diff options
Diffstat (limited to 'system/libraries/Session/drivers')
4 files changed, 121 insertions, 78 deletions
diff --git a/system/libraries/Session/drivers/Session_database_driver.php b/system/libraries/Session/drivers/Session_database_driver.php index 734fe624f..89afe3455 100644 --- a/system/libraries/Session/drivers/Session_database_driver.php +++ b/system/libraries/Session/drivers/Session_database_driver.php @@ -130,7 +130,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan { if (empty($this->_db->conn_id) && ! $this->_db->db_connect()) { - return $this->_fail(); + return $this->_failure; } $this->php5_validate_id(); @@ -150,48 +150,47 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan */ public function read($session_id) { - if ($this->_get_lock($session_id) !== FALSE) + if ($this->_get_lock($session_id) === FALSE) { - // Prevent previous QB calls from messing with our queries - $this->_db->reset_query(); - - // Needed by write() to detect session_regenerate_id() calls - $this->_session_id = $session_id; + return $this->_failure; + } - $this->_db - ->select('data') - ->from($this->_config['save_path']) - ->where('id', $session_id); + // Prevent previous QB calls from messing with our queries + $this->_db->reset_query(); - if ($this->_config['match_ip']) - { - $this->_db->where('ip_address', $_SERVER['REMOTE_ADDR']); - } + // Needed by write() to detect session_regenerate_id() calls + $this->_session_id = $session_id; - if ( ! ($result = $this->_db->get()) OR ($result = $result->row()) === NULL) - { - // PHP7 will reuse the same SessionHandler object after - // ID regeneration, so we need to explicitly set this to - // FALSE instead of relying on the default ... - $this->_row_exists = FALSE; - $this->_fingerprint = md5(''); - return ''; - } + $this->_db + ->select('data') + ->from($this->_config['save_path']) + ->where('id', $session_id); - // PostgreSQL's variant of a BLOB datatype is Bytea, which is a - // PITA to work with, so we use base64-encoded data in a TEXT - // field instead. - $result = ($this->_platform === 'postgre') - ? base64_decode(rtrim($result->data)) - : $result->data; + if ($this->_config['match_ip']) + { + $this->_db->where('ip_address', $_SERVER['REMOTE_ADDR']); + } - $this->_fingerprint = md5($result); - $this->_row_exists = TRUE; - return $result; + if ( ! ($result = $this->_db->get()) OR ($result = $result->row()) === NULL) + { + // PHP7 will reuse the same SessionHandler object after + // ID regeneration, so we need to explicitly set this to + // FALSE instead of relying on the default ... + $this->_row_exists = FALSE; + $this->_fingerprint = md5(''); + return ''; } - $this->_fingerprint = md5(''); - return ''; + // PostgreSQL's variant of a BLOB datatype is Bytea, which is a + // PITA to work with, so we use base64-encoded data in a TEXT + // field instead. + $result = ($this->_platform === 'postgre') + ? base64_decode(rtrim($result->data)) + : $result->data; + + $this->_fingerprint = md5($result); + $this->_row_exists = TRUE; + return $result; } // ------------------------------------------------------------------------ @@ -215,7 +214,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan { if ( ! $this->_release_lock() OR ! $this->_get_lock($session_id)) { - return $this->_fail(); + return $this->_failure; } $this->_row_exists = FALSE; @@ -223,7 +222,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan } elseif ($this->_lock === FALSE) { - return $this->_fail(); + return $this->_failure; } if ($this->_row_exists === FALSE) @@ -242,7 +241,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan return $this->_success; } - return $this->_fail(); + return $this->_failure; } $this->_db->where('id', $session_id); @@ -265,7 +264,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan return $this->_success; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -280,7 +279,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan public function close() { return ($this->_lock && ! $this->_release_lock()) - ? $this->_fail() + ? $this->_failure : $this->_success; } @@ -309,7 +308,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan if ( ! $this->_db->delete($this->_config['save_path'])) { - return $this->_fail(); + return $this->_failure; } } @@ -319,7 +318,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan return $this->_success; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -339,7 +338,7 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan return ($this->_db->delete($this->_config['save_path'], 'timestamp < '.(time() - $maxlifetime))) ? $this->_success - : $this->_fail(); + : $this->_failure; } // -------------------------------------------------------------------- diff --git a/system/libraries/Session/drivers/Session_files_driver.php b/system/libraries/Session/drivers/Session_files_driver.php index 467059434..2899b7dec 100644 --- a/system/libraries/Session/drivers/Session_files_driver.php +++ b/system/libraries/Session/drivers/Session_files_driver.php @@ -135,12 +135,14 @@ class CI_Session_files_driver extends CI_Session_driver implements SessionHandle { if ( ! mkdir($save_path, 0700, TRUE)) { - throw new Exception("Session: Configured save path '".$this->_config['save_path']."' is not a directory, doesn't exist or cannot be created."); + log_message('error', "Session: Configured save path '".$this->_config['save_path']."' is not a directory, doesn't exist or cannot be created."); + return $this->_failure; } } elseif ( ! is_writable($save_path)) { - throw new Exception("Session: Configured save path '".$this->_config['save_path']."' is not writable by the PHP process."); + log_message('error', "Session: Configured save path '".$this->_config['save_path']."' is not writable by the PHP process."); + return $this->_failure; } $this->_config['save_path'] = $save_path; diff --git a/system/libraries/Session/drivers/Session_memcached_driver.php b/system/libraries/Session/drivers/Session_memcached_driver.php index ab54f029f..854adf821 100644 --- a/system/libraries/Session/drivers/Session_memcached_driver.php +++ b/system/libraries/Session/drivers/Session_memcached_driver.php @@ -117,7 +117,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa { $this->_memcached = NULL; log_message('error', 'Session: Invalid Memcached save path format: '.$this->_config['save_path']); - return $this->_fail(); + return $this->_failure; } foreach ($matches as $match) @@ -142,7 +142,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa if (empty($server_list)) { log_message('error', 'Session: Memcached server pool is empty.'); - return $this->_fail(); + return $this->_failure; } $this->php5_validate_id(); @@ -172,7 +172,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa return $session_data; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -190,14 +190,14 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa { if ( ! isset($this->_memcached, $this->_lock_key)) { - return $this->_fail(); + return $this->_failure; } // Was the ID regenerated? elseif ($session_id !== $this->_session_id) { if ( ! $this->_release_lock() OR ! $this->_get_lock($session_id)) { - return $this->_fail(); + return $this->_failure; } $this->_fingerprint = md5(''); @@ -215,7 +215,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa return $this->_success; } - return $this->_fail(); + return $this->_failure; } elseif ( $this->_memcached->touch($key, $this->_config['expiration']) @@ -225,7 +225,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa return $this->_success; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -244,14 +244,14 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa $this->_release_lock(); if ( ! $this->_memcached->quit()) { - return $this->_fail(); + return $this->_failure; } $this->_memcached = NULL; return $this->_success; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -273,7 +273,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa return $this->_success; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ diff --git a/system/libraries/Session/drivers/Session_redis_driver.php b/system/libraries/Session/drivers/Session_redis_driver.php index 434b11e58..df38174b4 100644 --- a/system/libraries/Session/drivers/Session_redis_driver.php +++ b/system/libraries/Session/drivers/Session_redis_driver.php @@ -76,6 +76,33 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle */ protected $_key_exists = FALSE; + /** + * Name of setTimeout() method in phpRedis + * + * Due to some deprecated methods in phpRedis, we need to call the + * specific methods depending on the version of phpRedis. + * + * @var string + */ + protected $_setTimeout_name; + + /** + * Name of delete() method in phpRedis + * + * Due to some deprecated methods in phpRedis, we need to call the + * specific methods depending on the version of phpRedis. + * + * @var string + */ + protected $_delete_name; + + /** + * Success return value of ping() method in phpRedis + * + * @var mixed + */ + protected $_ping_success; + // ------------------------------------------------------------------------ /** @@ -88,6 +115,20 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle { parent::__construct($params); + // Detect the names of some methods in phpRedis instance + if (version_compare(phpversion('redis'), '5', '>=')) + { + $this->_setTimeout_name = 'expire'; + $this->_delete_name = 'del'; + $this->_ping_success = TRUE; + } + else + { + $this->_setTimeout_name = 'setTimeout'; + $this->_delete_name = 'delete'; + $this->_ping_success = '+PONG'; + } + if (empty($this->_config['save_path'])) { log_message('error', 'Session: No Redis save path configured.'); @@ -131,7 +172,7 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle { if (empty($this->_config['save_path'])) { - return $this->_fail(); + return $this->_failure; } $redis = new Redis(); @@ -150,12 +191,11 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle else { $this->_redis = $redis; + $this->php5_validate_id(); return $this->_success; } - $this->php5_validate_id(); - - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -185,7 +225,7 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle return $session_data; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -203,21 +243,21 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle { if ( ! isset($this->_redis, $this->_lock_key)) { - return $this->_fail(); + return $this->_failure; } // Was the ID regenerated? elseif ($session_id !== $this->_session_id) { if ( ! $this->_release_lock() OR ! $this->_get_lock($session_id)) { - return $this->_fail(); + return $this->_failure; } $this->_key_exists = FALSE; $this->_session_id = $session_id; } - $this->_redis->setTimeout($this->_lock_key, 300); + $this->_redis->{$this->_setTimeout_name}($this->_lock_key, 300); if ($this->_fingerprint !== ($fingerprint = md5($session_data)) OR $this->_key_exists === FALSE) { if ($this->_redis->set($this->_key_prefix.$session_id, $session_data, $this->_config['expiration'])) @@ -227,12 +267,12 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle return $this->_success; } - return $this->_fail(); + return $this->_failure; } - return ($this->_redis->setTimeout($this->_key_prefix.$session_id, $this->_config['expiration'])) + return ($this->_redis->{$this->_setTimeout_name}($this->_key_prefix.$session_id, $this->_config['expiration'])) ? $this->_success - : $this->_fail(); + : $this->_failure; } // ------------------------------------------------------------------------ @@ -249,12 +289,12 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle if (isset($this->_redis)) { try { - if ($this->_redis->ping() === '+PONG') + if ($this->_redis->ping() === $this->_ping_success) { $this->_release_lock(); if ($this->_redis->close() === FALSE) { - return $this->_fail(); + return $this->_failure; } } } @@ -284,16 +324,16 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle { if (isset($this->_redis, $this->_lock_key)) { - if (($result = $this->_redis->delete($this->_key_prefix.$session_id)) !== 1) + if (($result = $this->_redis->{$this->_delete_name}($this->_key_prefix.$session_id)) !== 1) { - log_message('debug', 'Session: Redis::delete() expected to return 1, got '.var_export($result, TRUE).' instead.'); + log_message('debug', 'Session: Redis::'.$this->_delete_name.'() expected to return 1, got '.var_export($result, TRUE).' instead.'); } $this->_cookie_destroy(); return $this->_success; } - return $this->_fail(); + return $this->_failure; } // ------------------------------------------------------------------------ @@ -345,7 +385,7 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle // correct session ID. if ($this->_lock_key === $this->_key_prefix.$session_id.':lock') { - return $this->_redis->setTimeout($this->_lock_key, 300); + return $this->_redis->{$this->_setTimeout_name}($this->_lock_key, 300); } // 30 attempts to obtain a lock, in case another request already has it @@ -359,11 +399,13 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle continue; } - $result = ($ttl === -2) - ? $this->_redis->set($lock_key, time(), array('nx', 'ex' => 300)) - : $this->_redis->setex($lock_key, 300, time()); - - if ( ! $result) + if ($ttl === -2 && ! $this->_redis->set($lock_key, time(), array('nx', 'ex' => 300))) + { + // Sleep for 1s to wait for lock releases. + sleep(1); + continue; + } + elseif ( ! $this->_redis->setex($lock_key, 300, time())) { log_message('error', 'Session: Error while trying to obtain lock for '.$this->_key_prefix.$session_id); return FALSE; @@ -401,7 +443,7 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle { if (isset($this->_redis, $this->_lock_key) && $this->_lock) { - if ( ! $this->_redis->delete($this->_lock_key)) + if ( ! $this->_redis->{$this->_delete_name}($this->_lock_key)) { log_message('error', 'Session: Error while trying to free lock for '.$this->_lock_key); return FALSE; |