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| Path_Processor | |
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| tokenize_path_constants | |
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| untokenize_path_constants | |
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| find_directory_with_autoloader | |
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| get_normalized_constants | |
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| is_absolute_path | |
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| find_absolute_plugin_path | |
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| get_real_path | |
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| 1 | <?php |
| 2 | /* HEADER */ // phpcs:ignore |
| 3 | |
| 4 | /** |
| 5 | * This class handles dealing with paths for the autoloader. |
| 6 | */ |
| 7 | class Path_Processor { |
| 8 | /** |
| 9 | * Given a path this will replace any of the path constants with a token to represent it. |
| 10 | * |
| 11 | * @param string $path The path we want to process. |
| 12 | * |
| 13 | * @return string The tokenized path. |
| 14 | */ |
| 15 | public function tokenize_path_constants( $path ) { |
| 16 | $path = wp_normalize_path( $path ); |
| 17 | |
| 18 | $constants = $this->get_normalized_constants(); |
| 19 | foreach ( $constants as $constant => $constant_path ) { |
| 20 | $len = strlen( $constant_path ); |
| 21 | if ( substr( $path, 0, $len ) !== $constant_path ) { |
| 22 | continue; |
| 23 | } |
| 24 | |
| 25 | return substr_replace( $path, '{{' . $constant . '}}', 0, $len ); |
| 26 | } |
| 27 | |
| 28 | return $path; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Given a path this will replace any of the path constant tokens with the expanded path. |
| 33 | * |
| 34 | * @param string $tokenized_path The path we want to process. |
| 35 | * |
| 36 | * @return string The expanded path. |
| 37 | */ |
| 38 | public function untokenize_path_constants( $tokenized_path ) { |
| 39 | $tokenized_path = wp_normalize_path( $tokenized_path ); |
| 40 | |
| 41 | $constants = $this->get_normalized_constants(); |
| 42 | foreach ( $constants as $constant => $constant_path ) { |
| 43 | $constant = '{{' . $constant . '}}'; |
| 44 | |
| 45 | $len = strlen( $constant ); |
| 46 | if ( substr( $tokenized_path, 0, $len ) !== $constant ) { |
| 47 | continue; |
| 48 | } |
| 49 | |
| 50 | return $this->get_real_path( substr_replace( $tokenized_path, $constant_path, 0, $len ) ); |
| 51 | } |
| 52 | |
| 53 | return $tokenized_path; |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Given a file and an array of places it might be, this will find the absolute path and return it. |
| 58 | * |
| 59 | * @param string $file The plugin or theme file to resolve. |
| 60 | * @param array $directories_to_check The directories we should check for the file if it isn't an absolute path. |
| 61 | * @param bool $safe_mode Reject `$file` if it appears unsafe. |
| 62 | * |
| 63 | * @return string|false Returns the absolute path to the directory, otherwise false. |
| 64 | */ |
| 65 | public function find_directory_with_autoloader( $file, $directories_to_check, $safe_mode = false ) { |
| 66 | $file = wp_normalize_path( $file ); |
| 67 | |
| 68 | if ( ! $this->is_absolute_path( $file ) ) { |
| 69 | $file = $this->find_absolute_plugin_path( $file, $directories_to_check ); |
| 70 | if ( ! isset( $file ) ) { |
| 71 | return false; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | if ( $safe_mode ) { |
| 76 | // Reject if the path (before resolving symlinks) isn't in a checked directory, or possibly tries to traverse out of it. |
| 77 | $ok = false; |
| 78 | foreach ( $directories_to_check as $directory ) { |
| 79 | $directory = wp_normalize_path( trailingslashit( $directory ) ); |
| 80 | // phpcs:ignore PHPCompatibility.FunctionUse.NewFunctions -- If we have wp_normalize_path, we should have WP's polyfills. |
| 81 | if ( ! str_starts_with( $file, $directory ) ) { |
| 82 | continue; |
| 83 | } |
| 84 | $slug_part = substr( $file, strlen( $directory ) - 1 ); |
| 85 | // phpcs:ignore PHPCompatibility.FunctionUse.NewFunctions -- If we have wp_normalize_path, we should have WP's polyfills. |
| 86 | if ( str_contains( $slug_part, '/../' ) || str_ends_with( $slug_part, '/..' ) ) { |
| 87 | continue; |
| 88 | } |
| 89 | $ok = true; |
| 90 | break; |
| 91 | } |
| 92 | if ( ! $ok ) { |
| 93 | return false; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | // We need the real path for consistency with __DIR__ paths. |
| 98 | $file = $this->get_real_path( $file ); |
| 99 | |
| 100 | // phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged |
| 101 | $directory = @is_file( $file ) ? dirname( $file ) : $file; |
| 102 | if ( ! @is_file( $directory . '/vendor/composer/jetpack_autoload_classmap.php' ) ) { |
| 103 | return false; |
| 104 | } |
| 105 | // phpcs:enable WordPress.PHP.NoSilencedErrors.Discouraged |
| 106 | |
| 107 | return $directory; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Fetches an array of normalized paths keyed by the constant they came from. |
| 112 | * |
| 113 | * @return string[] The normalized paths keyed by the constant. |
| 114 | */ |
| 115 | private function get_normalized_constants() { |
| 116 | $raw_constants = array( |
| 117 | // Order the constants from most-specific to least-specific. |
| 118 | 'WP_PLUGIN_DIR', |
| 119 | 'WPMU_PLUGIN_DIR', |
| 120 | 'WP_CONTENT_DIR', |
| 121 | 'ABSPATH', |
| 122 | ); |
| 123 | |
| 124 | $constants = array(); |
| 125 | foreach ( $raw_constants as $raw ) { |
| 126 | if ( ! defined( $raw ) ) { |
| 127 | continue; |
| 128 | } |
| 129 | |
| 130 | $path = wp_normalize_path( constant( $raw ) ); |
| 131 | if ( isset( $path ) ) { |
| 132 | $constants[ $raw ] = $path; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | return $constants; |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Indicates whether or not a path is absolute. |
| 141 | * |
| 142 | * @param string $path The path to check. |
| 143 | * |
| 144 | * @return bool True if the path is absolute, otherwise false. |
| 145 | */ |
| 146 | private function is_absolute_path( $path ) { |
| 147 | if ( empty( $path ) || 0 === strlen( $path ) || '.' === $path[0] ) { |
| 148 | return false; |
| 149 | } |
| 150 | |
| 151 | // Absolute paths on Windows may begin with a drive letter. |
| 152 | if ( preg_match( '/^[a-zA-Z]:[\/\\\\]/', $path ) ) { |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | // A path starting with / or \ is absolute; anything else is relative. |
| 157 | return ( '/' === $path[0] || '\\' === $path[0] ); |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Given a file and a list of directories to check, this method will try to figure out |
| 162 | * the absolute path to the file in question. |
| 163 | * |
| 164 | * @param string $normalized_path The normalized path to the plugin or theme file to resolve. |
| 165 | * @param array $directories_to_check The directories we should check for the file if it isn't an absolute path. |
| 166 | * |
| 167 | * @return string|null The absolute path to the plugin file, otherwise null. |
| 168 | */ |
| 169 | private function find_absolute_plugin_path( $normalized_path, $directories_to_check ) { |
| 170 | // We're only able to find the absolute path for plugin/theme PHP files. |
| 171 | if ( ! is_string( $normalized_path ) || '.php' !== substr( $normalized_path, -4 ) ) { |
| 172 | return null; |
| 173 | } |
| 174 | |
| 175 | foreach ( $directories_to_check as $directory ) { |
| 176 | $normalized_check = wp_normalize_path( trailingslashit( $directory ) ) . $normalized_path; |
| 177 | // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 178 | if ( @is_file( $normalized_check ) ) { |
| 179 | return $normalized_check; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | return null; |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Given a path this will figure out the real path that we should be using. |
| 188 | * |
| 189 | * @param string $path The path to resolve. |
| 190 | * |
| 191 | * @return string The resolved path. |
| 192 | */ |
| 193 | private function get_real_path( $path ) { |
| 194 | // We want to resolve symbolic links for consistency with __DIR__ paths. |
| 195 | // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 196 | $real_path = @realpath( $path ); |
| 197 | if ( false === $real_path ) { |
| 198 | // Let the autoloader deal with paths that don't exist. |
| 199 | $real_path = $path; |
| 200 | } |
| 201 | |
| 202 | // Using realpath will make it platform-specific so we must normalize it after. |
| 203 | if ( $path !== $real_path ) { |
| 204 | $real_path = wp_normalize_path( $real_path ); |
| 205 | } |
| 206 | |
| 207 | return $real_path; |
| 208 | } |
| 209 | } |