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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | namespace phpbb\textformatter\s9e; |
| 15 | |
| 16 | use s9e\TextFormatter\Configurator; |
| 17 | use s9e\TextFormatter\Configurator\Items\AttributeFilters\RegexpFilter; |
| 18 | use s9e\TextFormatter\Configurator\Items\UnsafeTemplate; |
| 19 | |
| 20 | /** |
| 21 | * Creates s9e\TextFormatter objects |
| 22 | */ |
| 23 | class factory implements \phpbb\textformatter\cache_interface |
| 24 | { |
| 25 | /** |
| 26 | * @var \phpbb\textformatter\s9e\link_helper |
| 27 | */ |
| 28 | protected $link_helper; |
| 29 | |
| 30 | /** |
| 31 | * @var \phpbb\cache\driver\driver_interface |
| 32 | */ |
| 33 | protected $cache; |
| 34 | |
| 35 | /** |
| 36 | * @var string Path to the cache dir |
| 37 | */ |
| 38 | protected $cache_dir; |
| 39 | |
| 40 | /** |
| 41 | * @var string Cache key used for the parser |
| 42 | */ |
| 43 | protected $cache_key_parser; |
| 44 | |
| 45 | /** |
| 46 | * @var string Cache key used for the renderer |
| 47 | */ |
| 48 | protected $cache_key_renderer; |
| 49 | |
| 50 | /** |
| 51 | * @var \phpbb\config\config |
| 52 | */ |
| 53 | protected $config; |
| 54 | |
| 55 | /** |
| 56 | * @var array Custom tokens used in bbcode.html and their corresponding token from the definition |
| 57 | */ |
| 58 | protected $custom_tokens = array( |
| 59 | 'email' => array('{DESCRIPTION}' => '{TEXT}'), |
| 60 | 'img' => array('{URL}' => '{IMAGEURL}'), |
| 61 | 'list' => array('{LIST_TYPE}' => '{HASHMAP}'), |
| 62 | 'quote' => array('{USERNAME}' => '{TEXT1}'), |
| 63 | 'size' => array('{SIZE}' => '{FONTSIZE}'), |
| 64 | 'url' => array('{DESCRIPTION}' => '{TEXT}'), |
| 65 | ); |
| 66 | |
| 67 | /** |
| 68 | * @var \phpbb\textformatter\data_access |
| 69 | */ |
| 70 | protected $data_access; |
| 71 | |
| 72 | /** |
| 73 | * @var array Default BBCode definitions |
| 74 | */ |
| 75 | protected $default_definitions = array( |
| 76 | 'attachment' => '[ATTACHMENT index={NUMBER} filename={TEXT;useContent}]', |
| 77 | 'b' => '[B]{TEXT}[/B]', |
| 78 | 'code' => '[CODE lang={IDENTIFIER;optional}]{TEXT}[/CODE]', |
| 79 | 'color' => '[COLOR={COLOR}]{TEXT}[/COLOR]', |
| 80 | 'email' => '[EMAIL={EMAIL;useContent} subject={TEXT1;optional;postFilter=rawurlencode} body={TEXT2;optional;postFilter=rawurlencode}]{TEXT}[/EMAIL]', |
| 81 | 'i' => '[I]{TEXT}[/I]', |
| 82 | 'img' => '[IMG src={IMAGEURL;useContent}]', |
| 83 | 'list' => '[LIST type={HASHMAP=1:decimal,a:lower-alpha,A:upper-alpha,i:lower-roman,I:upper-roman;optional;postFilter=#simpletext} #createChild=LI]{TEXT}[/LIST]', |
| 84 | 'li' => '[* $tagName=LI]{TEXT}[/*]', |
| 85 | 'mention' => |
| 86 | "[MENTION={PARSE=/^g:(?'group_id'\d+)|u:(?'user_id'\d+)$/} |
| 87 | group_id={UINT;optional} |
| 88 | profile_url={URL;optional;postFilter=#false} |
| 89 | user_id={UINT;optional} |
| 90 | ]{TEXT}[/MENTION]", |
| 91 | 'quote' => |
| 92 | "[QUOTE |
| 93 | author={TEXT1;optional} |
| 94 | post_id={UINT;optional} |
| 95 | post_url={URL;optional;postFilter=#false} |
| 96 | msg_id={UINT;optional} |
| 97 | msg_url={URL;optional;postFilter=#false} |
| 98 | profile_url={URL;optional;postFilter=#false} |
| 99 | time={UINT;optional} |
| 100 | url={URL;optional} |
| 101 | user_id={UINT;optional} |
| 102 | author={PARSE=/^\\[url=(?'url'.*?)](?'author'.*)\\[\\/url]$/i} |
| 103 | author={PARSE=/^\\[url](?'author'(?'url'.*?))\\[\\/url]$/i} |
| 104 | author={PARSE=/(?'url'https?:\\/\\/[^[\\]]+)/i} |
| 105 | ]{TEXT2}[/QUOTE]", |
| 106 | 'size' => '[SIZE={FONTSIZE}]{TEXT}[/SIZE]', |
| 107 | 'u' => '[U]{TEXT}[/U]', |
| 108 | 'url' => '[URL={URL;useContent} $forceLookahead=true]{TEXT}[/URL]', |
| 109 | ); |
| 110 | |
| 111 | /** |
| 112 | * @var array Default templates, taken from bbcode::bbcode_tpl() |
| 113 | */ |
| 114 | protected $default_templates = array( |
| 115 | 'b' => '<span style="font-weight: bold"><xsl:apply-templates/></span>', |
| 116 | 'i' => '<span style="font-style: italic"><xsl:apply-templates/></span>', |
| 117 | 'u' => '<span style="text-decoration: underline"><xsl:apply-templates/></span>', |
| 118 | 'img' => '<img src="{IMAGEURL}" class="postimage" alt="{L_IMAGE}"/>', |
| 119 | 'size' => '<span><xsl:attribute name="style"><xsl:text>font-size: </xsl:text><xsl:value-of select="substring(@size, 1, 4)"/><xsl:text>%; line-height: normal</xsl:text></xsl:attribute><xsl:apply-templates/></span>', |
| 120 | 'color' => '<span style="color: {COLOR}"><xsl:apply-templates/></span>', |
| 121 | 'email' => '<a> |
| 122 | <xsl:attribute name="href"> |
| 123 | <xsl:text>mailto:</xsl:text> |
| 124 | <xsl:value-of select="@email"/> |
| 125 | <xsl:if test="@subject or @body"> |
| 126 | <xsl:text>?</xsl:text> |
| 127 | <xsl:if test="@subject">subject=<xsl:value-of select="@subject"/></xsl:if> |
| 128 | <xsl:if test="@body"><xsl:if test="@subject">&</xsl:if>body=<xsl:value-of select="@body"/></xsl:if> |
| 129 | </xsl:if> |
| 130 | </xsl:attribute> |
| 131 | <xsl:apply-templates/> |
| 132 | </a>', |
| 133 | 'mention' => '<xsl:text>@</xsl:text> |
| 134 | <xsl:choose> |
| 135 | <xsl:when test="@profile_url"> |
| 136 | <a class="mention" href="{@profile_url}"> |
| 137 | <xsl:apply-templates/> |
| 138 | </a> |
| 139 | </xsl:when> |
| 140 | <xsl:otherwise> |
| 141 | <span class="mention"> |
| 142 | <xsl:apply-templates/> |
| 143 | </span> |
| 144 | </xsl:otherwise> |
| 145 | </xsl:choose>', |
| 146 | ); |
| 147 | |
| 148 | /** |
| 149 | * @var \phpbb\event\dispatcher_interface |
| 150 | */ |
| 151 | protected $dispatcher; |
| 152 | |
| 153 | /** |
| 154 | * @var \phpbb\log\log_interface |
| 155 | */ |
| 156 | protected $log; |
| 157 | |
| 158 | /** |
| 159 | * Constructor |
| 160 | * |
| 161 | * @param \phpbb\textformatter\data_access $data_access |
| 162 | * @param \phpbb\cache\driver\driver_interface $cache |
| 163 | * @param \phpbb\event\dispatcher_interface $dispatcher |
| 164 | * @param \phpbb\config\config $config |
| 165 | * @param \phpbb\textformatter\s9e\link_helper $link_helper |
| 166 | * @param \phpbb\log\log_interface $log |
| 167 | * @param string $cache_dir Path to the cache dir |
| 168 | * @param string $cache_key_parser Cache key used for the parser |
| 169 | * @param string $cache_key_renderer Cache key used for the renderer |
| 170 | */ |
| 171 | public function __construct(\phpbb\textformatter\data_access $data_access, \phpbb\cache\driver\driver_interface $cache, \phpbb\event\dispatcher_interface $dispatcher, \phpbb\config\config $config, \phpbb\textformatter\s9e\link_helper $link_helper, \phpbb\log\log_interface $log, $cache_dir, $cache_key_parser, $cache_key_renderer) |
| 172 | { |
| 173 | $this->link_helper = $link_helper; |
| 174 | $this->cache = $cache; |
| 175 | $this->cache_dir = $cache_dir; |
| 176 | $this->cache_key_parser = $cache_key_parser; |
| 177 | $this->cache_key_renderer = $cache_key_renderer; |
| 178 | $this->config = $config; |
| 179 | $this->data_access = $data_access; |
| 180 | $this->dispatcher = $dispatcher; |
| 181 | $this->log = $log; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * {@inheritdoc} |
| 186 | */ |
| 187 | public function invalidate() |
| 188 | { |
| 189 | $this->regenerate(); |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * {@inheritdoc} |
| 194 | * |
| 195 | * Will remove old renderers from the cache dir but won't touch the current renderer |
| 196 | */ |
| 197 | public function tidy() |
| 198 | { |
| 199 | // Get the name of current renderer |
| 200 | $renderer_data = $this->cache->get($this->cache_key_renderer); |
| 201 | $renderer_file = ($renderer_data) ? $renderer_data['class'] . '.php' : null; |
| 202 | |
| 203 | foreach (glob($this->cache_dir . 's9e_*') as $filename) |
| 204 | { |
| 205 | // Only remove the file if it's not the current renderer |
| 206 | if (!$renderer_file || substr($filename, -strlen($renderer_file)) !== $renderer_file) |
| 207 | { |
| 208 | unlink($filename); |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | /** |
| 214 | * Generate and return a new configured instance of s9e\TextFormatter\Configurator |
| 215 | * |
| 216 | * @return Configurator |
| 217 | */ |
| 218 | public function get_configurator() |
| 219 | { |
| 220 | // Create a new Configurator |
| 221 | $configurator = new Configurator; |
| 222 | |
| 223 | /** |
| 224 | * Modify the s9e\TextFormatter configurator before the default settings are set |
| 225 | * |
| 226 | * @event core.text_formatter_s9e_configure_before |
| 227 | * @var Configurator configurator Configurator instance |
| 228 | * @since 3.2.0-a1 |
| 229 | * @psalm-ignore-var |
| 230 | */ |
| 231 | $vars = ['configurator']; |
| 232 | extract($this->dispatcher->trigger_event('core.text_formatter_s9e_configure_before', compact($vars))); |
| 233 | |
| 234 | // Reset the list of allowed schemes |
| 235 | foreach ($configurator->urlConfig->getAllowedSchemes() as $scheme) |
| 236 | { |
| 237 | $configurator->urlConfig->disallowScheme($scheme); |
| 238 | } |
| 239 | foreach (array_filter(explode(',', $this->config['allowed_schemes_links'])) as $scheme) |
| 240 | { |
| 241 | $configurator->urlConfig->allowScheme(trim($scheme)); |
| 242 | } |
| 243 | |
| 244 | // Convert newlines to br elements by default |
| 245 | $configurator->rootRules->enableAutoLineBreaks(); |
| 246 | |
| 247 | // Don't automatically ignore text in places where text is not allowed |
| 248 | $configurator->rulesGenerator->remove('IgnoreTextIfDisallowed'); |
| 249 | |
| 250 | // Don't remove comments and instead convert them to xsl:comment elements |
| 251 | $configurator->templateNormalizer->remove('RemoveComments'); |
| 252 | $configurator->templateNormalizer->add('TransposeComments'); |
| 253 | |
| 254 | // Set the rendering engine and configure it to save to the cache dir |
| 255 | $configurator->rendering->engine = 'PHP'; |
| 256 | $configurator->rendering->engine->cacheDir = $this->cache_dir; |
| 257 | $configurator->rendering->engine->defaultClassPrefix = 's9e_renderer_'; |
| 258 | $configurator->rendering->engine->enableQuickRenderer = true; |
| 259 | |
| 260 | // Create custom filters for BBCode tokens that are supported in phpBB but not in |
| 261 | // s9e\TextFormatter |
| 262 | $filter = new RegexpFilter('#^' . get_preg_expression('relative_url') . '$#Du'); |
| 263 | $configurator->attributeFilters->add('#local_url', $filter); |
| 264 | $configurator->attributeFilters->add('#relative_url', $filter); |
| 265 | |
| 266 | // INTTEXT regexp from acp_bbcodes |
| 267 | $filter = new RegexpFilter('!^([\p{L}\p{N}\-+,_. ]+)$!Du'); |
| 268 | $configurator->attributeFilters->add('#inttext', $filter); |
| 269 | |
| 270 | // Create a custom filter for phpBB's per-mode font size limits |
| 271 | $configurator->attributeFilters |
| 272 | ->add('#fontsize', __NAMESPACE__ . '\\parser::filter_font_size') |
| 273 | ->addParameterByName('max_font_size') |
| 274 | ->addParameterByName('logger') |
| 275 | ->markAsSafeInCSS(); |
| 276 | |
| 277 | // Create a custom filter for image URLs |
| 278 | $configurator->attributeFilters |
| 279 | ->add('#imageurl', __NAMESPACE__ . '\\parser::filter_img_url') |
| 280 | ->addParameterByName('urlConfig') |
| 281 | ->addParameterByName('logger') |
| 282 | ->markAsSafeAsURL() |
| 283 | ->setJS('UrlFilter.filter'); |
| 284 | |
| 285 | // Add default BBCodes |
| 286 | foreach ($this->get_default_bbcodes($configurator) as $bbcode) |
| 287 | { |
| 288 | $this->add_bbcode($configurator, $bbcode['usage'], $bbcode['template']); |
| 289 | } |
| 290 | if (isset($configurator->tags['QUOTE'])) |
| 291 | { |
| 292 | // Remove the nesting limit and let other services remove quotes at parsing time |
| 293 | $configurator->tags['QUOTE']->nestingLimit = PHP_INT_MAX; |
| 294 | } |
| 295 | |
| 296 | // Modify the template to disable images/mentions depending on user's settings |
| 297 | foreach (['IMG', 'MENTION'] as $name) |
| 298 | { |
| 299 | $tag = $configurator->tags[$name]; |
| 300 | $tag->template = '<xsl:choose><xsl:when test="$S_VIEW' . $name . '">' . $tag->template . '</xsl:when><xsl:otherwise><xsl:apply-templates/></xsl:otherwise></xsl:choose>'; |
| 301 | } |
| 302 | |
| 303 | // Load custom BBCodes |
| 304 | foreach ($this->data_access->get_bbcodes() as $row) |
| 305 | { |
| 306 | // Insert the board's URL before {LOCAL_URL} tokens |
| 307 | $tpl = preg_replace_callback( |
| 308 | '#\\{LOCAL_URL\\d*\\}#', |
| 309 | function ($m) |
| 310 | { |
| 311 | return generate_board_url() . '/' . $m[0]; |
| 312 | }, |
| 313 | $row['bbcode_tpl'] |
| 314 | ); |
| 315 | $this->add_bbcode($configurator, $row['bbcode_match'], $tpl); |
| 316 | } |
| 317 | |
| 318 | // Load smilies |
| 319 | foreach ($this->data_access->get_smilies() as $row) |
| 320 | { |
| 321 | $configurator->Emoticons->set( |
| 322 | $row['code'], |
| 323 | '<img class="smilies" src="{$T_SMILIES_PATH}/' . $this->escape_html_attribute($row['smiley_url']) . '" width="' . $row['smiley_width'] . '" height="' . $row['smiley_height'] . '" alt="{.}" title="' . $this->escape_html_attribute($row['emotion']) . '"/>' |
| 324 | ); |
| 325 | } |
| 326 | |
| 327 | if (isset($configurator->Emoticons)) |
| 328 | { |
| 329 | // Force emoticons to be rendered as text if $S_VIEWSMILIES is not set |
| 330 | $configurator->Emoticons->notIfCondition = 'not($S_VIEWSMILIES)'; |
| 331 | |
| 332 | // Only parse emoticons at the beginning of the text or if they're preceded by any |
| 333 | // one of: a new line, a space, a dot, or a right square bracket |
| 334 | $configurator->Emoticons->notAfter = '[^\\n .\\]]'; |
| 335 | |
| 336 | // Ignore emoticons that are immediately followed by a "word" character |
| 337 | $configurator->Emoticons->notBefore = '\\w'; |
| 338 | } |
| 339 | |
| 340 | // Load the censored words |
| 341 | $censor = $this->data_access->get_censored_words(); |
| 342 | if (!empty($censor)) |
| 343 | { |
| 344 | // Use a namespaced tag to avoid collisions |
| 345 | $configurator->plugins->load('Censor', array('tagName' => 'censor:tag')); |
| 346 | foreach ($censor as $row) |
| 347 | { |
| 348 | $configurator->Censor->add($row['word'], $row['replacement']); |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | // Load the magic links plugins. We do that after BBCodes so that they use the same tags |
| 353 | $this->configure_autolink($configurator); |
| 354 | |
| 355 | // Register some vars with a default value. Those should be set at runtime by whatever calls |
| 356 | // the parser |
| 357 | $configurator->registeredVars['max_font_size'] = 0; |
| 358 | |
| 359 | // Load the Emoji plugin and modify its tag's template to obey viewsmilies |
| 360 | $tag = $configurator->Emoji->getTag(); |
| 361 | $tag->template = '<xsl:choose> |
| 362 | <xsl:when test="@tseq"> |
| 363 | <img alt="{.}" class="emoji" draggable="false" src="//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/{@tseq}.svg"/> |
| 364 | </xsl:when> |
| 365 | <xsl:otherwise> |
| 366 | <img alt="{.}" class="emoji" draggable="false" src="//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/{@seq}.svg"/> |
| 367 | </xsl:otherwise> |
| 368 | </xsl:choose>'; |
| 369 | $tag->template = '<xsl:choose><xsl:when test="$S_VIEWSMILIES">' . str_replace('class="emoji"', 'class="emoji smilies"', $tag->template) . '</xsl:when><xsl:otherwise><xsl:value-of select="."/></xsl:otherwise></xsl:choose>'; |
| 370 | |
| 371 | /** |
| 372 | * Modify the s9e\TextFormatter configurator after the default settings are set |
| 373 | * |
| 374 | * @event core.text_formatter_s9e_configure_after |
| 375 | * @var Configurator configurator Configurator instance |
| 376 | * @since 3.2.0-a1 |
| 377 | * @psalm-ignore-var |
| 378 | */ |
| 379 | $vars = ['configurator']; |
| 380 | extract($this->dispatcher->trigger_event('core.text_formatter_s9e_configure_after', compact($vars))); |
| 381 | |
| 382 | return $configurator; |
| 383 | } |
| 384 | |
| 385 | /** |
| 386 | * Regenerate and cache a new parser and renderer |
| 387 | * |
| 388 | * @return array Associative array with at least two elements: "parser" and "renderer" |
| 389 | */ |
| 390 | public function regenerate() |
| 391 | { |
| 392 | $configurator = $this->get_configurator(); |
| 393 | |
| 394 | // Get the censor helper and remove the Censor plugin if applicable |
| 395 | if (isset($configurator->Censor)) |
| 396 | { |
| 397 | $censor = $configurator->Censor->getHelper(); |
| 398 | unset($configurator->Censor); |
| 399 | unset($configurator->tags['censor:tag']); |
| 400 | } |
| 401 | |
| 402 | $objects = $configurator->finalize(); |
| 403 | |
| 404 | /** |
| 405 | * Access the objects returned by finalize() before they are saved to cache |
| 406 | * |
| 407 | * @event core.text_formatter_s9e_configure_finalize |
| 408 | * @var array objects Array containing a "parser" object, a "renderer" object and optionally a "js" string |
| 409 | * @since 3.2.2-RC1 |
| 410 | */ |
| 411 | $vars = array('objects'); |
| 412 | extract($this->dispatcher->trigger_event('core.text_formatter_s9e_configure_finalize', compact($vars))); |
| 413 | |
| 414 | $parser = $objects['parser']; |
| 415 | $renderer = $objects['renderer']; |
| 416 | |
| 417 | // Cache the parser as-is |
| 418 | $this->cache->put($this->cache_key_parser, $parser); |
| 419 | |
| 420 | // We need to cache the name of the renderer's generated class |
| 421 | $renderer_data = array('class' => get_class($renderer)); |
| 422 | if (isset($censor)) |
| 423 | { |
| 424 | $renderer_data['censor'] = $censor; |
| 425 | } |
| 426 | $this->cache->put($this->cache_key_renderer, $renderer_data); |
| 427 | |
| 428 | return array('parser' => $parser, 'renderer' => $renderer); |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * Add a BBCode to given configurator |
| 433 | * |
| 434 | * @param Configurator $configurator |
| 435 | * @param string $usage |
| 436 | * @param string $template |
| 437 | * @return void |
| 438 | */ |
| 439 | protected function add_bbcode(Configurator $configurator, $usage, $template) |
| 440 | { |
| 441 | try |
| 442 | { |
| 443 | $configurator->BBCodes->addCustom($usage, new UnsafeTemplate($template)); |
| 444 | } |
| 445 | catch (\Exception $e) |
| 446 | { |
| 447 | $this->log->add('critical', ANONYMOUS, '', 'LOG_BBCODE_CONFIGURATION_ERROR', false, [$usage, $e->getMessage()]); |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | /** |
| 452 | * Configure the Autolink / Autoemail plugins used to linkify text |
| 453 | * |
| 454 | * @param Configurator $configurator |
| 455 | * @return void |
| 456 | */ |
| 457 | protected function configure_autolink(Configurator $configurator) |
| 458 | { |
| 459 | $configurator->plugins->load('Autoemail'); |
| 460 | $configurator->plugins->load('Autolink', array('matchWww' => true)); |
| 461 | |
| 462 | // Add a tag filter that creates a tag that stores and replace the |
| 463 | // content of a link created by the Autolink plugin |
| 464 | $configurator->Autolink->getTag()->filterChain |
| 465 | ->add(array($this->link_helper, 'generate_link_text_tag')) |
| 466 | ->resetParameters() |
| 467 | ->addParameterByName('tag') |
| 468 | ->addParameterByName('parser'); |
| 469 | |
| 470 | // Create a tag that will be used to display the truncated text by |
| 471 | // replacing the original content with the content of the @text attribute |
| 472 | $tag = $configurator->tags->add('LINK_TEXT'); |
| 473 | $tag->attributes->add('text'); |
| 474 | $tag->template = '<xsl:value-of select="@text"/>'; |
| 475 | |
| 476 | $board_url = generate_board_url() . '/'; |
| 477 | $tag->filterChain |
| 478 | ->add(array($this->link_helper, 'truncate_local_url')) |
| 479 | ->resetParameters() |
| 480 | ->addParameterByName('tag') |
| 481 | ->addParameterByValue($board_url); |
| 482 | $tag->filterChain |
| 483 | ->add(array($this->link_helper, 'truncate_local_url')) |
| 484 | ->resetParameters() |
| 485 | ->addParameterByName('tag') |
| 486 | ->addParameterByValue(preg_replace('(^\\w+:)', '', $board_url)); |
| 487 | $tag->filterChain |
| 488 | ->add(array($this->link_helper, 'truncate_text')) |
| 489 | ->resetParameters() |
| 490 | ->addParameterByName('tag'); |
| 491 | $tag->filterChain |
| 492 | ->add(array($this->link_helper, 'cleanup_tag')) |
| 493 | ->resetParameters() |
| 494 | ->addParameterByName('tag') |
| 495 | ->addParameterByName('parser'); |
| 496 | } |
| 497 | |
| 498 | /** |
| 499 | * Escape a literal to be used in an HTML attribute in an XSL template |
| 500 | * |
| 501 | * Escapes "HTML special chars" for obvious reasons and curly braces to avoid them |
| 502 | * being interpreted as an attribute value template |
| 503 | * |
| 504 | * @param string $value Original string |
| 505 | * @return string Escaped string |
| 506 | */ |
| 507 | protected function escape_html_attribute($value) |
| 508 | { |
| 509 | return htmlspecialchars(strtr($value, ['{' => '{{', '}' => '}}']), ENT_COMPAT | ENT_XML1, 'UTF-8'); |
| 510 | } |
| 511 | |
| 512 | /** |
| 513 | * Return the default BBCodes configuration |
| 514 | * |
| 515 | * @return array 2D array. Each element has a 'usage' key, a 'template' key, and an optional 'options' key |
| 516 | */ |
| 517 | protected function get_default_bbcodes($configurator) |
| 518 | { |
| 519 | // For each BBCode, build an associative array matching style_ids to their template |
| 520 | $templates = array(); |
| 521 | foreach ($this->data_access->get_styles_templates() as $style_id => $data) |
| 522 | { |
| 523 | foreach ($this->extract_templates($data['template']) as $bbcode_name => $template) |
| 524 | { |
| 525 | $templates[$bbcode_name][$style_id] = $template; |
| 526 | } |
| 527 | |
| 528 | // Add default templates wherever missing, or for BBCodes that were not specified in |
| 529 | // this template's bitfield. For instance, prosilver has a custom template for b but its |
| 530 | // bitfield does not enable it so the default template is used instead |
| 531 | foreach ($this->default_templates as $bbcode_name => $template) |
| 532 | { |
| 533 | if (!isset($templates[$bbcode_name][$style_id]) || !in_array($bbcode_name, $data['bbcodes'], true)) |
| 534 | { |
| 535 | $templates[$bbcode_name][$style_id] = $template; |
| 536 | } |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | // Replace custom tokens and normalize templates |
| 541 | foreach ($templates as $bbcode_name => $style_templates) |
| 542 | { |
| 543 | foreach ($style_templates as $i => $template) |
| 544 | { |
| 545 | if (isset($this->custom_tokens[$bbcode_name])) |
| 546 | { |
| 547 | $template = strtr($template, $this->custom_tokens[$bbcode_name]); |
| 548 | } |
| 549 | |
| 550 | $templates[$bbcode_name][$i] = $configurator->templateNormalizer->normalizeTemplate($template); |
| 551 | } |
| 552 | } |
| 553 | |
| 554 | $bbcodes = array(); |
| 555 | foreach ($this->default_definitions as $bbcode_name => $usage) |
| 556 | { |
| 557 | $bbcodes[$bbcode_name] = array( |
| 558 | 'usage' => $usage, |
| 559 | 'template' => $this->merge_templates($templates[$bbcode_name]), |
| 560 | ); |
| 561 | } |
| 562 | |
| 563 | return $bbcodes; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * Extract and recompose individual BBCode templates from a style's template file |
| 568 | * |
| 569 | * @param string $template Style template (bbcode.html) |
| 570 | * @return array Associative array matching BBCode names to their template |
| 571 | */ |
| 572 | protected function extract_templates($template) |
| 573 | { |
| 574 | // Capture the template fragments |
| 575 | // Allow either phpBB template or the Twig syntax |
| 576 | preg_match_all('#<!-- BEGIN (.*?) -->(.*?)<!-- END .*? -->#s', $template, $matches, PREG_SET_ORDER) ?: |
| 577 | preg_match_all('#{% for (.*?) in .*? %}(.*?){% endfor %}#s', $template, $matches, PREG_SET_ORDER); |
| 578 | |
| 579 | $fragments = array(); |
| 580 | foreach ($matches as $match) |
| 581 | { |
| 582 | // Normalize the whitespace |
| 583 | $fragment = preg_replace('#>\\n\\t*<#', '><', trim($match[2])); |
| 584 | |
| 585 | $fragments[$match[1]] = $fragment; |
| 586 | } |
| 587 | |
| 588 | // Automatically recompose templates split between *_open and *_close |
| 589 | foreach ($fragments as $fragment_name => $fragment) |
| 590 | { |
| 591 | if (preg_match('#^(\\w+)_close$#', $fragment_name, $match)) |
| 592 | { |
| 593 | $bbcode_name = $match[1]; |
| 594 | |
| 595 | if (isset($fragments[$bbcode_name . '_open'])) |
| 596 | { |
| 597 | $templates[$bbcode_name] = $fragments[$bbcode_name . '_open'] . '<xsl:apply-templates/>' . $fragment; |
| 598 | } |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | // Manually recompose and overwrite irregular templates |
| 603 | $templates['list'] = |
| 604 | '<xsl:choose> |
| 605 | <xsl:when test="not(@type)"> |
| 606 | ' . $fragments['ulist_open_default'] . '<xsl:apply-templates/>' . $fragments['ulist_close'] . ' |
| 607 | </xsl:when> |
| 608 | <xsl:when test="contains(\'upperlowerdecim\',substring(@type,1,5))"> |
| 609 | ' . $fragments['olist_open'] . '<xsl:apply-templates/>' . $fragments['olist_close'] . ' |
| 610 | </xsl:when> |
| 611 | <xsl:otherwise> |
| 612 | ' . $fragments['ulist_open'] . '<xsl:apply-templates/>' . $fragments['ulist_close'] . ' |
| 613 | </xsl:otherwise> |
| 614 | </xsl:choose>'; |
| 615 | |
| 616 | $templates['li'] = $fragments['listitem'] . '<xsl:apply-templates/>' . $fragments['listitem_close']; |
| 617 | |
| 618 | // Replace the regular quote template with the extended quote template if available |
| 619 | if (isset($fragments['quote_extended'])) |
| 620 | { |
| 621 | $templates['quote'] = $fragments['quote_extended']; |
| 622 | } |
| 623 | |
| 624 | // The [attachment] BBCode uses the inline_attachment template to output a comment that |
| 625 | // is post-processed by parse_attachments() |
| 626 | $templates['attachment'] = $fragments['inline_attachment_open'] . '<xsl:comment> ia<xsl:value-of select="@index"/> </xsl:comment><xsl:value-of select="@filename"/><xsl:comment> ia<xsl:value-of select="@index"/> </xsl:comment>' . $fragments['inline_attachment_close']; |
| 627 | |
| 628 | // Add fragments as templates |
| 629 | foreach ($fragments as $fragment_name => $fragment) |
| 630 | { |
| 631 | if (preg_match('#^\\w+$#', $fragment_name)) |
| 632 | { |
| 633 | $templates[$fragment_name] = $fragment; |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | // Keep only templates that are named after an existing BBCode |
| 638 | $templates = array_intersect_key($templates, $this->default_definitions); |
| 639 | |
| 640 | return $templates; |
| 641 | } |
| 642 | |
| 643 | /** |
| 644 | * Merge the templates from any number of styles into one BBCode template |
| 645 | * |
| 646 | * When multiple templates are available for the same BBCode (because of multiple styles) we |
| 647 | * merge them into a single template that uses an xsl:choose construct that determines which |
| 648 | * style to use at rendering time. |
| 649 | * |
| 650 | * @param array $style_templates Associative array matching style_ids to their template |
| 651 | * @return string |
| 652 | */ |
| 653 | protected function merge_templates(array $style_templates) |
| 654 | { |
| 655 | // Return the template as-is if there's only one style or all styles share the same template |
| 656 | if (count(array_unique($style_templates)) === 1) |
| 657 | { |
| 658 | return end($style_templates); |
| 659 | } |
| 660 | |
| 661 | // Group identical templates together |
| 662 | $grouped_templates = array(); |
| 663 | foreach ($style_templates as $style_id => $style_template) |
| 664 | { |
| 665 | $grouped_templates[$style_template][] = '$STYLE_ID=' . $style_id; |
| 666 | } |
| 667 | |
| 668 | // Sort templates by frequency descending |
| 669 | $templates_cnt = array_map('sizeof', $grouped_templates); |
| 670 | array_multisort($grouped_templates, $templates_cnt); |
| 671 | |
| 672 | // Remove the most frequent template from the list; It becomes the default |
| 673 | reset($grouped_templates); |
| 674 | $default_template = key($grouped_templates); |
| 675 | unset($grouped_templates[$default_template]); |
| 676 | |
| 677 | // Build an xsl:choose switch |
| 678 | $template = '<xsl:choose>'; |
| 679 | foreach ($grouped_templates as $style_template => $exprs) |
| 680 | { |
| 681 | $template .= '<xsl:when test="' . implode(' or ', $exprs) . '">' . $style_template . '</xsl:when>'; |
| 682 | } |
| 683 | $template .= '<xsl:otherwise>' . $default_template . '</xsl:otherwise></xsl:choose>'; |
| 684 | |
| 685 | return $template; |
| 686 | } |
| 687 | } |