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443
by dcoles
Added Forum application along with unmodifed version of phpBB3 "Olympus" 3.0.0 |
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<?php
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2 |
/**
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3 |
*
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* @package dbal
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* @version $Id: firebird.php,v 1.57 2007/10/05 14:36:32 acydburn Exp $
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* @copyright (c) 2005 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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||
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/**
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* @ignore
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*/
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14 |
if (!defined('IN_PHPBB')) |
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{
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exit; |
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}
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18 |
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19 |
include_once($phpbb_root_path . 'includes/db/dbal.' . $phpEx); |
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21 |
/**
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* Firebird/Interbase Database Abstraction Layer
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* Minimum Requirement is Firebird 2.0
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* @package dbal
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25 |
*/
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class dbal_firebird extends dbal |
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{
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var $last_query_text = ''; |
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var $service_handle = false; |
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var $affected_rows = 0; |
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31 |
||
32 |
/**
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* Connect to server
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34 |
*/
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35 |
function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false) |
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36 |
{
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37 |
$this->persistency = $persistency; |
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38 |
$this->user = $sqluser; |
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39 |
$this->server = $sqlserver . (($port) ? ':' . $port : ''); |
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$this->dbname = $database; |
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41 |
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42 |
$this->db_connect_id = ($this->persistency) ? @ibase_pconnect($this->server . ':' . $this->dbname, $this->user, $sqlpassword, false, false, 3) : @ibase_connect($this->server . ':' . $this->dbname, $this->user, $sqlpassword, false, false, 3); |
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43 |
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44 |
$this->service_handle = (function_exists('ibase_service_attach')) ? @ibase_service_attach($this->server, $this->user, $sqlpassword) : false; |
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45 |
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46 |
return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error(''); |
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47 |
}
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48 |
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49 |
/**
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* Version information about used database
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51 |
*/
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52 |
function sql_server_info() |
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53 |
{
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54 |
if ($this->service_handle !== false && function_exists('ibase_server_info')) |
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55 |
{
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56 |
return @ibase_server_info($this->service_handle, IBASE_SVC_SERVER_VERSION); |
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57 |
}
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58 |
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59 |
return 'Firebird/Interbase'; |
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60 |
}
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61 |
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62 |
/**
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63 |
* SQL Transaction
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64 |
* @access private
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65 |
*/
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66 |
function _sql_transaction($status = 'begin') |
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{
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68 |
switch ($status) |
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{
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70 |
case 'begin': |
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return true; |
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72 |
break; |
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73 |
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74 |
case 'commit': |
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75 |
return @ibase_commit(); |
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76 |
break; |
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77 |
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78 |
case 'rollback': |
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79 |
return @ibase_rollback(); |
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80 |
break; |
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81 |
}
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82 |
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83 |
return true; |
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84 |
}
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85 |
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86 |
/**
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* Base query method
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88 |
*
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89 |
* @param string $query Contains the SQL query which shall be executed
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90 |
* @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
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* @return mixed When casted to bool the returned value returns true on success and false on failure
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*
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93 |
* @access public
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94 |
*/
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95 |
function sql_query($query = '', $cache_ttl = 0) |
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{
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97 |
if ($query != '') |
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98 |
{
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global $cache; |
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100 |
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101 |
// EXPLAIN only in extra debug mode
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102 |
if (defined('DEBUG_EXTRA')) |
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{
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$this->sql_report('start', $query); |
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}
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$this->last_query_text = $query; |
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$this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false; |
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109 |
$this->sql_add_num_queries($this->query_result); |
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110 |
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111 |
if ($this->query_result === false) |
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{
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$array = array(); |
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114 |
// We overcome Firebird's 32767 char limit by binding vars
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115 |
if (strlen($query) > 32767) |
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116 |
{
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117 |
if (preg_match('/^(INSERT INTO[^(]++)\\(([^()]+)\\) VALUES[^(]++\\((.*?)\\)$/s', $query, $regs)) |
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118 |
{
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119 |
if (strlen($regs[3]) > 32767) |
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120 |
{
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preg_match_all('/\'(?:[^\']++|\'\')*+\'|[\d-.]+/', $regs[3], $vals, PREG_PATTERN_ORDER); |
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$inserts = $vals[0]; |
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unset($vals); |
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126 |
foreach ($inserts as $key => $value) |
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{
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128 |
if (!empty($value) && $value[0] === "'" && strlen($value) > 32769) // check to see if this thing is greater than the max + 'x2 |
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{
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$inserts[$key] = '?'; |
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$array[] = str_replace("''", "'", substr($value, 1, -1)); |
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}
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}
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$query = $regs[1] . '(' . $regs[2] . ') VALUES (' . implode(', ', $inserts) . ')'; |
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}
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}
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else if (preg_match('/^(UPDATE ([\\w_]++)\\s+SET )([\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|\\d+)(?:,\\s*[\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+)\\s+(WHERE.*)$/s', $query, $data)) |
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{
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if (strlen($data[3]) > 32767) |
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{
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$update = $data[1]; |
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$where = $data[4]; |
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preg_match_all('/(\\w++)\\s*=\\s*(\'(?:[^\']++|\'\')*+\'|[\d-.]++)/', $data[3], $temp, PREG_SET_ORDER); |
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unset($data); |
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$cols = array(); |
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foreach ($temp as $value) |
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{
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if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 32769) // check to see if this thing is greater than the max + 'x2 |
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{
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$array[] = str_replace("''", "'", substr($value[2], 1, -1)); |
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$cols[] = $value[1] . '=?'; |
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}
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else
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{
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$cols[] = $value[1] . '=' . $value[2]; |
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158 |
}
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159 |
}
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$query = $update . implode(', ', $cols) . ' ' . $where; |
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unset($cols); |
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163 |
}
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}
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165 |
}
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if (!function_exists('ibase_affected_rows') && (preg_match('/^UPDATE ([\w_]++)\s+SET [\w_]++\s*=\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+)(?:,\s*[\w_]++\s*=\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+\s+(WHERE.*)?$/s', $query, $regs) || preg_match('/^DELETE FROM ([\w_]++)\s*(WHERE\s*.*)?$/s', $query, $regs))) |
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168 |
{
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169 |
$affected_sql = 'SELECT COUNT(*) as num_rows_affected FROM ' . $regs[1]; |
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170 |
if (!empty($regs[2])) |
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171 |
{
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172 |
$affected_sql .= ' ' . $regs[2]; |
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173 |
}
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174 |
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175 |
if (!($temp_q_id = @ibase_query($this->db_connect_id, $affected_sql))) |
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176 |
{
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177 |
return false; |
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178 |
}
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179 |
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180 |
$temp_result = @ibase_fetch_assoc($temp_q_id); |
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181 |
@ibase_free_result($temp_q_id); |
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182 |
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183 |
$this->affected_rows = ($temp_result) ? $temp_result['NUM_ROWS_AFFECTED'] : false; |
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184 |
}
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185 |
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186 |
if (sizeof($array)) |
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187 |
{
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188 |
$p_query = @ibase_prepare($this->db_connect_id, $query); |
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189 |
array_unshift($array, $p_query); |
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190 |
$this->query_result = call_user_func_array('ibase_execute', $array); |
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191 |
unset($array); |
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192 |
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193 |
if ($this->query_result === false) |
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194 |
{
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195 |
$this->sql_error($query); |
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196 |
}
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197 |
}
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198 |
else if (($this->query_result = @ibase_query($this->db_connect_id, $query)) === false) |
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199 |
{
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200 |
$this->sql_error($query); |
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201 |
}
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202 |
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203 |
if (defined('DEBUG_EXTRA')) |
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204 |
{
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205 |
$this->sql_report('stop', $query); |
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206 |
}
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207 |
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208 |
if (!$this->transaction) |
|
209 |
{
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210 |
if (function_exists('ibase_commit_ret')) |
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211 |
{
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212 |
@ibase_commit_ret(); |
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213 |
}
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214 |
else
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215 |
{
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216 |
// way cooler than ibase_commit_ret :D
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217 |
@ibase_query('COMMIT RETAIN;'); |
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218 |
}
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219 |
}
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220 |
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221 |
if ($cache_ttl && method_exists($cache, 'sql_save')) |
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222 |
{
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223 |
$this->open_queries[(int) $this->query_result] = $this->query_result; |
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224 |
$cache->sql_save($query, $this->query_result, $cache_ttl); |
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225 |
}
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226 |
else if (strpos($query, 'SELECT') === 0 && $this->query_result) |
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227 |
{
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228 |
$this->open_queries[(int) $this->query_result] = $this->query_result; |
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229 |
}
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230 |
}
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231 |
else if (defined('DEBUG_EXTRA')) |
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232 |
{
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233 |
$this->sql_report('fromcache', $query); |
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234 |
}
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235 |
}
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236 |
else
|
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237 |
{
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238 |
return false; |
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239 |
}
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240 |
||
241 |
return ($this->query_result) ? $this->query_result : false; |
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242 |
}
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243 |
||
244 |
/**
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245 |
* Build LIMIT query
|
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246 |
*/
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247 |
function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) |
|
248 |
{
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|
249 |
$this->query_result = false; |
|
250 |
||
251 |
$query = 'SELECT FIRST ' . $total . ((!empty($offset)) ? ' SKIP ' . $offset : '') . substr($query, 6); |
|
252 |
||
253 |
return $this->sql_query($query, $cache_ttl); |
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254 |
}
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|
255 |
||
256 |
/**
|
|
257 |
* Return number of affected rows
|
|
258 |
*/
|
|
259 |
function sql_affectedrows() |
|
260 |
{
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|
261 |
// PHP 5+ function
|
|
262 |
if (function_exists('ibase_affected_rows')) |
|
263 |
{
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|
264 |
return ($this->db_connect_id) ? @ibase_affected_rows($this->db_connect_id) : false; |
|
265 |
}
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|
266 |
else
|
|
267 |
{
|
|
268 |
return $this->affected_rows; |
|
269 |
}
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|
270 |
}
|
|
271 |
||
272 |
/**
|
|
273 |
* Fetch current row
|
|
274 |
*/
|
|
275 |
function sql_fetchrow($query_id = false) |
|
276 |
{
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|
277 |
global $cache; |
|
278 |
||
279 |
if ($query_id === false) |
|
280 |
{
|
|
281 |
$query_id = $this->query_result; |
|
282 |
}
|
|
283 |
||
284 |
if (isset($cache->sql_rowset[$query_id])) |
|
285 |
{
|
|
286 |
return $cache->sql_fetchrow($query_id); |
|
287 |
}
|
|
288 |
||
289 |
if ($query_id === false) |
|
290 |
{
|
|
291 |
return false; |
|
292 |
}
|
|
293 |
||
294 |
$row = array(); |
|
295 |
$cur_row = @ibase_fetch_object($query_id, IBASE_TEXT); |
|
296 |
||
297 |
if (!$cur_row) |
|
298 |
{
|
|
299 |
return false; |
|
300 |
}
|
|
301 |
||
302 |
foreach (get_object_vars($cur_row) as $key => $value) |
|
303 |
{
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|
304 |
$row[strtolower($key)] = (is_string($value)) ? trim(str_replace(array("\\0", "\\n"), array("\0", "\n"), $value)) : $value; |
|
305 |
}
|
|
306 |
||
307 |
return (sizeof($row)) ? $row : false; |
|
308 |
}
|
|
309 |
||
310 |
/**
|
|
311 |
* Seek to given row number
|
|
312 |
* rownum is zero-based
|
|
313 |
*/
|
|
314 |
function sql_rowseek($rownum, &$query_id) |
|
315 |
{
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|
316 |
global $cache; |
|
317 |
||
318 |
if ($query_id === false) |
|
319 |
{
|
|
320 |
$query_id = $this->query_result; |
|
321 |
}
|
|
322 |
||
323 |
if (isset($cache->sql_rowset[$query_id])) |
|
324 |
{
|
|
325 |
return $cache->sql_rowseek($rownum, $query_id); |
|
326 |
}
|
|
327 |
||
328 |
if ($query_id === false) |
|
329 |
{
|
|
330 |
return; |
|
331 |
}
|
|
332 |
||
333 |
$this->sql_freeresult($query_id); |
|
334 |
$query_id = $this->sql_query($this->last_query_text); |
|
335 |
||
336 |
if ($query_id === false) |
|
337 |
{
|
|
338 |
return false; |
|
339 |
}
|
|
340 |
||
341 |
// We do not fetch the row for rownum == 0 because then the next resultset would be the second row
|
|
342 |
for ($i = 0; $i < $rownum; $i++) |
|
343 |
{
|
|
344 |
if (!$this->sql_fetchrow($query_id)) |
|
345 |
{
|
|
346 |
return false; |
|
347 |
}
|
|
348 |
}
|
|
349 |
||
350 |
return true; |
|
351 |
}
|
|
352 |
||
353 |
/**
|
|
354 |
* Get last inserted id after insert statement
|
|
355 |
*/
|
|
356 |
function sql_nextid() |
|
357 |
{
|
|
358 |
$query_id = $this->query_result; |
|
359 |
||
360 |
if ($query_id !== false && $this->last_query_text != '') |
|
361 |
{
|
|
362 |
if ($this->query_result && preg_match('#^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)#i', $this->last_query_text, $tablename)) |
|
363 |
{
|
|
364 |
$sql = 'SELECT GEN_ID(' . $tablename[1] . '_gen, 0) AS new_id FROM RDB$DATABASE'; |
|
365 |
||
366 |
if (!($temp_q_id = @ibase_query($this->db_connect_id, $sql))) |
|
367 |
{
|
|
368 |
return false; |
|
369 |
}
|
|
370 |
||
371 |
$temp_result = @ibase_fetch_assoc($temp_q_id); |
|
372 |
@ibase_free_result($temp_q_id); |
|
373 |
||
374 |
return ($temp_result) ? $temp_result['NEW_ID'] : false; |
|
375 |
}
|
|
376 |
}
|
|
377 |
||
378 |
return false; |
|
379 |
}
|
|
380 |
||
381 |
/**
|
|
382 |
* Free sql result
|
|
383 |
*/
|
|
384 |
function sql_freeresult($query_id = false) |
|
385 |
{
|
|
386 |
global $cache; |
|
387 |
||
388 |
if ($query_id === false) |
|
389 |
{
|
|
390 |
$query_id = $this->query_result; |
|
391 |
}
|
|
392 |
||
393 |
if (isset($cache->sql_rowset[$query_id])) |
|
394 |
{
|
|
395 |
return $cache->sql_freeresult($query_id); |
|
396 |
}
|
|
397 |
||
398 |
if (isset($this->open_queries[(int) $query_id])) |
|
399 |
{
|
|
400 |
unset($this->open_queries[(int) $query_id]); |
|
401 |
return @ibase_free_result($query_id); |
|
402 |
}
|
|
403 |
||
404 |
return false; |
|
405 |
}
|
|
406 |
||
407 |
/**
|
|
408 |
* Escape string used in sql query
|
|
409 |
*/
|
|
410 |
function sql_escape($msg) |
|
411 |
{
|
|
412 |
return str_replace("'", "''", $msg); |
|
413 |
}
|
|
414 |
||
415 |
/**
|
|
416 |
* Build LIKE expression
|
|
417 |
* @access private
|
|
418 |
*/
|
|
419 |
function _sql_like_expression($expression) |
|
420 |
{
|
|
421 |
return $expression . " ESCAPE '\\'"; |
|
422 |
}
|
|
423 |
||
424 |
/**
|
|
425 |
* Build db-specific query data
|
|
426 |
* @access private
|
|
427 |
*/
|
|
428 |
function _sql_custom_build($stage, $data) |
|
429 |
{
|
|
430 |
return $data; |
|
431 |
}
|
|
432 |
||
433 |
/**
|
|
434 |
* return sql error array
|
|
435 |
* @access private
|
|
436 |
*/
|
|
437 |
function _sql_error() |
|
438 |
{
|
|
439 |
return array( |
|
440 |
'message' => @ibase_errmsg(), |
|
441 |
'code' => (@function_exists('ibase_errcode') ? @ibase_errcode() : '') |
|
442 |
);
|
|
443 |
}
|
|
444 |
||
445 |
/**
|
|
446 |
* Close sql connection
|
|
447 |
* @access private
|
|
448 |
*/
|
|
449 |
function _sql_close() |
|
450 |
{
|
|
451 |
if ($this->service_handle !== false) |
|
452 |
{
|
|
453 |
@ibase_service_detach($this->service_handle); |
|
454 |
}
|
|
455 |
||
456 |
return @ibase_close($this->db_connect_id); |
|
457 |
}
|
|
458 |
||
459 |
/**
|
|
460 |
* Build db-specific report
|
|
461 |
* @access private
|
|
462 |
*/
|
|
463 |
function _sql_report($mode, $query = '') |
|
464 |
{
|
|
465 |
switch ($mode) |
|
466 |
{
|
|
467 |
case 'start': |
|
468 |
break; |
|
469 |
||
470 |
case 'fromcache': |
|
471 |
$endtime = explode(' ', microtime()); |
|
472 |
$endtime = $endtime[0] + $endtime[1]; |
|
473 |
||
474 |
$result = @ibase_query($this->db_connect_id, $query); |
|
475 |
while ($void = @ibase_fetch_object($result, IBASE_TEXT)) |
|
476 |
{
|
|
477 |
// Take the time spent on parsing rows into account
|
|
478 |
}
|
|
479 |
@ibase_free_result($result); |
|
480 |
||
481 |
$splittime = explode(' ', microtime()); |
|
482 |
$splittime = $splittime[0] + $splittime[1]; |
|
483 |
||
484 |
$this->sql_report('record_fromcache', $query, $endtime, $splittime); |
|
485 |
||
486 |
break; |
|
487 |
}
|
|
488 |
}
|
|
489 |
}
|
|
490 |
||
491 |
?>
|