From d0a9aeaf80510cdbbf4f4e461798ae9c36ace420 Mon Sep 17 00:00:00 2001 From: Andrew Dolgov Date: Wed, 17 Apr 2019 08:51:17 +0300 Subject: move readability library to af_readability/vendor out of global vendor directory af_redditimgur: use HOOK_GET_FULL_TEXT instead of invoking readability directly --- vendor/andreskrey/Readability/Nodes/NodeTrait.php | 560 ---------------------- 1 file changed, 560 deletions(-) delete mode 100644 vendor/andreskrey/Readability/Nodes/NodeTrait.php (limited to 'vendor/andreskrey/Readability/Nodes/NodeTrait.php') diff --git a/vendor/andreskrey/Readability/Nodes/NodeTrait.php b/vendor/andreskrey/Readability/Nodes/NodeTrait.php deleted file mode 100644 index d7060ccbb..000000000 --- a/vendor/andreskrey/Readability/Nodes/NodeTrait.php +++ /dev/null @@ -1,560 +0,0 @@ -initialized; - } - - /** - * @return bool - */ - public function isReadabilityDataTable() - { - /* - * This is a workaround that I'd like to remove in the future. - * Seems that although we are extending the base DOMElement and adding custom properties (like this one, - * 'readabilityDataTable'), these properties get lost when you search for elements with getElementsByTagName. - * This means that even if we mark the tables in a previous step, when we want to retrieve that information, - * all the custom properties are in their default values. Somehow we need to find a way to make these properties - * permanent across the whole DOM. - * - * @see https://stackoverflow.com/questions/35654709/php-registernodeclass-and-reusing-variable-names - */ - return $this->hasAttribute('readabilityDataTable') - && $this->getAttribute('readabilityDataTable') === '1'; -// return $this->readabilityDataTable; - } - - /** - * @param bool $param - */ - public function setReadabilityDataTable($param) - { - // Can't be "true" because DOMDocument casts it to "1" - $this->setAttribute('readabilityDataTable', $param ? '1' : '0'); -// $this->readabilityDataTable = $param; - } - - /** - * Initializer. Calculates the current score of the node and returns a full Readability object. - * - * @ TODO: I don't like the weightClasses param. How can we get the config here? - * - * @param $weightClasses bool Weight classes? - * - * @return static - */ - public function initializeNode($weightClasses) - { - if (!$this->isInitialized()) { - $contentScore = 0; - - switch ($this->nodeName) { - case 'div': - $contentScore += 5; - break; - - case 'pre': - case 'td': - case 'blockquote': - $contentScore += 3; - break; - - case 'address': - case 'ol': - case 'ul': - case 'dl': - case 'dd': - case 'dt': - case 'li': - case 'form': - $contentScore -= 3; - break; - - case 'h1': - case 'h2': - case 'h3': - case 'h4': - case 'h5': - case 'h6': - case 'th': - $contentScore -= 5; - break; - } - - $this->contentScore = $contentScore + ($weightClasses ? $this->getClassWeight() : 0); - - $this->initialized = true; - } - - return $this; - } - - /** - * Override for native getAttribute method. Some nodes have the getAttribute method, some don't, so we need - * to check first the existence of the attributes property. - * - * @param $attributeName string Attribute to retrieve - * - * @return string - */ - public function getAttribute($attributeName) - { - if (!is_null($this->attributes)) { - return parent::getAttribute($attributeName); - } - - return ''; - } - - /** - * Override for native hasAttribute. - * - * @see getAttribute - * - * @param $attributeName - * - * @return bool - */ - public function hasAttribute($attributeName) - { - if (!is_null($this->attributes)) { - return parent::hasAttribute($attributeName); - } - - return false; - } - - /** - * Get the ancestors of the current node. - * - * @param int|bool $maxLevel Max amount of ancestors to get. False for all of them - * - * @return array - */ - public function getNodeAncestors($maxLevel = 3) - { - $ancestors = []; - $level = 0; - - $node = $this->parentNode; - - while ($node && !($node instanceof DOMDocument)) { - $ancestors[] = $node; - $level++; - if ($level === $maxLevel) { - break; - } - $node = $node->parentNode; - } - - return $ancestors; - } - - /** - * Returns all links from the current element. - * - * @return array - */ - public function getAllLinks() - { - return iterator_to_array($this->getElementsByTagName('a')); - } - - /** - * Get the density of links as a percentage of the content - * This is the amount of text that is inside a link divided by the total text in the node. - * - * @return int - */ - public function getLinkDensity() - { - $linkLength = 0; - $textLength = mb_strlen($this->getTextContent(true)); - - if (!$textLength) { - return 0; - } - - $links = $this->getAllLinks(); - - if ($links) { - /** @var DOMElement $link */ - foreach ($links as $link) { - $linkLength += mb_strlen($link->getTextContent(true)); - } - } - - return $linkLength / $textLength; - } - - /** - * Calculates the weight of the class/id of the current element. - * - * @return int - */ - public function getClassWeight() - { - $weight = 0; - - // Look for a special classname - $class = $this->getAttribute('class'); - if (trim($class)) { - if (preg_match(NodeUtility::$regexps['negative'], $class)) { - $weight -= 25; - } - - if (preg_match(NodeUtility::$regexps['positive'], $class)) { - $weight += 25; - } - } - - // Look for a special ID - $id = $this->getAttribute('id'); - if (trim($id)) { - if (preg_match(NodeUtility::$regexps['negative'], $id)) { - $weight -= 25; - } - - if (preg_match(NodeUtility::$regexps['positive'], $id)) { - $weight += 25; - } - } - - return $weight; - } - - /** - * Returns the full text of the node. - * - * @param bool $normalize Normalize white space? - * - * @return string - */ - public function getTextContent($normalize = false) - { - $nodeValue = $this->nodeValue; - if ($normalize) { - $nodeValue = trim(preg_replace('/\s{2,}/', ' ', $nodeValue)); - } - - return $nodeValue; - } - - /** - * Returns the children of the current node. - * - * @param bool $filterEmptyDOMText Filter empty DOMText nodes? - * - * @return array - */ - public function getChildren($filterEmptyDOMText = false) - { - $ret = iterator_to_array($this->childNodes); - if ($filterEmptyDOMText) { - // Array values is used to discard the key order. Needs to be 0 to whatever without skipping any number - $ret = array_values(array_filter($ret, function ($node) { - return $node->nodeName !== '#text' || mb_strlen(trim($node->nodeValue)); - })); - } - - return $ret; - } - - /** - * Return an array indicating how many rows and columns this table has. - * - * @return array - */ - public function getRowAndColumnCount() - { - $rows = $columns = 0; - $trs = $this->getElementsByTagName('tr'); - foreach ($trs as $tr) { - /** @var \DOMElement $tr */ - $rowspan = $tr->getAttribute('rowspan'); - $rows += ($rowspan || 1); - - // Now look for column-related info - $columnsInThisRow = 0; - $cells = $tr->getElementsByTagName('td'); - foreach ($cells as $cell) { - /** @var \DOMElement $cell */ - $colspan = $cell->getAttribute('colspan'); - $columnsInThisRow += ($colspan || 1); - } - $columns = max($columns, $columnsInThisRow); - } - - return ['rows' => $rows, 'columns' => $columns]; - } - - /** - * Creates a new node based on the text content of the original node. - * - * @param $originalNode DOMNode - * @param $tagName string - * - * @return DOMElement - */ - public function createNode($originalNode, $tagName) - { - $text = $originalNode->getTextContent(); - $newNode = $originalNode->ownerDocument->createElement($tagName, $text); - - return $newNode; - } - - /** - * Check if a given node has one of its ancestor tag name matching the - * provided one. - * - * @param string $tagName - * @param int $maxDepth - * @param callable $filterFn - * - * @return bool - */ - public function hasAncestorTag($tagName, $maxDepth = 3, callable $filterFn = null) - { - $depth = 0; - $node = $this; - - while ($node->parentNode) { - if ($maxDepth > 0 && $depth > $maxDepth) { - return false; - } - - if ($node->parentNode->nodeName === $tagName && (!$filterFn || $filterFn($node->parentNode))) { - return true; - } - - $node = $node->parentNode; - $depth++; - } - - return false; - } - - /** - * Check if this node has only whitespace and a single element with given tag - * or if it contains no element with given tag or more than 1 element. - * - * @param $tag string Name of tag - * - * @return bool - */ - public function hasSingleTagInsideElement($tag) - { - // There should be exactly 1 element child with given tag - if (count($children = $this->getChildren(true)) !== 1 || $children[0]->nodeName !== $tag) { - return false; - } - - // And there should be no text nodes with real content - return array_reduce($children, function ($carry, $child) { - if (!$carry === false) { - return false; - } - - /* @var DOMNode $child */ - return !($child->nodeType === XML_TEXT_NODE && !preg_match('/\S$/', $child->getTextContent())); - }); - } - - /** - * Check if the current element has a single child block element. - * Block elements are the ones defined in the divToPElements array. - * - * @return bool - */ - public function hasSingleChildBlockElement() - { - $result = false; - if ($this->hasChildNodes()) { - foreach ($this->getChildren() as $child) { - if (in_array($child->nodeName, $this->divToPElements)) { - $result = true; - } else { - // If any of the hasSingleChildBlockElement calls return true, return true then. - /** @var $child DOMElement */ - $result = ($result || $child->hasSingleChildBlockElement()); - } - } - } - - return $result; - } - - /** - * Determines if a node has no content or it is just a bunch of dividing lines and/or whitespace. - * - * @return bool - */ - public function isElementWithoutContent() - { - return $this instanceof DOMElement && - mb_strlen(preg_replace(NodeUtility::$regexps['onlyWhitespace'], '', $this->textContent)) === 0 && - ($this->childNodes->length === 0 || - $this->childNodes->length === $this->getElementsByTagName('br')->length + $this->getElementsByTagName('hr')->length - /* - * Special PHP DOMDocument case: We also need to count how many DOMText we have inside the node. - * If there's an empty tag with an space inside and a BR (for example "


) counting only BRs and - * HRs will will say that the example has 2 nodes, instead of one. This happens because in DOMDocument, - * DOMTexts are also nodes (which doesn't happen in JS). So we need to also count how many DOMText we - * are dealing with (And at this point we know they are empty or are just whitespace, because of the - * mb_strlen in this chain of checks). - */ - + count(array_filter(iterator_to_array($this->childNodes), function ($child) { - return $child instanceof DOMText; - })) - - ); - } - - /** - * Determine if a node qualifies as phrasing content. - * https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Content_categories#Phrasing_content. - * - * @return bool - */ - public function isPhrasingContent() - { - return $this->nodeType === XML_TEXT_NODE || in_array($this->nodeName, $this->phrasing_elems) !== false || - (!is_null($this->childNodes) && - ($this->nodeName === 'a' || $this->nodeName === 'del' || $this->nodeName === 'ins') && - array_reduce(iterator_to_array($this->childNodes), function ($carry, $node) { - return $node->isPhrasingContent() && $carry; - }, true) - ); - } - - public function isProbablyVisible() - { - /* - * In the original JS project they check if the node has the style display=none, which unfortunately - * in our case we have no way of knowing that. So we just check for the attribute hidden or "display: none". - * - * Might be a good idea to check for classes or other attributes like 'aria-hidden' - */ - - return !preg_match('/display:( )?none/', $this->getAttribute('style')) && !$this->hasAttribute('hidden'); - } - - public function isWhitespace() - { - return ($this->nodeType === XML_TEXT_NODE && mb_strlen(trim($this->textContent)) === 0) || - ($this->nodeType === XML_ELEMENT_NODE && $this->nodeName === 'br'); - } - - /** - * This is a hack that overcomes the issue of node shifting when scanning and removing nodes. - * - * In the JS version of getElementsByTagName, if you remove a node it will not appear during the - * foreach. This does not happen in PHP DOMDocument, because if you remove a node, it will still appear but as an - * orphan node and will give an exception if you try to do anything with it. - * - * Shifting also occurs when converting parent nodes (like a P to a DIV), which in that case the found nodes are - * removed from the foreach "pool" but the internal index of the foreach is not aware and skips over nodes that - * never looped over. (index is at position 5, 2 nodes are removed, next one should be node 3, but the foreach tries - * to access node 6) - * - * This function solves this by searching for the nodes on every loop and keeping track of the count differences. - * Because on every loop we call getElementsByTagName again, this could cause a performance impact and should be - * used only when the results of the search are going to be used to remove the nodes. - * - * @param string $tag - * - * @return \Generator - */ - public function shiftingAwareGetElementsByTagName($tag) - { - /** @var $nodes DOMNodeList */ - $nodes = $this->getElementsByTagName($tag); - $count = $nodes->length; - - for ($i = 0; $i < $count; $i = max(++$i, 0)) { - yield $nodes->item($i); - - // Search for all the nodes again - $nodes = $this->getElementsByTagName($tag); - - // Subtract the amount of nodes removed from the current index - $i -= $count - $nodes->length; - - // Subtract the amount of nodes removed from the current count - $count -= ($count - $nodes->length); - } - } -} -- cgit v1.2.3