From 42c80841c846610be280218d53fcde06b0f0063b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= Date: Fri, 6 Dec 2013 09:45:27 +0100 Subject: [change] we now use Full-Text RSS 3.1, thank you so much @fivefilters --- .../content-extractor/ContentExtractor.php | 612 --------------------- 1 file changed, 612 deletions(-) delete mode 100644 inc/3rdparty/content-extractor/ContentExtractor.php (limited to 'inc/3rdparty/content-extractor/ContentExtractor.php') diff --git a/inc/3rdparty/content-extractor/ContentExtractor.php b/inc/3rdparty/content-extractor/ContentExtractor.php deleted file mode 100644 index 26878392..00000000 --- a/inc/3rdparty/content-extractor/ContentExtractor.php +++ /dev/null @@ -1,612 +0,0 @@ - true, - 'output-xhtml' => true, - 'logical-emphasis' => true, - 'show-body-only' => false, - 'new-blocklevel-tags' => 'article, aside, footer, header, hgroup, menu, nav, section, details, datagrid', - 'new-inline-tags' => 'mark, time, meter, progress, data', - 'wrap' => 0, - 'drop-empty-paras' => true, - 'drop-proprietary-attributes' => false, - 'enclose-text' => true, - 'enclose-block-text' => true, - 'merge-divs' => true, - 'merge-spans' => true, - 'char-encoding' => 'utf8', - 'hide-comments' => true - ); - protected $html; - protected $config; - protected $title; - protected $author = array(); - protected $language; - protected $date; - protected $body; - protected $success = false; - public $fingerprints = array(); - public $readability; - public $debug = false; - - function __construct($path, $fallback=null) { - SiteConfig::set_config_path($path, $fallback); - } - - protected function debug($msg) { - if ($this->debug) { - $mem = round(memory_get_usage()/1024, 2); - $memPeak = round(memory_get_peak_usage()/1024, 2); - echo '* ',$msg; - echo ' - mem used: ',$mem," (peak: $memPeak)\n"; - ob_flush(); - flush(); - } - } - - public function reset() { - $this->html = null; - $this->readability = null; - $this->config = null; - $this->title = null; - $this->body = null; - $this->author = array(); - $this->language = null; - $this->date = null; - $this->success = false; - } - - public function findHostUsingFingerprints($html) { - $this->debug('Checking fingerprints...'); - $head = substr($html, 0, 8000); - foreach ($this->fingerprints as $_fp => $_fphost) { - $lookin = 'html'; - if (is_array($_fphost)) { - if (isset($_fphost['head']) && $_fphost['head']) { - $lookin = 'head'; - } - $_fphost = $_fphost['hostname']; - } - if (strpos($$lookin, $_fp) !== false) { - $this->debug("Found match: $_fphost"); - return $_fphost; - } - } - return false; - } - - // returns true on success, false on failure - // $smart_tidy indicates that if tidy is used and no results are produced, we will - // try again without it. Tidy helps us deal with PHP's patchy HTML parsing most of the time - // but it has problems of its own which we try to avoid with this option. - public function process($html, $url, $smart_tidy=true) { - $this->reset(); - // extract host name - $host = @parse_url($url, PHP_URL_HOST); - if (!($this->config = SiteConfig::build($host))) { - // no match, check HTML for fingerprints - if (!empty($this->fingerprints) && ($_fphost = $this->findHostUsingFingerprints($html))) { - $this->config = SiteConfig::build($_fphost); - } - unset($_fphost); - if (!$this->config) { - // no match, so use defaults - $this->config = new SiteConfig(); - } - } - // store copy of config in our static cache array in case we need to process another URL - SiteConfig::add_to_cache($host, $this->config); - - // do string replacements - foreach ($this->config->replace_string as $_repl) { - $html = str_replace($_repl[0], $_repl[1], $html); - } - unset($_repl); - - // use tidy (if it exists)? - // This fixes problems with some sites which would otherwise - // trouble DOMDocument's HTML parsing. (Although sometimes it - // makes matters worse, which is why you can override it in site config files.) - $tidied = false; - if ($this->config->tidy && function_exists('tidy_parse_string') && $smart_tidy) { - $this->debug('Using Tidy'); - $tidy = tidy_parse_string($html, self::$tidy_config, 'UTF8'); - if (tidy_clean_repair($tidy)) { - $original_html = $html; - $tidied = true; - // $html = $tidy->value; - } - $body = $tidy->body(); - if (preg_replace('/\s+/', '', $body->value) !== "") { - $html = $tidy->value; - } - unset($tidy); - } - - // load and parse html - $this->readability = new PocheReadability($html, $url); - - // we use xpath to find elements in the given HTML document - // see http://en.wikipedia.org/wiki/XPath_1.0 - $xpath = new DOMXPath($this->readability->dom); - - // try to get title - foreach ($this->config->title as $pattern) { - $elems = @$xpath->evaluate($pattern, $this->readability->dom); - if (is_string($elems)) { - $this->debug('Title expression evaluated as string'); - $this->title = trim($elems); - break; - } elseif ($elems instanceof DOMNodeList && $elems->length > 0) { - $this->debug('Title matched'); - $this->title = $elems->item(0)->textContent; - // remove title from document - try { - $elems->item(0)->parentNode->removeChild($elems->item(0)); - } catch (DOMException $e) { - // do nothing - } - break; - } - } - - // try to get author (if it hasn't already been set) - if (empty($this->author)) { - foreach ($this->config->author as $pattern) { - $elems = @$xpath->evaluate($pattern, $this->readability->dom); - if (is_string($elems)) { - $this->debug('Author expression evaluated as string'); - if (trim($elems) != '') { - $this->author[] = trim($elems); - break; - } - } elseif ($elems instanceof DOMNodeList && $elems->length > 0) { - foreach ($elems as $elem) { - if (!isset($elem->parentNode)) continue; - $this->author[] = trim($elem->textContent); - } - if (!empty($this->author)) break; - } - } - } - - // try to get language - $_lang_xpath = array('//html[@lang]/@lang', '//meta[@name="DC.language"]/@content'); - foreach ($_lang_xpath as $pattern) { - $elems = @$xpath->evaluate($pattern, $this->readability->dom); - if (is_string($elems)) { - if (trim($elems) != '') { - $this->language = trim($elems); - break; - } - } elseif ($elems instanceof DOMNodeList && $elems->length > 0) { - foreach ($elems as $elem) { - if (!isset($elem->parentNode)) continue; - $this->language = trim($elem->textContent); - } - if ($this->language) break; - } - } - - // try to get date - foreach ($this->config->date as $pattern) { - $elems = @$xpath->evaluate($pattern, $this->readability->dom); - if (is_string($elems)) { - $this->debug('Date expression evaluated as string'); - $this->date = strtotime(trim($elems, "; \t\n\r\0\x0B")); - } elseif ($elems instanceof DOMNodeList && $elems->length > 0) { - $this->debug('Date matched'); - $this->date = $elems->item(0)->textContent; - $this->date = strtotime(trim($this->date, "; \t\n\r\0\x0B")); - // remove date from document - // $elems->item(0)->parentNode->removeChild($elems->item(0)); - } - if (!$this->date) { - $this->date = null; - } else { - break; - } - } - - // strip elements (using xpath expressions) - foreach ($this->config->strip as $pattern) { - $elems = @$xpath->query($pattern, $this->readability->dom); - // check for matches - if ($elems && $elems->length > 0) { - $this->debug('Stripping '.$elems->length.' elements (strip)'); - for ($i=$elems->length-1; $i >= 0; $i--) { - $elems->item($i)->parentNode->removeChild($elems->item($i)); - } - } - } - - // strip elements (using id and class attribute values) - foreach ($this->config->strip_id_or_class as $string) { - $string = strtr($string, array("'"=>'', '"'=>'')); - $elems = @$xpath->query("//*[contains(@class, '$string') or contains(@id, '$string')]", $this->readability->dom); - // check for matches - if ($elems && $elems->length > 0) { - $this->debug('Stripping '.$elems->length.' elements (strip_id_or_class)'); - for ($i=$elems->length-1; $i >= 0; $i--) { - $elems->item($i)->parentNode->removeChild($elems->item($i)); - } - } - } - - // strip images (using src attribute values) - foreach ($this->config->strip_image_src as $string) { - $string = strtr($string, array("'"=>'', '"'=>'')); - $elems = @$xpath->query("//img[contains(@src, '$string')]", $this->readability->dom); - // check for matches - if ($elems && $elems->length > 0) { - $this->debug('Stripping '.$elems->length.' image elements'); - for ($i=$elems->length-1; $i >= 0; $i--) { - $elems->item($i)->parentNode->removeChild($elems->item($i)); - } - } - } - // strip elements using Readability.com and Instapaper.com ignore class names - // .entry-unrelated and .instapaper_ignore - // See https://www.readability.com/publishers/guidelines/#view-plainGuidelines - // and http://blog.instapaper.com/post/730281947 - $elems = @$xpath->query("//*[contains(concat(' ',normalize-space(@class),' '),' entry-unrelated ') or contains(concat(' ',normalize-space(@class),' '),' instapaper_ignore ')]", $this->readability->dom); - // check for matches - if ($elems && $elems->length > 0) { - $this->debug('Stripping '.$elems->length.' .entry-unrelated,.instapaper_ignore elements'); - for ($i=$elems->length-1; $i >= 0; $i--) { - $elems->item($i)->parentNode->removeChild($elems->item($i)); - } - } - - // strip elements that contain style="display: none;" - $elems = @$xpath->query("//*[contains(@style,'display:none')]", $this->readability->dom); - // check for matches - if ($elems && $elems->length > 0) { - $this->debug('Stripping '.$elems->length.' elements with inline display:none style'); - for ($i=$elems->length-1; $i >= 0; $i--) { - $elems->item($i)->parentNode->removeChild($elems->item($i)); - } - } - - // try to get body - foreach ($this->config->body as $pattern) { - $elems = @$xpath->query($pattern, $this->readability->dom); - // check for matches - if ($elems && $elems->length > 0) { - $this->debug('Body matched'); - if ($elems->length == 1) { - $this->body = $elems->item(0); - // prune (clean up elements that may not be content) - if ($this->config->prune) { - $this->debug('Pruning content'); - $this->readability->prepArticle($this->body); - } - break; - } else { - $this->body = $this->readability->dom->createElement('div'); - $this->debug($elems->length.' body elems found'); - foreach ($elems as $elem) { - if (!isset($elem->parentNode)) continue; - $isDescendant = false; - foreach ($this->body->childNodes as $parent) { - if ($this->isDescendant($parent, $elem)) { - $isDescendant = true; - break; - } - } - if ($isDescendant) { - $this->debug('Element is child of another body element, skipping.'); - } else { - // prune (clean up elements that may not be content) - if ($this->config->prune) { - $this->debug('Pruning content'); - $this->readability->prepArticle($elem); - } - $this->debug('Element added to body'); - $this->body->appendChild($elem); - } - } - } - } - } - - // auto detect? - $detect_title = $detect_body = $detect_author = $detect_date = false; - // detect title? - if (!isset($this->title)) { - if (empty($this->config->title) || $this->config->autodetect_on_failure) { - $detect_title = true; - } - } - // detect body? - if (!isset($this->body)) { - if (empty($this->config->body) || $this->config->autodetect_on_failure) { - $detect_body = true; - } - } - // detect author? - if (empty($this->author)) { - if (empty($this->config->author) || $this->config->autodetect_on_failure) { - $detect_author = true; - } - } - // detect date? - if (!isset($this->date)) { - if (empty($this->config->date) || $this->config->autodetect_on_failure) { - $detect_date = true; - } - } - - // check for hNews - if ($detect_title || $detect_body) { - // check for hentry - $elems = @$xpath->query("//*[contains(concat(' ',normalize-space(@class),' '),' hentry ')]", $this->readability->dom); - if ($elems && $elems->length > 0) { - $this->debug('hNews: found hentry'); - $hentry = $elems->item(0); - - if ($detect_title) { - // check for entry-title - $elems = @$xpath->query(".//*[contains(concat(' ',normalize-space(@class),' '),' entry-title ')]", $hentry); - if ($elems && $elems->length > 0) { - $this->debug('hNews: found entry-title'); - $this->title = $elems->item(0)->textContent; - // remove title from document - $elems->item(0)->parentNode->removeChild($elems->item(0)); - $detect_title = false; - } - } - - if ($detect_date) { - // check for time element with pubdate attribute - $elems = @$xpath->query(".//time[@pubdate] | .//abbr[contains(concat(' ',normalize-space(@class),' '),' published ')]", $hentry); - if ($elems && $elems->length > 0) { - $this->debug('hNews: found publication date'); - $this->date = strtotime(trim($elems->item(0)->textContent)); - // remove date from document - //$elems->item(0)->parentNode->removeChild($elems->item(0)); - if ($this->date) { - $detect_date = false; - } else { - $this->date = null; - } - } - } - - if ($detect_author) { - // check for time element with pubdate attribute - $elems = @$xpath->query(".//*[contains(concat(' ',normalize-space(@class),' '),' vcard ') and (contains(concat(' ',normalize-space(@class),' '),' author ') or contains(concat(' ',normalize-space(@class),' '),' byline '))]", $hentry); - if ($elems && $elems->length > 0) { - $this->debug('hNews: found author'); - $author = $elems->item(0); - $fn = @$xpath->query(".//*[contains(concat(' ',normalize-space(@class),' '),' fn ')]", $author); - if ($fn && $fn->length > 0) { - foreach ($fn as $_fn) { - if (trim($_fn->textContent) != '') { - $this->author[] = trim($_fn->textContent); - } - } - } else { - if (trim($author->textContent) != '') { - $this->author[] = trim($author->textContent); - } - } - $detect_author = empty($this->author); - } - } - - // check for entry-content. - // according to hAtom spec, if there are multiple elements marked entry-content, - // we include all of these in the order they appear - see http://microformats.org/wiki/hatom#Entry_Content - if ($detect_body) { - $elems = @$xpath->query(".//*[contains(concat(' ',normalize-space(@class),' '),' entry-content ')]", $hentry); - if ($elems && $elems->length > 0) { - $this->debug('hNews: found entry-content'); - if ($elems->length == 1) { - // what if it's empty? (some sites misuse hNews - place their content outside an empty entry-content element) - $e = $elems->item(0); - if (($e->tagName == 'img') || (trim($e->textContent) != '')) { - $this->body = $elems->item(0); - // prune (clean up elements that may not be content) - if ($this->config->prune) { - $this->debug('Pruning content'); - $this->readability->prepArticle($this->body); - } - $detect_body = false; - } else { - $this->debug('hNews: skipping entry-content - appears not to contain content'); - } - unset($e); - } else { - $this->body = $this->readability->dom->createElement('div'); - $this->debug($elems->length.' entry-content elems found'); - foreach ($elems as $elem) { - if (!isset($elem->parentNode)) continue; - $isDescendant = false; - foreach ($this->body->childNodes as $parent) { - if ($this->isDescendant($parent, $elem)) { - $isDescendant = true; - break; - } - } - if ($isDescendant) { - $this->debug('Element is child of another body element, skipping.'); - } else { - // prune (clean up elements that may not be content) - if ($this->config->prune) { - $this->debug('Pruning content'); - $this->readability->prepArticle($elem); - } - $this->debug('Element added to body'); - $this->body->appendChild($elem); - } - } - $detect_body = false; - } - } - } - } - } - - // check for elements marked with instapaper_title - if ($detect_title) { - // check for instapaper_title - $elems = @$xpath->query("//*[contains(concat(' ',normalize-space(@class),' '),' instapaper_title ')]", $this->readability->dom); - if ($elems && $elems->length > 0) { - $this->debug('title found (.instapaper_title)'); - $this->title = $elems->item(0)->textContent; - // remove title from document - $elems->item(0)->parentNode->removeChild($elems->item(0)); - $detect_title = false; - } - } - // check for elements marked with instapaper_body - if ($detect_body) { - $elems = @$xpath->query("//*[contains(concat(' ',normalize-space(@class),' '),' instapaper_body ')]", $this->readability->dom); - if ($elems && $elems->length > 0) { - $this->debug('body found (.instapaper_body)'); - $this->body = $elems->item(0); - // prune (clean up elements that may not be content) - if ($this->config->prune) { - $this->debug('Pruning content'); - $this->readability->prepArticle($this->body); - } - $detect_body = false; - } - } - - // Find author in rel="author" marked element - // We only use this if there's exactly one. - // If there's more than one, it could indicate more than - // one author, but it could also indicate that we're processing - // a page listing different articles with different authors. - if ($detect_author) { - $elems = @$xpath->query("//a[contains(concat(' ',normalize-space(@rel),' '),' author ')]", $this->readability->dom); - if ($elems && $elems->length == 1) { - $this->debug('Author found (rel="author")'); - $author = trim($elems->item(0)->textContent); - if ($author != '') { - $this->author[] = $author; - $detect_author = false; - } - } - } - - // Find date in pubdate marked time element - // For the same reason given above, we only use this - // if there's exactly one element. - if ($detect_date) { - $elems = @$xpath->query("//time[@pubdate]", $this->readability->dom); - if ($elems && $elems->length == 1) { - $this->debug('Date found (pubdate marked time element)'); - $this->date = strtotime(trim($elems->item(0)->textContent)); - // remove date from document - //$elems->item(0)->parentNode->removeChild($elems->item(0)); - if ($this->date) { - $detect_date = false; - } else { - $this->date = null; - } - } - } - - // still missing title or body, so we detect using Readability - if ($detect_title || $detect_body) { - $this->debug('Using Readability'); - // clone body if we're only using Readability for title (otherwise it may interfere with body element) - if (isset($this->body)) $this->body = $this->body->cloneNode(true); - $success = $this->readability->init(); - } - if ($detect_title) { - $this->debug('Detecting title'); - $this->title = $this->readability->getTitle()->textContent; - } - if ($detect_body && $success) { - $this->debug('Detecting body'); - $this->body = $this->readability->getContent(); - if ($this->body->childNodes->length == 1 && $this->body->firstChild->nodeType === XML_ELEMENT_NODE) { - $this->body = $this->body->firstChild; - } - // prune (clean up elements that may not be content) - if ($this->config->prune) { - $this->debug('Pruning content'); - $this->readability->prepArticle($this->body); - } - } - if (isset($this->body)) { - // remove scripts - $this->readability->removeScripts($this->body); - // remove any h1-h6 elements that appear as first thing in the body - // and which match our title - if (isset($this->title) && ($this->title != '')) { - $firstChild = $this->body->firstChild; - while ($firstChild->nodeType && ($firstChild->nodeType !== XML_ELEMENT_NODE)) { - $firstChild = $firstChild->nextSibling; - } - if (($firstChild->nodeType === XML_ELEMENT_NODE) - && in_array(strtolower($firstChild->tagName), array('h1', 'h2', 'h3', 'h4', 'h5', 'h6')) - && (strtolower(trim($firstChild->textContent)) == strtolower(trim($this->title)))) { - $this->body->removeChild($firstChild); - } - } - $this->success = true; - } - - // if we've had no success and we've used tidy, there's a chance - // that tidy has messed up. So let's try again without tidy... - if (!$this->success && $tidied && $smart_tidy) { - $this->debug('Trying again without tidy'); - $this->process($original_html, $url, false); - } - - return $this->success; - } - - private function isDescendant(DOMElement $parent, DOMElement $child) { - $node = $child->parentNode; - while ($node != null) { - if ($node->isSameNode($parent)) return true; - $node = $node->parentNode; - } - return false; - } - - public function getContent() { - return $this->body; - } - - public function getTitle() { - return $this->title; - } - - public function getAuthors() { - return $this->author; - } - - public function getLanguage() { - return $this->language; - } - - public function getDate() { - return $this->date; - } - - public function getSiteConfig() { - return $this->config; - } -} -?> \ No newline at end of file -- cgit v1.2.3