refactoring and working on redis.

laravel/bootstrap/constants.php

@@ -1,16 +1,13 @@
 <?php
 
-/**
- * Define the extensions used by the framework.
- */
-define('EXT',       '.php');
 define('BLADE_EXT', '.blade.php');
+define('CRLF', chr(13).chr(10));
+define('EXT', '.php');
 
 /**
- * Define a function that registers an array of constants
- * if they haven't already been registered. This allows the
- * constants to be changed from their default values when
- * unit testing the framework.
+ * Define a function that registers an array of constants if they
+ * haven't already been registered. This allows the constants to
+ * be changed from their default values when unit testing.
  */
 function constants($constants)
 {
@@ -21,9 +18,9 @@ function constants($constants)
 }
 
 /**
- * Register the core framework paths. All other paths are
- * built on top of these core paths. All of these paths are
- * changable by the developer in the front controller.
+ * Register the core framework paths. All other paths are built on
+ * top of these core paths. All of these paths are changable by
+ * the developer in the front controller.
  */
 $constants = array(
 	'APP_PATH'     => realpath($application).'/',
@@ -37,8 +34,9 @@ $constants = array(
 constants($constants);
 
 /**
- * Register all of the other framework paths. All of these
- * paths are built on top of the core paths above.
+ * Register all of the other framework paths. All of these paths
+ * are built on top of the core paths above. We still allow the
+ * developer to override these for easy unit testing.
  */
 $constants = array(
 	'CACHE_PATH'      => STORAGE_PATH.'cache/',
@@ -63,7 +61,7 @@ unset($constants);
 
 /**
  * Set the Laravel environment configuration path constant.
- * The environment is controller by setting an environment
+ * The environment is controlled by setting an environment
  * variable on the server running Laravel.
  */
 $environment = (isset($_SERVER['LARAVEL_ENV'])) ? $_SERVER['LARAVEL_ENV'] : '';

laravel/bootstrap/errors.php

@@ -59,20 +59,31 @@ $handler = function($e) use ($message, $severity)
 };
 
 /**
- * Register the PHP exception, error, and shutdown error handlers.
- * These handlers will catch all PHP exceptions and errors and pass
- * the exceptions into the common Laravel error handler.
+ * Register the PHP exception handler. The framework throws exceptions
+ * on every error that cannot be handled. All of those exceptions will
+ * fall into this closure for processing.
  */
 set_exception_handler(function($e) use ($handler)
 {
 	$handler($e); 
 });
 
+/**
+ * Register the PHP error handler. All PHP errors will fall into this
+ * handler, which will convert the error into an ErrorException object
+ * and pass the exception into the common exception handler.
+ */
 set_error_handler(function($number, $error, $file, $line) use ($handler)
 {
 	$handler(new \ErrorException($error, $number, 0, $file, $line));
 });
 
+/**
+ * Register the PHP shutdown handler. This function will be called at
+ * the end of the PHP script or on a fatal PHP error. If an error has
+ * occurred, we will convert it to an ErrorException and pass it to
+ * the common exception handler.
+ */
 register_shutdown_function(function() use ($handler)
 {
 	if ( ! is_null($error = error_get_last()))

laravel/cache/drivers/memcached.php

@@ -1,4 +1,4 @@
-<?php namespace Laravel\Cache\Drivers; use Memcache, Laravel\Config;
+<?php namespace Laravel\Cache\Drivers; use Memcache;
 
 class Memcached extends Driver {
 

laravel/database/grammars/grammar.php

@@ -22,7 +22,16 @@ class Grammar {
 	 *
 	 * @var array
 	 */
-	protected $components = array('aggregate', 'selects', 'from', 'joins', 'wheres', 'orderings', 'limit', 'offset');
+	protected $components = array(
+		'aggregate',
+		'selects',
+		'from',
+		'joins',
+		'wheres',
+		'orderings',
+		'limit',
+		'offset'
+	);
 
 	/**
 	 * Compile a SQL SELECT statement from a Query instance.
@@ -272,9 +281,12 @@ class Grammar {
 		// every insert to the table.
 		$columns = $this->columnize(array_keys(reset($values)));
 
-		// We need to create a string of comma-delimited insert segments. Each segment
-		// contains PDO place-holders for each value being inserted into the table.
-		$parameters = implode(', ', array_fill(0, count($values), '('.$this->parameterize(reset($values)).')'));
+		// Build the list of parameter place-holders for the array of values bound
+		// to the query. Each insert statement should have the same number of bound
+		// parameters, so we can just use the first array of values.
+		$parameters = $this->parameterize(reset($values));
+
+		$parameters = implode(', ', array_fill(0, count($values), '('.$parameters.')'));
 
 		return 'INSERT INTO '.$this->wrap($query->from).' ('.$columns.') VALUES '.$parameters;
 	}

laravel/database/manager.php

@@ -40,7 +40,7 @@ class Manager {
 
 			if (is_null($config))
 			{
-				throw new \Exception("Database connection configuration is not defined for connection [$connection].");
+				throw new \Exception("Database connection is not defined for connection [$connection].");
 			}
 
 			static::$connections[$connection] = new Connection(static::connect($config), $config);

laravel/redis.php

@@ -0,0 +1,155 @@
+<?php namespace Laravel;
+
+class Redis {
+
+	/**
+	 * The active Redis connections.
+	 *
+	 * @var array
+	 */
+	protected static $connections = array();
+
+	/**
+	 * The name of the Redis connection.
+	 *
+	 * @var string
+	 */
+	public $name;
+
+	/**
+	 * The configuration array for the Redis connection.
+	 *
+	 * @var array
+	 */
+	public $config = array();
+
+	/**
+	 * The connection to the Redis database.
+	 *
+	 * @var resource
+	 */
+	protected $connection;
+
+	/**
+	 * Create a new Redis connection instance.
+	 *
+	 * @param  string  $name
+	 * @param  array   $config
+	 * @return void
+	 */
+	public function __construct($name, $config)
+	{
+		$this->name = $name;
+		$this->config = $config;
+	}
+
+	/**
+	 * Create a new Redis connection instance.
+	 *
+	 * @param  string  $connection
+	 * @param  array   $config
+	 * @return Redis
+	 */
+	public static function make($name, $config)
+	{
+		return new static($name, $config);
+	}
+
+	/**
+	 * Create a new Redis connection instance.
+	 *
+	 * Redis connections are managed as singletons, so if the connection has
+	 * already been established, that same connection instance will be returned
+	 * on subsequent requests for the connection.
+	 *
+	 * @param  string  $connection
+	 * @return Redis
+	 */
+	public static function connection($name)
+	{
+		if ( ! array_key_exists($name, static::$connections))
+		{
+			$config = Config::get("database.redis.{$name}");
+
+			if (is_null($config))
+			{
+				throw new \Exception("Redis connection [$name] has not been configured.");
+			}
+
+			static::$connections[$name] = static::make($name, $config)->connect();
+		}
+
+		return static::$connections[$name];
+	}
+
+	/**
+	 * Connect to the Redis database.
+	 *
+	 * The Redis instance itself will be returned by the method.
+	 *
+	 * @return Redis
+	 */
+	public function connect()
+	{
+		$this->connection = @fsockopen($this->config['host'], $this->config['port'], $error, $message);		
+
+		if ($this->connection === false)
+		{
+			throw new \Exception("Error establishing Redis connection [{$this->name}]: {$error} - {$message}");
+		}
+
+		return $this;
+	}
+
+	/**
+	 * Execute a command agaisnt the Redis database.
+	 *
+	 * @param  string  $method
+	 * @param  array   $parameters
+	 * @return mixed
+	 */
+	public function do($method, $parameters)
+	{
+		fwrite($this->connection, $this->command($method, $parameters));
+
+		$reply = trim(fgets($this->connection, 512));
+	}
+
+	/**
+	 * Build the Redis command based from a given method and parameters.
+	 *
+	 * @param  string  $method
+	 * @param  array   $parameters
+	 * @return string
+	 */
+	protected function command($method, $parameters)
+	{
+		$command = '*'.(count($parameters) + 1).CRLF.'$'.strlen($method).CRLF.strtoupper($method).CRLF;
+
+		foreach ($parameters as $parameter)
+		{
+			$command .= '$'.strlen($parameter).CRLF.$parameter.CRLF;
+		}
+
+		return $command;
+	}
+
+	/**
+	 * Dynamically make calls to the Redis database.
+	 */
+	public function __call($method, $parameters)
+	{
+		return $this->do($method, $parameters);
+	}
+
+	/**
+	 * Close the connection to the Redis database.
+	 *
+	 * @return void
+	 */
+	public function __destruct()
+	{
+		fclose($this->connection);
+	}
+
+}

laravel/security/crypter.php

@@ -54,52 +54,43 @@ class Crypter {
 
 		$iv = mcrypt_create_iv(static::iv_size(), $randomizer);
 
-		$key = Config::$items['application']['key'];
-
-		return base64_encode($iv.mcrypt_encrypt(static::$cipher, $key, $value, static::$mode, $iv));
+		return base64_encode($iv.mcrypt_encrypt(static::$cipher, static::key(), $value, static::$mode, $iv));
 	}
 
 	/**
 	 * Decrypt a string using Mcrypt.
 	 *
-	 * <code>
-	 *		// Decrypt a string using the Mcrypt PHP extension
-	 *		$decrypted = Crypter::decrypt($secret);
-	 * </code>
-	 *
 	 * @param  string  $value
 	 * @return string
 	 */
 	public static function decrypt($value)
 	{
-		if ( ! is_string($value = base64_decode($value, true)))
-		{
-			throw new \Exception('Decryption error. Input value is not valid base64 data.');
-		}
-
-		list($iv, $value) = static::parse($value);
-
-		$key = Config::$items['application']['key'];
+		list($iv, $value) = static::parse(base64_decode($value, true));
 
-		return rtrim(mcrypt_decrypt(static::$cipher, $key, $value, static::$mode, $iv), "\0");
+		return rtrim(mcrypt_decrypt(static::$cipher, static::key(), $value, static::$mode, $iv), "\0");
 	}
 
 	/**
 	 * Parse an encrypted value into the input vector and the actual value.
 	 *
+	 * If the given value is not valid base64 data, an exception will be thrown.
+	 *
 	 * @param  string  $value
 	 * @return array
 	 */
 	protected static function parse($value)
 	{
+		if ( ! is_string($value))
+		{
+			throw new \Exception('Decryption error. Input value is not valid base64 data.');
+		}
+
 		return array(substr($value, 0, static::iv_size()), substr($value, static::iv_size()));
 	}
 
 	/**
 	 * Get the input vector size for the cipher and mode.
 	 *
-	 * Different ciphers and modes use varying lengths of input vectors.
-	 *
 	 * @return int
 	 */
 	protected static function iv_size()
@@ -107,4 +98,14 @@ class Crypter {
 		return mcrypt_get_iv_size(static::$cipher, static::$mode);
 	}
 
+	/**
+	 * Get the encryption key from the application configuration.
+	 *
+	 * @return string
+	 */
+	protected static function key()
+	{
+		return Config::$items['application']['key'];
+	}
+
 }

laravel/session/manager.php

@@ -67,15 +67,13 @@ class Manager {
 			$session = array('id' => Str::random(40), 'data' => array());
 		}
 
+		// Now that we should have a valid session, we can set the static session
+		// property and check for session data such as the CSRF token. We will
+		// also set the static driver and transporter properties, since they
+		// will be used to close the session at the end of the request.
 		static::$session = $session;
 
-		// If a CSRF token is not present in the session, we will generate one.
-		// These tokens are generated per session to protect against Cross-Site
-		// Request Forgery attacks on the application.
-		if ( ! static::has('csrf_token'))
-		{
-			static::put('csrf_token', Str::random(16));
-		}
+		if ( ! static::has('csrf_token')) static::put('csrf_token', Str::random(16));
 
 		list(static::$driver, static::$transporter) = array($driver, $transporter);
 	}