Namespaces

  • Nette
    • Application
      • Diagnostics
      • Responses
      • Routers
      • UI
    • Caching
      • Storages
    • ComponentModel
    • Config
      • Adapters
      • Extensions
    • Database
      • Diagnostics
      • Drivers
      • Reflection
      • Table
    • DI
      • Diagnostics
    • Diagnostics
    • Forms
      • Controls
      • Rendering
    • Http
    • Iterators
    • Latte
      • Macros
    • Loaders
    • Localization
    • Mail
    • Reflection
    • Security
      • Diagnostics
    • Templating
    • Utils
      • PhpGenerator
  • NetteModule
  • None
  • PHP

Classes

  • Context
  • FileUpload
  • Request
  • RequestFactory
  • Response
  • Session
  • SessionSection
  • Url
  • UrlScript
  • UserStorage

Interfaces

  • IRequest
  • IResponse
  • ISessionStorage
  • Overview
  • Namespace
  • Class
  • Tree
  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  */
 11: 
 12: namespace Nette\Http;
 13: 
 14: use Nette;
 15: 
 16: 
 17: 
 18: /**
 19:  * HTTP-specific tasks.
 20:  *
 21:  * @author     David Grudl
 22:  *
 23:  * @property-read bool $modified
 24:  * @property-read IRequest $request
 25:  * @property-read IResponse $response
 26:  */
 27: class Context extends Nette\Object
 28: {
 29:     /** @var IRequest */
 30:     private $request;
 31: 
 32:     /** @var IResponse */
 33:     private $response;
 34: 
 35: 
 36: 
 37:     public function __construct(IRequest $request, IResponse $response)
 38:     {
 39:         $this->request = $request;
 40:         $this->response = $response;
 41:     }
 42: 
 43: 
 44: 
 45:     /**
 46:      * Attempts to cache the sent entity by its last modification date.
 47:      * @param  string|int|DateTime  last modified time
 48:      * @param  string  strong entity tag validator
 49:      * @return bool
 50:      */
 51:     public function isModified($lastModified = NULL, $etag = NULL)
 52:     {
 53:         if ($lastModified) {
 54:             $this->response->setHeader('Last-Modified', $this->response->date($lastModified));
 55:         }
 56:         if ($etag) {
 57:             $this->response->setHeader('ETag', '"' . addslashes($etag) . '"');
 58:         }
 59: 
 60:         $ifNoneMatch = $this->request->getHeader('If-None-Match');
 61:         if ($ifNoneMatch === '*') {
 62:             $match = TRUE; // match, check if-modified-since
 63: 
 64:         } elseif ($ifNoneMatch !== NULL) {
 65:             $etag = $this->response->getHeader('ETag');
 66: 
 67:             if ($etag == NULL || strpos(' ' . strtr($ifNoneMatch, ",\t", '  '), ' ' . $etag) === FALSE) {
 68:                 return TRUE;
 69: 
 70:             } else {
 71:                 $match = TRUE; // match, check if-modified-since
 72:             }
 73:         }
 74: 
 75:         $ifModifiedSince = $this->request->getHeader('If-Modified-Since');
 76:         if ($ifModifiedSince !== NULL) {
 77:             $lastModified = $this->response->getHeader('Last-Modified');
 78:             if ($lastModified != NULL && strtotime($lastModified) <= strtotime($ifModifiedSince)) {
 79:                 $match = TRUE;
 80: 
 81:             } else {
 82:                 return TRUE;
 83:             }
 84:         }
 85: 
 86:         if (empty($match)) {
 87:             return TRUE;
 88:         }
 89: 
 90:         $this->response->setCode(IResponse::S304_NOT_MODIFIED);
 91:         return FALSE;
 92:     }
 93: 
 94: 
 95: 
 96:     /**
 97:      * @return IRequest
 98:      */
 99:     public function getRequest()
100:     {
101:         return $this->request;
102:     }
103: 
104: 
105: 
106:     /**
107:      * @return IResponse
108:      */
109:     public function getResponse()
110:     {
111:         return $this->response;
112:     }
113: 
114: }
115: 
Nette Framework 2.0.3 API API documentation generated by ApiGen 2.7.0