| 1 | <?php |
| 2 | |
| 3 | namespace wcf\system\bbcode; |
| 4 | |
| 5 | use wcf\data\bbcode\BBCode; |
| 6 | use wcf\data\bbcode\BBCodeCache; |
| 7 | use wcf\system\application\ApplicationHandler; |
| 8 | use wcf\system\package\license\LicenseApi; |
| 9 | use wcf\system\SingletonFactory; |
| 10 | use wcf\system\WCF; |
| 11 | use wcf\util\ArrayUtil; |
| 12 | use wcf\util\JSON; |
| 13 | use wcf\util\StringUtil; |
| 14 | |
| 15 | /** |
| 16 | * Handles BBCodes displayed as buttons within the WYSIWYG editor. |
| 17 | * |
| 18 | * @author Alexander Ebert |
| 19 | * @copyright 2001-2019 WoltLab GmbH |
| 20 | * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php> |
| 21 | */ |
| 22 | class BBCodeHandler extends SingletonFactory |
| 23 | { |
| 24 | /** |
| 25 | * list of BBCodes displayed as buttons |
| 26 | * @var BBCode[] |
| 27 | */ |
| 28 | protected $buttonBBCodes = []; |
| 29 | |
| 30 | /** |
| 31 | * list of BBCodes disallowed for usage |
| 32 | * @var BBCode[] |
| 33 | */ |
| 34 | protected $disallowedBBCodes = []; |
| 35 | |
| 36 | /** |
| 37 | * list of BBCodes which contain raw code (disabled BBCode parsing) |
| 38 | * @var BBCode[] |
| 39 | */ |
| 40 | protected $sourceBBCodes; |
| 41 | |
| 42 | /** |
| 43 | * meta information about highlighters |
| 44 | * @var mixed[] |
| 45 | */ |
| 46 | protected $highlighterMeta; |
| 47 | |
| 48 | /** |
| 49 | * @inheritDoc |
| 50 | */ |
| 51 | protected function init() |
| 52 | { |
| 53 | foreach (BBCodeCache::getInstance()->getBBCodes() as $bbcode) { |
| 54 | if ($bbcode->showButton) { |
| 55 | $this->buttonBBCodes[] = $bbcode; |
| 56 | } |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Returns true if the BBCode with the given tag is available in the WYSIWYG editor. |
| 62 | */ |
| 63 | public function isAvailableBBCode(string $bbCodeTag, bool $overrideFormattingRemoval = false): bool |
| 64 | { |
| 65 | if ($overrideFormattingRemoval === false) { |
| 66 | if ($bbCodeTag === "color" && \FORMATTING_REMOVE_COLOR) { |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | if ($bbCodeTag === "font" && \FORMATTING_REMOVE_FONT) { |
| 71 | return false; |
| 72 | } |
| 73 | |
| 74 | if ($bbCodeTag === "size" && \FORMATTING_REMOVE_SIZE) { |
| 75 | return false; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | return !\in_array($bbCodeTag, $this->disallowedBBCodes); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Returns all bbcodes. |
| 84 | * |
| 85 | * @return BBCode[] |
| 86 | */ |
| 87 | public function getBBCodes() |
| 88 | { |
| 89 | return BBCodeCache::getInstance()->getBBCodes(); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Returns a list of BBCodes displayed as buttons. |
| 94 | * |
| 95 | * @param bool $excludeCoreBBCodes do not return bbcodes that are available by default |
| 96 | * @return BBCode[] |
| 97 | */ |
| 98 | public function getButtonBBCodes($excludeCoreBBCodes = false) |
| 99 | { |
| 100 | $buttons = []; |
| 101 | $coreBBCodes = [ |
| 102 | 'align', |
| 103 | 'b', |
| 104 | 'code', |
| 105 | 'color', |
| 106 | 'html', |
| 107 | 'i', |
| 108 | 'img', |
| 109 | 'list', |
| 110 | 's', |
| 111 | 'size', |
| 112 | 'sub', |
| 113 | 'sup', |
| 114 | 'quote', |
| 115 | 'spoiler', |
| 116 | 'table', |
| 117 | 'tt', |
| 118 | 'u', |
| 119 | 'url', |
| 120 | ]; |
| 121 | foreach ($this->buttonBBCodes as $bbcode) { |
| 122 | if ($excludeCoreBBCodes && \in_array($bbcode->bbcodeTag, $coreBBCodes)) { |
| 123 | continue; |
| 124 | } |
| 125 | |
| 126 | if ($this->isAvailableBBCode($bbcode->bbcodeTag)) { |
| 127 | $buttons[] = $bbcode; |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | return $buttons; |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Sets the disallowed BBCodes. |
| 136 | * |
| 137 | * @param string[] $bbCodes |
| 138 | */ |
| 139 | public function setDisallowedBBCodes(array $bbCodes) |
| 140 | { |
| 141 | $this->disallowedBBCodes = $bbCodes; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Returns a list of BBCodes which contain raw code (disabled BBCode parsing) |
| 146 | * |
| 147 | * @return BBCode[] |
| 148 | * @deprecated 3.1 - This method is no longer supported. |
| 149 | */ |
| 150 | public function getSourceBBCodes() |
| 151 | { |
| 152 | return []; |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Returns metadata about the highlighters. |
| 157 | * |
| 158 | * @return string[][] |
| 159 | */ |
| 160 | public function getHighlighterMeta() |
| 161 | { |
| 162 | if ($this->highlighterMeta === null) { |
| 163 | $this->highlighterMeta = JSON::decode(\preg_replace( |
| 164 | '/.*\/\*!START\*\/\s*const\s*metadata\s*=\s*(.*)\s*;\s*\/\*!END\*\/.*/s', |
| 165 | '\\1', |
| 166 | \file_get_contents(WCF_DIR . '/js/WoltLabSuite/Core/prism-meta.js') |
| 167 | )); |
| 168 | } |
| 169 | |
| 170 | return $this->highlighterMeta; |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Returns a list of known highlighters. |
| 175 | * |
| 176 | * @return string[] |
| 177 | */ |
| 178 | public function getHighlighters() |
| 179 | { |
| 180 | return \array_keys($this->getHighlighterMeta()); |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * Returns the list of languages that are available for selection in the |
| 185 | * UI of CKEditor’s code block. |
| 186 | * |
| 187 | * @return list<string> |
| 188 | * @since 6.0 |
| 189 | */ |
| 190 | public function getCodeBlockLanguages(): array |
| 191 | { |
| 192 | return \explode("\n", StringUtil::unifyNewlines(\MESSAGE_PUBLIC_HIGHLIGHTERS)); |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * Returns a list of hostnames that are permitted as image sources. |
| 197 | * |
| 198 | * @return string[] |
| 199 | * @since 5.2 |
| 200 | */ |
| 201 | public function getImageExternalSourceWhitelist() |
| 202 | { |
| 203 | $hosts = []; |
| 204 | // Hide these hosts unless external sources are actually denied. |
| 205 | if (!IMAGE_ALLOW_EXTERNAL_SOURCE) { |
| 206 | $hosts = ArrayUtil::trim(\explode( |
| 207 | "\n", |
| 208 | \sprintf( |
| 209 | "%s\n%s", |
| 210 | \IMAGE_EXTERNAL_SOURCE_WHITELIST, |
| 211 | \INTERNAL_HOSTNAMES |
| 212 | ) |
| 213 | )); |
| 214 | } |
| 215 | |
| 216 | $hosts[] = ApplicationHandler::getInstance()->getDomainName(); |
| 217 | |
| 218 | return \array_unique($hosts); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * Exports a require.js requirement for the localization of the editor based |
| 223 | * on the current locale. Returns an empty string when there is no available |
| 224 | * localization or the locale equals the bundled value 'en'. |
| 225 | * |
| 226 | * @since 6.0 |
| 227 | */ |
| 228 | public function getEditorLocalization(): string |
| 229 | { |
| 230 | $availableTranslations = [ |
| 231 | 'af', |
| 232 | 'ar', |
| 233 | 'ast', |
| 234 | 'az', |
| 235 | 'bg', |
| 236 | 'bn', |
| 237 | 'bs', |
| 238 | 'ca', |
| 239 | 'cs', |
| 240 | 'da', |
| 241 | 'de-ch', |
| 242 | 'de', |
| 243 | 'el', |
| 244 | 'en-au', |
| 245 | 'en-gb', |
| 246 | 'eo', |
| 247 | 'es-co', |
| 248 | 'es', |
| 249 | 'et', |
| 250 | 'eu', |
| 251 | 'fa', |
| 252 | 'fi', |
| 253 | 'fr', |
| 254 | 'gl', |
| 255 | 'gu', |
| 256 | 'he', |
| 257 | 'hi', |
| 258 | 'hr', |
| 259 | 'hu', |
| 260 | 'id', |
| 261 | 'it', |
| 262 | 'ja', |
| 263 | 'jv', |
| 264 | 'kk', |
| 265 | 'km', |
| 266 | 'kn', |
| 267 | 'ko', |
| 268 | 'ku', |
| 269 | 'lt', |
| 270 | 'lv', |
| 271 | 'ms', |
| 272 | 'nb', |
| 273 | 'ne', |
| 274 | 'nl', |
| 275 | 'no', |
| 276 | 'oc', |
| 277 | 'pl', |
| 278 | 'pt-br', |
| 279 | 'pt', |
| 280 | 'ro', |
| 281 | 'ru', |
| 282 | 'si', |
| 283 | 'sk', |
| 284 | 'sl', |
| 285 | 'sq', |
| 286 | 'sr-latn', |
| 287 | 'sr', |
| 288 | 'sv', |
| 289 | 'th', |
| 290 | 'tk', |
| 291 | 'tr', |
| 292 | 'tt', |
| 293 | 'ug', |
| 294 | 'uk', |
| 295 | 'ur', |
| 296 | 'uz', |
| 297 | 'vi', |
| 298 | 'zh-cn', |
| 299 | 'zh', |
| 300 | ]; |
| 301 | |
| 302 | $locale = \strtolower(WCF::getLanguage()->getBcp47()); |
| 303 | if (\in_array($locale, $availableTranslations, true)) { |
| 304 | return \sprintf( |
| 305 | '"ckeditor5-translation/%s",', |
| 306 | $locale |
| 307 | ); |
| 308 | } |
| 309 | |
| 310 | // Some languages offer both specialized variants for certain locales |
| 311 | // but also provide a "generic" variant. For example, "en-gb" and "en". |
| 312 | [$languageCode] = \explode('-', $locale, 2); |
| 313 | if (\in_array($languageCode, $availableTranslations, true)) { |
| 314 | return \sprintf( |
| 315 | '"ckeditor5-translation/%s",', |
| 316 | $languageCode |
| 317 | ); |
| 318 | } |
| 319 | |
| 320 | // The default locale "en" is part of the generated bundle, we must not |
| 321 | // yield any module if this locale is (implicitly) requested. |
| 322 | return ""; |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * @since 6.0 |
| 327 | */ |
| 328 | public function getCkeditorLicenseKey(): string |
| 329 | { |
| 330 | $licenseApi = new LicenseApi(); |
| 331 | $licenseData = $licenseApi->readFromFile(); |
| 332 | |
| 333 | if ($licenseData === null) { |
| 334 | return ''; |
| 335 | } |
| 336 | |
| 337 | return $licenseData->license['ckeditorLicenseKey'] ?? ''; |
| 338 | } |
| 339 | } |