From 90a957ad26f52e26c3979464c5ac15b1fd0fcc28 Mon Sep 17 00:00:00 2001 From: Igor Wiedler Date: Sat, 21 Jul 2012 17:43:43 +0200 Subject: [ticket/11015] Make DBAL classes autoloadable PHPBB3-11015 This allows us to just create the object without having to include the driver first. However, it also means that users must specify the full class name in config.php --- phpBB/includes/db/driver/mysqli.php | 566 ++++++++++++++++++++++++++++++++++++ 1 file changed, 566 insertions(+) create mode 100644 phpBB/includes/db/driver/mysqli.php (limited to 'phpBB/includes/db/driver/mysqli.php') diff --git a/phpBB/includes/db/driver/mysqli.php b/phpBB/includes/db/driver/mysqli.php new file mode 100644 index 0000000000..c473c7fe99 --- /dev/null +++ b/phpBB/includes/db/driver/mysqli.php @@ -0,0 +1,566 @@ +persistency = (version_compare(PHP_VERSION, '5.3.0', '>=')) ? $persistency : false; + $this->user = $sqluser; + + // If persistent connection, set dbhost to localhost when empty and prepend it with 'p:' prefix + $this->server = ($this->persistency) ? 'p:' . (($sqlserver) ? $sqlserver : 'localhost') : $sqlserver; + + $this->dbname = $database; + $port = (!$port) ? NULL : $port; + + // If port is set and it is not numeric, most likely mysqli socket is set. + // Try to map it to the $socket parameter. + $socket = NULL; + if ($port) + { + if (is_numeric($port)) + { + $port = (int) $port; + } + else + { + $socket = $port; + $port = NULL; + } + } + + $this->db_connect_id = @mysqli_connect($this->server, $this->user, $sqlpassword, $this->dbname, $port, $socket); + + if ($this->db_connect_id && $this->dbname != '') + { + @mysqli_query($this->db_connect_id, "SET NAMES 'utf8'"); + + // enforce strict mode on databases that support it + if (version_compare($this->sql_server_info(true), '5.0.2', '>=')) + { + $result = @mysqli_query($this->db_connect_id, 'SELECT @@session.sql_mode AS sql_mode'); + $row = @mysqli_fetch_assoc($result); + @mysqli_free_result($result); + + $modes = array_map('trim', explode(',', $row['sql_mode'])); + + // TRADITIONAL includes STRICT_ALL_TABLES and STRICT_TRANS_TABLES + if (!in_array('TRADITIONAL', $modes)) + { + if (!in_array('STRICT_ALL_TABLES', $modes)) + { + $modes[] = 'STRICT_ALL_TABLES'; + } + + if (!in_array('STRICT_TRANS_TABLES', $modes)) + { + $modes[] = 'STRICT_TRANS_TABLES'; + } + } + + $mode = implode(',', $modes); + @mysqli_query($this->db_connect_id, "SET SESSION sql_mode='{$mode}'"); + } + return $this->db_connect_id; + } + + return $this->sql_error(''); + } + + /** + * Version information about used database + * @param bool $use_cache If true, it is safe to retrieve the value from the cache + * @return string sql server version + */ + function sql_server_info($raw = false, $use_cache = true) + { + global $cache; + + if (!$use_cache || empty($cache) || ($this->sql_server_version = $cache->get('mysqli_version')) === false) + { + $result = @mysqli_query($this->db_connect_id, 'SELECT VERSION() AS version'); + $row = @mysqli_fetch_assoc($result); + @mysqli_free_result($result); + + $this->sql_server_version = $row['version']; + + if (!empty($cache) && $use_cache) + { + $cache->put('mysqli_version', $this->sql_server_version); + } + } + + return ($raw) ? $this->sql_server_version : 'MySQL(i) ' . $this->sql_server_version; + } + + /** + * {@inheritDoc} + */ + public function sql_concatenate($expr1, $expr2) + { + return 'CONCAT(' . $expr1 . ', ' . $expr2 . ')'; + } + + /** + * SQL Transaction + * @access private + */ + function _sql_transaction($status = 'begin') + { + switch ($status) + { + case 'begin': + return @mysqli_autocommit($this->db_connect_id, false); + break; + + case 'commit': + $result = @mysqli_commit($this->db_connect_id); + @mysqli_autocommit($this->db_connect_id, true); + return $result; + break; + + case 'rollback': + $result = @mysqli_rollback($this->db_connect_id); + @mysqli_autocommit($this->db_connect_id, true); + return $result; + break; + } + + return true; + } + + /** + * Base query method + * + * @param string $query Contains the SQL query which shall be executed + * @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache + * @return mixed When casted to bool the returned value returns true on success and false on failure + * + * @access public + */ + function sql_query($query = '', $cache_ttl = 0) + { + if ($query != '') + { + global $cache; + + // EXPLAIN only in extra debug mode + if (defined('DEBUG_EXTRA')) + { + $this->sql_report('start', $query); + } + + $this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false; + $this->sql_add_num_queries($this->query_result); + + if ($this->query_result === false) + { + if (($this->query_result = @mysqli_query($this->db_connect_id, $query)) === false) + { + $this->sql_error($query); + } + + if (defined('DEBUG_EXTRA')) + { + $this->sql_report('stop', $query); + } + + if ($cache_ttl && method_exists($cache, 'sql_save')) + { + $cache->sql_save($query, $this->query_result, $cache_ttl); + } + } + else if (defined('DEBUG_EXTRA')) + { + $this->sql_report('fromcache', $query); + } + } + else + { + return false; + } + + return $this->query_result; + } + + /** + * Build LIMIT query + */ + function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) + { + $this->query_result = false; + + // if $total is set to 0 we do not want to limit the number of rows + if ($total == 0) + { + // MySQL 4.1+ no longer supports -1 in limit queries + $total = '18446744073709551615'; + } + + $query .= "\n LIMIT " . ((!empty($offset)) ? $offset . ', ' . $total : $total); + + return $this->sql_query($query, $cache_ttl); + } + + /** + * Return number of affected rows + */ + function sql_affectedrows() + { + return ($this->db_connect_id) ? @mysqli_affected_rows($this->db_connect_id) : false; + } + + /** + * Fetch current row + */ + function sql_fetchrow($query_id = false) + { + global $cache; + + if ($query_id === false) + { + $query_id = $this->query_result; + } + + if (!is_object($query_id) && isset($cache->sql_rowset[$query_id])) + { + return $cache->sql_fetchrow($query_id); + } + + if ($query_id !== false) + { + $result = @mysqli_fetch_assoc($query_id); + return $result !== null ? $result : false; + } + + return false; + } + + /** + * Seek to given row number + * rownum is zero-based + */ + function sql_rowseek($rownum, &$query_id) + { + global $cache; + + if ($query_id === false) + { + $query_id = $this->query_result; + } + + if (!is_object($query_id) && isset($cache->sql_rowset[$query_id])) + { + return $cache->sql_rowseek($rownum, $query_id); + } + + return ($query_id !== false) ? @mysqli_data_seek($query_id, $rownum) : false; + } + + /** + * Get last inserted id after insert statement + */ + function sql_nextid() + { + return ($this->db_connect_id) ? @mysqli_insert_id($this->db_connect_id) : false; + } + + /** + * Free sql result + */ + function sql_freeresult($query_id = false) + { + global $cache; + + if ($query_id === false) + { + $query_id = $this->query_result; + } + + if (!is_object($query_id) && isset($cache->sql_rowset[$query_id])) + { + return $cache->sql_freeresult($query_id); + } + + return @mysqli_free_result($query_id); + } + + /** + * Escape string used in sql query + */ + function sql_escape($msg) + { + return @mysqli_real_escape_string($this->db_connect_id, $msg); + } + + /** + * Gets the estimated number of rows in a specified table. + * + * @param string $table_name Table name + * + * @return string Number of rows in $table_name. + * Prefixed with ~ if estimated (otherwise exact). + * + * @access public + */ + function get_estimated_row_count($table_name) + { + $table_status = $this->get_table_status($table_name); + + if (isset($table_status['Engine'])) + { + if ($table_status['Engine'] === 'MyISAM') + { + return $table_status['Rows']; + } + else if ($table_status['Engine'] === 'InnoDB' && $table_status['Rows'] > 100000) + { + return '~' . $table_status['Rows']; + } + } + + return parent::get_row_count($table_name); + } + + /** + * Gets the exact number of rows in a specified table. + * + * @param string $table_name Table name + * + * @return string Exact number of rows in $table_name. + * + * @access public + */ + function get_row_count($table_name) + { + $table_status = $this->get_table_status($table_name); + + if (isset($table_status['Engine']) && $table_status['Engine'] === 'MyISAM') + { + return $table_status['Rows']; + } + + return parent::get_row_count($table_name); + } + + /** + * Gets some information about the specified table. + * + * @param string $table_name Table name + * + * @return array + * + * @access protected + */ + function get_table_status($table_name) + { + $sql = "SHOW TABLE STATUS + LIKE '" . $this->sql_escape($table_name) . "'"; + $result = $this->sql_query($sql); + $table_status = $this->sql_fetchrow($result); + $this->sql_freeresult($result); + + return $table_status; + } + + /** + * Build LIKE expression + * @access private + */ + function _sql_like_expression($expression) + { + return $expression; + } + + /** + * Build db-specific query data + * @access private + */ + function _sql_custom_build($stage, $data) + { + switch ($stage) + { + case 'FROM': + $data = '(' . $data . ')'; + break; + } + + return $data; + } + + /** + * return sql error array + * @access private + */ + function _sql_error() + { + if (!$this->db_connect_id) + { + return array( + 'message' => @mysqli_connect_error(), + 'code' => @mysqli_connect_errno() + ); + } + + return array( + 'message' => @mysqli_error($this->db_connect_id), + 'code' => @mysqli_errno($this->db_connect_id) + ); + } + + /** + * Close sql connection + * @access private + */ + function _sql_close() + { + return @mysqli_close($this->db_connect_id); + } + + /** + * Build db-specific report + * @access private + */ + function _sql_report($mode, $query = '') + { + static $test_prof; + + // current detection method, might just switch to see the existance of INFORMATION_SCHEMA.PROFILING + if ($test_prof === null) + { + $test_prof = false; + if (strpos(mysqli_get_server_info($this->db_connect_id), 'community') !== false) + { + $ver = mysqli_get_server_version($this->db_connect_id); + if ($ver >= 50037 && $ver < 50100) + { + $test_prof = true; + } + } + } + + switch ($mode) + { + case 'start': + + $explain_query = $query; + if (preg_match('/UPDATE ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m)) + { + $explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2]; + } + else if (preg_match('/DELETE FROM ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m)) + { + $explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2]; + } + + if (preg_match('/^SELECT/', $explain_query)) + { + $html_table = false; + + // begin profiling + if ($test_prof) + { + @mysqli_query($this->db_connect_id, 'SET profiling = 1;'); + } + + if ($result = @mysqli_query($this->db_connect_id, "EXPLAIN $explain_query")) + { + while ($row = @mysqli_fetch_assoc($result)) + { + $html_table = $this->sql_report('add_select_row', $query, $html_table, $row); + } + } + @mysqli_free_result($result); + + if ($html_table) + { + $this->html_hold .= ''; + } + + if ($test_prof) + { + $html_table = false; + + // get the last profile + if ($result = @mysqli_query($this->db_connect_id, 'SHOW PROFILE ALL;')) + { + $this->html_hold .= '
'; + while ($row = @mysqli_fetch_assoc($result)) + { + // make HTML safe + if (!empty($row['Source_function'])) + { + $row['Source_function'] = str_replace(array('<', '>'), array('<', '>'), $row['Source_function']); + } + + // remove unsupported features + foreach ($row as $key => $val) + { + if ($val === null) + { + unset($row[$key]); + } + } + $html_table = $this->sql_report('add_select_row', $query, $html_table, $row); + } + } + @mysqli_free_result($result); + + if ($html_table) + { + $this->html_hold .= ''; + } + + @mysqli_query($this->db_connect_id, 'SET profiling = 0;'); + } + } + + break; + + case 'fromcache': + $endtime = explode(' ', microtime()); + $endtime = $endtime[0] + $endtime[1]; + + $result = @mysqli_query($this->db_connect_id, $query); + while ($void = @mysqli_fetch_assoc($result)) + { + // Take the time spent on parsing rows into account + } + @mysqli_free_result($result); + + $splittime = explode(' ', microtime()); + $splittime = $splittime[0] + $splittime[1]; + + $this->sql_report('record_fromcache', $query, $endtime, $splittime); + + break; + } + } +} -- cgit v1.2.1