1 /* +------------------------------------+
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2 * | Inspire Internet Relay Chat Daemon |
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3 * +------------------------------------+
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5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
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6 * See: http://www.inspircd.org/wiki/index.php/Credits
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8 * This program is free but copyrighted software; see
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9 * the file COPYING for details.
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11 * ---------------------------------------------------
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14 #include "inspircd.h"
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15 #include <sqlite3.h>
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17 #include "channels.h"
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18 #include "modules.h"
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20 #include "m_sqlv2.h"
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22 /* $ModDesc: sqlite3 provider */
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23 /* $CompileFlags: pkgconfversion("sqlite3","3.3") pkgconfincludes("sqlite3","/sqlite3.h","") */
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24 /* $LinkerFlags: pkgconflibs("sqlite3","/libsqlite3.so","-lsqlite3") */
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25 /* $ModDep: m_sqlv2.h */
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29 class SQLite3Result;
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30 class ResultNotifier;
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32 typedef std::map<std::string, SQLConn*> ConnMap;
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33 typedef std::deque<classbase*> paramlist;
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34 typedef std::deque<SQLite3Result*> ResultQueue;
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36 ResultNotifier* resultnotify = NULL;
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39 class ResultNotifier : public InspSocket
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42 insp_sockaddr sock_us;
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46 /* Create a socket on a random port. Let the tcp stack allocate us an available port */
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48 ResultNotifier(InspIRCd* SI, Module* m) : InspSocket(SI, "::1", 0, true, 3000), mod(m)
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50 ResultNotifier(InspIRCd* SI, Module* m) : InspSocket(SI, "127.0.0.1", 0, true, 3000), mod(m)
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53 uslen = sizeof(sock_us);
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54 if (getsockname(this->fd,(sockaddr*)&sock_us,&uslen))
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56 throw ModuleException("Could not create random listening port on localhost");
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60 ResultNotifier(InspIRCd* SI, Module* m, int newfd, char* ip) : InspSocket(SI, newfd, ip), mod(m)
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64 /* Using getsockname and ntohs, we can determine which port number we were allocated */
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68 return ntohs(sock_us.sin6_port);
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70 return ntohs(sock_us.sin_port);
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74 virtual int OnIncomingConnection(int newsock, char* ip)
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84 class SQLite3Result : public SQLresult
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91 std::vector<std::string> colnames;
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92 std::vector<SQLfieldList> fieldlists;
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93 SQLfieldList emptyfieldlist;
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95 SQLfieldList* fieldlist;
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96 SQLfieldMap* fieldmap;
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99 SQLite3Result(Module* self, Module* to, unsigned int id)
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100 : SQLresult(self, to, id), currentrow(0), rows(0), cols(0), fieldlist(NULL), fieldmap(NULL)
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108 void AddRow(int colsnum, char **data, char **colname)
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112 for (int i = 0; i < colsnum; i++)
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114 fieldlists.resize(fieldlists.size()+1);
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115 colnames.push_back(colname[i]);
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116 SQLfield sf(data[i] ? data[i] : "", data[i] ? false : true);
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117 fieldlists[rows].push_back(sf);
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122 void UpdateAffectedCount()
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137 virtual std::string ColName(int column)
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139 if (column < (int)colnames.size())
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141 return colnames[column];
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145 throw SQLbadColName();
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150 virtual int ColNum(const std::string &column)
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152 for (unsigned int i = 0; i < colnames.size(); i++)
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154 if (column == colnames[i])
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157 throw SQLbadColName();
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161 virtual SQLfield GetValue(int row, int column)
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163 if ((row >= 0) && (row < rows) && (column >= 0) && (column < Cols()))
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165 return fieldlists[row][column];
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168 throw SQLbadColName();
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170 /* XXX: We never actually get here because of the throw */
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171 return SQLfield("",true);
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174 virtual SQLfieldList& GetRow()
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176 if (currentrow < rows)
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177 return fieldlists[currentrow];
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179 return emptyfieldlist;
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182 virtual SQLfieldMap& GetRowMap()
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184 /* In an effort to reduce overhead we don't actually allocate the map
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185 * until the first time it's needed...so...
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193 fieldmap = new SQLfieldMap;
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196 if (currentrow < rows)
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198 for (int i = 0; i < Cols(); i++)
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200 fieldmap->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
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208 virtual SQLfieldList* GetRowPtr()
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210 fieldlist = new SQLfieldList();
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212 if (currentrow < rows)
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214 for (int i = 0; i < Rows(); i++)
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216 fieldlist->push_back(fieldlists[currentrow][i]);
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223 virtual SQLfieldMap* GetRowMapPtr()
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225 fieldmap = new SQLfieldMap();
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227 if (currentrow < rows)
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229 for (int i = 0; i < Cols(); i++)
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231 fieldmap->insert(std::make_pair(colnames[i],GetValue(currentrow, i)));
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239 virtual void Free(SQLfieldMap* fm)
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244 virtual void Free(SQLfieldList* fl)
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252 class SQLConn : public classbase
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255 ResultQueue results;
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256 InspIRCd* Instance;
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262 SQLConn(InspIRCd* SI, Module* m, const SQLhost& hi)
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263 : Instance(SI), mod(m), host(hi)
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265 if (OpenDB() != SQLITE_OK)
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267 Instance->Log(DEFAULT, "WARNING: Could not open DB with id: " + host.id);
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277 SQLerror Query(SQLrequest &req)
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279 /* Pointer to the buffer we screw around with substitution in */
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282 /* Pointer to the current end of query, where we append new stuff */
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285 /* Total length of the unescaped parameters */
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286 unsigned long paramlen;
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288 /* Total length of query, used for binary-safety in mysql_real_query */
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289 unsigned long querylength = 0;
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292 for(ParamL::iterator i = req.query.p.begin(); i != req.query.p.end(); i++)
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294 paramlen += i->size();
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297 /* To avoid a lot of allocations, allocate enough memory for the biggest the escaped query could possibly be.
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298 * sizeofquery + (totalparamlength*2) + 1
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300 * The +1 is for null-terminating the string for mysql_real_escape_string
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302 query = new char[req.query.q.length() + (paramlen*2) + 1];
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305 for(unsigned long i = 0; i < req.query.q.length(); i++)
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307 if(req.query.q[i] == '?')
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309 if(req.query.p.size())
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312 escaped = sqlite3_mprintf("%q", req.query.p.front().c_str());
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313 for (char* n = escaped; *n; n++)
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318 sqlite3_free(escaped);
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319 req.query.p.pop_front();
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326 *queryend = req.query.q[i];
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332 req.query.q = query;
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334 SQLite3Result* res = new SQLite3Result(mod, req.GetSource(), req.id);
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335 res->dbid = host.id;
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336 res->query = req.query.q;
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338 params.push_back(this);
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339 params.push_back(res);
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342 sqlite3_update_hook(conn, QueryUpdateHook, ¶ms);
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343 if (sqlite3_exec(conn, req.query.q.data(), QueryResult, ¶ms, &errmsg) != SQLITE_OK)
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345 std::string error(errmsg);
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346 sqlite3_free(errmsg);
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349 return SQLerror(QSEND_FAIL, error);
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353 results.push_back(res);
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358 static int QueryResult(void *params, int argc, char **argv, char **azColName)
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360 paramlist* p = (paramlist*)params;
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361 ((SQLConn*)(*p)[0])->ResultReady(((SQLite3Result*)(*p)[1]), argc, argv, azColName);
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365 static void QueryUpdateHook(void *params, int eventid, char const * azSQLite, char const * azColName, sqlite_int64 rowid)
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367 paramlist* p = (paramlist*)params;
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368 ((SQLConn*)(*p)[0])->AffectedReady(((SQLite3Result*)(*p)[1]));
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371 void ResultReady(SQLite3Result *res, int cols, char **data, char **colnames)
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373 res->AddRow(cols, data, colnames);
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376 void AffectedReady(SQLite3Result *res)
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378 res->UpdateAffectedCount();
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383 return sqlite3_open(host.host.c_str(), &conn);
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388 sqlite3_interrupt(conn);
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389 sqlite3_close(conn);
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392 SQLhost GetConfHost()
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399 while (results.size())
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401 SQLite3Result* res = results[0];
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402 if (res->GetDest())
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408 /* If the client module is unloaded partway through a query then the provider will set
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409 * the pointer to NULL. We cannot just cancel the query as the result will still come
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410 * through at some point...and it could get messy if we play with invalid pointers...
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414 results.pop_front();
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418 void ClearResults()
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420 while (results.size())
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422 SQLite3Result* res = results[0];
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424 results.pop_front();
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431 if ((QueueFD = socket(AF_FAMILY, SOCK_STREAM, 0)) == -1)
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433 /* crap, we're out of sockets... */
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437 insp_sockaddr addr;
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440 insp_aton("::1", &addr.sin6_addr);
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441 addr.sin6_family = AF_FAMILY;
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442 addr.sin6_port = htons(resultnotify->GetPort());
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445 insp_aton("127.0.0.1", &ia);
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446 addr.sin_family = AF_FAMILY;
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447 addr.sin_addr = ia;
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448 addr.sin_port = htons(resultnotify->GetPort());
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451 if (connect(QueueFD, (sockaddr*)&addr,sizeof(addr)) == -1)
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453 /* wtf, we cant connect to it, but we just created it! */
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461 class ModuleSQLite3 : public Module
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464 ConnMap connections;
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465 unsigned long currid;
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468 ModuleSQLite3(InspIRCd* Me)
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469 : Module::Module(Me), currid(0)
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471 ServerInstance->UseInterface("SQLutils");
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473 if (!ServerInstance->PublishFeature("SQL", this))
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475 throw ModuleException("m_sqlite3: Unable to publish feature 'SQL'");
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478 resultnotify = new ResultNotifier(ServerInstance, this);
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482 ServerInstance->PublishInterface("SQL", this);
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485 virtual ~ModuleSQLite3()
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488 ClearAllConnections();
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489 resultnotify->SetFd(-1);
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490 resultnotify->state = I_ERROR;
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491 resultnotify->OnError(I_ERR_SOCKET);
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492 resultnotify->ClosePending = true;
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493 delete resultnotify;
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494 ServerInstance->UnpublishInterface("SQL", this);
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495 ServerInstance->UnpublishFeature("SQL");
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496 ServerInstance->DoneWithInterface("SQLutils");
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499 void Implements(char* List)
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501 List[I_OnRequest] = List[I_OnRehash] = 1;
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506 for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
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508 iter->second->SendResults();
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514 for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
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516 iter->second->ClearResults();
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520 bool HasHost(const SQLhost &host)
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522 for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
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524 if (host == iter->second->GetConfHost())
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530 bool HostInConf(const SQLhost &h)
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532 ConfigReader conf(ServerInstance);
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533 for(int i = 0; i < conf.Enumerate("database"); i++)
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536 host.id = conf.ReadValue("database", "id", i);
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537 host.host = conf.ReadValue("database", "hostname", i);
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538 host.port = conf.ReadInteger("database", "port", i, true);
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539 host.name = conf.ReadValue("database", "name", i);
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540 host.user = conf.ReadValue("database", "username", i);
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541 host.pass = conf.ReadValue("database", "password", i);
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542 host.ssl = conf.ReadFlag("database", "ssl", "0", i);
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551 ClearOldConnections();
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553 ConfigReader conf(ServerInstance);
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554 for(int i = 0; i < conf.Enumerate("database"); i++)
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558 host.id = conf.ReadValue("database", "id", i);
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559 host.host = conf.ReadValue("database", "hostname", i);
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560 host.port = conf.ReadInteger("database", "port", i, true);
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561 host.name = conf.ReadValue("database", "name", i);
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562 host.user = conf.ReadValue("database", "username", i);
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563 host.pass = conf.ReadValue("database", "password", i);
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564 host.ssl = conf.ReadFlag("database", "ssl", "0", i);
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569 this->AddConn(host);
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573 void AddConn(const SQLhost& hi)
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577 ServerInstance->Log(DEFAULT, "WARNING: A sqlite connection with id: %s already exists. Aborting database open attempt.", hi.id.c_str());
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583 newconn = new SQLConn(ServerInstance, this, hi);
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585 connections.insert(std::make_pair(hi.id, newconn));
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588 void ClearOldConnections()
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590 ConnMap::iterator iter,safei;
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591 for (iter = connections.begin(); iter != connections.end(); iter++)
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593 if (!HostInConf(iter->second->GetConfHost()))
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595 DELETE(iter->second);
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598 connections.erase(safei);
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603 void ClearAllConnections()
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605 ConnMap::iterator i;
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606 while ((i = connections.begin()) != connections.end())
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608 connections.erase(i);
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613 virtual void OnRehash(userrec* user, const std::string ¶meter)
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618 virtual char* OnRequest(Request* request)
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620 if(strcmp(SQLREQID, request->GetId()) == 0)
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622 SQLrequest* req = (SQLrequest*)request;
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623 ConnMap::iterator iter;
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624 if((iter = connections.find(req->dbid)) != connections.end())
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627 req->error = iter->second->Query(*req);
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632 req->error.Id(BAD_DBID);
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639 unsigned long NewID()
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647 virtual Version GetVersion()
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649 return Version(1,1,0,0,VF_VENDOR|VF_SERVICEPROVIDER,API_VERSION);
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654 void ResultNotifier::Dispatch()
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656 ((ModuleSQLite3*)mod)->SendQueue();
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659 MODULE_INIT(ModuleSQLite3);
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