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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Http;
  9: 
 10: use Nette,
 11:     Nette\Utils\Strings;
 12: 
 13: 
 14: /**
 15:  * Current HTTP request factory.
 16:  *
 17:  * @author     David Grudl
 18:  */
 19: class RequestFactory extends Nette\Object
 20: {
 21:     /** @internal */
 22:     const NONCHARS = '#[^\x09\x0A\x0D\x20-\x7E\xA0-\x{10FFFF}]#u';
 23: 
 24:     /** @var array */
 25:     public $urlFilters = array(
 26:         'path' => array('#/{2,}#' => '/'), // '%20' => ''
 27:         'url' => array(), // '#[.,)]\z#' => ''
 28:     );
 29: 
 30:     /** @var bool */
 31:     private $binary = FALSE;
 32: 
 33:     /** @var array */
 34:     private $proxies = array();
 35: 
 36: 
 37:     /**
 38:      * @param  bool
 39:      * @return self
 40:      */
 41:     public function setBinary($binary = TRUE)
 42:     {
 43:         $this->binary = (bool) $binary;
 44:         return $this;
 45:     }
 46: 
 47: 
 48:     /**
 49:      * @param  array|string
 50:      * @return self
 51:      */
 52:     public function setProxy($proxy)
 53:     {
 54:         $this->proxies = (array) $proxy;
 55:         return $this;
 56:     }
 57: 
 58: 
 59:     /**
 60:      * Creates current HttpRequest object.
 61:      * @return Request
 62:      */
 63:     public function createHttpRequest()
 64:     {
 65:         // DETECTS URI, base path and script path of the request.
 66:         $url = new UrlScript;
 67:         $url->setScheme(!empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'off') ? 'https' : 'http');
 68:         $url->setUser(isset($_SERVER['PHP_AUTH_USER']) ? $_SERVER['PHP_AUTH_USER'] : '');
 69:         $url->setPassword(isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '');
 70: 
 71:         // host & port
 72:         if ((isset($_SERVER[$tmp = 'HTTP_HOST']) || isset($_SERVER[$tmp = 'SERVER_NAME']))
 73:             && preg_match('#^([a-z0-9_.-]+|\[[a-f0-9:]+\])(:\d+)?\z#i', $_SERVER[$tmp], $pair)
 74:         ) {
 75:             $url->setHost(strtolower($pair[1]));
 76:             if (isset($pair[2])) {
 77:                 $url->setPort(substr($pair[2], 1));
 78:             } elseif (isset($_SERVER['SERVER_PORT'])) {
 79:                 $url->setPort($_SERVER['SERVER_PORT']);
 80:             }
 81:         }
 82: 
 83:         // path & query
 84:         if (isset($_SERVER['REQUEST_URI'])) { // Apache, IIS 6.0
 85:             $requestUrl = $_SERVER['REQUEST_URI'];
 86: 
 87:         } elseif (isset($_SERVER['ORIG_PATH_INFO'])) { // IIS 5.0 (PHP as CGI ?)
 88:             $requestUrl = $_SERVER['ORIG_PATH_INFO'];
 89:             if (isset($_SERVER['QUERY_STRING']) && $_SERVER['QUERY_STRING'] != '') {
 90:                 $requestUrl .= '?' . $_SERVER['QUERY_STRING'];
 91:             }
 92:         } else {
 93:             $requestUrl = '';
 94:         }
 95: 
 96:         $requestUrl = Strings::replace($requestUrl, $this->urlFilters['url']);
 97:         $tmp = explode('?', $requestUrl, 2);
 98:         $url->setPath(Strings::replace($tmp[0], $this->urlFilters['path']));
 99:         $url->setQuery(isset($tmp[1]) ? $tmp[1] : '');
100: 
101:         // normalized url
102:         $url->canonicalize();
103:         $url->setPath(Strings::fixEncoding($url->getPath()));
104: 
105:         // detect script path
106:         if (isset($_SERVER['SCRIPT_NAME'])) {
107:             $script = $_SERVER['SCRIPT_NAME'];
108:         } elseif (isset($_SERVER['DOCUMENT_ROOT'], $_SERVER['SCRIPT_FILENAME'])
109:             && strncmp($_SERVER['DOCUMENT_ROOT'], $_SERVER['SCRIPT_FILENAME'], strlen($_SERVER['DOCUMENT_ROOT'])) === 0
110:         ) {
111:             $script = '/' . ltrim(strtr(substr($_SERVER['SCRIPT_FILENAME'], strlen($_SERVER['DOCUMENT_ROOT'])), '\\', '/'), '/');
112:         } else {
113:             $script = '/';
114:         }
115: 
116:         $path = strtolower($url->getPath()) . '/';
117:         $script = strtolower($script) . '/';
118:         $max = min(strlen($path), strlen($script));
119:         for ($i = 0; $i < $max; $i++) {
120:             if ($path[$i] !== $script[$i]) {
121:                 break;
122:             } elseif ($path[$i] === '/') {
123:                 $url->setScriptPath(substr($url->getPath(), 0, $i + 1));
124:             }
125:         }
126: 
127:         // GET, POST, COOKIE
128:         $useFilter = (!in_array(ini_get('filter.default'), array('', 'unsafe_raw'), TRUE) || ini_get('filter.default_flags'));
129: 
130:         parse_str($url->getQuery(), $query);
131:         if (!$query) {
132:             $query = $useFilter ? filter_input_array(INPUT_GET, FILTER_UNSAFE_RAW) : (empty($_GET) ? array() : $_GET);
133:         }
134:         $post = $useFilter ? filter_input_array(INPUT_POST, FILTER_UNSAFE_RAW) : (empty($_POST) ? array() : $_POST);
135:         $cookies = $useFilter ? filter_input_array(INPUT_COOKIE, FILTER_UNSAFE_RAW) : (empty($_COOKIE) ? array() : $_COOKIE);
136: 
137:         $gpc = (bool) get_magic_quotes_gpc();
138: 
139:         // remove fucking quotes, control characters and check encoding
140:         if ($gpc || !$this->binary) {
141:             $list = array(& $query, & $post, & $cookies);
142:             while (list($key, $val) = each($list)) {
143:                 foreach ($val as $k => $v) {
144:                     unset($list[$key][$k]);
145: 
146:                     if ($gpc) {
147:                         $k = stripslashes($k);
148:                     }
149: 
150:                     if (!$this->binary && is_string($k) && (preg_match(self::NONCHARS, $k) || preg_last_error())) {
151:                         // invalid key -> ignore
152: 
153:                     } elseif (is_array($v)) {
154:                         $list[$key][$k] = $v;
155:                         $list[] = & $list[$key][$k];
156: 
157:                     } else {
158:                         if ($gpc && !$useFilter) {
159:                             $v = stripSlashes($v);
160:                         }
161:                         if (!$this->binary && (preg_match(self::NONCHARS, $v) || preg_last_error())) {
162:                             $v = '';
163:                         }
164:                         $list[$key][$k] = $v;
165:                     }
166:                 }
167:             }
168:             unset($list, $key, $val, $k, $v);
169:         }
170: 
171: 
172:         // FILES and create FileUpload objects
173:         $files = array();
174:         $list = array();
175:         if (!empty($_FILES)) {
176:             foreach ($_FILES as $k => $v) {
177:                 if (!$this->binary && is_string($k) && (preg_match(self::NONCHARS, $k) || preg_last_error())) {
178:                     continue;
179:                 }
180:                 $v['@'] = & $files[$k];
181:                 $list[] = $v;
182:             }
183:         }
184: 
185:         while (list(, $v) = each($list)) {
186:             if (!isset($v['name'])) {
187:                 continue;
188: 
189:             } elseif (!is_array($v['name'])) {
190:                 if ($gpc) {
191:                     $v['name'] = stripSlashes($v['name']);
192:                 }
193:                 if (!$this->binary && (preg_match(self::NONCHARS, $v['name']) || preg_last_error())) {
194:                     $v['name'] = '';
195:                 }
196:                 if ($v['error'] !== UPLOAD_ERR_NO_FILE) {
197:                     $v['@'] = new FileUpload($v);
198:                 }
199:                 continue;
200:             }
201: 
202:             foreach ($v['name'] as $k => $foo) {
203:                 if (!$this->binary && is_string($k) && (preg_match(self::NONCHARS, $k) || preg_last_error())) {
204:                     continue;
205:                 }
206:                 $list[] = array(
207:                     'name' => $v['name'][$k],
208:                     'type' => $v['type'][$k],
209:                     'size' => $v['size'][$k],
210:                     'tmp_name' => $v['tmp_name'][$k],
211:                     'error' => $v['error'][$k],
212:                     '@' => & $v['@'][$k],
213:                 );
214:             }
215:         }
216: 
217: 
218:         // HEADERS
219:         if (function_exists('apache_request_headers')) {
220:             $headers = apache_request_headers();
221:         } else {
222:             $headers = array();
223:             foreach ($_SERVER as $k => $v) {
224:                 if (strncmp($k, 'HTTP_', 5) == 0) {
225:                     $k = substr($k, 5);
226:                 } elseif (strncmp($k, 'CONTENT_', 8)) {
227:                     continue;
228:                 }
229:                 $headers[ strtr($k, '_', '-') ] = $v;
230:             }
231:         }
232: 
233: 
234:         $remoteAddr = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : NULL;
235:         $remoteHost = isset($_SERVER['REMOTE_HOST']) ? $_SERVER['REMOTE_HOST'] : NULL;
236: 
237:         // proxy
238:         foreach ($this->proxies as $proxy) {
239:             if (Helpers::ipMatch($remoteAddr, $proxy)) {
240:                 if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
241:                     $remoteAddr = trim(current(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR'])));
242:                 }
243:                 if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) {
244:                     $remoteHost = trim(current(explode(',', $_SERVER['HTTP_X_FORWARDED_HOST'])));
245:                 }
246:                 break;
247:             }
248:         }
249: 
250: 
251:         $method = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : NULL;
252:         if ($method === 'POST' && isset($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'])
253:             && preg_match('#^[A-Z]+\z#', $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'])
254:         ) {
255:             $method = $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'];
256:         }
257: 
258:         return new Request($url, $query, $post, $files, $cookies, $headers, $method, $remoteAddr, $remoteHost);
259:     }
260: 
261: }
262: 
Nette Framework 2.1.8 API API documentation generated by ApiGen 2.8.0