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Filename : SqliteProfilerStorage.php
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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\Profiler;

/**
 * SqliteProfilerStorage stores profiling information in a SQLite database.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class SqliteProfilerStorage extends PdoProfilerStorage
{
    /**
     * @throws \RuntimeException When neither of SQLite3 or PDO_SQLite extension is enabled
     */
    protected function initDb()
    {
        if (null === $this->db || $this->db instanceof \SQLite3) {
            if (0 !== strpos($this->dsn, 'sqlite')) {
                throw new \RuntimeException(sprintf('Please check your configuration. You are trying to use Sqlite with an invalid dsn "%s". The expected format is "sqlite:/path/to/the/db/file".', $this->dsn));
            }
            if (class_exists('SQLite3')) {
                $db = new \SQLite3(substr($this->dsn, 7, strlen($this->dsn)), \SQLITE3_OPEN_READWRITE | \SQLITE3_OPEN_CREATE);
                if (method_exists($db, 'busyTimeout')) {
                    // busyTimeout only exists for PHP >= 5.3.3
                    $db->busyTimeout(1000);
                }
            } elseif (class_exists('PDO') && in_array('sqlite', \PDO::getAvailableDrivers(), true)) {
                $db = new \PDO($this->dsn);
            } else {
                throw new \RuntimeException('You need to enable either the SQLite3 or PDO_SQLite extension for the profiler to run properly.');
            }

            $db->exec('PRAGMA temp_store=MEMORY; PRAGMA journal_mode=MEMORY;');
            $db->exec('CREATE TABLE IF NOT EXISTS sf_profiler_data (token STRING, data STRING, ip STRING, method STRING, url STRING, time INTEGER, parent STRING, created_at INTEGER)');
            $db->exec('CREATE INDEX IF NOT EXISTS data_created_at ON sf_profiler_data (created_at)');
            $db->exec('CREATE INDEX IF NOT EXISTS data_ip ON sf_profiler_data (ip)');
            $db->exec('CREATE INDEX IF NOT EXISTS data_method ON sf_profiler_data (method)');
            $db->exec('CREATE INDEX IF NOT EXISTS data_url ON sf_profiler_data (url)');
            $db->exec('CREATE INDEX IF NOT EXISTS data_parent ON sf_profiler_data (parent)');
            $db->exec('CREATE UNIQUE INDEX IF NOT EXISTS data_token ON sf_profiler_data (token)');

            $this->db = $db;
        }

        return $this->db;
    }

    protected function exec($db, $query, array $args = array())
    {
        if ($db instanceof \SQLite3) {
            $stmt = $this->prepareStatement($db, $query);
            foreach ($args as $arg => $val) {
                $stmt->bindValue($arg, $val, is_int($val) ? \SQLITE3_INTEGER : \SQLITE3_TEXT);
            }

            $res = $stmt->execute();
            if (false === $res) {
                throw new \RuntimeException(sprintf('Error executing SQLite query "%s"', $query));
            }
            $res->finalize();
        } else {
            parent::exec($db, $query, $args);
        }
    }

    protected function fetch($db, $query, array $args = array())
    {
        $return = array();

        if ($db instanceof \SQLite3) {
            $stmt = $this->prepareStatement($db, $query, true);
            foreach ($args as $arg => $val) {
                $stmt->bindValue($arg, $val, is_int($val) ? \SQLITE3_INTEGER : \SQLITE3_TEXT);
            }
            $res = $stmt->execute();
            while ($row = $res->fetchArray(\SQLITE3_ASSOC)) {
                $return[] = $row;
            }
            $res->finalize();
            $stmt->close();
        } else {
            $return = parent::fetch($db, $query, $args);
        }

        return $return;
    }

    /**
     * {@inheritdoc}
     */
    protected function buildCriteria($ip, $url, $start, $end, $limit, $method)
    {
        $criteria = array();
        $args = array();

        if ($ip = preg_replace('/[^\d\.]/', '', $ip)) {
            $criteria[] = 'ip LIKE :ip';
            $args[':ip'] = '%'.$ip.'%';
        }

        if ($url) {
            $criteria[] = 'url LIKE :url ESCAPE "\"';
            $args[':url'] = '%'.addcslashes($url, '%_\\').'%';
        }

        if ($method) {
            $criteria[] = 'method = :method';
            $args[':method'] = $method;
        }

        if (!empty($start)) {
            $criteria[] = 'time >= :start';
            $args[':start'] = $start;
        }

        if (!empty($end)) {
            $criteria[] = 'time <= :end';
            $args[':end'] = $end;
        }

        return array($criteria, $args);
    }

    protected function close($db)
    {
        if ($db instanceof \SQLite3) {
            $db->close();
        }
    }
}