2 /* -----------------------------------------------------------------------
3 * <copyright file="PithosMonitor.cs" company="GRNet">
5 * Copyright 2011-2012 GRNET S.A. All rights reserved.
7 * Redistribution and use in source and binary forms, with or
8 * without modification, are permitted provided that the following
11 * 1. Redistributions of source code must retain the above
12 * copyright notice, this list of conditions and the following
15 * 2. Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials
18 * provided with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
25 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
34 * The views and conclusions contained in the software and
35 * documentation are those of the authors and should not be
36 * interpreted as representing official policies, either expressed
37 * or implied, of GRNET S.A.
39 * -----------------------------------------------------------------------
43 using System.Collections.Generic;
44 using System.ComponentModel.Composition;
45 using System.Diagnostics.Contracts;
48 using System.Reflection;
49 using System.Threading;
50 using System.Threading.Tasks;
51 using Pithos.Core.Agents;
52 using Pithos.Interfaces;
58 [Export(typeof(PithosMonitor))]
59 public class PithosMonitor:IDisposable
61 private static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
63 private int _blockSize;
64 private string _blockHash;
67 public IPithosSettings Settings{get;set;}
69 private IStatusKeeper _statusKeeper;
72 public IStatusKeeper StatusKeeper
74 get { return _statusKeeper; }
77 _statusKeeper = value;
78 FileAgent.StatusKeeper = value;
85 private IPithosWorkflow _workflow;
88 public IPithosWorkflow Workflow
90 get { return _workflow; }
94 FileAgent.Workflow = value;
98 public ICloudClient CloudClient { get; set; }
100 public IStatusNotification StatusNotification { get; set; }
103 public FileAgent FileAgent { get; private set; }
106 private WorkflowAgent _workflowAgent;
109 public WorkflowAgent WorkflowAgent
111 get { return _workflowAgent; }
114 _workflowAgent = value;
115 //FileAgent.WorkflowAgent = value;
121 public NetworkAgent NetworkAgent { get; set; }
123 private PollAgent _pollAgent;
126 public PollAgent PollAgent
128 get { return _pollAgent; }
132 FileAgent.PollAgent = value;
136 private Selectives _selectives;
139 public Selectives Selectives
141 get { return _selectives; }
145 FileAgent.Selectives = value;
149 public string UserName { get; set; }
150 private string _apiKey;
153 get { return _apiKey; }
157 if (_accountInfo != null)
158 _accountInfo.Token = value;
162 private AccountInfo _accountInfo;
164 public AccountInfo Account
166 get { return _accountInfo; }
173 public bool Pause { get; set; }
176 get { return FileAgent.Pause; }
179 FileAgent.Pause = value;
183 private string _rootPath;
184 public string RootPath
186 get { return _rootPath; }
189 _rootPath = String.IsNullOrWhiteSpace(value)
196 CancellationTokenSource _cancellationSource;
198 public PithosMonitor()
200 FileAgent = new FileAgent();
202 private bool _started;
206 if (String.IsNullOrWhiteSpace(ApiKey))
207 throw new InvalidOperationException("The ApiKey is empty");
208 if (String.IsNullOrWhiteSpace(UserName))
209 throw new InvalidOperationException("The UserName is empty");
210 if (String.IsNullOrWhiteSpace(AuthenticationUrl))
211 throw new InvalidOperationException("The Authentication url is empty");
212 Contract.EndContractBlock();
214 //If the account doesn't have a valid path, don't start monitoring but don't throw either
215 if (String.IsNullOrWhiteSpace(RootPath))
219 //WorkflowAgent.StatusNotification = StatusNotification;
221 StatusNotification.NotifyChange("Starting");
224 if (!_cancellationSource.IsCancellationRequested)
227 _cancellationSource = new CancellationTokenSource();
231 CloudClient = new CloudFilesClient(UserName, ApiKey)
232 {UsePithos = true, AuthenticationUrl = AuthenticationUrl};
233 _accountInfo = CloudClient.Authenticate();
235 _accountInfo.SiteUri = AuthenticationUrl;
236 _accountInfo.AccountPath = RootPath;
239 var pithosFolder = Path.Combine(RootPath, FolderConstants.PithosContainer);
240 if (!Directory.Exists(pithosFolder))
241 Directory.CreateDirectory(pithosFolder);
242 //Create the cache folder and ensure it is hidden
243 CreateHiddenFolder(RootPath, FolderConstants.CacheFolder);
245 var policy=CloudClient.GetAccountPolicies(_accountInfo);
247 StatusNotification.NotifyAccount(policy);
248 EnsurePithosContainers();
250 StatusKeeper.BlockHash = _blockHash;
251 StatusKeeper.BlockSize = _blockSize;
253 StatusKeeper.StartProcessing(_cancellationSource.Token);
255 //Extract the URIs from the string collection
256 var settings = Settings.Accounts.First(s => s.AccountKey == _accountInfo.AccountKey );
258 var selectiveUrls=settings.SelectiveFolders.Cast<string>().Select(url => new Uri(url,UriKind.RelativeOrAbsolute))
259 .Where(uri=>uri.IsAbsoluteUri).ToArray();
261 SetSelectivePaths(selectiveUrls,null,null);
267 //WorkflowAgent.RestartInterruptedFiles(_accountInfo);
271 private void EnsurePithosContainers()
274 //Create the two default containers if they are missing
275 var pithosContainers = new List<string>{ FolderConstants.TrashContainer,FolderConstants.PithosContainer};
276 foreach (var container in pithosContainers)
278 var info=CloudClient.GetContainerInfo(UserName, container);
279 if (info == ContainerInfo.Empty)
281 CloudClient.CreateContainer(UserName, container);
282 info = CloudClient.GetContainerInfo(UserName, container);
284 _blockSize = info.BlockSize;
285 _blockHash = info.BlockHash;
286 _accountInfo.BlockSize = _blockSize;
287 _accountInfo.BlockHash = _blockHash;
291 public string AuthenticationUrl { get; set; }
293 private void IndexLocalFiles()
295 using (ThreadContext.Stacks["Operation"].Push("Indexing local files"))
300 //StatusNotification.NotifyChange("Indexing Local Files");
301 Log.Info("Start local indexing");
302 StatusNotification.SetPithosStatus(PithosStatus.LocalSyncing,"Indexing Local Files");
304 var cachePath = Path.Combine(RootPath, FolderConstants.CacheFolder);
305 var directory = new DirectoryInfo(RootPath);
307 from file in directory.EnumerateFiles("*", SearchOption.AllDirectories)
308 where !file.FullName.StartsWith(cachePath, StringComparison.InvariantCultureIgnoreCase) &&
309 !file.Extension.Equals("ignore", StringComparison.InvariantCultureIgnoreCase)
311 StatusKeeper.ProcessExistingFiles(files);
314 catch (Exception exc)
316 Log.Error("[ERROR]", exc);
322 StatusNotification.SetPithosStatus(PithosStatus.LocalComplete,"Indexing Completed");
330 /* private void StartWorkflowAgent()
332 WorkflowAgent.StatusNotification = StatusNotification;
334 /* //On Vista and up we can check for a network connection
335 bool connected=Environment.OSVersion.Version.Major < 6 || NetworkListManager.IsConnectedToInternet;
336 //If we are not connected retry later
339 Task.Factory.StartNewDelayed(10000, StartWorkflowAgent);
345 WorkflowAgent.Start();
349 //Faild to authenticate due to network or account error
350 //Retry after a while
351 Task.Factory.StartNewDelayed(10000, StartWorkflowAgent);
356 private void StartNetworkAgent()
358 NetworkAgent.StatusNotification = StatusNotification;
360 //TODO: The Network and Poll agents are not account specific
361 //They should be moved outside PithosMonitor
363 NetworkAgent.Start();
366 PollAgent.AddAccount(_accountInfo);
368 PollAgent.StatusNotification = StatusNotification;
370 PollAgent.PollRemoteFiles();
373 //Make sure a hidden cache folder exists to store partial downloads
374 private static void CreateHiddenFolder(string rootPath, string folderName)
376 if (String.IsNullOrWhiteSpace(rootPath))
377 throw new ArgumentNullException("rootPath");
378 if (!Path.IsPathRooted(rootPath))
379 throw new ArgumentException("rootPath");
380 if (String.IsNullOrWhiteSpace(folderName))
381 throw new ArgumentNullException("folderName");
382 Contract.EndContractBlock();
384 var folder = Path.Combine(rootPath, folderName);
385 if (!Directory.Exists(folder))
387 var info = Directory.CreateDirectory(folder);
388 info.Attributes |= FileAttributes.Hidden;
390 Log.InfoFormat("Created cache Folder: {0}", folder);
394 var info = new DirectoryInfo(folder);
395 if ((info.Attributes & FileAttributes.Hidden) == 0)
397 info.Attributes |= FileAttributes.Hidden;
398 Log.InfoFormat("Reset cache folder to hidden: {0}", folder);
406 private void StartWatcherAgent()
408 if (Log.IsDebugEnabled)
409 Log.DebugFormat("Start Folder Monitoring [{0}]",RootPath);
411 AgentLocator<FileAgent>.Register(FileAgent,RootPath);
413 FileAgent.IdleTimeout = Settings.FileIdleTimeout;
414 FileAgent.StatusKeeper = StatusKeeper;
415 FileAgent.StatusNotification = StatusNotification;
416 FileAgent.Workflow = Workflow;
417 FileAgent.CachePath = Path.Combine(RootPath, FolderConstants.CacheFolder);
418 FileAgent.Start(_accountInfo, RootPath);
424 AgentLocator<FileAgent>.Remove(RootPath);
438 public void Dispose()
441 GC.SuppressFinalize(this);
444 protected virtual void Dispose(bool disposing)
453 public void MoveFileStates(string oldPath, string newPath)
455 if (String.IsNullOrWhiteSpace(oldPath))
456 throw new ArgumentNullException("oldPath");
457 if (!Path.IsPathRooted(oldPath))
458 throw new ArgumentException("oldPath must be an absolute path","oldPath");
459 if (string.IsNullOrWhiteSpace(newPath))
460 throw new ArgumentNullException("newPath");
461 if (!Path.IsPathRooted(newPath))
462 throw new ArgumentException("newPath must be an absolute path","newPath");
463 Contract.EndContractBlock();
465 StatusKeeper.ChangeRoots(oldPath, newPath);
468 public void SetSelectivePaths(Uri[] uris,Uri[] added, Uri[] removed)
470 //Convert the uris to paths
471 var selectivePaths = UrisToFilePaths(uris);
473 var selectiveUri = uris.ToList();
474 this.Selectives.SetSelectedUris(_accountInfo,selectiveUri);
476 var removedPaths = UrisToFilePaths(removed);
477 UnversionSelectivePaths(removedPaths);
482 /// Mark all unselected paths as Unversioned
484 /// <param name="removed"></param>
485 private void UnversionSelectivePaths(List<string> removed)
490 //Ensure we remove any file state below the deleted folders
491 FileState.UnversionPaths(removed);
496 /// Return a list of absolute filepaths from a list of Uris
498 /// <param name="uris"></param>
499 /// <returns></returns>
500 private List<string> UrisToFilePaths(IEnumerable<Uri> uris)
503 return new List<string>();
505 var own = (from uri in uris
506 where uri.ToString().StartsWith(_accountInfo.StorageUri.ToString())
507 let relativePath = _accountInfo.StorageUri.MakeRelativeUri(uri).RelativeUriToFilePath()
508 //Trim the account name
509 select Path.Combine(RootPath, relativePath.After(_accountInfo.UserName + '\\'))).ToList();
510 var others= (from uri in uris
511 where !uri.ToString().StartsWith(_accountInfo.StorageUri.ToString())
512 let relativePath = _accountInfo.StorageUri.MakeRelativeUri(uri).RelativeUriToFilePath()
513 //Trim the account name
514 select Path.Combine(RootPath,"others-shared", relativePath)).ToList();
515 return own.Union(others).ToList();
519 public ObjectInfo GetObjectInfo(string filePath)
521 if (String.IsNullOrWhiteSpace(filePath))
522 throw new ArgumentNullException("filePath");
523 Contract.EndContractBlock();
525 var file=new FileInfo(filePath);
526 string relativeUrl;//=file.AsRelativeUrlTo(this.RootPath);
527 var relativePath = file.AsRelativeTo(RootPath);
529 string accountName,container;
531 var parts=relativePath.Split('\\');
533 var accountInfo = _accountInfo;
534 if (relativePath.StartsWith(FolderConstants.OthersFolder))
536 accountName = parts[1];
537 container = parts[2];
538 relativeUrl = String.Join("/", parts.Splice(3));
539 //Create the root URL for the target account
540 var oldName = UserName;
541 var absoluteUri = _accountInfo.StorageUri.AbsoluteUri;
542 var nameIndex=absoluteUri.IndexOf(oldName, StringComparison.Ordinal);
543 var root=absoluteUri.Substring(0, nameIndex);
545 accountInfo = new AccountInfo
547 UserName = accountName,
548 AccountPath = Path.Combine(accountInfo.AccountPath, parts[0], parts[1]),
549 StorageUri = new Uri(root + accountName),
550 BlockHash=accountInfo.BlockHash,
551 BlockSize=accountInfo.BlockSize,
552 Token=accountInfo.Token
557 accountName = UserName;
558 container = parts[0];
559 relativeUrl = String.Join("/", parts.Splice(1));
562 var client = new CloudFilesClient(accountInfo);
563 var objectInfo=client.GetObjectInfo(accountName, container, relativeUrl);
567 public Task<ContainerInfo> GetContainerInfo(string filePath)
569 if (String.IsNullOrWhiteSpace(filePath))
570 throw new ArgumentNullException("filePath");
571 Contract.EndContractBlock();
573 var file=new FileInfo(filePath);
574 var relativePath = file.AsRelativeTo(RootPath);
576 string accountName,container;
578 var parts=relativePath.Split('\\');
580 var accountInfo = _accountInfo;
581 if (relativePath.StartsWith(FolderConstants.OthersFolder))
583 accountName = parts[1];
584 container = parts[2];
585 //Create the root URL for the target account
586 var oldName = UserName;
587 var absoluteUri = _accountInfo.StorageUri.AbsoluteUri;
588 var nameIndex=absoluteUri.IndexOf(oldName, StringComparison.Ordinal);
589 var root=absoluteUri.Substring(0, nameIndex);
591 accountInfo = new AccountInfo
593 UserName = accountName,
594 AccountPath = Path.Combine(accountInfo.AccountPath, parts[0], parts[1]),
595 StorageUri = new Uri(root + accountName),
596 BlockHash=accountInfo.BlockHash,
597 BlockSize=accountInfo.BlockSize,
598 Token=accountInfo.Token
603 accountName = UserName;
604 container = parts[0];
607 return Task.Factory.StartNew(() =>
609 var client = new CloudFilesClient(accountInfo);
610 var containerInfo = client.GetContainerInfo(accountName, container);
611 return containerInfo;