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| 1 | <?php |
| 2 | |
| 3 | // {{{ License |
| 4 | // This file is part of GNU social - https://www.gnu.org/software/social |
| 5 | // |
| 6 | // GNU social is free software: you can redistribute it and/or modify |
| 7 | // it under the terms of the GNU Affero General Public License as published by |
| 8 | // the Free Software Foundation, either version 3 of the License, or |
| 9 | // (at your option) any later version. |
| 10 | // |
| 11 | // GNU social is distributed in the hope that it will be useful, |
| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | // GNU Affero General Public License for more details. |
| 15 | // |
| 16 | // You should have received a copy of the GNU Affero General Public License |
| 17 | // along with GNU social. If not, see <http://www.gnu.org/licenses/>. |
| 18 | // }}} |
| 19 | |
| 20 | /** |
| 21 | * Extracts translation messages from PHP code. |
| 22 | * |
| 23 | * @package GNUsocial |
| 24 | * @category I18n |
| 25 | * |
| 26 | * @author Symfony project |
| 27 | * @author Michel Salib <michelsalib@hotmail.com> |
| 28 | * @author Fabien Potencier <fabien@symfony.com> |
| 29 | * @copyright 2011-2019 Symfony project |
| 30 | * @author Hugo Sales <hugo@hsal.es> |
| 31 | * @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org |
| 32 | * @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later |
| 33 | */ |
| 34 | |
| 35 | namespace App\Core\I18n; |
| 36 | |
| 37 | use App\Util\Formatting; |
| 38 | use ArrayIterator; |
| 39 | use function count; |
| 40 | use InvalidArgumentException; |
| 41 | use Iterator; |
| 42 | use Symfony\Component\Finder\Finder; |
| 43 | use Symfony\Component\Translation\Extractor\AbstractFileExtractor; |
| 44 | use Symfony\Component\Translation\Extractor\ExtractorInterface; |
| 45 | use Symfony\Component\Translation\Extractor\PhpStringTokenParser; |
| 46 | use Symfony\Component\Translation\MessageCatalogue; |
| 47 | |
| 48 | /** |
| 49 | * Since this happens outside the normal request life-cycle (through a |
| 50 | * command, usually), it unfeasible to test this |
| 51 | * |
| 52 | * @codeCoverageIgnore |
| 53 | */ |
| 54 | class TransExtractor extends AbstractFileExtractor implements ExtractorInterface |
| 55 | { |
| 56 | /** |
| 57 | * The sequence that captures translation messages. |
| 58 | * |
| 59 | * @todo add support for all the cases we use |
| 60 | * |
| 61 | * @var array |
| 62 | */ |
| 63 | protected $sequences = [ |
| 64 | // [ |
| 65 | // '_m', |
| 66 | // '(', |
| 67 | // self::MESSAGE_TOKEN, |
| 68 | // ',', |
| 69 | // self::METHOD_ARGUMENTS_TOKEN, |
| 70 | // ',', |
| 71 | // self::DOMAIN_TOKEN, |
| 72 | // ], |
| 73 | [ |
| 74 | '_m', |
| 75 | '(', |
| 76 | self::MESSAGE_TOKEN, |
| 77 | ], |
| 78 | [ |
| 79 | // Special case: when we have calls to _m with a dynamic |
| 80 | // value, we need to handle them seperately |
| 81 | 'function', |
| 82 | '_m_dynamic', |
| 83 | self::M_DYNAMIC, |
| 84 | ], |
| 85 | ]; |
| 86 | |
| 87 | // TODO probably shouldn't be done this way |
| 88 | // {{{Code from PhpExtractor |
| 89 | // See vendor/symfony/translation/Extractor/PhpExtractor.php |
| 90 | // |
| 91 | const MESSAGE_TOKEN = 300; |
| 92 | const METHOD_ARGUMENTS_TOKEN = 1000; |
| 93 | const DOMAIN_TOKEN = 1001; |
| 94 | const M_DYNAMIC = 1002; |
| 95 | |
| 96 | /** |
| 97 | * Prefix for new found message. |
| 98 | * |
| 99 | * @var string |
| 100 | */ |
| 101 | private $prefix = ''; |
| 102 | |
| 103 | /** |
| 104 | * {@inheritdoc} |
| 105 | */ |
| 106 | public function extract($resource, MessageCatalogue $catalog) |
| 107 | { |
| 108 | if (($dir = strstr($resource, '/Core/GNUsocial.php', true)) === false) { |
| 109 | return; |
| 110 | } |
| 111 | |
| 112 | $files = $this->extractFiles($dir); |
| 113 | foreach ($files as $file) { |
| 114 | $this->parseTokens(token_get_all(file_get_contents($file)), $catalog, $file); |
| 115 | |
| 116 | gc_mem_caches(); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * {@inheritdoc} |
| 122 | */ |
| 123 | public function setPrefix(string $prefix) |
| 124 | { |
| 125 | $this->prefix = $prefix; |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Normalizes a token. |
| 130 | * |
| 131 | * @param mixed $token |
| 132 | * |
| 133 | * @return null|string |
| 134 | */ |
| 135 | protected function normalizeToken($token) |
| 136 | { |
| 137 | if (isset($token[1]) && 'b"' !== $token) { |
| 138 | return $token[1]; |
| 139 | } |
| 140 | |
| 141 | return $token; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Seeks to a non-whitespace token. |
| 146 | */ |
| 147 | private function seekToNextRelevantToken(Iterator $tokenIterator) |
| 148 | { |
| 149 | for (; $tokenIterator->valid(); $tokenIterator->next()) { |
| 150 | $t = $tokenIterator->current(); |
| 151 | if (T_WHITESPACE !== $t[0]) { |
| 152 | break; |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * {@inheritdoc} |
| 159 | */ |
| 160 | private function skipMethodArgument(Iterator $tokenIterator) |
| 161 | { |
| 162 | $openBraces = 0; |
| 163 | |
| 164 | for (; $tokenIterator->valid(); $tokenIterator->next()) { |
| 165 | $t = $tokenIterator->current(); |
| 166 | |
| 167 | if ('[' === $t[0] || '(' === $t[0]) { |
| 168 | ++$openBraces; |
| 169 | } |
| 170 | |
| 171 | if (']' === $t[0] || ')' === $t[0]) { |
| 172 | --$openBraces; |
| 173 | } |
| 174 | |
| 175 | if ((0 === $openBraces && ',' === $t[0]) || (-1 === $openBraces && ')' === $t[0])) { |
| 176 | break; |
| 177 | } |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * @throws InvalidArgumentException |
| 183 | * |
| 184 | * @return bool |
| 185 | * |
| 186 | * |
| 187 | */ |
| 188 | protected function canBeExtracted(string $file) |
| 189 | { |
| 190 | return $this->isFile($file) |
| 191 | && 'php' === pathinfo($file, PATHINFO_EXTENSION) |
| 192 | && strstr($file, '/src/') !== false; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * {@inheritdoc} |
| 197 | */ |
| 198 | protected function extractFromDirectory($directory) |
| 199 | { |
| 200 | $finder = new Finder(); |
| 201 | return $finder->files()->name('*.php')->in($directory); |
| 202 | } |
| 203 | |
| 204 | /** |
| 205 | * Extracts the message from the iterator while the tokens |
| 206 | * match allowed message tokens. |
| 207 | */ |
| 208 | private function getValue(Iterator $tokenIterator) |
| 209 | { |
| 210 | $message = ''; |
| 211 | $docToken = ''; |
| 212 | $docPart = ''; |
| 213 | |
| 214 | for (; $tokenIterator->valid(); $tokenIterator->next()) { |
| 215 | $t = $tokenIterator->current(); |
| 216 | if ('.' === $t) { |
| 217 | // Concatenate with next token |
| 218 | continue; |
| 219 | } |
| 220 | if (!isset($t[1])) { |
| 221 | break; |
| 222 | } |
| 223 | |
| 224 | switch ($t[0]) { |
| 225 | case T_START_HEREDOC: |
| 226 | $docToken = $t[1]; |
| 227 | break; |
| 228 | case T_ENCAPSED_AND_WHITESPACE: |
| 229 | case T_CONSTANT_ENCAPSED_STRING: |
| 230 | if ('' === $docToken) { |
| 231 | $message .= PhpStringTokenParser::parse($t[1]); |
| 232 | } else { |
| 233 | $docPart = $t[1]; |
| 234 | } |
| 235 | break; |
| 236 | case T_END_HEREDOC: |
| 237 | $message .= PhpStringTokenParser::parseDocString($docToken, $docPart); |
| 238 | $docToken = ''; |
| 239 | $docPart = ''; |
| 240 | break; |
| 241 | case T_WHITESPACE: |
| 242 | break; |
| 243 | default: |
| 244 | break 2; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | return $message; |
| 249 | } |
| 250 | |
| 251 | // }}} |
| 252 | |
| 253 | /** |
| 254 | * Extracts trans message from PHP tokens. |
| 255 | */ |
| 256 | protected function parseTokens(array $tokens, MessageCatalogue $catalog, string $filename) |
| 257 | { |
| 258 | $tokenIterator = new ArrayIterator($tokens); |
| 259 | |
| 260 | for ($key = 0; $key < $tokenIterator->count(); ++$key) { |
| 261 | foreach ($this->sequences as $sequence) { |
| 262 | $message = ''; |
| 263 | $domain = I18n::_mdomain($filename); |
| 264 | $tokenIterator->seek($key); |
| 265 | |
| 266 | foreach ($sequence as $sequenceKey => $item) { |
| 267 | $this->seekToNextRelevantToken($tokenIterator); |
| 268 | |
| 269 | if ($this->normalizeToken($tokenIterator->current()) === $item) { |
| 270 | $tokenIterator->next(); |
| 271 | continue; |
| 272 | } elseif (self::MESSAGE_TOKEN === $item) { |
| 273 | $message = $this->getValue($tokenIterator); |
| 274 | |
| 275 | if (count($sequence) === ($sequenceKey + 1)) { |
| 276 | break; |
| 277 | } |
| 278 | } elseif (self::METHOD_ARGUMENTS_TOKEN === $item) { |
| 279 | $this->skipMethodArgument($tokenIterator); |
| 280 | } elseif (self::DOMAIN_TOKEN === $item) { |
| 281 | $domainToken = $this->getValue($tokenIterator); |
| 282 | if ('' !== $domainToken) { |
| 283 | $domain = $domainToken; |
| 284 | } |
| 285 | break; |
| 286 | } elseif (self::M_DYNAMIC === $item) { |
| 287 | // Special case |
| 288 | self::storeDynamic($catalog, $filename); |
| 289 | } else { |
| 290 | break; |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | if ($message) { |
| 295 | self::store($catalog, $message, $domain, $filename, $tokens[$key][2]); // Line no. |
| 296 | break; |
| 297 | } |
| 298 | } |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Store the $message in the message catalogue $mc |
| 304 | */ |
| 305 | private function store(MessageCatalogue $mc, string $message, |
| 306 | string $domain, string $filename, ?int $line_no = null) |
| 307 | { |
| 308 | $mc->set($message, $this->prefix . $message, $domain); |
| 309 | $metadata = $mc->getMetadata($message, $domain) ?? []; |
| 310 | $metadata['sources'][] = Formatting::normalizePath($filename) . (!empty($line_no) ? ":{$line_no}" : ''); |
| 311 | $mc->setMetadata($message, $metadata, $domain); |
| 312 | } |
| 313 | |
| 314 | /** |
| 315 | * Calls `::_m_dynamic` from the class defined in $filename and |
| 316 | * stores the results in the catalogue. For cases when the |
| 317 | * translation can't be done in a static (non-PHP) file |
| 318 | */ |
| 319 | private function storeDynamic(MessageCatalogue $mc, string $filename) |
| 320 | { |
| 321 | require_once $filename; |
| 322 | $class = preg_replace('/.*\/([A-Za-z]*)\.php/', '\1', $filename); |
| 323 | $classes = get_declared_classes(); |
| 324 | |
| 325 | // Find FQCN of $class |
| 326 | foreach ($classes as $c) { |
| 327 | if (strstr($c, $class) !== false) { |
| 328 | $class = $c; |
| 329 | break; |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | $messages = $class::_m_dynamic(); |
| 334 | $domain = $messages['domain']; |
| 335 | unset($messages['domain']); |
| 336 | foreach ($messages as $m) { |
| 337 | self::store($mc, $m, $domain, $filename); |
| 338 | } |
| 339 | } |
| 340 | } |