public static CreateResponse ( int responseCode, string responseText, Dictionary |
||
responseCode | int | The response code (200 etc.) |
responseText | string | The response text (OK etc.) |
headers | Dictionary |
The SIP headers. |
content | string | The SIP body content. |
originalRequest | The original request. | |
Результат |
/// <summary> /// Raises an error (Service unavailable etc) /// </summary> /// <param name="transaction">The transaction.</param> /// <param name="error">The error.</param> public override void Error(Transaction transaction, string error) { if (transaction == null) { Transaction = null; if (!Request.Method.ToUpper().Contains("ACK")) { Message response = Message.CreateResponse(503, "Service unavailable - " + error, null, null, Request); SendResponse(response); return; } Debug.Assert(false, "Warning, dropping ACK"); } ProxyBranch branch = GetBranch(transaction); if (branch == null) { return; } Transaction = null; branch.Transaction = null; if (branch.RemoteCandidates != null && branch.RemoteCandidates.Count > 0) { RetryNextCandidate(branch); } else { ReceivedResponse(null, Message.CreateResponse(503, "Service unavailable - " + error, null, null, branch.Request)); } }
/// <summary> /// Creates a SIP response. /// </summary> /// <param name="responseCode">The response code.</param> /// <param name="responseText">The response text.</param> /// <returns>The created SIP response.</returns> public virtual Message CreateResponse(int responseCode, string responseText) { Message m = null; if (Request != null && Server) { m = Message.CreateResponse(responseCode, responseText, null, null, Request); if (responseCode != 100 && !m.Headers["To"][0].Attributes.ContainsKey("tag")) { m.Headers["To"][0].Attributes.Add("tag", Tag); } } return(m); }
/// <summary> /// Handles request timeouts /// </summary> /// <param name="transaction">The transaction.</param> private void TimeOut(Transaction transaction) { ProxyBranch branch = GetBranch(transaction); if (branch == null) { return; } branch.Transaction = null; if (branch.RemoteCandidates != null && branch.RemoteCandidates.Count > 0) { RetryNextCandidate(branch); } else { ReceivedResponse(null, Message.CreateResponse(408, "Request timeout", null, null, branch.Request)); } }
/// <summary> /// Triggered on timeout. /// </summary> /// <param name="transaction">The transaction.</param> public virtual void Timeout(Transaction transaction) { if ((transaction != null) && (transaction != Transaction)) { return; } Transaction = null; if (Server == false) { if ((RemoteCandidates != null) && (RemoteCandidates.Count > 0)) { RetryNextCandidate(); } else { ReceivedResponse(null, Message.CreateResponse(408, "Request Timeout", null, null, Request)); } } }
/// <summary> /// Creates a SIP response, filling in the necessary parameters from the dialog. /// </summary> /// <param name="response_code">The SIP response_code.</param> /// <param name="response_text">The SIP response_text.</param> /// <param name="content">The SIP body contents.</param> /// <param name="contentType">The type of the SIP body.</param> /// <returns>Message.</returns> public override Message CreateResponse(int response_code, string response_text, string content = null, string contentType = null) { if (Servers.Count == 0) { Debug.Assert(false, String.Format("No server transaction to create response")); return(null); } // TODO REMOVE THIS LOGIC //string branchID = ((Message)response).First("Via").Attributes["branch"]; //Transaction = null; //foreach (Transaction transaction in Servers) //{ // if (branchID == transaction.Branch) // { // Transaction = transaction; // Request = transaction.Request; // } //} //if (Transaction == null) //{ // Debug.Assert(false, String.Format("No transactions in dialog matched")); // return; //} if (Servers.Count > 1) { Console.WriteLine("Got some transaction servers"); } Message request = Servers[Servers.Count - 1].Request; Message response = Message.CreateResponse(response_code, response_text, null, content, request); if (!string.IsNullOrEmpty(contentType)) { response.InsertHeader(new Header(contentType, "Content-Type")); } if (response.ResponseCode != 100 && !response.Headers["To"][0].Attributes.ContainsKey("tag")) { response.Headers["To"][0].Attributes["tag"] = LocalTag; } return(response); }
/// <summary> /// Creates a SIP response given the response code and responseText /// </summary> /// <param name="responseCode">The response code.</param> /// <param name="responseText">The response text.</param> /// <param name="content">The content.</param> /// <param name="contentType">Type of the content.</param> /// <returns>Message.</returns> public virtual Message CreateResponse(int responseCode, string responseText, string content = null, string contentType = null) { if (Request == null) { Debug.Assert(false, String.Format("Invalid request in creating a response")); return(null); } Message responseMessage = Message.CreateResponse(responseCode, responseText, null, content, Request); if (contentType != null) { responseMessage.InsertHeader(new Header(contentType, "Content-Type")); } if (responseMessage.ResponseCode != 100 && !responseMessage.Headers["To"][0].ToString().Contains("tag")) { responseMessage.Headers["To"][0].Attributes.Add("tag", LocalTag); } return(responseMessage); }
/// <summary> /// Raises an error /// </summary> /// <param name="t">The transaction.</param> /// <param name="error">The error.</param> public virtual void Error(Transaction t, string error) { if ((t != null) && t != Transaction) { return; } Transaction = null; if (Server == false) { if ((RemoteCandidates != null) && (RemoteCandidates.Count > 0)) { RetryNextCandidate(); } else { ReceivedResponse(null, Message.CreateResponse(503, "Service unavailable - " + error, null, null, Request)); } } }
/// <summary> /// Handle received request /// </summary> /// <param name="m">The received message.</param> /// <param name="uri">The SIPURI that sent the message.</param> private void ReceivedRequest(Message m, SIPURI uri) { string branch = m.Headers["Via"][0].Attributes["branch"]; Transaction t; if (m.Method == "ACK") { if (branch == "0") { t = null; } else { t = FindTransaction(branch); if (t == null || (t.LastResponse != null && t.LastResponse.Is2XX())) { t = FindTransaction(Transaction.CreateId(branch, m.Method)); } } } else { t = FindTransaction(Transaction.CreateId(branch, m.Method)); } if (t == null) { UserAgent app = null; // Huh ? if ((m.Method != "CANCEL") && (m.Headers["To"][0].Attributes.ContainsKey("tag"))) { //In dialog request Dialog d = FindDialog(m); if (d == null) { if (m.Method != "ACK") { //Updated from latest code TODO UserAgent u = CreateServer(m, uri); if (u != null) { app = u; } else { // TODO: FIX NOTIFY ON SUBSCRIBE HANDLING if (m.Method != "NOTIFY") { Send(Message.CreateResponse(481, "Dialog does not exist", null, null, m)); return; } else { string branchID = m.Headers["Via"][0].Attributes["branch"]; if (_seenNotifys.ContainsKey(branchID) && _seenNotifys[branchID] > 1) { Send(Message.CreateResponse(481, "Dialog does not exist", null, null, m)); return; } else { if (_seenNotifys.ContainsKey(branchID)) { _seenNotifys[branchID] = _seenNotifys[branchID] + 1; } else { _seenNotifys[branchID] = 1; } } } return; } } else { _log.Info("No dialog for ACK, finding transaction"); if (t == null && branch != "0") { t = FindTransaction(Transaction.CreateId(branch, "INVITE")); } if (t != null && t.State != "terminated") { t.ReceivedRequest(m); return; } else { _log.Info("No existing transaction for ACK \n"); UserAgent u = CreateServer(m, uri); if (u != null) { app = u; } else { return; } } } } else { app = d; } } else if (m.Method != "CANCEL") { //Out of dialog request UserAgent u = CreateServer(m, uri); if (u != null) { //TODO error..... app = u; } else if (m.Method == "OPTIONS") { //Handle OPTIONS Message reply = Message.CreateResponse(200, "OK", null, null, m); reply.InsertHeader(new Header("INVITE,ACK,CANCEL,BYE,OPTION,MESSAGE,PUBLISH", "Allow")); Send(m); return; } else if (m.Method == "MESSAGE") { //Handle MESSAGE UserAgent ua = new UserAgent(this) { Request = m }; /*Message reply = ua.CreateResponse(200, "OK"); * Send(reply);*/ App.ReceivedRequest(ua, m, this); return; } else if (m.Method == "PUBLISH") { UserAgent ua = new UserAgent(this) { Request = m }; App.ReceivedRequest(ua, m, this); return; } else if (m.Method != "ACK") { Send(Message.CreateResponse(405, "Method not allowed", null, null, m)); return; } } else { //Cancel Request Transaction o = FindTransaction(Transaction.CreateId(m.Headers["Via"][0].Attributes["branch"], "INVITE")); if (o == null) { Send(Message.CreateResponse(481, "Original transaction does not exist", null, null, m)); return; } app = o.App; } if (app != null) { //t = Transaction.CreateServer(app.Stack, app, app.Request, app.Stack.Transport, app.Stack.Tag); // TODO: Check app or this ? t = Transaction.CreateServer(this, app, m, Transport, Tag); } else if (m.Method != "ACK") { Send(Message.CreateResponse(404, "Not found", null, null, m)); } } else { t.ReceivedRequest(m); } }