mirror of
https://github.com/php-curl-class/php-curl-class.git
synced 2026-10-03 18:46:44 +00:00
Fix #347: Add basic support for requests using relative paths
This commit is contained in:
Zach Borboa
@@ -0,0 +1,175 @@
|
||||
<?php
|
||||
|
||||
namespace Curl;
|
||||
|
||||
use Curl\StrUtil;
|
||||
|
||||
class Url
|
||||
{
|
||||
private $baseUrl = null;
|
||||
private $relativeUrl = null;
|
||||
|
||||
public function __construct($base_url, $relative_url = null)
|
||||
{
|
||||
$this->baseUrl = $base_url;
|
||||
$this->relativeUrl = $relative_url;
|
||||
}
|
||||
|
||||
public function __toString()
|
||||
{
|
||||
return $this->absolutizeUrl();
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove dot segments.
|
||||
*
|
||||
* Interpret and remove the special "." and ".." path segments from a referenced path.
|
||||
*/
|
||||
public static function removeDotSegments($input)
|
||||
{
|
||||
// 1. The input buffer is initialized with the now-appended path
|
||||
// components and the output buffer is initialized to the empty
|
||||
// string.
|
||||
$output = '';
|
||||
|
||||
// 2. While the input buffer is not empty, loop as follows:
|
||||
while (!empty($input)) {
|
||||
|
||||
// A. If the input buffer begins with a prefix of "../" or "./",
|
||||
// then remove that prefix from the input buffer; otherwise,
|
||||
if (StrUtil::startsWith($input, '../')) {
|
||||
$input = substr($input, 3);
|
||||
} elseif (StrUtil::startsWith($input, './')) {
|
||||
$input = substr($input, 2);
|
||||
|
||||
// B. if the input buffer begins with a prefix of "/./" or "/.",
|
||||
// where "." is a complete path segment, then replace that
|
||||
// prefix with "/" in the input buffer; otherwise,
|
||||
} elseif (StrUtil::startsWith($input, '/./')) {
|
||||
$input = substr($input, 2);
|
||||
} elseif ($input === '/.') {
|
||||
$input = '/';
|
||||
|
||||
// C. if the input buffer begins with a prefix of "/../" or "/..",
|
||||
// where ".." is a complete path segment, then replace that
|
||||
// prefix with "/" in the input buffer and remove the last
|
||||
// segment and its preceding "/" (if any) from the output
|
||||
// buffer; otherwise,
|
||||
} elseif (StrUtil::startsWith($input, '/../')) {
|
||||
$input = substr($input, 3);
|
||||
$output = substr_replace($output, '', mb_strrpos($output, '/'));
|
||||
} elseif ($input === '/..') {
|
||||
$input = '/';
|
||||
$output = substr_replace($output, '', mb_strrpos($output, '/'));
|
||||
|
||||
// D. if the input buffer consists only of "." or "..", then remove
|
||||
// that from the input buffer; otherwise,
|
||||
} elseif ($input === '.' || $input === '..') {
|
||||
$input = '';
|
||||
|
||||
// E. move the first path segment in the input buffer to the end of
|
||||
// the output buffer, including the initial "/" character (if
|
||||
// any) and any subsequent characters up to, but not including,
|
||||
// the next "/" character or the end of the input buffer.
|
||||
} elseif (!(($pos = mb_strpos($input, '/', 1)) === false)) {
|
||||
$output .= substr($input, 0, $pos);
|
||||
$input = substr_replace($input, '', 0, $pos);
|
||||
} else {
|
||||
$output .= $input;
|
||||
$input = '';
|
||||
}
|
||||
}
|
||||
|
||||
// 3. Finally, the output buffer is returned as the result of
|
||||
// remove_dot_segments.
|
||||
return $output . $input;
|
||||
}
|
||||
|
||||
/**
|
||||
* Absolutize url.
|
||||
*
|
||||
* Combine the base and relative url into an absolute url.
|
||||
*/
|
||||
private function absolutizeUrl()
|
||||
{
|
||||
$b = $this->parseUrl($this->baseUrl);
|
||||
|
||||
if (!($this->relativeUrl === null)) {
|
||||
$r = $this->parseUrl($this->relativeUrl);
|
||||
|
||||
// Copy relative parts to base url.
|
||||
if (isset($r['scheme'])) {
|
||||
$b['scheme'] = $r['scheme'];
|
||||
}
|
||||
if (isset($r['host'])) {
|
||||
$b['host'] = $r['host'];
|
||||
}
|
||||
if (isset($r['port'])) {
|
||||
$b['port'] = $r['port'];
|
||||
}
|
||||
if (isset($r['user'])) {
|
||||
$b['user'] = $r['user'];
|
||||
}
|
||||
if (isset($r['pass'])) {
|
||||
$b['pass'] = $r['pass'];
|
||||
}
|
||||
|
||||
if (!isset($r['path']) || $r['path'] === '') {
|
||||
$r['path'] = '/';
|
||||
}
|
||||
// Merge relative url with base when relative url's path doesn't start with a slash.
|
||||
if (!(StrUtil::startsWith($r['path'], '/'))) {
|
||||
$base = mb_strrchr($b['path'], '/', true);
|
||||
if ($base === false) {
|
||||
$base = '';
|
||||
}
|
||||
$r['path'] = $base . '/' . $r['path'];
|
||||
}
|
||||
$b['path'] = $r['path'];
|
||||
$b['path'] = $this->removeDotSegments($b['path']);
|
||||
|
||||
if (isset($r['query'])) {
|
||||
$b['query'] = $r['query'];
|
||||
}
|
||||
if (isset($r['fragment'])) {
|
||||
$b['fragment'] = $r['fragment'];
|
||||
}
|
||||
}
|
||||
|
||||
if (!isset($b['path'])) {
|
||||
$b['path'] = '/';
|
||||
}
|
||||
|
||||
$absolutized_url = $this->unparseUrl($b);
|
||||
return $absolutized_url;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse url.
|
||||
*
|
||||
* Parse url into components of a URI as specified by RFC 3986.
|
||||
*/
|
||||
private function parseUrl($url)
|
||||
{
|
||||
return parse_url($url);
|
||||
}
|
||||
|
||||
/**
|
||||
* Unparse url.
|
||||
*
|
||||
* Combine url components into a url.
|
||||
*/
|
||||
private function unparseUrl($parsed_url) {
|
||||
$scheme = isset($parsed_url['scheme']) ? $parsed_url['scheme'] . '://' : '';
|
||||
$host = isset($parsed_url['host']) ? $parsed_url['host'] : '';
|
||||
$port = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : '';
|
||||
$user = isset($parsed_url['user']) ? $parsed_url['user'] : '';
|
||||
$pass = isset($parsed_url['pass']) ? ':' . $parsed_url['pass'] : '';
|
||||
$pass = ($user || $pass) ? $pass . '@' : '';
|
||||
$path = isset($parsed_url['path']) ? $parsed_url['path'] : '';
|
||||
$query = isset($parsed_url['query']) ? '?' . $parsed_url['query'] : '';
|
||||
$fragment = isset($parsed_url['fragment']) ? '#' . $parsed_url['fragment'] : '';
|
||||
$unparsed_url = $scheme . $user . $pass . $host . $port . $path . $query . $fragment;
|
||||
return $unparsed_url;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user