+++ /dev/null
-/*
- * InspIRCd -- Internet Relay Chat Daemon
- *
- * 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 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>
-
-#include "m_sqlv2.h"
-
-/* $CompileFlags: exec("grep VERSION_NO /usr/include/tdsver.h 2>/dev/null | perl -e 'print "-D_TDSVER=".((<> =~ /freetds v(\d+\.\d+)/i) ? $1*100 : 0);'") */
-/* $LinkerFlags: -ltds */
-
-class SQLConn;
-class MsSQLResult;
-class ModuleMsSQL;
-
-typedef insp::flat_map<std::string, SQLConn*> ConnMap;
-typedef std::deque<MsSQLResult*> ResultQueue;
-
-unsigned long count(const char * const str, char a)
-{
- unsigned long n = 0;
- for (const char *p = str; *p; ++p)
- {
- if (*p == '?')
- ++n;
- }
- return n;
-}
-
-ConnMap connections;
-Mutex* ResultsMutex;
-Mutex* LoggingMutex;
-
-class QueryThread : public SocketThread
-{
- private:
- ModuleMsSQL* const Parent;
- public:
- QueryThread(ModuleMsSQL* mod) : Parent(mod) { }
- ~QueryThread() { }
- void Run();
- void OnNotify();
-};
-
-class MsSQLResult : public SQLresult
-{
- private:
- int currentrow;
- int rows;
- int cols;
-
- std::vector<std::string> colnames;
- std::vector<SQLfieldList> fieldlists;
- SQLfieldList emptyfieldlist;
-
- SQLfieldList* fieldlist;
- SQLfieldMap* fieldmap;
-
- public:
- MsSQLResult(Module* self, Module* to, unsigned int rid)
- : SQLresult(self, to, rid), currentrow(0), rows(0), cols(0), fieldlist(NULL), fieldmap(NULL)
- {
- }
-
- void AddRow(int colsnum, char **dat, char **colname)
- {
- colnames.clear();
- cols = colsnum;
- for (int i = 0; i < colsnum; i++)
- {
- fieldlists.resize(fieldlists.size()+1);
- colnames.push_back(colname[i]);
- SQLfield sf(dat[i] ? dat[i] : "", dat[i] ? false : true);
- fieldlists[rows].push_back(sf);
- }
- rows++;
- }
-
- void UpdateAffectedCount()
- {
- rows++;
- }
-
- int Rows()
- {
- return rows;
- }
-
- int Cols()
- {
- return cols;
- }
-
- std::string ColName(int column)
- {
- if (column < (int)colnames.size())
- {
- return colnames[column];
- }
- else
- {
- throw SQLbadColName();
- }
- return "";
- }
-
- int ColNum(const std::string &column)
- {
- for (unsigned int i = 0; i < colnames.size(); i++)
- {
- if (column == colnames[i])
- return i;
- }
- throw SQLbadColName();
- return 0;
- }
-
- SQLfield GetValue(int row, int column)
- {
- if ((row >= 0) && (row < rows) && (column >= 0) && (column < Cols()))
- {
- return fieldlists[row][column];
- }
-
- throw SQLbadColName();
-
- /* XXX: We never actually get here because of the throw */
- return SQLfield("",true);
- }
-
- SQLfieldList& GetRow()
- {
- if (currentrow < rows)
- return fieldlists[currentrow];
- else
- return emptyfieldlist;
- }
-
- 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 < rows)
- {
- for (int i = 0; i < Cols(); i++)
- {
- fieldmap->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
- }
- currentrow++;
- }
-
- return *fieldmap;
- }
-
- SQLfieldList* GetRowPtr()
- {
- fieldlist = new SQLfieldList();
-
- if (currentrow < rows)
- {
- for (int i = 0; i < Rows(); i++)
- {
- fieldlist->push_back(fieldlists[currentrow][i]);
- }
- currentrow++;
- }
- return fieldlist;
- }
-
- SQLfieldMap* GetRowMapPtr()
- {
- fieldmap = new SQLfieldMap();
-
- if (currentrow < rows)
- {
- for (int i = 0; i < Cols(); i++)
- {
- fieldmap->insert(std::make_pair(colnames[i],GetValue(currentrow, i)));
- }
- currentrow++;
- }
-
- return fieldmap;
- }
-
- void Free(SQLfieldMap* fm)
- {
- delete fm;
- }
-
- void Free(SQLfieldList* fl)
- {
- delete fl;
- }
-};
-
-class SQLConn : public classbase
-{
- private:
- ResultQueue results;
- Module* mod;
- SQLhost host;
- TDSLOGIN* login;
- TDSSOCKET* sock;
- TDSCONTEXT* context;
-
- public:
- QueryQueue queue;
-
- SQLConn(Module* m, const SQLhost& hi)
- : mod(m), host(hi), login(NULL), sock(NULL), context(NULL)
- {
- if (OpenDB())
- {
- std::string query("USE " + host.name);
- if (tds_submit_query(sock, query.c_str()) == TDS_SUCCEED)
- {
- if (tds_process_simple_query(sock) != TDS_SUCCEED)
- {
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "WARNING: Could not select database " + host.name + " for DB with id: " + host.id);
- LoggingMutex->Unlock();
- CloseDB();
- }
- }
- else
- {
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "WARNING: Could not select database " + host.name + " for DB with id: " + host.id);
- LoggingMutex->Unlock();
- CloseDB();
- }
- }
- else
- {
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "WARNING: Could not connect to DB with id: " + host.id);
- LoggingMutex->Unlock();
- CloseDB();
- }
- }
-
- ~SQLConn()
- {
- CloseDB();
- }
-
- SQLerror Query(SQLrequest* req)
- {
- if (!sock)
- return SQLerror(SQL_BAD_CONN, "Socket was NULL, check if SQL server is running.");
-
- /* 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 long maxparamlen, paramcount;
-
- /* The length of the longest parameter */
- maxparamlen = 0;
-
- 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(), '?');
-
- /* This stores copy of params to be inserted with using numbered params 1;3B*/
- 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
- *
- * The +1 is for null-terminating the string
- */
-
- query = new char[req->query.q.length() + (maxparamlen*paramcount*2) + 1];
- queryend = query;
-
- for(unsigned long i = 0; i < req->query.q.length(); i++)
- {
- if(req->query.q[i] == '?')
- {
- /* We found a place to substitute..what fun.
- * use mssql 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.
- */
-
- /* Is it numbered parameter?
- */
-
- bool numbered;
- numbered = false;
-
- /* Numbered parameter number :|
- */
- unsigned int paramnum;
- paramnum = 0;
-
- /* 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'))
- {
- numbered = true;
- ++i;
- paramnum = paramnum * 10 + req->query.q[i] - '0';
- }
-
- if (paramnum > paramscopy.size() - 1)
- {
- /* index is out of range!
- */
- numbered = false;
- }
-
- if (numbered)
- {
- /* Custom escaping for this one. converting ' to '' should make SQL Server happy. Ugly but fast :]
- */
- char* escaped = new char[(paramscopy[paramnum].length() * 2) + 1];
- char* escend = escaped;
- for (std::string::iterator p = paramscopy[paramnum].begin(); p < paramscopy[paramnum].end(); p++)
- {
- if (*p == '\'')
- {
- *escend = *p;
- escend++;
- *escend = *p;
- }
- *escend = *p;
- escend++;
- }
- *escend = 0;
-
- for (char* n = escaped; *n; n++)
- {
- *queryend = *n;
- queryend++;
- }
- delete[] escaped;
- }
- 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* escend = escaped;
- for (std::string::iterator p = req->query.p.front().begin(); p < req->query.p.front().end(); p++)
- {
- if (*p == '\'')
- {
- *escend = *p;
- escend++;
- *escend = *p;
- }
- *escend = *p;
- escend++;
- }
- *escend = 0;
-
- for (char* n = escaped; *n; n++)
- {
- *queryend = *n;
- queryend++;
- }
- delete[] escaped;
- req->query.p.pop_front();
- }
- else
- break;
- }
- else
- {
- *queryend = req->query.q[i];
- queryend++;
- }
- }
- *queryend = 0;
- req->query.q = query;
-
- MsSQLResult* res = new MsSQLResult((Module*)mod, req->source, req->id);
- res->dbid = host.id;
- res->query = req->query.q;
-
- char* msquery = strdup(req->query.q.data());
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_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()));
- delete[] query;
- delete res;
- free(msquery);
- return SQLerror(SQL_QSEND_FAIL, error);
- }
- delete[] query;
- free(msquery);
-
- int tds_res;
- while (tds_process_tokens(sock, &tds_res, NULL, TDS_TOKEN_RESULTS) == TDS_SUCCEED)
- {
- //ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "<******> result type: %d", tds_res);
- //ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "AFFECTED ROWS: %d", sock->rows_affected);
- switch (tds_res)
- {
- case TDS_ROWFMT_RESULT:
- break;
-
- case TDS_DONE_RESULT:
- if (sock->rows_affected > -1)
- {
- for (int c = 0; c < sock->rows_affected; c++) res->UpdateAffectedCount();
- continue;
- }
- break;
-
- case TDS_ROW_RESULT:
- while (tds_process_tokens(sock, &tds_res, NULL, TDS_STOPAT_ROWFMT|TDS_RETURN_DONE|TDS_RETURN_ROW) == TDS_SUCCEED)
- {
- if (tds_res != TDS_ROW_RESULT)
- break;
-
- if (!sock->current_results)
- continue;
-
- if (sock->res_info->row_count > 0)
- {
- int cols = sock->res_info->num_cols;
- char** name = new char*[512];
- char** data = new char*[512];
- for (int j=0; j<cols; j++)
- {
- TDSCOLUMN* col = sock->current_results->columns[j];
- name[j] = col->column_name;
-
- int ctype;
- int srclen;
- unsigned char* src;
- CONV_RESULT dres;
- ctype = tds_get_conversion_type(col->column_type, col->column_size);
-#if _TDSVER >= 82
- src = col->column_data;
-#else
- src = &(sock->current_results->current_row[col->column_offset]);
-#endif
- srclen = col->column_cur_size;
- tds_convert(sock->tds_ctx, ctype, (TDS_CHAR *) src, srclen, SYBCHAR, &dres);
- data[j] = (char*)dres.ib;
- }
- ResultReady(res, cols, data, name);
- }
- }
- break;
-
- default:
- break;
- }
- }
- ResultsMutex->Lock();
- results.push_back(res);
- ResultsMutex->Unlock();
- return SQLerror();
- }
-
- static int HandleMessage(const TDSCONTEXT * pContext, TDSSOCKET * pTdsSocket, TDSMESSAGE * pMessage)
- {
- SQLConn* sc = (SQLConn*)pContext->parent;
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Message for DB with id: %s -> %s", sc->host.id.c_str(), pMessage->message);
- LoggingMutex->Unlock();
- return 0;
- }
-
- static int HandleError(const TDSCONTEXT * pContext, TDSSOCKET * pTdsSocket, TDSMESSAGE * pMessage)
- {
- SQLConn* sc = (SQLConn*)pContext->parent;
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Error for DB with id: %s -> %s", sc->host.id.c_str(), pMessage->message);
- LoggingMutex->Unlock();
- return 0;
- }
-
- void ResultReady(MsSQLResult *res, int cols, char **data, char **colnames)
- {
- res->AddRow(cols, data, colnames);
- }
-
- void AffectedReady(MsSQLResult *res)
- {
- res->UpdateAffectedCount();
- }
-
- bool OpenDB()
- {
- CloseDB();
-
- TDSCONNECTION* conn = NULL;
-
- login = tds_alloc_login();
- tds_set_app(login, "TSQL");
- tds_set_library(login,"TDS-Library");
- tds_set_host(login, "");
- tds_set_server(login, host.host.c_str());
- tds_set_server_addr(login, host.host.c_str());
- tds_set_user(login, host.user.c_str());
- tds_set_passwd(login, host.pass.c_str());
- tds_set_port(login, host.port);
- tds_set_packet(login, 512);
-
- context = tds_alloc_context(this);
- context->msg_handler = HandleMessage;
- context->err_handler = HandleError;
-
- sock = tds_alloc_socket(context, 512);
- tds_set_parent(sock, NULL);
-
- conn = tds_read_config_info(NULL, login, context->locale);
-
- if (tds_connect(sock, conn) == TDS_SUCCEED)
- {
- tds_free_connection(conn);
- return 1;
- }
- tds_free_connection(conn);
- return 0;
- }
-
- void CloseDB()
- {
- if (sock)
- {
- tds_free_socket(sock);
- sock = NULL;
- }
- if (context)
- {
- tds_free_context(context);
- context = NULL;
- }
- if (login)
- {
- tds_free_login(login);
- login = NULL;
- }
- }
-
- SQLhost GetConfHost()
- {
- return host;
- }
-
- void SendResults()
- {
- while (results.size())
- {
- MsSQLResult* res = results[0];
- ResultsMutex->Lock();
- if (res->dest)
- {
- res->Send();
- }
- 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...
- */
- delete res;
- }
- results.pop_front();
- ResultsMutex->Unlock();
- }
- }
-
- void ClearResults()
- {
- while (results.size())
- {
- MsSQLResult* res = results[0];
- delete res;
- results.pop_front();
- }
- }
-
- void DoLeadingQuery()
- {
- SQLrequest* req = queue.front();
- req->error = Query(req);
- }
-
-};
-
-
-class ModuleMsSQL : public Module
-{
- private:
- unsigned long currid;
- QueryThread* queryDispatcher;
- ServiceProvider sqlserv;
-
- public:
- ModuleMsSQL()
- : currid(0), sqlserv(this, "SQL/mssql", SERVICE_DATA)
- {
- LoggingMutex = new Mutex();
- ResultsMutex = new Mutex();
- queryDispatcher = new QueryThread(this);
- }
-
- void init() CXX11_OVERRIDE
- {
- ReadConf();
-
- ServerInstance->Threads.Start(queryDispatcher);
- }
-
- ~ModuleMsSQL()
- {
- queryDispatcher->join();
- delete queryDispatcher;
- ClearQueue();
- ClearAllConnections();
-
- delete LoggingMutex;
- delete ResultsMutex;
- }
-
- void SendQueue()
- {
- for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
- {
- iter->second->SendResults();
- }
- }
-
- void ClearQueue()
- {
- for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
- {
- iter->second->ClearResults();
- }
- }
-
- 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)
- {
- ConfigTagList tags = ServerInstance->Config->ConfTags("database");
- for (ConfigIter i = tags.first; i != tags.second; ++i)
- {
- ConfigTag* tag = i->second;
- SQLhost host;
- 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;
- }
- return false;
- }
-
- void ReadConf()
- {
- ClearOldConnections();
-
- ConfigTagList tags = ServerInstance->Config->ConfTags("database");
- for (ConfigIter i = tags.first; i != tags.second; ++i)
- {
- ConfigTag* tag = i->second;
- SQLhost host;
-
- 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;
-
- this->AddConn(host);
- }
- }
-
- void AddConn(const SQLhost& hi)
- {
- if (HasHost(hi))
- {
- LoggingMutex->Lock();
- ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "WARNING: A MsSQL connection with id: %s already exists. Aborting database open attempt.", hi.id.c_str());
- LoggingMutex->Unlock();
- return;
- }
-
- SQLConn* newconn;
-
- newconn = new SQLConn(this, hi);
-
- connections.insert(std::make_pair(hi.id, newconn));
- }
-
- 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()
- {
- for(ConnMap::iterator i = connections.begin(); i != connections.end(); ++i)
- delete i->second;
- connections.clear();
- }
-
- void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
- {
- queryDispatcher->LockQueue();
- ReadConf();
- queryDispatcher->UnlockQueueWakeup();
- }
-
- void OnRequest(Request& request) CXX11_OVERRIDE
- {
- if(strcmp(SQLREQID, request.id) == 0)
- {
- SQLrequest* req = (SQLrequest*)&request;
-
- queryDispatcher->LockQueue();
-
- ConnMap::iterator iter;
-
- if((iter = connections.find(req->dbid)) != connections.end())
- {
- req->id = NewID();
- iter->second->queue.push(new SQLrequest(*req));
- }
- else
- {
- req->error.Id(SQL_BAD_DBID);
- }
- queryDispatcher->UnlockQueueWakeup();
- }
- }
-
- unsigned long NewID()
- {
- if (currid+1 == 0)
- currid++;
-
- return ++currid;
- }
-
- Version GetVersion() CXX11_OVERRIDE
- {
- return Version("MsSQL provider", VF_VENDOR);
- }
-
-};
-
-void QueryThread::OnNotify()
-{
- Parent->SendQueue();
-}
-
-void QueryThread::Run()
-{
- this->LockQueue();
- while (this->GetExitFlag() == false)
- {
- SQLConn* conn = NULL;
- for (ConnMap::iterator i = connections.begin(); i != connections.end(); i++)
- {
- if (i->second->queue.totalsize())
- {
- conn = i->second;
- break;
- }
- }
- if (conn)
- {
- this->UnlockQueue();
- conn->DoLeadingQuery();
- this->NotifyParent();
- this->LockQueue();
- conn->queue.pop();
- }
- else
- {
- this->WaitForQueue();
- }
- }
- this->UnlockQueue();
-}
-
-MODULE_INIT(ModuleMsSQL)
projects / user / henk / code / inspircd.git / commitdiff