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wp/wp-includes/SimplePie/Parser.php
changeset 16 a86126ab1dd4
parent 0 d970ebf37754
child 19 3d72ae0968f4
equal deleted inserted replaced
15:3d4e9c994f10 16:a86126ab1dd4 
     3  * SimplePie
 
     3  * SimplePie
 
     4  *
 
     4  *
 
     5  * A PHP-Based RSS and Atom Feed Framework.
 
     5  * A PHP-Based RSS and Atom Feed Framework.
 
     6  * Takes the hard work out of managing a complete RSS/Atom solution.
 
     6  * Takes the hard work out of managing a complete RSS/Atom solution.
 
     7  *
 
     7  *
 
     8  * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
 
     8  * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
 
     9  * All rights reserved.
 
     9  * All rights reserved.
 
    10  *
 
    10  *
 
    11  * Redistribution and use in source and binary forms, with or without modification, are
 
    11  * Redistribution and use in source and binary forms, with or without modification, are
 
    12  * permitted provided that the following conditions are met:
 
    12  * permitted provided that the following conditions are met:
 
    13  *
 
    13  *
 
    31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 
    31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 
    32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 
    32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 
    33  * POSSIBILITY OF SUCH DAMAGE.
 
    33  * POSSIBILITY OF SUCH DAMAGE.
 
    34  *
 
    34  *
 
    35  * @package SimplePie
 
    35  * @package SimplePie
 
    36  * @version 1.3.1
 
    36  * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
 
    37  * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
 
       
    38  * @author Ryan Parman
 
    37  * @author Ryan Parman
 
    39  * @author Geoffrey Sneddon
 
    38  * @author Sam Sneddon
 
    40  * @author Ryan McCue
 
    39  * @author Ryan McCue
 
    41  * @link http://simplepie.org/ SimplePie
 
    40  * @link http://simplepie.org/ SimplePie
 
    42  * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 
    41  * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 
    43  */
 
    42  */
 
    44 
    43 
    73 	public function set_registry(SimplePie_Registry $registry)
 
    72 	public function set_registry(SimplePie_Registry $registry)
 
    74 	{
 
    73 	{
 
    75 		$this->registry = $registry;
 
    74 		$this->registry = $registry;
 
    76 	}
 
    75 	}
 
    77 
    76 
    78 	public function parse(&$data, $encoding)
 
    77 	public function parse(&$data, $encoding, $url = '')
 
    79 	{
 
    78 	{
 
       
    79 		if (class_exists('DOMXpath') && function_exists('Mf2\parse')) {
 
       
    80 			$doc = new DOMDocument();
 
       
    81 			@$doc->loadHTML($data);
 
       
    82 			$xpath = new DOMXpath($doc);
 
       
    83 			// Check for both h-feed and h-entry, as both a feed with no entries
 
       
    84 			// and a list of entries without an h-feed wrapper are both valid.
 
       
    85 			$query = '//*[contains(concat(" ", @class, " "), " h-feed ") or '.
 
       
    86 				'contains(concat(" ", @class, " "), " h-entry ")]';
 
       
    87 			$result = $xpath->query($query);
 
       
    88 			if ($result->length !== 0) {
 
       
    89 				return $this->parse_microformats($data, $url);
 
       
    90 			}
 
       
    91 		}
 
       
    92 
    80 		// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
 
    93 		// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
 
    81 		if (strtoupper($encoding) === 'US-ASCII')
 
    94 		if (strtoupper($encoding) === 'US-ASCII')
 
    82 		{
 
    95 		{
 
    83 			$this->encoding = 'UTF-8';
 
    96 			$this->encoding = 'UTF-8';
 
    84 		}
 
    97 		}
 
   118 		{
 
   131 		{
 
   119 			$declaration = $this->registry->create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
 
   132 			$declaration = $this->registry->create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
 
   120 			if ($declaration->parse())
 
   133 			if ($declaration->parse())
 
   121 			{
 
   134 			{
 
   122 				$data = substr($data, $pos + 2);
 
   135 				$data = substr($data, $pos + 2);
 
   123 				$data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . $data;
 
   136 				$data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' ."\n". $this->declare_html_entities() . $data;
 
   124 			}
 
   137 			}
 
   125 			else
 
   138 			else
 
   126 			{
 
   139 			{
 
   127 				$this->error_string = 'SimplePie bug! Please report this!';
 
   140 				$this->error_string = 'SimplePie bug! Please report this!';
 
   128 				return false;
 
   141 				return false;
 
   161 			$this->current_column = xml_get_current_column_number($xml);
 
   174 			$this->current_column = xml_get_current_column_number($xml);
 
   162 			$this->current_byte = xml_get_current_byte_index($xml);
 
   175 			$this->current_byte = xml_get_current_byte_index($xml);
 
   163 			xml_parser_free($xml);
 
   176 			xml_parser_free($xml);
 
   164 			return $return;
 
   177 			return $return;
 
   165 		}
 
   178 		}
 
   166 		else
 
   179 
   167 		{
 
   180 		libxml_clear_errors();
 
   168 			libxml_clear_errors();
 
   181 		$xml = new XMLReader();
 
   169 			$xml = new XMLReader();
 
   182 		$xml->xml($data);
 
   170 			$xml->xml($data);
 
   183 		while (@$xml->read())
 
   171 			while (@$xml->read())
 
   184 		{
 
   172 			{
 
   185 			switch ($xml->nodeType)
 
   173 				switch ($xml->nodeType)
 
   186 			{
 
   174 				{
 
   187 
   175 
   188 				case constant('XMLReader::END_ELEMENT'):
 
   176 					case constant('XMLReader::END_ELEMENT'):
 
   189 					if ($xml->namespaceURI !== '')
 
       
   190 					{
 
       
   191 						$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
 
       
   192 					}
 
       
   193 					else
 
       
   194 					{
 
       
   195 						$tagName = $xml->localName;
 
       
   196 					}
 
       
   197 					$this->tag_close(null, $tagName);
 
       
   198 					break;
 
       
   199 				case constant('XMLReader::ELEMENT'):
 
       
   200 					$empty = $xml->isEmptyElement;
 
       
   201 					if ($xml->namespaceURI !== '')
 
       
   202 					{
 
       
   203 						$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
 
       
   204 					}
 
       
   205 					else
 
       
   206 					{
 
       
   207 						$tagName = $xml->localName;
 
       
   208 					}
 
       
   209 					$attributes = array();
 
       
   210 					while ($xml->moveToNextAttribute())
 
       
   211 					{
 
   177 						if ($xml->namespaceURI !== '')
 
   212 						if ($xml->namespaceURI !== '')
 
   178 						{
 
   213 						{
 
   179 							$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
 
   214 							$attrName = $xml->namespaceURI . $this->separator . $xml->localName;
 
   180 						}
 
   215 						}
 
   181 						else
 
   216 						else
 
   182 						{
 
   217 						{
 
   183 							$tagName = $xml->localName;
 
   218 							$attrName = $xml->localName;
 
   184 						}
 
   219 						}
 
       
   220 						$attributes[$attrName] = $xml->value;
 
       
   221 					}
 
       
   222 					$this->tag_open(null, $tagName, $attributes);
 
       
   223 					if ($empty)
 
       
   224 					{
 
   185 						$this->tag_close(null, $tagName);
 
   225 						$this->tag_close(null, $tagName);
 
   186 						break;
 
   226 					}
 
   187 					case constant('XMLReader::ELEMENT'):
 
   227 					break;
 
   188 						$empty = $xml->isEmptyElement;
 
   228 				case constant('XMLReader::TEXT'):
 
   189 						if ($xml->namespaceURI !== '')
 
   229 
   190 						{
 
   230 				case constant('XMLReader::CDATA'):
 
   191 							$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
 
   231 					$this->cdata(null, $xml->value);
 
   192 						}
 
   232 					break;
 
   193 						else
 
   233 			}
 
   194 						{
 
   234 		}
 
   195 							$tagName = $xml->localName;
 
   235 		if ($error = libxml_get_last_error())
 
   196 						}
 
   236 		{
 
   197 						$attributes = array();
 
   237 			$this->error_code = $error->code;
 
   198 						while ($xml->moveToNextAttribute())
 
   238 			$this->error_string = $error->message;
 
   199 						{
 
   239 			$this->current_line = $error->line;
 
   200 							if ($xml->namespaceURI !== '')
 
   240 			$this->current_column = $error->column;
 
   201 							{
 
   241 			return false;
 
   202 								$attrName = $xml->namespaceURI . $this->separator . $xml->localName;
 
   242 		}
 
   203 							}
 
   243 
   204 							else
 
   244 		return true;
 
   205 							{
 
       
   206 								$attrName = $xml->localName;
 
       
   207 							}
 
       
   208 							$attributes[$attrName] = $xml->value;
 
       
   209 						}
 
       
   210 						$this->tag_open(null, $tagName, $attributes);
 
       
   211 						if ($empty)
 
       
   212 						{
 
       
   213 							$this->tag_close(null, $tagName);
 
       
   214 						}
 
       
   215 						break;
 
       
   216 					case constant('XMLReader::TEXT'):
 
       
   217 
       
   218 					case constant('XMLReader::CDATA'):
 
       
   219 						$this->cdata(null, $xml->value);
 
       
   220 						break;
 
       
   221 				}
 
       
   222 			}
 
       
   223 			if ($error = libxml_get_last_error())
 
       
   224 			{
 
       
   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 			else
 
       
   232 			{
 
       
   233 				return true;
 
       
   234 			}
 
       
   235 		}
 
       
   236 	}
 
   245 	}
 
   237 
   246 
   238 	public function get_error_code()
 
   247 	public function get_error_code()
 
   239 	{
 
   248 	{
 
   240 		return $this->error_code;
 
   249 		return $this->error_code;
 
   402 				$cache[$string] = array('', $string);
 
   411 				$cache[$string] = array('', $string);
 
   403 			}
 
   412 			}
 
   404 		}
 
   413 		}
 
   405 		return $cache[$string];
 
   414 		return $cache[$string];
 
   406 	}
 
   415 	}
 
       
   416 
       
   417 	private function parse_hcard($data, $category = false) {
 
       
   418 		$name = '';
 
       
   419 		$link = '';
 
       
   420 		// Check if h-card is set and pass that information on in the link.
 
       
   421 		if (isset($data['type']) && in_array('h-card', $data['type'])) {
 
       
   422 			if (isset($data['properties']['name'][0])) {
 
       
   423 				$name = $data['properties']['name'][0];
 
       
   424 			}
 
       
   425 			if (isset($data['properties']['url'][0])) {
 
       
   426 				$link = $data['properties']['url'][0];
 
       
   427 				if ($name === '') {
 
       
   428 					$name = $link;
 
       
   429 				}
 
       
   430 				else {
 
       
   431 					// can't have commas in categories.
 
       
   432 					$name = str_replace(',', '', $name);
 
       
   433 				}
 
       
   434 				$person_tag = $category ? '<span class="person-tag"></span>' : '';
 
       
   435 				return '<a class="h-card" href="'.$link.'">'.$person_tag.$name.'</a>';
 
       
   436 			}
 
       
   437 		}
 
       
   438 		return isset($data['value']) ? $data['value'] : '';
 
       
   439 	}
 
       
   440 
       
   441 	private function parse_microformats(&$data, $url) {
 
       
   442 		$feed_title = '';
 
       
   443 		$feed_author = NULL;
 
       
   444 		$author_cache = array();
 
       
   445 		$items = array();
 
       
   446 		$entries = array();
 
       
   447 		$mf = Mf2\parse($data, $url);
 
       
   448 		// First look for an h-feed.
 
       
   449 		$h_feed = array();
 
       
   450 		foreach ($mf['items'] as $mf_item) {
 
       
   451 			if (in_array('h-feed', $mf_item['type'])) {
 
       
   452 				$h_feed = $mf_item;
 
       
   453 				break;
 
       
   454 			}
 
       
   455 			// Also look for h-feed or h-entry in the children of each top level item.
 
       
   456 			if (!isset($mf_item['children'][0]['type'])) continue;
 
       
   457 			if (in_array('h-feed', $mf_item['children'][0]['type'])) {
 
       
   458 				$h_feed = $mf_item['children'][0];
 
       
   459 				// In this case the parent of the h-feed may be an h-card, so use it as
 
       
   460 				// the feed_author.
 
       
   461 				if (in_array('h-card', $mf_item['type'])) $feed_author = $mf_item;
 
       
   462 				break;
 
       
   463 			}
 
       
   464 			else if (in_array('h-entry', $mf_item['children'][0]['type'])) {
 
       
   465 				$entries = $mf_item['children'];
 
       
   466 				// In this case the parent of the h-entry list may be an h-card, so use
 
       
   467 				// it as the feed_author.
 
       
   468 				if (in_array('h-card', $mf_item['type'])) $feed_author = $mf_item;
 
       
   469 				break;
 
       
   470 			}
 
       
   471 		}
 
       
   472 		if (isset($h_feed['children'])) {
 
       
   473 			$entries = $h_feed['children'];
 
       
   474 			// Also set the feed title and store author from the h-feed if available.
 
       
   475 			if (isset($mf['items'][0]['properties']['name'][0])) {
 
       
   476 				$feed_title = $mf['items'][0]['properties']['name'][0];
 
       
   477 			}
 
       
   478 			if (isset($mf['items'][0]['properties']['author'][0])) {
 
       
   479 				$feed_author = $mf['items'][0]['properties']['author'][0];
 
       
   480 			}
 
       
   481 		}
 
       
   482 		else if (count($entries) === 0) {
 
       
   483 			$entries = $mf['items'];
 
       
   484 		}
 
       
   485 		for ($i = 0; $i < count($entries); $i++) {
 
       
   486 			$entry = $entries[$i];
 
       
   487 			if (in_array('h-entry', $entry['type'])) {
 
       
   488 				$item = array();
 
       
   489 				$title = '';
 
       
   490 				$description = '';
 
       
   491 				if (isset($entry['properties']['url'][0])) {
 
       
   492 					$link = $entry['properties']['url'][0];
 
       
   493 					if (isset($link['value'])) $link = $link['value'];
 
       
   494 					$item['link'] = array(array('data' => $link));
 
       
   495 				}
 
       
   496 				if (isset($entry['properties']['uid'][0])) {
 
       
   497 					$guid = $entry['properties']['uid'][0];
 
       
   498 					if (isset($guid['value'])) $guid = $guid['value'];
 
       
   499 					$item['guid'] = array(array('data' => $guid));
 
       
   500 				}
 
       
   501 				if (isset($entry['properties']['name'][0])) {
 
       
   502 					$title = $entry['properties']['name'][0];
 
       
   503 					if (isset($title['value'])) $title = $title['value'];
 
       
   504 					$item['title'] = array(array('data' => $title));
 
       
   505 				}
 
       
   506 				if (isset($entry['properties']['author'][0]) || isset($feed_author)) {
 
       
   507 					// author is a special case, it can be plain text or an h-card array.
 
       
   508 					// If it's plain text it can also be a url that should be followed to
 
       
   509 					// get the actual h-card.
 
       
   510 					$author = isset($entry['properties']['author'][0]) ?
 
       
   511 						$entry['properties']['author'][0] : $feed_author;
 
       
   512 					if (!is_string($author)) {
 
       
   513 						$author = $this->parse_hcard($author);
 
       
   514 					}
 
       
   515 					else if (strpos($author, 'http') === 0) {
 
       
   516 						if (isset($author_cache[$author])) {
 
       
   517 							$author = $author_cache[$author];
 
       
   518 						}
 
       
   519 						else {
 
       
   520 							$mf = Mf2\fetch($author);
 
       
   521 							foreach ($mf['items'] as $hcard) {
 
       
   522 								// Only interested in an h-card by itself in this case.
 
       
   523 								if (!in_array('h-card', $hcard['type'])) {
 
       
   524 									continue;
 
       
   525 								}
 
       
   526 								// It must have a url property matching what we fetched.
 
       
   527 								if (!isset($hcard['properties']['url']) ||
 
       
   528 										!(in_array($author, $hcard['properties']['url']))) {
 
       
   529 									continue;
 
       
   530 								}
 
       
   531 								// Save parse_hcard the trouble of finding the correct url.
 
       
   532 								$hcard['properties']['url'][0] = $author;
 
       
   533 								// Cache this h-card for the next h-entry to check.
 
       
   534 								$author_cache[$author] = $this->parse_hcard($hcard);
 
       
   535 								$author = $author_cache[$author];
 
       
   536 								break;
 
       
   537 							}
 
       
   538 						}
 
       
   539 					}
 
       
   540 					$item['author'] = array(array('data' => $author));
 
       
   541 				}
 
       
   542 				if (isset($entry['properties']['photo'][0])) {
 
       
   543 					// If a photo is also in content, don't need to add it again here.
 
       
   544 					$content = '';
 
       
   545 					if (isset($entry['properties']['content'][0]['html'])) {
 
       
   546 						$content = $entry['properties']['content'][0]['html'];
 
       
   547 					}
 
       
   548 					$photo_list = array();
 
       
   549 					for ($j = 0; $j < count($entry['properties']['photo']); $j++) {
 
       
   550 						$photo = $entry['properties']['photo'][$j];
 
       
   551 						if (!empty($photo) && strpos($content, $photo) === false) {
 
       
   552 							$photo_list[] = $photo;
 
       
   553 						}
 
       
   554 					}
 
       
   555 					// When there's more than one photo show the first and use a lightbox.
 
       
   556 					// Need a permanent, unique name for the image set, but don't have
 
       
   557 					// anything unique except for the content itself, so use that.
 
       
   558 					$count = count($photo_list);
 
       
   559 					if ($count > 1) {
 
       
   560 						$image_set_id = preg_replace('/[[:^alnum:]]/', '', $photo_list[0]);
 
       
   561 						$description = '<p>';
 
       
   562 						for ($j = 0; $j < $count; $j++) {
 
       
   563 							$hidden = $j === 0 ? '' : 'class="hidden" ';
 
       
   564 							$description .= '<a href="'.$photo_list[$j].'" '.$hidden.
 
       
   565 								'data-lightbox="image-set-'.$image_set_id.'">'.
 
       
   566 								'<img src="'.$photo_list[$j].'"></a>';
 
       
   567 						}
 
       
   568 						$description .= '<br><b>'.$count.' photos</b></p>';
 
       
   569 					}
 
       
   570 					else if ($count == 1) {
 
       
   571 						$description = '<p><img src="'.$photo_list[0].'"></p>';
 
       
   572 					}
 
       
   573 				}
 
       
   574 				if (isset($entry['properties']['content'][0]['html'])) {
 
       
   575 					// e-content['value'] is the same as p-name when they are on the same
 
       
   576 					// element. Use this to replace title with a strip_tags version so
 
       
   577 					// that alt text from images is not included in the title.
 
       
   578 					if ($entry['properties']['content'][0]['value'] === $title) {
 
       
   579 						$title = strip_tags($entry['properties']['content'][0]['html']);
 
       
   580 						$item['title'] = array(array('data' => $title));
 
       
   581 					}
 
       
   582 					$description .= $entry['properties']['content'][0]['html'];
 
       
   583 					if (isset($entry['properties']['in-reply-to'][0])) {
 
       
   584 						$in_reply_to = '';
 
       
   585 						if (is_string($entry['properties']['in-reply-to'][0])) {
 
       
   586 							$in_reply_to = $entry['properties']['in-reply-to'][0];
 
       
   587 						}
 
       
   588 						else if (isset($entry['properties']['in-reply-to'][0]['value'])) {
 
       
   589 							$in_reply_to = $entry['properties']['in-reply-to'][0]['value'];
 
       
   590 						}
 
       
   591 						if ($in_reply_to !== '') {
 
       
   592 							$description .= '<p><span class="in-reply-to"></span> '.
 
       
   593 								'<a href="'.$in_reply_to.'">'.$in_reply_to.'</a><p>';
 
       
   594 						}
 
       
   595 					}
 
       
   596 					$item['description'] = array(array('data' => $description));
 
       
   597 				}
 
       
   598 				if (isset($entry['properties']['category'])) {
 
       
   599 					$category_csv = '';
 
       
   600 					// Categories can also contain h-cards.
 
       
   601 					foreach ($entry['properties']['category'] as $category) {
 
       
   602 						if ($category_csv !== '') $category_csv .= ', ';
 
       
   603 						if (is_string($category)) {
 
       
   604 							// Can't have commas in categories.
 
       
   605 							$category_csv .= str_replace(',', '', $category);
 
       
   606 						}
 
       
   607 						else {
 
       
   608 							$category_csv .= $this->parse_hcard($category, true);
 
       
   609 						}
 
       
   610 					}
 
       
   611 					$item['category'] = array(array('data' => $category_csv));
 
       
   612 				}
 
       
   613 				if (isset($entry['properties']['published'][0])) {
 
       
   614 					$timestamp = strtotime($entry['properties']['published'][0]);
 
       
   615 					$pub_date = date('F j Y g:ia', $timestamp).' GMT';
 
       
   616 					$item['pubDate'] = array(array('data' => $pub_date));
 
       
   617 				}
 
       
   618 				// The title and description are set to the empty string to represent
 
       
   619 				// a deleted item (which also makes it an invalid rss item).
 
       
   620 				if (isset($entry['properties']['deleted'][0])) {
 
       
   621 					$item['title'] = array(array('data' => ''));
 
       
   622 					$item['description'] = array(array('data' => ''));
 
       
   623 				}
 
       
   624 				$items[] = array('child' => array('' => $item));
 
       
   625 			}
 
       
   626 		}
 
       
   627 		// Mimic RSS data format when storing microformats.
 
       
   628 		$link = array(array('data' => $url));
 
       
   629 		$image = '';
 
       
   630 		if (!is_string($feed_author) &&
 
       
   631 				isset($feed_author['properties']['photo'][0])) {
 
       
   632 			$image = array(array('child' => array('' => array('url' =>
 
       
   633 				array(array('data' => $feed_author['properties']['photo'][0]))))));
 
       
   634 		}
 
       
   635 		// Use the name given for the h-feed, or get the title from the html.
 
       
   636 		if ($feed_title !== '') {
 
       
   637 			$feed_title = array(array('data' => htmlspecialchars($feed_title)));
 
       
   638 		}
 
       
   639 		else if ($position = strpos($data, '<title>')) {
 
       
   640 			$start = $position < 200 ? 0 : $position - 200;
 
       
   641 			$check = substr($data, $start, 400);
 
       
   642 			$matches = array();
 
       
   643 			if (preg_match('/<title>(.+)<\/title>/', $check, $matches)) {
 
       
   644 				$feed_title = array(array('data' => htmlspecialchars($matches[1])));
 
       
   645 			}
 
       
   646 		}
 
       
   647 		$channel = array('channel' => array(array('child' => array('' =>
 
       
   648 			array('link' => $link, 'image' => $image, 'title' => $feed_title,
 
       
   649 			      'item' => $items)))));
 
       
   650 		$rss = array(array('attribs' => array('' => array('version' => '2.0')),
 
       
   651 		                   'child' => array('' => $channel)));
 
       
   652 		$this->data = array('child' => array('' => array('rss' => $rss)));
 
       
   653 		return true;
 
       
   654 	}
 
       
   655 
       
   656 	private function declare_html_entities() {
 
       
   657 		// This is required because the RSS specification says that entity-encoded
 
       
   658 		// html is allowed, but the xml specification says they must be declared.
 
       
   659 		return '<!DOCTYPE html [ <!ENTITY nbsp "&#x00A0;"> <!ENTITY iexcl "&#x00A1;"> <!ENTITY cent "&#x00A2;"> <!ENTITY pound "&#x00A3;"> <!ENTITY curren "&#x00A4;"> <!ENTITY yen "&#x00A5;"> <!ENTITY brvbar "&#x00A6;"> <!ENTITY sect "&#x00A7;"> <!ENTITY uml "&#x00A8;"> <!ENTITY copy "&#x00A9;"> <!ENTITY ordf "&#x00AA;"> <!ENTITY laquo "&#x00AB;"> <!ENTITY not "&#x00AC;"> <!ENTITY shy "&#x00AD;"> <!ENTITY reg "&#x00AE;"> <!ENTITY macr "&#x00AF;"> <!ENTITY deg "&#x00B0;"> <!ENTITY plusmn "&#x00B1;"> <!ENTITY sup2 "&#x00B2;"> <!ENTITY sup3 "&#x00B3;"> <!ENTITY acute "&#x00B4;"> <!ENTITY micro "&#x00B5;"> <!ENTITY para "&#x00B6;"> <!ENTITY middot "&#x00B7;"> <!ENTITY cedil "&#x00B8;"> <!ENTITY sup1 "&#x00B9;"> <!ENTITY ordm "&#x00BA;"> <!ENTITY raquo "&#x00BB;"> <!ENTITY frac14 "&#x00BC;"> <!ENTITY frac12 "&#x00BD;"> <!ENTITY frac34 "&#x00BE;"> <!ENTITY iquest "&#x00BF;"> <!ENTITY Agrave "&#x00C0;"> <!ENTITY Aacute "&#x00C1;"> <!ENTITY Acirc "&#x00C2;"> <!ENTITY Atilde "&#x00C3;"> <!ENTITY Auml "&#x00C4;"> <!ENTITY Aring "&#x00C5;"> <!ENTITY AElig "&#x00C6;"> <!ENTITY Ccedil "&#x00C7;"> <!ENTITY Egrave "&#x00C8;"> <!ENTITY Eacute "&#x00C9;"> <!ENTITY Ecirc "&#x00CA;"> <!ENTITY Euml "&#x00CB;"> <!ENTITY Igrave "&#x00CC;"> <!ENTITY Iacute "&#x00CD;"> <!ENTITY Icirc "&#x00CE;"> <!ENTITY Iuml "&#x00CF;"> <!ENTITY ETH "&#x00D0;"> <!ENTITY Ntilde "&#x00D1;"> <!ENTITY Ograve "&#x00D2;"> <!ENTITY Oacute "&#x00D3;"> <!ENTITY Ocirc "&#x00D4;"> <!ENTITY Otilde "&#x00D5;"> <!ENTITY Ouml "&#x00D6;"> <!ENTITY times "&#x00D7;"> <!ENTITY Oslash "&#x00D8;"> <!ENTITY Ugrave "&#x00D9;"> <!ENTITY Uacute "&#x00DA;"> <!ENTITY Ucirc "&#x00DB;"> <!ENTITY Uuml "&#x00DC;"> <!ENTITY Yacute "&#x00DD;"> <!ENTITY THORN "&#x00DE;"> <!ENTITY szlig "&#x00DF;"> <!ENTITY agrave "&#x00E0;"> <!ENTITY aacute "&#x00E1;"> <!ENTITY acirc "&#x00E2;"> <!ENTITY atilde "&#x00E3;"> <!ENTITY auml "&#x00E4;"> <!ENTITY aring "&#x00E5;"> <!ENTITY aelig "&#x00E6;"> <!ENTITY ccedil "&#x00E7;"> <!ENTITY egrave "&#x00E8;"> <!ENTITY eacute "&#x00E9;"> <!ENTITY ecirc "&#x00EA;"> <!ENTITY euml "&#x00EB;"> <!ENTITY igrave "&#x00EC;"> <!ENTITY iacute "&#x00ED;"> <!ENTITY icirc "&#x00EE;"> <!ENTITY iuml "&#x00EF;"> <!ENTITY eth "&#x00F0;"> <!ENTITY ntilde "&#x00F1;"> <!ENTITY ograve "&#x00F2;"> <!ENTITY oacute "&#x00F3;"> <!ENTITY ocirc "&#x00F4;"> <!ENTITY otilde "&#x00F5;"> <!ENTITY ouml "&#x00F6;"> <!ENTITY divide "&#x00F7;"> <!ENTITY oslash "&#x00F8;"> <!ENTITY ugrave "&#x00F9;"> <!ENTITY uacute "&#x00FA;"> <!ENTITY ucirc "&#x00FB;"> <!ENTITY uuml "&#x00FC;"> <!ENTITY yacute "&#x00FD;"> <!ENTITY thorn "&#x00FE;"> <!ENTITY yuml "&#x00FF;"> <!ENTITY OElig "&#x0152;"> <!ENTITY oelig "&#x0153;"> <!ENTITY Scaron "&#x0160;"> <!ENTITY scaron "&#x0161;"> <!ENTITY Yuml "&#x0178;"> <!ENTITY fnof "&#x0192;"> <!ENTITY circ "&#x02C6;"> <!ENTITY tilde "&#x02DC;"> <!ENTITY Alpha "&#x0391;"> <!ENTITY Beta "&#x0392;"> <!ENTITY Gamma "&#x0393;"> <!ENTITY Epsilon "&#x0395;"> <!ENTITY Zeta "&#x0396;"> <!ENTITY Eta "&#x0397;"> <!ENTITY Theta "&#x0398;"> <!ENTITY Iota "&#x0399;"> <!ENTITY Kappa "&#x039A;"> <!ENTITY Lambda "&#x039B;"> <!ENTITY Mu "&#x039C;"> <!ENTITY Nu "&#x039D;"> <!ENTITY Xi "&#x039E;"> <!ENTITY Omicron "&#x039F;"> <!ENTITY Pi "&#x03A0;"> <!ENTITY Rho "&#x03A1;"> <!ENTITY Sigma "&#x03A3;"> <!ENTITY Tau "&#x03A4;"> <!ENTITY Upsilon "&#x03A5;"> <!ENTITY Phi "&#x03A6;"> <!ENTITY Chi "&#x03A7;"> <!ENTITY Psi "&#x03A8;"> <!ENTITY Omega "&#x03A9;"> <!ENTITY alpha "&#x03B1;"> <!ENTITY beta "&#x03B2;"> <!ENTITY gamma "&#x03B3;"> <!ENTITY delta "&#x03B4;"> <!ENTITY epsilon "&#x03B5;"> <!ENTITY zeta "&#x03B6;"> <!ENTITY eta "&#x03B7;"> <!ENTITY theta "&#x03B8;"> <!ENTITY iota "&#x03B9;"> <!ENTITY kappa "&#x03BA;"> <!ENTITY lambda "&#x03BB;"> <!ENTITY mu "&#x03BC;"> <!ENTITY nu "&#x03BD;"> <!ENTITY xi "&#x03BE;"> <!ENTITY omicron "&#x03BF;"> <!ENTITY pi "&#x03C0;"> <!ENTITY rho "&#x03C1;"> <!ENTITY sigmaf "&#x03C2;"> <!ENTITY sigma "&#x03C3;"> <!ENTITY tau "&#x03C4;"> <!ENTITY upsilon "&#x03C5;"> <!ENTITY phi "&#x03C6;"> <!ENTITY chi "&#x03C7;"> <!ENTITY psi "&#x03C8;"> <!ENTITY omega "&#x03C9;"> <!ENTITY thetasym "&#x03D1;"> <!ENTITY upsih "&#x03D2;"> <!ENTITY piv "&#x03D6;"> <!ENTITY ensp "&#x2002;"> <!ENTITY emsp "&#x2003;"> <!ENTITY thinsp "&#x2009;"> <!ENTITY zwnj "&#x200C;"> <!ENTITY zwj "&#x200D;"> <!ENTITY lrm "&#x200E;"> <!ENTITY rlm "&#x200F;"> <!ENTITY ndash "&#x2013;"> <!ENTITY mdash "&#x2014;"> <!ENTITY lsquo "&#x2018;"> <!ENTITY rsquo "&#x2019;"> <!ENTITY sbquo "&#x201A;"> <!ENTITY ldquo "&#x201C;"> <!ENTITY rdquo "&#x201D;"> <!ENTITY bdquo "&#x201E;"> <!ENTITY dagger "&#x2020;"> <!ENTITY Dagger "&#x2021;"> <!ENTITY bull "&#x2022;"> <!ENTITY hellip "&#x2026;"> <!ENTITY permil "&#x2030;"> <!ENTITY prime "&#x2032;"> <!ENTITY Prime "&#x2033;"> <!ENTITY lsaquo "&#x2039;"> <!ENTITY rsaquo "&#x203A;"> <!ENTITY oline "&#x203E;"> <!ENTITY frasl "&#x2044;"> <!ENTITY euro "&#x20AC;"> <!ENTITY image "&#x2111;"> <!ENTITY weierp "&#x2118;"> <!ENTITY real "&#x211C;"> <!ENTITY trade "&#x2122;"> <!ENTITY alefsym "&#x2135;"> <!ENTITY larr "&#x2190;"> <!ENTITY uarr "&#x2191;"> <!ENTITY rarr "&#x2192;"> <!ENTITY darr "&#x2193;"> <!ENTITY harr "&#x2194;"> <!ENTITY crarr "&#x21B5;"> <!ENTITY lArr "&#x21D0;"> <!ENTITY uArr "&#x21D1;"> <!ENTITY rArr "&#x21D2;"> <!ENTITY dArr "&#x21D3;"> <!ENTITY hArr "&#x21D4;"> <!ENTITY forall "&#x2200;"> <!ENTITY part "&#x2202;"> <!ENTITY exist "&#x2203;"> <!ENTITY empty "&#x2205;"> <!ENTITY nabla "&#x2207;"> <!ENTITY isin "&#x2208;"> <!ENTITY notin "&#x2209;"> <!ENTITY ni "&#x220B;"> <!ENTITY prod "&#x220F;"> <!ENTITY sum "&#x2211;"> <!ENTITY minus "&#x2212;"> <!ENTITY lowast "&#x2217;"> <!ENTITY radic "&#x221A;"> <!ENTITY prop "&#x221D;"> <!ENTITY infin "&#x221E;"> <!ENTITY ang "&#x2220;"> <!ENTITY and "&#x2227;"> <!ENTITY or "&#x2228;"> <!ENTITY cap "&#x2229;"> <!ENTITY cup "&#x222A;"> <!ENTITY int "&#x222B;"> <!ENTITY there4 "&#x2234;"> <!ENTITY sim "&#x223C;"> <!ENTITY cong "&#x2245;"> <!ENTITY asymp "&#x2248;"> <!ENTITY ne "&#x2260;"> <!ENTITY equiv "&#x2261;"> <!ENTITY le "&#x2264;"> <!ENTITY ge "&#x2265;"> <!ENTITY sub "&#x2282;"> <!ENTITY sup "&#x2283;"> <!ENTITY nsub "&#x2284;"> <!ENTITY sube "&#x2286;"> <!ENTITY supe "&#x2287;"> <!ENTITY oplus "&#x2295;"> <!ENTITY otimes "&#x2297;"> <!ENTITY perp "&#x22A5;"> <!ENTITY sdot "&#x22C5;"> <!ENTITY lceil "&#x2308;"> <!ENTITY rceil "&#x2309;"> <!ENTITY lfloor "&#x230A;"> <!ENTITY rfloor "&#x230B;"> <!ENTITY lang "&#x2329;"> <!ENTITY rang "&#x232A;"> <!ENTITY loz "&#x25CA;"> <!ENTITY spades "&#x2660;"> <!ENTITY clubs "&#x2663;"> <!ENTITY hearts "&#x2665;"> <!ENTITY diams "&#x2666;"> ]>';
 
       
   660 	}
 
   407 }
 
   661 }
enmi-conf.org