private void HandleAssincConnection(IAsyncResult result)
{
StreamReader reader;
StreamWriter writer;
string user, password, mime, uriFile;
// accepted connection
var listener = (TcpListener) result.AsyncState;
var client = listener.EndAcceptTcpClient(result);
_connectionHandler.Set();
var clientId = Guid.NewGuid();
Trace.Write("Accepted connection with ID " + clientId, "Information");
try {
reader = new StreamReader(client.GetStream());
writer = new StreamWriter(client.GetStream()) {AutoFlush = true};
} catch (Exception) {
Trace.WriteLine(
"An error during initialization of reader and writer of connection: " + clientId +
". Closing comunication.", "Information");
client.Close();
return;
}
try {
user = reader.ReadLine();
password = reader.ReadLine();
mime = reader.ReadLine();
uriFile = reader.ReadLine();
} catch (Exception) {
Trace.WriteLine(
"An error reading user, password, mime and uro file of connection: " + clientId +
". Closing comunication.", "Information");
client.Close();
return;
}
if (user == null || password == null || mime == null || uriFile == null) {
Trace.WriteLine(
"User or password or mime or uri file are null (connection: " + clientId +
"). Closing comunication.", "Information");
client.Close();
return;
}
// Trace.WriteLine("user: "******"Information");
// Trace.WriteLine("password: "******"Information");
// Trace.WriteLine("mime: " + mime, "Information");
// Trace.WriteLine("uri file: " + uriFile, "Information");
var datasource = new ServerDataSource();
if (!datasource.UserExists(user, password))
{
writer.WriteLine("KO");
client.Close();
return;
}
writer.WriteLine("OK");
IList<BaseTool> processingTools = null;
var numberOfTools = 0;
try {
processingTools = ToolsManifest.GetAvailableTools(mime);
numberOfTools = processingTools.Count;
} catch {
Trace.WriteLine("Error getting available tools (connection: " + clientId + ")", "Information");
}
try {
//communicating the number of tools
writer.WriteLine(numberOfTools);
} catch (Exception) {
Trace.WriteLine(
"Error sending the number of tools to processed file (connection: " + clientId +
"). Closing comunication.", "Information");
client.Close();
return;
}
try {
for (var i = 0; i < numberOfTools; ++i)
writer.WriteLine(processingTools[i].ToString());
} catch (Exception) {
Trace.WriteLine(
"Error sending the tools to processed file (connection: " + clientId + "). Closing comunication.",
"Information");
client.Close();
return;
}
string operation;
try {
operation = reader.ReadLine();
} catch (Exception) {
Trace.WriteLine("Error reading the operation (connection: " + clientId + "). Closing comunication.",
"Information");
client.Close();
return;
}
if (operation == null) {
Trace.WriteLine("Error reading the operation (connection: " + clientId + "). Closing comunication.",
"Information");
client.Close();
return;
}
Trace.WriteLine("operazione da compiere: " + operation, "Information");
datasource.EnqueueProcessingRequest(new ProcessingMessage(uriFile, mime, operation));
var returnMessage = datasource.DequeueProcessingCompletion();
Trace.WriteLine("File uri: " + returnMessage.FileUri, "Information");
try {
writer.WriteLine(returnMessage.FileUri);
} catch (Exception) {
Trace.WriteLine(
"Error sending the uri of processed file (connection: " + clientId + "). Closing comunication.",
"Information");
client.Close();
return;
}
client.Close();
}
