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// // ------------------------------------------------------------------------ // // 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. // // // // You may not change or alter any portion of this comment or credits // // of supporting developers from this source code or any supporting // // source code which is considered copyrighted (c) material of the // // original comment or credit authors. // // // // 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 // // ------------------------------------------------------------------------ // // Author: Kazumi Ono (AKA onokazu) // // URL: http://www.myweb.ne.jp/, http://www.xoops.org/, http://jp.xoops.org/ // // Project: The XOOPS Project // // ------------------------------------------------------------------------- // /** * @package kernel * @subpackage database * * @author Kazumi Ono * @copyright copyright (c) 2000-2003 XOOPS.org */ if (!defined('XOOPS_ROOT_PATH')) exit(); /** * base class */ include_once XOOPS_ROOT_PATH.'/class/database/database.php'; if (!defined('MYSQL_CLIENT_FOUND_ROWS')) { define('MYSQL_CLIENT_FOUND_ROWS', 2); } /** * connection to a mysql database * * @abstract * * @author Kazumi Ono * @copyright copyright (c) 2000-2003 XOOPS.org * * @package kernel * @subpackage database */ class XoopsMySQLDatabase extends XoopsDatabase { /** * Database connection * @var resource */ var $conn; /** * String for Emulation prepare * @var string */ var $mPrepareQuery=null; /** * connect to the database * * @param bool $selectdb select the database now? * @return bool successful? */ function connect($selectdb = true) { if (XOOPS_DB_PCONNECT == 1) { $this->conn = @mysql_pconnect(XOOPS_DB_HOST, XOOPS_DB_USER, XOOPS_DB_PASS, MYSQL_CLIENT_FOUND_ROWS); } else { $this->conn = @mysql_connect(XOOPS_DB_HOST, XOOPS_DB_USER, XOOPS_DB_PASS, false, MYSQL_CLIENT_FOUND_ROWS); } if (!$this->conn) { $this->logger->addQuery('', $this->error(), $this->errno()); return false; } if($selectdb != false){ if (!mysql_select_db(XOOPS_DB_NAME)) { $this->logger->addQuery('', $this->error(), $this->errno()); return false; } } return true; } /** * generate an ID for a new row * * This is for compatibility only. Will always return 0, because MySQL supports * autoincrement for primary keys. * * @param string $sequence name of the sequence from which to get the next ID * @return int always 0, because mysql has support for autoincrement */ function genId($sequence) { return 0; // will use auto_increment } /** * Get a result row as an enumerated array * * @param resource $result * @return array */ function fetchRow($result) { return @mysql_fetch_row($result); } /** * Fetch a result row as an associative array * * @return array */ function fetchArray($result) { return @mysql_fetch_assoc( $result ); } /** * Fetch a result row as an associative array * * @return array */ function fetchBoth($result) { return @mysql_fetch_array( $result, MYSQL_BOTH ); } /** * Get the ID generated from the previous INSERT operation * * @return int */ function getInsertId() { return mysql_insert_id($this->conn); } /** * Get number of rows in result * * @param resource query result * @return int */ function getRowsNum($result) { return @mysql_num_rows($result); } /** * Get number of affected rows * * @return int */ function getAffectedRows() { return mysql_affected_rows($this->conn); } /** * Close MySQL connection * */ function close() { mysql_close($this->conn); } /** * will free all memory associated with the result identifier result. * * @param resource query result * @return bool TRUE on success or FALSE on failure. */ function freeRecordSet($result) { return mysql_free_result($result); } /** * Returns the text of the error message from previous MySQL operation * * @return bool Returns the error text from the last MySQL function, or '' (the empty string) if no error occurred. */ function error() { return @mysql_error(); } /** * Returns the numerical value of the error message from previous MySQL operation * * @return int Returns the error number from the last MySQL function, or 0 (zero) if no error occurred. */ function errno() { return @mysql_errno(); } /** * Returns escaped string text with single quotes around it to be safely stored in database * * @param string $str unescaped string text * @return string escaped string text with single quotes around */ function quoteString($str) { $str = '\''.mysql_real_escape_string($str, $this->conn).'\''; return $str; } /** * perform a query on the database * * @param string $sql a valid MySQL query * @param int $limit number of records to return * @param int $start offset of first record to return * @return resource query result or FALSE if successful * or TRUE if successful and no result */ function &queryF($sql, $limit=0, $start=0) { if ( !empty($limit) ) { if (empty($start)) { $sql .= ' LIMIT ' . (int)$limit; } else { $sql = $sql. ' LIMIT '.(int)$start.', '.(int)$limit; } } $result = mysql_query($sql, $this->conn); if ( $result ) { $this->logger->addQuery($sql); return $result; } else { $this->logger->addQuery($sql, $this->error(), $this->errno()); $ret = false; return $ret; } } /** * perform a query * * This method is empty and does nothing! It should therefore only be * used if nothing is exactly what you want done! ;-) * * @param string $sql a valid MySQL query * @param int $limit number of records to return * @param int $start offset of first record to return * * @abstract */ function &query($sql, $limit=0, $start=0) { } /** * perform queries from SQL dump file in a batch * * @param string $file file path to an SQL dump file * * @return bool FALSE if failed reading SQL file or TRUE if the file has been read and queries executed */ function queryFromFile($file){ if (false !== ($fp = fopen($file, 'r'))) { include_once XOOPS_ROOT_PATH.'/class/database/sqlutility.php'; $sql_queries = trim(fread($fp, filesize($file))); SqlUtility::splitMySqlFile($pieces, $sql_queries); foreach ($pieces as $query) { // [0] contains the prefixed query // [4] contains unprefixed table name $prefixed_query = SqlUtility::prefixQuery(trim($query), $this->prefix()); if ($prefixed_query != false) { $this->query($prefixed_query[0]); } } return true; } return false; } /** * Get field name * * @param resource $result query result * @param int numerical field index * @return string */ function getFieldName($result, $offset) { return mysql_field_name($result, $offset); } /** * Get field type * * @param resource $result query result * @param int $offset numerical field index * @return string */ function getFieldType($result, $offset) { return mysql_field_type($result, $offset); } /** * Get number of fields in result * * @param resource $result query result * @return int */ function getFieldsNum($result) { return mysql_num_fields($result); } /** * Emulates prepare(), but this is TEST API. * @remark This is TEST API. This method should be called by only Legacy. */ function prepare($query) { $count=0; while(($pos=strpos($query,'?'))!==false) { $pre=substr($query,0,$pos); $after=''; if($pos+1<=strlen($query)) $after=substr($query,$pos+1); $query=$pre.'{'.$count.'}'.$after; $count++; } $this->mPrepareQuery=$query; } /** * Emulates bind_param(), but this is TEST API. * @remark This is TEST API. This method should be called by only Legacy. */ function bind_param() { if(func_num_args()<2) return; $types=func_get_arg(0); $count=strlen($types); if(func_num_args()<$count) return; $searches=array(); $replaces=array(); for($i=0;$i<$count;$i++) { $searches[$i]='{'.$i.'}'; switch(substr($types,$i,1)) { case 'i': $replaces[$i]=(int)func_get_arg($i+1); break; case 's': $replaces[$i]=$this->quoteString(func_get_arg($i+1)); break; case 'd': $replaces[$i]=doubleval(func_get_arg($i+1)); break; case 'b': // Exception die(); } } $this->mPrepareQuery=str_replace($searches,$replaces,$this->mPrepareQuery); } /** * Executes prepared SQL with query(), but this is TEST API. * @remark This is TEST API. This method should be called by only Legacy. */ function &execute() { $result=&$this->query($this->mPrepareQuery); $this->mPrepareQuery=null; return $result; } /** * Executes prepared SQL with queryF(), but this is TEST API. * @remark This is TEST API. This method should be called by only Legacy. */ function &executeF() { $result=&$this->queryF($this->mPrepareQuery); $this->mPrepareQuery=null; return $result; } } /** * Safe Connection to a MySQL database. * * * @author Kazumi Ono * @copyright copyright (c) 2000-2003 XOOPS.org * * @package kernel * @subpackage database */ class XoopsMySQLDatabaseSafe extends XoopsMySQLDatabase { /** * perform a query on the database * * @param string $sql a valid MySQL query * @param int $limit number of records to return * @param int $start offset of first record to return * @return resource query result or FALSE if successful * or TRUE if successful and no result */ function &query($sql, $limit=0, $start=0) { $result =& $this->queryF($sql, $limit, $start); return $result; } } /** * Read-Only connection to a MySQL database. * * This class allows only SELECT queries to be performed through its * {@link query()} method for security reasons. * * * @author Kazumi Ono * @copyright copyright (c) 2000-2003 XOOPS.org * * @package kernel * @subpackage database */ class XoopsMySQLDatabaseProxy extends XoopsMySQLDatabase { /** * perform a query on the database * * this method allows only SELECT queries for safety. * * @param string $sql a valid MySQL query * @param int $limit number of records to return * @param int $start offset of first record to return * @return resource query result or FALSE if unsuccessful */ function &query($sql, $limit=0, $start=0) { $sql = ltrim($sql); if (preg_match('/^SELECT/i', $sql)) { $ret = $this->queryF($sql, $limit, $start); return $ret; } $this->logger->addQuery($sql, 'Database update not allowed during processing of a GET request', 0); $ret = false; return $ret; } } ?>