<?php 
 
/* 
 * This file is part of the Symfony package. 
 * 
 * (c) Fabien Potencier <[email protected]> 
 * 
 * For the full copyright and license information, please view the LICENSE 
 * file that was distributed with this source code. 
 */ 
 
namespace Symfony\Component\HttpFoundation; 
 
/** 
 * RequestMatcher compares a pre-defined set of checks against a Request instance. 
 * 
 * @author Fabien Potencier <[email protected]> 
 */ 
class RequestMatcher implements RequestMatcherInterface 
{ 
    /** 
     * @var string|null 
     */ 
    private $path; 
 
    /** 
     * @var string|null 
     */ 
    private $host; 
 
    /** 
     * @var string[] 
     */ 
    private $methods = array(); 
 
    /** 
     * @var string[] 
     */ 
    private $ips = array(); 
 
    /** 
     * @var array 
     */ 
    private $attributes = array(); 
 
    /** 
     * @var string[] 
     */ 
    private $schemes = array(); 
 
    /** 
     * @param string|null          $path 
     * @param string|null          $host 
     * @param string|string[]|null $methods 
     * @param string|string[]|null $ips 
     * @param array                $attributes 
     * @param string|string[]|null $schemes 
     */ 
    public function __construct($path = null, $host = null, $methods = null, $ips = null, array $attributes = array(), $schemes = null) 
    { 
        $this->matchPath($path); 
        $this->matchHost($host); 
        $this->matchMethod($methods); 
        $this->matchIps($ips); 
        $this->matchScheme($schemes); 
 
        foreach ($attributes as $k => $v) { 
            $this->matchAttribute($k, $v); 
        } 
    } 
 
    /** 
     * Adds a check for the HTTP scheme. 
     * 
     * @param string|string[]|null $scheme An HTTP scheme or an array of HTTP schemes 
     */ 
    public function matchScheme($scheme) 
    { 
        $this->schemes = null !== $scheme ? array_map('strtolower', (array) $scheme) : array(); 
    } 
 
    /** 
     * Adds a check for the URL host name. 
     * 
     * @param string|null $regexp A Regexp 
     */ 
    public function matchHost($regexp) 
    { 
        $this->host = $regexp; 
    } 
 
    /** 
     * Adds a check for the URL path info. 
     * 
     * @param string|null $regexp A Regexp 
     */ 
    public function matchPath($regexp) 
    { 
        $this->path = $regexp; 
    } 
 
    /** 
     * Adds a check for the client IP. 
     * 
     * @param string $ip A specific IP address or a range specified using IP/netmask like 192.168.1.0/24 
     */ 
    public function matchIp($ip) 
    { 
        $this->matchIps($ip); 
    } 
 
    /** 
     * Adds a check for the client IP. 
     * 
     * @param string|string[]|null $ips A specific IP address or a range specified using IP/netmask like 192.168.1.0/24 
     */ 
    public function matchIps($ips) 
    { 
        $this->ips = null !== $ips ? (array) $ips : array(); 
    } 
 
    /** 
     * Adds a check for the HTTP method. 
     * 
     * @param string|string[]|null $method An HTTP method or an array of HTTP methods 
     */ 
    public function matchMethod($method) 
    { 
        $this->methods = null !== $method ? array_map('strtoupper', (array) $method) : array(); 
    } 
 
    /** 
     * Adds a check for request attribute. 
     * 
     * @param string $key    The request attribute name 
     * @param string $regexp A Regexp 
     */ 
    public function matchAttribute($key, $regexp) 
    { 
        $this->attributes[$key] = $regexp; 
    } 
 
    /** 
     * {@inheritdoc} 
     */ 
    public function matches(Request $request) 
    { 
        if ($this->schemes && !in_array($request->getScheme(), $this->schemes, true)) { 
            return false; 
        } 
 
        if ($this->methods && !in_array($request->getMethod(), $this->methods, true)) { 
            return false; 
        } 
 
        foreach ($this->attributes as $key => $pattern) { 
            if (!preg_match('{'.$pattern.'}', $request->attributes->get($key))) { 
                return false; 
            } 
        } 
 
        if (null !== $this->path && !preg_match('{'.$this->path.'}', rawurldecode($request->getPathInfo()))) { 
            return false; 
        } 
 
        if (null !== $this->host && !preg_match('{'.$this->host.'}i', $request->getHost())) { 
            return false; 
        } 
 
        if (IpUtils::checkIp($request->getClientIp(), $this->ips)) { 
            return true; 
        } 
 
        // Note to future implementors: add additional checks above the 
        // foreach above or else your check might not be run! 
        return count($this->ips) === 0; 
    } 
} 
 
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