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PhutilURI.php
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Sat, Nov 23, 12:50

PhutilURI.php
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<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Basic URI parser object.
*
* @group util
*/
final class PhutilURI {
private $protocol;
private $domain;
private $port;
private $path;
private $query = array();
private $fragment;
public function __construct($uri) {
$parts = $this->parseURI($uri);
if ($parts) {
$this->protocol = $parts[1];
$this->domain = $parts[2];
$this->port = $parts[3];
$this->path = $parts[4];
parse_str($parts[5], $this->query);
$this->fragment = $parts[6];
}
}
private static function parseURI($uri) {
// NOTE: We allow "+" in the protocol for "svn+ssh" and similar.
$protocol = '([\w+]+):\/\/';
$domain = '([a-zA-Z0-9\.\-_]*)';
$port = '(?::(\d+))?';
$path = '((?:\/|^)[^#?]*)?';
$query = '(?:\?([^#]*))?';
$anchor = '(?:#(.*))?';
$regexp = '/^(?:'.$protocol.$domain.$port.')?'.$path.$query.$anchor.'$/S';
$matches = null;
$ok = preg_match($regexp, $uri, $matches);
if ($ok) {
return array_pad($matches, 7, null);
}
return null;
}
public function __toString() {
$prefix = null;
if ($this->protocol || $this->domain || $this->port) {
$protocol = nonempty($this->protocol, 'http');
$prefix = $protocol.'://'.$this->domain;
if ($this->port) {
$prefix .= ':'.$this->port;
}
}
if ($this->query) {
$query = '?'.http_build_query($this->query);
} else {
$query = null;
}
if (strlen($this->getFragment())) {
$fragment = '#'.$this->getFragment();
} else {
$fragment = null;
}
return $prefix.$this->getPath().$query.$fragment;
}
public function setQueryParam($key, $value) {
if ($value === null) {
unset($this->query[$key]);
} else {
$this->query[$key] = $value;
}
return $this;
}
public function setQueryParams(array $params) {
$this->query = $params;
return $this;
}
public function getQueryParams() {
return $this->query;
}
public function setProtocol($protocol) {
$this->protocol = $protocol;
return $this;
}
public function getProtocol() {
return $this->protocol;
}
public function setDomain($domain) {
$this->domain = $domain;
return $this;
}
public function getDomain() {
return $this->domain;
}
public function setPort($port) {
$this->port = $port;
return $this;
}
public function getPort() {
return $this->port;
}
public function setPath($path) {
$this->path = $path;
return $this;
}
public function getPath() {
return $this->path;
}
public function setFragment($fragment) {
$this->fragment = $fragment;
return $this;
}
public function getFragment() {
return $this->fragment;
}
public function alter($key, $value) {
$altered = clone $this;
$altered->setQueryParam($key, $value);
return $altered;
}
}

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