example/diameter/launcher/MyDiameterEntity.cpp

   1 // ANNA - Anna is Not Nothingness Anymore                                                         //
   2 //                                                                                                //
   3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
   4 //                                                                                                //
   5 // See project site at http://redmine.teslayout.com/projects/anna-suite                           //
   6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
   7
   8
   9 // Project
  10 #include <anna/core/core.hpp>
  11 #include <anna/diameter/functions.hpp>
  12 #include <anna/time/functions.hpp>
  13 #include <anna/diameter.comm/Response.hpp>
  14
  15 // Process
  16 #include "MyDiameterEntity.hpp"
  17 #include "Launcher.hpp"
  18
  19
  20 void MyDiameterEntity::eventRequestRetransmission(const anna::diameter::comm::ClientSession* clientSession, anna::diameter::comm::Message *request) throw() {
  21
  22   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventRequestRetransmission", ANNA_FILE_LOCATION));
  23
  24   // Base class:
  25   Entity::eventRequestRetransmission(clientSession, request); // warning trace
  26
  27   // Performance stats:
  28   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
  29   CommandLine& cl(anna::CommandLine::instantiate());
  30   // CommandId:
  31   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(request->getBody());
  32   LOGDEBUG
  33   (
  34     std::string msg = "Request retransmitted: ";
  35     msg += anna::diameter::functions::commandIdAsPairString(cid);
  36     msg += " | DiameterServer: ";
  37     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
  38     msg += " | EventTime: ";
  39     msg += anna::time::functions::currentTimeAsString();
  40     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
  41   );
  42
  43   // Write retransmission
  44   if(my_app.logEnabled()) my_app.writeLogFile(request->getBody(), "retry", clientSession->asString(), a_codecEngine);
  45 }
  46
  47
  48 void MyDiameterEntity::eventRequest(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
  49 throw(anna::RuntimeException) {
  50   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventRequest", ANNA_FILE_LOCATION));
  51   // Performance stats:
  52   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
  53   CommandLine& cl(anna::CommandLine::instantiate());
  54   // CommandId:
  55   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
  56   LOGDEBUG
  57   (
  58     std::string msg = "Request received: ";
  59     msg += anna::diameter::functions::commandIdAsPairString(cid);
  60     msg += " | DiameterServer: ";
  61     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
  62     msg += " | EventTime: ";
  63     msg += anna::time::functions::currentTimeAsString();
  64     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
  65   );
  66
  67   // Write reception
  68   if(my_app.logEnabled()) my_app.writeLogFile(message, "recvfe", clientSession->asString(), a_codecEngine);
  69
  70   // Lookup reacting answers list:
  71   int code = cid.first;
  72   anna::diameter::codec::Message *answer_message = a_reactingAnswers.getMessage(code);
  73   if (answer_message) {
  74     // Prepare answer:
  75     my_app.getCommunicator()->prepareAnswer(answer_message, message);
  76
  77     try {
  78       anna::diameter::comm::Message *msg = my_app.createCommMessage();
  79       msg->setBody(answer_message->code());
  80       /* response = NULL =*/clientSession->send(msg);
  81       my_app.releaseCommMessage(msg);
  82
  83       if(my_app.logEnabled()) my_app.writeLogFile(*answer_message, "sent2e", clientSession->asString());
  84     } catch(anna::RuntimeException &ex) {
  85       ex.trace();
  86
  87       if(my_app.logEnabled()) my_app.writeLogFile(*answer_message, "send2eError", clientSession->asString());
  88     }
  89
  90     // Pop front the reacting answer:
  91     a_reactingAnswers.nextMessage(code);
  92     return;
  93   }
  94
  95   LOGDEBUG
  96   (
  97     std::string msg = "No answers programmed (maybe sold out) for request coming from entity: ";
  98     msg += anna::diameter::functions::commandIdAsPairString(cid);
  99     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 100   );
 101
 102   // not found: forward to client (if exists)
 103   // Forward to client:
 104   anna::diameter::comm::LocalServer *localServer = my_app.getDiameterLocalServer();
 105
 106   if(localServer && (cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) /* don't forward CER */) {
 107     try {
 108       anna::diameter::comm::Message *msg = my_app.createCommMessage();
 109       msg->forwardEndToEnd(); // end-to-end will be kept
 110       msg->setBody(message);
 111       msg->setRequestClientSessionKey(clientSession->getKey());
 112       bool success = localServer->send(msg);
 113
 114       // Detailed log:
 115       if(my_app.logEnabled()) {
 116         anna::diameter::comm::ServerSession *usedServerSession = localServer->getLastUsedResource();
 117         std::string detail = usedServerSession ? usedServerSession->asString() : "<null server session>"; // esto no deberia ocurrir
 118         my_app.writeLogFile(message, (success ? "fwd2c" : "fwd2cError"), detail, a_codecEngine);
 119       }
 120     } catch(anna::RuntimeException &ex) {
 121       ex.trace();
 122     }
 123   }
 124 }
 125
 126 void MyDiameterEntity::eventResponse(const anna::diameter::comm::Response &response)
 127 throw(anna::RuntimeException) {
 128   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventResponse", ANNA_FILE_LOCATION));
 129   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
 130   CommandLine& cl(anna::CommandLine::instantiate());
 131   anna::diameter::comm::ClassCode::_v code = response.getClassCode();
 132   anna::diameter::comm::Response::ResultCode::_v result = response.getResultCode();
 133   anna::diameter::comm::Message* request = const_cast<anna::diameter::comm::Message*>(response.getRequest());
 134   const anna::DataBlock* message = response.getMessage();
 135   const anna::diameter::comm::ClientSession *clientSession = static_cast<const anna::diameter::comm::ClientSession *>(response.getSession());
 136   bool isBindResponse = (code == anna::diameter::comm::ClassCode::Bind);
 137   bool isApplicationMessage = (code == anna::diameter::comm::ClassCode::ApplicationMessage);
 138   bool contextExpired = (result == anna::diameter::comm::Response::ResultCode::Timeout);
 139   bool isUnavailable = (result == anna::diameter::comm::Response::ResultCode::DiameterUnavailable);
 140   bool isOK = (result == anna::diameter::comm::Response::ResultCode::Success);
 141   // CommandId:
 142   anna::diameter::CommandId request_cid = request->getCommandId();
 143   LOGDEBUG
 144   (
 145     std::string msg = "Response received for original diameter request: ";
 146     msg += anna::diameter::functions::commandIdAsPairString(request_cid);
 147     msg += " | Response: ";
 148     msg += response.asString();
 149     msg += " | DiameterServer: ";
 150     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
 151     msg += " | EventTime: ";
 152     msg += anna::time::functions::currentTimeAsString();
 153     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 154   );
 155
 156   if(isUnavailable) {
 157     //if (isApplicationMessage)
 158     LOGWARNING(anna::Logger::warning("Diameter entity unavailable for Diameter Request", ANNA_FILE_LOCATION));
 159   }
 160
 161   if(contextExpired) {
 162     //if (isApplicationMessage)
 163     LOGWARNING(anna::Logger::warning("Context Expired for Diameter Request which was sent to the entity", ANNA_FILE_LOCATION));
 164
 165     if(request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) {  // don't trace CEA
 166       if(my_app.logEnabled()) my_app.writeLogFile(*request, "req2e-expired", clientSession->asString(), a_codecEngine);
 167     }
 168   }
 169
 170   if(isOK) {
 171     LOGDEBUG(
 172       std::string msg = "Received response for diameter message:  ";
 173       msg += anna::diameter::functions::commandIdAsPairString(request_cid);
 174       anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 175     );
 176
 177     // Write reception
 178     if(request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) {  // don't trace CEA
 179       if(my_app.logEnabled()) {
 180         my_app.writeLogFile(*message, "recvfe", clientSession->asString(), a_codecEngine);
 181       }
 182     }
 183
 184     // Forward to client:
 185     anna::diameter::comm::LocalServer *localServer = my_app.getDiameterLocalServer();
 186
 187     if(localServer && (request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) /* don't forward CEA */) {
 188       try {
 189         anna::diameter::comm::Message *msg = my_app.createCommMessage();
 190         msg->forwardEndToEnd(); // end-to-end will be kept
 191         msg->setBody(*message);
 192         bool success = localServer->send(msg, request->getRequestServerSessionKey());
 193         my_app.releaseCommMessage(msg);
 194         my_app.releaseCommMessage(request);
 195
 196         // Detailed log:
 197         anna::diameter::comm::ServerSession *usedServerSession = my_app.getMyDiameterEngine()->findServerSession(request->getRequestServerSessionKey());
 198         std::string detail = usedServerSession ? usedServerSession->asString() : "<null server session>"; // esto no deberia ocurrir
 199
 200         if(my_app.logEnabled()) {
 201           my_app.writeLogFile(*message, (success ? "fwd2c" : "fwd2cError"), detail, a_codecEngine);
 202         }
 203       } catch(anna::RuntimeException &ex) {
 204         ex.trace();
 205       }
 206     }
 207   }
 208
 209   // Triggering burst:
 210   if(isOK || contextExpired) my_app.sendBurstMessage();
 211 }
 212
 213 void MyDiameterEntity::eventUnknownResponse(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
 214 throw(anna::RuntimeException) {
 215   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventUnknownResponse", ANNA_FILE_LOCATION));
 216   // Performance stats:
 217   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
 218   // CommandId:
 219   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
 220   LOGDEBUG
 221   (
 222     std::string msg = "Out-of-context response received from entity: ";
 223     msg += anna::diameter::functions::commandIdAsPairString(cid);
 224     msg += " | DiameterServer: ";
 225     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
 226     msg += " | EventTime: ";
 227     msg += anna::time::functions::currentTimeAsString();
 228     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 229   );
 230
 231   // Write reception
 232   if(my_app.logEnabled()) my_app.writeLogFile(message, "recvfe-ans-unknown", clientSession->asString(), a_codecEngine);
 233 }
 234
 235 void MyDiameterEntity::eventDPA(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
 236 throw(anna::RuntimeException) {
 237   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventDPA", ANNA_FILE_LOCATION));
 238   // Performance stats:
 239   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
 240   // CommandId:
 241   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
 242   LOGDEBUG
 243   (
 244     std::string msg = "Disconnect-Peer-Answer received from entity: ";
 245     msg += anna::diameter::functions::commandIdAsPairString(cid);
 246     msg += " | DiameterServer: ";
 247     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
 248     msg += " | EventTime: ";
 249     msg += anna::time::functions::currentTimeAsString();
 250     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 251   );
 252
 253   // Write reception
 254   if(my_app.logEnabled()) my_app.writeLogFile(message, "recvfe", clientSession->asString(), a_codecEngine);
 255 }