* @copyright 2013
* @license http://www.wtfpl.net/ see COPYING file
*/
class Url
{
public $url;
private $fingerprints = array(
// Posterous
' array('hostname'=>'fingerprint.posterous.com', 'head'=>true),
// Blogger
' array('hostname'=>'fingerprint.blogspot.com', 'head'=>true),
' array('hostname'=>'fingerprint.blogspot.com', 'head'=>true),
// WordPress (self-hosted and hosted)
'";
} else {
$html = "Download $_name";
}
$title = $_name;
$do_content_extraction = false;
break;
}
}
}
unset($_mime, $_act, $_name, $match);
}
if ($do_content_extraction) {
$html = $response['body'];
// remove strange things
$html = str_replace('[>', '', $html);
$html = $this->convert_to_utf8($html, $response['headers']);
// check site config for single page URL - fetch it if found
if ($single_page_response = $this->getSinglePage($item, $html, $effective_url)) {
$html = $single_page_response['body'];
// remove strange things
$html = str_replace('[>', '', $html);
$html = $this->convert_to_utf8($html, $single_page_response['headers']);
$effective_url = $single_page_response['effective_url'];
unset($single_page_response);
}
$extract_result = $extractor->process($html, $effective_url);
$readability = $extractor->readability;
$content_block = ($extract_result) ? $extractor->getContent() : null;
}
}
if ($do_content_extraction) {
// if we failed to extract content...
if (!$extract_result) {
$html = $this->error_message;
// keep the original item description
$html .= $item->get_description();
} else {
$readability->clean($content_block, 'select');
if ($this->rewrite_relative_urls) $this->makeAbsolute($effective_url, $content_block);
if ($content_block->childNodes->length == 1 && $content_block->firstChild->nodeType === XML_ELEMENT_NODE) {
$html = $content_block->firstChild->innerHTML;
} else {
$html = $content_block->innerHTML;
}
// post-processing cleanup
$html = preg_replace('!
[\s\h\v]*
!u', '', $html); } } } $title = ($extractor->getTitle() != '' ? $extractor->getTitle() : _('Untitled')); $content = array ('title' => $title, 'body' => $html); return $content; } private function convert_to_utf8($html, $header=null) { $encoding = null; if ($html || $header) { if (is_array($header)) $header = implode("\n", $header); if (!$header || !preg_match_all('/^Content-Type:\s+([^;]+)(?:;\s*charset=["\']?([^;"\'\n]*))?/im', $header, $match, PREG_SET_ORDER)) { // error parsing the response } else { $match = end($match); // get last matched element (in case of redirects) if (isset($match[2])) $encoding = trim($match[2], "\"' \r\n\0\x0B\t"); } // TODO: check to see if encoding is supported (can we convert it?) // If it's not, result will be empty string. // For now we'll check for invalid encoding types returned by some sites, e.g. 'none' // Problem URL: http://facta.co.jp/blog/archives/20111026001026.html if (!$encoding || $encoding == 'none') { // search for encoding in HTML - only look at the first 35000 characters $html_head = substr($html, 0, 40000); if (preg_match('/^<\?xml\s+version=(?:"[^"]*"|\'[^\']*\')\s+encoding=("[^"]*"|\'[^\']*\')/s', $html_head, $match)) { $encoding = trim($match[1], '"\''); } elseif (preg_match('/]+)/i', $html_head, $match)) { $encoding = trim($match[1]); } elseif (preg_match_all('/]+)>/i', $html_head, $match)) { foreach ($match[1] as $_test) { if (preg_match('/charset=["\']?([^"\']+)/i', $_test, $_m)) { $encoding = trim($_m[1]); break; } } } } if (isset($encoding)) $encoding = trim($encoding); // trim is important here! if (!$encoding || (strtolower($encoding) == 'iso-8859-1')) { // replace MS Word smart qutoes $trans = array(); $trans[chr(130)] = '‚'; // Single Low-9 Quotation Mark $trans[chr(131)] = 'ƒ'; // Latin Small Letter F With Hook $trans[chr(132)] = '„'; // Double Low-9 Quotation Mark $trans[chr(133)] = '…'; // Horizontal Ellipsis $trans[chr(134)] = '†'; // Dagger $trans[chr(135)] = '‡'; // Double Dagger $trans[chr(136)] = 'ˆ'; // Modifier Letter Circumflex Accent $trans[chr(137)] = '‰'; // Per Mille Sign $trans[chr(138)] = 'Š'; // Latin Capital Letter S With Caron $trans[chr(139)] = '‹'; // Single Left-Pointing Angle Quotation Mark $trans[chr(140)] = 'Œ'; // Latin Capital Ligature OE $trans[chr(145)] = '‘'; // Left Single Quotation Mark $trans[chr(146)] = '’'; // Right Single Quotation Mark $trans[chr(147)] = '“'; // Left Double Quotation Mark $trans[chr(148)] = '”'; // Right Double Quotation Mark $trans[chr(149)] = '•'; // Bullet $trans[chr(150)] = '–'; // En Dash $trans[chr(151)] = '—'; // Em Dash $trans[chr(152)] = '˜'; // Small Tilde $trans[chr(153)] = '™'; // Trade Mark Sign $trans[chr(154)] = 'š'; // Latin Small Letter S With Caron $trans[chr(155)] = '›'; // Single Right-Pointing Angle Quotation Mark $trans[chr(156)] = 'œ'; // Latin Small Ligature OE $trans[chr(159)] = 'Ÿ'; // Latin Capital Letter Y With Diaeresis $html = strtr($html, $trans); } if (!$encoding) { $encoding = 'utf-8'; } else { if (strtolower($encoding) != 'utf-8') { $html = SimplePie_Misc::change_encoding($html, $encoding, 'utf-8'); /* if (function_exists('iconv')) { // iconv appears to handle certain character encodings better than mb_convert_encoding $html = iconv($encoding, 'utf-8', $html); } else { $html = mb_convert_encoding($html, 'utf-8', $encoding); } */ } } } return $html; } private function makeAbsolute($base, $elem) { $base = new SimplePie_IRI($base); // remove '//' in URL path (used to prevent URLs from resolving properly) // TODO: check if this is still the case if (isset($base->path)) $base->path = preg_replace('!//+!', '/', $base->path); foreach(array('a'=>'href', 'img'=>'src') as $tag => $attr) { $elems = $elem->getElementsByTagName($tag); for ($i = $elems->length-1; $i >= 0; $i--) { $e = $elems->item($i); //$e->parentNode->replaceChild($articleContent->ownerDocument->createTextNode($e->textContent), $e); $this->makeAbsoluteAttr($base, $e, $attr); } if (strtolower($elem->tagName) == $tag) $this->makeAbsoluteAttr($base, $elem, $attr); } } private function makeAbsoluteAttr($base, $e, $attr) { if ($e->hasAttribute($attr)) { // Trim leading and trailing white space. I don't really like this but // unfortunately it does appear on some sites. e.g.