root / trunk / Pithos.Core / PithosMonitor.cs @ c92e02f3
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using System; |
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using System.Collections.Concurrent; |
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using System.Collections.Generic; |
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using System.ComponentModel.Composition; |
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using System.Diagnostics; |
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using System.Diagnostics.Contracts; |
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using System.IO; |
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using System.Linq; |
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using System.Net.NetworkInformation; |
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using System.Security.Cryptography; |
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using System.ServiceModel.Description; |
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using System.Text; |
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using System.Threading; |
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using System.Threading.Tasks; |
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using Castle.ActiveRecord.Queries; |
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using Microsoft.WindowsAPICodePack.Net; |
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using Pithos.Core.Agents; |
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using Pithos.Interfaces; |
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using System.ServiceModel; |
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using Pithos.Network; |
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using log4net; |
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|
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namespace Pithos.Core |
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{ |
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[Export(typeof(PithosMonitor))] |
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public class PithosMonitor:IDisposable |
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{ |
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private int _blockSize; |
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private string _blockHash; |
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|
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[Import] |
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public IPithosSettings Settings{get;set;} |
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|
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[Import] |
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public IStatusKeeper StatusKeeper { get; set; } |
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|
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[Import] |
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public IPithosWorkflow Workflow { get; set; } |
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|
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public ICloudClient CloudClient { get; set; } |
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|
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public IStatusNotification StatusNotification { get; set; } |
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|
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[Import] |
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public FileAgent FileAgent { get; set; } |
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|
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[Import] |
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public WorkflowAgent WorkflowAgent { get; set; } |
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|
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[Import] |
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public NetworkAgent NetworkAgent { get; set; } |
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|
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public string UserName { get; set; } |
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private string _apiKey; |
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public string ApiKey |
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{ |
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get { return _apiKey; } |
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set |
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{ |
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_apiKey = value; |
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if (_accountInfo != null) |
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_accountInfo.Token = value; |
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} |
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} |
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|
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private AccountInfo _accountInfo; |
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|
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|
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private static readonly ILog Log = LogManager.GetLogger(typeof(PithosMonitor)); |
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|
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|
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public bool Pause |
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{ |
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get { return FileAgent.Pause; } |
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set |
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{ |
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FileAgent.Pause = value; |
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if (value) |
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{ |
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StatusKeeper.SetPithosStatus(PithosStatus.SyncPaused); |
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StatusNotification.NotifyChange("Paused"); |
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} |
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else |
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{ |
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StatusKeeper.SetPithosStatus(PithosStatus.InSynch); |
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StatusNotification.NotifyChange("Synchronizing"); |
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} |
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} |
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} |
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|
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private string _rootPath; |
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public string RootPath |
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{ |
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get { return _rootPath; } |
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set |
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{ |
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_rootPath = String.IsNullOrWhiteSpace(value) |
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? String.Empty |
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: value.ToLower(); |
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} |
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} |
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|
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|
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CancellationTokenSource _cancellationSource; |
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|
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|
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private bool _started; |
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|
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public void Start() |
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{ |
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if (String.IsNullOrWhiteSpace(ApiKey)) |
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throw new InvalidOperationException("The ApiKey is empty"); |
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if (String.IsNullOrWhiteSpace(UserName)) |
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throw new InvalidOperationException("The UserName is empty"); |
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if (String.IsNullOrWhiteSpace(AuthenticationUrl)) |
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throw new InvalidOperationException("The Authentication url is empty"); |
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Contract.EndContractBlock(); |
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|
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//If the account doesn't have a valid path, don't start monitoring but don't throw either |
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if (String.IsNullOrWhiteSpace(RootPath)) |
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//TODO; Warn user? |
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return; |
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|
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StatusNotification.NotifyChange("Starting"); |
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if (_started) |
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{ |
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if (!_cancellationSource.IsCancellationRequested) |
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return; |
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} |
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_cancellationSource = new CancellationTokenSource(); |
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|
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|
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CloudClient=new CloudFilesClient(UserName,ApiKey); |
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var proxyUri = ProxyFromSettings(); |
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CloudClient.Proxy = proxyUri; |
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CloudClient.UsePithos = this.UsePithos; |
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CloudClient.AuthenticationUrl = this.AuthenticationUrl; |
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|
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_accountInfo = CloudClient.Authenticate(); |
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_accountInfo.AccountPath = RootPath; |
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|
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|
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var pithosFolder = Path.Combine(RootPath, FolderConstants.PithosContainer); |
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if (!Directory.Exists(pithosFolder)) |
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Directory.CreateDirectory(pithosFolder); |
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//Create the cache folder and ensure it is hidden |
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CreateHiddenFolder(RootPath, FolderConstants.CacheFolder); |
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|
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var policy=CloudClient.GetAccountPolicies(_accountInfo); |
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|
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StatusNotification.NotifyAccount(policy); |
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EnsurePithosContainers(); |
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|
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StatusKeeper.BlockHash = _blockHash; |
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StatusKeeper.BlockSize = _blockSize; |
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|
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StatusKeeper.StartProcessing(_cancellationSource.Token); |
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IndexLocalFiles(); |
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StartWatcherAgent(); |
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|
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StartNetworkAgent(); |
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|
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StartWorkflowAgent(); |
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WorkflowAgent.RestartInterruptedFiles(_accountInfo); |
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_started = true; |
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} |
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|
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private void EnsurePithosContainers() |
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{ |
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|
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//Create the two default containers if they are missing |
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var pithosContainers = new List<string>{ FolderConstants.TrashContainer,FolderConstants.PithosContainer}; |
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foreach (var container in pithosContainers) |
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{ |
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var info=CloudClient.GetContainerInfo(this.UserName, container); |
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if (info == ContainerInfo.Empty) |
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{ |
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CloudClient.CreateContainer(this.UserName, container); |
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info = CloudClient.GetContainerInfo(this.UserName, container); |
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} |
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_blockSize = info.BlockSize; |
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_blockHash = info.BlockHash; |
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_accountInfo.BlockSize = _blockSize; |
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_accountInfo.BlockHash = _blockHash; |
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} |
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} |
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|
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public string AuthenticationUrl { get; set; } |
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|
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private Uri ProxyFromSettings() |
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{ |
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if (Settings.UseManualProxy) |
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{ |
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var proxyUri = new UriBuilder |
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{ |
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Host = Settings.ProxyServer, |
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Port = Settings.ProxyPort |
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}; |
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if (Settings.ProxyAuthentication) |
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{ |
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proxyUri.UserName = Settings.ProxyUsername; |
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proxyUri.Password = Settings.ProxyPassword; |
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} |
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return proxyUri.Uri; |
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} |
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return null; |
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} |
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|
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private void IndexLocalFiles() |
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{ |
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StatusNotification.NotifyChange("Indexing Local Files",TraceLevel.Info); |
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using (log4net.ThreadContext.Stacks["Monitor"].Push("Indexing local files")) |
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{ |
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Log.Info("START"); |
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try |
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{ |
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var cachePath = Path.Combine(RootPath, FolderConstants.CacheFolder); |
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var directory = new DirectoryInfo(RootPath); |
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var files = |
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from file in directory.EnumerateFiles("*", SearchOption.AllDirectories) |
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where !file.FullName.StartsWith(cachePath, StringComparison.InvariantCultureIgnoreCase) && |
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!file.Extension.Equals("ignore", StringComparison.InvariantCultureIgnoreCase) |
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select file; |
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StatusKeeper.ProcessExistingFiles(files); |
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|
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} |
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catch (Exception exc) |
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{ |
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Log.Error("[ERROR]", exc); |
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} |
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finally |
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{ |
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Log.Info("[END]"); |
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} |
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} |
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} |
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|
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|
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|
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|
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|
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private void StartWorkflowAgent() |
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{ |
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|
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bool connected = NetworkListManager.IsConnectedToInternet; |
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//If we are not connected retry later |
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if (!connected) |
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{ |
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Task.Factory.StartNewDelayed(10000, StartWorkflowAgent); |
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return; |
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} |
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|
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try |
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{ |
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WorkflowAgent.StatusNotification = StatusNotification; |
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WorkflowAgent.Start(); |
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} |
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catch (Exception) |
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{ |
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//Faild to authenticate due to network or account error |
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//Retry after a while |
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Task.Factory.StartNewDelayed(10000, StartWorkflowAgent); |
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} |
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} |
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|
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public bool UsePithos { get; set; } |
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|
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|
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internal class LocalFileComparer:EqualityComparer<CloudAction> |
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{ |
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public override bool Equals(CloudAction x, CloudAction y) |
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{ |
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if (x.Action != y.Action) |
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return false; |
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if (x.LocalFile != null && y.LocalFile != null && !x.LocalFile.FullName.Equals(y.LocalFile.FullName)) |
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return false; |
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if (x.CloudFile != null && y.CloudFile != null ) |
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{ |
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if (x.CloudFile.Hash == null & y.CloudFile.Hash != null) |
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return false; |
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if (x.CloudFile.Hash != null & y.CloudFile.Hash == null) |
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return false; |
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if (x.CloudFile.Hash == null & y.CloudFile.Hash == null) |
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return (x.CloudFile.Name == y.CloudFile.Name); |
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if (!x.CloudFile.Hash.Equals(y.CloudFile.Hash)) |
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return false; |
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} |
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if (x.CloudFile == null ^ y.CloudFile == null || |
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x.LocalFile == null ^ y.LocalFile == null) |
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return false; |
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return true; |
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} |
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|
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public override int GetHashCode(CloudAction obj) |
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{ |
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var hash1 = (obj.LocalFile == null) ? int.MaxValue : obj.LocalFile.FullName.GetHashCode(); |
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var hash2 = (obj.CloudFile == null) ? int.MaxValue : (obj.CloudFile.Hash ?? obj.CloudFile.Name??"").GetHashCode(); |
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var hash3 = obj.Action.GetHashCode(); |
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return hash1 ^ hash2 & hash3; |
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} |
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} |
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|
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private Timer timer; |
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|
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private void StartNetworkAgent() |
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{ |
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|
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NetworkAgent.AddAccount(_accountInfo); |
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|
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NetworkAgent.StatusNotification = StatusNotification; |
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|
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NetworkAgent.Start(); |
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|
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NetworkAgent.ProcessRemoteFiles(); |
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} |
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|
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//Make sure a hidden cache folder exists to store partial downloads |
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private static string CreateHiddenFolder(string rootPath, string folderName) |
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{ |
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if (String.IsNullOrWhiteSpace(rootPath)) |
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throw new ArgumentNullException("rootPath"); |
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if (!Path.IsPathRooted(rootPath)) |
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throw new ArgumentException("rootPath"); |
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if (String.IsNullOrWhiteSpace(folderName)) |
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throw new ArgumentNullException("folderName"); |
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Contract.EndContractBlock(); |
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|
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var folder = Path.Combine(rootPath, folderName); |
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if (!Directory.Exists(folder)) |
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{ |
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var info = Directory.CreateDirectory(folder); |
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info.Attributes |= FileAttributes.Hidden; |
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|
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Log.InfoFormat("Created cache Folder: {0}", folder); |
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} |
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else |
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{ |
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var info = new DirectoryInfo(folder); |
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if ((info.Attributes & FileAttributes.Hidden) == 0) |
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{ |
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info.Attributes |= FileAttributes.Hidden; |
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Log.InfoFormat("Reset cache folder to hidden: {0}", folder); |
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} |
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} |
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return folder; |
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} |
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|
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|
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|
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|
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private void StartWatcherAgent() |
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{ |
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AgentLocator<FileAgent>.Register(FileAgent,RootPath); |
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|
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FileAgent.StatusKeeper = StatusKeeper; |
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FileAgent.Workflow = Workflow; |
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FileAgent.CachePath = Path.Combine(RootPath, FolderConstants.CacheFolder); |
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FileAgent.Start(_accountInfo, RootPath); |
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} |
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|
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public void Stop() |
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{ |
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AgentLocator<FileAgent>.Remove(RootPath); |
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|
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if (FileAgent!=null) |
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FileAgent.Stop(); |
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FileAgent = null; |
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if (timer != null) |
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timer.Dispose(); |
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timer = null; |
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} |
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|
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|
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~PithosMonitor() |
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{ |
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Dispose(false); |
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} |
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|
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public void Dispose() |
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{ |
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Dispose(true); |
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GC.SuppressFinalize(this); |
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} |
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|
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protected virtual void Dispose(bool disposing) |
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{ |
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if (disposing) |
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{ |
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Stop(); |
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} |
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} |
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|
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|
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public void MoveFileStates(string oldPath, string newPath) |
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{ |
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if (String.IsNullOrWhiteSpace(oldPath)) |
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throw new ArgumentNullException("oldPath"); |
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if (!Path.IsPathRooted(oldPath)) |
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throw new ArgumentException("oldPath must be an absolute path","oldPath"); |
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if (string.IsNullOrWhiteSpace(newPath)) |
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throw new ArgumentNullException("newPath"); |
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if (!Path.IsPathRooted(newPath)) |
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throw new ArgumentException("newPath must be an absolute path","newPath"); |
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Contract.EndContractBlock(); |
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|
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StatusKeeper.ChangeRoots(oldPath, newPath); |
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} |
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|
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public void AddSelectivePaths(string[] added) |
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{ |
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/* FileAgent.SelectivePaths.AddRange(added); |
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NetworkAgent.SyncPaths(added);*/ |
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} |
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|
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public void RemoveSelectivePaths(string[] removed) |
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{ |
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FileAgent.SelectivePaths.RemoveAll(removed.Contains); |
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foreach (var removedPath in removed.Where(Directory.Exists)) |
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{ |
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Directory.Delete(removedPath,true); |
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} |
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} |
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|
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public IEnumerable<string> GetRootFolders() |
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{ |
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var dirs = from container in CloudClient.ListContainers(UserName) |
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from dir in CloudClient.ListObjects(UserName, container.Name, "") |
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select dir.Name; |
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return dirs; |
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} |
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|
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public ObjectInfo GetObjectInfo(string filePath) |
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{ |
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if (String.IsNullOrWhiteSpace(filePath)) |
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throw new ArgumentNullException("filePath"); |
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Contract.EndContractBlock(); |
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|
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var file=new FileInfo(filePath); |
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string relativeUrl;//=file.AsRelativeUrlTo(this.RootPath); |
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var relativePath = file.AsRelativeTo(RootPath); |
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|
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string accountName,container; |
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|
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var parts=relativePath.Split('\\'); |
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|
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var accountInfo = _accountInfo; |
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if (relativePath.StartsWith(FolderConstants.OthersFolder)) |
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{ |
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accountName = parts[1]; |
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container = parts[2]; |
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relativeUrl = String.Join("/", parts.Splice(3)); |
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//Create the root URL for the target account |
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var oldName = UserName; |
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var absoluteUri = _accountInfo.StorageUri.AbsoluteUri; |
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var nameIndex=absoluteUri.IndexOf(oldName); |
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var root=absoluteUri.Substring(0, nameIndex); |
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|
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accountInfo = new AccountInfo |
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{ |
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UserName = accountName, |
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AccountPath = Path.Combine(accountInfo.AccountPath, parts[0], parts[1]), |
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StorageUri = new Uri(root + accountName), |
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BlockHash=accountInfo.BlockHash, |
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BlockSize=accountInfo.BlockSize, |
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Token=accountInfo.Token |
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}; |
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} |
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else |
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{ |
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accountName = this.UserName; |
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container = parts[0]; |
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relativeUrl = String.Join("/", parts.Splice(1)); |
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} |
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|
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var client = new CloudFilesClient(accountInfo); |
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var objectInfo=client.GetObjectInfo(accountName, container, relativeUrl); |
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return objectInfo; |
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} |
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|
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public Task<ContainerInfo> GetContainerInfo(string filePath) |
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{ |
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if (String.IsNullOrWhiteSpace(filePath)) |
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throw new ArgumentNullException("filePath"); |
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Contract.EndContractBlock(); |
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|
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var file=new FileInfo(filePath); |
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var relativePath = file.AsRelativeTo(RootPath); |
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|
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string accountName,container; |
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|
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var parts=relativePath.Split('\\'); |
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|
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var accountInfo = _accountInfo; |
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if (relativePath.StartsWith(FolderConstants.OthersFolder)) |
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{ |
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accountName = parts[1]; |
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container = parts[2]; |
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//Create the root URL for the target account |
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var oldName = UserName; |
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var absoluteUri = _accountInfo.StorageUri.AbsoluteUri; |
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var nameIndex=absoluteUri.IndexOf(oldName); |
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var root=absoluteUri.Substring(0, nameIndex); |
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|
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accountInfo = new AccountInfo |
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{ |
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UserName = accountName, |
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AccountPath = Path.Combine(accountInfo.AccountPath, parts[0], parts[1]), |
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StorageUri = new Uri(root + accountName), |
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BlockHash=accountInfo.BlockHash, |
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BlockSize=accountInfo.BlockSize, |
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Token=accountInfo.Token |
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}; |
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} |
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else |
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{ |
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accountName = UserName; |
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container = parts[0]; |
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} |
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|
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return Task.Factory.StartNew(() => |
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{ |
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var client = new CloudFilesClient(accountInfo); |
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var containerInfo = client.GetContainerInfo(accountName, container); |
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return containerInfo; |
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}); |
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} |
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} |
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|
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|
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public interface IStatusNotification |
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{ |
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void NotifyChange(string status,TraceLevel level=TraceLevel.Info); |
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void NotifyChangedFile(string filePath); |
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void NotifyAccount(AccountInfo policy); |
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} |
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} |