public static void Initialize(IChatUserProvider userProvider, IChatRoomStorage storage)
{
if (initialized)
return;
timer = InitializeTimer(userProvider, storage);
initialized = true;
}
private static Timer InitializeTimer(IChatUserProvider userProvider, IChatRoomStorage storage)
{
var t = new Timer();
t.AutoReset = true;
t.Interval = TimeSpan.FromMinutes(1).TotalMilliseconds;
t.Elapsed += (s, e) =>
{
if (timerLock)
{
return;
}
try
{
timerLock = true;
//TODO: make timeout configurable
var removedUsers = storage.RemoveInactiveUsers(TimeSpan.FromMinutes(1.0));
foreach (var userInRoom in removedUsers)
{
var userId = userInRoom.Key;
var roomId = userInRoom.Value;
var user = userProvider.GetUser(userId);
if (user != null)
{
storage.AddMessage(roomId, new Message
{
Content =
string.Format("User {0} has left the chat. (timeout)",
user.DisplayName),
FromUserId = userId,
MessageType = MessageTypeEnum.UserLeft,
Timestamp = Miscellaneous.GetTimestamp()
});
if (storage.UnregisterUserBroadcasts(roomId, userId))
{
storage.AddMessage(roomId, new Message
{
FromUserId = userId,
MessageType = MessageTypeEnum.StopVideoBroadcast,
Timestamp = Miscellaneous.GetTimestamp()
});
}
}
}
}
finally { timerLock = false; }
};
t.Start();
return(t);
}
public static void Initialize(IChatUserProvider userProvider, IChatRoomStorage storage)
{
if (initialized)
{
return;
}
timer = InitializeTimer(userProvider, storage);
initialized = true;
}
private static Timer InitializeTimer(IChatUserProvider userProvider, IChatRoomStorage storage)
{
var t = new Timer();
t.AutoReset = true;
t.Interval = TimeSpan.FromMinutes(1).TotalMilliseconds;
t.Elapsed += (s, e) =>
{
if (timerLock){return;}
try
{
timerLock = true;
//TODO: make timeout configurable
var removedUsers = storage.RemoveInactiveUsers(TimeSpan.FromMinutes(1.0));
foreach (var userInRoom in removedUsers)
{
var userId = userInRoom.Key;
var roomId = userInRoom.Value;
var user = userProvider.GetUser(userId);
if (user != null)
{
storage.AddMessage(roomId, new Message
{
Content =
string.Format("User {0} has left the chat. (timeout)",
user.DisplayName),
FromUserId = userId,
MessageType = MessageTypeEnum.UserLeft,
Timestamp = Miscellaneous.GetTimestamp()
});
if (storage.UnregisterUserBroadcasts(roomId, userId))
{
storage.AddMessage(roomId, new Message
{
FromUserId = userId,
MessageType = MessageTypeEnum.StopVideoBroadcast,
Timestamp = Miscellaneous.GetTimestamp()
});
}
}
}
}
finally { timerLock = false; }
};
t.Start();
return t;
}
public MessengerCommand()
{
if (!importsSatisfied)
{
lock (Global.CompositionLock)
{
chatRoomStorage = Global.Container.Resolve<IChatRoomStorage>();
chatUserProvider = Global.Container.Resolve<IChatUserProvider>();
messengerProvider = Global.Container.Resolve<IMessengerPresenceProvider>();
}
importsSatisfied = true;
}
}
public MessengerCommand()
{
if (!importsSatisfied)
{
lock (Global.CompositionLock)
{
chatRoomStorage = Global.Container.Resolve <IChatRoomStorage>();
chatUserProvider = Global.Container.Resolve <IChatUserProvider>();
messengerProvider = Global.Container.Resolve <IMessengerPresenceProvider>();
}
importsSatisfied = true;
}
}
public ChatEngine()
{
if (!importsSatisfied)
{
lock (Global.CompositionLock)
{
chatRoomProvider = Global.Container.Resolve<IChatRoomProvider>();
chatRoomStorage = Global.Container.Resolve<IChatRoomStorage>();
chatUserProvider = Global.Container.Resolve<IChatUserProvider>();
chatSettingsProvider = Global.Container.Resolve<IChatSettings>();
if (Global.Container.IsRegistered<IMessengerPresenceProvider>())
messengerProvider = Global.Container.Resolve<IMessengerPresenceProvider>();
}
importsSatisfied = true;
}
CleanTimedOutUsers.Initialize(chatUserProvider, chatRoomStorage);
}
public ChatEngine()
{
if (!importsSatisfied)
{
lock (Global.CompositionLock)
{
chatRoomProvider = Global.Container.Resolve <IChatRoomProvider>();
chatRoomStorage = Global.Container.Resolve <IChatRoomStorage>();
chatUserProvider = Global.Container.Resolve <IChatUserProvider>();
chatSettingsProvider = Global.Container.Resolve <IChatSettings>();
if (Global.Container.IsRegistered <IMessengerPresenceProvider>())
{
messengerProvider = Global.Container.Resolve <IMessengerPresenceProvider>();
}
}
importsSatisfied = true;
}
CleanTimedOutUsers.Initialize(chatUserProvider, chatRoomStorage);
}
public void ProcessRequest(HttpContext context)
{
if (!importsSatisfied)
{
lock (Global.CompositionLock)
{
chatRoomStorage = Global.Container.Resolve <IChatRoomStorage>();
chatSettings = Global.Container.Resolve <IChatSettings>();
}
importsSatisfied = true;
}
var request = context.Request;
var files = request.Files;
if (files.Count == 0)
{
ReturnResponse(context, "Please select a file!");
return;
}
var fileName = Path.GetFileName(files[0].FileName);
string token = request.QueryString["token"];
string userId = chatRoomStorage.GetUserIdByToken(token);
if (!chatSettings.EnableFileTransfer)
{
return;
}
string chatRoomIdString = request.QueryString["chatRoomId"];
string toUserId = request.QueryString["toUserId"];
if (String.IsNullOrWhiteSpace(chatRoomIdString))
{
return;
}
if (!chatRoomStorage.IsUserInRoom(chatRoomIdString, userId))
{
return;
}
string[] allowedExtensions = Settings.Default.SendFileAllowedExtensions.Split(',');
bool fileIsAllowed = false;
foreach (string extension in allowedExtensions)
{
if (fileName.ToLower().EndsWith("." + extension.Trim().ToLower()))
{
fileIsAllowed = true;
break;
}
}
if (!fileIsAllowed)
{
ReturnResponse(context, "The file type is not allowed!");
return;
}
string userFilesPath = "UserFiles/" + userId;
string userFilesDir = context.Server.MapPath(userFilesPath);
if (!Directory.Exists(userFilesDir))
{
Directory.CreateDirectory(userFilesDir);
}
string filename = fileName
.Replace('\\', '_').Replace('/', '_')
.Replace(' ', '_').Replace('\t', '_')
.Replace('-', '_').Replace('<', '_')
.Replace('>', '_');
string fileUrl = VirtualPathUtility.ToAbsolute(String.Format("~/{0}", Path.Combine(userFilesPath, filename)));
filename = userFilesDir + @"\" + filename;
using (Stream file = File.OpenWrite(filename))
{
CopyStream(files[0].InputStream, file);
}
var imageExtensions = new[] { "png", "gif", "bmp", "jpg" };
bool fileIsImage = false;
foreach (string extension in imageExtensions)
{
if (filename.ToLower().EndsWith("." + extension.ToLower()))
{
fileIsImage = true;
break;
}
}
chatRoomStorage.AddMessage(chatRoomIdString, new Message
{
Content = fileUrl,
FromUserId = userId,
ToUserId = toUserId,
MessageType = fileIsImage ? MessageTypeEnum.SendImageFile :
MessageTypeEnum.SendFile,
Timestamp = Miscellaneous.GetTimestamp()
});
ReturnResponse(context, String.Empty);
}
public void ProcessRequest(HttpContext context)
{
if (!importsSatisfied)
{
lock (Global.CompositionLock)
{
chatRoomStorage = Global.Container.Resolve<IChatRoomStorage>();
chatSettings = Global.Container.Resolve<IChatSettings>();
}
importsSatisfied = true;
}
var request = context.Request;
var files = request.Files;
if (files.Count == 0)
{
ReturnResponse(context, "Please select a file!");
return;
}
var fileName = Path.GetFileName(files[0].FileName);
string token = request.QueryString["token"];
string userId = chatRoomStorage.GetUserIdByToken(token);
if (!chatSettings.EnableFileTransfer) return;
string chatRoomIdString = request.QueryString["chatRoomId"];
string toUserId = request.QueryString["toUserId"];
if (String.IsNullOrWhiteSpace(chatRoomIdString))
{
return;
}
if (!chatRoomStorage.IsUserInRoom(chatRoomIdString, userId))
{
return;
}
string[] allowedExtensions = Settings.Default.SendFileAllowedExtensions.Split(',');
bool fileIsAllowed = false;
foreach (string extension in allowedExtensions)
{
if (fileName.ToLower().EndsWith("." + extension.Trim().ToLower()))
{
fileIsAllowed = true;
break;
}
}
if (!fileIsAllowed)
{
ReturnResponse(context, "The file type is not allowed!");
return;
}
string userFilesPath = "UserFiles/" + userId;
string userFilesDir = context.Server.MapPath(userFilesPath);
if (!Directory.Exists(userFilesDir))
Directory.CreateDirectory(userFilesDir);
string filename = fileName
.Replace('\\', '_').Replace('/', '_')
.Replace(' ', '_').Replace('\t', '_')
.Replace('-', '_').Replace('<', '_')
.Replace('>', '_');
string fileUrl = VirtualPathUtility.ToAbsolute(String.Format("~/{0}", Path.Combine(userFilesPath, filename)));
filename = userFilesDir + @"\" + filename;
using (Stream file = File.OpenWrite(filename))
{
CopyStream(files[0].InputStream, file);
}
var imageExtensions = new[] { "png", "gif", "bmp", "jpg" };
bool fileIsImage = false;
foreach (string extension in imageExtensions)
{
if (filename.ToLower().EndsWith("." + extension.ToLower()))
{
fileIsImage = true;
break;
}
}
chatRoomStorage.AddMessage(chatRoomIdString, new Message
{
Content = fileUrl,
FromUserId = userId,
ToUserId = toUserId,
MessageType = fileIsImage ? MessageTypeEnum.SendImageFile :
MessageTypeEnum.SendFile,
Timestamp = Miscellaneous.GetTimestamp()
});
ReturnResponse(context, String.Empty);
}
