1 /* +------------------------------------+
\r * | Inspire Internet Relay Chat Daemon |
\r * +------------------------------------+
\r *
\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team
\r * See: http://www.inspircd.org/wiki/index.php/Credits
\r *
\r * This program is free but copyrighted software; see
\r * the file COPYING for details.
\r *
\r * ---------------------------------------------------
\r */
\r\r#include "inspircd.h"
\r#include <sqlite3.h>
\r#include "users.h"
\r#include "channels.h"
\r#include "modules.h"
\r\r#include "m_sqlv2.h"
\r\r/* $ModDesc: sqlite3 provider */
\r/* $CompileFlags: pkgconfversion("sqlite3","3.3") pkgconfincludes("sqlite3","/sqlite3.h","") */
\r/* $LinkerFlags: pkgconflibs("sqlite3","/libsqlite3.so","-lsqlite3") */
\r/* $ModDep: m_sqlv2.h */
\r\r\rclass SQLConn;
\rclass SQLite3Result;
\rclass ResultNotifier;
\r\rtypedef std::map<std::string, SQLConn*> ConnMap;
\rtypedef std::deque<classbase*> paramlist;
\rtypedef std::deque<SQLite3Result*> ResultQueue;
\r\rResultNotifier* resultnotify = NULL;
\r\r\rclass ResultNotifier : public InspSocket
\r{
\r Module* mod;
\r insp_sockaddr sock_us;
\r socklen_t uslen;
\r\r public:
\r /* Create a socket on a random port. Let the tcp stack allocate us an available port */
\r#ifdef IPV6
\r ResultNotifier(InspIRCd* SI, Module* m) : InspSocket(SI, "::1", 0, true, 3000), mod(m)
\r#else
\r ResultNotifier(InspIRCd* SI, Module* m) : InspSocket(SI, "127.0.0.1", 0, true, 3000), mod(m)
\r#endif
\r {
\r uslen = sizeof(sock_us);
\r if (getsockname(this->fd,(sockaddr*)&sock_us,&uslen))
\r {
\r throw ModuleException("Could not create random listening port on localhost");
\r }
\r }
\r\r ResultNotifier(InspIRCd* SI, Module* m, int newfd, char* ip) : InspSocket(SI, newfd, ip), mod(m)
\r {
\r }
\r\r /* Using getsockname and ntohs, we can determine which port number we were allocated */
\r int GetPort()
\r {
\r#ifdef IPV6
\r return ntohs(sock_us.sin6_port);
\r#else
\r return ntohs(sock_us.sin_port);
\r#endif
\r }
\r\r virtual int OnIncomingConnection(int newsock, char* ip)
\r {
\r Dispatch();
\r return false;
\r }
\r\r void Dispatch();
\r};
\r\r\rclass SQLite3Result : public SQLresult
\r{
\r private:
\r int currentrow;
\r int rows;
\r int cols;
\r\r std::vector<std::string> colnames;
\r std::vector<SQLfieldList> fieldlists;
\r SQLfieldList emptyfieldlist;
\r\r SQLfieldList* fieldlist;
\r SQLfieldMap* fieldmap;
\r\r public:
\r SQLite3Result(Module* self, Module* to, unsigned int id)
\r : SQLresult(self, to, id), currentrow(0), rows(0), cols(0), fieldlist(NULL), fieldmap(NULL)
\r {
\r }
\r\r ~SQLite3Result()
\r {
\r }
\r\r void AddRow(int colsnum, char **data, char **colname)
\r {
\r colnames.clear();
\r cols = colsnum;
\r for (int i = 0; i < colsnum; i++)
\r {
\r fieldlists.resize(fieldlists.size()+1);
\r colnames.push_back(colname[i]);
\r SQLfield sf(data[i] ? data[i] : "", data[i] ? false : true);
\r fieldlists[rows].push_back(sf);
\r }
\r rows++;
\r }
\r\r void UpdateAffectedCount()
\r {
\r rows++;
\r }
\r\r virtual int Rows()
\r {
\r return rows;
\r }
\r\r virtual int Cols()
\r {
\r return cols;
\r }
\r\r virtual std::string ColName(int column)
\r {
\r if (column < (int)colnames.size())
\r {
\r return colnames[column];
\r }
\r else
\r {
\r throw SQLbadColName();
\r }
\r return "";
\r }
\r\r virtual int ColNum(const std::string &column)
\r {
\r for (unsigned int i = 0; i < colnames.size(); i++)
\r {
\r if (column == colnames[i])
\r return i;
\r }
\r throw SQLbadColName();
\r return 0;
\r }
\r\r virtual SQLfield GetValue(int row, int column)
\r {
\r if ((row >= 0) && (row < rows) && (column >= 0) && (column < Cols()))
\r {
\r return fieldlists[row][column];
\r }
\r\r throw SQLbadColName();
\r\r /* XXX: We never actually get here because of the throw */
\r return SQLfield("",true);
\r }
\r\r virtual SQLfieldList& GetRow()
\r {
\r if (currentrow < rows)
\r return fieldlists[currentrow];
\r else
\r return emptyfieldlist;
\r }
\r\r virtual SQLfieldMap& GetRowMap()
\r {
\r /* In an effort to reduce overhead we don't actually allocate the map
\r * until the first time it's needed...so...
\r */
\r if(fieldmap)
\r {
\r fieldmap->clear();
\r }
\r else
\r {
\r fieldmap = new SQLfieldMap;
\r }
\r\r if (currentrow < rows)
\r {
\r for (int i = 0; i < Cols(); i++)
\r {
\r fieldmap->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
\r }
\r currentrow++;
\r }
\r\r return *fieldmap;
\r }
\r\r virtual SQLfieldList* GetRowPtr()
\r {
\r fieldlist = new SQLfieldList();
\r\r if (currentrow < rows)
\r {
\r for (int i = 0; i < Rows(); i++)
\r {
\r fieldlist->push_back(fieldlists[currentrow][i]);
\r }
\r currentrow++;
\r }
\r return fieldlist;
\r }
\r\r virtual SQLfieldMap* GetRowMapPtr()
\r {
\r fieldmap = new SQLfieldMap();
\r\r if (currentrow < rows)
\r {
\r for (int i = 0; i < Cols(); i++)
\r {
\r fieldmap->insert(std::make_pair(colnames[i],GetValue(currentrow, i)));
\r }
\r currentrow++;
\r }
\r\r return fieldmap;
\r }
\r\r virtual void Free(SQLfieldMap* fm)
\r {
\r delete fm;
\r }
\r\r virtual void Free(SQLfieldList* fl)
\r {
\r delete fl;
\r }
\r\r\r};
\r\rclass SQLConn : public classbase
\r{
\r private:
\r ResultQueue results;
\r InspIRCd* Instance;
\r Module* mod;
\r SQLhost host;
\r sqlite3* conn;
\r\r public:
\r SQLConn(InspIRCd* SI, Module* m, const SQLhost& hi)
\r : Instance(SI), mod(m), host(hi)
\r {
\r if (OpenDB() != SQLITE_OK)
\r {
\r Instance->Log(DEFAULT, "WARNING: Could not open DB with id: " + host.id);
\r CloseDB();
\r }
\r }
\r\r ~SQLConn()
\r {
\r CloseDB();
\r }
\r\r SQLerror Query(SQLrequest &req)
\r {
\r /* Pointer to the buffer we screw around with substitution in */
\r char* query;
\r\r /* Pointer to the current end of query, where we append new stuff */
\r char* queryend;
\r\r /* Total length of the unescaped parameters */
\r unsigned long paramlen;
\r\r /* Total length of query, used for binary-safety in mysql_real_query */
\r unsigned long querylength = 0;
\r\r paramlen = 0;
\r for(ParamL::iterator i = req.query.p.begin(); i != req.query.p.end(); i++)
\r {
\r paramlen += i->size();
\r }
\r\r /* To avoid a lot of allocations, allocate enough memory for the biggest the escaped query could possibly be.
\r * sizeofquery + (totalparamlength*2) + 1
\r *
\r * The +1 is for null-terminating the string for mysql_real_escape_string
\r */
\r query = new char[req.query.q.length() + (paramlen*2) + 1];
\r queryend = query;
\r\r for(unsigned long i = 0; i < req.query.q.length(); i++)
\r {
\r if(req.query.q[i] == '?')
\r {
\r if(req.query.p.size())
\r {
\r char* escaped;
\r escaped = sqlite3_mprintf("%q", req.query.p.front().c_str());
\r for (char* n = escaped; *n; n++)
\r {
\r *queryend = *n;
\r queryend++;
\r }
\r sqlite3_free(escaped);
\r req.query.p.pop_front();
\r }
\r else
\r break;
\r }
\r else
\r {
\r *queryend = req.query.q[i];
\r queryend++;
\r }
\r querylength++;
\r }
\r *queryend = 0;
\r req.query.q = query;
\r\r SQLite3Result* res = new SQLite3Result(mod, req.GetSource(), req.id);
\r res->dbid = host.id;
\r res->query = req.query.q;
\r paramlist params;
\r params.push_back(this);
\r params.push_back(res);
\r\r char *errmsg = 0;
\r sqlite3_update_hook(conn, QueryUpdateHook, ¶ms);
\r if (sqlite3_exec(conn, req.query.q.data(), QueryResult, ¶ms, &errmsg) != SQLITE_OK)
\r {
\r std::string error(errmsg);
\r sqlite3_free(errmsg);
\r delete[] query;
\r delete res;
\r return SQLerror(QSEND_FAIL, error);
\r }
\r delete[] query;
\r\r results.push_back(res);
\r SendNotify();
\r return SQLerror();
\r }
\r\r static int QueryResult(void *params, int argc, char **argv, char **azColName)
\r {
\r paramlist* p = (paramlist*)params;
\r ((SQLConn*)(*p)[0])->ResultReady(((SQLite3Result*)(*p)[1]), argc, argv, azColName);
\r return 0;
\r }
\r\r static void QueryUpdateHook(void *params, int eventid, char const * azSQLite, char const * azColName, sqlite_int64 rowid)
\r {
\r paramlist* p = (paramlist*)params;
\r ((SQLConn*)(*p)[0])->AffectedReady(((SQLite3Result*)(*p)[1]));
\r }
\r\r void ResultReady(SQLite3Result *res, int cols, char **data, char **colnames)
\r {
\r res->AddRow(cols, data, colnames);
\r }
\r\r void AffectedReady(SQLite3Result *res)
\r {
\r res->UpdateAffectedCount();
\r }
\r\r int OpenDB()
\r {
\r return sqlite3_open(host.host.c_str(), &conn);
\r }
\r\r void CloseDB()
\r {
\r sqlite3_interrupt(conn);
\r sqlite3_close(conn);
\r }
\r\r SQLhost GetConfHost()
\r {
\r return host;
\r }
\r\r void SendResults()
\r {
\r while (results.size())
\r {
\r SQLite3Result* res = results[0];
\r if (res->GetDest())
\r {
\r res->Send();
\r }
\r else
\r {
\r /* If the client module is unloaded partway through a query then the provider will set
\r * the pointer to NULL. We cannot just cancel the query as the result will still come
\r * through at some point...and it could get messy if we play with invalid pointers...
\r */
\r delete res;
\r }
\r results.pop_front();
\r }
\r }
\r\r void ClearResults()
\r {
\r while (results.size())
\r {
\r SQLite3Result* res = results[0];
\r delete res;
\r results.pop_front();
\r }
\r }
\r\r void SendNotify()
\r {
\r int QueueFD;
\r if ((QueueFD = socket(AF_FAMILY, SOCK_STREAM, 0)) == -1)
\r {
\r /* crap, we're out of sockets... */
\r return;
\r }
\r\r insp_sockaddr addr;
\r\r#ifdef IPV6
\r insp_aton("::1", &addr.sin6_addr);
\r addr.sin6_family = AF_FAMILY;
\r addr.sin6_port = htons(resultnotify->GetPort());
\r#else
\r insp_inaddr ia;
\r insp_aton("127.0.0.1", &ia);
\r addr.sin_family = AF_FAMILY;
\r addr.sin_addr = ia;
\r addr.sin_port = htons(resultnotify->GetPort());
\r#endif
\r\r if (connect(QueueFD, (sockaddr*)&addr,sizeof(addr)) == -1)
\r {
\r /* wtf, we cant connect to it, but we just created it! */
\r return;
\r }
\r }
\r\r};
\r\r\rclass ModuleSQLite3 : public Module
\r{
\r private:
\r ConnMap connections;
\r unsigned long currid;
\r\r public:
\r ModuleSQLite3(InspIRCd* Me)
\r : Module::Module(Me), currid(0)
\r {
\r ServerInstance->UseInterface("SQLutils");
\r\r if (!ServerInstance->PublishFeature("SQL", this))
\r {
\r throw ModuleException("m_sqlite3: Unable to publish feature 'SQL'");
\r }
\r\r resultnotify = new ResultNotifier(ServerInstance, this);
\r\r ReadConf();
\r\r ServerInstance->PublishInterface("SQL", this);
\r }
\r\r virtual ~ModuleSQLite3()
\r {
\r ClearQueue();
\r ClearAllConnections();
\r resultnotify->SetFd(-1);
\r resultnotify->state = I_ERROR;
\r resultnotify->OnError(I_ERR_SOCKET);
\r resultnotify->ClosePending = true;
\r delete resultnotify;
\r ServerInstance->UnpublishInterface("SQL", this);
\r ServerInstance->UnpublishFeature("SQL");
\r ServerInstance->DoneWithInterface("SQLutils");
\r }
\r\r void Implements(char* List)
\r {
\r List[I_OnRequest] = List[I_OnRehash] = 1;
\r }
\r\r void SendQueue()
\r {
\r for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
\r {
\r iter->second->SendResults();
\r }
\r }
\r\r void ClearQueue()
\r {
\r for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
\r {
\r iter->second->ClearResults();
\r }
\r }
\r\r bool HasHost(const SQLhost &host)
\r {
\r for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
\r {
\r if (host == iter->second->GetConfHost())
\r return true;
\r }
\r return false;
\r }
\r\r bool HostInConf(const SQLhost &h)
\r {
\r ConfigReader conf(ServerInstance);
\r for(int i = 0; i < conf.Enumerate("database"); i++)
\r {
\r SQLhost host;
\r host.id = conf.ReadValue("database", "id", i);
\r host.host = conf.ReadValue("database", "hostname", i);
\r host.port = conf.ReadInteger("database", "port", i, true);
\r host.name = conf.ReadValue("database", "name", i);
\r host.user = conf.ReadValue("database", "username", i);
\r host.pass = conf.ReadValue("database", "password", i);
\r host.ssl = conf.ReadFlag("database", "ssl", "0", i);
\r if (h == host)
\r return true;
\r }
\r return false;
\r }
\r\r void ReadConf()
\r {
\r ClearOldConnections();
\r\r ConfigReader conf(ServerInstance);
\r for(int i = 0; i < conf.Enumerate("database"); i++)
\r {
\r SQLhost host;
\r\r host.id = conf.ReadValue("database", "id", i);
\r host.host = conf.ReadValue("database", "hostname", i);
\r host.port = conf.ReadInteger("database", "port", i, true);
\r host.name = conf.ReadValue("database", "name", i);
\r host.user = conf.ReadValue("database", "username", i);
\r host.pass = conf.ReadValue("database", "password", i);
\r host.ssl = conf.ReadFlag("database", "ssl", "0", i);
\r\r if (HasHost(host))
\r continue;
\r\r this->AddConn(host);
\r }
\r }
\r\r void AddConn(const SQLhost& hi)
\r {
\r if (HasHost(hi))
\r {
\r ServerInstance->Log(DEFAULT, "WARNING: A sqlite connection with id: %s already exists. Aborting database open attempt.", hi.id.c_str());
\r return;
\r }
\r\r SQLConn* newconn;
\r\r newconn = new SQLConn(ServerInstance, this, hi);
\r\r connections.insert(std::make_pair(hi.id, newconn));
\r }
\r\r void ClearOldConnections()
\r {
\r ConnMap::iterator iter,safei;
\r for (iter = connections.begin(); iter != connections.end(); iter++)
\r {
\r if (!HostInConf(iter->second->GetConfHost()))
\r {
\r DELETE(iter->second);
\r safei = iter;
\r --iter;
\r connections.erase(safei);
\r }
\r }
\r }
\r\r void ClearAllConnections()
\r {
\r ConnMap::iterator i;
\r while ((i = connections.begin()) != connections.end())
\r {
\r connections.erase(i);
\r DELETE(i->second);
\r }
\r }
\r\r virtual void OnRehash(userrec* user, const std::string ¶meter)
\r {
\r ReadConf();
\r }
\r\r virtual char* OnRequest(Request* request)
\r {
\r if(strcmp(SQLREQID, request->GetId()) == 0)
\r {
\r SQLrequest* req = (SQLrequest*)request;
\r ConnMap::iterator iter;
\r if((iter = connections.find(req->dbid)) != connections.end())
\r {
\r req->id = NewID();
\r req->error = iter->second->Query(*req);
\r return SQLSUCCESS;
\r }
\r else
\r {
\r req->error.Id(BAD_DBID);
\r return NULL;
\r }
\r }
\r return NULL;
\r }
\r\r unsigned long NewID()
\r {
\r if (currid+1 == 0)
\r currid++;
\r\r return ++currid;
\r }
\r\r virtual Version GetVersion()
\r {
\r return Version(1,1,0,0,VF_VENDOR|VF_SERVICEPROVIDER,API_VERSION);
\r }
\r\r};
\r\rvoid ResultNotifier::Dispatch()
\r{
\r ((ModuleSQLite3*)mod)->SendQueue();
\r}
\r\rMODULE_INIT(ModuleSQLite3);
\r\r
projects / user / henk / code / inspircd.git / blob