+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * InspIRCd: (C) 2002-2008 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include <cstdlib>
+#include <sstream>
+#include <libpq-fe.h>
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+#include "configreader.h"
+#include "m_sqlv2.h"
+
+/* $ModDesc: PostgreSQL Service Provider module for all other m_sql* modules, uses v2 of the SQL API */
+/* $CompileFlags: -Iexec("pg_config --includedir") eval("my $s = `pg_config --version`;$s =~ /^.*?(\d+)\.(\d+)\.(\d+).*?$/;my $v = hex(sprintf("0x%02x%02x%02x", $1, $2, $3));print "-DPGSQL_HAS_ESCAPECONN" if(($v >= 0x080104) || ($v >= 0x07030F && $v < 0x070400) || ($v >= 0x07040D && $v < 0x080000) || ($v >= 0x080008 && $v < 0x080100));") */
+/* $LinkerFlags: -Lexec("pg_config --libdir") -lpq */
+/* $ModDep: m_sqlv2.h */
+
+
+/* SQLConn rewritten by peavey to
+ * use EventHandler instead of
+ * BufferedSocket. This is much neater
+ * and gives total control of destroy
+ * and delete of resources.
+ */
+
+/* Forward declare, so we can have the typedef neatly at the top */
+class SQLConn;
+
+typedef std::map<std::string, SQLConn*> ConnMap;
+
+/* CREAD, Connecting and wants read event
+ * CWRITE, Connecting and wants write event
+ * WREAD, Connected/Working and wants read event
+ * WWRITE, Connected/Working and wants write event
+ * RREAD, Resetting and wants read event
+ * RWRITE, Resetting and wants write event
+ */
+enum SQLstatus { CREAD, CWRITE, WREAD, WWRITE, RREAD, RWRITE };
+
+/** SQLhost::GetDSN() - Overload to return correct DSN for PostgreSQL
+ */
+std::string SQLhost::GetDSN()
+{
+ std::ostringstream conninfo("connect_timeout = '2'");
+
+ if (ip.length())
+ conninfo << " hostaddr = '" << ip << "'";
+
+ if (port)
+ conninfo << " port = '" << port << "'";
+
+ if (name.length())
+ conninfo << " dbname = '" << name << "'";
+
+ if (user.length())
+ conninfo << " user = '" << user << "'";
+
+ if (pass.length())
+ conninfo << " password = '" << pass << "'";
+
+ if (ssl)
+ {
+ conninfo << " sslmode = 'require'";
+ }
+ else
+ {
+ conninfo << " sslmode = 'disable'";
+ }
+
+ return conninfo.str();
+}
+
+class ReconnectTimer : public Timer
+{
+ private:
+ Module* mod;
+ public:
+ ReconnectTimer(InspIRCd* SI, Module* m)
+ : Timer(5, SI->Time(), false), mod(m)
+ {
+ }
+ virtual void Tick(time_t TIME);
+};
+
+
+/** Used to resolve sql server hostnames
+ */
+class SQLresolver : public Resolver
+{
+ private:
+ SQLhost host;
+ Module* mod;
+ public:
+ SQLresolver(Module* m, InspIRCd* Instance, const SQLhost& hi, bool &cached)
+ : Resolver(Instance, hi.host, DNS_QUERY_FORWARD, cached, (Module*)m), host(hi), mod(m)
+ {
+ }
+
+ virtual void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached, int resultnum = 0);
+
+ virtual void OnError(ResolverError e, const std::string &errormessage)
+ {
+ ServerInstance->Logs->Log("m_pgsql",DEBUG, "PgSQL: DNS lookup failed (%s), dying horribly", errormessage.c_str());
+ }
+};
+
+/** PgSQLresult is a subclass of the mostly-pure-virtual class SQLresult.
+ * All SQL providers must create their own subclass and define it's methods using that
+ * database library's data retriveal functions. The aim is to avoid a slow and inefficient process
+ * of converting all data to a common format before it reaches the result structure. This way
+ * data is passes to the module nearly as directly as if it was using the API directly itself.
+ */
+
+class PgSQLresult : public SQLresult
+{
+ PGresult* res;
+ int currentrow;
+ int rows;
+ int cols;
+
+ SQLfieldList* fieldlist;
+ SQLfieldMap* fieldmap;
+public:
+ PgSQLresult(Module* self, Module* to, unsigned long rid, PGresult* result)
+ : SQLresult(self, to, rid), res(result), currentrow(0), fieldlist(NULL), fieldmap(NULL)
+ {
+ rows = PQntuples(res);
+ cols = PQnfields(res);
+ }
+
+ ~PgSQLresult()
+ {
+ /* If we allocated these, free them... */
+ if(fieldlist)
+ delete fieldlist;
+
+ if(fieldmap)
+ delete fieldmap;
+
+ PQclear(res);
+ }
+
+ virtual int Rows()
+ {
+ if(!cols && !rows)
+ {
+ return atoi(PQcmdTuples(res));
+ }
+ else
+ {
+ return rows;
+ }
+ }
+
+ virtual int Cols()
+ {
+ return PQnfields(res);
+ }
+
+ virtual std::string ColName(int column)
+ {
+ char* name = PQfname(res, column);
+
+ return (name) ? name : "";
+ }
+
+ virtual int ColNum(const std::string &column)
+ {
+ int n = PQfnumber(res, column.c_str());
+
+ if(n == -1)
+ {
+ throw SQLbadColName();
+ }
+ else
+ {
+ return n;
+ }
+ }
+
+ virtual SQLfield GetValue(int row, int column)
+ {
+ char* v = PQgetvalue(res, row, column);
+
+ if(v)
+ {
+ return SQLfield(std::string(v, PQgetlength(res, row, column)), PQgetisnull(res, row, column));
+ }
+ else
+ {
+ throw SQLbadColName();
+ }
+ }
+
+ virtual SQLfieldList& GetRow()
+ {
+ /* In an effort to reduce overhead we don't actually allocate the list
+ * until the first time it's needed...so...
+ */
+ if(fieldlist)
+ {
+ fieldlist->clear();
+ }
+ else
+ {
+ fieldlist = new SQLfieldList;
+ }
+
+ if(currentrow < PQntuples(res))
+ {
+ int ncols = PQnfields(res);
+
+ for(int i = 0; i < ncols; i++)
+ {
+ fieldlist->push_back(GetValue(currentrow, i));
+ }
+
+ currentrow++;
+ }
+
+ return *fieldlist;
+ }
+
+ virtual SQLfieldMap& GetRowMap()
+ {
+ /* In an effort to reduce overhead we don't actually allocate the map
+ * until the first time it's needed...so...
+ */
+ if(fieldmap)
+ {
+ fieldmap->clear();
+ }
+ else
+ {
+ fieldmap = new SQLfieldMap;
+ }
+
+ if(currentrow < PQntuples(res))
+ {
+ int ncols = PQnfields(res);
+
+ for(int i = 0; i < ncols; i++)
+ {
+ fieldmap->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
+ }
+
+ currentrow++;
+ }
+
+ return *fieldmap;
+ }
+
+ virtual SQLfieldList* GetRowPtr()
+ {
+ SQLfieldList* fl = new SQLfieldList;
+
+ if(currentrow < PQntuples(res))
+ {
+ int ncols = PQnfields(res);
+
+ for(int i = 0; i < ncols; i++)
+ {
+ fl->push_back(GetValue(currentrow, i));
+ }
+
+ currentrow++;
+ }
+
+ return fl;
+ }
+
+ virtual SQLfieldMap* GetRowMapPtr()
+ {
+ SQLfieldMap* fm = new SQLfieldMap;
+
+ if(currentrow < PQntuples(res))
+ {
+ int ncols = PQnfields(res);
+
+ for(int i = 0; i < ncols; i++)
+ {
+ fm->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
+ }
+
+ currentrow++;
+ }
+
+ return fm;
+ }
+
+ virtual void Free(SQLfieldMap* fm)
+ {
+ delete fm;
+ }
+
+ virtual void Free(SQLfieldList* fl)
+ {
+ delete fl;
+ }
+};
+
+/** SQLConn represents one SQL session.
+ */
+class SQLConn : public EventHandler
+{
+ private:
+ InspIRCd* Instance;
+ SQLhost confhost; /* The <database> entry */
+ Module* us; /* Pointer to the SQL provider itself */
+ PGconn* sql; /* PgSQL database connection handle */
+ SQLstatus status; /* PgSQL database connection status */
+ bool qinprog; /* If there is currently a query in progress */
+ QueryQueue queue; /* Queue of queries waiting to be executed on this connection */
+ time_t idle; /* Time we last heard from the database */
+
+ public:
+ SQLConn(InspIRCd* SI, Module* self, const SQLhost& hi)
+ : EventHandler(), Instance(SI), confhost(hi), us(self), sql(NULL), status(CWRITE), qinprog(false)
+ {
+ idle = this->Instance->Time();
+ if(!DoConnect())
+ {
+ Instance->Logs->Log("m_pgsql",DEFAULT, "WARNING: Could not connect to database with id: " + ConvToStr(hi.id));
+ DelayReconnect();
+ }
+ }
+
+ ~SQLConn()
+ {
+ Close();
+ }
+
+ virtual void HandleEvent(EventType et, int errornum)
+ {
+ switch (et)
+ {
+ case EVENT_READ:
+ OnDataReady();
+ break;
+
+ case EVENT_WRITE:
+ OnWriteReady();
+ break;
+
+ case EVENT_ERROR:
+ DelayReconnect();
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ bool DoConnect()
+ {
+ if(!(sql = PQconnectStart(confhost.GetDSN().c_str())))
+ return false;
+
+ if(PQstatus(sql) == CONNECTION_BAD)
+ return false;
+
+ if(PQsetnonblocking(sql, 1) == -1)
+ return false;
+
+ /* OK, we've initalised the connection, now to get it hooked into the socket engine
+ * and then start polling it.
+ */
+ this->fd = PQsocket(sql);
+
+ if(this->fd <= -1)
+ return false;
+
+ if (!this->Instance->SE->AddFd(this))
+ {
+ Instance->Logs->Log("m_pgsql",DEBUG, "BUG: Couldn't add pgsql socket to socket engine");
+ return false;
+ }
+
+ /* Socket all hooked into the engine, now to tell PgSQL to start connecting */
+ return DoPoll();
+ }
+
+ bool DoPoll()
+ {
+ switch(PQconnectPoll(sql))
+ {
+ case PGRES_POLLING_WRITING:
+ Instance->SE->WantWrite(this);
+ status = CWRITE;
+ return true;
+ case PGRES_POLLING_READING:
+ status = CREAD;
+ return true;
+ case PGRES_POLLING_FAILED:
+ return false;
+ case PGRES_POLLING_OK:
+ status = WWRITE;
+ return DoConnectedPoll();
+ default:
+ return true;
+ }
+ }
+
+ bool DoConnectedPoll()
+ {
+ if(!qinprog && queue.totalsize())
+ {
+ /* There's no query currently in progress, and there's queries in the queue. */
+ SQLrequest& query = queue.front();
+ DoQuery(query);
+ }
+
+ if(PQconsumeInput(sql))
+ {
+ /* We just read stuff from the server, that counts as it being alive
+ * so update the idle-since time :p
+ */
+ idle = this->Instance->Time();
+
+ if (PQisBusy(sql))
+ {
+ /* Nothing happens here */
+ }
+ else if (qinprog)
+ {
+ /* Grab the request we're processing */
+ SQLrequest& query = queue.front();
+
+ /* Get a pointer to the module we're about to return the result to */
+ Module* to = query.GetSource();
+
+ /* Fetch the result.. */
+ PGresult* result = PQgetResult(sql);
+
+ /* PgSQL would allow a query string to be sent which has multiple
+ * queries in it, this isn't portable across database backends and
+ * we don't want modules doing it. But just in case we make sure we
+ * drain any results there are and just use the last one.
+ * If the module devs are behaving there will only be one result.
+ */
+ while (PGresult* temp = PQgetResult(sql))
+ {
+ PQclear(result);
+ result = temp;
+ }
+
+ if(to)
+ {
+ /* ..and the result */
+ PgSQLresult reply(us, to, query.id, result);
+
+ /* Fix by brain, make sure the original query gets sent back in the reply */
+ reply.query = query.query.q;
+
+ switch(PQresultStatus(result))
+ {
+ case PGRES_EMPTY_QUERY:
+ case PGRES_BAD_RESPONSE:
+ case PGRES_FATAL_ERROR:
+ reply.error.Id(QREPLY_FAIL);
+ reply.error.Str(PQresultErrorMessage(result));
+ default:;
+ /* No action, other values are not errors */
+ }
+
+ reply.Send();
+
+ /* PgSQLresult's destructor will free the PGresult */
+ }
+ else
+ {
+ /* If the client module is unloaded partway through a query then the provider will set
+ * the pointer to NULL. We cannot just cancel the query as the result will still come
+ * through at some point...and it could get messy if we play with invalid pointers...
+ */
+ PQclear(result);
+ }
+ qinprog = false;
+ queue.pop();
+ DoConnectedPoll();
+ }
+ return true;
+ }
+ else
+ {
+ /* I think we'll assume this means the server died...it might not,
+ * but I think that any error serious enough we actually get here
+ * deserves to reconnect [/excuse]
+ * Returning true so the core doesn't try and close the connection.
+ */
+ DelayReconnect();
+ return true;
+ }
+ }
+
+ bool DoResetPoll()
+ {
+ switch(PQresetPoll(sql))
+ {
+ case PGRES_POLLING_WRITING:
+ Instance->SE->WantWrite(this);
+ status = CWRITE;
+ return DoPoll();
+ case PGRES_POLLING_READING:
+ status = CREAD;
+ return true;
+ case PGRES_POLLING_FAILED:
+ return false;
+ case PGRES_POLLING_OK:
+ status = WWRITE;
+ return DoConnectedPoll();
+ default:
+ return true;
+ }
+ }
+
+ bool OnDataReady()
+ {
+ /* Always return true here, false would close the socket - we need to do that ourselves with the pgsql API */
+ return DoEvent();
+ }
+
+ bool OnWriteReady()
+ {
+ /* Always return true here, false would close the socket - we need to do that ourselves with the pgsql API */
+ return DoEvent();
+ }
+
+ bool OnConnected()
+ {
+ return DoEvent();
+ }
+
+ void DelayReconnect();
+
+ bool DoEvent()
+ {
+ bool ret;
+
+ if((status == CREAD) || (status == CWRITE))
+ {
+ ret = DoPoll();
+ }
+ else if((status == RREAD) || (status == RWRITE))
+ {
+ ret = DoResetPoll();
+ }
+ else
+ {
+ ret = DoConnectedPoll();
+ }
+ return ret;
+ }
+
+ SQLerror DoQuery(SQLrequest &req)
+ {
+ if((status == WREAD) || (status == WWRITE))
+ {
+ if(!qinprog)
+ {
+ /* Parse the command string and dispatch it */
+
+ /* Pointer to the buffer we screw around with substitution in */
+ char* query;
+ /* Pointer to the current end of query, where we append new stuff */
+ char* queryend;
+ /* Total length of the unescaped parameters */
+ unsigned int paramlen;
+
+ paramlen = 0;
+
+ for(ParamL::iterator i = req.query.p.begin(); i != req.query.p.end(); i++)
+ {
+ paramlen += i->size();
+ }
+
+ /* To avoid a lot of allocations, allocate enough memory for the biggest the escaped query could possibly be.
+ * sizeofquery + (totalparamlength*2) + 1
+ *
+ * The +1 is for null-terminating the string for PQsendQuery()
+ */
+
+ query = new char[req.query.q.length() + (paramlen*2) + 1];
+ queryend = query;
+
+ /* Okay, now we have a buffer large enough we need to start copying the query into it and escaping and substituting
+ * the parameters into it...
+ */
+
+ for(unsigned int i = 0; i < req.query.q.length(); i++)
+ {
+ if(req.query.q[i] == '?')
+ {
+ /* We found a place to substitute..what fun.
+ * Use the PgSQL calls to escape and write the
+ * escaped string onto the end of our query buffer,
+ * then we "just" need to make sure queryend is
+ * pointing at the right place.
+ */
+
+ if(req.query.p.size())
+ {
+ int error = 0;
+ size_t len = 0;
+
+#ifdef PGSQL_HAS_ESCAPECONN
+ len = PQescapeStringConn(sql, queryend, req.query.p.front().c_str(), req.query.p.front().length(), &error);
+#else
+ len = PQescapeString (queryend, req.query.p.front().c_str(), req.query.p.front().length());
+#endif
+ if(error)
+ {
+ Instance->Logs->Log("m_pgsql",DEBUG, "BUG: Apparently PQescapeStringConn() failed somehow...don't know how or what to do...");
+ }
+
+ /* Incremenet queryend to the end of the newly escaped parameter */
+ queryend += len;
+
+ /* Remove the parameter we just substituted in */
+ req.query.p.pop_front();
+ }
+ else
+ {
+ Instance->Logs->Log("m_pgsql",DEBUG, "BUG: Found a substitution location but no parameter to substitute :|");
+ break;
+ }
+ }
+ else
+ {
+ *queryend = req.query.q[i];
+ queryend++;
+ }
+ }
+
+ /* Null-terminate the query */
+ *queryend = 0;
+ req.query.q = query;
+
+ if(PQsendQuery(sql, query))
+ {
+ qinprog = true;
+ delete[] query;
+ return SQLerror();
+ }
+ else
+ {
+ delete[] query;
+ return SQLerror(QSEND_FAIL, PQerrorMessage(sql));
+ }
+ }
+ }
+ return SQLerror(BAD_CONN, "Can't query until connection is complete");
+ }
+
+ SQLerror Query(const SQLrequest &req)
+ {
+ queue.push(req);
+
+ if(!qinprog && queue.totalsize())
+ {
+ /* There's no query currently in progress, and there's queries in the queue. */
+ SQLrequest& query = queue.front();
+ return DoQuery(query);
+ }
+ else
+ {
+ return SQLerror();
+ }
+ }
+
+ void OnUnloadModule(Module* mod)
+ {
+ queue.PurgeModule(mod);
+ }
+
+ const SQLhost GetConfHost()
+ {
+ return confhost;
+ }
+
+ void Close() {
+ if (!this->Instance->SE->DelFd(this))
+ {
+ if (sql && PQstatus(sql) == CONNECTION_BAD)
+ {
+ this->Instance->SE->DelFd(this, true);
+ }
+ else
+ {
+ Instance->Logs->Log("m_pgsql",DEBUG, "BUG: PQsocket cant be removed from socket engine!");
+ }
+ }
+
+ if(sql)
+ {
+ PQfinish(sql);
+ sql = NULL;
+ }
+ }
+
+};
+
+class ModulePgSQL : public Module
+{
+ private:
+ ConnMap connections;
+ unsigned long currid;
+ char* sqlsuccess;
+ ReconnectTimer* retimer;
+
+ public:
+ ModulePgSQL(InspIRCd* Me)
+ : Module::Module(Me), currid(0)
+ {
+ ServerInstance->Modules->UseInterface("SQLutils");
+
+ sqlsuccess = new char[strlen(SQLSUCCESS)+1];
+
+ strlcpy(sqlsuccess, SQLSUCCESS, strlen(SQLSUCCESS));
+
+ if (!ServerInstance->Modules->PublishFeature("SQL", this))
+ {
+ throw ModuleException("BUG: PgSQL Unable to publish feature 'SQL'");
+ }
+
+ ReadConf();
+
+ ServerInstance->Modules->PublishInterface("SQL", this);
+ Implementation eventlist[] = { I_OnUnloadModule, I_OnRequest, I_OnRehash, I_OnUserRegister, I_OnCheckReady, I_OnUserDisconnect };
+ ServerInstance->Modules->Attach(eventlist, this, 6);
+ }
+
+ virtual ~ModulePgSQL()
+ {
+ if (retimer)
+ ServerInstance->Timers->DelTimer(retimer);
+ ClearAllConnections();
+ delete[] sqlsuccess;
+ ServerInstance->Modules->UnpublishInterface("SQL", this);
+ ServerInstance->Modules->UnpublishFeature("SQL");
+ ServerInstance->Modules->DoneWithInterface("SQLutils");
+ }
+
+
+ virtual void OnRehash(User* user, const std::string ¶meter)
+ {
+ ReadConf();
+ }
+
+ bool HasHost(const SQLhost &host)
+ {
+ for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
+ {
+ if (host == iter->second->GetConfHost())
+ return true;
+ }
+ return false;
+ }
+
+ bool HostInConf(const SQLhost &h)
+ {
+ ConfigReader conf(ServerInstance);
+ for(int i = 0; i < conf.Enumerate("database"); i++)
+ {
+ SQLhost host;
+ host.id = conf.ReadValue("database", "id", i);
+ host.host = conf.ReadValue("database", "hostname", i);
+ host.port = conf.ReadInteger("database", "port", i, true);
+ host.name = conf.ReadValue("database", "name", i);
+ host.user = conf.ReadValue("database", "username", i);
+ host.pass = conf.ReadValue("database", "password", i);
+ host.ssl = conf.ReadFlag("database", "ssl", "0", i);
+ if (h == host)
+ return true;
+ }
+ return false;
+ }
+
+ void ReadConf()
+ {
+ ClearOldConnections();
+
+ ConfigReader conf(ServerInstance);
+ for(int i = 0; i < conf.Enumerate("database"); i++)
+ {
+ SQLhost host;
+ int ipvalid;
+
+ host.id = conf.ReadValue("database", "id", i);
+ host.host = conf.ReadValue("database", "hostname", i);
+ host.port = conf.ReadInteger("database", "port", i, true);
+ host.name = conf.ReadValue("database", "name", i);
+ host.user = conf.ReadValue("database", "username", i);
+ host.pass = conf.ReadValue("database", "password", i);
+ host.ssl = conf.ReadFlag("database", "ssl", "0", i);
+
+ if (HasHost(host))
+ continue;
+
+#ifdef IPV6
+ if (strchr(host.host.c_str(),':'))
+ {
+ in6_addr blargle;
+ ipvalid = inet_pton(AF_INET6, host.host.c_str(), &blargle);
+ }
+ else
+#endif
+ {
+ in_addr blargle;
+ ipvalid = inet_aton(host.host.c_str(), &blargle);
+ }
+
+ if(ipvalid > 0)
+ {
+ /* The conversion succeeded, we were given an IP and we can give it straight to SQLConn */
+ host.ip = host.host;
+ this->AddConn(host);
+ }
+ else if(ipvalid == 0)
+ {
+ /* Conversion failed, assume it's a host */
+ SQLresolver* resolver;
+
+ try
+ {
+ bool cached;
+ resolver = new SQLresolver(this, ServerInstance, host, cached);
+ ServerInstance->AddResolver(resolver, cached);
+ }
+ catch(...)
+ {
+ /* THE WORLD IS COMING TO AN END! */
+ }
+ }
+ else
+ {
+ /* Invalid address family, die horribly. */
+ ServerInstance->Logs->Log("m_pgsql",DEBUG, "BUG: insp_aton failed returning -1, oh noes.");
+ }
+ }
+ }
+
+ void ClearOldConnections()
+ {
+ ConnMap::iterator iter,safei;
+ for (iter = connections.begin(); iter != connections.end(); iter++)
+ {
+ if (!HostInConf(iter->second->GetConfHost()))
+ {
+ delete iter->second;
+ safei = iter;
+ --iter;
+ connections.erase(safei);
+ }
+ }
+ }
+
+ void ClearAllConnections()
+ {
+ ConnMap::iterator i;
+ while ((i = connections.begin()) != connections.end())
+ {
+ connections.erase(i);
+ delete i->second;
+ }
+ }
+
+ void AddConn(const SQLhost& hi)
+ {
+ if (HasHost(hi))
+ {
+ ServerInstance->Logs->Log("m_pgsql",DEFAULT, "WARNING: A pgsql connection with id: %s already exists, possibly due to DNS delay. Aborting connection attempt.", hi.id.c_str());
+ return;
+ }
+
+ SQLConn* newconn;
+
+ /* The conversion succeeded, we were given an IP and we can give it straight to SQLConn */
+ newconn = new SQLConn(ServerInstance, this, hi);
+
+ connections.insert(std::make_pair(hi.id, newconn));
+ }
+
+ void ReconnectConn(SQLConn* conn)
+ {
+ for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
+ {
+ if (conn == iter->second)
+ {
+ delete iter->second;
+ connections.erase(iter);
+ break;
+ }
+ }
+ retimer = new ReconnectTimer(ServerInstance, this);
+ ServerInstance->Timers->AddTimer(retimer);
+ }
+
+ virtual const char* OnRequest(Request* request)
+ {
+ if(strcmp(SQLREQID, request->GetId()) == 0)
+ {
+ SQLrequest* req = (SQLrequest*)request;
+ ConnMap::iterator iter;
+ if((iter = connections.find(req->dbid)) != connections.end())
+ {
+ /* Execute query */
+ req->id = NewID();
+ req->error = iter->second->Query(*req);
+
+ return (req->error.Id() == NO_ERROR) ? sqlsuccess : NULL;
+ }
+ else
+ {
+ req->error.Id(BAD_DBID);
+ return NULL;
+ }
+ }
+ return NULL;
+ }
+
+ virtual void OnUnloadModule(Module* mod, const std::string& name)
+ {
+ /* When a module unloads we have to check all the pending queries for all our connections
+ * and set the Module* specifying where the query came from to NULL. If the query has already
+ * been dispatched then when it is processed it will be dropped if the pointer is NULL.
+ *
+ * If the queries we find are not already being executed then we can simply remove them immediately.
+ */
+ for(ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
+ {
+ iter->second->OnUnloadModule(mod);
+ }
+ }
+
+ unsigned long NewID()
+ {
+ if (currid+1 == 0)
+ currid++;
+
+ return ++currid;
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version("$Id$", VF_VENDOR|VF_SERVICEPROVIDER, API_VERSION);
+ }
+};
+
+/* move this here to use AddConn, rather that than having the whole
+ * module above SQLConn, since this is buggin me right now :/
+ */
+void SQLresolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached, int resultnum)
+{
+ if (!resultnum)
+ {
+ host.ip = result;
+ ((ModulePgSQL*)mod)->AddConn(host);
+ ((ModulePgSQL*)mod)->ClearOldConnections();
+ }
+}
+
+void ReconnectTimer::Tick(time_t time)
+{
+ ((ModulePgSQL*)mod)->ReadConf();
+}
+
+void SQLConn::DelayReconnect()
+{
+ ((ModulePgSQL*)us)->ReconnectConn(this);
+}
+
+MODULE_INIT(ModulePgSQL)