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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
*
* Written by Craig Edwards, Craig McLure, and others.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include <stdio.h>
#include <string>
#include <mysql/mysql.h>
#include "users.h"
#include "channels.h"
#include "modules.h"
/* $ModDesc: m_filter with regexps */
/* $CompileFlags: -I/usr/local/include -L/usr/local/lib/mysql -L/usr/lib/mysql -lmysqlclient */
/** SQLConnection represents one mysql session.
* Each session has its own persistent connection to the database.
*/
class SQLConnection
{
protected:
MYSQL connection;
MYSQL_RES *res;
MYSQL_ROW row;
std::string host;
std::string user;
std::string pass;
std::string db;
std::map<std::string,std::string> thisrow;
public:
// This constructor creates an SQLConnection object with the given credentials, and creates the underlying
// MYSQL struct, but does not connect yet.
SQLConnection(std::string thishost, std::string thisuser, std::string thispass, std::string thisdb)
{
this->host = thishost;
this->user = thisuser;
this->pass = thispass;
this->db = thisdb;
mysql_init(&connection);
}
// This method connects to the database using the credentials supplied to the constructor, and returns
// true upon success.
bool Connect()
{
return mysql_real_connect(&connection, host.c_str(), user.c_str(), pass.c_str(), db.c_str(), 0, NULL, 0);
}
// This method issues a query that expects multiple rows of results. Use GetRow() and QueryDone() to retrieve
// multiple rows.
bool QueryResult(std::string query)
{
char escaped_query[query.length()+1];
mysql_real_escape_string(&connection, escaped_query, query.c_str(), query.length());
int r = mysql_query(&connection, escaped_query);
if (!r)
{
res = mysql_use_result(&connection);
}
return (!r);
}
// This method issues a query that just expects a number of 'effected' rows (e.g. UPDATE or DELETE FROM).
// the number of effected rows is returned in the return value.
unsigned long QueryCount(std::string query)
{
char escaped_query[query.length()+1];
mysql_real_escape_string(&connection, escaped_query, query.c_str(), query.length());
int r = mysql_query(&connection, escaped_query);
if (!r)
{
res = mysql_store_result(&connection);
unsigned long rows = mysql_affected_rows(&connection);
mysql_free_result(res);
return rows;
}
return 0;
}
// This method fetches a row, if available from the database. You must issue a query
// using QueryResult() first! The row's values are returned as a map of std::string
// where each item is keyed by the column name.
std::map<std::string,std::string> GetRow()
{
thisrow.clear();
if (res)
{
row = mysql_fetch_row(res);
if (row)
{
unsigned int field_count = 0;
if(mysql_field_count(&connection) == 0)
return thisrow;
MYSQL_FIELD *fields = mysql_fetch_fields(res);
while (field_count < mysql_field_count(&connection))
{
thisrow[std::string(fields[field_count].name)] = std::string(row[field_count]);
field_count++;
}
return thisrow;
}
}
return thisrow;
}
bool QueryDone()
{
if (res)
{
mysql_free_result(res);
return true;
}
else return false;
}
std::string GetError()
{
return mysql_error(&connection);
}
~SQLConnection()
{
mysql_close(&connection);
}
};
class ModuleSQL : public Module
{
Server *Srv;
ConfigReader *Conf;
public:
ModuleSQL()
{
}
virtual ~ModuleSQL()
{
}
virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
{
}
virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
{
}
virtual void OnRehash()
{
}
virtual Version GetVersion()
{
return Version(1,0,0,0,VF_VENDOR|VF_SERVICEPROVIDER);
}
};
// stuff down here is the module-factory stuff. For basic modules you can ignore this.
class ModuleSQLFactory : public ModuleFactory
{
public:
ModuleSQLFactory()
{
}
~ModuleSQLFactory()
{
}
virtual Module * CreateModule()
{
return new ModuleSQL;
}
};
extern "C" void * init_module( void )
{
return new ModuleSQLFactory;
}
|
