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vichan/inc/database.php

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<?php
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/*
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* Copyright (c) 2010-2013 Tinyboard Development Group
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*/
defined('TINYBOARD') or exit;
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class PreparedQueryDebug {
protected $query, $explain_query = false;
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public function __construct($query) {
global $pdo, $config;
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$query = preg_replace("/[\n\t]+/", ' ', $query);
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$this->query = $pdo->prepare($query);
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if ($config['debug'] && $config['debug_explain'] && preg_match('/^(SELECT|INSERT|UPDATE|DELETE) /i', $query))
$this->explain_query = $pdo->prepare("EXPLAIN $query");
}
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public function __call($function, $args) {
global $config, $debug;
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if ($config['debug'] && $function == 'execute') {
if ($this->explain_query) {
$this->explain_query->execute() or error(db_error($this->explain_query));
}
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$start = microtime(true);
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}
if ($this->explain_query && $function == 'bindValue')
call_user_func_array(array($this->explain_query, $function), $args);
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$return = call_user_func_array(array($this->query, $function), $args);
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if ($config['debug'] && $function == 'execute') {
$time = microtime(true) - $start;
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$debug['sql'][] = array(
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'query' => $this->query->queryString,
'rows' => $this->query->rowCount(),
'explain' => $this->explain_query ? $this->explain_query->fetchAll(PDO::FETCH_ASSOC) : null,
'time' => '~' . round($time * 1000, 2) . 'ms'
);
$debug['time']['db_queries'] += $time;
}
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return $return;
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}
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}
function sql_open() {
global $pdo, $config, $debug;
if ($pdo)
return true;
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if ($config['debug'])
$start = microtime(true);
if (isset($config['db']['server'][0]) && $config['db']['server'][0] == ':')
$unix_socket = substr($config['db']['server'], 1);
else
$unix_socket = false;
$dsn = $config['db']['type'] . ':' .
($unix_socket ? 'unix_socket=' . $unix_socket : 'host=' . $config['db']['server']) .
';dbname=' . $config['db']['database'];
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if (!empty($config['db']['dsn']))
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$dsn .= ';' . $config['db']['dsn'];
try {
$options = array(
PDO::ATTR_TIMEOUT => $config['db']['timeout'],
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true
);
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if ($config['db']['persistent'])
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$options[PDO::ATTR_PERSISTENT] = true;
$pdo = new PDO($dsn, $config['db']['user'], $config['db']['password'], $options);
if ($config['debug'])
$debug['time']['db_connect'] = '~' . round((microtime(true) - $start) * 1000, 2) . 'ms';
if (mysql_version() >= 50503)
query('SET NAMES utf8mb4') or error(db_error());
else
query('SET NAMES utf8') or error(db_error());
return $pdo;
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} catch(PDOException $e) {
$message = $e->getMessage();
// Remove any sensitive information
$message = str_replace($config['db']['user'], '<em>hidden</em>', $message);
$message = str_replace($config['db']['password'], '<em>hidden</em>', $message);
// Print error
error(_('Database error: ') . $message);
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}
}
// 5.6.10 becomes 50610
function mysql_version() {
global $pdo;
$version = $pdo->getAttribute(PDO::ATTR_SERVER_VERSION);
$v = explode('.', $version);
if (count($v) != 3)
return false;
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return (int) sprintf("%02d%02d%02d", $v[0], $v[1], is_int($v[2]) ? (int)$v[2] : 0);
}
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function prepare($query) {
global $pdo, $debug, $config;
$query = preg_replace('/``('.$config['board_regex'].')``/u', '`' . $config['db']['prefix'] . '$1`', $query);
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sql_open();
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if ($config['debug'])
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return new PreparedQueryDebug($query);
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return $pdo->prepare($query);
}
function query($query) {
global $pdo, $debug, $config;
$query = preg_replace('/``('.$config['board_regex'].')``/u', '`' . $config['db']['prefix'] . '$1`', $query);
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sql_open();
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if ($config['debug']) {
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if ($config['debug_explain'] && preg_match('/^(SELECT|INSERT|UPDATE|DELETE) /i', $query)) {
$explain = $pdo->query("EXPLAIN $query") or error(db_error());
}
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$start = microtime(true);
$query = $pdo->query($query);
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if (!$query)
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return false;
$time = microtime(true) - $start;
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$debug['sql'][] = array(
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'query' => $query->queryString,
'rows' => $query->rowCount(),
'explain' => isset($explain) ? $explain->fetchAll(PDO::FETCH_ASSOC) : null,
'time' => '~' . round($time * 1000, 2) . 'ms'
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);
$debug['time']['db_queries'] += $time;
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return $query;
}
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return $pdo->query($query);
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}
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function db_error($PDOStatement = null) {
global $pdo, $db_error;
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if (isset($PDOStatement)) {
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$db_error = $PDOStatement->errorInfo();
return $db_error[2];
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}
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$db_error = $pdo->errorInfo();
return $db_error[2];
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}