forked from GNUsocial/gnu-social
486 lines
15 KiB
PHP
486 lines
15 KiB
PHP
|
<?php
|
||
|
|
// +-----------------------------------------------------------------------+
|
||
|
|
// | Copyright (c) 2002-2004, Richard Heyes |
|
||
|
|
// | All rights reserved. |
|
||
|
|
// | |
|
||
|
|
// | Redistribution and use in source and binary forms, with or without |
|
||
|
|
// | modification, are permitted provided that the following conditions |
|
||
|
|
// | are met: |
|
||
|
|
// | |
|
||
|
|
// | o Redistributions of source code must retain the above copyright |
|
||
|
|
// | notice, this list of conditions and the following disclaimer. |
|
||
|
|
// | o Redistributions in binary form must reproduce the above copyright |
|
||
|
|
// | notice, this list of conditions and the following disclaimer in the |
|
||
|
|
// | documentation and/or other materials provided with the distribution.|
|
||
|
|
// | o The names of the authors may not be used to endorse or promote |
|
||
|
|
// | products derived from this software without specific prior written |
|
||
|
|
// | permission. |
|
||
|
|
// | |
|
||
|
|
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
||
|
|
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
||
|
|
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
||
|
|
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
||
|
|
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
||
|
|
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
||
|
|
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
||
|
|
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
||
|
|
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
||
|
|
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
||
|
|
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
||
|
|
// | |
|
||
|
|
// +-----------------------------------------------------------------------+
|
||
|
|
// | Author: Richard Heyes <richard at php net> |
|
||
|
|
// +-----------------------------------------------------------------------+
|
||
|
|
//
|
||
|
|
// $Id: URL.php,v 1.49 2007/06/28 14:43:07 davidc Exp $
|
||
|
|
//
|
||
|
|
// Net_URL Class
|
||
|
|
|
||
|
|
|
||
|
|
class Net_URL
|
||
|
|
{
|
||
|
|
var $options = array('encode_query_keys' => false);
|
||
|
|
/**
|
||
|
|
* Full url
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $url;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Protocol
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $protocol;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Username
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $username;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Password
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $password;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Host
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $host;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Port
|
||
|
|
* @var integer
|
||
|
|
*/
|
||
|
|
var $port;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Path
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $path;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Query string
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
var $querystring;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Anchor
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
var $anchor;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Whether to use []
|
||
|
|
* @var bool
|
||
|
|
*/
|
||
|
|
var $useBrackets;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* PHP4 Constructor
|
||
|
|
*
|
||
|
|
* @see __construct()
|
||
|
|
*/
|
||
|
|
function Net_URL($url = null, $useBrackets = true)
|
||
|
|
{
|
||
|
|
$this->__construct($url, $useBrackets);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* PHP5 Constructor
|
||
|
|
*
|
||
|
|
* Parses the given url and stores the various parts
|
||
|
|
* Defaults are used in certain cases
|
||
|
|
*
|
||
|
|
* @param string $url Optional URL
|
||
|
|
* @param bool $useBrackets Whether to use square brackets when
|
||
|
|
* multiple querystrings with the same name
|
||
|
|
* exist
|
||
|
|
*/
|
||
|
|
function __construct($url = null, $useBrackets = true)
|
||
|
|
{
|
||
|
|
$this->url = $url;
|
||
|
|
$this->useBrackets = $useBrackets;
|
||
|
|
|
||
|
|
$this->initialize();
|
||
|
|
}
|
||
|
|
|
||
|
|
function initialize()
|
||
|
|
{
|
||
|
|
$HTTP_SERVER_VARS = !empty($_SERVER) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS'];
|
||
|
|
|
||
|
|
$this->user = '';
|
||
|
|
$this->pass = '';
|
||
|
|
$this->host = '';
|
||
|
|
$this->port = 80;
|
||
|
|
$this->path = '';
|
||
|
|
$this->querystring = array();
|
||
|
|
$this->anchor = '';
|
||
|
|
|
||
|
|
// Only use defaults if not an absolute URL given
|
||
|
|
if (!preg_match('/^[a-z0-9]+:\/\//i', $this->url)) {
|
||
|
|
$this->protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 'https' : 'http');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Figure out host/port
|
||
|
|
*/
|
||
|
|
if (!empty($HTTP_SERVER_VARS['HTTP_HOST']) &&
|
||
|
|
preg_match('/^(.*)(:([0-9]+))?$/U', $HTTP_SERVER_VARS['HTTP_HOST'], $matches))
|
||
|
|
{
|
||
|
|
$host = $matches[1];
|
||
|
|
if (!empty($matches[3])) {
|
||
|
|
$port = $matches[3];
|
||
|
|
} else {
|
||
|
|
$port = $this->getStandardPort($this->protocol);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->user = '';
|
||
|
|
$this->pass = '';
|
||
|
|
$this->host = !empty($host) ? $host : (isset($HTTP_SERVER_VARS['SERVER_NAME']) ? $HTTP_SERVER_VARS['SERVER_NAME'] : 'localhost');
|
||
|
|
$this->port = !empty($port) ? $port : (isset($HTTP_SERVER_VARS['SERVER_PORT']) ? $HTTP_SERVER_VARS['SERVER_PORT'] : $this->getStandardPort($this->protocol));
|
||
|
|
$this->path = !empty($HTTP_SERVER_VARS['PHP_SELF']) ? $HTTP_SERVER_VARS['PHP_SELF'] : '/';
|
||
|
|
$this->querystring = isset($HTTP_SERVER_VARS['QUERY_STRING']) ? $this->_parseRawQuerystring($HTTP_SERVER_VARS['QUERY_STRING']) : null;
|
||
|
|
$this->anchor = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse the url and store the various parts
|
||
|
|
if (!empty($this->url)) {
|
||
|
|
$urlinfo = parse_url($this->url);
|
||
|
|
|
||
|
|
// Default querystring
|
||
|
|
$this->querystring = array();
|
||
|
|
|
||
|
|
foreach ($urlinfo as $key => $value) {
|
||
|
|
switch ($key) {
|
||
|
|
case 'scheme':
|
||
|
|
$this->protocol = $value;
|
||
|
|
$this->port = $this->getStandardPort($value);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'user':
|
||
|
|
case 'pass':
|
||
|
|
case 'host':
|
||
|
|
case 'port':
|
||
|
|
$this->$key = $value;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'path':
|
||
|
|
if ($value{0} == '/') {
|
||
|
|
$this->path = $value;
|
||
|
|
} else {
|
||
|
|
$path = dirname($this->path) == DIRECTORY_SEPARATOR ? '' : dirname($this->path);
|
||
|
|
$this->path = sprintf('%s/%s', $path, $value);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'query':
|
||
|
|
$this->querystring = $this->_parseRawQueryString($value);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'fragment':
|
||
|
|
$this->anchor = $value;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Returns full url
|
||
|
|
*
|
||
|
|
* @return string Full url
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function getURL()
|
||
|
|
{
|
||
|
|
$querystring = $this->getQueryString();
|
||
|
|
|
||
|
|
$this->url = $this->protocol . '://'
|
||
|
|
. $this->user . (!empty($this->pass) ? ':' : '')
|
||
|
|
. $this->pass . (!empty($this->user) ? '@' : '')
|
||
|
|
. $this->host . ($this->port == $this->getStandardPort($this->protocol) ? '' : ':' . $this->port)
|
||
|
|
. $this->path
|
||
|
|
. (!empty($querystring) ? '?' . $querystring : '')
|
||
|
|
. (!empty($this->anchor) ? '#' . $this->anchor : '');
|
||
|
|
|
||
|
|
return $this->url;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds or updates a querystring item (URL parameter).
|
||
|
|
* Automatically encodes parameters with rawurlencode() if $preencoded
|
||
|
|
* is false.
|
||
|
|
* You can pass an array to $value, it gets mapped via [] in the URL if
|
||
|
|
* $this->useBrackets is activated.
|
||
|
|
*
|
||
|
|
* @param string $name Name of item
|
||
|
|
* @param string $value Value of item
|
||
|
|
* @param bool $preencoded Whether value is urlencoded or not, default = not
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function addQueryString($name, $value, $preencoded = false)
|
||
|
|
{
|
||
|
|
if ($this->getOption('encode_query_keys')) {
|
||
|
|
$name = rawurlencode($name);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($preencoded) {
|
||
|
|
$this->querystring[$name] = $value;
|
||
|
|
} else {
|
||
|
|
$this->querystring[$name] = is_array($value) ? array_map('rawurlencode', $value): rawurlencode($value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes a querystring item
|
||
|
|
*
|
||
|
|
* @param string $name Name of item
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function removeQueryString($name)
|
||
|
|
{
|
||
|
|
if ($this->getOption('encode_query_keys')) {
|
||
|
|
$name = rawurlencode($name);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($this->querystring[$name])) {
|
||
|
|
unset($this->querystring[$name]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the querystring to literally what you supply
|
||
|
|
*
|
||
|
|
* @param string $querystring The querystring data. Should be of the format foo=bar&x=y etc
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function addRawQueryString($querystring)
|
||
|
|
{
|
||
|
|
$this->querystring = $this->_parseRawQueryString($querystring);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns flat querystring
|
||
|
|
*
|
||
|
|
* @return string Querystring
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function getQueryString()
|
||
|
|
{
|
||
|
|
if (!empty($this->querystring)) {
|
||
|
|
foreach ($this->querystring as $name => $value) {
|
||
|
|
// Encode var name
|
||
|
|
$name = rawurlencode($name);
|
||
|
|
|
||
|
|
if (is_array($value)) {
|
||
|
|
foreach ($value as $k => $v) {
|
||
|
|
$querystring[] = $this->useBrackets ? sprintf('%s[%s]=%s', $name, $k, $v) : ($name . '=' . $v);
|
||
|
|
}
|
||
|
|
} elseif (!is_null($value)) {
|
||
|
|
$querystring[] = $name . '=' . $value;
|
||
|
|
} else {
|
||
|
|
$querystring[] = $name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$querystring = implode(ini_get('arg_separator.output'), $querystring);
|
||
|
|
} else {
|
||
|
|
$querystring = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
return $querystring;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parses raw querystring and returns an array of it
|
||
|
|
*
|
||
|
|
* @param string $querystring The querystring to parse
|
||
|
|
* @return array An array of the querystring data
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _parseRawQuerystring($querystring)
|
||
|
|
{
|
||
|
|
$parts = preg_split('/[' . preg_quote(ini_get('arg_separator.input'), '/') . ']/', $querystring, -1, PREG_SPLIT_NO_EMPTY);
|
||
|
|
$return = array();
|
||
|
|
|
||
|
|
foreach ($parts as $part) {
|
||
|
|
if (strpos($part, '=') !== false) {
|
||
|
|
$value = substr($part, strpos($part, '=') + 1);
|
||
|
|
$key = substr($part, 0, strpos($part, '='));
|
||
|
|
} else {
|
||
|
|
$value = null;
|
||
|
|
$key = $part;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$this->getOption('encode_query_keys')) {
|
||
|
|
$key = rawurldecode($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (preg_match('#^(.*)\[([0-9a-z_-]*)\]#i', $key, $matches)) {
|
||
|
|
$key = $matches[1];
|
||
|
|
$idx = $matches[2];
|
||
|
|
|
||
|
|
// Ensure is an array
|
||
|
|
if (empty($return[$key]) || !is_array($return[$key])) {
|
||
|
|
$return[$key] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add data
|
||
|
|
if ($idx === '') {
|
||
|
|
$return[$key][] = $value;
|
||
|
|
} else {
|
||
|
|
$return[$key][$idx] = $value;
|
||
|
|
}
|
||
|
|
} elseif (!$this->useBrackets AND !empty($return[$key])) {
|
||
|
|
$return[$key] = (array)$return[$key];
|
||
|
|
$return[$key][] = $value;
|
||
|
|
} else {
|
||
|
|
$return[$key] = $value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolves //, ../ and ./ from a path and returns
|
||
|
|
* the result. Eg:
|
||
|
|
*
|
||
|
|
* /foo/bar/../boo.php => /foo/boo.php
|
||
|
|
* /foo/bar/../../boo.php => /boo.php
|
||
|
|
* /foo/bar/.././/boo.php => /foo/boo.php
|
||
|
|
*
|
||
|
|
* This method can also be called statically.
|
||
|
|
*
|
||
|
|
* @param string $path URL path to resolve
|
||
|
|
* @return string The result
|
||
|
|
*/
|
||
|
|
function resolvePath($path)
|
||
|
|
{
|
||
|
|
$path = explode('/', str_replace('//', '/', $path));
|
||
|
|
|
||
|
|
for ($i=0; $i<count($path); $i++) {
|
||
|
|
if ($path[$i] == '.') {
|
||
|
|
unset($path[$i]);
|
||
|
|
$path = array_values($path);
|
||
|
|
$i--;
|
||
|
|
|
||
|
|
} elseif ($path[$i] == '..' AND ($i > 1 OR ($i == 1 AND $path[0] != '') ) ) {
|
||
|
|
unset($path[$i]);
|
||
|
|
unset($path[$i-1]);
|
||
|
|
$path = array_values($path);
|
||
|
|
$i -= 2;
|
||
|
|
|
||
|
|
} elseif ($path[$i] == '..' AND $i == 1 AND $path[0] == '') {
|
||
|
|
unset($path[$i]);
|
||
|
|
$path = array_values($path);
|
||
|
|
$i--;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return implode('/', $path);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the standard port number for a protocol
|
||
|
|
*
|
||
|
|
* @param string $scheme The protocol to lookup
|
||
|
|
* @return integer Port number or NULL if no scheme matches
|
||
|
|
*
|
||
|
|
* @author Philippe Jausions <Philippe.Jausions@11abacus.com>
|
||
|
|
*/
|
||
|
|
function getStandardPort($scheme)
|
||
|
|
{
|
||
|
|
switch (strtolower($scheme)) {
|
||
|
|
case 'http': return 80;
|
||
|
|
case 'https': return 443;
|
||
|
|
case 'ftp': return 21;
|
||
|
|
case 'imap': return 143;
|
||
|
|
case 'imaps': return 993;
|
||
|
|
case 'pop3': return 110;
|
||
|
|
case 'pop3s': return 995;
|
||
|
|
default: return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Forces the URL to a particular protocol
|
||
|
|
*
|
||
|
|
* @param string $protocol Protocol to force the URL to
|
||
|
|
* @param integer $port Optional port (standard port is used by default)
|
||
|
|
*/
|
||
|
|
function setProtocol($protocol, $port = null)
|
||
|
|
{
|
||
|
|
$this->protocol = $protocol;
|
||
|
|
$this->port = is_null($port) ? $this->getStandardPort($protocol) : $port;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set an option
|
||
|
|
*
|
||
|
|
* This function set an option
|
||
|
|
* to be used thorough the script.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $optionName The optionname to set
|
||
|
|
* @param string $value The value of this option.
|
||
|
|
*/
|
||
|
|
function setOption($optionName, $value)
|
||
|
|
{
|
||
|
|
if (!array_key_exists($optionName, $this->options)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->options[$optionName] = $value;
|
||
|
|
$this->initialize();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get an option
|
||
|
|
*
|
||
|
|
* This function gets an option
|
||
|
|
* from the $this->options array
|
||
|
|
* and return it's value.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $opionName The name of the option to retrieve
|
||
|
|
* @see $this->options
|
||
|
|
*/
|
||
|
|
function getOption($optionName)
|
||
|
|
{
|
||
|
|
if (!isset($this->options[$optionName])) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->options[$optionName];
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
?>
|