<?php
+
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
-// available at http://getid3.sourceforge.net //
-// or http://www.getid3.org //
-// also https://github.com/JamesHeinrich/getID3 //
-/////////////////////////////////////////////////////////////////
+// available at https://github.com/JamesHeinrich/getID3 //
+// or https://www.getid3.org //
+// or http://getid3.sourceforge.net //
// //
-// extension.cache.mysqli.php - part of getID3() //
+// extension.cache.mysqli.php - part of getID3() //
// Please see readme.txt for more information //
-// ///
+// //
/////////////////////////////////////////////////////////////////
// //
// This extension written by Allan Hansen <ahØartemis*dk> //
class getID3_cached_mysqli extends getID3
{
- // private vars
+ /**
+ * @var mysqli
+ */
private $mysqli;
+
+ /**
+ * @var mysqli_result
+ */
private $cursor;
+ /**
+ * @var string
+ */
+ private $table;
- // public: constructor - see top of this file for cache type and cache_options
+ /**
+ * @var bool
+ */
+ private $db_structure_check;
+
+
+ /**
+ * constructor - see top of this file for cache type and cache_options
+ *
+ * @param string $host
+ * @param string $database
+ * @param string $username
+ * @param string $password
+ * @param string $table
+ *
+ * @throws Exception
+ * @throws getid3_exception
+ */
public function __construct($host, $database, $username, $password, $table='getid3_cache') {
// Check for mysqli support
// Connect to database
$this->mysqli = new mysqli($host, $username, $password);
- if (!$this->mysqli) {
- throw new Exception('mysqli_connect() failed - check permissions and spelling.');
+ if ($this->mysqli->connect_error) {
+ throw new Exception('Connect Error (' . $this->mysqli->connect_errno . ') ' . $this->mysqli->connect_error);
}
// Select database
// Create cache table if not exists
$this->create_table();
+ $this->db_structure_check = true; // set to false if you know your table structure has already been migrated to use `hash` as the primary key to avoid
+ $this->migrate_db_structure();
+
// Check version number and clear cache if changed
$version = '';
$SQLquery = 'SELECT `value`';
$SQLquery .= ' FROM `'.$this->mysqli->real_escape_string($this->table).'`';
$SQLquery .= ' WHERE (`filename` = \''.$this->mysqli->real_escape_string(getID3::VERSION).'\')';
- $SQLquery .= ' AND (`filesize` = -1)';
- $SQLquery .= ' AND (`filetime` = -1)';
- $SQLquery .= ' AND (`analyzetime` = -1)';
+ $SQLquery .= ' AND (`hash` = \'getID3::VERSION\')';
if ($this->cursor = $this->mysqli->query($SQLquery)) {
list($version) = $this->cursor->fetch_array();
}
}
- // public: clear cache
+ /**
+ * clear cache
+ */
public function clear_cache() {
- $this->mysqli->query('DELETE FROM `'.$this->mysqli->real_escape_string($this->table).'`');
- $this->mysqli->query('INSERT INTO `'.$this->mysqli->real_escape_string($this->table).'` (`filename`, `filesize`, `filetime`, `analyzetime`, `value`) VALUES (\''.getID3::VERSION.'\', -1, -1, -1, \''.getID3::VERSION.'\')');
+ $this->mysqli->query('TRUNCATE TABLE `'.$this->mysqli->real_escape_string($this->table).'`');
+ $this->mysqli->query('INSERT INTO `'.$this->mysqli->real_escape_string($this->table).'` (`hash`, `filename`, `filesize`, `filetime`, `analyzetime`, `value`) VALUES (\'getID3::VERSION\', \''.getID3::VERSION.'\', -1, -1, -1, \''.getID3::VERSION.'\')');
+ }
+
+
+ /**
+ * migrate database structure if needed
+ */
+ public function migrate_db_structure() {
+ // Check for table structure
+ if ($this->db_structure_check) {
+ $SQLquery = 'SHOW COLUMNS';
+ $SQLquery .= ' FROM `'.$this->mysqli->real_escape_string($this->table).'`';
+ $SQLquery .= ' LIKE \'hash\'';
+ $this->cursor = $this->mysqli->query($SQLquery);
+ if ($this->cursor->num_rows == 0) {
+ // table has not been migrated, add column, add hashes, change index
+ $SQLquery = 'ALTER TABLE `getid3_cache` DROP PRIMARY KEY, ADD `hash` CHAR(32) NOT NULL DEFAULT \'\' FIRST, ADD PRIMARY KEY(`hash`)';
+ $this->mysqli->query($SQLquery);
+
+ $SQLquery = 'UPDATE `getid3_cache` SET';
+ $SQLquery .= ' `hash` = MD5(`filename`, `filesize`, `filetime`)';
+ $SQLquery .= ' WHERE (`filesize` > -1)';
+ $this->mysqli->query($SQLquery);
+
+ $SQLquery = 'UPDATE `getid3_cache` SET';
+ $SQLquery .= ' `hash` = \'getID3::VERSION\'';
+ $SQLquery .= ' WHERE (`filesize` = -1)';
+ $SQLquery .= ' AND (`filetime` = -1)';
+ $SQLquery .= ' AND (`filetime` = -1)';
+ $this->mysqli->query($SQLquery);
+ }
+ }
}
- // public: analyze file
- public function analyze($filename, $filesize=null, $original_filename='') {
+ /**
+ * analyze file
+ *
+ * @param string $filename
+ * @param int $filesize
+ * @param string $original_filename
+ * @param resource $fp
+ *
+ * @return mixed
+ */
+ public function analyze($filename, $filesize=null, $original_filename='', $fp=null) {
+ $filetime = 0;
if (file_exists($filename)) {
// Short-hands
// Lookup file
$SQLquery = 'SELECT `value`';
$SQLquery .= ' FROM `'.$this->mysqli->real_escape_string($this->table).'`';
- $SQLquery .= ' WHERE (`filename` = \''.$this->mysqli->real_escape_string($filename).'\')';
- $SQLquery .= ' AND (`filesize` = \''.$this->mysqli->real_escape_string($filesize).'\')';
- $SQLquery .= ' AND (`filetime` = \''.$this->mysqli->real_escape_string($filetime).'\')';
+ $SQLquery .= ' WHERE (`hash` = \''.$this->mysqli->real_escape_string(md5($filename.$filesize.$filetime)).'\')';
$this->cursor = $this->mysqli->query($SQLquery);
if ($this->cursor->num_rows > 0) {
// Hit
}
// Miss
- $analysis = parent::analyze($filename, $filesize, $original_filename);
+ $analysis = parent::analyze($filename, $filesize, $original_filename, $fp);
// Save result
if (file_exists($filename)) {
- $SQLquery = 'INSERT INTO `'.$this->mysqli->real_escape_string($this->table).'` (`filename`, `filesize`, `filetime`, `analyzetime`, `value`) VALUES (';
- $SQLquery .= '\''.$this->mysqli->real_escape_string($filename).'\'';
+ $SQLquery = 'INSERT INTO `'.$this->mysqli->real_escape_string($this->table).'` (`hash`, `filename`, `filesize`, `filetime`, `analyzetime`, `value`) VALUES (';
+ $SQLquery .= '\''.$this->mysqli->real_escape_string(md5($filename.$filesize.$filetime)).'\'';
+ $SQLquery .= ', \''.$this->mysqli->real_escape_string($filename).'\'';
$SQLquery .= ', \''.$this->mysqli->real_escape_string($filesize).'\'';
$SQLquery .= ', \''.$this->mysqli->real_escape_string($filetime).'\'';
- $SQLquery .= ', \''.$this->mysqli->real_escape_string(time() ).'\'';
- $SQLquery .= ', \''.$this->mysqli->real_escape_string(base64_encode(serialize($analysis))).'\')';
+ $SQLquery .= ', UNIX_TIMESTAMP()';
+ $SQLquery .= ', \''.$this->mysqli->real_escape_string(base64_encode(serialize($analysis))).'\'';
+ $SQLquery .= ')';
$this->cursor = $this->mysqli->query($SQLquery);
}
return $analysis;
}
- // private: (re)create mysqli table
+ /**
+ * (re)create mysqli table
+ *
+ * @param bool $drop
+ */
private function create_table($drop=false) {
+ if ($drop) {
+ $SQLquery = 'DROP TABLE IF EXISTS `'.$this->mysqli->real_escape_string($this->table).'`';
+ $this->mysqli->query($SQLquery);
+ }
$SQLquery = 'CREATE TABLE IF NOT EXISTS `'.$this->mysqli->real_escape_string($this->table).'` (';
- $SQLquery .= '`filename` VARCHAR(990) NOT NULL DEFAULT \'\'';
+ $SQLquery .= '`hash` CHAR(32) NOT NULL DEFAULT \'\'';
+ $SQLquery .= ', `filename` VARCHAR(1000) NOT NULL DEFAULT \'\'';
$SQLquery .= ', `filesize` INT(11) NOT NULL DEFAULT \'0\'';
$SQLquery .= ', `filetime` INT(11) NOT NULL DEFAULT \'0\'';
$SQLquery .= ', `analyzetime` INT(11) NOT NULL DEFAULT \'0\'';
$SQLquery .= ', `value` LONGTEXT NOT NULL';
- $SQLquery .= ', PRIMARY KEY (`filename`, `filesize`, `filetime`)) ENGINE=MyISAM CHARACTER SET=latin1 COLLATE=latin1_general_ci';
+ $SQLquery .= ', PRIMARY KEY (`hash`))';
$this->cursor = $this->mysqli->query($SQLquery);
echo $this->mysqli->error;
}
-}
\ No newline at end of file
+}
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