From 0f6e5bc4d356680bae470f05ccb9e115dd57422e Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@devilix.net>
Date: Mon, 16 Nov 2015 16:17:07 +0200
Subject: [ci skip] Polish changes from PR #4240

---
 .../Session/drivers/Session_redis_driver.php       | 71 ++++++++++------------
 1 file changed, 33 insertions(+), 38 deletions(-)

(limited to 'system/libraries')

diff --git a/system/libraries/Session/drivers/Session_redis_driver.php b/system/libraries/Session/drivers/Session_redis_driver.php
index 8f9bcce24..4fa6c28b3 100644
--- a/system/libraries/Session/drivers/Session_redis_driver.php
+++ b/system/libraries/Session/drivers/Session_redis_driver.php
@@ -85,41 +85,39 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle
 		{
 			log_message('error', 'Session: No Redis save path configured.');
 		}
-		elseif (preg_match('#^unix://([^\?]+)(\?.+)?$#', $this->_config['save_path'], $matches))
+		elseif (preg_match('#^unix://([^\?]+)(?<options>\?.+)?$#', $this->_config['save_path'], $matches))
 		{
-			isset($matches[2]) OR $matches[2] = ''; // Just to avoid undefined index notices below
-			$this->_config['save_path'] = array(
-					'type' => 'unix',
-					'path' => $matches[1],
-					'password' => preg_match('#auth=([^\s&]+)#', $matches[2], $match) ? $match[1] : NULL,
-					'database' => preg_match('#database=(\d+)#', $matches[2], $match) ? (int) $match[1] : NULL,
-					'timeout' => preg_match('#timeout=(\d+\.\d+)#', $matches[2], $match) ? (float) $match[1] : NULL
-			);
-
-			preg_match('#prefix=([^\s&]+)#', $matches[2], $match) && $this->_key_prefix = $match[1];
+			$save_path = array('path' => $matches[1]);
 		}
-		elseif (preg_match('#(?:tcp://)?([^:?]+)(?:\:(\d+))?(\?.+)?#', $this->_config['save_path'], $matches))
+		elseif (preg_match('#(?:tcp://)?([^:?]+)(?:\:(\d+))?(?<options>\?.+)?#', $this->_config['save_path'], $matches))
 		{
-			isset($matches[3]) OR $matches[3] = ''; // Just to avoid undefined index notices below
-			$this->_config['save_path'] = array(
-				'type' => 'tcp',
+			$save_path = array(
 				'host' => $matches[1],
-				'port' => empty($matches[2]) ? NULL : $matches[2],
-				'password' => preg_match('#auth=([^\s&]+)#', $matches[3], $match) ? $match[1] : NULL,
-				'database' => preg_match('#database=(\d+)#', $matches[3], $match) ? (int) $match[1] : NULL,
-				'timeout' => preg_match('#timeout=(\d+\.\d+)#', $matches[3], $match) ? (float) $match[1] : NULL
+				'port' => empty($matches[2]) ? NULL : $matches[2]
 			);
-
-			preg_match('#prefix=([^\s&]+)#', $matches[3], $match) && $this->_key_prefix = $match[1];
 		}
 		else
 		{
 			log_message('error', 'Session: Invalid Redis save path format: '.$this->_config['save_path']);
 		}
 
-		if ($this->_config['match_ip'] === TRUE)
+		if (isset($save_path))
 		{
-			$this->_key_prefix .= $_SERVER['REMOTE_ADDR'].':';
+			if (isset($matches['options']))
+			{
+				$save_path['password'] = preg_match('#auth=([^\s&]+)#', $matches['options'], $match) ? $match[1] : NULL;
+				$save_path['database'] = preg_match('#database=(\d+)#', $matches['options'], $match) ? (int) $match[1] : NULL;
+				$save_path['timeout']  = preg_match('#timeout=(\d+\.\d+)#', $matches['options'], $match) ? (float) $match[1] : NULL;
+
+				preg_match('#prefix=([^\s&]+)#', $matches['options'], $match) && $this->_key_prefix = $match[1];
+			}
+
+			$this->_config['save_path'] = $save_path;
+
+			if ($this->_config['match_ip'] === TRUE)
+			{
+				$this->_key_prefix .= $_SERVER['REMOTE_ADDR'].':';
+			}
 		}
 	}
 
@@ -141,23 +139,16 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle
 			return FALSE;
 		}
 
-		$connected = TRUE;
 		$redis = new Redis();
-		if ($this->_config['save_path']['type'] == 'unix')
-		{
-			if ( ! $redis->connect($this->_config['save_path']['path']))
-			{
-				log_message('error', 'Session: Unable to connect to Redis with the configured settings.');
-				$connected = FALSE;
-			}
-		}
-		elseif ( ! $redis->connect($this->_config['save_path']['host'], $this->_config['save_path']['port'], $this->_config['save_path']['timeout']))
-		{
-			log_message('error', 'Session: Unable to connect to Redis with the configured settings.');
-			$connected = FALSE;
-		}
+		$connected = isset($this->_config['save_path']['path'])
+			? $redis->connect($this->_config['save_path']['path'])
+			: $redis->connect(
+				$this->_config['save_path']['host'],
+				$this->_config['save_path']['port'],
+				$this->_config['save_path']['timeout']
+			);
 
-		if ($connected) 
+		if ($connected)
 		{
 			if (isset($this->_config['save_path']['password']) && ! $redis->auth($this->_config['save_path']['password']))
 			{
@@ -173,6 +164,10 @@ class CI_Session_redis_driver extends CI_Session_driver implements SessionHandle
 				return TRUE;
 			}
 		}
+		else
+		{
+			log_message('error', 'Session: Unable to connect to Redis with the configured settings.');
+		}
 
 		return FALSE;
 	}
-- 
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