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1 <?php 2 3 /** 4 * SimplePie 5 * 6 * A PHP-Based RSS and Atom Feed Framework. 7 * Takes the hard work out of managing a complete RSS/Atom solution. 8 * 9 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without modification, are 13 * permitted provided that the following conditions are met: 14 * 15 * * Redistributions of source code must retain the above copyright notice, this list of 16 * conditions and the following disclaimer. 17 * 18 * * Redistributions in binary form must reproduce the above copyright notice, this list 19 * of conditions and the following disclaimer in the documentation and/or other materials 20 * provided with the distribution. 21 * 22 * * Neither the name of the SimplePie Team nor the names of its contributors may be used 23 * to endorse or promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS 27 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 28 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS 29 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 33 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 * @package SimplePie 37 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue 38 * @author Ryan Parman 39 * @author Sam Sneddon 40 * @author Ryan McCue 41 * @link http://simplepie.org/ SimplePie 42 * @license http://www.opensource.org/licenses/bsd-license.php BSD License 43 */ 44 45 namespace SimplePie; 46 47 use SimplePie\XML\Declaration\Parser as DeclarationParser; 48 49 /** 50 * Parses XML into something sane 51 * 52 * 53 * This class can be overloaded with {@see \SimplePie\SimplePie::set_parser_class()} 54 * 55 * @package SimplePie 56 * @subpackage Parsing 57 */ 58 class Parser implements RegistryAware 59 { 60 public $error_code; 61 public $error_string; 62 public $current_line; 63 public $current_column; 64 public $current_byte; 65 public $separator = ' '; 66 public $namespace = ['']; 67 public $element = ['']; 68 public $xml_base = ['']; 69 public $xml_base_explicit = [false]; 70 public $xml_lang = ['']; 71 public $data = []; 72 public $datas = [[]]; 73 public $current_xhtml_construct = -1; 74 public $encoding; 75 protected $registry; 76 77 public function set_registry(\SimplePie\Registry $registry)/* : void */ 78 { 79 $this->registry = $registry; 80 } 81 82 public function parse(&$data, $encoding, $url = '') 83 { 84 if (class_exists('DOMXpath') && function_exists('Mf2\parse')) { 85 $doc = new \DOMDocument(); 86 @$doc->loadHTML($data); 87 $xpath = new \DOMXpath($doc); 88 // Check for both h-feed and h-entry, as both a feed with no entries 89 // and a list of entries without an h-feed wrapper are both valid. 90 $query = '//*[contains(concat(" ", @class, " "), " h-feed ") or '. 91 'contains(concat(" ", @class, " "), " h-entry ")]'; 92 $result = $xpath->query($query); 93 if ($result->length !== 0) { 94 return $this->parse_microformats($data, $url); 95 } 96 } 97 98 // Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character 99 if (strtoupper($encoding) === 'US-ASCII') { 100 $this->encoding = 'UTF-8'; 101 } else { 102 $this->encoding = $encoding; 103 } 104 105 // Strip BOM: 106 // UTF-32 Big Endian BOM 107 if (substr($data, 0, 4) === "\x00\x00\xFE\xFF") { 108 $data = substr($data, 4); 109 } 110 // UTF-32 Little Endian BOM 111 elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00") { 112 $data = substr($data, 4); 113 } 114 // UTF-16 Big Endian BOM 115 elseif (substr($data, 0, 2) === "\xFE\xFF") { 116 $data = substr($data, 2); 117 } 118 // UTF-16 Little Endian BOM 119 elseif (substr($data, 0, 2) === "\xFF\xFE") { 120 $data = substr($data, 2); 121 } 122 // UTF-8 BOM 123 elseif (substr($data, 0, 3) === "\xEF\xBB\xBF") { 124 $data = substr($data, 3); 125 } 126 127 if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false) { 128 $declaration = $this->registry->create(DeclarationParser::class, [substr($data, 5, $pos - 5)]); 129 if ($declaration->parse()) { 130 $data = substr($data, $pos + 2); 131 $data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' ."\n". $this->declare_html_entities() . $data; 132 } else { 133 $this->error_string = 'SimplePie bug! Please report this!'; 134 return false; 135 } 136 } 137 138 $return = true; 139 140 static $xml_is_sane = null; 141 if ($xml_is_sane === null) { 142 $parser_check = xml_parser_create(); 143 xml_parse_into_struct($parser_check, '<foo>&</foo>', $values); 144 xml_parser_free($parser_check); 145 $xml_is_sane = isset($values[0]['value']); 146 } 147 148 // Create the parser 149 if ($xml_is_sane) { 150 $xml = xml_parser_create_ns($this->encoding, $this->separator); 151 xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1); 152 xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0); 153 xml_set_character_data_handler($xml, [$this, 'cdata']); 154 xml_set_element_handler($xml, [$this, 'tag_open'], [$this, 'tag_close']); 155 156 // Parse! 157 $wrapper = @is_writable(sys_get_temp_dir()) ? 'php://temp' : 'php://memory'; 158 if (($stream = fopen($wrapper, 'r+')) && 159 fwrite($stream, $data) && 160 rewind($stream)) { 161 //Parse by chunks not to use too much memory 162 do { 163 $stream_data = fread($stream, 1048576); 164 if (!xml_parse($xml, $stream_data === false ? '' : $stream_data, feof($stream))) { 165 $this->error_code = xml_get_error_code($xml); 166 $this->error_string = xml_error_string($this->error_code); 167 $return = false; 168 break; 169 } 170 } while (!feof($stream)); 171 fclose($stream); 172 } else { 173 $return = false; 174 } 175 176 $this->current_line = xml_get_current_line_number($xml); 177 $this->current_column = xml_get_current_column_number($xml); 178 $this->current_byte = xml_get_current_byte_index($xml); 179 xml_parser_free($xml); 180 return $return; 181 } 182 183 libxml_clear_errors(); 184 $xml = new \XMLReader(); 185 $xml->xml($data); 186 while (@$xml->read()) { 187 switch ($xml->nodeType) { 188 case constant('XMLReader::END_ELEMENT'): 189 if ($xml->namespaceURI !== '') { 190 $tagName = $xml->namespaceURI . $this->separator . $xml->localName; 191 } else { 192 $tagName = $xml->localName; 193 } 194 $this->tag_close(null, $tagName); 195 break; 196 case constant('XMLReader::ELEMENT'): 197 $empty = $xml->isEmptyElement; 198 if ($xml->namespaceURI !== '') { 199 $tagName = $xml->namespaceURI . $this->separator . $xml->localName; 200 } else { 201 $tagName = $xml->localName; 202 } 203 $attributes = []; 204 while ($xml->moveToNextAttribute()) { 205 if ($xml->namespaceURI !== '') { 206 $attrName = $xml->namespaceURI . $this->separator . $xml->localName; 207 } else { 208 $attrName = $xml->localName; 209 } 210 $attributes[$attrName] = $xml->value; 211 } 212 $this->tag_open(null, $tagName, $attributes); 213 if ($empty) { 214 $this->tag_close(null, $tagName); 215 } 216 break; 217 case constant('XMLReader::TEXT'): 218 219 case constant('XMLReader::CDATA'): 220 $this->cdata(null, $xml->value); 221 break; 222 } 223 } 224 if ($error = libxml_get_last_error()) { 225 $this->error_code = $error->code; 226 $this->error_string = $error->message; 227 $this->current_line = $error->line; 228 $this->current_column = $error->column; 229 return false; 230 } 231 232 return true; 233 } 234 235 public function get_error_code() 236 { 237 return $this->error_code; 238 } 239 240 public function get_error_string() 241 { 242 return $this->error_string; 243 } 244 245 public function get_current_line() 246 { 247 return $this->current_line; 248 } 249 250 public function get_current_column() 251 { 252 return $this->current_column; 253 } 254 255 public function get_current_byte() 256 { 257 return $this->current_byte; 258 } 259 260 public function get_data() 261 { 262 return $this->data; 263 } 264 265 public function tag_open($parser, $tag, $attributes) 266 { 267 [$this->namespace[], $this->element[]] = $this->split_ns($tag); 268 269 $attribs = []; 270 foreach ($attributes as $name => $value) { 271 [$attrib_namespace, $attribute] = $this->split_ns($name); 272 $attribs[$attrib_namespace][$attribute] = $value; 273 } 274 275 if (isset($attribs[\SimplePie\SimplePie::NAMESPACE_XML]['base'])) { 276 $base = $this->registry->call(Misc::class, 'absolutize_url', [$attribs[\SimplePie\SimplePie::NAMESPACE_XML]['base'], end($this->xml_base)]); 277 if ($base !== false) { 278 $this->xml_base[] = $base; 279 $this->xml_base_explicit[] = true; 280 } 281 } else { 282 $this->xml_base[] = end($this->xml_base); 283 $this->xml_base_explicit[] = end($this->xml_base_explicit); 284 } 285 286 if (isset($attribs[\SimplePie\SimplePie::NAMESPACE_XML]['lang'])) { 287 $this->xml_lang[] = $attribs[\SimplePie\SimplePie::NAMESPACE_XML]['lang']; 288 } else { 289 $this->xml_lang[] = end($this->xml_lang); 290 } 291 292 if ($this->current_xhtml_construct >= 0) { 293 $this->current_xhtml_construct++; 294 if (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_XHTML) { 295 $this->data['data'] .= '<' . end($this->element); 296 if (isset($attribs[''])) { 297 foreach ($attribs[''] as $name => $value) { 298 $this->data['data'] .= ' ' . $name . '="' . htmlspecialchars($value, ENT_COMPAT, $this->encoding) . '"'; 299 } 300 } 301 $this->data['data'] .= '>'; 302 } 303 } else { 304 $this->datas[] = &$this->data; 305 $this->data = &$this->data['child'][end($this->namespace)][end($this->element)][]; 306 $this->data = ['data' => '', 'attribs' => $attribs, 'xml_base' => end($this->xml_base), 'xml_base_explicit' => end($this->xml_base_explicit), 'xml_lang' => end($this->xml_lang)]; 307 if ((end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_ATOM_03 && in_array(end($this->element), ['title', 'tagline', 'copyright', 'info', 'summary', 'content']) && isset($attribs['']['mode']) && $attribs['']['mode'] === 'xml') 308 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_ATOM_10 && in_array(end($this->element), ['rights', 'subtitle', 'summary', 'info', 'title', 'content']) && isset($attribs['']['type']) && $attribs['']['type'] === 'xhtml') 309 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_RSS_20 && in_array(end($this->element), ['title'])) 310 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_RSS_090 && in_array(end($this->element), ['title'])) 311 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_RSS_10 && in_array(end($this->element), ['title']))) { 312 $this->current_xhtml_construct = 0; 313 } 314 } 315 } 316 317 public function cdata($parser, $cdata) 318 { 319 if ($this->current_xhtml_construct >= 0) { 320 $this->data['data'] .= htmlspecialchars($cdata, ENT_QUOTES, $this->encoding); 321 } else { 322 $this->data['data'] .= $cdata; 323 } 324 } 325 326 public function tag_close($parser, $tag) 327 { 328 if ($this->current_xhtml_construct >= 0) { 329 $this->current_xhtml_construct--; 330 if (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_XHTML && !in_array(end($this->element), ['area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param'])) { 331 $this->data['data'] .= '</' . end($this->element) . '>'; 332 } 333 } 334 if ($this->current_xhtml_construct === -1) { 335 $this->data = &$this->datas[count($this->datas) - 1]; 336 array_pop($this->datas); 337 } 338 339 array_pop($this->element); 340 array_pop($this->namespace); 341 array_pop($this->xml_base); 342 array_pop($this->xml_base_explicit); 343 array_pop($this->xml_lang); 344 } 345 346 public function split_ns($string) 347 { 348 static $cache = []; 349 if (!isset($cache[$string])) { 350 if ($pos = strpos($string, $this->separator)) { 351 static $separator_length; 352 if (!$separator_length) { 353 $separator_length = strlen($this->separator); 354 } 355 $namespace = substr($string, 0, $pos); 356 $local_name = substr($string, $pos + $separator_length); 357 if (strtolower($namespace) === \SimplePie\SimplePie::NAMESPACE_ITUNES) { 358 $namespace = \SimplePie\SimplePie::NAMESPACE_ITUNES; 359 } 360 361 // Normalize the Media RSS namespaces 362 if ($namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG || 363 $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG2 || 364 $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG3 || 365 $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG4 || 366 $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG5) { 367 $namespace = \SimplePie\SimplePie::NAMESPACE_MEDIARSS; 368 } 369 $cache[$string] = [$namespace, $local_name]; 370 } else { 371 $cache[$string] = ['', $string]; 372 } 373 } 374 return $cache[$string]; 375 } 376 377 private function parse_hcard($data, $category = false) 378 { 379 $name = ''; 380 $link = ''; 381 // Check if h-card is set and pass that information on in the link. 382 if (isset($data['type']) && in_array('h-card', $data['type'])) { 383 if (isset($data['properties']['name'][0])) { 384 $name = $data['properties']['name'][0]; 385 } 386 if (isset($data['properties']['url'][0])) { 387 $link = $data['properties']['url'][0]; 388 if ($name === '') { 389 $name = $link; 390 } else { 391 // can't have commas in categories. 392 $name = str_replace(',', '', $name); 393 } 394 $person_tag = $category ? '<span class="person-tag"></span>' : ''; 395 return '<a class="h-card" href="'.$link.'">'.$person_tag.$name.'</a>'; 396 } 397 } 398 return $data['value'] ?? ''; 399 } 400 401 private function parse_microformats(&$data, $url) 402 { 403 $feed_title = ''; 404 $feed_author = null; 405 $author_cache = []; 406 $items = []; 407 $entries = []; 408 $mf = \Mf2\parse($data, $url); 409 // First look for an h-feed. 410 $h_feed = []; 411 foreach ($mf['items'] as $mf_item) { 412 if (in_array('h-feed', $mf_item['type'])) { 413 $h_feed = $mf_item; 414 break; 415 } 416 // Also look for h-feed or h-entry in the children of each top level item. 417 if (!isset($mf_item['children'][0]['type'])) { 418 continue; 419 } 420 if (in_array('h-feed', $mf_item['children'][0]['type'])) { 421 $h_feed = $mf_item['children'][0]; 422 // In this case the parent of the h-feed may be an h-card, so use it as 423 // the feed_author. 424 if (in_array('h-card', $mf_item['type'])) { 425 $feed_author = $mf_item; 426 } 427 break; 428 } elseif (in_array('h-entry', $mf_item['children'][0]['type'])) { 429 $entries = $mf_item['children']; 430 // In this case the parent of the h-entry list may be an h-card, so use 431 // it as the feed_author. 432 if (in_array('h-card', $mf_item['type'])) { 433 $feed_author = $mf_item; 434 } 435 break; 436 } 437 } 438 if (isset($h_feed['children'])) { 439 $entries = $h_feed['children']; 440 // Also set the feed title and store author from the h-feed if available. 441 if (isset($mf['items'][0]['properties']['name'][0])) { 442 $feed_title = $mf['items'][0]['properties']['name'][0]; 443 } 444 if (isset($mf['items'][0]['properties']['author'][0])) { 445 $feed_author = $mf['items'][0]['properties']['author'][0]; 446 } 447 } elseif (count($entries) === 0) { 448 $entries = $mf['items']; 449 } 450 for ($i = 0; $i < count($entries); $i++) { 451 $entry = $entries[$i]; 452 if (in_array('h-entry', $entry['type'])) { 453 $item = []; 454 $title = ''; 455 $description = ''; 456 if (isset($entry['properties']['url'][0])) { 457 $link = $entry['properties']['url'][0]; 458 if (isset($link['value'])) { 459 $link = $link['value']; 460 } 461 $item['link'] = [['data' => $link]]; 462 } 463 if (isset($entry['properties']['uid'][0])) { 464 $guid = $entry['properties']['uid'][0]; 465 if (isset($guid['value'])) { 466 $guid = $guid['value']; 467 } 468 $item['guid'] = [['data' => $guid]]; 469 } 470 if (isset($entry['properties']['name'][0])) { 471 $title = $entry['properties']['name'][0]; 472 if (isset($title['value'])) { 473 $title = $title['value']; 474 } 475 $item['title'] = [['data' => $title]]; 476 } 477 if (isset($entry['properties']['author'][0]) || isset($feed_author)) { 478 // author is a special case, it can be plain text or an h-card array. 479 // If it's plain text it can also be a url that should be followed to 480 // get the actual h-card. 481 $author = $entry['properties']['author'][0] ?? $feed_author; 482 if (!is_string($author)) { 483 $author = $this->parse_hcard($author); 484 } elseif (strpos($author, 'http') === 0) { 485 if (isset($author_cache[$author])) { 486 $author = $author_cache[$author]; 487 } else { 488 $mf = \Mf2\fetch($author); 489 foreach ($mf['items'] as $hcard) { 490 // Only interested in an h-card by itself in this case. 491 if (!in_array('h-card', $hcard['type'])) { 492 continue; 493 } 494 // It must have a url property matching what we fetched. 495 if (!isset($hcard['properties']['url']) || 496 !(in_array($author, $hcard['properties']['url']))) { 497 continue; 498 } 499 // Save parse_hcard the trouble of finding the correct url. 500 $hcard['properties']['url'][0] = $author; 501 // Cache this h-card for the next h-entry to check. 502 $author_cache[$author] = $this->parse_hcard($hcard); 503 $author = $author_cache[$author]; 504 break; 505 } 506 } 507 } 508 $item['author'] = [['data' => $author]]; 509 } 510 if (isset($entry['properties']['photo'][0])) { 511 // If a photo is also in content, don't need to add it again here. 512 $content = ''; 513 if (isset($entry['properties']['content'][0]['html'])) { 514 $content = $entry['properties']['content'][0]['html']; 515 } 516 $photo_list = []; 517 for ($j = 0; $j < count($entry['properties']['photo']); $j++) { 518 $photo = $entry['properties']['photo'][$j]; 519 if (!empty($photo) && strpos($content, $photo) === false) { 520 $photo_list[] = $photo; 521 } 522 } 523 // When there's more than one photo show the first and use a lightbox. 524 // Need a permanent, unique name for the image set, but don't have 525 // anything unique except for the content itself, so use that. 526 $count = count($photo_list); 527 if ($count > 1) { 528 $image_set_id = preg_replace('/[[:^alnum:]]/', '', $photo_list[0]); 529 $description = '<p>'; 530 for ($j = 0; $j < $count; $j++) { 531 $hidden = $j === 0 ? '' : 'class="hidden" '; 532 $description .= '<a href="'.$photo_list[$j].'" '.$hidden. 533 'data-lightbox="image-set-'.$image_set_id.'">'. 534 '<img src="'.$photo_list[$j].'"></a>'; 535 } 536 $description .= '<br><b>'.$count.' photos</b></p>'; 537 } elseif ($count == 1) { 538 $description = '<p><img src="'.$photo_list[0].'"></p>'; 539 } 540 } 541 if (isset($entry['properties']['content'][0]['html'])) { 542 // e-content['value'] is the same as p-name when they are on the same 543 // element. Use this to replace title with a strip_tags version so 544 // that alt text from images is not included in the title. 545 if ($entry['properties']['content'][0]['value'] === $title) { 546 $title = strip_tags($entry['properties']['content'][0]['html']); 547 $item['title'] = [['data' => $title]]; 548 } 549 $description .= $entry['properties']['content'][0]['html']; 550 if (isset($entry['properties']['in-reply-to'][0])) { 551 $in_reply_to = ''; 552 if (is_string($entry['properties']['in-reply-to'][0])) { 553 $in_reply_to = $entry['properties']['in-reply-to'][0]; 554 } elseif (isset($entry['properties']['in-reply-to'][0]['value'])) { 555 $in_reply_to = $entry['properties']['in-reply-to'][0]['value']; 556 } 557 if ($in_reply_to !== '') { 558 $description .= '<p><span class="in-reply-to"></span> '. 559 '<a href="'.$in_reply_to.'">'.$in_reply_to.'</a><p>'; 560 } 561 } 562 $item['description'] = [['data' => $description]]; 563 } 564 if (isset($entry['properties']['category'])) { 565 $category_csv = ''; 566 // Categories can also contain h-cards. 567 foreach ($entry['properties']['category'] as $category) { 568 if ($category_csv !== '') { 569 $category_csv .= ', '; 570 } 571 if (is_string($category)) { 572 // Can't have commas in categories. 573 $category_csv .= str_replace(',', '', $category); 574 } else { 575 $category_csv .= $this->parse_hcard($category, true); 576 } 577 } 578 $item['category'] = [['data' => $category_csv]]; 579 } 580 if (isset($entry['properties']['published'][0])) { 581 $timestamp = strtotime($entry['properties']['published'][0]); 582 $pub_date = date('F j Y g:ia', $timestamp).' GMT'; 583 $item['pubDate'] = [['data' => $pub_date]]; 584 } 585 // The title and description are set to the empty string to represent 586 // a deleted item (which also makes it an invalid rss item). 587 if (isset($entry['properties']['deleted'][0])) { 588 $item['title'] = [['data' => '']]; 589 $item['description'] = [['data' => '']]; 590 } 591 $items[] = ['child' => ['' => $item]]; 592 } 593 } 594 // Mimic RSS data format when storing microformats. 595 $link = [['data' => $url]]; 596 $image = ''; 597 if (!is_string($feed_author) && 598 isset($feed_author['properties']['photo'][0])) { 599 $image = [['child' => ['' => ['url' => 600 [['data' => $feed_author['properties']['photo'][0]]]]]]]; 601 } 602 // Use the name given for the h-feed, or get the title from the html. 603 if ($feed_title !== '') { 604 $feed_title = [['data' => htmlspecialchars($feed_title)]]; 605 } elseif ($position = strpos($data, '<title>')) { 606 $start = $position < 200 ? 0 : $position - 200; 607 $check = substr($data, $start, 400); 608 $matches = []; 609 if (preg_match('/<title>(.+)<\/title>/', $check, $matches)) { 610 $feed_title = [['data' => htmlspecialchars($matches[1])]]; 611 } 612 } 613 $channel = ['channel' => [['child' => ['' => 614 ['link' => $link, 'image' => $image, 'title' => $feed_title, 615 'item' => $items]]]]]; 616 $rss = [['attribs' => ['' => ['version' => '2.0']], 617 'child' => ['' => $channel]]]; 618 $this->data = ['child' => ['' => ['rss' => $rss]]]; 619 return true; 620 } 621 622 private function declare_html_entities() 623 { 624 // This is required because the RSS specification says that entity-encoded 625 // html is allowed, but the xml specification says they must be declared. 626 return '<!DOCTYPE html [ <!ENTITY nbsp " "> <!ENTITY iexcl "¡"> <!ENTITY cent "¢"> <!ENTITY pound "£"> <!ENTITY curren "¤"> <!ENTITY yen "¥"> <!ENTITY brvbar "¦"> <!ENTITY sect "§"> <!ENTITY uml "¨"> <!ENTITY copy "©"> <!ENTITY ordf "ª"> <!ENTITY laquo "«"> <!ENTITY not "¬"> <!ENTITY shy "­"> <!ENTITY reg "®"> <!ENTITY macr "¯"> <!ENTITY deg "°"> <!ENTITY plusmn "±"> <!ENTITY sup2 "²"> <!ENTITY sup3 "³"> <!ENTITY acute "´"> <!ENTITY micro "µ"> <!ENTITY para "¶"> <!ENTITY middot "·"> <!ENTITY cedil "¸"> <!ENTITY sup1 "¹"> <!ENTITY ordm "º"> <!ENTITY raquo "»"> <!ENTITY frac14 "¼"> <!ENTITY frac12 "½"> <!ENTITY frac34 "¾"> <!ENTITY iquest "¿"> <!ENTITY Agrave "À"> <!ENTITY Aacute "Á"> <!ENTITY Acirc "Â"> <!ENTITY Atilde "Ã"> <!ENTITY Auml "Ä"> <!ENTITY Aring "Å"> <!ENTITY AElig "Æ"> <!ENTITY Ccedil "Ç"> <!ENTITY Egrave "È"> <!ENTITY Eacute "É"> <!ENTITY Ecirc "Ê"> <!ENTITY Euml "Ë"> <!ENTITY Igrave "Ì"> <!ENTITY Iacute "Í"> <!ENTITY Icirc "Î"> <!ENTITY Iuml "Ï"> <!ENTITY ETH "Ð"> <!ENTITY Ntilde "Ñ"> <!ENTITY Ograve "Ò"> <!ENTITY Oacute "Ó"> <!ENTITY Ocirc "Ô"> <!ENTITY Otilde "Õ"> <!ENTITY Ouml "Ö"> <!ENTITY times "×"> <!ENTITY Oslash "Ø"> <!ENTITY Ugrave "Ù"> <!ENTITY Uacute "Ú"> <!ENTITY Ucirc "Û"> <!ENTITY Uuml "Ü"> <!ENTITY Yacute "Ý"> <!ENTITY THORN "Þ"> <!ENTITY szlig "ß"> <!ENTITY agrave "à"> <!ENTITY aacute "á"> <!ENTITY acirc "â"> <!ENTITY atilde "ã"> <!ENTITY auml "ä"> <!ENTITY aring "å"> <!ENTITY aelig "æ"> <!ENTITY ccedil "ç"> <!ENTITY egrave "è"> <!ENTITY eacute "é"> <!ENTITY ecirc "ê"> <!ENTITY euml "ë"> <!ENTITY igrave "ì"> <!ENTITY iacute "í"> <!ENTITY icirc "î"> <!ENTITY iuml "ï"> <!ENTITY eth "ð"> <!ENTITY ntilde "ñ"> <!ENTITY ograve "ò"> <!ENTITY oacute "ó"> <!ENTITY ocirc "ô"> <!ENTITY otilde "õ"> <!ENTITY ouml "ö"> <!ENTITY divide "÷"> <!ENTITY oslash "ø"> <!ENTITY ugrave "ù"> <!ENTITY uacute "ú"> <!ENTITY ucirc "û"> <!ENTITY uuml "ü"> <!ENTITY yacute "ý"> <!ENTITY thorn "þ"> <!ENTITY yuml "ÿ"> <!ENTITY OElig "Œ"> <!ENTITY oelig "œ"> <!ENTITY Scaron "Š"> <!ENTITY scaron "š"> <!ENTITY Yuml "Ÿ"> <!ENTITY fnof "ƒ"> <!ENTITY circ "ˆ"> <!ENTITY tilde "˜"> <!ENTITY Alpha "Α"> <!ENTITY Beta "Β"> <!ENTITY Gamma "Γ"> <!ENTITY Epsilon "Ε"> <!ENTITY Zeta "Ζ"> <!ENTITY Eta "Η"> <!ENTITY Theta "Θ"> <!ENTITY Iota "Ι"> <!ENTITY Kappa "Κ"> <!ENTITY Lambda "Λ"> <!ENTITY Mu "Μ"> <!ENTITY Nu "Ν"> <!ENTITY Xi "Ξ"> <!ENTITY Omicron "Ο"> <!ENTITY Pi "Π"> <!ENTITY Rho "Ρ"> <!ENTITY Sigma "Σ"> <!ENTITY Tau "Τ"> <!ENTITY Upsilon "Υ"> <!ENTITY Phi "Φ"> <!ENTITY Chi "Χ"> <!ENTITY Psi "Ψ"> <!ENTITY Omega "Ω"> <!ENTITY alpha "α"> <!ENTITY beta "β"> <!ENTITY gamma "γ"> <!ENTITY delta "δ"> <!ENTITY epsilon "ε"> <!ENTITY zeta "ζ"> <!ENTITY eta "η"> <!ENTITY theta "θ"> <!ENTITY iota "ι"> <!ENTITY kappa "κ"> <!ENTITY lambda "λ"> <!ENTITY mu "μ"> <!ENTITY nu "ν"> <!ENTITY xi "ξ"> <!ENTITY omicron "ο"> <!ENTITY pi "π"> <!ENTITY rho "ρ"> <!ENTITY sigmaf "ς"> <!ENTITY sigma "σ"> <!ENTITY tau "τ"> <!ENTITY upsilon "υ"> <!ENTITY phi "φ"> <!ENTITY chi "χ"> <!ENTITY psi "ψ"> <!ENTITY omega "ω"> <!ENTITY thetasym "ϑ"> <!ENTITY upsih "ϒ"> <!ENTITY piv "ϖ"> <!ENTITY ensp " "> <!ENTITY emsp " "> <!ENTITY thinsp " "> <!ENTITY zwnj "‌"> <!ENTITY zwj "‍"> <!ENTITY lrm "‎"> <!ENTITY rlm "‏"> <!ENTITY ndash "–"> <!ENTITY mdash "—"> <!ENTITY lsquo "‘"> <!ENTITY rsquo "’"> <!ENTITY sbquo "‚"> <!ENTITY ldquo "“"> <!ENTITY rdquo "”"> <!ENTITY bdquo "„"> <!ENTITY dagger "†"> <!ENTITY Dagger "‡"> <!ENTITY bull "•"> <!ENTITY hellip "…"> <!ENTITY permil "‰"> <!ENTITY prime "′"> <!ENTITY Prime "″"> <!ENTITY lsaquo "‹"> <!ENTITY rsaquo "›"> <!ENTITY oline "‾"> <!ENTITY frasl "⁄"> <!ENTITY euro "€"> <!ENTITY image "ℑ"> <!ENTITY weierp "℘"> <!ENTITY real "ℜ"> <!ENTITY trade "™"> <!ENTITY alefsym "ℵ"> <!ENTITY larr "←"> <!ENTITY uarr "↑"> <!ENTITY rarr "→"> <!ENTITY darr "↓"> <!ENTITY harr "↔"> <!ENTITY crarr "↵"> <!ENTITY lArr "⇐"> <!ENTITY uArr "⇑"> <!ENTITY rArr "⇒"> <!ENTITY dArr "⇓"> <!ENTITY hArr "⇔"> <!ENTITY forall "∀"> <!ENTITY part "∂"> <!ENTITY exist "∃"> <!ENTITY empty "∅"> <!ENTITY nabla "∇"> <!ENTITY isin "∈"> <!ENTITY notin "∉"> <!ENTITY ni "∋"> <!ENTITY prod "∏"> <!ENTITY sum "∑"> <!ENTITY minus "−"> <!ENTITY lowast "∗"> <!ENTITY radic "√"> <!ENTITY prop "∝"> <!ENTITY infin "∞"> <!ENTITY ang "∠"> <!ENTITY and "∧"> <!ENTITY or "∨"> <!ENTITY cap "∩"> <!ENTITY cup "∪"> <!ENTITY int "∫"> <!ENTITY there4 "∴"> <!ENTITY sim "∼"> <!ENTITY cong "≅"> <!ENTITY asymp "≈"> <!ENTITY ne "≠"> <!ENTITY equiv "≡"> <!ENTITY le "≤"> <!ENTITY ge "≥"> <!ENTITY sub "⊂"> <!ENTITY sup "⊃"> <!ENTITY nsub "⊄"> <!ENTITY sube "⊆"> <!ENTITY supe "⊇"> <!ENTITY oplus "⊕"> <!ENTITY otimes "⊗"> <!ENTITY perp "⊥"> <!ENTITY sdot "⋅"> <!ENTITY lceil "⌈"> <!ENTITY rceil "⌉"> <!ENTITY lfloor "⌊"> <!ENTITY rfloor "⌋"> <!ENTITY lang "〈"> <!ENTITY rang "〉"> <!ENTITY loz "◊"> <!ENTITY spades "♠"> <!ENTITY clubs "♣"> <!ENTITY hearts "♥"> <!ENTITY diams "♦"> ]>'; 627 } 628 } 629 630 class_alias('SimplePie\Parser', 'SimplePie_Parser');
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