Remove broken mssql module

Issue #1006

1 files changed, 0 insertions, 857 deletions

diff --git a/src/modules/extra/m_mssql.cpp b/src/modules/extra/m_mssql.cpp
deleted file mode 100644
index 0e8c8cf55..000000000
--- a/src/modules/extra/m_mssql.cpp
+++ /dev/null
@@ -1,857 +0,0 @@
-/*
- * 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)