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1 <?php 2 // +-----------------------------------------------------------------------+ 3 // | Copyright (c) 2002-2004, Richard Heyes | 4 // | All rights reserved. | 5 // | | 6 // | Redistribution and use in source and binary forms, with or without | 7 // | modification, are permitted provided that the following conditions | 8 // | are met: | 9 // | | 10 // | o Redistributions of source code must retain the above copyright | 11 // | notice, this list of conditions and the following disclaimer. | 12 // | o Redistributions in binary form must reproduce the above copyright | 13 // | notice, this list of conditions and the following disclaimer in the | 14 // | documentation and/or other materials provided with the distribution.| 15 // | o The names of the authors may not be used to endorse or promote | 16 // | products derived from this software without specific prior written | 17 // | permission. | 18 // | | 19 // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 20 // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 21 // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 22 // | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 23 // | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 24 // | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 25 // | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 26 // | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 27 // | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 28 // | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 29 // | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 30 // | | 31 // +-----------------------------------------------------------------------+ 32 // | Author: Richard Heyes <richard at php net> | 33 // +-----------------------------------------------------------------------+ 34 // 35 // $Id: URL.php,v 1.36 2004/06/19 18:58:50 richard Exp $ 36 // 37 // Net_URL Class 38 39 class Net_URL 40 { 41 /** 42 * Full url 43 * @var string 44 */ 45 var $url; 46 47 /** 48 * Protocol 49 * @var string 50 */ 51 var $protocol; 52 53 /** 54 * Username 55 * @var string 56 */ 57 var $username; 58 59 /** 60 * Password 61 * @var string 62 */ 63 var $password; 64 65 /** 66 * Host 67 * @var string 68 */ 69 var $host; 70 71 /** 72 * Port 73 * @var integer 74 */ 75 var $port; 76 77 /** 78 * Path 79 * @var string 80 */ 81 var $path; 82 83 /** 84 * Query string 85 * @var array 86 */ 87 var $querystring; 88 89 /** 90 * Anchor 91 * @var string 92 */ 93 var $anchor; 94 95 /** 96 * Whether to use [] 97 * @var bool 98 */ 99 var $useBrackets; 100 101 /** 102 * PHP4 Constructor 103 * 104 * @see __construct() 105 */ 106 function Net_URL($url = null, $useBrackets = true) 107 { 108 $this->__construct($url, $useBrackets); 109 } 110 111 /** 112 * PHP5 Constructor 113 * 114 * Parses the given url and stores the various parts 115 * Defaults are used in certain cases 116 * 117 * @param string $url Optional URL 118 * @param bool $useBrackets Whether to use square brackets when 119 * multiple querystrings with the same name 120 * exist 121 */ 122 function __construct($url = null, $useBrackets = true) 123 { 124 $HTTP_SERVER_VARS = !empty($_SERVER) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS']; 125 126 $this->useBrackets = $useBrackets; 127 $this->url = $url; 128 $this->user = ''; 129 $this->pass = ''; 130 $this->host = ''; 131 $this->port = 80; 132 $this->path = ''; 133 $this->querystring = array(); 134 $this->anchor = ''; 135 136 // Only use defaults if not an absolute URL given 137 if (!preg_match('/^[a-z0-9]+:\/\//i', $url)) { 138 139 $this->protocol = (@$HTTP_SERVER_VARS['HTTPS'] == 'on' ? 'https' : 'http'); 140 141 /** 142 * Figure out host/port 143 */ 144 if (!empty($HTTP_SERVER_VARS['HTTP_HOST']) AND preg_match('/^(.*)(:([0-9]+))?$/U', $HTTP_SERVER_VARS['HTTP_HOST'], $matches)) { 145 $host = $matches[1]; 146 if (!empty($matches[3])) { 147 $port = $matches[3]; 148 } else { 149 $port = $this->getStandardPort($this->protocol); 150 } 151 } 152 153 $this->user = ''; 154 $this->pass = ''; 155 $this->host = !empty($host) ? $host : (isset($HTTP_SERVER_VARS['SERVER_NAME']) ? $HTTP_SERVER_VARS['SERVER_NAME'] : 'localhost'); 156 $this->port = !empty($port) ? $port : (isset($HTTP_SERVER_VARS['SERVER_PORT']) ? $HTTP_SERVER_VARS['SERVER_PORT'] : $this->getStandardPort($this->protocol)); 157 $this->path = !empty($HTTP_SERVER_VARS['PHP_SELF']) ? $HTTP_SERVER_VARS['PHP_SELF'] : '/'; 158 $this->querystring = isset($HTTP_SERVER_VARS['QUERY_STRING']) ? $this->_parseRawQuerystring($HTTP_SERVER_VARS['QUERY_STRING']) : null; 159 $this->anchor = ''; 160 } 161 162 // Parse the url and store the various parts 163 if (!empty($url)) { 164 $urlinfo = parse_url($url); 165 166 // Default querystring 167 $this->querystring = array(); 168 169 foreach ($urlinfo as $key => $value) { 170 switch ($key) { 171 case 'scheme': 172 $this->protocol = $value; 173 $this->port = $this->getStandardPort($value); 174 break; 175 176 case 'user': 177 case 'pass': 178 case 'host': 179 case 'port': 180 $this->$key = $value; 181 break; 182 183 case 'path': 184 if ($value{0} == '/') { 185 $this->path = $value; 186 } else { 187 $path = dirname($this->path) == DIRECTORY_SEPARATOR ? '' : dirname($this->path); 188 $this->path = sprintf('%s/%s', $path, $value); 189 } 190 break; 191 192 case 'query': 193 $this->querystring = $this->_parseRawQueryString($value); 194 break; 195 196 case 'fragment': 197 $this->anchor = $value; 198 break; 199 } 200 } 201 } 202 } 203 204 /** 205 * Returns full url 206 * 207 * @return string Full url 208 * @access public 209 */ 210 function getURL() 211 { 212 $querystring = $this->getQueryString(); 213 214 $this->url = $this->protocol . '://' 215 . $this->user . (!empty($this->pass) ? ':' : '') 216 . $this->pass . (!empty($this->user) ? '@' : '') 217 . $this->host . ($this->port == $this->getStandardPort($this->protocol) ? '' : ':' . $this->port) 218 . $this->path 219 . (!empty($querystring) ? '?' . $querystring : '') 220 . (!empty($this->anchor) ? '#' . $this->anchor : ''); 221 222 return $this->url; 223 } 224 225 /** 226 * Adds a querystring item 227 * 228 * @param string $name Name of item 229 * @param string $value Value of item 230 * @param bool $preencoded Whether value is urlencoded or not, default = not 231 * @access public 232 */ 233 function addQueryString($name, $value, $preencoded = false) 234 { 235 if ($preencoded) { 236 $this->querystring[$name] = $value; 237 } else { 238 $this->querystring[$name] = is_array($value) ? array_map('rawurlencode', $value): rawurlencode($value); 239 } 240 } 241 242 /** 243 * Removes a querystring item 244 * 245 * @param string $name Name of item 246 * @access public 247 */ 248 function removeQueryString($name) 249 { 250 if (isset($this->querystring[$name])) { 251 unset($this->querystring[$name]); 252 } 253 } 254 255 /** 256 * Sets the querystring to literally what you supply 257 * 258 * @param string $querystring The querystring data. Should be of the format foo=bar&x=y etc 259 * @access public 260 */ 261 function addRawQueryString($querystring) 262 { 263 $this->querystring = $this->_parseRawQueryString($querystring); 264 } 265 266 /** 267 * Returns flat querystring 268 * 269 * @return string Querystring 270 * @access public 271 */ 272 function getQueryString() 273 { 274 if (!empty($this->querystring)) { 275 foreach ($this->querystring as $name => $value) { 276 if (is_array($value)) { 277 foreach ($value as $k => $v) { 278 $querystring[] = $this->useBrackets ? sprintf('%s[%s]=%s', $name, $k, $v) : ($name . '=' . $v); 279 } 280 } elseif (!is_null($value)) { 281 $querystring[] = $name . '=' . $value; 282 } else { 283 $querystring[] = $name; 284 } 285 } 286 $querystring = implode(ini_get('arg_separator.output'), $querystring); 287 } else { 288 $querystring = ''; 289 } 290 291 return $querystring; 292 } 293 294 /** 295 * Parses raw querystring and returns an array of it 296 * 297 * @param string $querystring The querystring to parse 298 * @return array An array of the querystring data 299 * @access private 300 */ 301 function _parseRawQuerystring($querystring) 302 { 303 $parts = preg_split('/[' . preg_quote(ini_get('arg_separator.input'), '/') . ']/', $querystring, -1, PREG_SPLIT_NO_EMPTY); 304 $return = array(); 305 306 foreach ($parts as $part) { 307 if (strpos($part, '=') !== false) { 308 $value = substr($part, strpos($part, '=') + 1); 309 $key = substr($part, 0, strpos($part, '=')); 310 } else { 311 $value = null; 312 $key = $part; 313 } 314 if (substr($key, -2) == '[]') { 315 $key = substr($key, 0, -2); 316 if (@!is_array($return[$key])) { 317 $return[$key] = array(); 318 $return[$key][] = $value; 319 } else { 320 $return[$key][] = $value; 321 } 322 } elseif (!$this->useBrackets AND !empty($return[$key])) { 323 $return[$key] = (array)$return[$key]; 324 $return[$key][] = $value; 325 } else { 326 $return[$key] = $value; 327 } 328 } 329 330 return $return; 331 } 332 333 /** 334 * Resolves //, ../ and ./ from a path and returns 335 * the result. Eg: 336 * 337 * /foo/bar/../boo.php => /foo/boo.php 338 * /foo/bar/../../boo.php => /boo.php 339 * /foo/bar/.././/boo.php => /foo/boo.php 340 * 341 * This method can also be called statically. 342 * 343 * @param string $url URL path to resolve 344 * @return string The result 345 */ 346 function resolvePath($path) 347 { 348 $path = explode('/', str_replace('//', '/', $path)); 349 350 for ($i=0; $i<count($path); $i++) { 351 if ($path[$i] == '.') { 352 unset($path[$i]); 353 $path = array_values($path); 354 $i--; 355 356 } elseif ($path[$i] == '..' AND ($i > 1 OR ($i == 1 AND $path[0] != '') ) ) { 357 unset($path[$i]); 358 unset($path[$i-1]); 359 $path = array_values($path); 360 $i -= 2; 361 362 } elseif ($path[$i] == '..' AND $i == 1 AND $path[0] == '') { 363 unset($path[$i]); 364 $path = array_values($path); 365 $i--; 366 367 } else { 368 continue; 369 } 370 } 371 372 return implode('/', $path); 373 } 374 375 /** 376 * Returns the standard port number for a protocol 377 * 378 * @param string $scheme The protocol to lookup 379 * @return integer Port number or NULL if no scheme matches 380 * 381 * @author Philippe Jausions <Philippe.Jausions@11abacus.com> 382 */ 383 function getStandardPort($scheme) 384 { 385 switch (strtolower($scheme)) { 386 case 'http': return 80; 387 case 'https': return 443; 388 case 'ftp': return 21; 389 case 'imap': return 143; 390 case 'imaps': return 993; 391 case 'pop3': return 110; 392 case 'pop3s': return 995; 393 default: return null; 394 } 395 } 396 397 /** 398 * Forces the URL to a particular protocol 399 * 400 * @param string $protocol Protocol to force the URL to 401 * @param integer $port Optional port (standard port is used by default) 402 */ 403 function setProtocol($protocol, $port = null) 404 { 405 $this->protocol = $protocol; 406 $this->port = is_null($port) ? $this->getStandardPort() : $port; 407 } 408 409 } 410 ?>
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| Généré le : Mon Nov 26 14:10:01 2007 | par Balluche grâce à PHPXref 0.7 |
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