]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/extra/m_mssql.cpp
Attach to events and register services in init()
[user/henk/code/inspircd.git] / src / modules / extra / m_mssql.cpp
index 742921966085b589bc93e32baae8f00333ae314f..27410e95be0ac2fdd1f1941bc4d4b22a3ed96541 100644 (file)
@@ -1,16 +1,26 @@
-/*              +------------------------------------+
- *              | Inspire Internet Relay Chat Daemon |
- *              +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *     InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2008-2009 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008-2009 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
  *
- * This program is free but copyrighted software; see
- *                       the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #include "inspircd.h"
 #include <tds.h>
 #include <tdsconvert.h>
@@ -27,8 +37,6 @@
 
 class SQLConn;
 class MsSQLResult;
-class ResultNotifier;
-class MsSQLListener;
 class ModuleMsSQL;
 
 typedef std::map<std::string, SQLConn*> ConnMap;
@@ -37,7 +45,7 @@ typedef std::deque<MsSQLResult*> ResultQueue;
 unsigned long count(const char * const str, char a)
 {
        unsigned long n = 0;
-       for (const char *p = reinterpret_cast<const char *>(str); *p; ++p)
+       for (const char *p = str; *p; ++p)
        {
                if (*p == '?')
                        ++n;
@@ -45,86 +53,21 @@ unsigned long count(const char * const str, char a)
        return n;
 }
 
-ResultNotifier* notifier = NULL;
-MsSQLListener* listener = NULL;
-int QueueFD = -1;
-
 ConnMap connections;
-Mutex* QueueMutex;
 Mutex* ResultsMutex;
 Mutex* LoggingMutex;
 
-class QueryThread : public Thread
+class QueryThread : public SocketThread
 {
   private:
-       ModuleMsSQL* Parent;
-       InspIRCd* ServerInstance;
+       ModuleMsSQL* const Parent;
   public:
-       QueryThread(InspIRCd* si, ModuleMsSQL* mod)
-       : Thread(), Parent(mod), ServerInstance(si)
-       {
-       }
+       QueryThread(ModuleMsSQL* mod) : Parent(mod) { }
        ~QueryThread() { }
        virtual void Run();
+       virtual void OnNotify();
 };
 
-class ResultNotifier : public BufferedSocket
-{
-       ModuleMsSQL* mod;
-
- public:
-       ResultNotifier(ModuleMsSQL* m, InspIRCd* SI, int newfd, char* ip) : BufferedSocket(SI, newfd, ip), mod(m)
-       {
-       }
-
-       virtual bool OnDataReady()
-       {
-               char data = 0;
-               if (ServerInstance->SE->Recv(this, &data, 1, 0) > 0)
-               {
-                       Dispatch();
-                       return true;
-               }
-               return false;
-       }
-
-       void Dispatch();
-};
-
-class MsSQLListener : public ListenSocketBase
-{
-       ModuleMsSQL* Parent;
-       irc::sockets::insp_sockaddr sock_us;
-       socklen_t uslen;
-       FileReader* index;
-
- public:
-       MsSQLListener(ModuleMsSQL* P, InspIRCd* Instance, int port, const std::string &addr) : ListenSocketBase(Instance, port, addr), Parent(P)
-       {
-               uslen = sizeof(sock_us);
-               if (getsockname(this->fd,(sockaddr*)&sock_us,&uslen))
-               {
-                       throw ModuleException("Could not getsockname() to find out port number for ITC port");
-               }
-       }
-
-       virtual void OnAcceptReady(const std::string &ipconnectedto, int nfd, const std::string &incomingip)
-       {
-               new ResultNotifier(this->Parent, this->ServerInstance, nfd, (char *)ipconnectedto.c_str()); // XXX unsafe casts suck
-       }
-
-       /* Using getsockname and ntohs, we can determine which port number we were allocated */
-       int GetPort()
-       {
-#ifdef IPV6
-               return ntohs(sock_us.sin6_port);
-#else
-               return ntohs(sock_us.sin_port);
-#endif
-       }
-};
-
-
 class MsSQLResult : public SQLresult
 {
  private:
@@ -289,15 +232,12 @@ class MsSQLResult : public SQLresult
        {
                delete fl;
        }
-
-
 };
 
 class SQLConn : public classbase
 {
  private:
        ResultQueue results;
-       InspIRCd* ServerInstance;
        Module* mod;
        SQLhost host;
        TDSLOGIN* login;
@@ -307,8 +247,8 @@ class SQLConn : public classbase
  public:
        QueryQueue queue;
 
-       SQLConn(InspIRCd* SI, Module* m, const SQLhost& hi)
-       : ServerInstance(SI), mod(m), host(hi), login(NULL), sock(NULL), context(NULL)
+       SQLConn(Module* m, const SQLhost& hi)
+       : mod(m), host(hi), login(NULL), sock(NULL), context(NULL)
        {
                if (OpenDB())
                {
@@ -345,7 +285,7 @@ class SQLConn : public classbase
                CloseDB();
        }
 
-       SQLerror Query(SQLrequest &req)
+       SQLerror Query(SQLrequestreq)
        {
                if (!sock)
                        return SQLerror(SQL_BAD_CONN, "Socket was NULL, check if SQL server is running.");
@@ -362,17 +302,17 @@ class SQLConn : public classbase
                /* The length of the longest parameter */
                maxparamlen = 0;
 
-               for(ParamL::iterator i = req.query.p.begin(); i != req.query.p.end(); i++)
+               for(ParamL::iterator i = req->query.p.begin(); i != req->query.p.end(); i++)
                {
                        if (i->size() > maxparamlen)
                                maxparamlen = i->size();
                }
 
                /* How many params are there in the query? */
-               paramcount = count(req.query.q.c_str(), '?');
+               paramcount = count(req->query.q.c_str(), '?');
 
                /* This stores copy of params to be inserted with using numbered params 1;3B*/
-               ParamL paramscopy(req.query.p);
+               ParamL paramscopy(req->query.p);
 
                /* To avoid a lot of allocations, allocate enough memory for the biggest the escaped query could possibly be.
                 * sizeofquery + (maxtotalparamlength*2) + 1
@@ -380,12 +320,12 @@ class SQLConn : public classbase
                 * The +1 is for null-terminating the string
                 */
 
-               query = new char[req.query.q.length() + (maxparamlen*paramcount*2) + 1];
+               query = new char[req->query.q.length() + (maxparamlen*paramcount*2) + 1];
                queryend = query;
 
-               for(unsigned long i = 0; i < req.query.q.length(); i++)
+               for(unsigned long i = 0; i < req->query.q.length(); i++)
                {
-                       if(req.query.q[i] == '?')
+                       if(req->query.q[i] == '?')
                        {
                                /* We found a place to substitute..what fun.
                                 * use mssql calls to escape and write the
@@ -408,11 +348,11 @@ class SQLConn : public classbase
                                /* Let's check if it's a numbered param. And also calculate it's number.
                                 */
 
-                               while ((i < req.query.q.length() - 1) && (req.query.q[i+1] >= '0') && (req.query.q[i+1] <= '9'))
+                               while ((i < req->query.q.length() - 1) && (req->query.q[i+1] >= '0') && (req->query.q[i+1] <= '9'))
                                {
                                        numbered = true;
                                        ++i;
-                                       paramnum = paramnum * 10 + req.query.q[i] - '0';
+                                       paramnum = paramnum * 10 + req->query.q[i] - '0';
                                }
 
                                if (paramnum > paramscopy.size() - 1)
@@ -448,13 +388,13 @@ class SQLConn : public classbase
                                        }
                                        delete[] escaped;
                                }
-                               else if (req.query.p.size())
+                               else if (req->query.p.size())
                                {
                                        /* Custom escaping for this one. converting ' to '' should make SQL Server happy. Ugly but fast :]
                                         */
-                                       char* escaped = new char[(req.query.p.front().length() * 2) + 1];
+                                       char* escaped = new char[(req->query.p.front().length() * 2) + 1];
                                        char* escend = escaped;
-                                       for (std::string::iterator p = req.query.p.front().begin(); p < req.query.p.front().end(); p++)
+                                       for (std::string::iterator p = req->query.p.front().begin(); p < req->query.p.front().end(); p++)
                                        {
                                                if (*p == '\'')
                                                {
@@ -473,31 +413,31 @@ class SQLConn : public classbase
                                                queryend++;
                                        }
                                        delete[] escaped;
-                                       req.query.p.pop_front();
+                                       req->query.p.pop_front();
                                }
                                else
                                        break;
                        }
                        else
                        {
-                               *queryend = req.query.q[i];
+                               *queryend = req->query.q[i];
                                queryend++;
                        }
                }
                *queryend = 0;
-               req.query.q = query;
+               req->query.q = query;
 
-               MsSQLResult* res = new MsSQLResult((Module*)mod, req.GetSource(), req.id);
+               MsSQLResult* res = new MsSQLResult((Module*)mod, req->source, req->id);
                res->dbid = host.id;
-               res->query = req.query.q;
+               res->query = req->query.q;
 
-               char* msquery = strdup(req.query.q.data());
+               char* msquery = strdup(req->query.q.data());
                LoggingMutex->Lock();
                ServerInstance->Logs->Log("m_mssql",DEBUG,"doing Query: %s",msquery);
                LoggingMutex->Unlock();
                if (tds_submit_query(sock, msquery) != TDS_SUCCEED)
                {
-                       std::string error("failed to execute: "+std::string(req.query.q.data()));
+                       std::string error("failed to execute: "+std::string(req->query.q.data()));
                        delete[] query;
                        delete res;
                        free(msquery);
@@ -569,7 +509,6 @@ class SQLConn : public classbase
                ResultsMutex->Lock();
                results.push_back(res);
                ResultsMutex->Unlock();
-               SendNotify();
                return SQLerror();
        }
 
@@ -577,7 +516,7 @@ class SQLConn : public classbase
        {
                SQLConn* sc = (SQLConn*)pContext->parent;
                LoggingMutex->Lock();
-               sc->ServerInstance->Logs->Log("m_mssql", DEBUG, "Message for DB with id: %s -> %s", sc->host.id.c_str(), pMessage->message);
+               ServerInstance->Logs->Log("m_mssql", DEBUG, "Message for DB with id: %s -> %s", sc->host.id.c_str(), pMessage->message);
                LoggingMutex->Unlock();
                return 0;
        }
@@ -586,7 +525,7 @@ class SQLConn : public classbase
        {
                SQLConn* sc = (SQLConn*)pContext->parent;
                LoggingMutex->Lock();
-               sc->ServerInstance->Logs->Log("m_mssql", DEFAULT, "Error for DB with id: %s -> %s", sc->host.id.c_str(), pMessage->message);
+               ServerInstance->Logs->Log("m_mssql", DEFAULT, "Error for DB with id: %s -> %s", sc->host.id.c_str(), pMessage->message);
                LoggingMutex->Unlock();
                return 0;
        }
@@ -666,7 +605,7 @@ class SQLConn : public classbase
                {
                        MsSQLResult* res = results[0];
                        ResultsMutex->Lock();
-                       if (res->GetDest())
+                       if (res->dest)
                        {
                                res->Send();
                        }
@@ -693,44 +632,10 @@ class SQLConn : public classbase
                }
        }
 
-       void SendNotify()
-       {
-               if (QueueFD < 0)
-               {
-                       if ((QueueFD = socket(AF_FAMILY, SOCK_STREAM, 0)) == -1)
-                       {
-                               /* crap, we're out of sockets... */
-                               return;
-                       }
-
-                       irc::sockets::insp_sockaddr addr;
-
-#ifdef IPV6
-                       irc::sockets::insp_aton("::1", &addr.sin6_addr);
-                       addr.sin6_family = AF_FAMILY;
-                       addr.sin6_port = htons(listener->GetPort());
-#else
-                       irc::sockets::insp_inaddr ia;
-                       irc::sockets::insp_aton("127.0.0.1", &ia);
-                       addr.sin_family = AF_FAMILY;
-                       addr.sin_addr = ia;
-                       addr.sin_port = htons(listener->GetPort());
-#endif
-
-                       if (connect(QueueFD, (sockaddr*)&addr,sizeof(addr)) == -1)
-                       {
-                               /* wtf, we cant connect to it, but we just created it! */
-                               return;
-                       }
-               }
-               char id = 0;
-               send(QueueFD, &id, 1, 0);
-       }
-
        void DoLeadingQuery()
        {
-               SQLrequest& req = queue.front();
-               req.error = Query(req);
+               SQLrequest* req = queue.front();
+               req->error = Query(req);
        }
 
 };
@@ -741,83 +646,39 @@ class ModuleMsSQL : public Module
  private:
        unsigned long currid;
        QueryThread* queryDispatcher;
+       ServiceProvider sqlserv;
 
  public:
-       ModuleMsSQL(InspIRCd* Me)
-       : Module(Me), currid(0)
+       ModuleMsSQL()
+       : currid(0), sqlserv(this, "SQL/mssql", SERVICE_DATA)
        {
-               LoggingMutex = ServerInstance->Mutexes->CreateMutex();
-               ResultsMutex = ServerInstance->Mutexes->CreateMutex();
-               QueueMutex = ServerInstance->Mutexes->CreateMutex();
-
-               ServerInstance->Modules->UseInterface("SQLutils");
-
-               if (!ServerInstance->Modules->PublishFeature("SQL", this))
-               {
-                       throw ModuleException("m_mssql: Unable to publish feature 'SQL'");
-               }
-
-               /* Create a socket on a random port. Let the tcp stack allocate us an available port */
-#ifdef IPV6
-               listener = new MsSQLListener(this, ServerInstance, 0, "::1");
-#else
-               listener = new MsSQLListener(this, ServerInstance, 0, "127.0.0.1");
-#endif
-
-               if (listener->GetFd() == -1)
-               {
-                       ServerInstance->Modules->DoneWithInterface("SQLutils");
-                       throw ModuleException("m_mssql: unable to create ITC pipe");
-               }
-               else
-               {
-                       LoggingMutex->Lock();
-                       ServerInstance->Logs->Log("m_mssql", DEBUG, "MsSQL: Interthread comms port is %d", listener->GetPort());
-                       LoggingMutex->Unlock();
-               }
+               LoggingMutex = new Mutex();
+               ResultsMutex = new Mutex();
+               queryDispatcher = new QueryThread(this);
+       }
 
+       void init()
+       {
                ReadConf();
 
-               queryDispatcher = new QueryThread(ServerInstance, this);
-               ServerInstance->Threads->Create(queryDispatcher);
+               ServerInstance->Threads->Start(queryDispatcher);
 
-               ServerInstance->Modules->PublishInterface("SQL", this);
-               Implementation eventlist[] = { I_OnRequest, I_OnRehash };
-               ServerInstance->Modules->Attach(eventlist, this, 2);
+               Implementation eventlist[] = { I_OnRehash };
+               ServerInstance->Modules->Attach(eventlist, this, 1);
+               ServerInstance->Modules->AddService(sqlserv);
        }
 
        virtual ~ModuleMsSQL()
        {
+               queryDispatcher->join();
                delete queryDispatcher;
                ClearQueue();
                ClearAllConnections();
 
-               ServerInstance->SE->DelFd(listener);
-               ServerInstance->BufferedSocketCull();
-
-               if (QueueFD >= 0)
-               {
-                       shutdown(QueueFD, 2);
-                       close(QueueFD);
-               }
-
-               if (notifier)
-               {
-                       ServerInstance->SE->DelFd(notifier);
-                       notifier->Close();
-                       ServerInstance->BufferedSocketCull();
-               }
-
-               ServerInstance->Modules->UnpublishInterface("SQL", this);
-               ServerInstance->Modules->UnpublishFeature("SQL");
-               ServerInstance->Modules->DoneWithInterface("SQLutils");
-
                delete LoggingMutex;
                delete ResultsMutex;
-               delete QueueMutex;
        }
 
-
        void SendQueue()
        {
                for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
@@ -846,16 +707,17 @@ class ModuleMsSQL : public Module
 
        bool HostInConf(const SQLhost &h)
        {
-               ConfigReader conf(ServerInstance);
-               for(int i = 0; i < conf.Enumerate("database"); i++)
+               ConfigTagList tags = ServerInstance->Config->ConfTags("database");
+               for (ConfigIter i = tags.first; i != tags.second; ++i)
                {
+                       ConfigTag* tag = i->second;
                        SQLhost host;
-                       host.id         = conf.ReadValue("database", "id", i);
-                       host.host       = conf.ReadValue("database", "hostname", i);
-                       host.port       = conf.ReadInteger("database", "port", "1433", i, true);
-                       host.name       = conf.ReadValue("database", "name", i);
-                       host.user       = conf.ReadValue("database", "username", i);
-                       host.pass       = conf.ReadValue("database", "password", i);
+                       host.id         = tag->getString("id");
+                       host.host       = tag->getString("hostname");
+                       host.port       = tag->getInt("port", 1433);
+                       host.name       = tag->getString("name");
+                       host.user       = tag->getString("username");
+                       host.pass       = tag->getString("password");
                        if (h == host)
                                return true;
                }
@@ -866,17 +728,18 @@ class ModuleMsSQL : public Module
        {
                ClearOldConnections();
 
-               ConfigReader conf(ServerInstance);
-               for(int i = 0; i < conf.Enumerate("database"); i++)
+               ConfigTagList tags = ServerInstance->Config->ConfTags("database");
+               for (ConfigIter i = tags.first; i != tags.second; ++i)
                {
+                       ConfigTag* tag = i->second;
                        SQLhost host;
 
-                       host.id         = conf.ReadValue("database", "id", i);
-                       host.host       = conf.ReadValue("database", "hostname", i);
-                       host.port       = conf.ReadInteger("database", "port", "1433", i, true);
-                       host.name       = conf.ReadValue("database", "name", i);
-                       host.user       = conf.ReadValue("database", "username", i);
-                       host.pass       = conf.ReadValue("database", "password", i);
+                       host.id         = tag->getString("id");
+                       host.host       = tag->getString("hostname");
+                       host.port       = tag->getInt("port", 1433);
+                       host.name       = tag->getString("name");
+                       host.user       = tag->getString("username");
+                       host.pass       = tag->getString("password");
 
                        if (HasHost(host))
                                continue;
@@ -897,7 +760,7 @@ class ModuleMsSQL : public Module
 
                SQLConn* newconn;
 
-               newconn = new SQLConn(ServerInstance, this, hi);
+               newconn = new SQLConn(this, hi);
 
                connections.insert(std::make_pair(hi.id, newconn));
        }
@@ -919,49 +782,39 @@ class ModuleMsSQL : public Module
 
        void ClearAllConnections()
        {
-               ConnMap::iterator i;
-               while ((i = connections.begin()) != connections.end())
-               {
-                       connections.erase(i);
+               for(ConnMap::iterator i = connections.begin(); i != connections.end(); ++i)
                        delete i->second;
-               }
+               connections.clear();
        }
 
-       virtual void OnRehash(User* user, const std::string &parameter)
+       virtual void OnRehash(User* user)
        {
-               QueueMutex->Lock();
+               queryDispatcher->LockQueue();
                ReadConf();
-               QueueMutex->Unlock();
+               queryDispatcher->UnlockQueueWakeup();
        }
 
-       virtual const char* OnRequest(Request* request)
+       void OnRequest(Request& request)
        {
-               if(strcmp(SQLREQID, request->GetId()) == 0)
+               if(strcmp(SQLREQID, request.id) == 0)
                {
-                       SQLrequest* req = (SQLrequest*)request;
+                       SQLrequest* req = (SQLrequest*)&request;
 
-                       QueueMutex->Lock();
+                       queryDispatcher->LockQueue();
 
                        ConnMap::iterator iter;
 
-                       const char* returnval = NULL;
-
                        if((iter = connections.find(req->dbid)) != connections.end())
                        {
                                req->id = NewID();
-                               iter->second->queue.push(*req);
-                               returnval= SQLSUCCESS;
+                               iter->second->queue.push(new SQLrequest(*req));
                        }
                        else
                        {
                                req->error.Id(SQL_BAD_DBID);
                        }
-
-                       QueueMutex->Unlock();
-
-                       return returnval;
+                       queryDispatcher->UnlockQueueWakeup();
                }
-               return NULL;
        }
 
        unsigned long NewID()
@@ -974,22 +827,22 @@ class ModuleMsSQL : public Module
 
        virtual Version GetVersion()
        {
-               return Version("$Id$", VF_VENDOR | VF_SERVICEPROVIDER, API_VERSION);
+               return Version("MsSQL provider", VF_VENDOR);
        }
 
 };
 
-void ResultNotifier::Dispatch()
+void QueryThread::OnNotify()
 {
-       mod->SendQueue();
+       Parent->SendQueue();
 }
 
 void QueryThread::Run()
 {
+       this->LockQueue();
        while (this->GetExitFlag() == false)
        {
                SQLConn* conn = NULL;
-               QueueMutex->Lock();
                for (ConnMap::iterator i = connections.begin(); i != connections.end(); i++)
                {
                        if (i->second->queue.totalsize())
@@ -998,16 +851,20 @@ void QueryThread::Run()
                                break;
                        }
                }
-               QueueMutex->Unlock();
                if (conn)
                {
+                       this->UnlockQueue();
                        conn->DoLeadingQuery();
-                       QueueMutex->Lock();
+                       this->NotifyParent();
+                       this->LockQueue();
                        conn->queue.pop();
-                       QueueMutex->Unlock();
                }
-               usleep(1000);
+               else
+               {
+                       this->WaitForQueue();
+               }
        }
+       this->UnlockQueue();
 }
 
 MODULE_INIT(ModuleMsSQL)