class-rio-relative-to-abs-uri.php
180 lines
| 1 | <?php |
| 2 | |
| 3 | namespace WRIO\Paths; |
| 4 | |
| 5 | // Exit if accessed directly |
| 6 | if ( ! defined( 'ABSPATH' ) ) { |
| 7 | exit; |
| 8 | } |
| 9 | |
| 10 | /** |
| 11 | * A php library for converting relative urls to absolute. |
| 12 | * Website: https://github.com/monkeysuffrage/phpuri |
| 13 | * |
| 14 | * <pre> |
| 15 | * echo phpUri::parse('https://www.google.com/')->join('foo'); |
| 16 | * //==> https://www.google.com/foo |
| 17 | * </pre> |
| 18 | * |
| 19 | * Licensed under The MIT License |
| 20 | * Redistributions of files must retain the above copyright notice. |
| 21 | * |
| 22 | * @version 1.0 |
| 23 | */ |
| 24 | class phpUri { |
| 25 | |
| 26 | /** |
| 27 | * http(s):// |
| 28 | * |
| 29 | * @var string |
| 30 | */ |
| 31 | public $scheme; |
| 32 | /** |
| 33 | * www.example.com |
| 34 | * |
| 35 | * @var string |
| 36 | */ |
| 37 | public $authority; |
| 38 | /** |
| 39 | * /search |
| 40 | * |
| 41 | * @var string |
| 42 | */ |
| 43 | public $path; |
| 44 | /** |
| 45 | * ?q=foo |
| 46 | * |
| 47 | * @var string |
| 48 | */ |
| 49 | public $query; |
| 50 | /** |
| 51 | * #bar |
| 52 | * |
| 53 | * @var string |
| 54 | */ |
| 55 | public $fragment; |
| 56 | |
| 57 | private function __construct( $string ) { |
| 58 | preg_match_all( '/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/', $string, $m ); |
| 59 | $this->scheme = $m[2][0]; |
| 60 | $this->authority = $m[4][0]; |
| 61 | /** |
| 62 | * CHANGE: |
| 63 | * |
| 64 | * @since 24 Mai 2015 10:02 Uhr |
| 65 | * |
| 66 | * Former code: $this->path = ( empty( $m[ 5 ][ 0 ] ) ) ? '/' : $m[ 5 ][ 0 ]; |
| 67 | * No tests failed, when the path is empty. |
| 68 | * With the former code, the relative urls //g and #s failed |
| 69 | */ |
| 70 | $this->path = $m[5][0]; |
| 71 | $this->query = $m[7][0]; |
| 72 | $this->fragment = $m[9][0]; |
| 73 | } |
| 74 | |
| 75 | private function to_str() { |
| 76 | $ret = ''; |
| 77 | if ( ! empty( $this->scheme ) ) { |
| 78 | $ret .= "{$this->scheme}:"; |
| 79 | } |
| 80 | if ( ! empty( $this->authority ) ) { |
| 81 | $ret .= "//{$this->authority}"; |
| 82 | } |
| 83 | $ret .= $this->normalize_path( $this->path ); |
| 84 | if ( ! empty( $this->query ) ) { |
| 85 | $ret .= "?{$this->query}"; |
| 86 | } |
| 87 | if ( ! empty( $this->fragment ) ) { |
| 88 | $ret .= "#{$this->fragment}"; |
| 89 | } |
| 90 | |
| 91 | return $ret; |
| 92 | } |
| 93 | |
| 94 | private function normalize_path( $path ) { |
| 95 | if ( empty( $path ) ) { |
| 96 | return ''; |
| 97 | } |
| 98 | $normalized_path = $path; |
| 99 | $normalized_path = preg_replace( '`//+`', '/', $normalized_path, - 1, $c0 ); |
| 100 | $normalized_path = preg_replace( '`^/\\.\\.?/`', '/', $normalized_path, - 1, $c1 ); |
| 101 | $normalized_path = preg_replace( '`/\\.(/|$)`', '/', $normalized_path, - 1, $c2 ); |
| 102 | /** |
| 103 | * CHANGE: |
| 104 | * |
| 105 | * @since 24 Mai 2015 10:05 Uhr |
| 106 | * changed limit form -1 to 1, because climbing up the directory-tree failed |
| 107 | */ |
| 108 | $normalized_path = preg_replace( '`/[^/]*?/\\.\\.(/|$)`', '/', $normalized_path, 1, $c3 ); |
| 109 | $num_matches = $c0 + $c1 + $c2 + $c3; |
| 110 | |
| 111 | return ( $num_matches > 0 ) ? $this->normalize_path( $normalized_path ) : $normalized_path; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Parse an url string |
| 116 | * |
| 117 | * @param string $url the url to parse |
| 118 | * |
| 119 | * @return phpUri |
| 120 | */ |
| 121 | public static function parse( $url ) { |
| 122 | $uri = new phpUri( $url ); |
| 123 | /** |
| 124 | * CHANGE: |
| 125 | * |
| 126 | * @since 24 Mai 2015 10:25 Uhr |
| 127 | * The base-url should always have a path |
| 128 | */ |
| 129 | if ( empty( $uri->path ) ) { |
| 130 | $uri->path = '/'; |
| 131 | } |
| 132 | |
| 133 | return $uri; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Join with a relative url |
| 138 | * |
| 139 | * @param string $relative the relative url to join |
| 140 | * |
| 141 | * @return string |
| 142 | */ |
| 143 | public function join( $relative ) { |
| 144 | $uri = new phpUri( $relative ); |
| 145 | switch ( true ) { |
| 146 | case ! empty( $uri->scheme ): |
| 147 | break; |
| 148 | case ! empty( $uri->authority ): |
| 149 | break; |
| 150 | case empty( $uri->path ): |
| 151 | $uri->path = $this->path; |
| 152 | if ( empty( $uri->query ) ) { |
| 153 | $uri->query = $this->query; |
| 154 | } |
| 155 | break; |
| 156 | case strpos( $uri->path, '/' ) === 0: |
| 157 | break; |
| 158 | default: |
| 159 | $base_path = $this->path; |
| 160 | if ( strpos( $base_path, '/' ) === false ) { |
| 161 | $base_path = ''; |
| 162 | } else { |
| 163 | $base_path = preg_replace( '/\/[^\/]+$/', '/', $base_path ); |
| 164 | } |
| 165 | if ( empty( $base_path ) && empty( $this->authority ) ) { |
| 166 | $base_path = '/'; |
| 167 | } |
| 168 | $uri->path = $base_path . $uri->path; |
| 169 | } |
| 170 | if ( empty( $uri->scheme ) ) { |
| 171 | $uri->scheme = $this->scheme; |
| 172 | if ( empty( $uri->authority ) ) { |
| 173 | $uri->authority = $this->authority; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | return $uri->to_str(); |
| 178 | } |
| 179 | } |
| 180 |