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/*:*
*: File: ./src/data/data.cpp
*:
*: yChat; Homepage: www.yChat.org; Version 0.7.9.5-RELEASE
*:
*: Copyright (C) 2003 Paul C. Buetow, Volker Richter
*: Copyright (C) 2004 Paul C. Buetow
*: Copyright (C) 2005 EXA Digital Solutions GbR
*:
*: This program 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; either version 2
*: of the License, or (at your option) any later version.
*:
*: 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, write to the Free Software
*: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*:*/
#include "data.h"
#ifdef DATABASE
#ifndef DATA_CPP
#define DATA_CPP
using namespace std;
data::data()
{}
data::~data()
{}
hashmap<string>
data::select_user_data( string s_user, string s_query)
{
string s_where_rule = " WHERE nick = \"" + s_user + "\"";
vector<string> vec_elements;
MYSQL_RES* p_result = select_query( s_query, s_where_rule, vec_elements );
return parse_result( p_result, vec_elements );
}
MYSQL_RES*
data::select_query( string s_query, string s_where_rule, vector<string>& vec_elements )
{
con* p_con = get_con();
vec_elements = map_queries[s_query];
string s_mysql_query = "SELECT ";
vector<string>::iterator iter = vec_elements.begin();
string s_table = *iter;
iter++;
while ( iter != vec_elements.end() )
{
s_mysql_query.append( secure_query(*iter) );
if ( ++iter != vec_elements.end() )
s_mysql_query.append( ", " );
}
s_mysql_query.append(" FROM " + s_table + s_where_rule );
print_query( MYSQLQU + s_mysql_query );
MYSQL_RES* p_result = NULL;
if ( 0 == mysql_query( p_con->p_mysql, (const char*)s_mysql_query.c_str() ) )
{
p_result = mysql_store_result( p_con->p_mysql );
push_con( p_con );
}
else
{
wrap::system_message( MYSQLQU + string( mysql_error(p_con->p_mysql) ) );
if (p_con != NULL)
delete p_con;
}
return p_result;
}
hashmap<string>
data::parse_result( MYSQL_RES* p_result, vector<string>& vec_elements )
{
hashmap<string> map_ret;
if ( p_result != NULL )
{
MYSQL_ROW row;
vector<string>::iterator vec_iter = vec_elements.begin();
vec_iter++;
while( (row = mysql_fetch_row(p_result)) )
for ( int i=0; i < mysql_num_fields(p_result); i++, vec_iter++ )
map_ret[*vec_iter] = string(row[i]);
mysql_free_result( p_result );
}
return map_ret;
}
void
data::insert_user_data( string s_user, string s_query, map<string,string> insert_map )
{
insert_query( s_query, insert_map );
}
void
data::insert_query( string s_query, map<string,string> map_insert )
{
vector<string> vec_elements = map_queries[s_query];
vector<string>::iterator iter = vec_elements.begin();
string s_table = *iter;
iter++;
string s_mysql_query = "INSERT INTO " + s_table + " (";
while ( iter != vec_elements.end() )
{
s_mysql_query.append( *iter );
if ( ++iter != vec_elements.end() )
s_mysql_query.append( ", " );
else
s_mysql_query.append( ") VALUES(" );
}
iter = vec_elements.begin();
iter++;
while ( iter != vec_elements.end() )
{
s_mysql_query.append( "\"" + secure_query(map_insert[*iter]) + "\"" );
if ( ++iter != vec_elements.end() )
s_mysql_query.append( ", " );
else
s_mysql_query.append( ")" );
}
print_query( MYSQLQU + s_mysql_query );
con* p_con = get_con();
if ( 0 != mysql_query( p_con->p_mysql, (const char*)s_mysql_query.c_str() ) )
wrap::system_message( MYSQLQU + string( mysql_error(p_con->p_mysql) ) );
push_con( p_con );
return;
}
void
data::update_user_data( string s_user, string s_query, hashmap<string> update_map )
{
vector<string> vec_elements = map_queries[s_query];
if ( vec_elements.size() == 0 )
return;
vector<string>::iterator iter = vec_elements.begin();
vector<string>::iterator iter_second = vec_elements.begin();
iter_second++;
string s_table = *iter;
iter++;
string s_mysql_query = "UPDATE " + s_table + " SET ";
bool b_flag = 0;
while ( iter != vec_elements.end() )
{
if ( update_map[*iter] == "" ) // Dont update data if it has not been changed / if its empty!
{
iter++;
continue;
}
if ( iter != iter_second && b_flag )
s_mysql_query.append( ", " );
s_mysql_query.append( *iter + "=\"" + secure_query(update_map[*iter]) + "\"" );
b_flag = 1;
iter++;
}
if ( b_flag )
{
s_mysql_query.append( " WHERE nick=\"" + tool::to_lower(s_user) + "\"" );
con* p_con = get_con();
print_query( MYSQLQU + s_mysql_query );
if ( 0 != mysql_query( p_con->p_mysql, (const char*)s_mysql_query.c_str() ) )
wrap::system_message( MYSQLQU + string( mysql_error(p_con->p_mysql) ) );
push_con( p_con );
}
}
string
data::secure_query( string s_mysql_query )
{
// Prevent from MySQL injection attacks (escaping " and \)
unsigned i_pos = s_mysql_query.find("\\");
while ( i_pos != string::npos )
{
s_mysql_query.replace( i_pos, 1, "/" );
i_pos = s_mysql_query.find("\\");
}
i_pos = s_mysql_query.find("\"");
while ( i_pos != string::npos )
{
s_mysql_query.replace( i_pos, 1, "'" );
i_pos = s_mysql_query.find("\"");
}
return s_mysql_query;
}
#endif
#endif
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