LibJingle pcp_main.cc 503 Error

Question

I have been trying to get the PCP LibJingle example to work for several days now. After working out all of the compilation and running errors, I have now run into an error that I have no previous experience with.

When running the program either as the sender or receiver the program gets a 503 "service-unavailable" error and terminates the program, but running as the server works just fine. I know that the standard is that 5xx means a server side error, so I looked at the program output line by line (provided at the end). From my near zero experience with servers and LibJingle, the best that I can figure is that either (or both) of the following are causing the 503:

Google has disabled the necessary services for the LibJingle pcp example.
The priority status = -1 (from what I could figure, means client unavailable).

I have logged into both of the Google accounts so that they are not offline/unavailable, and the LibJingle programs reflect this. However, as soon as the PCP example runs, the priority is set back to -1. I have also noticed that most, if not all, of the Google links in the program output are 404.

My questions:

Are these theories anywhere close to what maybe/is happening?
What do I need to do to fix this?
I have heard that it is possible to use a server (other than Google's servers) to run the program through. Is this true? If so, where would I go to look into this?

Thank you, in advance, for the help. --KMC

P.S. In the provided program output, I am attempting to send a file from forge...1@gmail.com to forge...2@gmail.com. I have censored some things and tried to cut down on other bits. But, not knowing for sure what may or may not be relevant, I did not do much cutting. If a mod or someone else that knows what maybe relevant and wants to edit it down, please feel free to do so.

forgefour@forgefour-ubuntu:~/Desktop$ ./LibJingle_Install/libjingle-0.6.13/talk/build/dbg/staging/pcp forge..1@gmail.com call_main.pdf forge..2@gmail.com/pcp8B13E6B8:outputmainadobe.pdf
Directory: /home/forgefour/Desktop
Password: 
connecting...
[002:406] OpenSSLAdapter::OnConnectEvent
[002:406] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:17 2012
[002:406]    
logging in...
[002:446] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:17 2012
[002:446]    
[002:447] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:17 2012
[002:447]    
[002:447]      
[002:447]        
[002:447]      
[002:447]      
[002:447]        
[002:447]          X-GOOGLE-TOKEN
[002:447]        
[002:447]        
[002:447]          X-OAUTH2
[002:447]        
[002:447]      
[002:447]    
[002:447] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:17 2012
[002:447]    
[002:488] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:17 2012
[002:488]    
[002:488] BeginSSL: gmail.com
[002:488] ContinueSSL
[002:488] SSL_connect:before/connect initialization
[002:489] SSL_connect:SSLv3 write client hello A
[002:489] SSL_connect:error in SSLv3 read server hello A
[002:489]  -- error want read
[002:489] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:17 2012
[002:489]    
[002:530] ContinueSSL
[002:530] SSL_connect:error in SSLv3 read server hello A
[002:530]  -- error want read
[002:531] ContinueSSL
[002:531] SSL_connect:SSLv3 read server hello A
[002:531] SSL_connect:SSLv3 read server certificate A
[002:531] SSL_connect:SSLv3 read server done A
[002:531] SSL_connect:SSLv3 write client key exchange A
[002:532] SSL_connect:SSLv3 write change cipher spec A
[002:532] SSL_connect:SSLv3 write finished A
[002:532] SSL_connect:SSLv3 flush data
[002:532] SSL_connect:error in SSLv3 read finished A
[002:532]  -- error want read
[002:575] ContinueSSL
[002:575] SSL_connect:SSLv3 read finished A
[002:575]  -- success
[002:575] Certificate from server:
[002:575]         Version: 3 (0x2)
        Serial Number:31:fa:c7:51:00:00:00:00:5b:30
    Signature Algorithm: sha1WithRSAEncryption
        Issuer: C=US, O=Google Inc, CN=Google Internet Authority
        Validity
            Not Before: Jun  5 00:52:14 2012 GMT
            Not After : Jun  5 01:02:14 2013 GMT
        Subject: C=US, ST=California, L=Mountain View, O=Google Inc, CN=gmail.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:...
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Subject Key Identifier: 
                E1:73:4D:BB:F5:22:C3:57:06:EA:BF:18:73:1F:91:29:EE:54:2A:17
            X509v3 Authority Key Identifier: 
                keyid:BF:C0:30:EB:F5:43:11:3E:67:BA:9E:91:FB:FC:6A:DA:E3:6B:12:24
            X509v3 CRL Distribution Points: 
                Full Name:URI:http://www.gstatic.com/GoogleInternetAuthority/GoogleInternetAuthority.crl
            Authority Information Access: 
                CA Issuers - URI:http://www.gstatic.com/GoogleInternetAuthority/GoogleInternetAuthority.crt
            X509v3 Subject Alternative Name: DNS:gmail.com
    Signature Algorithm: sha1WithRSAEncryption...
[002:575] Cipher: AES128-SHA SSLv3 Kx=RSA Au=RSA  Enc=AES(128)  Mac=SHA1
[002:616] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:616]    
[002:616] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:616]    
[002:616]      
[002:616]        
[002:616]          PLAIN
[002:616]        
[002:616]        
[002:616]          X-GOOGLE-TOKEN
[002:616]        
[002:616]        
[002:616]          X-OAUTH2
[002:616]        
[002:616]      
[002:616]    
[002:617] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:617]    
[002:617]      ## TEXT REMOVED ##
[002:617]    
[002:696] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:696]    
[002:697] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:697]    
[002:737] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:737]    
[002:737] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:737]    
[002:737]      
[002:737]      
[002:737]    
[002:737] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012  
[002:737]    
[002:737]      
[002:737]        
[002:737]          pcp
[002:737]        
[002:737]      
[002:737]    
[002:777] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:777]    
[002:777]      
[002:777]        
[002:777]          forge...1@gmail.com/pcp7B23909E
[002:777]        
[002:777]      
[002:777]    
[002:777] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:777]    
[002:777]      
[002:777]    
[002:778] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:817] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012  
[002:817]    
logged in...
[002:817] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:817]    
[002:817]      
[002:817]        -1
[002:817]      
[002:817]    
Logged in as forge...1@gmail.com/pcp7B23909E
[002:817] Making key pair
[002:822] Returning key pair
[002:822] Making certificate for forge...1@gmail.com/pcp7B23909E
[002:823] Returning certificate
[002:823] TunnelSessionClientBase::OnSessionCreate: received=0
[002:823] Session:2481285798 Old state:STATE_INIT New state:STATE_SENTINITIATE Type:http://www.google.com/talk/securetunnel Transport:http://www.google.com/transport/p2p
[002:823] TunnelSession::OnSessionState(Session::STATE_SENTINITIATE)
[002:823] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:823]    
[002:823]      
[002:823]    
[002:823] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:823]    
[002:823]      
[002:823]        
[002:823]          
[002:823]            
[002:823]              recv:outputmainadobe.pdf
[002:823]            
[002:823]            
[002:823]              -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:823]            
[002:823]          
[002:823]          
[002:823]        
[002:823]      
[002:823]      
[002:823]        
[002:823]          
[002:823]            recv:outputmainadobe.pdf
[002:823]          
[002:823]          
[002:823]            -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:823]          
[002:823]        
[002:823]      
[002:823]    
[002:867] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:867]    
[002:867]      
[002:867]        
[002:867]          
[002:867]          
[002:867]          
[002:867]          
[002:867]          
[002:867]        
[002:867]        
[002:867]          
[002:867]            CAESHgoVZm9yZ2Vjb21tczFAZ21haWwuY29tEJXfqb2CJxoQy4rGyFRtv1QQGHf8AQWC0A==
[002:867]          
[002:867]          
[002:867]        
[002:867]      
[002:867]    
[002:880] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:880]    
[002:880]      
[002:880]        -1
[002:880]      
[002:880]      
[002:880]    
[002:880] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:882] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012   
[002:882]    
[002:882]      
[002:882]      
[002:882]        24
[002:882]      
[002:882]      
[002:882]      
[002:882]        
[002:882]          c632207e8c5c202147ccbd6c431334234750f966
[002:882]        
[002:882]      
[002:882]    
[002:956] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:956]    
[002:956]      
[002:956]        
[002:956]          
[002:956]            
[002:956]              recv:outputmainadobe.pdf
[002:956]            
[002:956]            
[002:956] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:956]    -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  recv:outputmainadobe.pdf
[002:956]  
[002:956]  
[002:956] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:956]    -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:956]  
[002:957] Error(session.cc:858): Session error:

in response to:
recv:outputmainadobe.pdf-----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
recv:outputmainadobe.pdf-----BEGIN CERTIFICATE-----...----END CERTIFICATE-----

[002:957] Session:2481285798 Old state:STATE_SENTINITIATE New state:STATE_SENTTERMINATE Type:http://www.google.com/talk/securetunnel Transport:http://www.google.com/transport/p2p
[002:957] TunnelSession::OnSessionState(Session::STATE_SENTTERMINATE)
[002:957] Destroying unconnected PseudoTcpChannel
[002:957] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:957]    
[002:957]      
[002:957]        
[002:957]          
[002:957]        
[002:957]      
[002:957]      
[002:957]        
[002:957]      
[002:957]    
[002:957] OpenSSLStreamAdapter::OnEvent(SE_CLOSE, -1)
[002:957] Cleanup
Tunnel closed with error: -1
[002:957] Cleanup
[002:957] TunnelSessionClientBase::OnSessionDestroy
[002:957] Session:2481285798 Old state:STATE_SENTTERMINATE New state:STATE_DEINIT Type:http://www.google.com/talk/securetunnel Transport:http://www.google.com/transport/p2p
[002:957] virtual void cricket::PseudoTcpChannel::OnMessage(talk_base::Message*): (MSG_SI_DESTROY)
[002:957] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:957]  
logged out...
[002:957] Cleanup

EDIT: As requested I am including some of the code (I would include all of it, but the main file is 723 lines). I am still directly using Google's LibJingle code, unmodified, as I have not yet been able to get this working. The full code for this file can be found here.

int main(int argc, char **argv) {
  talk_base::LogMessage::LogThreads();
  talk_base::LogMessage::LogTimestamps();

  // Parse the arguments.
  int index = 1;
  while (index < argc) {
    std::string name, value;
    if (!ParseArg(argv[index], &name, &value))
      break;

    if (name == "help") {
      Usage();
    } else if (name == "verbose") {
      talk_base::LogMessage::LogToDebug(talk_base::LS_VERBOSE);
    } else if (name == "xmpp-host") {
      gXmppHost = value;
    } else if (name == "xmpp-port") {
      gXmppPort = ParseIntArg(name, value);
    } else if (name == "xmpp-use-tls") {
      gXmppUseTls = ParseBoolArg(name, value)?
          buzz::TLS_REQUIRED : buzz::TLS_DISABLED;
    } else {
      Error(std::string("unknown option: ") + name);
    }
    index += 1;
  }

  if (index >= argc)
    Error("bad arguments");
  gUserJid = buzz::Jid(argv[index++]);
  if (!gUserJid.IsValid())
    Error("bad arguments");

  char path[MAX_PATH];
#if WIN32
  GetCurrentDirectoryA(MAX_PATH, path);
#else
  if (NULL == getcwd(path, MAX_PATH))
    Error("Unable to get current path");
#endif

  std::cout << "Directory: " << std::string(path) << std::endl;

  buzz::Jid gSrcJid;
  buzz::Jid gDstJid;
  std::string gSrcFile;
  std::string gDstFile;

  bool as_server = true;
  if (index + 2 == argc) {
    ParseFileArg(argv[index], &gSrcJid, &gSrcFile);
    ParseFileArg(argv[index+1], &gDstJid, &gDstFile);
    if(gSrcJid.Str().empty() == gDstJid.Str().empty())
      Error("Exactly one of source JID or destination JID must be empty.");
    as_server = false;
  } else if (index != argc) {
    Error("bad arguments");
  }

  std::cout << "Password: ";
  SetConsoleEcho(false);
  std::cin >> gUserPass.password();
  SetConsoleEcho(true);
  std::cout << std::endl;

  talk_base::InitializeSSL();
  CustomXmppPump pump;// Log in.
  pump.client()->SignalLogInput.connect(&debug_log_, &DebugLog::Input);
  pump.client()->SignalLogOutput.connect(&debug_log_, &DebugLog::Output);
  pump.DoLogin(LoginSettings(), new XmppSocket(gXmppUseTls), 0);

  // Wait until login succeeds.
  std::vector ids;
  ids.push_back(MSG_LOGIN_COMPLETE);
  ids.push_back(MSG_LOGIN_FAILED);
  if (MSG_LOGIN_FAILED == Loop(ids))
    FatalError("Failed to connect");{
    talk_base::scoped_ptr presence(
      new buzz::XmlElement(buzz::QN_PRESENCE));
    presence->AddElement(new buzz::XmlElement(buzz::QN_PRIORITY));
    presence->AddText("-1", 1);
    pump.SendStanza(presence.get());
  }

  std::string user_jid_str = pump.client()->jid().Str();
  std::cout << "Logged in as " << user_jid_str << std::endl;

  // Prepare the random number generator.
  talk_base::InitRandom(user_jid_str.c_str(), user_jid_str.size());

  // Create the P2P session manager.
  talk_base::BasicNetworkManager network_manager;
  AutoPortAllocator allocator(&network_manager, "pcp_agent");
  allocator.SetXmppClient(pump.client());
  cricket::SessionManager session_manager(&allocator);
#ifdef USE_SSL_TUNNEL
  cricket::SecureTunnelSessionClient session_client(pump.client()->jid(),
                                                    &session_manager);
  if (!session_client.GenerateIdentity())
    FatalError("Failed to generate SSL identity");
#else  // !USE_SSL_TUNNEL
  cricket::TunnelSessionClient session_client(pump.client()->jid(),
                                              &session_manager);
#endif  // USE_SSL_TUNNEL
  cricket::SessionManagerTask *receiver =
      new cricket::SessionManagerTask(pump.client(), &session_manager);
  receiver->EnableOutgoingMessages();
  receiver->Start();

  bool success = true;

  if (as_server) {// Establish the appropriate connection.
    pump.Serve(&session_client);
  } else {
    talk_base::StreamInterface* stream = NULL;
    std::string filename;
    bool sending;
    if (gSrcJid.Str().empty()) {
      std::string message("recv:");
      message.append(gDstFile);
      stream = session_client.CreateTunnel(gDstJid, message);
      filename = gSrcFile;
      sending = true;
    } else {
      std::string message("send:");
      message.append(gSrcFile);
      stream = session_client.CreateTunnel(gSrcJid, message);
      filename = gDstFile;
      sending = false;
    }
    success = pump.ProcessStream(stream, filename, sending);
  }

  if (success) {
    // Wait until the copy is done.
    ids.clear();
    ids.push_back(MSG_DONE);
    ids.push_back(MSG_LOGIN_FAILED);
    Loop(ids);
  }

  pump.DoDisconnect();// Log out.

  return 0;
}

AeroBuffalo · Accepted Answer

Okay, so this error was because of the wrong full JID and wrong code execution. PCP should be run following the provided sequence:

Run "./pcp receiveruser@host.com" and provide account password.
Read the resulting full JID of receiveruser@host.com account provided in the code output. Easiest way, if possible, is to search for: "logged in as" in the output. Take the everything after the ".com/" in the user's account informaiton.
Run "./pcp senderuser@host.com send_file_name.extension receiveruser@host.com/(full JID):received_file_name.extension"

This error was occurring because the method of code execution being used was preventing the account from being seen as available. It was nothing to do with a server error or a lack of Google service (sorry to have doubted you, Google). As for the priority being -1, this also had nothing to do with the error (as learned after reading up on XMPP).

LibJingle pcp_main.cc 503 Error

Answers (1)

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