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 #include <anna/diameter.comm/ClientSession.hpp>
  15 #include <anna/diameter.comm/OriginHost.hpp>
  16 #include <anna/diameter/helpers/base/functions.hpp>
  17 #include <anna/diameter/helpers/dcca/functions.hpp>
  18
  19 // Process
  20 #include <MyDiameterEngine.hpp>
  21 #include <MyDiameterEntity.hpp>
  22 #include <MyLocalServer.hpp>
  23 #include <Launcher.hpp>
  24 #include <anna/testing/TestManager.hpp>
  25
  26
  27 void MyDiameterEntity::eventRequestRetransmission(const anna::diameter::comm::ClientSession* clientSession, anna::diameter::comm::Message *request) throw() {
  28
  29   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventRequestRetransmission", ANNA_FILE_LOCATION));
  30
  31   // Base class:
  32   Entity::eventRequestRetransmission(clientSession, request); // warning trace
  33
  34   // Performance stats:
  35   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
  36   anna::diameter::comm::OriginHost * my_node = my_app.getOriginHost(getEngine()->getOriginHostName());
  37   // CommandId:
  38   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(request->getBody());
  39   LOGDEBUG
  40   (
  41     std::string msg = "Request retransmitted: ";
  42     msg += anna::diameter::functions::commandIdAsPairString(cid);
  43     msg += " | DiameterServer: ";
  44     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
  45     msg += " | EventTime: ";
  46     msg += anna::time::functions::currentTimeAsString();
  47     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
  48   );
  49
  50   // Write retransmission
  51   if(my_node->logEnabled()) my_node->writeLogFile(request->getBody(), "retry", clientSession->asString());
  52 }
  53
  54
  55 void MyDiameterEntity::eventRequest(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
  56 throw(anna::RuntimeException) {
  57   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventRequest", ANNA_FILE_LOCATION));
  58   // Performance stats:
  59   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
  60   anna::diameter::comm::OriginHost * my_node = my_app.getOriginHost(getEngine()->getOriginHostName());
  61
  62   // CommandId:
  63   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
  64   LOGDEBUG
  65   (
  66     std::string msg = "Request received: ";
  67     msg += anna::diameter::functions::commandIdAsPairString(cid);
  68     msg += " | DiameterServer: ";
  69     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
  70     msg += " | EventTime: ";
  71     msg += anna::time::functions::currentTimeAsString();
  72     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
  73   );
  74
  75   // Write reception
  76   if(my_node->logEnabled()) my_node->writeLogFile(message, "recvfe", clientSession->asString());
  77
  78   // Lookup reacting answers list:
  79   int code = cid.first;
  80   anna::diameter::codec::Message *answer_message = a_reactingAnswers.getMessage(code);
  81   if (answer_message) {
  82     // Prepare answer:
  83     my_app.getCommunicator()->prepareAnswer(answer_message, message);
  84     anna::diameter::comm::Message *msg;
  85
  86     try {
  87       msg = my_node->createCommMessage();
  88       msg->setBody(answer_message->code());
  89       /* response = NULL =*/clientSession->send(msg);
  90
  91       if(my_node->logEnabled()) my_node->writeLogFile(*answer_message, "sent2e", clientSession->asString());
  92     } catch(anna::RuntimeException &ex) {
  93       ex.trace();
  94
  95       if(my_node->logEnabled()) my_node->writeLogFile(*answer_message, "send2eError", clientSession->asString());
  96     }
  97
  98     // release msg
  99     my_node->releaseCommMessage(msg);
 100
 101     // Pop front the reacting answer:
 102     a_reactingAnswers.nextMessage(code);
 103     return;
 104   }
 105
 106   LOGDEBUG
 107   (
 108     std::string msg = "No answers programmed (maybe sold out) for request coming from entity: ";
 109     msg += anna::diameter::functions::commandIdAsPairString(cid);
 110     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 111   );
 112
 113   // not found: forward to client (if exists)
 114   // Forward to client:
 115   MyLocalServer *localServer = (MyLocalServer *)my_node->getDiameterServer();
 116
 117   if(localServer && (cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) /* don't forward CER */) {
 118     try {
 119       anna::diameter::comm::Message *msg = my_node->createCommMessage();
 120       msg->forwardEndToEnd(); // end-to-end will be kept
 121       msg->setBody(message);
 122       msg->setRequestClientSessionKey(clientSession->getKey());
 123       bool success = localServer->send(msg);
 124
 125       // Detailed log:
 126       if(my_node->logEnabled()) {
 127         anna::diameter::comm::ServerSession *usedServerSession = localServer->getLastUsedResource();
 128         std::string detail = usedServerSession ? usedServerSession->asString() : "<null server session>"; // esto no deberia ocurrir
 129         my_node->writeLogFile(message, (success ? "fwd2c" : "fwd2cError"), detail);
 130       }
 131     } catch(anna::RuntimeException &ex) {
 132       ex.trace();
 133     }
 134   }
 135
 136   // Testing:
 137   anna::testing::TestManager::instantiate().receiveMessage(message, clientSession);
 138 }
 139
 140 void MyDiameterEntity::eventResponse(const anna::diameter::comm::Response &response)
 141 throw(anna::RuntimeException) {
 142   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventResponse", ANNA_FILE_LOCATION));
 143   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
 144   anna::diameter::comm::OriginHost *my_node = my_app.getOriginHost(getEngine()->getOriginHostName());
 145   anna::diameter::comm::ClassCode::_v code = response.getClassCode();
 146   anna::diameter::comm::Response::ResultCode::_v result = response.getResultCode();
 147   anna::diameter::comm::Message* request = const_cast<anna::diameter::comm::Message*>(response.getRequest());
 148   const anna::DataBlock* message = response.getMessage();
 149   const anna::diameter::comm::ClientSession *clientSession = static_cast<const anna::diameter::comm::ClientSession *>(response.getSession());
 150   bool contextExpired = (result == anna::diameter::comm::Response::ResultCode::Timeout);
 151   bool isUnavailable = (result == anna::diameter::comm::Response::ResultCode::DiameterUnavailable);
 152   bool isOK = (result == anna::diameter::comm::Response::ResultCode::Success);
 153
 154   // CommandId:
 155   anna::diameter::CommandId request_cid = request->getCommandId();
 156   LOGDEBUG
 157   (
 158     std::string msg = "Response received for original diameter request: ";
 159     msg += anna::diameter::functions::commandIdAsPairString(request_cid);
 160     msg += " | Response: ";
 161     msg += response.asString();
 162     msg += " | DiameterServer: ";
 163     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
 164     msg += " | EventTime: ";
 165     msg += anna::time::functions::currentTimeAsString();
 166     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 167   );
 168
 169   if(isUnavailable) {
 170     //if (isApplicationMessage)
 171     LOGWARNING(anna::Logger::warning("Diameter entity unavailable for Diameter Request", ANNA_FILE_LOCATION));
 172   }
 173
 174   if(contextExpired) {
 175     //if (isApplicationMessage)
 176     LOGWARNING(anna::Logger::warning("Context Expired for Diameter Request which was sent to the entity", ANNA_FILE_LOCATION));
 177
 178     if(request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) {  // don't trace CEA
 179       if(my_node->logEnabled()) my_node->writeLogFile(*request, "req2e-expired", clientSession->asString());
 180     }
 181   }
 182
 183   if(isOK) {
 184     LOGDEBUG(
 185       std::string msg = "Received response for diameter message:  ";
 186       msg += anna::diameter::functions::commandIdAsPairString(request_cid);
 187       anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 188     );
 189
 190     // Write reception
 191     if(request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) {  // don't trace CEA
 192       if(my_node->logEnabled()) {
 193         my_node->writeLogFile(*message, "recvfe", clientSession->asString());
 194       }
 195     }
 196
 197     // Forward to client:
 198     MyLocalServer *localServer = (MyLocalServer *)my_node->getDiameterServer();
 199
 200     if(localServer && (request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) /* don't forward CEA */) {
 201       anna::diameter::comm::Message *msg;
 202
 203       try {
 204         msg = my_node->createCommMessage();
 205         msg->forwardEndToEnd(); // end-to-end will be kept
 206         msg->setBody(*message);
 207         bool success = localServer->send(msg, request->getRequestServerSessionKey());
 208
 209         // Detailed log:
 210         anna::diameter::comm::ServerSession *usedServerSession = my_node->getCommEngine()->findServerSession(request->getRequestServerSessionKey());
 211         std::string detail = usedServerSession ? usedServerSession->asString() : "<null server session>"; // esto no deberia ocurrir
 212
 213         if(my_node->logEnabled()) {
 214           my_node->writeLogFile(*message, (success ? "fwd2c" : "fwd2cError"), detail);
 215         }
 216       } catch(anna::RuntimeException &ex) {
 217         ex.trace();
 218       }
 219
 220       // release msgs
 221       my_node->releaseCommMessage(msg);
 222       my_node->releaseCommMessage(request);
 223     }
 224   }
 225
 226   // Triggering burst:
 227   if(isOK || contextExpired) my_node->sendBurstMessage();
 228
 229   // Testing:
 230   if(isOK) anna::testing::TestManager::instantiate().receiveMessage(*message, clientSession);
 231 }
 232
 233 void MyDiameterEntity::eventUnknownResponse(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
 234 throw(anna::RuntimeException) {
 235   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventUnknownResponse", ANNA_FILE_LOCATION));
 236   // Performance stats:
 237   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
 238   anna::diameter::comm::OriginHost * my_node = my_app.getOriginHost(getEngine()->getOriginHostName());
 239   // CommandId:
 240   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
 241   LOGDEBUG
 242   (
 243     std::string msg = "Out-of-context response received from entity: ";
 244     msg += anna::diameter::functions::commandIdAsPairString(cid);
 245     msg += " | DiameterServer: ";
 246     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
 247     msg += " | EventTime: ";
 248     msg += anna::time::functions::currentTimeAsString();
 249     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 250   );
 251
 252   // Write reception
 253   if(my_node->logEnabled()) my_node->writeLogFile(message, "recvfe-ans-unknown", clientSession->asString());
 254 }
 255
 256 void MyDiameterEntity::eventDPA(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
 257 throw(anna::RuntimeException) {
 258   LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventDPA", ANNA_FILE_LOCATION));
 259   // Performance stats:
 260   Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
 261   anna::diameter::comm::OriginHost * my_node = my_app.getOriginHost(getEngine()->getOriginHostName());
 262   // CommandId:
 263   anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
 264   LOGDEBUG
 265   (
 266     std::string msg = "Disconnect-Peer-Answer received from entity: ";
 267     msg += anna::diameter::functions::commandIdAsPairString(cid);
 268     msg += " | DiameterServer: ";
 269     msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
 270     msg += " | EventTime: ";
 271     msg += anna::time::functions::currentTimeAsString();
 272     anna::Logger::debug(msg, ANNA_FILE_LOCATION);
 273   );
 274
 275   // Write reception
 276   if(my_node->logEnabled()) my_node->writeLogFile(message, "recvfe", clientSession->asString());
 277
 278   // Testing:
 279   anna::testing::TestManager::instantiate().receiveMessage(message, clientSession);
 280 }