActionSet, testConditions[3], fmt.Errorf("Unsupported condition type 'InvalidType', " +
 			"please validate your policy document"), false},
 		// Test case - 5.
 		// Test case with valid and invalid condition keys.
-		{testConditions[4], fmt.Errorf("Unsupported condition key 'StringEquals', " +
+		{roBucketActionSet, testConditions[4], fmt.Errorf("Unsupported condition key 'StringEquals', " +
 			"please validate your policy document"), false},
 		// Test cases with valid conditions.
 		// Test case - 6.
-		{testConditions[5], nil, true},
+		{roBucketActionSet, testConditions[5], nil, true},
 		// Test case - 7.
-		{testConditions[6], nil, true},
+		{roBucketActionSet, testConditions[6], nil, true},
 		// Test case - 8.
-		{testConditions[7], nil, true},
+		{roBucketActionSet, testConditions[7], nil, true},
 		// Test case - 9.
-		{testConditions[8], nil, true},
+		{roBucketActionSet, testConditions[8], nil, true},
 		// Test case - 10.
-		{testConditions[9], nil, true},
+		{roBucketActionSet, testConditions[9], nil, true},
 		// Test case - 11.
-		{testConditions[10], nil, true},
-		// Test case 10.
-		{testConditions[11], nil, true},
+		{roBucketActionSet, testConditions[10], nil, true},
+		// Test case - 12.
+		{roBucketActionSet, testConditions[11], nil, true},
+		// Test case - 13.
+		{getObjectActionSet, testConditions[11], maxKeysConditionErr, false},
 	}
 	for i, testCase := range testCases {
-		actualErr := isValidConditions(testCase.inputCondition)
+		actualErr := isValidConditions(testCase.inputActions, testCase.inputCondition)
 		if actualErr != nil && testCase.shouldPass {
 			t.Errorf("Test %d: Expected to pass, but failed with: <ERROR> %s", i+1, actualErr.Error())
 		}
@@ -709,3 +726,64 @@ func TestParseBucketPolicy(t *testing.T) {
 		}
 	}
 }
+
+func TestAWSRefererCondition(t *testing.T) {
+	resource := set.CreateStringSet([]string{
+		fmt.Sprintf("%s%s", bucketARNPrefix, "minio-bucket"+"/"+"Asia"+"*"),
+	}...)
+
+	conditionsKeyMap := make(policy.ConditionKeyMap)
+	conditionsKeyMap.Add("aws:Referer",
+		set.CreateStringSet("www.example.com",
+			"http://www.example.com"))
+
+	requestConditionKeyMap := make(map[string]set.StringSet)
+	requestConditionKeyMap["referer"] = set.CreateStringSet("www.example.com")
+
+	testCases := []struct {
+		effect       string
+		conditionKey string
+		match        bool
+	}{
+		{
+			effect:       "Allow",
+			conditionKey: "StringLike",
+			match:        true,
+		},
+		{
+			effect:       "Allow",
+			conditionKey: "StringNotLike",
+			match:        false,
+		},
+		{
+			effect:       "Deny",
+			conditionKey: "StringLike",
+			match:        true,
+		},
+		{
+			effect:       "Deny",
+			conditionKey: "StringNotLike",
+			match:        false,
+		},
+	}
+
+	for i, test := range testCases {
+		conditions := make(map[string]map[string]set.StringSet)
+		conditions[test.conditionKey] = conditionsKeyMap
+
+		allowStatement := policyStatement{
+			Sid:    "Testing AWS referer condition",
+			Effect: test.effect,
+			Principal: map[string]interface{}{
+				"AWS": "*",
+			},
+			Resources:  resource,
+			Conditions: conditions,
+		}
+
+		if result := bucketPolicyConditionMatch(requestConditionKeyMap, allowStatement); result != test.match {
+			t.Errorf("Test %d -  Expected conditons to evaluate to %v but got %v",
+				i+1, test.match, result)
+		}
+	}
+}

cmd/checkport.go

@@ -22,25 +22,13 @@ import (
 	"syscall"
 )
 
-// Make sure that none of the other processes are listening on the
-// specified port on any of the interfaces.
-//
-// On linux if a process is listening on 127.0.0.1:9000 then Listen()
-// on ":9000" fails with the error "port already in use".
-// However on Mac OSX Listen() on ":9000" falls back to the IPv6 address.
-// This causes confusion on Mac OSX that minio server is not reachable
-// on 127.0.0.1 even though minio server is running. So before we start
-// the minio server we make sure that the port is free on each tcp network.
-//
-// Port is string on purpose here.
-// https://github.com/golang/go/issues/16142#issuecomment-245912773
-//
-// "Keep in mind that ports in Go are strings: https://play.golang.org/p/zk2WEri_E9"
-//                 - @bradfitz
-func checkPortAvailability(portStr string) error {
+// checkPortAvailability - check if given port is already in use.
+// Note: The check method tries to listen on given port and closes it.
+// It is possible to have a disconnected client in this tiny window of time.
+func checkPortAvailability(port string) error {
 	network := [3]string{"tcp", "tcp4", "tcp6"}
 	for _, n := range network {
-		l, err := net.Listen(n, net.JoinHostPort("", portStr))
+		l, err := net.Listen(n, net.JoinHostPort("", port))
 		if err != nil {
 			if isAddrInUse(err) {
 				// Return error if another process is listening on the

cmd/commands.go

@@ -16,13 +16,16 @@
 
 package cmd
 
-import "github.com/minio/cli"
+import (
+	"github.com/minio/cli"
+	"github.com/minio/minio/pkg/trie"
+)
 
 // Collection of minio commands currently supported are.
 var commands = []cli.Command{}
 
 // Collection of minio commands currently supported in a trie tree.
-var commandsTree = newTrie()
+var commandsTree = trie.NewTrie()
 
 // registerCommand registers a cli command.
 func registerCommand(command cli.Command) {

cmd/config-migrate.go

@@ -855,7 +855,10 @@ func migrateV12ToV13() error {
 	}
 
 	// Copy over fields from V12 into V13 config struct
-	srvConfig := &serverConfigV13{}
+	srvConfig := &serverConfigV13{
+		Logger: &logger{},
+		Notify: &notifier{},
+	}
 	srvConfig.Version = "13"
 	srvConfig.Credential = cv12.Credential
 	srvConfig.Region = cv12.Region

cmd/config-migrate_test.go

@@ -50,7 +50,7 @@ func TestServerConfigMigrateV1(t *testing.T) {
 	}
 
 	// Initialize server config and check again if everything is fine
-	if _, err := initConfig(); err != nil {
+	if err := loadConfig(credential{}); err != nil {
 		t.Fatalf("Unable to initialize from updated config file %s", err)
 	}
 }
@@ -143,7 +143,7 @@ func TestServerConfigMigrateV2toV12(t *testing.T) {
 	}
 
 	// Initialize server config and check again if everything is fine
-	if _, err := initConfig(); err != nil {
+	if err := loadConfig(credential{}); err != nil {
 		t.Fatalf("Unable to initialize from updated config file %s", err)
 	}
 
@@ -160,11 +160,6 @@ func TestServerConfigMigrateV2toV12(t *testing.T) {
 	if serverConfig.Credential.SecretKey != secretKey {
 		t.Fatalf("Secret key lost during migration, expected: %v, found: %v", secretKey, serverConfig.Credential.SecretKey)
 	}
-
-	// Initialize server config and check again if everything is fine
-	if _, err := initConfig(); err != nil {
-		t.Fatalf("Unable to initialize from updated config file %s", err)
-	}
 }
 
 // Test if all migrate code returns error with corrupted config files

cmd/config-v13.go

@@ -36,75 +36,97 @@ type serverConfigV13 struct {
 	Region     string     `json:"region"`
 
 	// Additional error logging configuration.
-	Logger logger `json:"logger"`
+	Logger *logger `json:"logger"`
 
 	// Notification queue configuration.
-	Notify notifier `json:"notify"`
+	Notify *notifier `json:"notify"`
 }
 
-// initConfig - initialize server config and indicate if we are
-// creating a new file or we are just loading
-func initConfig() (bool, error) {
-	if !isConfigFileExists() {
-		// Initialize server config.
-		srvCfg := &serverConfigV13{}
-		srvCfg.Version = globalMinioConfigVersion
-		srvCfg.Region = globalMinioDefaultRegion
-		srvCfg.Credential = newCredential()
-
-		// Enable console logger by default on a fresh run.
-		srvCfg.Logger.Console = consoleLogger{
-			Enable: true,
-			Level:  "error",
-		}
-
-		// Make sure to initialize notification configs.
-		srvCfg.Notify.AMQP = make(map[string]amqpNotify)
-		srvCfg.Notify.AMQP["1"] = amqpNotify{}
-		srvCfg.Notify.ElasticSearch = make(map[string]elasticSearchNotify)
-		srvCfg.Notify.ElasticSearch["1"] = elasticSearchNotify{}
-		srvCfg.Notify.Redis = make(map[string]redisNotify)
-		srvCfg.Notify.Redis["1"] = redisNotify{}
-		srvCfg.Notify.NATS = make(map[string]natsNotify)
-		srvCfg.Notify.NATS["1"] = natsNotify{}
-		srvCfg.Notify.PostgreSQL = make(map[string]postgreSQLNotify)
-		srvCfg.Notify.PostgreSQL["1"] = postgreSQLNotify{}
-		srvCfg.Notify.Kafka = make(map[string]kafkaNotify)
-		srvCfg.Notify.Kafka["1"] = kafkaNotify{}
-		srvCfg.Notify.Webhook = make(map[string]webhookNotify)
-		srvCfg.Notify.Webhook["1"] = webhookNotify{}
-
-		// Create config path.
-		err := createConfigPath()
-		if err != nil {
-			return false, err
-		}
-
-		// hold the mutex lock before a new config is assigned.
-		// Save the new config globally.
-		// unlock the mutex.
-		serverConfigMu.Lock()
-		serverConfig = srvCfg
-		serverConfigMu.Unlock()
-
-		// Save config into file.
-		return true, serverConfig.Save()
+// newConfig - initialize a new server config, saves creds from env
+// if globalIsEnvCreds is set otherwise generates a new set of keys
+// and those are saved.
+func newConfig(envCreds credential) error {
+	// Initialize server config.
+	srvCfg := &serverConfigV13{
+		Logger: &logger{},
+		Notify: &notifier{},
 	}
+	srvCfg.Version = globalMinioConfigVersion
+	srvCfg.Region = globalMinioDefaultRegion
+
+	// If env is set for a fresh start, save them to config file.
+	if globalIsEnvCreds {
+		srvCfg.SetCredential(envCreds)
+	} else {
+		srvCfg.SetCredential(newCredential())
+	}
+
+	// Enable console logger by default on a fresh run.
+	srvCfg.Logger.Console = consoleLogger{
+		Enable: true,
+		Level:  "error",
+	}
+
+	// Make sure to initialize notification configs.
+	srvCfg.Notify.AMQP = make(map[string]amqpNotify)
+	srvCfg.Notify.AMQP["1"] = amqpNotify{}
+	srvCfg.Notify.ElasticSearch = make(map[string]elasticSearchNotify)
+	srvCfg.Notify.ElasticSearch["1"] = elasticSearchNotify{}
+	srvCfg.Notify.Redis = make(map[string]redisNotify)
+	srvCfg.Notify.Redis["1"] = redisNotify{}
+	srvCfg.Notify.NATS = make(map[string]natsNotify)
+	srvCfg.Notify.NATS["1"] = natsNotify{}
+	srvCfg.Notify.PostgreSQL = make(map[string]postgreSQLNotify)
+	srvCfg.Notify.PostgreSQL["1"] = postgreSQLNotify{}
+	srvCfg.Notify.Kafka = make(map[string]kafkaNotify)
+	srvCfg.Notify.Kafka["1"] = kafkaNotify{}
+	srvCfg.Notify.Webhook = make(map[string]webhookNotify)
+	srvCfg.Notify.Webhook["1"] = webhookNotify{}
+
+	// Create config path.
+	if err := createConfigPath(); err != nil {
+		return err
+	}
+
+	// hold the mutex lock before a new config is assigned.
+	// Save the new config globally.
+	// unlock the mutex.
+	serverConfigMu.Lock()
+	serverConfig = srvCfg
+	serverConfigMu.Unlock()
+
+	// Save config into file.
+	return serverConfig.Save()
+}
+
+// loadConfig - loads a new config from disk, overrides creds from env
+// if globalIsEnvCreds is set otherwise serves the creds from loaded
+// from the disk.
+func loadConfig(envCreds credential) error {
 	configFile, err := getConfigFile()
 	if err != nil {
-		return false, err
+		return err
 	}
+
 	if _, err = os.Stat(configFile); err != nil {
-		return false, err
+		return err
 	}
 	srvCfg := &serverConfigV13{}
 	srvCfg.Version = globalMinioConfigVersion
 	qc, err := quick.New(srvCfg)
 	if err != nil {
-		return false, err
+		return err
 	}
-	if err := qc.Load(configFile); err != nil {
-		return false, err
+
+	if err = qc.Load(configFile); err != nil {
+		return err
+	}
+
+	// If env is set override the credentials from config file.
+	if globalIsEnvCreds {
+		srvCfg.SetCredential(envCreds)
+	} else {
+		srvCfg.SetCredential(srvCfg.Credential)
 	}
 
 	// hold the mutex lock before a new config is assigned.
@@ -112,10 +134,10 @@ func initConfig() (bool, error) {
 	// Save the loaded config globally.
 	serverConfig = srvCfg
 	serverConfigMu.Unlock()
+
 	// Set the version properly after the unmarshalled json is loaded.
 	serverConfig.Version = globalMinioConfigVersion
-
-	return false, nil
+	return nil
 }
 
 // serverConfig server config.
@@ -129,193 +151,6 @@ func (s serverConfigV13) GetVersion() string {
 	return s.Version
 }
 
-/// Logger related.
-
-func (s *serverConfigV13) SetAMQPNotifyByID(accountID string, amqpn amqpNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.AMQP[accountID] = amqpn
-}
-
-func (s serverConfigV13) GetAMQP() map[string]amqpNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.AMQP
-}
-
-// GetAMQPNotify get current AMQP logger.
-func (s serverConfigV13) GetAMQPNotifyByID(accountID string) amqpNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.AMQP[accountID]
-}
-
-//
-func (s *serverConfigV13) SetNATSNotifyByID(accountID string, natsn natsNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.NATS[accountID] = natsn
-}
-
-func (s serverConfigV13) GetNATS() map[string]natsNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-	return s.Notify.NATS
-}
-
-// GetNATSNotify get current NATS logger.
-func (s serverConfigV13) GetNATSNotifyByID(accountID string) natsNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.NATS[accountID]
-}
-
-func (s *serverConfigV13) SetElasticSearchNotifyByID(accountID string, esNotify elasticSearchNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.ElasticSearch[accountID] = esNotify
-}
-
-func (s serverConfigV13) GetElasticSearch() map[string]elasticSearchNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.ElasticSearch
-}
-
-// GetElasticSearchNotify get current ElasicSearch logger.
-func (s serverConfigV13) GetElasticSearchNotifyByID(accountID string) elasticSearchNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.ElasticSearch[accountID]
-}
-
-func (s *serverConfigV13) SetRedisNotifyByID(accountID string, rNotify redisNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.Redis[accountID] = rNotify
-}
-
-func (s serverConfigV13) GetRedis() map[string]redisNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.Redis
-}
-
-func (s serverConfigV13) GetWebhook() map[string]webhookNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.Webhook
-}
-
-// GetWebhookNotifyByID get current Webhook logger.
-func (s serverConfigV13) GetWebhookNotifyByID(accountID string) webhookNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.Webhook[accountID]
-}
-
-func (s *serverConfigV13) SetWebhookNotifyByID(accountID string, pgn webhookNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.Webhook[accountID] = pgn
-}
-
-// GetRedisNotify get current Redis logger.
-func (s serverConfigV13) GetRedisNotifyByID(accountID string) redisNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.Redis[accountID]
-}
-
-func (s *serverConfigV13) SetPostgreSQLNotifyByID(accountID string, pgn postgreSQLNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.PostgreSQL[accountID] = pgn
-}
-
-func (s serverConfigV13) GetPostgreSQL() map[string]postgreSQLNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.PostgreSQL
-}
-
-func (s serverConfigV13) GetPostgreSQLNotifyByID(accountID string) postgreSQLNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.PostgreSQL[accountID]
-}
-
-// Kafka related functions
-func (s *serverConfigV13) SetKafkaNotifyByID(accountID string, kn kafkaNotify) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Notify.Kafka[accountID] = kn
-}
-
-func (s serverConfigV13) GetKafka() map[string]kafkaNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.Kafka
-}
-
-func (s serverConfigV13) GetKafkaNotifyByID(accountID string) kafkaNotify {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Notify.Kafka[accountID]
-}
-
-// SetFileLogger set new file logger.
-func (s *serverConfigV13) SetFileLogger(flogger fileLogger) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Logger.File = flogger
-}
-
-// GetFileLogger get current file logger.
-func (s serverConfigV13) GetFileLogger() fileLogger {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Logger.File
-}
-
-// SetConsoleLogger set new console logger.
-func (s *serverConfigV13) SetConsoleLogger(clogger consoleLogger) {
-	serverConfigMu.Lock()
-	defer serverConfigMu.Unlock()
-
-	s.Logger.Console = clogger
-}
-
-// GetConsoleLogger get current console logger.
-func (s serverConfigV13) GetConsoleLogger() consoleLogger {
-	serverConfigMu.RLock()
-	defer serverConfigMu.RUnlock()
-
-	return s.Logger.Console
-}
-
 // SetRegion set new region.
 func (s *serverConfigV13) SetRegion(region string) {
 	serverConfigMu.Lock()
@@ -337,7 +172,8 @@ func (s *serverConfigV13) SetCredential(creds credential) {
 	serverConfigMu.Lock()
 	defer serverConfigMu.Unlock()
 
-	s.Credential = creds
+	// Set updated credential.
+	s.Credential = newCredentialWithKeys(creds.AccessKey, creds.SecretKey)
 }
 
 // GetCredentials get current credentials.

cmd/config-v13_test.go

@@ -40,57 +40,65 @@ func TestServerConfig(t *testing.T) {
 	}
 
 	// Set new amqp notification id.
-	serverConfig.SetAMQPNotifyByID("2", amqpNotify{})
-	savedNotifyCfg1 := serverConfig.GetAMQPNotifyByID("2")
+	serverConfig.Notify.SetAMQPByID("2", amqpNotify{})
+	savedNotifyCfg1 := serverConfig.Notify.GetAMQPByID("2")
 	if !reflect.DeepEqual(savedNotifyCfg1, amqpNotify{}) {
 		t.Errorf("Expecting AMQP config %#v found %#v", amqpNotify{}, savedNotifyCfg1)
 	}
 
 	// Set new elastic search notification id.
-	serverConfig.SetElasticSearchNotifyByID("2", elasticSearchNotify{})
-	savedNotifyCfg2 := serverConfig.GetElasticSearchNotifyByID("2")
+	serverConfig.Notify.SetElasticSearchByID("2", elasticSearchNotify{})
+	savedNotifyCfg2 := serverConfig.Notify.GetElasticSearchByID("2")
 	if !reflect.DeepEqual(savedNotifyCfg2, elasticSearchNotify{}) {
 		t.Errorf("Expecting Elasticsearch config %#v found %#v", elasticSearchNotify{}, savedNotifyCfg2)
 	}
 
 	// Set new redis notification id.
-	serverConfig.SetRedisNotifyByID("2", redisNotify{})
-	savedNotifyCfg3 := serverConfig.GetRedisNotifyByID("2")
+	serverConfig.Notify.SetRedisByID("2", redisNotify{})
+	savedNotifyCfg3 := serverConfig.Notify.GetRedisByID("2")
 	if !reflect.DeepEqual(savedNotifyCfg3, redisNotify{}) {
 		t.Errorf("Expecting Redis config %#v found %#v", redisNotify{}, savedNotifyCfg3)
 	}
 
 	// Set new kafka notification id.
-	serverConfig.SetKafkaNotifyByID("2", kafkaNotify{})
-	savedNotifyCfg4 := serverConfig.GetKafkaNotifyByID("2")
+	serverConfig.Notify.SetKafkaByID("2", kafkaNotify{})
+	savedNotifyCfg4 := serverConfig.Notify.GetKafkaByID("2")
 	if !reflect.DeepEqual(savedNotifyCfg4, kafkaNotify{}) {
 		t.Errorf("Expecting Kafka config %#v found %#v", kafkaNotify{}, savedNotifyCfg4)
 	}
 
 	// Set new Webhook notification id.
-	serverConfig.SetWebhookNotifyByID("2", webhookNotify{})
-	savedNotifyCfg5 := serverConfig.GetWebhookNotifyByID("2")
+	serverConfig.Notify.SetWebhookByID("2", webhookNotify{})
+	savedNotifyCfg5 := serverConfig.Notify.GetWebhookByID("2")
 	if !reflect.DeepEqual(savedNotifyCfg5, webhookNotify{}) {
 		t.Errorf("Expecting Webhook config %#v found %#v", webhookNotify{}, savedNotifyCfg3)
 	}
 
 	// Set new console logger.
-	serverConfig.SetConsoleLogger(consoleLogger{
+	serverConfig.Logger.SetConsole(consoleLogger{
 		Enable: true,
 	})
-	consoleCfg := serverConfig.GetConsoleLogger()
+	consoleCfg := serverConfig.Logger.GetConsole()
 	if !reflect.DeepEqual(consoleCfg, consoleLogger{Enable: true}) {
 		t.Errorf("Expecting console logger config %#v found %#v", consoleLogger{Enable: true}, consoleCfg)
 	}
+	// Set new console logger.
+	serverConfig.Logger.SetConsole(consoleLogger{
+		Enable: false,
+	})
 
 	// Set new file logger.
-	serverConfig.SetFileLogger(fileLogger{
+	serverConfig.Logger.SetFile(fileLogger{
 		Enable: true,
 	})
-	fileCfg := serverConfig.GetFileLogger()
+	fileCfg := serverConfig.Logger.GetFile()
 	if !reflect.DeepEqual(fileCfg, fileLogger{Enable: true}) {
 		t.Errorf("Expecting file logger config %#v found %#v", fileLogger{Enable: true}, consoleCfg)
 	}
+	// Set new file logger.
+	serverConfig.Logger.SetFile(fileLogger{
+		Enable: false,
+	})
 
 	// Match version.
 	if serverConfig.GetVersion() != globalMinioConfigVersion {
@@ -106,7 +114,7 @@ func TestServerConfig(t *testing.T) {
 	setGlobalConfigPath(rootPath)
 
 	// Initialize server config.
-	if _, err := initConfig(); err != nil {
+	if err := loadConfig(credential{}); err != nil {
 		t.Fatalf("Unable to initialize from updated config file %s", err)
 	}
 }

cmd/credential.go

@@ -19,6 +19,11 @@ package cmd
 import (
 	"crypto/rand"
 	"encoding/base64"
+	"os"
+
+	"github.com/minio/mc/pkg/console"
+
+	"golang.org/x/crypto/bcrypt"
 )
 
 const (
@@ -34,7 +39,7 @@ const (
 func mustGetAccessKey() string {
 	keyBytes := make([]byte, accessKeyMaxLen)
 	if _, err := rand.Read(keyBytes); err != nil {
-		panic(err)
+		console.Fatalf("Unable to generate access key. Err: %s.\n", err)
 	}
 
 	for i := 0; i < accessKeyMaxLen; i++ {
@@ -47,7 +52,7 @@ func mustGetAccessKey() string {
 func mustGetSecretKey() string {
 	keyBytes := make([]byte, secretKeyMaxLen)
 	if _, err := rand.Read(keyBytes); err != nil {
-		panic(err)
+		console.Fatalf("Unable to generate secret key. Err: %s.\n", err)
 	}
 
 	return string([]byte(base64.StdEncoding.EncodeToString(keyBytes))[:secretKeyMaxLen])
@@ -65,22 +70,70 @@ func isSecretKeyValid(secretKey string) bool {
 
 // credential container for access and secret keys.
 type credential struct {
-	AccessKey string `json:"accessKey"`
-	SecretKey string `json:"secretKey"`
+	AccessKey     string `json:"accessKey,omitempty"`
+	SecretKey     string `json:"secretKey,omitempty"`
+	secretKeyHash []byte
 }
 
+// Generate a bcrypt hashed key for input secret key.
+func mustGetHashedSecretKey(secretKey string) []byte {
+	hashedSecretKey, err := bcrypt.GenerateFromPassword([]byte(secretKey), bcrypt.DefaultCost)
+	if err != nil {
+		console.Fatalf("Unable to generate secret hash for secret key. Err: %s.\n", err)
+	}
+	return hashedSecretKey
+}
+
+// Initialize a new credential object
 func newCredential() credential {
-	return credential{mustGetAccessKey(), mustGetSecretKey()}
+	return newCredentialWithKeys(mustGetAccessKey(), mustGetSecretKey())
 }
 
-func getCredential(accessKey, secretKey string) (credential, error) {
+func newCredentialWithKeys(accessKey, secretKey string) credential {
+	secretHash := mustGetHashedSecretKey(secretKey)
+	return credential{accessKey, secretKey, secretHash}
+}
+
+// Validate incoming auth keys.
+func validateAuthKeys(accessKey, secretKey string) error {
+	// Validate the env values before proceeding.
 	if !isAccessKeyValid(accessKey) {
-		return credential{}, errInvalidAccessKeyLength
+		return errInvalidAccessKeyLength
 	}
-
 	if !isSecretKeyValid(secretKey) {
-		return credential{}, errInvalidSecretKeyLength
+		return errInvalidSecretKeyLength
+	}
+	return nil
+}
+
+// Variant of getCredentialFromEnv but upon error fails right here.
+func mustGetCredentialFromEnv() credential {
+	creds, err := getCredentialFromEnv()
+	if err != nil {
+		console.Fatalf("Unable to load credentials from environment. Err: %s.\n", err)
+	}
+	return creds
+}
+
+// Converts accessKey and secretKeys into credential object which
+// contains bcrypt secret key hash for future validation.
+func getCredentialFromEnv() (credential, error) {
+	// Fetch access keys from environment variables and update the config.
+	accessKey := os.Getenv("MINIO_ACCESS_KEY")
+	secretKey := os.Getenv("MINIO_SECRET_KEY")
+
+	// Envs are set globally.
+	globalIsEnvCreds = accessKey != "" && secretKey != ""
+
+	if globalIsEnvCreds {
+		// Validate the env values before proceeding.
+		if err := validateAuthKeys(accessKey, secretKey); err != nil {
+			return credential{}, err
+		}
+
+		// Return credential object.
+		return newCredentialWithKeys(accessKey, secretKey), nil
 	}
 
-	return credential{accessKey, secretKey}, nil
+	return credential{}, nil
 }

cmd/erasure-createfile.go

@@ -28,7 +28,7 @@ import (
 // erasureCreateFile - writes an entire stream by erasure coding to
 // all the disks, writes also calculate individual block's checksum
 // for future bit-rot protection.
-func erasureCreateFile(disks []StorageAPI, volume, path string, reader io.Reader, blockSize int64, dataBlocks int, parityBlocks int, algo string, writeQuorum int) (bytesWritten int64, checkSums []string, err error) {
+func erasureCreateFile(disks []StorageAPI, volume, path string, reader io.Reader, allowEmpty bool, blockSize int64, dataBlocks int, parityBlocks int, algo string, writeQuorum int) (bytesWritten int64, checkSums []string, err error) {
 	// Allocated blockSized buffer for reading from incoming stream.
 	buf := make([]byte, blockSize)
 
@@ -47,7 +47,7 @@ func erasureCreateFile(disks []StorageAPI, volume, path string, reader io.Reader
 			// We have reached EOF on the first byte read, io.Reader
 			// must be 0bytes, we don't need to erasure code
 			// data. Will create a 0byte file instead.
-			if bytesWritten == 0 {
+			if bytesWritten == 0 && allowEmpty {
 				blocks = make([][]byte, len(disks))
 				rErr = appendFile(disks, volume, path, blocks, hashWriters, writeQuorum)
 				if rErr != nil {
@@ -137,9 +137,5 @@ func appendFile(disks []StorageAPI, volume, path string, enBlocks [][]byte, hash
 	// Wait for all the appends to finish.
 	wg.Wait()
 
-	// Do we have write quorum?.
-	if !isDiskQuorum(wErrs, writeQuorum) {
-		return traceError(errXLWriteQuorum)
-	}
 	return reduceWriteQuorumErrs(wErrs, objectOpIgnoredErrs, writeQuorum)
 }

cmd/erasure-createfile_test.go

@@ -56,7 +56,7 @@ func TestErasureCreateFile(t *testing.T) {
 		t.Fatal(err)
 	}
 	// Test when all disks are up.
-	size, _, err := erasureCreateFile(disks, "testbucket", "testobject1", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, _, err := erasureCreateFile(disks, "testbucket", "testobject1", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -69,7 +69,7 @@ func TestErasureCreateFile(t *testing.T) {
 	disks[5] = AppendDiskDown{disks[5].(*posix)}
 
 	// Test when two disks are down.
-	size, _, err = erasureCreateFile(disks, "testbucket", "testobject2", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, _, err = erasureCreateFile(disks, "testbucket", "testobject2", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -83,7 +83,7 @@ func TestErasureCreateFile(t *testing.T) {
 	disks[8] = AppendDiskDown{disks[8].(*posix)}
 	disks[9] = AppendDiskDown{disks[9].(*posix)}
 
-	size, _, err = erasureCreateFile(disks, "testbucket", "testobject3", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, _, err = erasureCreateFile(disks, "testbucket", "testobject3", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -93,7 +93,7 @@ func TestErasureCreateFile(t *testing.T) {
 
 	// 1 more disk down. 7 disk down in total. Should return quorum error.
 	disks[10] = AppendDiskDown{disks[10].(*posix)}
-	_, _, err = erasureCreateFile(disks, "testbucket", "testobject4", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	_, _, err = erasureCreateFile(disks, "testbucket", "testobject4", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if errorCause(err) != errXLWriteQuorum {
 		t.Errorf("erasureCreateFile return value: expected errXLWriteQuorum, got %s", err)
 	}

cmd/erasure-healfile_test.go

@@ -48,7 +48,7 @@ func TestErasureHealFile(t *testing.T) {
 		t.Fatal(err)
 	}
 	// Create a test file.
-	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject1", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject1", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/erasure-readfile_test.go

@@ -271,7 +271,7 @@ func TestErasureReadFileDiskFail(t *testing.T) {
 	}
 
 	// Create a test file to read from.
-	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -354,7 +354,7 @@ func TestErasureReadFileOffsetLength(t *testing.T) {
 	}
 
 	// Create a test file to read from.
-	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -433,7 +433,7 @@ func TestErasureReadFileRandomOffsetLength(t *testing.T) {
 	iterations := 10000
 
 	// Create a test file to read from.
-	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject", bytes.NewReader(data), blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
+	size, checkSums, err := erasureCreateFile(disks, "testbucket", "testobject", bytes.NewReader(data), true, blockSize, dataBlocks, parityBlocks, bitRotAlgo, dataBlocks+1)
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/erasure-utils.go

@@ -24,8 +24,8 @@ import (
 	"sync"
 
 	"github.com/klauspost/reedsolomon"
-	"github.com/minio/blake2b-simd"
 	"github.com/minio/sha256-simd"
+	"golang.org/x/crypto/blake2b"
 )
 
 // newHashWriters - inititialize a slice of hashes for the disk count.
@@ -48,14 +48,14 @@ func newHash(algo string) (h hash.Hash) {
 		// ignore the error, because New512 without a key never fails
 		// New512 only returns a non-nil error, if the length of the passed
 		// key > 64 bytes - but we use blake2b as hash function (no key)
-		h = blake2b.New512()
+		h, _ = blake2b.New512(nil)
 	// Add new hashes here.
 	default:
 		// Default to blake2b.
 		// ignore the error, because New512 without a key never fails
 		// New512 only returns a non-nil error, if the length of the passed
 		// key > 64 bytes - but we use blake2b as hash function (no key)
-		h = blake2b.New512()
+		h, _ = blake2b.New512(nil)
 	}
 	return h
 }

cmd/event-notifier.go

@@ -162,9 +162,22 @@ func newNotificationEvent(event eventData) NotificationEvent {
 	return nEvent
 }
 
-// Fetch the external target. No locking needed here since this map is
-// never written after initial startup.
+// Fetch all external targets. This returns a copy of the current map of
+// external notification targets.
+func (en eventNotifier) GetAllExternalTargets() map[string]*logrus.Logger {
+	en.external.rwMutex.RLock()
+	defer en.external.rwMutex.RUnlock()
+	targetsCopy := make(map[string]*logrus.Logger)
+	for k, v := range en.external.targets {
+		targetsCopy[k] = v
+	}
+	return targetsCopy
+}
+
+// Fetch the external target.
 func (en eventNotifier) GetExternalTarget(queueARN string) *logrus.Logger {
+	en.external.rwMutex.RLock()
+	defer en.external.rwMutex.RUnlock()
 	return en.external.targets[queueARN]
 }
 
@@ -531,7 +544,7 @@ func loadAllBucketNotifications(objAPI ObjectLayer) (map[string]*notificationCon
 func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 	queueTargets := make(map[string]*logrus.Logger)
 	// Load all amqp targets, initialize their respective loggers.
-	for accountID, amqpN := range serverConfig.GetAMQP() {
+	for accountID, amqpN := range serverConfig.Notify.GetAMQP() {
 		if !amqpN.Enable {
 			continue
 		}
@@ -558,7 +571,7 @@ func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 		queueTargets[queueARN] = amqpLog
 	}
 	// Load all nats targets, initialize their respective loggers.
-	for accountID, natsN := range serverConfig.GetNATS() {
+	for accountID, natsN := range serverConfig.Notify.GetNATS() {
 		if !natsN.Enable {
 			continue
 		}
@@ -586,7 +599,7 @@ func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 	}
 
 	// Load redis targets, initialize their respective loggers.
-	for accountID, redisN := range serverConfig.GetRedis() {
+	for accountID, redisN := range serverConfig.Notify.GetRedis() {
 		if !redisN.Enable {
 			continue
 		}
@@ -614,7 +627,7 @@ func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 	}
 
 	// Load Webhook targets, initialize their respective loggers.
-	for accountID, webhookN := range serverConfig.GetWebhook() {
+	for accountID, webhookN := range serverConfig.Notify.GetWebhook() {
 		if !webhookN.Enable {
 			continue
 		}
@@ -635,7 +648,7 @@ func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 	}
 
 	// Load elastic targets, initialize their respective loggers.
-	for accountID, elasticN := range serverConfig.GetElasticSearch() {
+	for accountID, elasticN := range serverConfig.Notify.GetElasticSearch() {
 		if !elasticN.Enable {
 			continue
 		}
@@ -661,7 +674,7 @@ func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 	}
 
 	// Load PostgreSQL targets, initialize their respective loggers.
-	for accountID, pgN := range serverConfig.GetPostgreSQL() {
+	for accountID, pgN := range serverConfig.Notify.GetPostgreSQL() {
 		if !pgN.Enable {
 			continue
 		}
@@ -686,7 +699,7 @@ func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
 		queueTargets[queueARN] = pgLog
 	}
 	// Load Kafka targets, initialize their respective loggers.
-	for accountID, kafkaN := range serverConfig.GetKafka() {
+	for accountID, kafkaN := range serverConfig.Notify.GetKafka() {
 		if !kafkaN.Enable {
 			continue
 		}

cmd/event-notifier_test.go

@@ -106,7 +106,7 @@ func TestInitEventNotifierWithPostgreSQL(t *testing.T) {
 		t.Fatal("Unable to initialize FS backend.", err)
 	}
 
-	serverConfig.SetPostgreSQLNotifyByID("1", postgreSQLNotify{Enable: true})
+	serverConfig.Notify.SetPostgreSQLByID("1", postgreSQLNotify{Enable: true})
 	if err := initEventNotifier(fs); err == nil {
 		t.Fatal("PostgreSQL config didn't fail.")
 	}
@@ -137,7 +137,7 @@ func TestInitEventNotifierWithNATS(t *testing.T) {
 		t.Fatal("Unable to initialize FS backend.", err)
 	}
 
-	serverConfig.SetNATSNotifyByID("1", natsNotify{Enable: true})
+	serverConfig.Notify.SetNATSByID("1", natsNotify{Enable: true})
 	if err := initEventNotifier(fs); err == nil {
 		t.Fatal("NATS config didn't fail.")
 	}
@@ -168,7 +168,7 @@ func TestInitEventNotifierWithWebHook(t *testing.T) {
 		t.Fatal("Unable to initialize FS backend.", err)
 	}
 
-	serverConfig.SetWebhookNotifyByID("1", webhookNotify{Enable: true})
+	serverConfig.Notify.SetWebhookByID("1", webhookNotify{Enable: true})
 	if err := initEventNotifier(fs); err == nil {
 		t.Fatal("WebHook config didn't fail.")
 	}
@@ -199,7 +199,7 @@ func TestInitEventNotifierWithAMQP(t *testing.T) {
 		t.Fatal("Unable to initialize FS backend.", err)
 	}
 
-	serverConfig.SetAMQPNotifyByID("1", amqpNotify{Enable: true})
+	serverConfig.Notify.SetAMQPByID("1", amqpNotify{Enable: true})
 	if err := initEventNotifier(fs); err == nil {
 		t.Fatal("AMQP config didn't fail.")
 	}
@@ -230,7 +230,7 @@ func TestInitEventNotifierWithElasticSearch(t *testing.T) {
 		t.Fatal("Unable to initialize FS backend.", err)
 	}
 
-	serverConfig.SetElasticSearchNotifyByID("1", elasticSearchNotify{Enable: true})
+	serverConfig.Notify.SetElasticSearchByID("1", elasticSearchNotify{Enable: true})
 	if err := initEventNotifier(fs); err == nil {
 		t.Fatal("ElasticSearch config didn't fail.")
 	}
@@ -261,7 +261,7 @@ func TestInitEventNotifierWithRedis(t *testing.T) {
 		t.Fatal("Unable to initialize FS backend.", err)
 	}
 
-	serverConfig.SetRedisNotifyByID("1", redisNotify{Enable: true})
+	serverConfig.Notify.SetRedisByID("1", redisNotify{Enable: true})
 	if err := initEventNotifier(fs); err == nil {
 		t.Fatal("Redis config didn't fail.")
 	}

cmd/fs-v1-helpers.go

@@ -27,20 +27,20 @@ import (
 // windows automatically.
 func fsRemoveFile(filePath string) (err error) {
 	if filePath == "" {
-		return errInvalidArgument
+		return traceError(errInvalidArgument)
 	}
 
 	if err = checkPathLength(filePath); err != nil {
-		return err
+		return traceError(err)
 	}
 
 	if err = os.Remove(preparePath(filePath)); err != nil {
 		if os.IsNotExist(err) {
-			return errFileNotFound
+			return traceError(errFileNotFound)
 		} else if os.IsPermission(err) {
-			return errFileAccessDenied
+			return traceError(errFileAccessDenied)
 		}
-		return err
+		return traceError(err)
 	}
 
 	return nil
@@ -50,43 +50,44 @@ func fsRemoveFile(filePath string) (err error) {
 // long paths for windows automatically.
 func fsRemoveAll(dirPath string) (err error) {
 	if dirPath == "" {
-		return errInvalidArgument
+		return traceError(errInvalidArgument)
 	}
 
 	if err = checkPathLength(dirPath); err != nil {
-		return err
+		return traceError(err)
 	}
 
 	if err = removeAll(dirPath); err != nil {
 		if os.IsPermission(err) {
-			return errVolumeAccessDenied
+			return traceError(errVolumeAccessDenied)
 		}
+		return traceError(err)
 	}
 
-	return err
-
+	return nil
 }
 
 // Removes a directory only if its empty, handles long
 // paths for windows automatically.
 func fsRemoveDir(dirPath string) (err error) {
 	if dirPath == "" {
-		return errInvalidArgument
+		return traceError(errInvalidArgument)
 	}
 
 	if err = checkPathLength(dirPath); err != nil {
-		return err
+		return traceError(err)
 	}
 
 	if err = os.Remove(preparePath(dirPath)); err != nil {
 		if os.IsNotExist(err) {
-			return errVolumeNotFound
+			return traceError(errVolumeNotFound)
 		} else if isSysErrNotEmpty(err) {
-			return errVolumeNotEmpty
+			return traceError(errVolumeNotEmpty)
 		}
+		return traceError(err)
 	}
 
-	return err
+	return nil
 }
 
 // Creates a new directory, parent dir should exist
@@ -95,26 +96,27 @@ func fsRemoveDir(dirPath string) (err error) {
 // are handled automatically.
 func fsMkdir(dirPath string) (err error) {
 	if dirPath == "" {
-		return errInvalidArgument
+		return traceError(errInvalidArgument)
 	}
 
 	if err = checkPathLength(dirPath); err != nil {
-		return err
+		return traceError(err)
 	}
 
 	if err = os.Mkdir(preparePath(dirPath), 0777); err != nil {
 		if os.IsExist(err) {
-			return errVolumeExists
+			return traceError(errVolumeExists)
 		} else if os.IsPermission(err) {
-			return errDiskAccessDenied
+			return traceError(errDiskAccessDenied)
 		} else if isSysErrNotDir(err) {
 			// File path cannot be verified since
 			// one of the parents is a file.
-			return errDiskAccessDenied
+			return traceError(errDiskAccessDenied)
 		} else if isSysErrPathNotFound(err) {
 			// Add specific case for windows.
-			return errDiskAccessDenied
+			return traceError(errDiskAccessDenied)
 		}
+		return traceError(err)
 	}
 
 	return nil
@@ -124,24 +126,24 @@ func fsMkdir(dirPath string) (err error) {
 // attributes upon success.
 func fsStatDir(statDir string) (os.FileInfo, error) {
 	if statDir == "" {
-		return nil, errInvalidArgument
+		return nil, traceError(errInvalidArgument)
 	}
 	if err := checkPathLength(statDir); err != nil {
-		return nil, err
+		return nil, traceError(err)
 	}
 
 	fi, err := os.Stat(preparePath(statDir))
 	if err != nil {
 		if os.IsNotExist(err) {
-			return nil, errVolumeNotFound
+			return nil, traceError(errVolumeNotFound)
 		} else if os.IsPermission(err) {
-			return nil, errVolumeAccessDenied
+			return nil, traceError(errVolumeAccessDenied)
 		}
-		return nil, err
+		return nil, traceError(err)
 	}
 
 	if !fi.IsDir() {
-		return nil, errVolumeAccessDenied
+		return nil, traceError(errVolumeAccessDenied)
 	}
 
 	return fi, nil
@@ -150,28 +152,28 @@ func fsStatDir(statDir string) (os.FileInfo, error) {
 // Lookup if file exists, returns file attributes upon success
 func fsStatFile(statFile string) (os.FileInfo, error) {
 	if statFile == "" {
-		return nil, errInvalidArgument
+		return nil, traceError(errInvalidArgument)
 	}
 
 	if err := checkPathLength(statFile); err != nil {
-		return nil, err
+		return nil, traceError(err)
 	}
 
 	fi, err := os.Stat(preparePath(statFile))
 	if err != nil {
 		if os.IsNotExist(err) {
-			return nil, errFileNotFound
+			return nil, traceError(errFileNotFound)
 		} else if os.IsPermission(err) {
-			return nil, errFileAccessDenied
+			return nil, traceError(errFileAccessDenied)
 		} else if isSysErrNotDir(err) {
-			return nil, errFileAccessDenied
+			return nil, traceError(errFileAccessDenied)
 		} else if isSysErrPathNotFound(err) {
-			return nil, errFileNotFound
+			return nil, traceError(errFileNotFound)
 		}
-		return nil, err
+		return nil, traceError(err)
 	}
 	if fi.IsDir() {
-		return nil, errFileNotFound
+		return nil, traceError(errFileNotFound)
 	}
 	return fi, nil
 }
@@ -180,44 +182,44 @@ func fsStatFile(statFile string) (os.FileInfo, error) {
 // a readable stream and the size of the readable stream.
 func fsOpenFile(readPath string, offset int64) (io.ReadCloser, int64, error) {
 	if readPath == "" || offset < 0 {
-		return nil, 0, errInvalidArgument
+		return nil, 0, traceError(errInvalidArgument)
 	}
 	if err := checkPathLength(readPath); err != nil {
-		return nil, 0, err
+		return nil, 0, traceError(err)
 	}
 
 	fr, err := os.Open(preparePath(readPath))
 	if err != nil {
 		if os.IsNotExist(err) {
-			return nil, 0, errFileNotFound
+			return nil, 0, traceError(errFileNotFound)
 		} else if os.IsPermission(err) {
-			return nil, 0, errFileAccessDenied
+			return nil, 0, traceError(errFileAccessDenied)
 		} else if isSysErrNotDir(err) {
 			// File path cannot be verified since one of the parents is a file.
-			return nil, 0, errFileAccessDenied
+			return nil, 0, traceError(errFileAccessDenied)
 		} else if isSysErrPathNotFound(err) {
 			// Add specific case for windows.
-			return nil, 0, errFileNotFound
+			return nil, 0, traceError(errFileNotFound)
 		}
-		return nil, 0, err
+		return nil, 0, traceError(err)
 	}
 
 	// Stat to get the size of the file at path.
 	st, err := fr.Stat()
 	if err != nil {
-		return nil, 0, err
+		return nil, 0, traceError(err)
 	}
 
 	// Verify if its not a regular file, since subsequent Seek is undefined.
 	if !st.Mode().IsRegular() {
-		return nil, 0, errIsNotRegular
+		return nil, 0, traceError(errIsNotRegular)
 	}
 
 	// Seek to the requested offset.
 	if offset > 0 {
 		_, err = fr.Seek(offset, os.SEEK_SET)
 		if err != nil {
-			return nil, 0, err
+			return nil, 0, traceError(err)
 		}
 	}
 
@@ -228,22 +230,22 @@ func fsOpenFile(readPath string, offset int64) (io.ReadCloser, int64, error) {
 // Creates a file and copies data from incoming reader. Staging buffer is used by io.CopyBuffer.
 func fsCreateFile(tempObjPath string, reader io.Reader, buf []byte, fallocSize int64) (int64, error) {
 	if tempObjPath == "" || reader == nil || buf == nil {
-		return 0, errInvalidArgument
+		return 0, traceError(errInvalidArgument)
 	}
 
 	if err := checkPathLength(tempObjPath); err != nil {
-		return 0, err
+		return 0, traceError(err)
 	}
 
 	if err := mkdirAll(pathutil.Dir(tempObjPath), 0777); err != nil {
-		return 0, err
+		return 0, traceError(err)
 	}
 
 	writer, err := os.OpenFile(preparePath(tempObjPath), os.O_CREATE|os.O_WRONLY, 0666)
 	if err != nil {
 		// File path cannot be verified since one of the parents is a file.
 		if isSysErrNotDir(err) {
-			return 0, errFileAccessDenied
+			return 0, traceError(errFileAccessDenied)
 		}
 		return 0, err
 	}
@@ -252,13 +254,13 @@ func fsCreateFile(tempObjPath string, reader io.Reader, buf []byte, fallocSize i
 	// Fallocate only if the size is final object is known.
 	if fallocSize > 0 {
 		if err = fsFAllocate(int(writer.Fd()), 0, fallocSize); err != nil {
-			return 0, err
+			return 0, traceError(err)
 		}
 	}
 
 	bytesWritten, err := io.CopyBuffer(writer, reader, buf)
 	if err != nil {
-		return 0, err
+		return 0, traceError(err)
 	}
 
 	return bytesWritten, nil
@@ -267,20 +269,20 @@ func fsCreateFile(tempObjPath string, reader io.Reader, buf []byte, fallocSize i
 // Removes uploadID at destination path.
 func fsRemoveUploadIDPath(basePath, uploadIDPath string) error {
 	if basePath == "" || uploadIDPath == "" {
-		return errInvalidArgument
+		return traceError(errInvalidArgument)
 	}
 
 	// List all the entries in uploadID.
 	entries, err := readDir(uploadIDPath)
 	if err != nil && err != errFileNotFound {
-		return err
+		return traceError(err)
 	}
 
 	// Delete all the entries obtained from previous readdir.
 	for _, entryPath := range entries {
 		err = fsDeleteFile(basePath, pathJoin(uploadIDPath, entryPath))
 		if err != nil && err != errFileNotFound {
-			return err
+			return traceError(err)
 		}
 	}
 
@@ -325,11 +327,11 @@ func fsRenameFile(sourcePath, destPath string) error {
 // this function additionally protects the basePath from being deleted.
 func fsDeleteFile(basePath, deletePath string) error {
 	if err := checkPathLength(basePath); err != nil {
-		return err
+		return traceError(err)
 	}
 
 	if err := checkPathLength(deletePath); err != nil {
-		return err
+		return traceError(err)
 	}
 
 	if basePath == deletePath {
@@ -340,11 +342,11 @@ func fsDeleteFile(basePath, deletePath string) error {
 	pathSt, err := os.Stat(preparePath(deletePath))
 	if err != nil {
 		if os.IsNotExist(err) {
-			return errFileNotFound
+			return traceError(errFileNotFound)
 		} else if os.IsPermission(err) {
-			return errFileAccessDenied
+			return traceError(errFileAccessDenied)
 		}
-		return err
+		return traceError(err)
 	}
 
 	if pathSt.IsDir() && !isDirEmpty(deletePath) {
@@ -355,13 +357,13 @@ func fsDeleteFile(basePath, deletePath string) error {
 	// Attempt to remove path.
 	if err = os.Remove(preparePath(deletePath)); err != nil {
 		if os.IsNotExist(err) {
-			return errFileNotFound
+			return traceError(errFileNotFound)
 		} else if os.IsPermission(err) {
-			return errFileAccessDenied
+			return traceError(errFileAccessDenied)
 		} else if isSysErrNotEmpty(err) {
-			return errVolumeNotEmpty
+			return traceError(errVolumeNotEmpty)
 		}
-		return err
+		return traceError(err)
 	}
 
 	// Recursively go down the next path and delete again.

cmd/fs-v1-helpers_test.go

@@ -31,11 +31,11 @@ func TestFSStats(t *testing.T) {
 
 	// Setup test environment.
 
-	if err = fsMkdir(""); err != errInvalidArgument {
+	if err = fsMkdir(""); errorCause(err) != errInvalidArgument {
 		t.Fatal("Unexpected error", err)
 	}
 
-	if err = fsMkdir(pathJoin(path, "my-obj-del-0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001")); err != errFileNameTooLong {
+	if err = fsMkdir(pathJoin(path, "my-obj-del-0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001")); errorCause(err) != errFileNameTooLong {
 		t.Fatal("Unexpected error", err)
 	}
 
@@ -51,7 +51,7 @@ func TestFSStats(t *testing.T) {
 	// Seek back.
 	reader.Seek(0, 0)
 
-	if err = fsMkdir(pathJoin(path, "success-vol", "success-file")); err != errVolumeExists {
+	if err = fsMkdir(pathJoin(path, "success-vol", "success-file")); errorCause(err) != errVolumeExists {
 		t.Fatal("Unexpected error", err)
 	}
 
@@ -138,11 +138,11 @@ func TestFSStats(t *testing.T) {
 
 	for i, testCase := range testCases {
 		if testCase.srcPath != "" {
-			if _, err := fsStatFile(pathJoin(testCase.srcFSPath, testCase.srcVol, testCase.srcPath)); err != testCase.expectedErr {
+			if _, err := fsStatFile(pathJoin(testCase.srcFSPath, testCase.srcVol, testCase.srcPath)); errorCause(err) != testCase.expectedErr {
 				t.Fatalf("TestPosix case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
 			}
 		} else {
-			if _, err := fsStatDir(pathJoin(testCase.srcFSPath, testCase.srcVol)); err != testCase.expectedErr {
+			if _, err := fsStatDir(pathJoin(testCase.srcFSPath, testCase.srcVol)); errorCause(err) != testCase.expectedErr {
 				t.Fatalf("TestPosix case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
 			}
 		}
@@ -161,11 +161,11 @@ func TestFSCreateAndOpen(t *testing.T) {
 		t.Fatalf("Unable to create directory, %s", err)
 	}
 
-	if _, err = fsCreateFile("", nil, nil, 0); err != errInvalidArgument {
+	if _, err = fsCreateFile("", nil, nil, 0); errorCause(err) != errInvalidArgument {
 		t.Fatal("Unexpected error", err)
 	}
 
-	if _, _, err = fsOpenFile("", -1); err != errInvalidArgument {
+	if _, _, err = fsOpenFile("", -1); errorCause(err) != errInvalidArgument {
 		t.Fatal("Unexpected error", err)
 	}
 
@@ -200,17 +200,17 @@ func TestFSCreateAndOpen(t *testing.T) {
 
 	for i, testCase := range testCases {
 		_, err = fsCreateFile(pathJoin(path, testCase.srcVol, testCase.srcPath), reader, buf, reader.Size())
-		if err != testCase.expectedErr {
+		if errorCause(err) != testCase.expectedErr {
 			t.Errorf("Test case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
 		}
 		_, _, err = fsOpenFile(pathJoin(path, testCase.srcVol, testCase.srcPath), 0)
-		if err != testCase.expectedErr {
+		if errorCause(err) != testCase.expectedErr {
 			t.Errorf("Test case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
 		}
 	}
 
 	// Attempt to open a directory.
-	if _, _, err = fsOpenFile(pathJoin(path), 0); err != errIsNotRegular {
+	if _, _, err = fsOpenFile(pathJoin(path), 0); errorCause(err) != errIsNotRegular {
 		t.Fatal("Unexpected error", err)
 	}
 }
@@ -272,7 +272,7 @@ func TestFSDeletes(t *testing.T) {
 	}
 
 	for i, testCase := range testCases {
-		if err = fsDeleteFile(path, pathJoin(path, testCase.srcVol, testCase.srcPath)); err != testCase.expectedErr {
+		if err = fsDeleteFile(path, pathJoin(path, testCase.srcVol, testCase.srcPath)); errorCause(err) != testCase.expectedErr {
 			t.Errorf("Test case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
 		}
 	}
@@ -374,11 +374,11 @@ func TestFSRemoves(t *testing.T) {
 
 	for i, testCase := range testCases {
 		if testCase.srcPath != "" {
-			if err = fsRemoveFile(pathJoin(testCase.srcFSPath, testCase.srcVol, testCase.srcPath)); err != testCase.expectedErr {
+			if err = fsRemoveFile(pathJoin(testCase.srcFSPath, testCase.srcVol, testCase.srcPath)); errorCause(err) != testCase.expectedErr {
 				t.Errorf("Test case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
 			}
 		} else {
-			if err = fsRemoveDir(pathJoin(testCase.srcFSPath, testCase.srcVol, testCase.srcPath)); err != testCase.expectedErr {
+			if err = fsRemoveDir(pathJoin(testCase.srcFSPath, testCase.srcVol, testCase.srcPath)); errorCause(err) != testCase.expectedErr {
 				t.Error(err)
 			}
 		}
@@ -388,11 +388,11 @@ func TestFSRemoves(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if err = fsRemoveAll(""); err != errInvalidArgument {
+	if err = fsRemoveAll(""); errorCause(err) != errInvalidArgument {
 		t.Fatal(err)
 	}
 
-	if err = fsRemoveAll("my-obj-del-0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001"); err != errFileNameTooLong {
+	if err = fsRemoveAll("my-obj-del-0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001"); errorCause(err) != errFileNameTooLong {
 		t.Fatal(err)
 	}
 }

cmd/fs-v1-metadata.go

@@ -125,18 +125,18 @@ func (m *fsMetaV1) AddObjectPart(partNumber int, partName string, partETag strin
 	sort.Sort(byObjectPartNumber(m.Parts))
 }
 
-func (m *fsMetaV1) WriteTo(writer io.Writer) (n int64, err error) {
+func (m *fsMetaV1) WriteTo(lk *lock.LockedFile) (n int64, err error) {
 	var metadataBytes []byte
 	metadataBytes, err = json.Marshal(m)
 	if err != nil {
 		return 0, traceError(err)
 	}
 
-	if err = writer.(*lock.LockedFile).Truncate(0); err != nil {
+	if err = lk.Truncate(0); err != nil {
 		return 0, traceError(err)
 	}
 
-	if _, err = writer.Write(metadataBytes); err != nil {
+	if _, err = lk.Write(metadataBytes); err != nil {
 		return 0, traceError(err)
 	}
 
@@ -144,9 +144,14 @@ func (m *fsMetaV1) WriteTo(writer io.Writer) (n int64, err error) {
 	return int64(len(metadataBytes)), nil
 }
 
-func (m *fsMetaV1) ReadFrom(reader io.Reader) (n int64, err error) {
+func (m *fsMetaV1) ReadFrom(lk *lock.LockedFile) (n int64, err error) {
 	var metadataBytes []byte
-	metadataBytes, err = ioutil.ReadAll(reader)
+	fi, err := lk.Stat()
+	if err != nil {
+		return 0, traceError(err)
+	}
+
+	metadataBytes, err = ioutil.ReadAll(io.NewSectionReader(lk, 0, fi.Size()))
 	if err != nil {
 		return 0, traceError(err)
 	}

cmd/fs-v1-metadata_test.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"bytes"
-	"io"
 	"os"
 	"path/filepath"
 	"testing"
@@ -69,10 +68,9 @@ func TestReadFSMetadata(t *testing.T) {
 	}
 	defer rlk.Close()
 
-	sectionReader := io.NewSectionReader(rlk, 0, rlk.Size())
 	// Regular fs metadata reading, no errors expected
 	fsMeta := fsMetaV1{}
-	if _, err = fsMeta.ReadFrom(sectionReader); err != nil {
+	if _, err = fsMeta.ReadFrom(rlk.LockedFile); err != nil {
 		t.Fatal("Unexpected error ", err)
 	}
 
@@ -84,7 +82,7 @@ func TestReadFSMetadata(t *testing.T) {
 	file.Write([]byte{'a'})
 	file.Close()
 	fsMeta = fsMetaV1{}
-	if _, err := fsMeta.ReadFrom(sectionReader); err == nil {
+	if _, err := fsMeta.ReadFrom(rlk.LockedFile); err == nil {
 		t.Fatal("Should fail", err)
 	}
 }
@@ -119,10 +117,9 @@ func TestWriteFSMetadata(t *testing.T) {
 	}
 	defer rlk.Close()
 
-	sectionReader := io.NewSectionReader(rlk, 0, rlk.Size())
 	// FS metadata reading, no errors expected (healthy disk)
 	fsMeta := fsMetaV1{}
-	_, err = fsMeta.ReadFrom(sectionReader)
+	_, err = fsMeta.ReadFrom(rlk.LockedFile)
 	if err != nil {
 		t.Fatal("Unexpected error ", err)
 	}

cmd/fs-v1-multipart-common.go

@@ -1,142 +0,0 @@
-/*
- * Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package cmd
-
-import (
-	"fmt"
-	"io"
-	"runtime"
-	"time"
-
-	pathutil "path"
-
-	"github.com/minio/minio/pkg/lock"
-)
-
-// Returns if the prefix is a multipart upload.
-func (fs fsObjects) isMultipartUpload(bucket, prefix string) bool {
-	uploadsIDPath := pathJoin(fs.fsPath, bucket, prefix, uploadsJSONFile)
-	_, err := fsStatFile(uploadsIDPath)
-	if err != nil {
-		if err == errFileNotFound {
-			return false
-		}
-		errorIf(err, "Unable to access uploads.json "+uploadsIDPath)
-		return false
-	}
-	return true
-}
-
-// Delete uploads.json file wrapper handling a tricky case on windows.
-func (fs fsObjects) deleteUploadsJSON(bucket, object, uploadID string) error {
-	timeID := fmt.Sprintf("%X", time.Now().UTC().UnixNano())
-	tmpPath := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, uploadID+"+"+timeID)
-
-	multipartBucketPath := pathJoin(fs.fsPath, minioMetaMultipartBucket)
-	uploadPath := pathJoin(multipartBucketPath, bucket, object)
-	uploadsMetaPath := pathJoin(uploadPath, uploadsJSONFile)
-
-	// Special case for windows please read through.
-	if runtime.GOOS == globalWindowsOSName {
-		// Ordinarily windows does not permit deletion or renaming of files still
-		// in use, but if all open handles to that file were opened with FILE_SHARE_DELETE
-		// then it can permit renames and deletions of open files.
-		//
-		// There are however some gotchas with this, and it is worth listing them here.
-		// Firstly, Windows never allows you to really delete an open file, rather it is
-		// flagged as delete pending and its entry in its directory remains visible
-		// (though no new file handles may be opened to it) and when the very last
-		// open handle to the file in the system is closed, only then is it truly
-		// deleted. Well, actually only sort of truly deleted, because Windows only
-		// appears to remove the file entry from the directory, but in fact that
-		// entry is merely hidden and actually still exists and attempting to create
-		// a file with the same name will return an access denied error. How long it
-		// silently exists for depends on a range of factors, but put it this way:
-		// if your code loops creating and deleting the same file name as you might
-		// when operating a lock file, you're going to see lots of random spurious
-		// access denied errors and truly dismal lock file performance compared to POSIX.
-		//
-		// We work-around these un-POSIX file semantics by taking a dual step to
-		// deleting files. Firstly, it renames the file to tmp location into multipartTmpBucket
-		// We always open files with FILE_SHARE_DELETE permission enabled, with that
-		// flag Windows permits renaming and deletion, and because the name was changed
-		// to a very random name somewhere not in its origin directory before deletion,
-		// you don't see those unexpected random errors when creating files with the
-		// same name as a recently deleted file as you do anywhere else on Windows.
-		// Because the file is probably not in its original containing directory any more,
-		// deletions of that directory will not fail with “directory not empty” as they
-		// otherwise normally would either.
-		fsRenameFile(uploadsMetaPath, tmpPath)
-
-		// Proceed to deleting the directory.
-		if err := fsDeleteFile(multipartBucketPath, uploadPath); err != nil {
-			return err
-		}
-
-		// Finally delete the renamed file.
-		return fsDeleteFile(pathutil.Dir(tmpPath), tmpPath)
-	}
-	return fsDeleteFile(multipartBucketPath, uploadsMetaPath)
-}
-
-// Removes the uploadID, called either by CompleteMultipart of AbortMultipart. If the resuling uploads
-// slice is empty then we remove/purge the file.
-func (fs fsObjects) removeUploadID(bucket, object, uploadID string, rwlk *lock.LockedFile) error {
-	uploadIDs := uploadsV1{}
-	_, err := uploadIDs.ReadFrom(io.NewSectionReader(rwlk, 0, rwlk.Size()))
-	if err != nil {
-		return err
-	}
-
-	// Removes upload id from the uploads list.
-	uploadIDs.RemoveUploadID(uploadID)
-
-	// Check this is the last entry.
-	if uploadIDs.IsEmpty() {
-		// No more uploads left, so we delete `uploads.json` file.
-		return fs.deleteUploadsJSON(bucket, object, uploadID)
-	} // else not empty
-
-	// Write update `uploads.json`.
-	_, err = uploadIDs.WriteTo(rwlk)
-	return err
-}
-
-// Adds a new uploadID if no previous `uploads.json` is
-// found we initialize a new one.
-func (fs fsObjects) addUploadID(bucket, object, uploadID string, initiated time.Time, rwlk *lock.LockedFile) error {
-	uploadIDs := uploadsV1{}
-
-	_, err := uploadIDs.ReadFrom(io.NewSectionReader(rwlk, 0, rwlk.Size()))
-	// For all unexpected errors, we return.
-	if err != nil && errorCause(err) != io.EOF {
-		return err
-	}
-
-	// If we couldn't read anything, we assume a default
-	// (empty) upload info.
-	if errorCause(err) == io.EOF {
-		uploadIDs = newUploadsV1("fs")
-	}
-
-	// Adds new upload id to the list.
-	uploadIDs.AddUploadID(uploadID, initiated)
-
-	// Write update `uploads.json`.
-	_, err = uploadIDs.WriteTo(rwlk)
-	return err
-}

cmd/fs-v1-multipart-common_test.go

@@ -1,49 +0,0 @@
-/*
- * Minio Cloud Storage, (C) 2016 Minio, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package cmd
-
-import (
-	"path/filepath"
-	"testing"
-)
-
-// TestFSWriteUploadJSON - tests for writeUploadJSON for FS
-func TestFSWriteUploadJSON(t *testing.T) {
-	// Prepare for tests
-	disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())
-	defer removeAll(disk)
-
-	obj := initFSObjects(disk, t)
-
-	bucketName := "bucket"
-	objectName := "object"
-
-	obj.MakeBucket(bucketName)
-	_, err := obj.NewMultipartUpload(bucketName, objectName, nil)
-	if err != nil {
-		t.Fatal("Unexpected err: ", err)
-	}
-
-	// newMultipartUpload will fail.
-	removeAll(disk) // Remove disk.
-	_, err = obj.NewMultipartUpload(bucketName, objectName, nil)
-	if err != nil {
-		if _, ok := errorCause(err).(BucketNotFound); !ok {
-			t.Fatal("Unexpected err: ", err)
-		}
-	}
-}

cmd/fs-v1-multipart.go

@@ -24,12 +24,128 @@ import (
 	"io"
 	"os"
 	pathutil "path"
+	"runtime"
 	"strings"
 	"time"
 
+	"github.com/minio/minio/pkg/lock"
 	"github.com/minio/sha256-simd"
 )
 
+// Returns if the prefix is a multipart upload.
+func (fs fsObjects) isMultipartUpload(bucket, prefix string) bool {
+	uploadsIDPath := pathJoin(fs.fsPath, bucket, prefix, uploadsJSONFile)
+	_, err := fsStatFile(uploadsIDPath)
+	if err != nil {
+		if err == errFileNotFound {
+			return false
+		}
+		errorIf(err, "Unable to access uploads.json "+uploadsIDPath)
+		return false
+	}
+	return true
+}
+
+// Delete uploads.json file wrapper handling a tricky case on windows.
+func (fs fsObjects) deleteUploadsJSON(bucket, object, uploadID string) error {
+	timeID := fmt.Sprintf("%X", time.Now().UTC().UnixNano())
+	tmpPath := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, uploadID+"+"+timeID)
+
+	multipartBucketPath := pathJoin(fs.fsPath, minioMetaMultipartBucket)
+	uploadPath := pathJoin(multipartBucketPath, bucket, object)
+	uploadsMetaPath := pathJoin(uploadPath, uploadsJSONFile)
+
+	// Special case for windows please read through.
+	if runtime.GOOS == globalWindowsOSName {
+		// Ordinarily windows does not permit deletion or renaming of files still
+		// in use, but if all open handles to that file were opened with FILE_SHARE_DELETE
+		// then it can permit renames and deletions of open files.
+		//
+		// There are however some gotchas with this, and it is worth listing them here.
+		// Firstly, Windows never allows you to really delete an open file, rather it is
+		// flagged as delete pending and its entry in its directory remains visible
+		// (though no new file handles may be opened to it) and when the very last
+		// open handle to the file in the system is closed, only then is it truly
+		// deleted. Well, actually only sort of truly deleted, because Windows only
+		// appears to remove the file entry from the directory, but in fact that
+		// entry is merely hidden and actually still exists and attempting to create
+		// a file with the same name will return an access denied error. How long it
+		// silently exists for depends on a range of factors, but put it this way:
+		// if your code loops creating and deleting the same file name as you might
+		// when operating a lock file, you're going to see lots of random spurious
+		// access denied errors and truly dismal lock file performance compared to POSIX.
+		//
+		// We work-around these un-POSIX file semantics by taking a dual step to
+		// deleting files. Firstly, it renames the file to tmp location into multipartTmpBucket
+		// We always open files with FILE_SHARE_DELETE permission enabled, with that
+		// flag Windows permits renaming and deletion, and because the name was changed
+		// to a very random name somewhere not in its origin directory before deletion,
+		// you don't see those unexpected random errors when creating files with the
+		// same name as a recently deleted file as you do anywhere else on Windows.
+		// Because the file is probably not in its original containing directory any more,
+		// deletions of that directory will not fail with "directory not empty" as they
+		// otherwise normally would either.
+		fsRenameFile(uploadsMetaPath, tmpPath)
+
+		// Proceed to deleting the directory.
+		if err := fsDeleteFile(multipartBucketPath, uploadPath); err != nil {
+			return err
+		}
+
+		// Finally delete the renamed file.
+		return fsDeleteFile(pathutil.Dir(tmpPath), tmpPath)
+	}
+	return fsDeleteFile(multipartBucketPath, uploadsMetaPath)
+}
+
+// Removes the uploadID, called either by CompleteMultipart of AbortMultipart. If the resuling uploads
+// slice is empty then we remove/purge the file.
+func (fs fsObjects) removeUploadID(bucket, object, uploadID string, rwlk *lock.LockedFile) error {
+	uploadIDs := uploadsV1{}
+	_, err := uploadIDs.ReadFrom(rwlk)
+	if err != nil {
+		return err
+	}
+
+	// Removes upload id from the uploads list.
+	uploadIDs.RemoveUploadID(uploadID)
+
+	// Check this is the last entry.
+	if uploadIDs.IsEmpty() {
+		// No more uploads left, so we delete `uploads.json` file.
+		return fs.deleteUploadsJSON(bucket, object, uploadID)
+	} // else not empty
+
+	// Write update `uploads.json`.
+	_, err = uploadIDs.WriteTo(rwlk)
+	return err
+}
+
+// Adds a new uploadID if no previous `uploads.json` is
+// found we initialize a new one.
+func (fs fsObjects) addUploadID(bucket, object, uploadID string, initiated time.Time, rwlk *lock.LockedFile) error {
+	uploadIDs := uploadsV1{}
+
+	_, err := uploadIDs.ReadFrom(rwlk)
+	// For all unexpected errors, we return.
+	if err != nil && errorCause(err) != io.EOF {
+		return err
+	}
+
+	// If we couldn't read anything, we assume a default
+	// (empty) upload info.
+	if errorCause(err) == io.EOF {
+		uploadIDs = newUploadsV1("fs")
+	}
+
+	// Adds new upload id to the list.
+	uploadIDs.AddUploadID(uploadID, initiated)
+
+	// Write update `uploads.json`.
+	_, err = uploadIDs.WriteTo(rwlk)
+	return err
+}
+
 // listMultipartUploadIDs - list all the upload ids from a marker up to 'count'.
 func (fs fsObjects) listMultipartUploadIDs(bucketName, objectName, uploadIDMarker string, count int) ([]uploadMetadata, bool, error) {
 	var uploads []uploadMetadata
@@ -52,7 +168,7 @@ func (fs fsObjects) listMultipartUploadIDs(bucketName, objectName, uploadIDMarke
 
 	// Read `uploads.json`.
 	uploadIDs := uploadsV1{}
-	if _, err = uploadIDs.ReadFrom(io.NewSectionReader(rlk, 0, rlk.Size())); err != nil {
+	if _, err = uploadIDs.ReadFrom(rlk.LockedFile); err != nil {
 		return nil, false, err
 	}
 
@@ -335,17 +451,49 @@ func partToAppend(fsMeta fsMetaV1, fsAppendMeta fsMetaV1) (part objectPartInfo,
 	return fsMeta.Parts[nextPartIndex], true
 }
 
+// CopyObjectPart - similar to PutObjectPart but reads data from an existing
+// object. Internally incoming data is written to '.minio.sys/tmp' location
+// and safely renamed to '.minio.sys/multipart' for reach parts.
+func (fs fsObjects) CopyObjectPart(srcBucket, srcObject, dstBucket, dstObject, uploadID string, partID int, startOffset int64, length int64) (PartInfo, error) {
+	if err := checkNewMultipartArgs(srcBucket, srcObject, fs); err != nil {
+		return PartInfo{}, err
+	}
+
+	// Initialize pipe.
+	pipeReader, pipeWriter := io.Pipe()
+
+	go func() {
+		startOffset := int64(0) // Read the whole file.
+		if gerr := fs.GetObject(srcBucket, srcObject, startOffset, length, pipeWriter); gerr != nil {
+			errorIf(gerr, "Unable to read %s/%s.", srcBucket, srcObject)
+			pipeWriter.CloseWithError(gerr)
+			return
+		}
+		pipeWriter.Close() // Close writer explicitly signalling we wrote all data.
+	}()
+
+	partInfo, err := fs.PutObjectPart(dstBucket, dstObject, uploadID, partID, length, pipeReader, "", "")
+	if err != nil {
+		return PartInfo{}, toObjectErr(err, dstBucket, dstObject)
+	}
+
+	// Explicitly close the reader.
+	pipeReader.Close()
+
+	return partInfo, nil
+}
+
 // PutObjectPart - reads incoming data until EOF for the part file on
 // an ongoing multipart transaction. Internally incoming data is
 // written to '.minio.sys/tmp' location and safely renamed to
 // '.minio.sys/multipart' for reach parts.
-func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string, sha256sum string) (string, error) {
+func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string, sha256sum string) (PartInfo, error) {
 	if err := checkPutObjectPartArgs(bucket, object, fs); err != nil {
-		return "", err
+		return PartInfo{}, err
 	}
 
 	if _, err := fs.statBucketDir(bucket); err != nil {
-		return "", toObjectErr(err, bucket)
+		return PartInfo{}, toObjectErr(err, bucket)
 	}
 
 	// Hold the lock so that two parallel complete-multipart-uploads
@@ -358,9 +506,9 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
 	uploadsPath := pathJoin(fs.fsPath, minioMetaMultipartBucket, bucket, object, uploadsJSONFile)
 	if _, err := fs.rwPool.Open(uploadsPath); err != nil {
 		if err == errFileNotFound || err == errFileAccessDenied {
-			return "", traceError(InvalidUploadID{UploadID: uploadID})
+			return PartInfo{}, traceError(InvalidUploadID{UploadID: uploadID})
 		}
-		return "", toObjectErr(traceError(err), bucket, object)
+		return PartInfo{}, toObjectErr(traceError(err), bucket, object)
 	}
 	defer fs.rwPool.Close(uploadsPath)
 
@@ -371,16 +519,16 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
 	rwlk, err := fs.rwPool.Write(fsMetaPath)
 	if err != nil {
 		if err == errFileNotFound || err == errFileAccessDenied {
-			return "", traceError(InvalidUploadID{UploadID: uploadID})
+			return PartInfo{}, traceError(InvalidUploadID{UploadID: uploadID})
 		}
-		return "", toObjectErr(traceError(err), bucket, object)
+		return PartInfo{}, toObjectErr(traceError(err), bucket, object)
 	}
 	defer rwlk.Close()
 
 	fsMeta := fsMetaV1{}
-	_, err = fsMeta.ReadFrom(io.NewSectionReader(rwlk, 0, rwlk.Size()))
+	_, err = fsMeta.ReadFrom(rwlk)
 	if err != nil {
-		return "", toObjectErr(err, minioMetaMultipartBucket, fsMetaPath)
+		return PartInfo{}, toObjectErr(err, minioMetaMultipartBucket, fsMetaPath)
 	}
 
 	partSuffix := fmt.Sprintf("object%d", partID)
@@ -418,14 +566,14 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
 	bytesWritten, cErr := fsCreateFile(fsPartPath, teeReader, buf, size)
 	if cErr != nil {
 		fsRemoveFile(fsPartPath)
-		return "", toObjectErr(cErr, minioMetaTmpBucket, tmpPartPath)
+		return PartInfo{}, toObjectErr(cErr, minioMetaTmpBucket, tmpPartPath)
 	}
 
 	// Should return IncompleteBody{} error when reader has fewer
 	// bytes than specified in request header.
 	if bytesWritten < size {
 		fsRemoveFile(fsPartPath)
-		return "", traceError(IncompleteBody{})
+		return PartInfo{}, traceError(IncompleteBody{})
 	}
 
 	// Delete temporary part in case of failure. If
@@ -436,14 +584,14 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
 	newMD5Hex := hex.EncodeToString(md5Writer.Sum(nil))
 	if md5Hex != "" {
 		if newMD5Hex != md5Hex {
-			return "", traceError(BadDigest{md5Hex, newMD5Hex})
+			return PartInfo{}, traceError(BadDigest{md5Hex, newMD5Hex})
 		}
 	}
 
 	if sha256sum != "" {
 		newSHA256sum := hex.EncodeToString(sha256Writer.Sum(nil))
 		if newSHA256sum != sha256sum {
-			return "", traceError(SHA256Mismatch{})
+			return PartInfo{}, traceError(SHA256Mismatch{})
 		}
 	}
 
@@ -456,14 +604,20 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
 	fsNSPartPath := pathJoin(fs.fsPath, minioMetaMultipartBucket, partPath)
 	if err = fsRenameFile(fsPartPath, fsNSPartPath); err != nil {
 		partLock.Unlock()
-		return "", toObjectErr(err, minioMetaMultipartBucket, partPath)
+		return PartInfo{}, toObjectErr(err, minioMetaMultipartBucket, partPath)
 	}
 
 	// Save the object part info in `fs.json`.
 	fsMeta.AddObjectPart(partID, partSuffix, newMD5Hex, size)
 	if _, err = fsMeta.WriteTo(rwlk); err != nil {
 		partLock.Unlock()
-		return "", toObjectErr(err, minioMetaMultipartBucket, uploadIDPath)
+		return PartInfo{}, toObjectErr(err, minioMetaMultipartBucket, uploadIDPath)
+	}
+
+	partNamePath := pathJoin(fs.fsPath, minioMetaMultipartBucket, uploadIDPath, partSuffix)
+	fi, err := fsStatFile(partNamePath)
+	if err != nil {
+		return PartInfo{}, toObjectErr(err, minioMetaMultipartBucket, partSuffix)
 	}
 
 	// Append the part in background.
@@ -477,7 +631,12 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
 		partLock.Unlock()
 	}()
 
-	return newMD5Hex, nil
+	return PartInfo{
+		PartNumber:   partID,
+		LastModified: fi.ModTime(),
+		ETag:         newMD5Hex,
+		Size:         fi.Size(),
+	}, nil
 }
 
 // listObjectParts - wrapper scanning through
@@ -499,7 +658,7 @@ func (fs fsObjects) listObjectParts(bucket, object, uploadID string, partNumberM
 	defer fs.rwPool.Close(fsMetaPath)
 
 	fsMeta := fsMetaV1{}
-	_, err = fsMeta.ReadFrom((io.NewSectionReader(metaFile, 0, metaFile.Size())))
+	_, err = fsMeta.ReadFrom(metaFile.LockedFile)
 	if err != nil {
 		return ListPartsInfo{}, toObjectErr(err, minioMetaBucket, fsMetaPath)
 	}
@@ -517,9 +676,9 @@ func (fs fsObjects) listObjectParts(bucket, object, uploadID string, partNumberM
 		partNamePath := pathJoin(fs.fsPath, minioMetaMultipartBucket, uploadIDPath, part.Name)
 		fi, err = fsStatFile(partNamePath)
 		if err != nil {
-			return ListPartsInfo{}, toObjectErr(traceError(err), minioMetaMultipartBucket, partNamePath)
+			return ListPartsInfo{}, toObjectErr(err, minioMetaMultipartBucket, partNamePath)
 		}
-		result.Parts = append(result.Parts, partInfo{
+		result.Parts = append(result.Parts, PartInfo{
 			PartNumber:   part.Number,
 			ETag:         part.ETag,
 			LastModified: fi.ModTime(),
@@ -630,7 +789,7 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
 
 	fsMeta := fsMetaV1{}
 	// Read saved fs metadata for ongoing multipart.
-	_, err = fsMeta.ReadFrom(io.NewSectionReader(rlk, 0, rlk.Size()))
+	_, err = fsMeta.ReadFrom(rlk.LockedFile)
 	if err != nil {
 		fs.rwPool.Close(fsMetaPathMultipart)
 		return ObjectInfo{}, toObjectErr(err, minioMetaMultipartBucket, fsMetaPathMultipart)
@@ -767,7 +926,7 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
 	multipartObjectDir := pathJoin(fs.fsPath, minioMetaMultipartBucket, bucket, object)
 	multipartUploadIDDir := pathJoin(multipartObjectDir, uploadID)
 	if err = fsRemoveUploadIDPath(multipartObjectDir, multipartUploadIDDir); err != nil {
-		return ObjectInfo{}, toObjectErr(traceError(err), bucket, object)
+		return ObjectInfo{}, toObjectErr(err, bucket, object)
 	}
 
 	// Remove entry from `uploads.json`.
@@ -777,7 +936,7 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
 
 	fi, err := fsStatFile(fsNSObjPath)
 	if err != nil {
-		return ObjectInfo{}, toObjectErr(traceError(err), bucket, object)
+		return ObjectInfo{}, toObjectErr(err, bucket, object)
 	}
 
 	// Return object info.
@@ -845,7 +1004,7 @@ func (fs fsObjects) AbortMultipartUpload(bucket, object, uploadID string) error
 	multipartObjectDir := pathJoin(fs.fsPath, minioMetaMultipartBucket, bucket, object)
 	multipartUploadIDDir := pathJoin(multipartObjectDir, uploadID)
 	if err = fsRemoveUploadIDPath(multipartObjectDir, multipartUploadIDDir); err != nil {
-		return toObjectErr(traceError(err), bucket, object)
+		return toObjectErr(err, bucket, object)
 	}
 
 	// Remove entry from `uploads.json`.

cmd/fs-v1-multipart_test.go

@@ -22,6 +22,33 @@ import (
 	"testing"
 )
 
+// TestFSWriteUploadJSON - tests for writeUploadJSON for FS
+func TestFSWriteUploadJSON(t *testing.T) {
+	// Prepare for tests
+	disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())
+	defer removeAll(disk)
+
+	obj := initFSObjects(disk, t)
+
+	bucketName := "bucket"
+	objectName := "object"
+
+	obj.MakeBucket(bucketName)
+	_, err := obj.NewMultipartUpload(bucketName, objectName, nil)
+	if err != nil {
+		t.Fatal("Unexpected err: ", err)
+	}
+
+	// newMultipartUpload will fail.
+	removeAll(disk) // Remove disk.
+	_, err = obj.NewMultipartUpload(bucketName, objectName, nil)
+	if err != nil {
+		if _, ok := errorCause(err).(BucketNotFound); !ok {
+			t.Fatal("Unexpected err: ", err)
+		}
+	}
+}
+
 // TestNewMultipartUploadFaultyDisk - test NewMultipartUpload with faulty disks
 func TestNewMultipartUploadFaultyDisk(t *testing.T) {
 	// Prepare for tests

cmd/fs-v1.go

@@ -245,7 +245,7 @@ func (fs fsObjects) statBucketDir(bucket string) (os.FileInfo, error) {
 	}
 	st, err := fsStatDir(bucketDir)
 	if err != nil {
-		return nil, traceError(err)
+		return nil, err
 	}
 	return st, nil
 }
@@ -259,7 +259,7 @@ func (fs fsObjects) MakeBucket(bucket string) error {
 	}
 
 	if err = fsMkdir(bucketDir); err != nil {
-		return toObjectErr(traceError(err), bucket)
+		return toObjectErr(err, bucket)
 	}
 
 	return nil
@@ -283,7 +283,7 @@ func (fs fsObjects) GetBucketInfo(bucket string) (BucketInfo, error) {
 // ListBuckets - list all s3 compatible buckets (directories) at fsPath.
 func (fs fsObjects) ListBuckets() ([]BucketInfo, error) {
 	if err := checkPathLength(fs.fsPath); err != nil {
-		return nil, err
+		return nil, traceError(err)
 	}
 	var bucketInfos []BucketInfo
 	entries, err := readDir(preparePath(fs.fsPath))
@@ -301,9 +301,9 @@ func (fs fsObjects) ListBuckets() ([]BucketInfo, error) {
 		fi, err = fsStatDir(pathJoin(fs.fsPath, entry))
 		if err != nil {
 			// If the directory does not exist, skip the entry.
-			if err == errVolumeNotFound {
+			if errorCause(err) == errVolumeNotFound {
 				continue
-			} else if err == errVolumeAccessDenied {
+			} else if errorCause(err) == errVolumeAccessDenied {
 				// Skip the entry if its a file.
 				continue
 			}
@@ -376,7 +376,7 @@ func (fs fsObjects) CopyObject(srcBucket, srcObject, dstBucket, dstObject string
 	// Stat the file to get file size.
 	fi, err := fsStatFile(pathJoin(fs.fsPath, srcBucket, srcObject))
 	if err != nil {
-		return ObjectInfo{}, toObjectErr(traceError(err), srcBucket, srcObject)
+		return ObjectInfo{}, toObjectErr(err, srcBucket, srcObject)
 	}
 
 	// Check if this request is only metadata update.
@@ -386,7 +386,7 @@ func (fs fsObjects) CopyObject(srcBucket, srcObject, dstBucket, dstObject string
 		var wlk *lock.LockedFile
 		wlk, err = fs.rwPool.Write(fsMetaPath)
 		if err != nil {
-			return ObjectInfo{}, toObjectErr(err, srcBucket, srcObject)
+			return ObjectInfo{}, toObjectErr(traceError(err), srcBucket, srcObject)
 		}
 		// This close will allow for locks to be synchronized on `fs.json`.
 		defer wlk.Close()
@@ -467,7 +467,7 @@ func (fs fsObjects) GetObject(bucket, object string, offset int64, length int64,
 	fsObjPath := pathJoin(fs.fsPath, bucket, object)
 	reader, size, err := fsOpenFile(fsObjPath, offset)
 	if err != nil {
-		return toObjectErr(traceError(err), bucket, object)
+		return toObjectErr(err, bucket, object)
 	}
 	defer reader.Close()
 
@@ -505,8 +505,13 @@ func (fs fsObjects) getObjectInfo(bucket, object string) (ObjectInfo, error) {
 	if err == nil {
 		// Read from fs metadata only if it exists.
 		defer fs.rwPool.Close(fsMetaPath)
-		if _, rerr := fsMeta.ReadFrom(io.NewSectionReader(rlk, 0, rlk.Size())); rerr != nil {
-			return ObjectInfo{}, toObjectErr(rerr, bucket, object)
+		if _, rerr := fsMeta.ReadFrom(rlk.LockedFile); rerr != nil {
+			// `fs.json` can be empty due to previously failed
+			// PutObject() transaction, if we arrive at such
+			// a situation we just ignore and continue.
+			if errorCause(rerr) != io.EOF {
+				return ObjectInfo{}, toObjectErr(rerr, bucket, object)
+			}
 		}
 	}
 
@@ -518,7 +523,7 @@ func (fs fsObjects) getObjectInfo(bucket, object string) (ObjectInfo, error) {
 	// Stat the file to get file size.
 	fi, err := fsStatFile(pathJoin(fs.fsPath, bucket, object))
 	if err != nil {
-		return ObjectInfo{}, toObjectErr(traceError(err), bucket, object)
+		return ObjectInfo{}, toObjectErr(err, bucket, object)
 	}
 
 	return fsMeta.ToObjectInfo(bucket, object, fi), nil
@@ -569,7 +574,7 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
 		fsMetaPath := pathJoin(fs.fsPath, minioMetaBucket, bucketMetaPrefix, bucket, object, fsMetaJSONFile)
 		wlk, err = fs.rwPool.Create(fsMetaPath)
 		if err != nil {
-			return ObjectInfo{}, toObjectErr(err, bucket, object)
+			return ObjectInfo{}, toObjectErr(traceError(err), bucket, object)
 		}
 		// This close will allow for locks to be synchronized on `fs.json`.
 		defer wlk.Close()
@@ -667,7 +672,7 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
 	// Stat the file to fetch timestamp, size.
 	fi, err := fsStatFile(pathJoin(fs.fsPath, bucket, object))
 	if err != nil {
-		return ObjectInfo{}, toObjectErr(traceError(err), bucket, object)
+		return ObjectInfo{}, toObjectErr(err, bucket, object)
 	}
 
 	// Success.
@@ -694,20 +699,20 @@ func (fs fsObjects) DeleteObject(bucket, object string) error {
 			defer rwlk.Close()
 		}
 		if lerr != nil && lerr != errFileNotFound {
-			return toObjectErr(lerr, bucket, object)
+			return toObjectErr(traceError(lerr), bucket, object)
 		}
 	}
 
 	// Delete the object.
 	if err := fsDeleteFile(pathJoin(fs.fsPath, bucket), pathJoin(fs.fsPath, bucket, object)); err != nil {
-		return toObjectErr(traceError(err), bucket, object)
+		return toObjectErr(err, bucket, object)
 	}
 
 	if bucket != minioMetaBucket {
 		// Delete the metadata object.
 		err := fsDeleteFile(minioMetaBucketDir, fsMetaPath)
-		if err != nil && err != errFileNotFound {
-			return toObjectErr(traceError(err), bucket, object)
+		if err != nil && errorCause(err) != errFileNotFound {
+			return toObjectErr(err, bucket, object)
 		}
 	}
 	return nil
@@ -726,37 +731,11 @@ func (fs fsObjects) listDirFactory(isLeaf isLeafFunc) listDirFunc {
 	// listDir - lists all the entries at a given prefix and given entry in the prefix.
 	listDir := func(bucket, prefixDir, prefixEntry string) (entries []string, delayIsLeaf bool, err error) {
 		entries, err = readDir(pathJoin(fs.fsPath, bucket, prefixDir))
-		if err == nil {
-			// Listing needs to be sorted.
-			sort.Strings(entries)
-
-			// Filter entries that have the prefix prefixEntry.
-			entries = filterMatchingPrefix(entries, prefixEntry)
-
-			// Can isLeaf() check be delayed till when it has to be sent down the
-			// treeWalkResult channel?
-			delayIsLeaf = delayIsLeafCheck(entries)
-			if delayIsLeaf {
-				return entries, delayIsLeaf, nil
-			}
-
-			// isLeaf() check has to happen here so that trailing "/" for objects can be removed.
-			for i, entry := range entries {
-				if isLeaf(bucket, pathJoin(prefixDir, entry)) {
-					entries[i] = strings.TrimSuffix(entry, slashSeparator)
-				}
-			}
-
-			// Sort again after removing trailing "/" for objects as the previous sort
-			// does not hold good anymore.
-			sort.Strings(entries)
-
-			// Succes.
-			return entries, delayIsLeaf, nil
-		} // Return error at the end.
-
-		// Error.
-		return nil, false, err
+		if err != nil {
+			return nil, false, err
+		}
+		entries, delayIsLeaf = filterListEntries(bucket, prefixDir, entries, prefixEntry, isLeaf)
+		return entries, delayIsLeaf, nil
 	}
 
 	// Return list factory instance.
@@ -811,7 +790,7 @@ func (fs fsObjects) ListObjects(bucket, prefix, marker, delimiter string, maxKey
 		var fi os.FileInfo
 		fi, err = fsStatFile(pathJoin(fs.fsPath, bucket, entry))
 		if err != nil {
-			return ObjectInfo{}, toObjectErr(traceError(err), bucket, entry)
+			return ObjectInfo{}, toObjectErr(err, bucket, entry)
 		}
 		fsMeta := fsMetaV1{}
 		return fsMeta.ToObjectInfo(bucket, entry, fi), nil

cmd/fs-v1_test.go

@@ -77,13 +77,11 @@ func TestFSShutdown(t *testing.T) {
 	removeAll(disk)
 
 	// Test Shutdown with faulty disk
-	for i := 1; i <= 5; i++ {
-		fs, disk := prepareTest()
-		fs.DeleteObject(bucketName, objectName)
-		removeAll(disk)
-		if err := fs.Shutdown(); err != nil {
-			t.Fatal(i, ", Got unexpected fs shutdown error: ", err)
-		}
+	fs, disk = prepareTest()
+	fs.DeleteObject(bucketName, objectName)
+	removeAll(disk)
+	if err := fs.Shutdown(); err != nil {
+		t.Fatal("Got unexpected fs shutdown error: ", err)
 	}
 }
 

cmd/generic-handlers.go

@@ -17,6 +17,8 @@
 package cmd
 
 import (
+	"bufio"
+	"net"
 	"net/http"
 	"path"
 	"strings"
@@ -141,8 +143,8 @@ func setBrowserCacheControlHandler(h http.Handler) http.Handler {
 func (h cacheControlHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	if r.Method == httpGET && guessIsBrowserReq(r) && globalIsBrowserEnabled {
 		// For all browser requests set appropriate Cache-Control policies
-		if strings.HasPrefix(r.URL.Path, reservedBucket+"/") {
-			if strings.HasSuffix(r.URL.Path, ".js") || r.URL.Path == reservedBucket+"/favicon.ico" {
+		if hasPrefix(r.URL.Path, reservedBucket+"/") {
+			if hasSuffix(r.URL.Path, ".js") || r.URL.Path == reservedBucket+"/favicon.ico" {
 				// For assets set cache expiry of one year. For each release, the name
 				// of the asset name will change and hence it can not be served from cache.
 				w.Header().Set("Cache-Control", "max-age=31536000")
@@ -356,3 +358,52 @@ func (h resourceHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	// Serve HTTP.
 	h.handler.ServeHTTP(w, r)
 }
+
+// httpResponseRecorder wraps http.ResponseWriter
+// to record some useful http response data.
+type httpResponseRecorder struct {
+	http.ResponseWriter
+	respStatusCode int
+}
+
+// Wraps ResponseWriter's Write()
+func (rww *httpResponseRecorder) Write(b []byte) (int, error) {
+	return rww.ResponseWriter.Write(b)
+}
+
+// Wraps ResponseWriter's Flush()
+func (rww *httpResponseRecorder) Flush() {
+	rww.ResponseWriter.(http.Flusher).Flush()
+}
+
+// Wraps ResponseWriter's WriteHeader() and record
+// the response status code
+func (rww *httpResponseRecorder) WriteHeader(httpCode int) {
+	rww.respStatusCode = httpCode
+	rww.ResponseWriter.WriteHeader(httpCode)
+}
+
+func (rww *httpResponseRecorder) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	return rww.ResponseWriter.(http.Hijacker).Hijack()
+}
+
+// httpStatsHandler definition: gather HTTP statistics
+type httpStatsHandler struct {
+	handler http.Handler
+}
+
+// setHttpStatsHandler sets a http Stats Handler
+func setHTTPStatsHandler(h http.Handler) http.Handler {
+	return httpStatsHandler{handler: h}
+}
+
+func (h httpStatsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// Wraps w to record http response information
+	ww := &httpResponseRecorder{ResponseWriter: w}
+
+	// Execute the request
+	h.handler.ServeHTTP(ww, r)
+
+	// Update http statistics
+	globalHTTPStats.updateStats(r, ww)
+}

cmd/globals.go

@@ -31,11 +31,6 @@ import (
 	"github.com/minio/minio/pkg/objcache"
 )
 
-// Global constants for Minio.
-const (
-	minGoVersion = ">= 1.7" // Minio requires at least Go v1.7
-)
-
 // minio configuration related constants.
 const (
 	globalMinioConfigVersion      = "13"
@@ -51,6 +46,8 @@ const (
 	globalMinioDefaultOwnerID      = "minio"
 	globalMinioDefaultStorageClass = "STANDARD"
 	globalWindowsOSName            = "windows"
+	globalNetBSDOSName             = "netbsd"
+	globalSolarisOSName            = "solaris"
 	// Add new global values here.
 )
 
@@ -59,6 +56,9 @@ const (
 	// can reach that size according to https://aws.amazon.com/articles/1434
 	maxFormFieldSize = int64(1 * humanize.MiByte)
 
+	// Limit memory allocation to store multipart data
+	maxFormMemory = int64(5 * humanize.MiByte)
+
 	// The maximum allowed difference between the request generation time and the server processing time
 	globalMaxSkewTime = 15 * time.Minute
 )
@@ -82,6 +82,9 @@ var (
 	// Caching is enabled only for RAM size > 8GiB.
 	globalMaxCacheSize = uint64(0)
 
+	// Maximum size of internal objects parts
+	globalPutPartSize = int64(64 * 1024 * 1024)
+
 	// Cache expiry.
 	globalCacheExpiry = objcache.DefaultExpiry
 
@@ -110,15 +113,21 @@ var (
 	// Minio server user agent string.
 	globalServerUserAgent = "Minio/" + ReleaseTag + " (" + runtime.GOOS + "; " + runtime.GOARCH + ")"
 
-	// Access key passed from the environment
-	globalEnvAccessKey = os.Getenv("MINIO_ACCESS_KEY")
-
-	// Secret key passed from the environment
-	globalEnvSecretKey = os.Getenv("MINIO_SECRET_KEY")
+	// Set to true if credentials were passed from env, default is false.
+	globalIsEnvCreds = false
 
 	// url.URL endpoints of disks that belong to the object storage.
 	globalEndpoints = []*url.URL{}
 
+	// Global server's network statistics
+	globalConnStats = newConnStats()
+
+	// Global HTTP request statisitics
+	globalHTTPStats = newHTTPStats()
+
+	// Time when object layer was initialized on start up.
+	globalBootTime time.Time
+
 	// Add new variable global values here.
 )
 

cmd/handler-utils.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"io"
-	"io/ioutil"
 	"mime/multipart"
 	"net/http"
 	"strings"
@@ -158,33 +157,52 @@ func extractMetadataFromForm(formValues map[string]string) map[string]string {
 }
 
 // Extract form fields and file data from a HTTP POST Policy
-func extractPostPolicyFormValues(reader *multipart.Reader) (filePart io.Reader, fileName string, formValues map[string]string, err error) {
+func extractPostPolicyFormValues(form *multipart.Form) (filePart io.ReadCloser, fileName string, fileSize int64, formValues map[string]string, err error) {
 	/// HTML Form values
 	formValues = make(map[string]string)
 	fileName = ""
-	for err == nil {
-		var part *multipart.Part
-		part, err = reader.NextPart()
-		if part != nil {
-			canonicalFormName := http.CanonicalHeaderKey(part.FormName())
-			if canonicalFormName != "File" {
-				var buffer []byte
-				limitReader := io.LimitReader(part, maxFormFieldSize+1)
-				buffer, err = ioutil.ReadAll(limitReader)
-				if err != nil {
-					return nil, "", nil, err
-				}
-				if int64(len(buffer)) > maxFormFieldSize {
-					return nil, "", nil, errSizeUnexpected
-				}
-				formValues[canonicalFormName] = string(buffer)
-			} else {
-				filePart = part
-				fileName = part.FileName()
-				// As described in S3 spec, we expect file to be the last form field
-				break
+
+	// Iterate over form values
+	for k, v := range form.Value {
+		canonicalFormName := http.CanonicalHeaderKey(k)
+		// Check if value's field exceeds S3 limit
+		if int64(len(v[0])) > maxFormFieldSize {
+			return nil, "", 0, nil, traceError(errSizeUnexpected)
+		}
+		// Set the form value
+		formValues[canonicalFormName] = v[0]
+	}
+
+	// Iterator until we find a valid File field and break
+	for k, v := range form.File {
+		canonicalFormName := http.CanonicalHeaderKey(k)
+		if canonicalFormName == "File" {
+			if len(v) == 0 {
+				return nil, "", 0, nil, traceError(errInvalidArgument)
 			}
+			// Fetch fileHeader which has the uploaded file information
+			fileHeader := v[0]
+			// Set filename
+			fileName = fileHeader.Filename
+			// Open the uploaded part
+			filePart, err = fileHeader.Open()
+			if err != nil {
+				return nil, "", 0, nil, traceError(err)
+			}
+			// Compute file size
+			fileSize, err = filePart.(io.Seeker).Seek(0, 2)
+			if err != nil {
+				return nil, "", 0, nil, traceError(err)
+			}
+			// Reset Seek to the beginning
+			_, err = filePart.(io.Seeker).Seek(0, 0)
+			if err != nil {
+				return nil, "", 0, nil, traceError(err)
+			}
+			// File found and ready for reading
+			break
 		}
 	}
-	return filePart, fileName, formValues, nil
+
+	return filePart, fileName, fileSize, formValues, nil
 }

cmd/jwt.go

@@ -38,12 +38,15 @@ const (
 	defaultInterNodeJWTExpiry = 100 * 365 * 24 * time.Hour
 )
 
-var errInvalidAccessKeyLength = errors.New("Invalid access key, access key should be 5 to 20 characters in length")
-var errInvalidSecretKeyLength = errors.New("Invalid secret key, secret key should be 8 to 40 characters in length")
+var (
+	errInvalidAccessKeyLength = errors.New("Invalid access key, access key should be 5 to 20 characters in length")
+	errInvalidSecretKeyLength = errors.New("Invalid secret key, secret key should be 8 to 40 characters in length")
 
-var errInvalidAccessKeyID = errors.New("The access key ID you provided does not exist in our records")
-var errAuthentication = errors.New("Authentication failed, check your access credentials")
-var errNoAuthToken = errors.New("JWT token missing")
+	errInvalidAccessKeyID   = errors.New("The access key ID you provided does not exist in our records")
+	errChangeCredNotAllowed = errors.New("Changing access key and secret key not allowed")
+	errAuthentication       = errors.New("Authentication failed, check your access credentials")
+	errNoAuthToken          = errors.New("JWT token missing")
+)
 
 func authenticateJWT(accessKey, secretKey string, expiry time.Duration) (string, error) {
 	// Trim spaces.
@@ -65,9 +68,15 @@ func authenticateJWT(accessKey, secretKey string, expiry time.Duration) (string,
 
 	// Validate secret key.
 	// Using bcrypt to avoid timing attacks.
-	hashedSecretKey, _ := bcrypt.GenerateFromPassword([]byte(serverCred.SecretKey), bcrypt.DefaultCost)
-	if bcrypt.CompareHashAndPassword(hashedSecretKey, []byte(secretKey)) != nil {
-		return "", errAuthentication
+	if serverCred.secretKeyHash != nil {
+		if bcrypt.CompareHashAndPassword(serverCred.secretKeyHash, []byte(secretKey)) != nil {
+			return "", errAuthentication
+		}
+	} else {
+		// Secret key hash not set then generate and validate.
+		if bcrypt.CompareHashAndPassword(mustGetHashedSecretKey(serverCred.SecretKey), []byte(secretKey)) != nil {
+			return "", errAuthentication
+		}
 	}
 
 	utcNow := time.Now().UTC()
@@ -107,13 +116,13 @@ func isAuthTokenValid(tokenString string) bool {
 }
 
 func isHTTPRequestValid(req *http.Request) bool {
-	return webReqestAuthenticate(req) == nil
+	return webRequestAuthenticate(req) == nil
 }
 
 // Check if the request is authenticated.
 // Returns nil if the request is authenticated. errNoAuthToken if token missing.
 // Returns errAuthentication for all other errors.
-func webReqestAuthenticate(req *http.Request) error {
+func webRequestAuthenticate(req *http.Request) error {
 	jwtToken, err := jwtreq.ParseFromRequest(req, jwtreq.AuthorizationHeaderExtractor, keyFuncCallback)
 	if err != nil {
 		if err == jwtreq.ErrNoTokenInRequest {

cmd/jwt_test.go

@@ -75,10 +75,40 @@ func testAuthenticate(authType string, t *testing.T) {
 	}
 }
 
-func TestNodeAuthenticate(t *testing.T) {
+func TestAuthenticateNode(t *testing.T) {
 	testAuthenticate("node", t)
 }
 
-func TestWebAuthenticate(t *testing.T) {
+func TestAuthenticateWeb(t *testing.T) {
 	testAuthenticate("web", t)
 }
+
+func BenchmarkAuthenticateNode(b *testing.B) {
+	testPath, err := newTestConfig(globalMinioDefaultRegion)
+	if err != nil {
+		b.Fatalf("unable initialize config file, %s", err)
+	}
+	defer removeAll(testPath)
+
+	creds := serverConfig.GetCredential()
+	b.ResetTimer()
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		authenticateNode(creds.AccessKey, creds.SecretKey)
+	}
+}
+
+func BenchmarkAuthenticateWeb(b *testing.B) {
+	testPath, err := newTestConfig(globalMinioDefaultRegion)
+	if err != nil {
+		b.Fatalf("unable initialize config file, %s", err)
+	}
+	defer removeAll(testPath)
+
+	creds := serverConfig.GetCredential()
+	b.ResetTimer()
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		authenticateWeb(creds.AccessKey, creds.SecretKey)
+	}
+}

cmd/lockinfo-handlers.go

@@ -16,10 +16,7 @@
 
 package cmd
 
-import (
-	"strings"
-	"time"
-)
+import "time"
 
 // SystemLockState - Structure to fill the lock state of entire object storage.
 // That is the total locks held, total calls blocked on locks and state of all the locks for the entire system.
@@ -68,8 +65,8 @@ type OpsLockState struct {
 	Duration    time.Duration `json:"duration"` // Duration since the lock was held.
 }
 
-// listLocksInfo - Fetches locks held on bucket, matching prefix older than relTime.
-func listLocksInfo(bucket, prefix string, relTime time.Duration) []VolumeLockInfo {
+// listLocksInfo - Fetches locks held on bucket, matching prefix held for longer than duration.
+func listLocksInfo(bucket, prefix string, duration time.Duration) []VolumeLockInfo {
 	globalNSMutex.lockMapMutex.Lock()
 	defer globalNSMutex.lockMapMutex.Unlock()
 
@@ -82,7 +79,7 @@ func listLocksInfo(bucket, prefix string, relTime time.Duration) []VolumeLockInf
 			continue
 		}
 		// N B empty prefix matches all param.path.
-		if !strings.HasPrefix(param.path, prefix) {
+		if !hasPrefix(param.path, prefix) {
 			continue
 		}
 
@@ -95,11 +92,12 @@ func listLocksInfo(bucket, prefix string, relTime time.Duration) []VolumeLockInf
 		}
 		// Filter locks that are held on bucket, prefix.
 		for opsID, lockInfo := range debugLock.lockInfo {
+			// filter locks that were held for longer than duration.
 			elapsed := timeNow.Sub(lockInfo.since)
-			if elapsed < relTime {
+			if elapsed < duration {
 				continue
 			}
-			// Add locks that are older than relTime.
+			// Add locks that are held for longer than duration.
 			volLockInfo.LockDetailsOnObject = append(volLockInfo.LockDetailsOnObject,
 				OpsLockState{
 					OperationID: opsID,

cmd/lockinfo-handlers_test.go

@@ -45,34 +45,34 @@ func TestListLocksInfo(t *testing.T) {
 	testCases := []struct {
 		bucket   string
 		prefix   string
-		relTime  time.Duration
+		duration time.Duration
 		numLocks int
 	}{
 		// Test 1 - Matches all the locks acquired above.
 		{
 			bucket:   "bucket1",
 			prefix:   "prefix1",
-			relTime:  time.Duration(0 * time.Second),
+			duration: time.Duration(0 * time.Second),
 			numLocks: 20,
 		},
 		// Test 2 - Bucket doesn't match.
 		{
 			bucket:   "bucket",
 			prefix:   "prefix1",
-			relTime:  time.Duration(0 * time.Second),
+			duration: time.Duration(0 * time.Second),
 			numLocks: 0,
 		},
 		// Test 3 - Prefix doesn't match.
 		{
 			bucket:   "bucket1",
 			prefix:   "prefix11",
-			relTime:  time.Duration(0 * time.Second),
+			duration: time.Duration(0 * time.Second),
 			numLocks: 0,
 		},
 	}
 
 	for i, test := range testCases {
-		actual := listLocksInfo(test.bucket, test.prefix, test.relTime)
+		actual := listLocksInfo(test.bucket, test.prefix, test.duration)
 		if len(actual) != test.numLocks {
 			t.Errorf("Test %d - Expected %d locks but observed %d locks",
 				i+1, test.numLocks, len(actual))

cmd/logger-console-hook.go

@@ -26,7 +26,7 @@ type consoleLogger struct {
 
 // enable console logger.
 func enableConsoleLogger() {
-	clogger := serverConfig.GetConsoleLogger()
+	clogger := serverConfig.Logger.GetConsole()
 	if !clogger.Enable {
 		return
 	}

cmd/logger-file-hook.go

@@ -35,7 +35,7 @@ type localFile struct {
 }
 
 func enableFileLogger() {
-	flogger := serverConfig.GetFileLogger()
+	flogger := serverConfig.Logger.GetFile()
 	if !flogger.Enable || flogger.Filename == "" {
 		return
 	}

cmd/logger.go

@@ -39,11 +39,41 @@ var log = struct {
 //   - console [default]
 //   - file
 type logger struct {
+	sync.RWMutex
 	Console consoleLogger `json:"console"`
 	File    fileLogger    `json:"file"`
 	// Add new loggers here.
 }
 
+/// Logger related.
+
+// SetFile set new file logger.
+func (l *logger) SetFile(flogger fileLogger) {
+	l.Lock()
+	defer l.Unlock()
+	l.File = flogger
+}
+
+// GetFileLogger get current file logger.
+func (l *logger) GetFile() fileLogger {
+	l.RLock()
+	defer l.RUnlock()
+	return l.File
+}
+
+// SetConsole set new console logger.
+func (l *logger) SetConsole(clogger consoleLogger) {
+	l.Lock()
+	defer l.Unlock()
+	l.Console = clogger
+}
+
+func (l *logger) GetConsole() consoleLogger {
+	l.RLock()
+	defer l.RUnlock()
+	return l.Console
+}
+
 // Get file, line, function name of the caller.
 func callerSource() string {
 	pc, file, line, success := runtime.Caller(2)

cmd/main.go

@@ -53,24 +53,18 @@ DESCRIPTION:
   {{.Description}}
 
 USAGE:
-  minio {{if .Flags}}[flags] {{end}}command{{if .Flags}}{{end}} [arguments...]
+  minio {{if .VisibleFlags}}[flags] {{end}}command{{if .VisibleFlags}}{{end}} [arguments...]
 
 COMMANDS:
-  {{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
-  {{end}}{{if .Flags}}
+  {{range .VisibleCommands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
+  {{end}}{{if .VisibleFlags}}
 FLAGS:
-  {{range .Flags}}{{.}}
+  {{range .VisibleFlags}}{{.}}
   {{end}}{{end}}
 VERSION:
   ` + Version +
 	`{{ "\n"}}`
 
-// init - check the environment before main starts
-func init() {
-	// Check if minio was compiled using a supported version of Golang.
-	checkGoVersion()
-}
-
 func migrate() {
 	// Migrate config file
 	err := migrateConfig()
@@ -94,7 +88,7 @@ func findClosestCommands(command string) []string {
 	sort.Strings(closestCommands)
 	// Suggest other close commands - allow missed, wrongly added and
 	// even transposed characters
-	for _, value := range commandsTree.walk(commandsTree.root) {
+	for _, value := range commandsTree.Walk(commandsTree.Root()) {
 		if sort.SearchStrings(closestCommands, value.(string)) < len(closestCommands) {
 			continue
 		}
@@ -151,18 +145,40 @@ func checkMainSyntax(c *cli.Context) {
 func checkUpdate() {
 	// Do not print update messages, if quiet flag is set.
 	if !globalQuiet {
-		updateMsg, _, err := getReleaseUpdate(minioUpdateStableURL, 1*time.Second)
+		older, downloadURL, err := getUpdateInfo(1 * time.Second)
 		if err != nil {
-			// Ignore any errors during getReleaseUpdate(), possibly
-			// because of network errors.
+			// Its OK to ignore any errors during getUpdateInfo() here.
 			return
 		}
-		if updateMsg.Update {
-			console.Println(updateMsg)
+		if older > time.Duration(0) {
+			console.Println(colorizeUpdateMessage(downloadURL, older))
 		}
 	}
 }
 
+// Initializes a new config if it doesn't exist, else migrates any old config
+// to newer config and finally loads the config to memory.
+func initConfig() {
+	envCreds := mustGetCredentialFromEnv()
+
+	// Config file does not exist, we create it fresh and return upon success.
+	if !isConfigFileExists() {
+		if err := newConfig(envCreds); err != nil {
+			console.Fatalf("Unable to initialize minio config for the first time. Err: %s.\n", err)
+		}
+		console.Println("Created minio configuration file successfully at " + mustGetConfigPath())
+		return
+	}
+
+	// Migrate any old version of config / state files to newer format.
+	migrate()
+
+	// Once we have migrated all the old config, now load them.
+	if err := loadConfig(envCreds); err != nil {
+		console.Fatalf("Unable to initialize minio config. Err: %s.\n", err)
+	}
+}
+
 // Generic Minio initialization to create/load config, prepare loggers, etc..
 func minioInit(ctx *cli.Context) {
 	// Set global variables after parsing passed arguments
@@ -174,43 +190,19 @@ func minioInit(ctx *cli.Context) {
 	// Is TLS configured?.
 	globalIsSSL = isSSL()
 
-	// Migrate any old version of config / state files to newer format.
-	migrate()
-
-	// Initialize config.
-	configCreated, err := initConfig()
-	if err != nil {
-		console.Fatalf("Unable to initialize minio config. Err: %s.\n", err)
-	}
-	if configCreated {
-		console.Println("Created minio configuration file at " + mustGetConfigPath())
-	}
+	// Initialize minio server config.
+	initConfig()
 
 	// Enable all loggers by now so we can use errorIf() and fatalIf()
 	enableLoggers()
 
-	// Fetch access keys from environment variables and update the config.
-	if globalEnvAccessKey != "" && globalEnvSecretKey != "" {
-		// Set new credentials.
-		serverConfig.SetCredential(credential{
-			AccessKey: globalEnvAccessKey,
-			SecretKey: globalEnvSecretKey,
-		})
-	}
-	if !isAccessKeyValid(serverConfig.GetCredential().AccessKey) {
-		fatalIf(errInvalidArgument, "Invalid access key. Accept only a string starting with a alphabetic and containing from 5 to 20 characters.")
-	}
-	if !isSecretKeyValid(serverConfig.GetCredential().SecretKey) {
-		fatalIf(errInvalidArgument, "Invalid secret key. Accept only a string containing from 8 to 40 characters.")
-	}
-
 	// Init the error tracing module.
 	initError()
 
 }
 
 // Main main for minio server.
-func Main() {
+func Main(args []string, exitFn func(int)) {
 	app := registerApp()
 	app.Before = func(c *cli.Context) error {
 		// Valid input arguments to main.
@@ -224,5 +216,7 @@ func Main() {
 	}
 
 	// Run the app - exit on error.
-	app.RunAndExitOnError()
+	if err := app.Run(args); err != nil {
+		exitFn(1)
+	}
 }

cmd/notifier-config.go

@@ -0,0 +1,228 @@
+/*
+ * Minio Cloud Storage, (C) 2017 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cmd
+
+import "sync"
+
+// Notifier represents collection of supported notification queues.
+type notifier struct {
+	sync.RWMutex
+	AMQP          amqpConfigs          `json:"amqp"`
+	NATS          natsConfigs          `json:"nats"`
+	ElasticSearch elasticSearchConfigs `json:"elasticsearch"`
+	Redis         redisConfigs         `json:"redis"`
+	PostgreSQL    postgreSQLConfigs    `json:"postgresql"`
+	Kafka         kafkaConfigs         `json:"kafka"`
+	Webhook       webhookConfigs       `json:"webhook"`
+	// Add new notification queues.
+}
+
+type amqpConfigs map[string]amqpNotify
+
+func (a amqpConfigs) Clone() amqpConfigs {
+	a2 := make(amqpConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+type natsConfigs map[string]natsNotify
+
+func (a natsConfigs) Clone() natsConfigs {
+	a2 := make(natsConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+type elasticSearchConfigs map[string]elasticSearchNotify
+
+func (a elasticSearchConfigs) Clone() elasticSearchConfigs {
+	a2 := make(elasticSearchConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+type redisConfigs map[string]redisNotify
+
+func (a redisConfigs) Clone() redisConfigs {
+	a2 := make(redisConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+type postgreSQLConfigs map[string]postgreSQLNotify
+
+func (a postgreSQLConfigs) Clone() postgreSQLConfigs {
+	a2 := make(postgreSQLConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+type kafkaConfigs map[string]kafkaNotify
+
+func (a kafkaConfigs) Clone() kafkaConfigs {
+	a2 := make(kafkaConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+type webhookConfigs map[string]webhookNotify
+
+func (a webhookConfigs) Clone() webhookConfigs {
+	a2 := make(webhookConfigs, len(a))
+	for k, v := range a {
+		a2[k] = v
+	}
+	return a2
+}
+
+func (n *notifier) SetAMQPByID(accountID string, amqpn amqpNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.AMQP[accountID] = amqpn
+}
+
+func (n *notifier) GetAMQP() map[string]amqpNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.AMQP.Clone()
+}
+
+func (n *notifier) GetAMQPByID(accountID string) amqpNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.AMQP[accountID]
+}
+
+func (n *notifier) SetNATSByID(accountID string, natsn natsNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.NATS[accountID] = natsn
+}
+
+func (n *notifier) GetNATS() map[string]natsNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.NATS.Clone()
+}
+
+func (n *notifier) GetNATSByID(accountID string) natsNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.NATS[accountID]
+}
+
+func (n *notifier) SetElasticSearchByID(accountID string, es elasticSearchNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.ElasticSearch[accountID] = es
+}
+
+func (n *notifier) GetElasticSearchByID(accountID string) elasticSearchNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.ElasticSearch[accountID]
+}
+
+func (n *notifier) GetElasticSearch() map[string]elasticSearchNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.ElasticSearch.Clone()
+}
+
+func (n *notifier) SetRedisByID(accountID string, r redisNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.Redis[accountID] = r
+}
+
+func (n *notifier) GetRedis() map[string]redisNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.Redis.Clone()
+}
+
+func (n *notifier) GetRedisByID(accountID string) redisNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.Redis[accountID]
+}
+
+func (n *notifier) GetWebhook() map[string]webhookNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.Webhook.Clone()
+}
+
+func (n *notifier) GetWebhookByID(accountID string) webhookNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.Webhook[accountID]
+}
+
+func (n *notifier) SetWebhookByID(accountID string, pgn webhookNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.Webhook[accountID] = pgn
+}
+
+func (n *notifier) SetPostgreSQLByID(accountID string, pgn postgreSQLNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.PostgreSQL[accountID] = pgn
+}
+
+func (n *notifier) GetPostgreSQL() map[string]postgreSQLNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.PostgreSQL.Clone()
+}
+
+func (n *notifier) GetPostgreSQLByID(accountID string) postgreSQLNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.PostgreSQL[accountID]
+}
+
+func (n *notifier) SetKafkaByID(accountID string, kn kafkaNotify) {
+	n.Lock()
+	defer n.Unlock()
+	n.Kafka[accountID] = kn
+}
+
+func (n *notifier) GetKafka() map[string]kafkaNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.Kafka.Clone()
+}
+
+func (n *notifier) GetKafkaByID(accountID string) kafkaNotify {
+	n.RLock()
+	defer n.RUnlock()
+	return n.Kafka[accountID]
+}

cmd/notifier-config_test.go

@@ -1,7 +1,5 @@
-//+build !amd64 noasm appengine
-
 /*
- * Minio Cloud Storage, (C) 2016 Minio, Inc.
+ * Minio Cloud Storage, (C) 2017 Minio, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,8 +14,4 @@
  * limitations under the License.
  */
 
-package blake2b
-
-func compress(d *digest, p []uint8) {
-	compressGeneric(d, p)
-}
+package cmd

cmd/notifiers.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"errors"
-	"strings"
 
 	"github.com/minio/minio/pkg/wildcard"
 )
@@ -55,24 +54,12 @@ const (
 
 var errNotifyNotEnabled = errors.New("requested notifier not enabled")
 
-// Notifier represents collection of supported notification queues.
-type notifier struct {
-	AMQP          map[string]amqpNotify          `json:"amqp"`
-	NATS          map[string]natsNotify          `json:"nats"`
-	ElasticSearch map[string]elasticSearchNotify `json:"elasticsearch"`
-	Redis         map[string]redisNotify         `json:"redis"`
-	PostgreSQL    map[string]postgreSQLNotify    `json:"postgresql"`
-	Kafka         map[string]kafkaNotify         `json:"kafka"`
-	Webhook       map[string]webhookNotify       `json:"webhook"`
-	// Add new notification queues.
-}
-
 // Returns true if queueArn is for an AMQP queue.
 func isAMQPQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypeAMQP {
 		return false
 	}
-	amqpL := serverConfig.GetAMQPNotifyByID(sqsArn.AccountID)
+	amqpL := serverConfig.Notify.GetAMQPByID(sqsArn.AccountID)
 	if !amqpL.Enable {
 		return false
 	}
@@ -91,7 +78,7 @@ func isNATSQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypeNATS {
 		return false
 	}
-	natsL := serverConfig.GetNATSNotifyByID(sqsArn.AccountID)
+	natsL := serverConfig.Notify.GetNATSByID(sqsArn.AccountID)
 	if !natsL.Enable {
 		return false
 	}
@@ -110,7 +97,7 @@ func isWebhookQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypeWebhook {
 		return false
 	}
-	rNotify := serverConfig.GetWebhookNotifyByID(sqsArn.AccountID)
+	rNotify := serverConfig.Notify.GetWebhookByID(sqsArn.AccountID)
 	if !rNotify.Enable {
 		return false
 	}
@@ -122,7 +109,7 @@ func isRedisQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypeRedis {
 		return false
 	}
-	rNotify := serverConfig.GetRedisNotifyByID(sqsArn.AccountID)
+	rNotify := serverConfig.Notify.GetRedisByID(sqsArn.AccountID)
 	if !rNotify.Enable {
 		return false
 	}
@@ -141,7 +128,7 @@ func isElasticQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypeElastic {
 		return false
 	}
-	esNotify := serverConfig.GetElasticSearchNotifyByID(sqsArn.AccountID)
+	esNotify := serverConfig.Notify.GetElasticSearchByID(sqsArn.AccountID)
 	if !esNotify.Enable {
 		return false
 	}
@@ -159,7 +146,7 @@ func isPostgreSQLQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypePostgreSQL {
 		return false
 	}
-	pgNotify := serverConfig.GetPostgreSQLNotifyByID(sqsArn.AccountID)
+	pgNotify := serverConfig.Notify.GetPostgreSQLByID(sqsArn.AccountID)
 	if !pgNotify.Enable {
 		return false
 	}
@@ -177,7 +164,7 @@ func isKafkaQueue(sqsArn arnSQS) bool {
 	if sqsArn.Type != queueTypeKafka {
 		return false
 	}
-	kafkaNotifyCfg := serverConfig.GetKafkaNotifyByID(sqsArn.AccountID)
+	kafkaNotifyCfg := serverConfig.Notify.GetKafkaByID(sqsArn.AccountID)
 	if !kafkaNotifyCfg.Enable {
 		return false
 	}
@@ -206,9 +193,9 @@ func filterRuleMatch(object string, frs []filterRule) bool {
 	var prefixMatch, suffixMatch = true, true
 	for _, fr := range frs {
 		if isValidFilterNamePrefix(fr.Name) {
-			prefixMatch = strings.HasPrefix(object, fr.Value)
+			prefixMatch = hasPrefix(object, fr.Value)
 		} else if isValidFilterNameSuffix(fr.Name) {
-			suffixMatch = strings.HasSuffix(object, fr.Value)
+			suffixMatch = hasSuffix(object, fr.Value)
 		}
 	}
 	return prefixMatch && suffixMatch

cmd/notify-amqp.go

@@ -59,7 +59,7 @@ func dialAMQP(amqpL amqpNotify) (amqpConn, error) {
 }
 
 func newAMQPNotify(accountID string) (*logrus.Logger, error) {
-	amqpL := serverConfig.GetAMQPNotifyByID(accountID)
+	amqpL := serverConfig.Notify.GetAMQPByID(accountID)
 
 	// Connect to amqp server.
 	amqpC, err := dialAMQP(amqpL)

cmd/notify-elasticsearch.go

@@ -55,7 +55,7 @@ func dialElastic(esNotify elasticSearchNotify) (*elastic.Client, error) {
 }
 
 func newElasticNotify(accountID string) (*logrus.Logger, error) {
-	esNotify := serverConfig.GetElasticSearchNotifyByID(accountID)
+	esNotify := serverConfig.Notify.GetElasticSearchByID(accountID)
 
 	// Dial to elastic search.
 	client, err := dialElastic(esNotify)

cmd/notify-kafka.go

@@ -75,7 +75,7 @@ func dialKafka(kn kafkaNotify) (kafkaConn, error) {
 }
 
 func newKafkaNotify(accountID string) (*logrus.Logger, error) {
-	kafkaNotifyCfg := serverConfig.GetKafkaNotifyByID(accountID)
+	kafkaNotifyCfg := serverConfig.Notify.GetKafkaByID(accountID)
 
 	// Try connecting to the configured Kafka broker(s).
 	kc, err := dialKafka(kafkaNotifyCfg)

cmd/notify-nats.go

@@ -127,7 +127,7 @@ func closeNATS(conn natsIOConn) {
 }
 
 func newNATSNotify(accountID string) (*logrus.Logger, error) {
-	natsL := serverConfig.GetNATSNotifyByID(accountID)
+	natsL := serverConfig.Notify.GetNATSByID(accountID)
 
 	// Connect to nats server.
 	natsC, err := dialNATS(natsL, false)

cmd/notify-postgresql.go

@@ -174,7 +174,7 @@ func dialPostgreSQL(pgN postgreSQLNotify) (pgConn, error) {
 }
 
 func newPostgreSQLNotify(accountID string) (*logrus.Logger, error) {
-	pgNotify := serverConfig.GetPostgreSQLNotifyByID(accountID)
+	pgNotify := serverConfig.Notify.GetPostgreSQLByID(accountID)
 
 	// Dial postgres
 	pgC, err := dialPostgreSQL(pgNotify)

cmd/notify-redis.go

@@ -83,7 +83,7 @@ func dialRedis(rNotify redisNotify) (*redis.Pool, error) {
 }
 
 func newRedisNotify(accountID string) (*logrus.Logger, error) {
-	rNotify := serverConfig.GetRedisNotifyByID(accountID)
+	rNotify := serverConfig.Notify.GetRedisByID(accountID)
 
 	// Dial redis.
 	rPool, err := dialRedis(rNotify)

cmd/notify-webhook.go

@@ -52,7 +52,7 @@ func lookupEndpoint(u *url.URL) error {
 
 // Initializes new webhook logrus notifier.
 func newWebhookNotify(accountID string) (*logrus.Logger, error) {
-	rNotify := serverConfig.GetWebhookNotifyByID(accountID)
+	rNotify := serverConfig.Notify.GetWebhookByID(accountID)
 
 	if rNotify.Endpoint == "" {
 		return nil, errInvalidArgument
@@ -119,6 +119,9 @@ func (n httpConn) Fire(entry *logrus.Entry) error {
 		return err
 	}
 
+	// Make sure to close the response body so the connection can be re-used.
+	defer resp.Body.Close()
+
 	if resp.StatusCode != http.StatusOK &&
 		resp.StatusCode != http.StatusAccepted &&
 		resp.StatusCode != http.StatusContinue {

cmd/notify-webhook_test.go

@@ -51,13 +51,13 @@ func TestNewWebHookNotify(t *testing.T) {
 		t.Fatal("Unexpected should fail")
 	}
 
-	serverConfig.SetWebhookNotifyByID("10", webhookNotify{Enable: true, Endpoint: "http://www."})
+	serverConfig.Notify.SetWebhookByID("10", webhookNotify{Enable: true, Endpoint: "http://www."})
 	_, err = newWebhookNotify("10")
 	if err == nil {
 		t.Fatal("Unexpected should fail with lookupHost")
 	}
 
-	serverConfig.SetWebhookNotifyByID("15", webhookNotify{Enable: true, Endpoint: "http://%"})
+	serverConfig.Notify.SetWebhookByID("15", webhookNotify{Enable: true, Endpoint: "http://%"})
 	_, err = newWebhookNotify("15")
 	if err == nil {
 		t.Fatal("Unexpected should fail with invalid URL escape")
@@ -66,7 +66,7 @@ func TestNewWebHookNotify(t *testing.T) {
 	server := httptest.NewServer(postHandler{})
 	defer server.Close()
 
-	serverConfig.SetWebhookNotifyByID("20", webhookNotify{Enable: true, Endpoint: server.URL})
+	serverConfig.Notify.SetWebhookByID("20", webhookNotify{Enable: true, Endpoint: server.URL})
 	webhook, err := newWebhookNotify("20")
 	if err != nil {
 		t.Fatal("Unexpected shouldn't fail", err)

cmd/object-api-common_test.go

@@ -116,8 +116,8 @@ func TestGetPath(t *testing.T) {
 			{"D:\\", "d:\\"},
 			{"D:", "d:"},
 			{"\\", "\\"},
-			{"http://localhost/d:/export", "d:/export"},
-			{"https://localhost/d:/export", "d:/export"},
+			{"http://127.0.0.1/d:/export", "d:/export"},
+			{"https://127.0.0.1/d:/export", "d:/export"},
 		}
 	} else {
 		testCases = []struct {
@@ -125,8 +125,8 @@ func TestGetPath(t *testing.T) {
 			path  string
 		}{
 			{"/export", "/export"},
-			{"http://localhost/export", "/export"},
-			{"https://localhost/export", "/export"},
+			{"http://127.0.0.1/export", "/export"},
+			{"https://127.0.0.1/export", "/export"},
 		}
 	}
 	testCasesCommon := []struct {

cmd/object-api-datatypes.go

@@ -26,8 +26,8 @@ const (
 	Unknown BackendType = iota
 	// Filesystem backend.
 	FS
-	// Multi disk XL (single, distributed) backend.
-	XL
+	// Multi disk Erasure (single, distributed) backend.
+	Erasure
 	// Add your own backend.
 )
 
@@ -39,10 +39,10 @@ type StorageInfo struct {
 	Free int64
 	// Backend type.
 	Backend struct {
-		// Represents various backend types, currently on FS and XL.
+		// Represents various backend types, currently on FS and Erasure.
 		Type BackendType
 
-		// Following fields are only meaningful if BackendType is XL.
+		// Following fields are only meaningful if BackendType is Erasure.
 		OnlineDisks  int // Online disks during server startup.
 		OfflineDisks int // Offline disks during server startup.
 		ReadQuorum   int // Minimum disks required for successful read operations.
@@ -145,7 +145,7 @@ type ListPartsInfo struct {
 	IsTruncated bool
 
 	// List of all parts.
-	Parts []partInfo
+	Parts []PartInfo
 
 	EncodingType string // Not supported yet.
 }
@@ -220,8 +220,8 @@ type ListObjectsInfo struct {
 	Prefixes []string
 }
 
-// partInfo - represents individual part metadata.
-type partInfo struct {
+// PartInfo - represents individual part metadata.
+type PartInfo struct {
 	// Part number that identifies the part. This is a positive integer between
 	// 1 and 10,000.
 	PartNumber int

cmd/object-api-input-checks.go

@@ -16,11 +16,7 @@
 
 package cmd
 
-import (
-	"strings"
-
-	"github.com/skyrings/skyring-common/tools/uuid"
-)
+import "github.com/skyrings/skyring-common/tools/uuid"
 
 // Checks on GetObject arguments, bucket and object.
 func checkGetObjArgs(bucket, object string) error {
@@ -69,7 +65,7 @@ func checkListObjsArgs(bucket, prefix, marker, delimiter string, obj ObjectLayer
 		})
 	}
 	// Verify if marker has prefix.
-	if marker != "" && !strings.HasPrefix(marker, prefix) {
+	if marker != "" && !hasPrefix(marker, prefix) {
 		return traceError(InvalidMarkerPrefixCombination{
 			Marker: marker,
 			Prefix: prefix,
@@ -84,7 +80,7 @@ func checkListMultipartArgs(bucket, prefix, keyMarker, uploadIDMarker, delimiter
 		return err
 	}
 	if uploadIDMarker != "" {
-		if strings.HasSuffix(keyMarker, slashSeparator) {
+		if hasSuffix(keyMarker, slashSeparator) {
 			return traceError(InvalidUploadIDKeyCombination{
 				UploadIDMarker: uploadIDMarker,
 				KeyMarker:      keyMarker,

cmd/object-api-interface.go

@@ -41,7 +41,8 @@ type ObjectLayer interface {
 	// Multipart operations.
 	ListMultipartUploads(bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartsInfo, err error)
 	NewMultipartUpload(bucket, object string, metadata map[string]string) (uploadID string, err error)
-	PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string, sha256sum string) (md5 string, err error)
+	CopyObjectPart(srcBucket, srcObject, destBucket, destObject string, uploadID string, partID int, startOffset int64, length int64) (info PartInfo, err error)
+	PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string, sha256sum string) (info PartInfo, err error)
 	ListObjectParts(bucket, object, uploadID string, partNumberMarker int, maxParts int) (result ListPartsInfo, err error)
 	AbortMultipartUpload(bucket, object, uploadID string) error
 	CompleteMultipartUpload(bucket, object, uploadID string, uploadedParts []completePart) (objInfo ObjectInfo, err error)

cmd/object-api-multipart-common.go

@@ -22,7 +22,6 @@ import (
 	"io/ioutil"
 	"path"
 	"sort"
-	"sync"
 	"time"
 
 	"github.com/minio/minio/pkg/lock"
@@ -76,26 +75,30 @@ func (u *uploadsV1) IsEmpty() bool {
 	return len(u.Uploads) == 0
 }
 
-func (u *uploadsV1) WriteTo(writer io.Writer) (n int64, err error) {
+func (u *uploadsV1) WriteTo(lk *lock.LockedFile) (n int64, err error) {
 	// Serialize to prepare to write to disk.
 	var uplBytes []byte
 	uplBytes, err = json.Marshal(u)
 	if err != nil {
 		return 0, traceError(err)
 	}
-	if err = writer.(*lock.LockedFile).Truncate(0); err != nil {
+	if err = lk.Truncate(0); err != nil {
 		return 0, traceError(err)
 	}
-	_, err = writer.Write(uplBytes)
+	_, err = lk.Write(uplBytes)
 	if err != nil {
 		return 0, traceError(err)
 	}
 	return int64(len(uplBytes)), nil
 }
 
-func (u *uploadsV1) ReadFrom(reader io.Reader) (n int64, err error) {
+func (u *uploadsV1) ReadFrom(lk *lock.LockedFile) (n int64, err error) {
 	var uploadIDBytes []byte
-	uploadIDBytes, err = ioutil.ReadAll(reader)
+	fi, err := lk.Stat()
+	if err != nil {
+		return 0, traceError(err)
+	}
+	uploadIDBytes, err = ioutil.ReadAll(io.NewSectionReader(lk, 0, fi.Size()))
 	if err != nil {
 		return 0, traceError(err)
 	}
@@ -157,45 +160,6 @@ func writeUploadJSON(u *uploadsV1, uploadsPath, tmpPath string, disk StorageAPI)
 	return nil
 }
 
-// Wrapper which removes all the uploaded parts.
-func cleanupUploadedParts(bucket, object, uploadID string, storageDisks ...StorageAPI) error {
-	var errs = make([]error, len(storageDisks))
-	var wg = &sync.WaitGroup{}
-
-	// Construct uploadIDPath.
-	uploadIDPath := path.Join(bucket, object, uploadID)
-
-	// Cleanup uploadID for all disks.
-	for index, disk := range storageDisks {
-		if disk == nil {
-			errs[index] = traceError(errDiskNotFound)
-			continue
-		}
-		wg.Add(1)
-		// Cleanup each uploadID in a routine.
-		go func(index int, disk StorageAPI) {
-			defer wg.Done()
-			err := cleanupDir(disk, minioMetaMultipartBucket, uploadIDPath)
-			if err != nil {
-				errs[index] = err
-				return
-			}
-			errs[index] = nil
-		}(index, disk)
-	}
-
-	// Wait for all the cleanups to finish.
-	wg.Wait()
-
-	// Return first error.
-	for _, err := range errs {
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
 // listMultipartUploadIDs - list all the upload ids from a marker up to 'count'.
 func listMultipartUploadIDs(bucketName, objectName, uploadIDMarker string, count int, disk StorageAPI) ([]uploadMetadata, bool, error) {
 	var uploads []uploadMetadata

cmd/object-api-multipart_test.go

@@ -346,7 +346,7 @@ func testObjectAPIPutObjectPart(obj ObjectLayer, instanceType string, t TestErrH
 
 	// Validate all the test cases.
 	for i, testCase := range testCases {
-		actualMd5Hex, actualErr := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, testCase.intputDataSize, bytes.NewBufferString(testCase.inputReaderData), testCase.inputMd5, testCase.inputSHA256)
+		actualInfo, actualErr := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, testCase.intputDataSize, bytes.NewBufferString(testCase.inputReaderData), testCase.inputMd5, testCase.inputSHA256)
 		// All are test cases above are expected to fail.
 		if actualErr != nil && testCase.shouldPass {
 			t.Errorf("Test %d: %s: Expected to pass, but failed with: <ERROR> %s.", i+1, instanceType, actualErr.Error())
@@ -363,8 +363,8 @@ func testObjectAPIPutObjectPart(obj ObjectLayer, instanceType string, t TestErrH
 		// Test passes as expected, but the output values are verified for correctness here.
 		if actualErr == nil && testCase.shouldPass {
 			// Asserting whether the md5 output is correct.
-			if testCase.inputMd5 != actualMd5Hex {
-				t.Errorf("Test %d: %s: Calculated Md5 different from the actual one %s.", i+1, instanceType, actualMd5Hex)
+			if testCase.inputMd5 != actualInfo.ETag {
+				t.Errorf("Test %d: %s: Calculated Md5 different from the actual one %s.", i+1, instanceType, actualInfo.ETag)
 			}
 		}
 	}
@@ -1344,7 +1344,7 @@ func testListObjectPartsDiskNotFound(obj ObjectLayer, instanceType string, disks
 			Object:   objectNames[0],
 			MaxParts: 10,
 			UploadID: uploadIDs[0],
-			Parts: []partInfo{
+			Parts: []PartInfo{
 				{
 					PartNumber: 1,
 					Size:       4,
@@ -1375,7 +1375,7 @@ func testListObjectPartsDiskNotFound(obj ObjectLayer, instanceType string, disks
 			NextPartNumberMarker: 3,
 			IsTruncated:          true,
 			UploadID:             uploadIDs[0],
-			Parts: []partInfo{
+			Parts: []PartInfo{
 				{
 					PartNumber: 1,
 					Size:       4,
@@ -1400,7 +1400,7 @@ func testListObjectPartsDiskNotFound(obj ObjectLayer, instanceType string, disks
 			MaxParts:    2,
 			IsTruncated: false,
 			UploadID:    uploadIDs[0],
-			Parts: []partInfo{
+			Parts: []PartInfo{
 				{
 					PartNumber: 4,
 					Size:       4,
@@ -1581,7 +1581,7 @@ func testListObjectParts(obj ObjectLayer, instanceType string, t TestErrHandler)
 			Object:   objectNames[0],
 			MaxParts: 10,
 			UploadID: uploadIDs[0],
-			Parts: []partInfo{
+			Parts: []PartInfo{
 				{
 					PartNumber: 1,
 					Size:       4,
@@ -1612,7 +1612,7 @@ func testListObjectParts(obj ObjectLayer, instanceType string, t TestErrHandler)
 			NextPartNumberMarker: 3,
 			IsTruncated:          true,
 			UploadID:             uploadIDs[0],
-			Parts: []partInfo{
+			Parts: []PartInfo{
 				{
 					PartNumber: 1,
 					Size:       4,
@@ -1637,7 +1637,7 @@ func testListObjectParts(obj ObjectLayer, instanceType string, t TestErrHandler)
 			MaxParts:    2,
 			IsTruncated: false,
 			UploadID:    uploadIDs[0],
-			Parts: []partInfo{
+			Parts: []PartInfo{
 				{
 					PartNumber: 4,
 					Size:       4,

cmd/object-api-utils.go

@@ -22,6 +22,7 @@ import (
 	"io"
 	"path"
 	"regexp"
+	"runtime"
 	"strings"
 	"unicode/utf8"
 
@@ -91,10 +92,10 @@ func IsValidObjectName(object string) bool {
 	if len(object) == 0 {
 		return false
 	}
-	if strings.HasSuffix(object, slashSeparator) {
+	if hasSuffix(object, slashSeparator) {
 		return false
 	}
-	if strings.HasPrefix(object, slashSeparator) {
+	if hasPrefix(object, slashSeparator) {
 		return false
 	}
 	return IsValidObjectPrefix(object)
@@ -159,6 +160,26 @@ func getCompleteMultipartMD5(parts []completePart) (string, error) {
 	return s3MD5, nil
 }
 
+// Prefix matcher string matches prefix in a platform specific way.
+// For example on windows since its case insensitive we are supposed
+// to do case insensitive checks.
+func hasPrefix(s string, prefix string) bool {
+	if runtime.GOOS == "windows" {
+		return strings.HasPrefix(strings.ToLower(s), strings.ToLower(prefix))
+	}
+	return strings.HasPrefix(s, prefix)
+}
+
+// Suffix matcher string matches suffix in a platform specific way.
+// For example on windows since its case insensitive we are supposed
+// to do case insensitive checks.
+func hasSuffix(s string, suffix string) bool {
+	if runtime.GOOS == "windows" {
+		return strings.HasSuffix(strings.ToLower(s), strings.ToLower(suffix))
+	}
+	return strings.HasSuffix(s, suffix)
+}
+
 // byBucketName is a collection satisfying sort.Interface.
 type byBucketName []BucketInfo
 

cmd/object-handlers-common.go

@@ -22,6 +22,16 @@ import (
 	"time"
 )
 
+// Validates the preconditions for CopyObjectPart, returns true if CopyObjectPart
+// operation should not proceed. Preconditions supported are:
+//  x-amz-copy-source-if-modified-since
+//  x-amz-copy-source-if-unmodified-since
+//  x-amz-copy-source-if-match
+//  x-amz-copy-source-if-none-match
+func checkCopyObjectPartPreconditions(w http.ResponseWriter, r *http.Request, objInfo ObjectInfo) bool {
+	return checkCopyObjectPreconditions(w, r, objInfo)
+}
+
 // Validates the preconditions for CopyObject, returns true if CopyObject operation should not proceed.
 // Preconditions supported are:
 //  x-amz-copy-source-if-modified-since

cmd/object-handlers.go

@@ -56,10 +56,9 @@ func setGetRespHeaders(w http.ResponseWriter, reqParams url.Values) {
 func errAllowableObjectNotFound(bucket string, r *http.Request) APIErrorCode {
 	if getRequestAuthType(r) == authTypeAnonymous {
 		//we care about the bucket as a whole, not a particular resource
-		url := *r.URL
-		url.Path = "/" + bucket
-
-		if s3Error := enforceBucketPolicy(bucket, "s3:ListBucket", &url); s3Error != ErrNone {
+		resource := "/" + bucket
+		if s3Error := enforceBucketPolicy(bucket, "s3:ListBucket", resource,
+			r.Referer(), r.URL.Query()); s3Error != ErrNone {
 			return ErrAccessDenied
 		}
 	}
@@ -440,7 +439,8 @@ func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Req
 		return
 	case authTypeAnonymous:
 		// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
-		if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
+		if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL.Path,
+			r.Referer(), r.URL.Query()); s3Error != ErrNone {
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}
@@ -531,7 +531,117 @@ func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r
 	writeSuccessResponseXML(w, encodedSuccessResponse)
 }
 
-// PutObjectPartHandler - Upload part
+// CopyObjectPartHandler - uploads a part by copying data from an existing object as data source.
+func (api objectAPIHandlers) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	dstBucket := vars["bucket"]
+	dstObject := vars["object"]
+
+	objectAPI := api.ObjectAPI()
+	if objectAPI == nil {
+		writeErrorResponse(w, ErrServerNotInitialized, r.URL)
+		return
+	}
+
+	if s3Error := checkRequestAuthType(r, dstBucket, "s3:PutObject", serverConfig.GetRegion()); s3Error != ErrNone {
+		writeErrorResponse(w, s3Error, r.URL)
+		return
+	}
+
+	// Copy source path.
+	cpSrcPath, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
+	if err != nil {
+		// Save unescaped string as is.
+		cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
+	}
+
+	srcBucket, srcObject := path2BucketAndObject(cpSrcPath)
+	// If source object is empty or bucket is empty, reply back invalid copy source.
+	if srcObject == "" || srcBucket == "" {
+		writeErrorResponse(w, ErrInvalidCopySource, r.URL)
+		return
+	}
+
+	uploadID := r.URL.Query().Get("uploadId")
+	partIDString := r.URL.Query().Get("partNumber")
+
+	partID, err := strconv.Atoi(partIDString)
+	if err != nil {
+		writeErrorResponse(w, ErrInvalidPart, r.URL)
+		return
+	}
+
+	// check partID with maximum part ID for multipart objects
+	if isMaxPartID(partID) {
+		writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
+		return
+	}
+
+	// Hold read locks on source object only if we are
+	// going to read data from source object.
+	objectSRLock := globalNSMutex.NewNSLock(srcBucket, srcObject)
+	objectSRLock.RLock()
+	defer objectSRLock.RUnlock()
+
+	objInfo, err := objectAPI.GetObjectInfo(srcBucket, srcObject)
+	if err != nil {
+		errorIf(err, "Unable to fetch object info.")
+		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
+		return
+	}
+
+	// Get request range.
+	var hrange *httpRange
+	rangeHeader := r.Header.Get("x-amz-copy-source-range")
+	if rangeHeader != "" {
+		if hrange, err = parseRequestRange(rangeHeader, objInfo.Size); err != nil {
+			// Handle only errInvalidRange
+			// Ignore other parse error and treat it as regular Get request like Amazon S3.
+			if err == errInvalidRange {
+				writeErrorResponse(w, ErrInvalidRange, r.URL)
+				return
+			}
+
+			// log the error.
+			errorIf(err, "Invalid request range")
+		}
+	}
+
+	// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
+	if checkCopyObjectPartPreconditions(w, r, objInfo) {
+		return
+	}
+
+	// Get the object.
+	startOffset := int64(0)
+	length := objInfo.Size
+	if hrange != nil {
+		startOffset = hrange.offsetBegin
+		length = hrange.getLength()
+	}
+
+	/// maximum copy size for multipart objects in a single operation
+	if isMaxObjectSize(length) {
+		writeErrorResponse(w, ErrEntityTooLarge, r.URL)
+		return
+	}
+
+	// Copy source object to destination, if source and destination
+	// object is same then only metadata is updated.
+	partInfo, err := objectAPI.CopyObjectPart(srcBucket, srcObject, dstBucket, dstObject, uploadID, partID, startOffset, length)
+	if err != nil {
+		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
+		return
+	}
+
+	response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
+	encodedSuccessResponse := encodeResponse(response)
+
+	// Write success response.
+	writeSuccessResponseXML(w, encodedSuccessResponse)
+}
+
+// PutObjectPartHandler - uploads an incoming part for an ongoing multipart operation.
 func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	bucket := vars["bucket"]
@@ -590,7 +700,7 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 		return
 	}
 
-	var partMD5 string
+	var partInfo PartInfo
 	incomingMD5 := hex.EncodeToString(md5Bytes)
 	sha256sum := ""
 	switch rAuthType {
@@ -600,12 +710,13 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 		return
 	case authTypeAnonymous:
 		// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
-		if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
+		if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL.Path,
+			r.Referer(), r.URL.Query()); s3Error != ErrNone {
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}
 		// No need to verify signature, anonymous request access is already allowed.
-		partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5, sha256sum)
+		partInfo, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5, sha256sum)
 	case authTypeStreamingSigned:
 		// Initialize stream signature verifier.
 		reader, s3Error := newSignV4ChunkedReader(r)
@@ -614,7 +725,7 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}
-		partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, reader, incomingMD5, sha256sum)
+		partInfo, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, reader, incomingMD5, sha256sum)
 	case authTypeSignedV2, authTypePresignedV2:
 		s3Error := isReqAuthenticatedV2(r)
 		if s3Error != ErrNone {
@@ -622,7 +733,7 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}
-		partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5, sha256sum)
+		partInfo, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5, sha256sum)
 	case authTypePresigned, authTypeSigned:
 		if s3Error := reqSignatureV4Verify(r); s3Error != ErrNone {
 			errorIf(errSignatureMismatch, dumpRequest(r))
@@ -633,7 +744,7 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 		if !skipContentSha256Cksum(r) {
 			sha256sum = r.Header.Get("X-Amz-Content-Sha256")
 		}
-		partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5, sha256sum)
+		partInfo, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5, sha256sum)
 	}
 	if err != nil {
 		errorIf(err, "Unable to create object part.")
@@ -641,8 +752,8 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 		writeErrorResponse(w, toAPIErrorCode(err), r.URL)
 		return
 	}
-	if partMD5 != "" {
-		w.Header().Set("ETag", "\""+partMD5+"\"")
+	if partInfo.ETag != "" {
+		w.Header().Set("ETag", "\""+partInfo.ETag+"\"")
 	}
 
 	writeSuccessResponseHeadersOnly(w)

cmd/object-handlers_test.go

@@ -489,6 +489,20 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			shouldPass:         true,
 		},
 		// Test case - 3
+		// Empty data
+		{
+			bucketName:         bucketName,
+			objectName:         objectName,
+			data:               []byte{},
+			dataLen:            0,
+			chunkSize:          64 * humanize.KiByte,
+			expectedContent:    []byte{},
+			expectedRespStatus: http.StatusOK,
+			accessKey:          credentials.AccessKey,
+			secretKey:          credentials.SecretKey,
+			shouldPass:         true,
+		},
+		// Test case - 4
 		// Invalid access key id.
 		{
 			bucketName:         bucketName,
@@ -502,7 +516,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			secretKey:          "",
 			shouldPass:         false,
 		},
-		// Test case - 4
+		// Test case - 5
 		// Wrong auth header returns as bad request.
 		{
 			bucketName:         bucketName,
@@ -517,7 +531,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			shouldPass:         false,
 			removeAuthHeader:   true,
 		},
-		// Test case - 5
+		// Test case - 6
 		// Large chunk size.. also passes.
 		{
 			bucketName:         bucketName,
@@ -531,7 +545,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			secretKey:          credentials.SecretKey,
 			shouldPass:         false,
 		},
-		// Test case - 6
+		// Test case - 7
 		// Chunk with malformed encoding.
 		{
 			bucketName:         bucketName,
@@ -546,7 +560,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			shouldPass:         false,
 			fault:              malformedEncoding,
 		},
-		// Test case - 7
+		// Test case - 8
 		// Chunk with shorter than advertised chunk data.
 		{
 			bucketName:         bucketName,
@@ -561,7 +575,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			shouldPass:         false,
 			fault:              unexpectedEOF,
 		},
-		// Test case - 8
+		// Test case - 9
 		// Chunk with first chunk data byte tampered.
 		{
 			bucketName:         bucketName,
@@ -576,7 +590,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			shouldPass:         false,
 			fault:              signatureMismatch,
 		},
-		// Test case - 9
+		// Test case - 10
 		// Different date (timestamps) used in seed signature calculation
 		// and chunks signature calculation.
 		{
@@ -592,7 +606,7 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			shouldPass:         false,
 			fault:              chunkDateMismatch,
 		},
-		// Test case - 10
+		// Test case - 11
 		// Set x-amz-decoded-content-length to a value too big to hold in int64.
 		{
 			bucketName:         bucketName,
@@ -669,11 +683,11 @@ func testAPIPutObjectStreamSigV4Handler(obj ObjectLayer, instanceType, bucketNam
 			}
 
 			buffer := new(bytes.Buffer)
-			err = obj.GetObject(testCase.bucketName, testCase.objectName, 0, int64(bytesDataLen), buffer)
+			err = obj.GetObject(testCase.bucketName, testCase.objectName, 0, int64(testCase.dataLen), buffer)
 			if err != nil {
 				t.Fatalf("Test %d: %s: Failed to fetch the copied object: <ERROR> %s", i+1, instanceType, err)
 			}
-			if !bytes.Equal(bytesData, buffer.Bytes()) {
+			if !bytes.Equal(testCase.data, buffer.Bytes()) {
 				t.Errorf("Test %d: %s: Data Mismatch: Data fetched back from the uploaded object doesn't match the original one.", i+1, instanceType)
 			}
 			buffer.Reset()
@@ -918,6 +932,324 @@ func testAPIPutObjectHandler(obj ObjectLayer, instanceType, bucketName string, a
 
 }
 
+// Wrapper for calling Copy Object Part API handler tests for both XL multiple disks and single node setup.
+func TestAPICopyObjectPartHandler(t *testing.T) {
+	defer DetectTestLeak(t)()
+	ExecObjectLayerAPITest(t, testAPICopyObjectPartHandler, []string{"CopyObjectPart"})
+}
+
+func testAPICopyObjectPartHandler(obj ObjectLayer, instanceType, bucketName string, apiRouter http.Handler,
+	credentials credential, t *testing.T) {
+
+	objectName := "test-object"
+	// register event notifier.
+	err := initEventNotifier(obj)
+	if err != nil {
+		t.Fatalf("Initializing event notifiers failed")
+	}
+
+	// set of byte data for PutObject.
+	// object has to be created before running tests for Copy Object.
+	// this is required even to assert the copied object,
+	bytesData := []struct {
+		byteData []byte
+	}{
+		{generateBytesData(6 * humanize.KiByte)},
+	}
+
+	// set of inputs for uploading the objects before tests for downloading is done.
+	putObjectInputs := []struct {
+		bucketName    string
+		objectName    string
+		contentLength int64
+		textData      []byte
+		metaData      map[string]string
+	}{
+		// case - 1.
+		{bucketName, objectName, int64(len(bytesData[0].byteData)), bytesData[0].byteData, make(map[string]string)},
+	}
+	sha256sum := ""
+	// iterate through the above set of inputs and upload the object.
+	for i, input := range putObjectInputs {
+		// uploading the object.
+		_, err = obj.PutObject(input.bucketName, input.objectName, input.contentLength, bytes.NewBuffer(input.textData), input.metaData, sha256sum)
+		// if object upload fails stop the test.
+		if err != nil {
+			t.Fatalf("Put Object case %d:  Error uploading object: <ERROR> %v", i+1, err)
+		}
+	}
+
+	// Initiate Multipart upload for testing PutObjectPartHandler.
+	testObject := "testobject"
+
+	// PutObjectPart API HTTP Handler has to be tested in isolation,
+	// that is without any other handler being registered,
+	// That's why NewMultipartUpload is initiated using ObjectLayer.
+	uploadID, err := obj.NewMultipartUpload(bucketName, testObject, nil)
+	if err != nil {
+		// Failed to create NewMultipartUpload, abort.
+		t.Fatalf("Minio %s : <ERROR>  %s", instanceType, err)
+	}
+
+	// test cases with inputs and expected result for Copy Object.
+	testCases := []struct {
+		bucketName        string
+		copySourceHeader  string // data for "X-Amz-Copy-Source" header. Contains the object to be copied in the URL.
+		copySourceRange   string // data for "X-Amz-Copy-Source-Range" header, contains the byte range offsets of data to be copied.
+		uploadID          string // uploadID of the transaction.
+		invalidPartNumber bool   // Sets an invalid multipart.
+		maximumPartNumber bool   // Sets a maximum parts.
+		accessKey         string
+		secretKey         string
+		// expected output.
+		expectedRespStatus int
+	}{
+		// Test case - 1, copy part 1 from from newObject1, ignore request headers.
+		{
+			bucketName:         bucketName,
+			uploadID:           uploadID,
+			copySourceHeader:   url.QueryEscape("/" + bucketName + "/" + objectName),
+			accessKey:          credentials.AccessKey,
+			secretKey:          credentials.SecretKey,
+			expectedRespStatus: http.StatusOK,
+		},
+
+		// Test case - 2.
+		// Test case with invalid source object.
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/"),
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusBadRequest,
+		},
+
+		// Test case - 3.
+		// Test case with new object name is same as object to be copied.
+		// Fail with file not found.
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + testObject),
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusNotFound,
+		},
+
+		// Test case - 4.
+		// Test case with valid byte range.
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + objectName),
+			copySourceRange:  "bytes=500-4096",
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusOK,
+		},
+
+		// Test case - 5.
+		// Test case with invalid byte range.
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + objectName),
+			copySourceRange:  "bytes=6145-",
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusRequestedRangeNotSatisfiable,
+		},
+
+		// Test case - 6.
+		// Test case with object name missing from source.
+		// fail with BadRequest.
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("//123"),
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusBadRequest,
+		},
+
+		// Test case - 7.
+		// Test case with non-existent source file.
+		// Case for the purpose of failing `api.ObjectAPI.GetObjectInfo`.
+		// Expecting the response status code to http.StatusNotFound (404).
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + "non-existent-object"),
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusNotFound,
+		},
+
+		// Test case - 8.
+		// Test case with non-existent source file.
+		// Case for the purpose of failing `api.ObjectAPI.PutObjectPart`.
+		// Expecting the response status code to http.StatusNotFound (404).
+		{
+			bucketName:       "non-existent-destination-bucket",
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + objectName),
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusNotFound,
+		},
+
+		// Test case - 9.
+		// Case with invalid AccessKey.
+		{
+			bucketName:       bucketName,
+			uploadID:         uploadID,
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + objectName),
+			accessKey:        "Invalid-AccessID",
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusForbidden,
+		},
+
+		// Test case - 10.
+		// Case with non-existent upload id.
+		{
+			bucketName:       bucketName,
+			uploadID:         "-1",
+			copySourceHeader: url.QueryEscape("/" + bucketName + "/" + objectName),
+			accessKey:        credentials.AccessKey,
+			secretKey:        credentials.SecretKey,
+
+			expectedRespStatus: http.StatusNotFound,
+		},
+		// Test case - 11.
+		// invalid part number.
+		{
+			bucketName:         bucketName,
+			uploadID:           uploadID,
+			copySourceHeader:   url.QueryEscape("/" + bucketName + "/" + objectName),
+			invalidPartNumber:  true,
+			accessKey:          credentials.AccessKey,
+			secretKey:          credentials.SecretKey,
+			expectedRespStatus: http.StatusOK,
+		},
+		// Test case - 12.
+		// maximum part number.
+		{
+			bucketName:         bucketName,
+			uploadID:           uploadID,
+			copySourceHeader:   url.QueryEscape("/" + bucketName + "/" + objectName),
+			maximumPartNumber:  true,
+			accessKey:          credentials.AccessKey,
+			secretKey:          credentials.SecretKey,
+			expectedRespStatus: http.StatusOK,
+		},
+	}
+
+	for i, testCase := range testCases {
+		var req *http.Request
+		var reqV2 *http.Request
+		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
+		rec := httptest.NewRecorder()
+		if !testCase.invalidPartNumber || !testCase.maximumPartNumber {
+			// construct HTTP request for copy object.
+			req, err = newTestSignedRequestV4("PUT", getCopyObjectPartURL("", testCase.bucketName, testObject, testCase.uploadID, "1"), 0, nil, testCase.accessKey, testCase.secretKey)
+		} else if testCase.invalidPartNumber {
+			req, err = newTestSignedRequestV4("PUT", getCopyObjectPartURL("", testCase.bucketName, testObject, testCase.uploadID, "abc"), 0, nil, testCase.accessKey, testCase.secretKey)
+		} else if testCase.maximumPartNumber {
+			req, err = newTestSignedRequestV4("PUT", getCopyObjectPartURL("", testCase.bucketName, testObject, testCase.uploadID, "99999"), 0, nil, testCase.accessKey, testCase.secretKey)
+		}
+		if err != nil {
+			t.Fatalf("Test %d: Failed to create HTTP request for copy Object: <ERROR> %v", i+1, err)
+		}
+
+		// "X-Amz-Copy-Source" header contains the information about the source bucket and the object to copied.
+		if testCase.copySourceHeader != "" {
+			req.Header.Set("X-Amz-Copy-Source", testCase.copySourceHeader)
+		}
+		if testCase.copySourceRange != "" {
+			req.Header.Set("X-Amz-Copy-Source-Range", testCase.copySourceRange)
+		}
+		// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
+		// Call the ServeHTTP to execute the handler, `func (api objectAPIHandlers) CopyObjectHandler` handles the request.
+		apiRouter.ServeHTTP(rec, req)
+		// Assert the response code with the expected status.
+		if rec.Code != testCase.expectedRespStatus {
+			t.Fatalf("Test %d: %s:  Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, rec.Code)
+		}
+		if rec.Code == http.StatusOK {
+			// See if the new part has been uploaded.
+			// testing whether the copy was successful.
+			var results ListPartsInfo
+			results, err = obj.ListObjectParts(testCase.bucketName, testObject, testCase.uploadID, 0, 1)
+			if err != nil {
+				t.Fatalf("Test %d: %s: Failed to look for copied object part: <ERROR> %s", i+1, instanceType, err)
+			}
+			if len(results.Parts) != 1 {
+				t.Fatalf("Test %d: %s: Expected only one entry returned %d entries", i+1, instanceType, len(results.Parts))
+			}
+		}
+
+		// Verify response of the V2 signed HTTP request.
+		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
+		recV2 := httptest.NewRecorder()
+
+		reqV2, err = newTestRequest("PUT", getCopyObjectPartURL("", testCase.bucketName, testObject, testCase.uploadID, "1"), 0, nil)
+		if err != nil {
+			t.Fatalf("Test %d: Failed to create HTTP request for copy Object: <ERROR> %v", i+1, err)
+		}
+		// "X-Amz-Copy-Source" header contains the information about the source bucket and the object to copied.
+		if testCase.copySourceHeader != "" {
+			reqV2.Header.Set("X-Amz-Copy-Source", testCase.copySourceHeader)
+		}
+		if testCase.copySourceRange != "" {
+			reqV2.Header.Set("X-Amz-Copy-Source-Range", testCase.copySourceRange)
+		}
+
+		err = signRequestV2(reqV2, testCase.accessKey, testCase.secretKey)
+		if err != nil {
+			t.Fatalf("Failed to V2 Sign the HTTP request: %v.", err)
+		}
+
+		// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
+		// Call the ServeHTTP to execute the handler.
+		apiRouter.ServeHTTP(recV2, reqV2)
+		if recV2.Code != testCase.expectedRespStatus {
+			t.Errorf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, recV2.Code)
+		}
+	}
+
+	// HTTP request for testing when `ObjectLayer` is set to `nil`.
+	// There is no need to use an existing bucket and valid input for creating the request
+	// since the `objectLayer==nil`  check is performed before any other checks inside the handlers.
+	// The only aim is to generate an HTTP request in a way that the relevant/registered end point is evoked/called.
+	nilBucket := "dummy-bucket"
+	nilObject := "dummy-object"
+
+	nilReq, err := newTestSignedRequestV4("PUT", getCopyObjectPartURL("", nilBucket, nilObject, "0", "0"),
+		0, bytes.NewReader([]byte("testNilObjLayer")), "", "")
+	if err != nil {
+		t.Errorf("Minio %s: Failed to create http request for testing the response when object Layer is set to `nil`.", instanceType)
+	}
+
+	// Below is how CopyObjectPartHandler is registered.
+	// bucket.Methods("PUT").Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", ".*?(\\/|%2F).*?").HandlerFunc(api.CopyObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
+	// Its necessary to set the "X-Amz-Copy-Source" header for the request to be accepted by the handler.
+	nilReq.Header.Set("X-Amz-Copy-Source", url.QueryEscape("/"+nilBucket+"/"+nilObject))
+
+	// execute the object layer set to `nil` test.
+	// `ExecObjectLayerAPINilTest` manages the operation.
+	ExecObjectLayerAPINilTest(t, nilBucket, nilObject, instanceType, apiRouter, nilReq)
+
+}
+
 // Wrapper for calling Copy Object API handler tests for both XL multiple disks and single node setup.
 func TestAPICopyObjectHandler(t *testing.T) {
 	defer DetectTestLeak(t)()

cmd/object_api_suite_test.go

@@ -106,15 +106,18 @@ func testMultipartObjectCreation(obj ObjectLayer, instanceType string, c TestErr
 	for i := 1; i <= 10; i++ {
 		expectedMD5Sumhex := getMD5Hash(data)
 
-		var calculatedMD5sum string
-		calculatedMD5sum, err = obj.PutObjectPart("bucket", "key", uploadID, i, int64(len(data)), bytes.NewBuffer(data), expectedMD5Sumhex, "")
+		var calcPartInfo PartInfo
+		calcPartInfo, err = obj.PutObjectPart("bucket", "key", uploadID, i, int64(len(data)), bytes.NewBuffer(data), expectedMD5Sumhex, "")
 		if err != nil {
 			c.Errorf("%s: <ERROR> %s", instanceType, err)
 		}
-		if calculatedMD5sum != expectedMD5Sumhex {
+		if calcPartInfo.ETag != expectedMD5Sumhex {
 			c.Errorf("MD5 Mismatch")
 		}
-		completedParts.Parts = append(completedParts.Parts, completePart{PartNumber: i, ETag: calculatedMD5sum})
+		completedParts.Parts = append(completedParts.Parts, completePart{
+			PartNumber: i,
+			ETag:       calcPartInfo.ETag,
+		})
 	}
 	objInfo, err := obj.CompleteMultipartUpload("bucket", "key", uploadID, completedParts.Parts)
 	if err != nil {
@@ -153,12 +156,12 @@ func testMultipartObjectAbort(obj ObjectLayer, instanceType string, c TestErrHan
 		expectedMD5Sumhex := getMD5Hash([]byte(randomString))
 
 		metadata["md5"] = expectedMD5Sumhex
-		var calculatedMD5sum string
-		calculatedMD5sum, err = obj.PutObjectPart("bucket", "key", uploadID, i, int64(len(randomString)), bytes.NewBufferString(randomString), expectedMD5Sumhex, "")
+		var calcPartInfo PartInfo
+		calcPartInfo, err = obj.PutObjectPart("bucket", "key", uploadID, i, int64(len(randomString)), bytes.NewBufferString(randomString), expectedMD5Sumhex, "")
 		if err != nil {
 			c.Fatalf("%s: <ERROR> %s", instanceType, err)
 		}
-		if calculatedMD5sum != expectedMD5Sumhex {
+		if calcPartInfo.ETag != expectedMD5Sumhex {
 			c.Errorf("Md5 Mismatch")
 		}
 		parts[i] = expectedMD5Sumhex

cmd/posix-list-dir-nix.go

@@ -1,4 +1,4 @@
-// +build linux darwin dragonfly freebsd netbsd openbsd
+// +build linux darwin freebsd netbsd openbsd
 
 /*
  * Minio Cloud Storage, (C) 2016 Minio, Inc.
@@ -68,10 +68,6 @@ func parseDirents(dirPath string, buf []byte) (entries []string, err error) {
 		if name == "." || name == ".." {
 			continue
 		}
-		// Skip special files.
-		if hasPosixReservedPrefix(name) {
-			continue
-		}
 
 		switch dirent.Type {
 		case syscall.DT_DIR:

cmd/posix-list-dir-others.go

@@ -1,4 +1,4 @@
-// +build !linux,!darwin,!openbsd,!freebsd,!netbsd,!dragonfly
+// +build !linux,!darwin,!openbsd,!freebsd,!netbsd
 
 /*
  * Minio Cloud Storage, (C) 2016 Minio, Inc.
@@ -52,10 +52,6 @@ func readDir(dirPath string) (entries []string, err error) {
 			return nil, err
 		}
 		for _, fi := range fis {
-			// Skip special files, if found.
-			if hasPosixReservedPrefix(fi.Name()) {
-				continue
-			}
 			// Stat symbolic link and follow to get the final value.
 			if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
 				var st os.FileInfo

cmd/posix-list-dir_test.go

@@ -69,26 +69,6 @@ func setupTestReadDirEmpty(t *testing.T) (testResults []result) {
 	return testResults
 }
 
-// Test to read empty directory with only reserved names.
-func setupTestReadDirReserved(t *testing.T) (testResults []result) {
-	dir := mustSetupDir(t)
-	entries := []string{}
-	// Create a file with reserved name.
-	for _, reservedName := range posixReservedPrefix {
-		if err := ioutil.WriteFile(filepath.Join(dir, reservedName), []byte{}, os.ModePerm); err != nil {
-			// For cleanup, its required to add these entries into test results.
-			testResults = append(testResults, result{dir, entries})
-			t.Fatalf("Unable to create file, %s", err)
-		}
-		// entries = append(entries, reservedName) - reserved files are skipped.
-	}
-	sort.Strings(entries)
-
-	// Add entries slice for this test directory.
-	testResults = append(testResults, result{dir, entries})
-	return testResults
-}
-
 // Test to read non-empty directory with only files.
 func setupTestReadDirFiles(t *testing.T) (testResults []result) {
 	dir := mustSetupDir(t)
@@ -198,8 +178,6 @@ func TestReadDir(t *testing.T) {
 
 	// Setup and capture test results for empty directory.
 	testResults = append(testResults, setupTestReadDirEmpty(t)...)
-	// Setup and capture test results for reserved files.
-	testResults = append(testResults, setupTestReadDirReserved(t)...)
 	// Setup and capture test results for directory with only files.
 	testResults = append(testResults, setupTestReadDirFiles(t)...)
 	// Setup and capture test results for directory with files and directories.

cmd/posix-utils_nix.go

@@ -1,7 +1,7 @@
-// +build linux darwin dragonfly freebsd netbsd openbsd
+// +build linux darwin dragonfly freebsd netbsd openbsd solaris
 
 /*
- * Minio Cloud Storage, (C) 2016 Minio, Inc.
+ * Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

cmd/posix.go

@@ -153,11 +153,20 @@ func getDiskInfo(diskPath string) (di disk.Info, err error) {
 	return di, err
 }
 
+// List of operating systems where we ignore disk space
+// verification.
+var ignoreDiskFreeOS = []string{
+	globalWindowsOSName,
+	globalNetBSDOSName,
+	globalSolarisOSName,
+}
+
 // checkDiskFree verifies if disk path has sufficient minimum free disk space and files.
 func (s *posix) checkDiskFree() (err error) {
 	// We don't validate disk space or inode utilization on windows.
 	// Each windows calls to 'GetVolumeInformationW' takes around 3-5seconds.
-	if runtime.GOOS == globalWindowsOSName {
+	// And StatFS is not supported by Go for solaris and netbsd.
+	if contains(ignoreDiskFreeOS, runtime.GOOS) {
 		return nil
 	}
 

cmd/post-policy_test.go

@@ -342,46 +342,66 @@ func testPostPolicyBucketHandler(obj ObjectLayer, instanceType string, t TestErr
 	}
 
 	testCases2 := []struct {
-		objectName         string
-		data               []byte
-		expectedRespStatus int
-		accessKey          string
-		secretKey          string
-		malformedBody      bool
+		objectName          string
+		data                []byte
+		expectedRespStatus  int
+		accessKey           string
+		secretKey           string
+		malformedBody       bool
+		ignoreContentLength bool
 	}{
 		// Success case.
 		{
-			objectName:         "test",
-			data:               bytes.Repeat([]byte("a"), 1025),
-			expectedRespStatus: http.StatusNoContent,
-			accessKey:          credentials.AccessKey,
-			secretKey:          credentials.SecretKey,
-			malformedBody:      false,
+			objectName:          "test",
+			data:                bytes.Repeat([]byte("a"), 1025),
+			expectedRespStatus:  http.StatusNoContent,
+			accessKey:           credentials.AccessKey,
+			secretKey:           credentials.SecretKey,
+			malformedBody:       false,
+			ignoreContentLength: false,
+		},
+		// Failed with Content-Length not specified.
+		{
+			objectName:          "test",
+			data:                bytes.Repeat([]byte("a"), 1025),
+			expectedRespStatus:  http.StatusNoContent,
+			accessKey:           credentials.AccessKey,
+			secretKey:           credentials.SecretKey,
+			malformedBody:       false,
+			ignoreContentLength: true,
 		},
 		// Failed with entity too small.
 		{
-			objectName:         "test",
-			data:               bytes.Repeat([]byte("a"), 1023),
-			expectedRespStatus: http.StatusBadRequest,
-			accessKey:          credentials.AccessKey,
-			secretKey:          credentials.SecretKey,
-			malformedBody:      false,
+			objectName:          "test",
+			data:                bytes.Repeat([]byte("a"), 1023),
+			expectedRespStatus:  http.StatusBadRequest,
+			accessKey:           credentials.AccessKey,
+			secretKey:           credentials.SecretKey,
+			malformedBody:       false,
+			ignoreContentLength: false,
 		},
 		// Failed with entity too large.
 		{
-			objectName:         "test",
-			data:               bytes.Repeat([]byte("a"), (1*humanize.MiByte)+1),
-			expectedRespStatus: http.StatusBadRequest,
-			accessKey:          credentials.AccessKey,
-			secretKey:          credentials.SecretKey,
-			malformedBody:      false,
+			objectName:          "test",
+			data:                bytes.Repeat([]byte("a"), (1*humanize.MiByte)+1),
+			expectedRespStatus:  http.StatusBadRequest,
+			accessKey:           credentials.AccessKey,
+			secretKey:           credentials.SecretKey,
+			malformedBody:       false,
+			ignoreContentLength: false,
 		},
 	}
 
 	for i, testCase := range testCases2 {
 		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
 		rec := httptest.NewRecorder()
-		req, perr := newPostRequestV4WithContentLength("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
+		var req *http.Request
+		var perr error
+		if testCase.ignoreContentLength {
+			req, perr = newPostRequestV4("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
+		} else {
+			req, perr = newPostRequestV4WithContentLength("", bucketName, testCase.objectName, testCase.data, testCase.accessKey, testCase.secretKey)
+		}
 		if perr != nil {
 			t.Fatalf("Test %d: %s: Failed to create HTTP request for PostPolicyHandler: <ERROR> %v", i+1, instanceType, perr)
 		}

cmd/prepare-storage.go

@@ -198,10 +198,11 @@ func retryFormattingXLDisks(firstDisk bool, endpoints []*url.URL, storageDisks [
 		return errInvalidArgument
 	}
 
-	// Create a done channel to control 'ListObjects' go routine.
-	doneCh := make(chan struct{}, 1)
+	// Done channel is used to close any lingering retry routine, as soon
+	// as this function returns.
+	doneCh := make(chan struct{})
 
-	// Indicate to our routine to exit cleanly upon return.
+	// Indicate to our retry routine to exit cleanly, upon this function return.
 	defer close(doneCh)
 
 	// prepare getElapsedTime() to calculate elapsed time since we started trying formatting disks.
@@ -212,7 +213,7 @@ func retryFormattingXLDisks(firstDisk bool, endpoints []*url.URL, storageDisks [
 	}
 
 	// Wait on the jitter retry loop.
-	retryTimerCh := newRetryTimer(time.Second, time.Second*30, MaxJitter, doneCh)
+	retryTimerCh := newRetryTimerSimple(doneCh)
 	for {
 		select {
 		case retryCount := <-retryTimerCh: