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<?php
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/**
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* Website: http://sourceforge.net/projects/simplehtmldom/
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* Additional projects: http://sourceforge.net/projects/debugobject/
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* Acknowledge: Jose Solorzano (https://sourceforge.net/projects/php-html/)
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*
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* Licensed under The MIT License
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* See the LICENSE file in the project root for more information.
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*
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* Authors:
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* S.C. Chen
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* John Schlick
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* Rus Carroll
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* logmanoriginal
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*
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* Contributors:
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* Yousuke Kumakura
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* Vadim Voituk
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* Antcs
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*
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* Version Rev. 1.9.1 (291)
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*/
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define('HDOM_TYPE_ELEMENT', 1);
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define('HDOM_TYPE_COMMENT', 2);
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define('HDOM_TYPE_TEXT', 3);
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define('HDOM_TYPE_ENDTAG', 4);
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define('HDOM_TYPE_ROOT', 5);
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define('HDOM_TYPE_UNKNOWN', 6);
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define('HDOM_QUOTE_DOUBLE', 0);
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define('HDOM_QUOTE_SINGLE', 1);
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define('HDOM_QUOTE_NO', 3);
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define('HDOM_INFO_BEGIN', 0);
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define('HDOM_INFO_END', 1);
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define('HDOM_INFO_QUOTE', 2);
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define('HDOM_INFO_SPACE', 3);
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define('HDOM_INFO_TEXT', 4);
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define('HDOM_INFO_INNER', 5);
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define('HDOM_INFO_OUTER', 6);
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define('HDOM_INFO_ENDSPACE', 7);
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defined('DEFAULT_TARGET_CHARSET') || define('DEFAULT_TARGET_CHARSET', 'UTF-8');
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defined('DEFAULT_BR_TEXT') || define('DEFAULT_BR_TEXT', "\r\n");
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defined('DEFAULT_SPAN_TEXT') || define('DEFAULT_SPAN_TEXT', ' ');
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defined('MAX_FILE_SIZE') || define('MAX_FILE_SIZE', 600000);
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define('HDOM_SMARTY_AS_TEXT', 1);
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function file_get_html(
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$url,
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$use_include_path = false,
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$context = null,
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$offset = 0,
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$maxLen = -1,
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$lowercase = true,
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$forceTagsClosed = true,
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$target_charset = DEFAULT_TARGET_CHARSET,
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$stripRN = true,
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$defaultBRText = DEFAULT_BR_TEXT,
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$defaultSpanText = DEFAULT_SPAN_TEXT)
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{
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if($maxLen <= 0) { $maxLen = MAX_FILE_SIZE; }
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$dom = new simple_html_dom(
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null,
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$lowercase,
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$forceTagsClosed,
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$target_charset,
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$stripRN,
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$defaultBRText,
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$defaultSpanText
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);
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/**
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* For sourceforge users: uncomment the next line and comment the
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* retrieve_url_contents line 2 lines down if it is not already done.
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*/
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$arrContextOptions = [
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'ssl' => [
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'verify_peer' => false,
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'verify_peer_name' => false,
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]
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];
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$context = stream_context_create($arrContextOptions);
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$contents = file_get_contents(
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$url,
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$use_include_path,
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$context,
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$offset,
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$maxLen
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);
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// $contents = retrieve_url_contents($url);
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if (empty($contents) || strlen($contents) > $maxLen) {
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$dom->clear();
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return false;
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}
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return $dom->load($contents, $lowercase, $stripRN);
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}
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function str_get_html(
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$str,
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$lowercase = true,
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$forceTagsClosed = true,
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$target_charset = DEFAULT_TARGET_CHARSET,
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$stripRN = true,
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$defaultBRText = DEFAULT_BR_TEXT,
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$defaultSpanText = DEFAULT_SPAN_TEXT)
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{
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$dom = new simple_html_dom(
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null,
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$lowercase,
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$forceTagsClosed,
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$target_charset,
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$stripRN,
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$defaultBRText,
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$defaultSpanText
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);
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if (empty($str) || strlen($str) > MAX_FILE_SIZE) {
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$dom->clear();
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return false;
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}
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return $dom->load($str, $lowercase, $stripRN);
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}
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function dump_html_tree($node, $show_attr = true, $deep = 0)
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{
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$node->dump($node);
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}
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class simple_html_dom_node
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{
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public $nodetype = HDOM_TYPE_TEXT;
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public $tag = 'text';
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public $attr = array();
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public $children = array();
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public $nodes = array();
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public $parent = null;
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public $_ = array();
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public $tag_start = 0;
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private $dom = null;
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function __construct($dom)
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{
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$this->dom = $dom;
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$dom->nodes[] = $this;
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}
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function __destruct()
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{
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$this->clear();
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}
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function __toString()
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{
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return $this->outertext();
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}
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function clear()
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{
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$this->dom = null;
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$this->nodes = null;
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$this->parent = null;
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$this->children = null;
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}
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function dump($show_attr = true, $depth = 0)
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{
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echo str_repeat("\t", $depth) . $this->tag;
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if ($show_attr && count($this->attr) > 0) {
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echo '(';
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foreach ($this->attr as $k => $v) {
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echo "[$k]=>\"$v\", ";
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}
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echo ')';
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}
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echo "\n";
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if ($this->nodes) {
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foreach ($this->nodes as $node) {
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$node->dump($show_attr, $depth + 1);
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}
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}
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}
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function dump_node($echo = true)
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{
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$string = $this->tag;
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if (count($this->attr) > 0) {
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$string .= '(';
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foreach ($this->attr as $k => $v) {
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$string .= "[$k]=>\"$v\", ";
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}
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$string .= ')';
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}
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if (count($this->_) > 0) {
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$string .= ' $_ (';
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foreach ($this->_ as $k => $v) {
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if (is_array($v)) {
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$string .= "[$k]=>(";
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foreach ($v as $k2 => $v2) {
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$string .= "[$k2]=>\"$v2\", ";
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}
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$string .= ')';
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} else {
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$string .= "[$k]=>\"$v\", ";
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}
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}
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$string .= ')';
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}
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if (isset($this->text)) {
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$string .= " text: ({$this->text})";
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}
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$string .= ' HDOM_INNER_INFO: ';
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if (isset($node->_[HDOM_INFO_INNER])) {
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$string .= "'" . $node->_[HDOM_INFO_INNER] . "'";
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} else {
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$string .= ' NULL ';
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}
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$string .= ' children: ' . count($this->children);
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$string .= ' nodes: ' . count($this->nodes);
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$string .= ' tag_start: ' . $this->tag_start;
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$string .= "\n";
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if ($echo) {
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echo $string;
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return;
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} else {
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return $string;
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}
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}
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function parent($parent = null)
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{
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// I am SURE that this doesn't work properly.
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// It fails to unset the current node from it's current parents nodes or
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// children list first.
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if ($parent !== null) {
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$this->parent = $parent;
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$this->parent->nodes[] = $this;
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$this->parent->children[] = $this;
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}
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return $this->parent;
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}
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function has_child()
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{
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return !empty($this->children);
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}
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function children($idx = -1)
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{
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if ($idx === -1) {
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return $this->children;
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}
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if (isset($this->children[$idx])) {
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return $this->children[$idx];
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}
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return null;
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}
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function first_child()
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{
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if (count($this->children) > 0) {
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return $this->children[0];
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}
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return null;
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}
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function last_child()
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{
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if (count($this->children) > 0) {
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return end($this->children);
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}
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return null;
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}
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function next_sibling()
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{
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if ($this->parent === null) {
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return null;
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}
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$idx = array_search($this, $this->parent->children, true);
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if ($idx !== false && isset($this->parent->children[$idx + 1])) {
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return $this->parent->children[$idx + 1];
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}
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return null;
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}
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function prev_sibling()
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{
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if ($this->parent === null) {
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return null;
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}
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$idx = array_search($this, $this->parent->children, true);
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if ($idx !== false && $idx > 0) {
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return $this->parent->children[$idx - 1];
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}
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return null;
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}
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function find_ancestor_tag($tag)
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{
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global $debug_object;
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if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
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if ($this->parent === null) {
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return null;
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}
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$ancestor = $this->parent;
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while (!is_null($ancestor)) {
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if (is_object($debug_object)) {
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$debug_object->debug_log(2, 'Current tag is: ' . $ancestor->tag);
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}
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if ($ancestor->tag === $tag) {
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break;
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}
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$ancestor = $ancestor->parent;
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}
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return $ancestor;
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}
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function innertext()
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{
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if (isset($this->_[HDOM_INFO_INNER])) {
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return $this->_[HDOM_INFO_INNER];
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}
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if (isset($this->_[HDOM_INFO_TEXT])) {
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return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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}
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$ret = '';
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foreach ($this->nodes as $n) {
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$ret .= $n->outertext();
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}
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return $ret;
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}
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function outertext()
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{
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global $debug_object;
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if (is_object($debug_object)) {
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$text = '';
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if ($this->tag === 'text') {
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if (!empty($this->text)) {
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$text = ' with text: ' . $this->text;
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}
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}
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$debug_object->debug_log(1, 'Innertext of tag: ' . $this->tag . $text);
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}
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if ($this->tag === 'root') {
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return $this->innertext();
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}
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// todo: What is the use of this callback? Remove?
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if ($this->dom && $this->dom->callback !== null) {
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call_user_func_array($this->dom->callback, array($this));
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}
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if (isset($this->_[HDOM_INFO_OUTER])) {
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return $this->_[HDOM_INFO_OUTER];
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}
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if (isset($this->_[HDOM_INFO_TEXT])) {
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return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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}
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$ret = '';
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if ($this->dom && $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]) {
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$ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
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}
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if (isset($this->_[HDOM_INFO_INNER])) {
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// todo: <br> should either never have HDOM_INFO_INNER or always
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if ($this->tag !== 'br') {
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$ret .= $this->_[HDOM_INFO_INNER];
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}
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} elseif ($this->nodes) {
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foreach ($this->nodes as $n) {
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$ret .= $this->convert_text($n->outertext());
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}
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}
|
|
|
|
|
|
|
|
if (isset($this->_[HDOM_INFO_END]) && $this->_[HDOM_INFO_END] != 0) {
|
|
|
|
$ret .= '</' . $this->tag . '>';
|
|
|
|
}
|
|
|
|
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
function text()
|
|
|
|
{
|
|
|
|
if (isset($this->_[HDOM_INFO_INNER])) {
|
|
|
|
return $this->_[HDOM_INFO_INNER];
|
|
|
|
}
|
|
|
|
|
|
|
|
switch ($this->nodetype) {
|
|
|
|
case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
|
|
|
|
case HDOM_TYPE_COMMENT: return '';
|
|
|
|
case HDOM_TYPE_UNKNOWN: return '';
|
|
|
|
}
|
|
|
|
|
|
|
|
if (strcasecmp($this->tag, 'script') === 0) { return ''; }
|
|
|
|
if (strcasecmp($this->tag, 'style') === 0) { return ''; }
|
|
|
|
|
|
|
|
$ret = '';
|
|
|
|
|
|
|
|
// In rare cases, (always node type 1 or HDOM_TYPE_ELEMENT - observed
|
|
|
|
// for some span tags, and some p tags) $this->nodes is set to NULL.
|
|
|
|
// NOTE: This indicates that there is a problem where it's set to NULL
|
|
|
|
// without a clear happening.
|
|
|
|
// WHY is this happening?
|
|
|
|
if (!is_null($this->nodes)) {
|
|
|
|
foreach ($this->nodes as $n) {
|
|
|
|
// Start paragraph after a blank line
|
|
|
|
if ($n->tag === 'p') {
|
|
|
|
$ret = trim($ret) . "\n\n";
|
|
|
|
}
|
|
|
|
|
|
|
|
$ret .= $this->convert_text($n->text());
|
|
|
|
|
|
|
|
// If this node is a span... add a space at the end of it so
|
|
|
|
// multiple spans don't run into each other. This is plaintext
|
|
|
|
// after all.
|
|
|
|
if ($n->tag === 'span') {
|
|
|
|
$ret .= $this->dom->default_span_text;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
function xmltext()
|
|
|
|
{
|
|
|
|
$ret = $this->innertext();
|
|
|
|
$ret = str_ireplace('<![CDATA[', '', $ret);
|
|
|
|
$ret = str_replace(']]>', '', $ret);
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
function makeup()
|
|
|
|
{
|
|
|
|
// text, comment, unknown
|
|
|
|
if (isset($this->_[HDOM_INFO_TEXT])) {
|
|
|
|
return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
|
|
|
|
}
|
|
|
|
|
|
|
|
$ret = '<' . $this->tag;
|
|
|
|
$i = -1;
|
|
|
|
|
|
|
|
foreach ($this->attr as $key => $val) {
|
|
|
|
++$i;
|
|
|
|
|
|
|
|
// skip removed attribute
|
|
|
|
if ($val === null || $val === false) { continue; }
|
|
|
|
|
|
|
|
$ret .= $this->_[HDOM_INFO_SPACE][$i][0];
|
|
|
|
|
|
|
|
//no value attr: nowrap, checked selected...
|
|
|
|
if ($val === true) {
|
|
|
|
$ret .= $key;
|
|
|
|
} else {
|
|
|
|
switch ($this->_[HDOM_INFO_QUOTE][$i])
|
|
|
|
{
|
|
|
|
case HDOM_QUOTE_DOUBLE: $quote = '"'; break;
|
|
|
|
case HDOM_QUOTE_SINGLE: $quote = '\''; break;
|
|
|
|
default: $quote = '';
|
|
|
|
}
|
|
|
|
|
|
|
|
$ret .= $key
|
|
|
|
. $this->_[HDOM_INFO_SPACE][$i][1]
|
|
|
|
. '='
|
|
|
|
. $this->_[HDOM_INFO_SPACE][$i][2]
|
|
|
|
. $quote
|
|
|
|
. $val
|
|
|
|
. $quote;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$ret = $this->dom->restore_noise($ret);
|
|
|
|
return $ret . $this->_[HDOM_INFO_ENDSPACE] . '>';
|
|
|
|
}
|
|
|
|
|
|
|
|
function find($selector, $idx = null, $lowercase = false)
|
|
|
|
{
|
|
|
|
$selectors = $this->parse_selector($selector);
|
|
|
|
if (($count = count($selectors)) === 0) { return array(); }
|
|
|
|
$found_keys = array();
|
|
|
|
|
|
|
|
// find each selector
|
|
|
|
for ($c = 0; $c < $count; ++$c) {
|
|
|
|
// The change on the below line was documented on the sourceforge
|
|
|
|
// code tracker id 2788009
|
|
|
|
// used to be: if (($levle=count($selectors[0]))===0) return array();
|
|
|
|
if (($levle = count($selectors[$c])) === 0) { return array(); }
|
|
|
|
if (!isset($this->_[HDOM_INFO_BEGIN])) { return array(); }
|
|
|
|
|
|
|
|
$head = array($this->_[HDOM_INFO_BEGIN] => 1);
|
|
|
|
$cmd = ' '; // Combinator
|
|
|
|
|
|
|
|
// handle descendant selectors, no recursive!
|
|
|
|
for ($l = 0; $l < $levle; ++$l) {
|
|
|
|
$ret = array();
|
|
|
|
|
|
|
|
foreach ($head as $k => $v) {
|
|
|
|
$n = ($k === -1) ? $this->dom->root : $this->dom->nodes[$k];
|
|
|
|
//PaperG - Pass this optional parameter on to the seek function.
|
|
|
|
$n->seek($selectors[$c][$l], $ret, $cmd, $lowercase);
|
|
|
|
}
|
|
|
|
|
|
|
|
$head = $ret;
|
|
|
|
$cmd = $selectors[$c][$l][4]; // Next Combinator
|
|
|
|
}
|
|
|
|
|
|
|
|
foreach ($head as $k => $v) {
|
|
|
|
if (!isset($found_keys[$k])) {
|
|
|
|
$found_keys[$k] = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// sort keys
|
|
|
|
ksort($found_keys);
|
|
|
|
|
|
|
|
$found = array();
|
|
|
|
foreach ($found_keys as $k => $v) {
|
|
|
|
$found[] = $this->dom->nodes[$k];
|
|
|
|
}
|
|
|
|
|
|
|
|
// return nth-element or array
|
|
|
|
if (is_null($idx)) { return $found; }
|
|
|
|
elseif ($idx < 0) { $idx = count($found) + $idx; }
|
|
|
|
return (isset($found[$idx])) ? $found[$idx] : null;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function seek($selector, &$ret, $parent_cmd, $lowercase = false)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
list($tag, $id, $class, $attributes, $cmb) = $selector;
|
|
|
|
$nodes = array();
|
|
|
|
|
|
|
|
if ($parent_cmd === ' ') { // Descendant Combinator
|
|
|
|
// Find parent closing tag if the current element doesn't have a closing
|
|
|
|
// tag (i.e. void element)
|
|
|
|
$end = (!empty($this->_[HDOM_INFO_END])) ? $this->_[HDOM_INFO_END] : 0;
|
|
|
|
if ($end == 0) {
|
|
|
|
$parent = $this->parent;
|
|
|
|
while (!isset($parent->_[HDOM_INFO_END]) && $parent !== null) {
|
|
|
|
$end -= 1;
|
|
|
|
$parent = $parent->parent;
|
|
|
|
}
|
|
|
|
$end += $parent->_[HDOM_INFO_END];
|
|
|
|
}
|
|
|
|
|
|
|
|
// Get list of target nodes
|
|
|
|
$nodes_start = $this->_[HDOM_INFO_BEGIN] + 1;
|
|
|
|
$nodes_count = $end - $nodes_start;
|
|
|
|
$nodes = array_slice($this->dom->nodes, $nodes_start, $nodes_count, true);
|
|
|
|
} elseif ($parent_cmd === '>') { // Child Combinator
|
|
|
|
$nodes = $this->children;
|
|
|
|
} elseif ($parent_cmd === '+'
|
|
|
|
&& $this->parent
|
|
|
|
&& in_array($this, $this->parent->children)) { // Next-Sibling Combinator
|
|
|
|
$index = array_search($this, $this->parent->children, true) + 1;
|
|
|
|
if ($index < count($this->parent->children))
|
|
|
|
$nodes[] = $this->parent->children[$index];
|
|
|
|
} elseif ($parent_cmd === '~'
|
|
|
|
&& $this->parent
|
|
|
|
&& in_array($this, $this->parent->children)) { // Subsequent Sibling Combinator
|
|
|
|
$index = array_search($this, $this->parent->children, true);
|
|
|
|
$nodes = array_slice($this->parent->children, $index);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Go throgh each element starting at this element until the end tag
|
|
|
|
// Note: If this element is a void tag, any previous void element is
|
|
|
|
// skipped.
|
|
|
|
foreach($nodes as $node) {
|
|
|
|
$pass = true;
|
|
|
|
|
|
|
|
// Skip root nodes
|
|
|
|
if(!$node->parent) {
|
|
|
|
$pass = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Handle 'text' selector
|
|
|
|
if($pass && $tag === 'text' && $node->tag === 'text') {
|
|
|
|
$ret[array_search($node, $this->dom->nodes, true)] = 1;
|
|
|
|
unset($node);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Skip if node isn't a child node (i.e. text nodes)
|
|
|
|
if($pass && !in_array($node, $node->parent->children, true)) {
|
|
|
|
$pass = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Skip if tag doesn't match
|
|
|
|
if ($pass && $tag !== '' && $tag !== $node->tag && $tag !== '*') {
|
|
|
|
$pass = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Skip if ID doesn't exist
|
|
|
|
if ($pass && $id !== '' && !isset($node->attr['id'])) {
|
|
|
|
$pass = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check if ID matches
|
|
|
|
if ($pass && $id !== '' && isset($node->attr['id'])) {
|
|
|
|
// Note: Only consider the first ID (as browsers do)
|
|
|
|
$node_id = explode(' ', trim($node->attr['id']))[0];
|
|
|
|
|
|
|
|
if($id !== $node_id) { $pass = false; }
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check if all class(es) exist
|
|
|
|
if ($pass && $class !== '' && is_array($class) && !empty($class)) {
|
|
|
|
if (isset($node->attr['class'])) {
|
|
|
|
$node_classes = explode(' ', $node->attr['class']);
|
|
|
|
|
|
|
|
if ($lowercase) {
|
|
|
|
$node_classes = array_map('strtolower', $node_classes);
|
|
|
|
}
|
|
|
|
|
|
|
|
foreach($class as $c) {
|
|
|
|
if(!in_array($c, $node_classes)) {
|
|
|
|
$pass = false;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
$pass = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check attributes
|
|
|
|
if ($pass
|
|
|
|
&& $attributes !== ''
|
|
|
|
&& is_array($attributes)
|
|
|
|
&& !empty($attributes)) {
|
|
|
|
foreach($attributes as $a) {
|
|
|
|
list (
|
|
|
|
$att_name,
|
|
|
|
$att_expr,
|
|
|
|
$att_val,
|
|
|
|
$att_inv,
|
|
|
|
$att_case_sensitivity
|
|
|
|
) = $a;
|
|
|
|
|
|
|
|
// Handle indexing attributes (i.e. "[2]")
|
|
|
|
/**
|
|
|
|
* Note: This is not supported by the CSS Standard but adds
|
|
|
|
* the ability to select items compatible to XPath (i.e.
|
|
|
|
* the 3rd element within it's parent).
|
|
|
|
*
|
|
|
|
* Note: This doesn't conflict with the CSS Standard which
|
|
|
|
* doesn't work on numeric attributes anyway.
|
|
|
|
*/
|
|
|
|
if (is_numeric($att_name)
|
|
|
|
&& $att_expr === ''
|
|
|
|
&& $att_val === '') {
|
|
|
|
$count = 0;
|
|
|
|
|
|
|
|
// Find index of current element in parent
|
|
|
|
foreach ($node->parent->children as $c) {
|
|
|
|
if ($c->tag === $node->tag) ++$count;
|
|
|
|
if ($c === $node) break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If this is the correct node, continue with next
|
|
|
|
// attribute
|
|
|
|
if ($count === (int)$att_name) continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check attribute availability
|
|
|
|
if ($att_inv) { // Attribute should NOT be set
|
|
|
|
if (isset($node->attr[$att_name])) {
|
|
|
|
$pass = false;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else { // Attribute should be set
|
|
|
|
// todo: "plaintext" is not a valid CSS selector!
|
|
|
|
if ($att_name !== 'plaintext'
|
|
|
|
&& !isset($node->attr[$att_name])) {
|
|
|
|
$pass = false;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Continue with next attribute if expression isn't defined
|
|
|
|
if ($att_expr === '') continue;
|
|
|
|
|
|
|
|
// If they have told us that this is a "plaintext"
|
|
|
|
// search then we want the plaintext of the node - right?
|
|
|
|
// todo "plaintext" is not a valid CSS selector!
|
|
|
|
if ($att_name === 'plaintext') {
|
|
|
|
$nodeKeyValue = $node->text();
|
|
|
|
} else {
|
|
|
|
$nodeKeyValue = $node->attr[$att_name];
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2,
|
|
|
|
'testing node: '
|
|
|
|
. $node->tag
|
|
|
|
. ' for attribute: '
|
|
|
|
. $att_name
|
|
|
|
. $att_expr
|
|
|
|
. $att_val
|
|
|
|
. ' where nodes value is: '
|
|
|
|
. $nodeKeyValue
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
// If lowercase is set, do a case insensitive test of
|
|
|
|
// the value of the selector.
|
|
|
|
if ($lowercase) {
|
|
|
|
$check = $this->match(
|
|
|
|
$att_expr,
|
|
|
|
strtolower($att_val),
|
|
|
|
strtolower($nodeKeyValue),
|
|
|
|
$att_case_sensitivity
|
|
|
|
);
|
|
|
|
} else {
|
|
|
|
$check = $this->match(
|
|
|
|
$att_expr,
|
|
|
|
$att_val,
|
|
|
|
$nodeKeyValue,
|
|
|
|
$att_case_sensitivity
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2,
|
|
|
|
'after match: '
|
|
|
|
. ($check ? 'true' : 'false')
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!$check) {
|
|
|
|
$pass = false;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Found a match. Add to list and clear node
|
|
|
|
if ($pass) $ret[$node->_[HDOM_INFO_BEGIN]] = 1;
|
|
|
|
unset($node);
|
|
|
|
}
|
|
|
|
// It's passed by reference so this is actually what this function returns.
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(1, 'EXIT - ret: ', $ret);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function match($exp, $pattern, $value, $case_sensitivity)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) {$debug_object->debug_log_entry(1);}
|
|
|
|
|
|
|
|
if ($case_sensitivity === 'i') {
|
|
|
|
$pattern = strtolower($pattern);
|
|
|
|
$value = strtolower($value);
|
|
|
|
}
|
|
|
|
|
|
|
|
switch ($exp) {
|
|
|
|
case '=':
|
|
|
|
return ($value === $pattern);
|
|
|
|
case '!=':
|
|
|
|
return ($value !== $pattern);
|
|
|
|
case '^=':
|
|
|
|
return preg_match('/^' . preg_quote($pattern, '/') . '/', $value);
|
|
|
|
case '$=':
|
|
|
|
return preg_match('/' . preg_quote($pattern, '/') . '$/', $value);
|
|
|
|
case '*=':
|
|
|
|
return preg_match('/' . preg_quote($pattern, '/') . '/', $value);
|
|
|
|
case '|=':
|
|
|
|
/**
|
|
|
|
* [att|=val]
|
|
|
|
*
|
|
|
|
* Represents an element with the att attribute, its value
|
|
|
|
* either being exactly "val" or beginning with "val"
|
|
|
|
* immediately followed by "-" (U+002D).
|
|
|
|
*/
|
|
|
|
return strpos($value, $pattern) === 0;
|
|
|
|
case '~=':
|
|
|
|
/**
|
|
|
|
* [att~=val]
|
|
|
|
*
|
|
|
|
* Represents an element with the att attribute whose value is a
|
|
|
|
* whitespace-separated list of words, one of which is exactly
|
|
|
|
* "val". If "val" contains whitespace, it will never represent
|
|
|
|
* anything (since the words are separated by spaces). Also if
|
|
|
|
* "val" is the empty string, it will never represent anything.
|
|
|
|
*/
|
|
|
|
return in_array($pattern, explode(' ', trim($value)), true);
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function parse_selector($selector_string)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Pattern of CSS selectors, modified from mootools (https://mootools.net/)
|
|
|
|
*
|
|
|
|
* Paperg: Add the colon to the attribute, so that it properly finds
|
|
|
|
* <tag attr:ibute="something" > like google does.
|
|
|
|
*
|
|
|
|
* Note: if you try to look at this attribute, you MUST use getAttribute
|
|
|
|
* since $dom->x:y will fail the php syntax check.
|
|
|
|
*
|
|
|
|
* Notice the \[ starting the attribute? and the @? following? This
|
|
|
|
* implies that an attribute can begin with an @ sign that is not
|
|
|
|
* captured. This implies that an html attribute specifier may start
|
|
|
|
* with an @ sign that is NOT captured by the expression. Farther study
|
|
|
|
* is required to determine of this should be documented or removed.
|
|
|
|
*
|
|
|
|
* Matches selectors in this order:
|
|
|
|
*
|
|
|
|
* [0] - full match
|
|
|
|
*
|
|
|
|
* [1] - tag name
|
|
|
|
* ([\w:\*-]*)
|
|
|
|
* Matches the tag name consisting of zero or more words, colons,
|
|
|
|
* asterisks and hyphens.
|
|
|
|
*
|
|
|
|
* [2] - id name
|
|
|
|
* (?:\#([\w-]+))
|
|
|
|
* Optionally matches a id name, consisting of an "#" followed by
|
|
|
|
* the id name (one or more words and hyphens).
|
|
|
|
*
|
|
|
|
* [3] - class names (including dots)
|
|
|
|
* (?:\.([\w\.-]+))?
|
|
|
|
* Optionally matches a list of classs, consisting of an "."
|
|
|
|
* followed by the class name (one or more words and hyphens)
|
|
|
|
* where multiple classes can be chained (i.e. ".foo.bar.baz")
|
|
|
|
*
|
|
|
|
* [4] - attributes
|
|
|
|
* ((?:\[@?(?:!?[\w:-]+)(?:(?:[!*^$|~]?=)[\"']?(?:.*?)[\"']?)?(?:\s*?(?:[iIsS])?)?\])+)?
|
|
|
|
* Optionally matches the attributes list
|
|
|
|
*
|
|
|
|
* [5] - separator
|
|
|
|
* ([\/, >+~]+)
|
|
|
|
* Matches the selector list separator
|
|
|
|
*/
|
|
|
|
// phpcs:ignore Generic.Files.LineLength
|
|
|
|
$pattern = "/([\w:\*-]*)(?:\#([\w-]+))?(?:|\.([\w\.-]+))?((?:\[@?(?:!?[\w:-]+)(?:(?:[!*^$|~]?=)[\"']?(?:.*?)[\"']?)?(?:\s*?(?:[iIsS])?)?\])+)?([\/, >+~]+)/is";
|
|
|
|
|
|
|
|
preg_match_all(
|
|
|
|
$pattern,
|
|
|
|
trim($selector_string) . ' ', // Add final ' ' as pseudo separator
|
|
|
|
$matches,
|
|
|
|
PREG_SET_ORDER
|
|
|
|
);
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'Matches Array: ', $matches);
|
|
|
|
}
|
|
|
|
|
|
|
|
$selectors = array();
|
|
|
|
$result = array();
|
|
|
|
|
|
|
|
foreach ($matches as $m) {
|
|
|
|
$m[0] = trim($m[0]);
|
|
|
|
|
|
|
|
// Skip NoOps
|
|
|
|
if ($m[0] === '' || $m[0] === '/' || $m[0] === '//') { continue; }
|
|
|
|
|
|
|
|
// Convert to lowercase
|
|
|
|
if ($this->dom->lowercase) {
|
|
|
|
$m[1] = strtolower($m[1]);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Extract classes
|
|
|
|
if ($m[3] !== '') { $m[3] = explode('.', $m[3]); }
|
|
|
|
|
|
|
|
/* Extract attributes (pattern based on the pattern above!)
|
|
|
|
|
|
|
|
* [0] - full match
|
|
|
|
* [1] - attribute name
|
|
|
|
* [2] - attribute expression
|
|
|
|
* [3] - attribute value
|
|
|
|
* [4] - case sensitivity
|
|
|
|
*
|
|
|
|
* Note: Attributes can be negated with a "!" prefix to their name
|
|
|
|
*/
|
|
|
|
if($m[4] !== '') {
|
|
|
|
preg_match_all(
|
|
|
|
"/\[@?(!?[\w:-]+)(?:([!*^$|~]?=)[\"']?(.*?)[\"']?)?(?:\s+?([iIsS])?)?\]/is",
|
|
|
|
trim($m[4]),
|
|
|
|
$attributes,
|
|
|
|
PREG_SET_ORDER
|
|
|
|
);
|
|
|
|
|
|
|
|
// Replace element by array
|
|
|
|
$m[4] = array();
|
|
|
|
|
|
|
|
foreach($attributes as $att) {
|
|
|
|
// Skip empty matches
|
|
|
|
if(trim($att[0]) === '') { continue; }
|
|
|
|
|
|
|
|
$inverted = (isset($att[1][0]) && $att[1][0] === '!');
|
|
|
|
$m[4][] = array(
|
|
|
|
$inverted ? substr($att[1], 1) : $att[1], // Name
|
|
|
|
(isset($att[2])) ? $att[2] : '', // Expression
|
|
|
|
(isset($att[3])) ? $att[3] : '', // Value
|
|
|
|
$inverted, // Inverted Flag
|
|
|
|
(isset($att[4])) ? strtolower($att[4]) : '', // Case-Sensitivity
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Sanitize Separator
|
|
|
|
if ($m[5] !== '' && trim($m[5]) === '') { // Descendant Separator
|
|
|
|
$m[5] = ' ';
|
|
|
|
} else { // Other Separator
|
|
|
|
$m[5] = trim($m[5]);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Clear Separator if it's a Selector List
|
|
|
|
if ($is_list = ($m[5] === ',')) { $m[5] = ''; }
|
|
|
|
|
|
|
|
// Remove full match before adding to results
|
|
|
|
array_shift($m);
|
|
|
|
$result[] = $m;
|
|
|
|
|
|
|
|
if ($is_list) { // Selector List
|
|
|
|
$selectors[] = $result;
|
|
|
|
$result = array();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (count($result) > 0) { $selectors[] = $result; }
|
|
|
|
return $selectors;
|
|
|
|
}
|
|
|
|
|
|
|
|
function __get($name)
|
|
|
|
{
|
|
|
|
if (isset($this->attr[$name])) {
|
|
|
|
return $this->convert_text($this->attr[$name]);
|
|
|
|
}
|
|
|
|
switch ($name) {
|
|
|
|
case 'outertext': return $this->outertext();
|
|
|
|
case 'innertext': return $this->innertext();
|
|
|
|
case 'plaintext': return $this->text();
|
|
|
|
case 'xmltext': return $this->xmltext();
|
|
|
|
default: return array_key_exists($name, $this->attr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function __set($name, $value)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
switch ($name) {
|
|
|
|
case 'outertext': return $this->_[HDOM_INFO_OUTER] = $value;
|
|
|
|
case 'innertext':
|
|
|
|
if (isset($this->_[HDOM_INFO_TEXT])) {
|
|
|
|
return $this->_[HDOM_INFO_TEXT] = $value;
|
|
|
|
}
|
|
|
|
return $this->_[HDOM_INFO_INNER] = $value;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!isset($this->attr[$name])) {
|
|
|
|
$this->_[HDOM_INFO_SPACE][] = array(' ', '', '');
|
|
|
|
$this->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_DOUBLE;
|
|
|
|
}
|
|
|
|
|
|
|
|
$this->attr[$name] = $value;
|
|
|
|
}
|
|
|
|
|
|
|
|
function __isset($name)
|
|
|
|
{
|
|
|
|
switch ($name) {
|
|
|
|
case 'outertext': return true;
|
|
|
|
case 'innertext': return true;
|
|
|
|
case 'plaintext': return true;
|
|
|
|
}
|
|
|
|
//no value attr: nowrap, checked selected...
|
|
|
|
return (array_key_exists($name, $this->attr)) ? true : isset($this->attr[$name]);
|
|
|
|
}
|
|
|
|
|
|
|
|
function __unset($name)
|
|
|
|
{
|
|
|
|
if (isset($this->attr[$name])) { unset($this->attr[$name]); }
|
|
|
|
}
|
|
|
|
|
|
|
|
function convert_text($text)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
$converted_text = $text;
|
|
|
|
|
|
|
|
$sourceCharset = '';
|
|
|
|
$targetCharset = '';
|
|
|
|
|
|
|
|
if ($this->dom) {
|
|
|
|
$sourceCharset = strtoupper($this->dom->_charset);
|
|
|
|
$targetCharset = strtoupper($this->dom->_target_charset);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(3,
|
|
|
|
'source charset: '
|
|
|
|
. $sourceCharset
|
|
|
|
. ' target charaset: '
|
|
|
|
. $targetCharset
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!empty($sourceCharset)
|
|
|
|
&& !empty($targetCharset)
|
|
|
|
&& (strcasecmp($sourceCharset, $targetCharset) != 0)) {
|
|
|
|
// Check if the reported encoding could have been incorrect and the text is actually already UTF-8
|
|
|
|
if ((strcasecmp($targetCharset, 'UTF-8') == 0)
|
|
|
|
&& ($this->is_utf8($text))) {
|
|
|
|
$converted_text = $text;
|
|
|
|
} else {
|
|
|
|
$converted_text = iconv($sourceCharset, $targetCharset, $text);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Lets make sure that we don't have that silly BOM issue with any of the utf-8 text we output.
|
|
|
|
if ($targetCharset === 'UTF-8') {
|
|
|
|
if (substr($converted_text, 0, 3) === "\xef\xbb\xbf") {
|
|
|
|
$converted_text = substr($converted_text, 3);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (substr($converted_text, -3) === "\xef\xbb\xbf") {
|
|
|
|
$converted_text = substr($converted_text, 0, -3);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return $converted_text;
|
|
|
|
}
|
|
|
|
|
|
|
|
static function is_utf8($str)
|
|
|
|
{
|
|
|
|
$c = 0; $b = 0;
|
|
|
|
$bits = 0;
|
|
|
|
$len = strlen($str);
|
|
|
|
for($i = 0; $i < $len; $i++) {
|
|
|
|
$c = ord($str[$i]);
|
|
|
|
if($c > 128) {
|
|
|
|
if(($c >= 254)) { return false; }
|
|
|
|
elseif($c >= 252) { $bits = 6; }
|
|
|
|
elseif($c >= 248) { $bits = 5; }
|
|
|
|
elseif($c >= 240) { $bits = 4; }
|
|
|
|
elseif($c >= 224) { $bits = 3; }
|
|
|
|
elseif($c >= 192) { $bits = 2; }
|
|
|
|
else { return false; }
|
|
|
|
if(($i + $bits) > $len) { return false; }
|
|
|
|
while($bits > 1) {
|
|
|
|
$i++;
|
|
|
|
$b = ord($str[$i]);
|
|
|
|
if($b < 128 || $b > 191) { return false; }
|
|
|
|
$bits--;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
function get_display_size()
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
|
|
|
|
$width = -1;
|
|
|
|
$height = -1;
|
|
|
|
|
|
|
|
if ($this->tag !== 'img') {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// See if there is aheight or width attribute in the tag itself.
|
|
|
|
if (isset($this->attr['width'])) {
|
|
|
|
$width = $this->attr['width'];
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($this->attr['height'])) {
|
|
|
|
$height = $this->attr['height'];
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now look for an inline style.
|
|
|
|
if (isset($this->attr['style'])) {
|
|
|
|
// Thanks to user gnarf from stackoverflow for this regular expression.
|
|
|
|
$attributes = array();
|
|
|
|
|
|
|
|
preg_match_all(
|
|
|
|
'/([\w-]+)\s*:\s*([^;]+)\s*;?/',
|
|
|
|
$this->attr['style'],
|
|
|
|
$matches,
|
|
|
|
PREG_SET_ORDER
|
|
|
|
);
|
|
|
|
|
|
|
|
foreach ($matches as $match) {
|
|
|
|
$attributes[$match[1]] = $match[2];
|
|
|
|
}
|
|
|
|
|
|
|
|
// If there is a width in the style attributes:
|
|
|
|
if (isset($attributes['width']) && $width == -1) {
|
|
|
|
// check that the last two characters are px (pixels)
|
|
|
|
if (strtolower(substr($attributes['width'], -2)) === 'px') {
|
|
|
|
$proposed_width = substr($attributes['width'], 0, -2);
|
|
|
|
// Now make sure that it's an integer and not something stupid.
|
|
|
|
if (filter_var($proposed_width, FILTER_VALIDATE_INT)) {
|
|
|
|
$width = $proposed_width;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// If there is a width in the style attributes:
|
|
|
|
if (isset($attributes['height']) && $height == -1) {
|
|
|
|
// check that the last two characters are px (pixels)
|
|
|
|
if (strtolower(substr($attributes['height'], -2)) == 'px') {
|
|
|
|
$proposed_height = substr($attributes['height'], 0, -2);
|
|
|
|
// Now make sure that it's an integer and not something stupid.
|
|
|
|
if (filter_var($proposed_height, FILTER_VALIDATE_INT)) {
|
|
|
|
$height = $proposed_height;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
// Future enhancement:
|
|
|
|
// Look in the tag to see if there is a class or id specified that has
|
|
|
|
// a height or width attribute to it.
|
|
|
|
|
|
|
|
// Far future enhancement
|
|
|
|
// Look at all the parent tags of this image to see if they specify a
|
|
|
|
// class or id that has an img selector that specifies a height or width
|
|
|
|
// Note that in this case, the class or id will have the img subselector
|
|
|
|
// for it to apply to the image.
|
|
|
|
|
|
|
|
// ridiculously far future development
|
|
|
|
// If the class or id is specified in a SEPARATE css file thats not on
|
|
|
|
// the page, go get it and do what we were just doing for the ones on
|
|
|
|
// the page.
|
|
|
|
|
|
|
|
$result = array(
|
|
|
|
'height' => $height,
|
|
|
|
'width' => $width
|
|
|
|
);
|
|
|
|
|
|
|
|
return $result;
|
|
|
|
}
|
|
|
|
|
|
|
|
function save($filepath = '')
|
|
|
|
{
|
|
|
|
$ret = $this->outertext();
|
|
|
|
|
|
|
|
if ($filepath !== '') {
|
|
|
|
file_put_contents($filepath, $ret, LOCK_EX);
|
|
|
|
}
|
|
|
|
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
function addClass($class)
|
|
|
|
{
|
|
|
|
if (is_string($class)) {
|
|
|
|
$class = explode(' ', $class);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_array($class)) {
|
|
|
|
foreach($class as $c) {
|
|
|
|
if (isset($this->class)) {
|
|
|
|
if ($this->hasClass($c)) {
|
|
|
|
continue;
|
|
|
|
} else {
|
|
|
|
$this->class .= ' ' . $c;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
$this->class = $c;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'Invalid type: ', gettype($class));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function hasClass($class)
|
|
|
|
{
|
|
|
|
if (is_string($class)) {
|
|
|
|
if (isset($this->class)) {
|
|
|
|
return in_array($class, explode(' ', $this->class), true);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'Invalid type: ', gettype($class));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
function removeClass($class = null)
|
|
|
|
{
|
|
|
|
if (!isset($this->class)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_null($class)) {
|
|
|
|
$this->removeAttribute('class');
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_string($class)) {
|
|
|
|
$class = explode(' ', $class);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_array($class)) {
|
|
|
|
$class = array_diff(explode(' ', $this->class), $class);
|
|
|
|
if (empty($class)) {
|
|
|
|
$this->removeAttribute('class');
|
|
|
|
} else {
|
|
|
|
$this->class = implode(' ', $class);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function getAllAttributes()
|
|
|
|
{
|
|
|
|
return $this->attr;
|
|
|
|
}
|
|
|
|
|
|
|
|
function getAttribute($name)
|
|
|
|
{
|
|
|
|
return $this->__get($name);
|
|
|
|
}
|
|
|
|
|
|
|
|
function setAttribute($name, $value)
|
|
|
|
{
|
|
|
|
$this->__set($name, $value);
|
|
|
|
}
|
|
|
|
|
|
|
|
function hasAttribute($name)
|
|
|
|
{
|
|
|
|
return $this->__isset($name);
|
|
|
|
}
|
|
|
|
|
|
|
|
function removeAttribute($name)
|
|
|
|
{
|
|
|
|
$this->__set($name, null);
|
|
|
|
}
|
|
|
|
|
|
|
|
function remove()
|
|
|
|
{
|
|
|
|
if ($this->parent) {
|
|
|
|
$this->parent->removeChild($this);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function removeChild($node)
|
|
|
|
{
|
|
|
|
$nidx = array_search($node, $this->nodes, true);
|
|
|
|
$cidx = array_search($node, $this->children, true);
|
|
|
|
$didx = array_search($node, $this->dom->nodes, true);
|
|
|
|
|
|
|
|
if ($nidx !== false && $cidx !== false && $didx !== false) {
|
|
|
|
|
|
|
|
foreach($node->children as $child) {
|
|
|
|
$node->removeChild($child);
|
|
|
|
}
|
|
|
|
|
|
|
|
foreach($node->nodes as $entity) {
|
|
|
|
$enidx = array_search($entity, $node->nodes, true);
|
|
|
|
$edidx = array_search($entity, $node->dom->nodes, true);
|
|
|
|
|
|
|
|
if ($enidx !== false && $edidx !== false) {
|
|
|
|
unset($node->nodes[$enidx]);
|
|
|
|
unset($node->dom->nodes[$edidx]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
unset($this->nodes[$nidx]);
|
|
|
|
unset($this->children[$cidx]);
|
|
|
|
unset($this->dom->nodes[$didx]);
|
|
|
|
|
|
|
|
$node->clear();
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementById($id)
|
|
|
|
{
|
|
|
|
return $this->find("#$id", 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementsById($id, $idx = null)
|
|
|
|
{
|
|
|
|
return $this->find("#$id", $idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementByTagName($name)
|
|
|
|
{
|
|
|
|
return $this->find($name, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementsByTagName($name, $idx = null)
|
|
|
|
{
|
|
|
|
return $this->find($name, $idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
function parentNode()
|
|
|
|
{
|
|
|
|
return $this->parent();
|
|
|
|
}
|
|
|
|
|
|
|
|
function childNodes($idx = -1)
|
|
|
|
{
|
|
|
|
return $this->children($idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
function firstChild()
|
|
|
|
{
|
|
|
|
return $this->first_child();
|
|
|
|
}
|
|
|
|
|
|
|
|
function lastChild()
|
|
|
|
{
|
|
|
|
return $this->last_child();
|
|
|
|
}
|
|
|
|
|
|
|
|
function nextSibling()
|
|
|
|
{
|
|
|
|
return $this->next_sibling();
|
|
|
|
}
|
|
|
|
|
|
|
|
function previousSibling()
|
|
|
|
{
|
|
|
|
return $this->prev_sibling();
|
|
|
|
}
|
|
|
|
|
|
|
|
function hasChildNodes()
|
|
|
|
{
|
|
|
|
return $this->has_child();
|
|
|
|
}
|
|
|
|
|
|
|
|
function nodeName()
|
|
|
|
{
|
|
|
|
return $this->tag;
|
|
|
|
}
|
|
|
|
|
|
|
|
function appendChild($node)
|
|
|
|
{
|
|
|
|
$node->parent($this);
|
|
|
|
return $node;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
class simple_html_dom
|
|
|
|
{
|
|
|
|
public $root = null;
|
|
|
|
public $nodes = array();
|
|
|
|
public $callback = null;
|
|
|
|
public $lowercase = false;
|
|
|
|
public $original_size;
|
|
|
|
public $size;
|
|
|
|
|
|
|
|
protected $pos;
|
|
|
|
protected $doc;
|
|
|
|
protected $char;
|
|
|
|
|
|
|
|
protected $cursor;
|
|
|
|
protected $parent;
|
|
|
|
protected $noise = array();
|
|
|
|
protected $token_blank = " \t\r\n";
|
|
|
|
protected $token_equal = ' =/>';
|
|
|
|
protected $token_slash = " />\r\n\t";
|
|
|
|
protected $token_attr = ' >';
|
|
|
|
|
|
|
|
public $_charset = '';
|
|
|
|
public $_target_charset = '';
|
|
|
|
|
|
|
|
protected $default_br_text = '';
|
|
|
|
|
|
|
|
public $default_span_text = '';
|
|
|
|
|
|
|
|
protected $self_closing_tags = array(
|
|
|
|
'area' => 1,
|
|
|
|
'base' => 1,
|
|
|
|
'br' => 1,
|
|
|
|
'col' => 1,
|
|
|
|
'embed' => 1,
|
|
|
|
'hr' => 1,
|
|
|
|
'img' => 1,
|
|
|
|
'input' => 1,
|
|
|
|
'link' => 1,
|
|
|
|
'meta' => 1,
|
|
|
|
'param' => 1,
|
|
|
|
'source' => 1,
|
|
|
|
'track' => 1,
|
|
|
|
'wbr' => 1
|
|
|
|
);
|
|
|
|
protected $block_tags = array(
|
|
|
|
'body' => 1,
|
|
|
|
'div' => 1,
|
|
|
|
'form' => 1,
|
|
|
|
'root' => 1,
|
|
|
|
'span' => 1,
|
|
|
|
'table' => 1
|
|
|
|
);
|
|
|
|
protected $optional_closing_tags = array(
|
|
|
|
// Not optional, see
|
|
|
|
// https://www.w3.org/TR/html/textlevel-semantics.html#the-b-element
|
|
|
|
'b' => array('b' => 1),
|
|
|
|
'dd' => array('dd' => 1, 'dt' => 1),
|
|
|
|
// Not optional, see
|
|
|
|
// https://www.w3.org/TR/html/grouping-content.html#the-dl-element
|
|
|
|
'dl' => array('dd' => 1, 'dt' => 1),
|
|
|
|
'dt' => array('dd' => 1, 'dt' => 1),
|
|
|
|
'li' => array('li' => 1),
|
|
|
|
'optgroup' => array('optgroup' => 1, 'option' => 1),
|
|
|
|
'option' => array('optgroup' => 1, 'option' => 1),
|
|
|
|
'p' => array('p' => 1),
|
|
|
|
'rp' => array('rp' => 1, 'rt' => 1),
|
|
|
|
'rt' => array('rp' => 1, 'rt' => 1),
|
|
|
|
'td' => array('td' => 1, 'th' => 1),
|
|
|
|
'th' => array('td' => 1, 'th' => 1),
|
|
|
|
'tr' => array('td' => 1, 'th' => 1, 'tr' => 1),
|
|
|
|
);
|
|
|
|
|
|
|
|
function __construct(
|
|
|
|
$str = null,
|
|
|
|
$lowercase = true,
|
|
|
|
$forceTagsClosed = true,
|
|
|
|
$target_charset = DEFAULT_TARGET_CHARSET,
|
|
|
|
$stripRN = true,
|
|
|
|
$defaultBRText = DEFAULT_BR_TEXT,
|
|
|
|
$defaultSpanText = DEFAULT_SPAN_TEXT,
|
|
|
|
$options = 0)
|
|
|
|
{
|
|
|
|
if ($str) {
|
|
|
|
if (preg_match('/^http:\/\//i', $str) || is_file($str)) {
|
|
|
|
$this->load_file($str);
|
|
|
|
} else {
|
|
|
|
$this->load(
|
|
|
|
$str,
|
|
|
|
$lowercase,
|
|
|
|
$stripRN,
|
|
|
|
$defaultBRText,
|
|
|
|
$defaultSpanText,
|
|
|
|
$options
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Forcing tags to be closed implies that we don't trust the html, but
|
|
|
|
// it can lead to parsing errors if we SHOULD trust the html.
|
|
|
|
if (!$forceTagsClosed) {
|
|
|
|
$this->optional_closing_array = array();
|
|
|
|
}
|
|
|
|
|
|
|
|
$this->_target_charset = $target_charset;
|
|
|
|
}
|
|
|
|
|
|
|
|
function __destruct()
|
|
|
|
{
|
|
|
|
$this->clear();
|
|
|
|
}
|
|
|
|
|
|
|
|
function load(
|
|
|
|
$str,
|
|
|
|
$lowercase = true,
|
|
|
|
$stripRN = true,
|
|
|
|
$defaultBRText = DEFAULT_BR_TEXT,
|
|
|
|
$defaultSpanText = DEFAULT_SPAN_TEXT,
|
|
|
|
$options = 0)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
|
|
|
|
// prepare
|
|
|
|
$this->prepare($str, $lowercase, $defaultBRText, $defaultSpanText);
|
|
|
|
|
|
|
|
// Per sourceforge http://sourceforge.net/tracker/?func=detail&aid=2949097&group_id=218559&atid=1044037
|
|
|
|
// Script tags removal now preceeds style tag removal.
|
|
|
|
// strip out <script> tags
|
|
|
|
$this->remove_noise("'<\s*script[^>]*[^/]>(.*?)<\s*/\s*script\s*>'is");
|
|
|
|
$this->remove_noise("'<\s*script\s*>(.*?)<\s*/\s*script\s*>'is");
|
|
|
|
|
|
|
|
// strip out the \r \n's if we are told to.
|
|
|
|
if ($stripRN) {
|
|
|
|
$this->doc = str_replace("\r", ' ', $this->doc);
|
|
|
|
$this->doc = str_replace("\n", ' ', $this->doc);
|
|
|
|
|
|
|
|
// set the length of content since we have changed it.
|
|
|
|
$this->size = strlen($this->doc);
|
|
|
|
}
|
|
|
|
|
|
|
|
// strip out cdata
|
|
|
|
$this->remove_noise("'<!\[CDATA\[(.*?)\]\]>'is", true);
|
|
|
|
// strip out comments
|
|
|
|
$this->remove_noise("'<!--(.*?)-->'is");
|
|
|
|
// strip out <style> tags
|
|
|
|
$this->remove_noise("'<\s*style[^>]*[^/]>(.*?)<\s*/\s*style\s*>'is");
|
|
|
|
$this->remove_noise("'<\s*style\s*>(.*?)<\s*/\s*style\s*>'is");
|
|
|
|
// strip out preformatted tags
|
|
|
|
$this->remove_noise("'<\s*(?:code)[^>]*>(.*?)<\s*/\s*(?:code)\s*>'is");
|
|
|
|
// strip out server side scripts
|
|
|
|
$this->remove_noise("'(<\?)(.*?)(\?>)'s", true);
|
|
|
|
|
|
|
|
if($options & HDOM_SMARTY_AS_TEXT) { // Strip Smarty scripts
|
|
|
|
$this->remove_noise("'(\{\w)(.*?)(\})'s", true);
|
|
|
|
}
|
|
|
|
|
|
|
|
// parsing
|
|
|
|
$this->parse();
|
|
|
|
// end
|
|
|
|
$this->root->_[HDOM_INFO_END] = $this->cursor;
|
|
|
|
$this->parse_charset();
|
|
|
|
|
|
|
|
// make load function chainable
|
|
|
|
return $this;
|
|
|
|
}
|
|
|
|
|
|
|
|
function load_file()
|
|
|
|
{
|
|
|
|
$args = func_get_args();
|
|
|
|
|
|
|
|
if(($doc = call_user_func_array('file_get_contents', $args)) !== false) {
|
|
|
|
$this->load($doc, true);
|
|
|
|
} else {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function set_callback($function_name)
|
|
|
|
{
|
|
|
|
$this->callback = $function_name;
|
|
|
|
}
|
|
|
|
|
|
|
|
function remove_callback()
|
|
|
|
{
|
|
|
|
$this->callback = null;
|
|
|
|
}
|
|
|
|
|
|
|
|
function save($filepath = '')
|
|
|
|
{
|
|
|
|
$ret = $this->root->innertext();
|
|
|
|
if ($filepath !== '') { file_put_contents($filepath, $ret, LOCK_EX); }
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
function find($selector, $idx = null, $lowercase = false)
|
|
|
|
{
|
|
|
|
return $this->root->find($selector, $idx, $lowercase);
|
|
|
|
}
|
|
|
|
|
|
|
|
function clear()
|
|
|
|
{
|
|
|
|
if (isset($this->nodes)) {
|
|
|
|
foreach ($this->nodes as $n) {
|
|
|
|
$n->clear();
|
|
|
|
$n = null;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// This add next line is documented in the sourceforge repository.
|
|
|
|
// 2977248 as a fix for ongoing memory leaks that occur even with the
|
|
|
|
// use of clear.
|
|
|
|
if (isset($this->children)) {
|
|
|
|
foreach ($this->children as $n) {
|
|
|
|
$n->clear();
|
|
|
|
$n = null;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($this->parent)) {
|
|
|
|
$this->parent->clear();
|
|
|
|
unset($this->parent);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($this->root)) {
|
|
|
|
$this->root->clear();
|
|
|
|
unset($this->root);
|
|
|
|
}
|
|
|
|
|
|
|
|
unset($this->doc);
|
|
|
|
unset($this->noise);
|
|
|
|
}
|
|
|
|
|
|
|
|
function dump($show_attr = true)
|
|
|
|
{
|
|
|
|
$this->root->dump($show_attr);
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function prepare(
|
|
|
|
$str, $lowercase = true,
|
|
|
|
$defaultBRText = DEFAULT_BR_TEXT,
|
|
|
|
$defaultSpanText = DEFAULT_SPAN_TEXT)
|
|
|
|
{
|
|
|
|
$this->clear();
|
|
|
|
|
|
|
|
$this->doc = trim($str);
|
|
|
|
$this->size = strlen($this->doc);
|
|
|
|
$this->original_size = $this->size; // original size of the html
|
|
|
|
$this->pos = 0;
|
|
|
|
$this->cursor = 1;
|
|
|
|
$this->noise = array();
|
|
|
|
$this->nodes = array();
|
|
|
|
$this->lowercase = $lowercase;
|
|
|
|
$this->default_br_text = $defaultBRText;
|
|
|
|
$this->default_span_text = $defaultSpanText;
|
|
|
|
$this->root = new simple_html_dom_node($this);
|
|
|
|
$this->root->tag = 'root';
|
|
|
|
$this->root->_[HDOM_INFO_BEGIN] = -1;
|
|
|
|
$this->root->nodetype = HDOM_TYPE_ROOT;
|
|
|
|
$this->parent = $this->root;
|
|
|
|
if ($this->size > 0) { $this->char = $this->doc[0]; }
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function parse()
|
|
|
|
{
|
|
|
|
while (true) {
|
|
|
|
// Read next tag if there is no text between current position and the
|
|
|
|
// next opening tag.
|
|
|
|
if (($s = $this->copy_until_char('<')) === '') {
|
|
|
|
if($this->read_tag()) {
|
|
|
|
continue;
|
|
|
|
} else {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Add a text node for text between tags
|
|
|
|
$node = new simple_html_dom_node($this);
|
|
|
|
++$this->cursor;
|
|
|
|
$node->_[HDOM_INFO_TEXT] = $s;
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function parse_charset()
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
|
|
|
|
$charset = null;
|
|
|
|
|
|
|
|
if (function_exists('get_last_retrieve_url_contents_content_type')) {
|
|
|
|
$contentTypeHeader = get_last_retrieve_url_contents_content_type();
|
|
|
|
$success = preg_match('/charset=(.+)/', $contentTypeHeader, $matches);
|
|
|
|
if ($success) {
|
|
|
|
$charset = $matches[1];
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2,
|
|
|
|
'header content-type found charset of: '
|
|
|
|
. $charset
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (empty($charset)) {
|
|
|
|
// https://www.w3.org/TR/html/document-metadata.html#statedef-http-equiv-content-type
|
|
|
|
$el = $this->root->find('meta[http-equiv=Content-Type]', 0, true);
|
|
|
|
|
|
|
|
if (!empty($el)) {
|
|
|
|
$fullvalue = $el->content;
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2,
|
|
|
|
'meta content-type tag found'
|
|
|
|
. $fullvalue
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!empty($fullvalue)) {
|
|
|
|
$success = preg_match(
|
|
|
|
'/charset=(.+)/i',
|
|
|
|
$fullvalue,
|
|
|
|
$matches
|
|
|
|
);
|
|
|
|
|
|
|
|
if ($success) {
|
|
|
|
$charset = $matches[1];
|
|
|
|
} else {
|
|
|
|
// If there is a meta tag, and they don't specify the
|
|
|
|
// character set, research says that it's typically
|
|
|
|
// ISO-8859-1
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2,
|
|
|
|
'meta content-type tag couldn\'t be parsed. using iso-8859 default.'
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
$charset = 'ISO-8859-1';
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (empty($charset)) {
|
|
|
|
// https://www.w3.org/TR/html/document-metadata.html#character-encoding-declaration
|
|
|
|
if ($meta = $this->root->find('meta[charset]', 0)) {
|
|
|
|
$charset = $meta->charset;
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'meta charset: ' . $charset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (empty($charset)) {
|
|
|
|
// Try to guess the charset based on the content
|
|
|
|
// Requires Multibyte String (mbstring) support (optional)
|
|
|
|
if (function_exists('mb_detect_encoding')) {
|
|
|
|
/**
|
|
|
|
* mb_detect_encoding() is not intended to distinguish between
|
|
|
|
* charsets, especially single-byte charsets. Its primary
|
|
|
|
* purpose is to detect which multibyte encoding is in use,
|
|
|
|
* i.e. UTF-8, UTF-16, shift-JIS, etc.
|
|
|
|
*
|
|
|
|
* -- https://bugs.php.net/bug.php?id=38138
|
|
|
|
*
|
|
|
|
* Adding both CP1251/ISO-8859-5 and CP1252/ISO-8859-1 will
|
|
|
|
* always result in CP1251/ISO-8859-5 and vice versa.
|
|
|
|
*
|
|
|
|
* Thus, only detect if it's either UTF-8 or CP1252/ISO-8859-1
|
|
|
|
* to stay compatible.
|
|
|
|
*/
|
|
|
|
$encoding = mb_detect_encoding(
|
|
|
|
$this->doc,
|
|
|
|
array( 'UTF-8', 'CP1252', 'ISO-8859-1' )
|
|
|
|
);
|
|
|
|
|
|
|
|
if ($encoding === 'CP1252' || $encoding === 'ISO-8859-1') {
|
|
|
|
// Due to a limitation of mb_detect_encoding
|
|
|
|
// 'CP1251'/'ISO-8859-5' will be detected as
|
|
|
|
// 'CP1252'/'ISO-8859-1'. This will cause iconv to fail, in
|
|
|
|
// which case we can simply assume it is the other charset.
|
|
|
|
if (!@iconv('CP1252', 'UTF-8', $this->doc)) {
|
|
|
|
$encoding = 'CP1251';
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($encoding !== false) {
|
|
|
|
$charset = $encoding;
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'mb_detect: ' . $charset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (empty($charset)) {
|
|
|
|
// Assume it's UTF-8 as it is the most likely charset to be used
|
|
|
|
$charset = 'UTF-8';
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'No match found, assume ' . $charset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Since CP1252 is a superset, if we get one of it's subsets, we want
|
|
|
|
// it instead.
|
|
|
|
if ((strtolower($charset) == 'iso-8859-1')
|
|
|
|
|| (strtolower($charset) == 'latin1')
|
|
|
|
|| (strtolower($charset) == 'latin-1')) {
|
|
|
|
$charset = 'CP1252';
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2,
|
|
|
|
'replacing ' . $charset . ' with CP1252 as its a superset'
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(1, 'EXIT - ' . $charset);
|
|
|
|
}
|
|
|
|
|
|
|
|
return $this->_charset = $charset;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function read_tag()
|
|
|
|
{
|
|
|
|
// Set end position if no further tags found
|
|
|
|
if ($this->char !== '<') {
|
|
|
|
$this->root->_[HDOM_INFO_END] = $this->cursor;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
$begin_tag_pos = $this->pos;
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
|
|
|
|
// end tag
|
|
|
|
if ($this->char === '/') {
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
|
|
|
|
// Skip whitespace in end tags (i.e. in "</ html>")
|
|
|
|
$this->skip($this->token_blank);
|
|
|
|
$tag = $this->copy_until_char('>');
|
|
|
|
|
|
|
|
// Skip attributes in end tags
|
|
|
|
if (($pos = strpos($tag, ' ')) !== false) {
|
|
|
|
$tag = substr($tag, 0, $pos);
|
|
|
|
}
|
|
|
|
|
|
|
|
$parent_lower = strtolower($this->parent->tag);
|
|
|
|
$tag_lower = strtolower($tag);
|
|
|
|
|
|
|
|
// The end tag is supposed to close the parent tag. Handle situations
|
|
|
|
// when it doesn't
|
|
|
|
if ($parent_lower !== $tag_lower) {
|
|
|
|
// Parent tag does not have to be closed necessarily (optional closing tag)
|
|
|
|
// Current tag is a block tag, so it may close an ancestor
|
|
|
|
if (isset($this->optional_closing_tags[$parent_lower])
|
|
|
|
&& isset($this->block_tags[$tag_lower])) {
|
|
|
|
|
|
|
|
$this->parent->_[HDOM_INFO_END] = 0;
|
|
|
|
$org_parent = $this->parent;
|
|
|
|
|
|
|
|
// Traverse ancestors to find a matching opening tag
|
|
|
|
// Stop at root node
|
|
|
|
while (($this->parent->parent)
|
|
|
|
&& strtolower($this->parent->tag) !== $tag_lower
|
|
|
|
){
|
|
|
|
$this->parent = $this->parent->parent;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If we don't have a match add current tag as text node
|
|
|
|
if (strtolower($this->parent->tag) !== $tag_lower) {
|
|
|
|
$this->parent = $org_parent; // restore origonal parent
|
|
|
|
|
|
|
|
if ($this->parent->parent) {
|
|
|
|
$this->parent = $this->parent->parent;
|
|
|
|
}
|
|
|
|
|
|
|
|
$this->parent->_[HDOM_INFO_END] = $this->cursor;
|
|
|
|
return $this->as_text_node($tag);
|
|
|
|
}
|
|
|
|
} elseif (($this->parent->parent)
|
|
|
|
&& isset($this->block_tags[$tag_lower])
|
|
|
|
) {
|
|
|
|
// Grandparent exists and current tag is a block tag, so our
|
|
|
|
// parent doesn't have an end tag
|
|
|
|
$this->parent->_[HDOM_INFO_END] = 0; // No end tag
|
|
|
|
$org_parent = $this->parent;
|
|
|
|
|
|
|
|
// Traverse ancestors to find a matching opening tag
|
|
|
|
// Stop at root node
|
|
|
|
while (($this->parent->parent)
|
|
|
|
&& strtolower($this->parent->tag) !== $tag_lower
|
|
|
|
) {
|
|
|
|
$this->parent = $this->parent->parent;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If we don't have a match add current tag as text node
|
|
|
|
if (strtolower($this->parent->tag) !== $tag_lower) {
|
|
|
|
$this->parent = $org_parent; // restore origonal parent
|
|
|
|
$this->parent->_[HDOM_INFO_END] = $this->cursor;
|
|
|
|
return $this->as_text_node($tag);
|
|
|
|
}
|
|
|
|
} elseif (($this->parent->parent)
|
|
|
|
&& strtolower($this->parent->parent->tag) === $tag_lower
|
|
|
|
) { // Grandparent exists and current tag closes it
|
|
|
|
$this->parent->_[HDOM_INFO_END] = 0;
|
|
|
|
$this->parent = $this->parent->parent;
|
|
|
|
} else { // Random tag, add as text node
|
|
|
|
return $this->as_text_node($tag);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Set end position of parent tag to current cursor position
|
|
|
|
$this->parent->_[HDOM_INFO_END] = $this->cursor;
|
|
|
|
|
|
|
|
if ($this->parent->parent) {
|
|
|
|
$this->parent = $this->parent->parent;
|
|
|
|
}
|
|
|
|
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// start tag
|
|
|
|
$node = new simple_html_dom_node($this);
|
|
|
|
$node->_[HDOM_INFO_BEGIN] = $this->cursor;
|
|
|
|
++$this->cursor;
|
|
|
|
$tag = $this->copy_until($this->token_slash); // Get tag name
|
|
|
|
$node->tag_start = $begin_tag_pos;
|
|
|
|
|
|
|
|
// doctype, cdata & comments...
|
|
|
|
// <!DOCTYPE html>
|
|
|
|
// <![CDATA[ ... ]]>
|
|
|
|
// <!-- Comment -->
|
|
|
|
if (isset($tag[0]) && $tag[0] === '!') {
|
|
|
|
$node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until_char('>');
|
|
|
|
|
|
|
|
if (isset($tag[2]) && $tag[1] === '-' && $tag[2] === '-') { // Comment ("<!--")
|
|
|
|
$node->nodetype = HDOM_TYPE_COMMENT;
|
|
|
|
$node->tag = 'comment';
|
|
|
|
} else { // Could be doctype or CDATA but we don't care
|
|
|
|
$node->nodetype = HDOM_TYPE_UNKNOWN;
|
|
|
|
$node->tag = 'unknown';
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($this->char === '>') { $node->_[HDOM_INFO_TEXT] .= '>'; }
|
|
|
|
|
|
|
|
$this->link_nodes($node, true);
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// The start tag cannot contain another start tag, if so add as text
|
|
|
|
// i.e. "<<html>"
|
|
|
|
if ($pos = strpos($tag, '<') !== false) {
|
|
|
|
$tag = '<' . substr($tag, 0, -1);
|
|
|
|
$node->_[HDOM_INFO_TEXT] = $tag;
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
$this->char = $this->doc[--$this->pos]; // prev
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Handle invalid tag names (i.e. "<html#doc>")
|
|
|
|
if (!preg_match('/^\w[\w:-]*$/', $tag)) {
|
|
|
|
$node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until('<>');
|
|
|
|
|
|
|
|
// Next char is the beginning of a new tag, don't touch it.
|
|
|
|
if ($this->char === '<') {
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Next char closes current tag, add and be done with it.
|
|
|
|
if ($this->char === '>') { $node->_[HDOM_INFO_TEXT] .= '>'; }
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// begin tag, add new node
|
|
|
|
$node->nodetype = HDOM_TYPE_ELEMENT;
|
|
|
|
$tag_lower = strtolower($tag);
|
|
|
|
$node->tag = ($this->lowercase) ? $tag_lower : $tag;
|
|
|
|
|
|
|
|
// handle optional closing tags
|
|
|
|
if (isset($this->optional_closing_tags[$tag_lower])) {
|
|
|
|
// Traverse ancestors to close all optional closing tags
|
|
|
|
while (isset($this->optional_closing_tags[$tag_lower][strtolower($this->parent->tag)])) {
|
|
|
|
$this->parent->_[HDOM_INFO_END] = 0;
|
|
|
|
$this->parent = $this->parent->parent;
|
|
|
|
}
|
|
|
|
$node->parent = $this->parent;
|
|
|
|
}
|
|
|
|
|
|
|
|
$guard = 0; // prevent infinity loop
|
|
|
|
|
|
|
|
// [0] Space between tag and first attribute
|
|
|
|
$space = array($this->copy_skip($this->token_blank), '', '');
|
|
|
|
|
|
|
|
// attributes
|
|
|
|
do {
|
|
|
|
// Everything until the first equal sign should be the attribute name
|
|
|
|
$name = $this->copy_until($this->token_equal);
|
|
|
|
|
|
|
|
if ($name === '' && $this->char !== null && $space[0] === '') {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($guard === $this->pos) { // Escape infinite loop
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
$guard = $this->pos;
|
|
|
|
|
|
|
|
// handle endless '<'
|
|
|
|
// Out of bounds before the tag ended
|
|
|
|
if ($this->pos >= $this->size - 1 && $this->char !== '>') {
|
|
|
|
$node->nodetype = HDOM_TYPE_TEXT;
|
|
|
|
$node->_[HDOM_INFO_END] = 0;
|
|
|
|
$node->_[HDOM_INFO_TEXT] = '<' . $tag . $space[0] . $name;
|
|
|
|
$node->tag = 'text';
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// handle mismatch '<'
|
|
|
|
// Attributes cannot start after opening tag
|
|
|
|
if ($this->doc[$this->pos - 1] == '<') {
|
|
|
|
$node->nodetype = HDOM_TYPE_TEXT;
|
|
|
|
$node->tag = 'text';
|
|
|
|
$node->attr = array();
|
|
|
|
$node->_[HDOM_INFO_END] = 0;
|
|
|
|
$node->_[HDOM_INFO_TEXT] = substr(
|
|
|
|
$this->doc,
|
|
|
|
$begin_tag_pos,
|
|
|
|
$this->pos - $begin_tag_pos - 1
|
|
|
|
);
|
|
|
|
$this->pos -= 2;
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($name !== '/' && $name !== '') { // this is a attribute name
|
|
|
|
// [1] Whitespace after attribute name
|
|
|
|
$space[1] = $this->copy_skip($this->token_blank);
|
|
|
|
|
|
|
|
$name = $this->restore_noise($name); // might be a noisy name
|
|
|
|
|
|
|
|
if ($this->lowercase) { $name = strtolower($name); }
|
|
|
|
|
|
|
|
if ($this->char === '=') { // attribute with value
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
$this->parse_attr($node, $name, $space); // get attribute value
|
|
|
|
} else {
|
|
|
|
//no value attr: nowrap, checked selected...
|
|
|
|
$node->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_NO;
|
|
|
|
$node->attr[$name] = true;
|
|
|
|
if ($this->char != '>') { $this->char = $this->doc[--$this->pos]; } // prev
|
|
|
|
}
|
|
|
|
|
|
|
|
$node->_[HDOM_INFO_SPACE][] = $space;
|
|
|
|
|
|
|
|
// prepare for next attribute
|
|
|
|
$space = array(
|
|
|
|
$this->copy_skip($this->token_blank),
|
|
|
|
'',
|
|
|
|
''
|
|
|
|
);
|
|
|
|
} else { // no more attributes
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} while ($this->char !== '>' && $this->char !== '/'); // go until the tag ended
|
|
|
|
|
|
|
|
$this->link_nodes($node, true);
|
|
|
|
$node->_[HDOM_INFO_ENDSPACE] = $space[0];
|
|
|
|
|
|
|
|
// handle empty tags (i.e. "<div/>")
|
|
|
|
if ($this->copy_until_char('>') === '/') {
|
|
|
|
$node->_[HDOM_INFO_ENDSPACE] .= '/';
|
|
|
|
$node->_[HDOM_INFO_END] = 0;
|
|
|
|
} else {
|
|
|
|
// reset parent
|
|
|
|
if (!isset($this->self_closing_tags[strtolower($node->tag)])) {
|
|
|
|
$this->parent = $node;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
|
|
|
|
// If it's a BR tag, we need to set it's text to the default text.
|
|
|
|
// This way when we see it in plaintext, we can generate formatting that the user wants.
|
|
|
|
// since a br tag never has sub nodes, this works well.
|
|
|
|
if ($node->tag === 'br') {
|
|
|
|
$node->_[HDOM_INFO_INNER] = $this->default_br_text;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function parse_attr($node, $name, &$space)
|
|
|
|
{
|
|
|
|
$is_duplicate = isset($node->attr[$name]);
|
|
|
|
|
|
|
|
if (!$is_duplicate) // Copy whitespace between "=" and value
|
|
|
|
$space[2] = $this->copy_skip($this->token_blank);
|
|
|
|
|
|
|
|
switch ($this->char) {
|
|
|
|
case '"':
|
|
|
|
$quote_type = HDOM_QUOTE_DOUBLE;
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
$value = $this->copy_until_char('"');
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
break;
|
|
|
|
case '\'':
|
|
|
|
$quote_type = HDOM_QUOTE_SINGLE;
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
$value = $this->copy_until_char('\'');
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
$quote_type = HDOM_QUOTE_NO;
|
|
|
|
$value = $this->copy_until($this->token_attr);
|
|
|
|
}
|
|
|
|
|
|
|
|
$value = $this->restore_noise($value);
|
|
|
|
|
|
|
|
// PaperG: Attributes should not have \r or \n in them, that counts as
|
|
|
|
// html whitespace.
|
|
|
|
$value = str_replace("\r", '', $value);
|
|
|
|
$value = str_replace("\n", '', $value);
|
|
|
|
|
|
|
|
// PaperG: If this is a "class" selector, lets get rid of the preceeding
|
|
|
|
// and trailing space since some people leave it in the multi class case.
|
|
|
|
if ($name === 'class') {
|
|
|
|
$value = trim($value);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!$is_duplicate) {
|
|
|
|
$node->_[HDOM_INFO_QUOTE][] = $quote_type;
|
|
|
|
$node->attr[$name] = $value;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function link_nodes(&$node, $is_child)
|
|
|
|
{
|
|
|
|
$node->parent = $this->parent;
|
|
|
|
$this->parent->nodes[] = $node;
|
|
|
|
if ($is_child) {
|
|
|
|
$this->parent->children[] = $node;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function as_text_node($tag)
|
|
|
|
{
|
|
|
|
$node = new simple_html_dom_node($this);
|
|
|
|
++$this->cursor;
|
|
|
|
$node->_[HDOM_INFO_TEXT] = '</' . $tag . '>';
|
|
|
|
$this->link_nodes($node, false);
|
|
|
|
$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function skip($chars)
|
|
|
|
{
|
|
|
|
$this->pos += strspn($this->doc, $chars, $this->pos);
|
|
|
|
$this->char = ($this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function copy_skip($chars)
|
|
|
|
{
|
|
|
|
$pos = $this->pos;
|
|
|
|
$len = strspn($this->doc, $chars, $pos);
|
|
|
|
$this->pos += $len;
|
|
|
|
$this->char = ($this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
if ($len === 0) { return ''; }
|
|
|
|
return substr($this->doc, $pos, $len);
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function copy_until($chars)
|
|
|
|
{
|
|
|
|
$pos = $this->pos;
|
|
|
|
$len = strcspn($this->doc, $chars, $pos);
|
|
|
|
$this->pos += $len;
|
|
|
|
$this->char = ($this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
|
|
|
|
return substr($this->doc, $pos, $len);
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function copy_until_char($char)
|
|
|
|
{
|
|
|
|
if ($this->char === null) { return ''; }
|
|
|
|
|
|
|
|
if (($pos = strpos($this->doc, $char, $this->pos)) === false) {
|
|
|
|
$ret = substr($this->doc, $this->pos, $this->size - $this->pos);
|
|
|
|
$this->char = null;
|
|
|
|
$this->pos = $this->size;
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($pos === $this->pos) { return ''; }
|
|
|
|
|
|
|
|
$pos_old = $this->pos;
|
|
|
|
$this->char = $this->doc[$pos];
|
|
|
|
$this->pos = $pos;
|
|
|
|
return substr($this->doc, $pos_old, $pos - $pos_old);
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function remove_noise($pattern, $remove_tag = false)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
$count = preg_match_all(
|
|
|
|
$pattern,
|
|
|
|
$this->doc,
|
|
|
|
$matches,
|
|
|
|
PREG_SET_ORDER | PREG_OFFSET_CAPTURE
|
|
|
|
);
|
|
|
|
|
|
|
|
for ($i = $count - 1; $i > -1; --$i) {
|
|
|
|
$key = '___noise___' . sprintf('% 5d', count($this->noise) + 1000);
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'key is: ' . $key);
|
|
|
|
}
|
|
|
|
|
|
|
|
$idx = ($remove_tag) ? 0 : 1; // 0 = entire match, 1 = submatch
|
|
|
|
$this->noise[$key] = $matches[$i][$idx][0];
|
|
|
|
$this->doc = substr_replace($this->doc, $key, $matches[$i][$idx][1], strlen($matches[$i][$idx][0]));
|
|
|
|
}
|
|
|
|
|
|
|
|
// reset the length of content
|
|
|
|
$this->size = strlen($this->doc);
|
|
|
|
|
|
|
|
if ($this->size > 0) {
|
|
|
|
$this->char = $this->doc[0];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function restore_noise($text)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
while (($pos = strpos($text, '___noise___')) !== false) {
|
|
|
|
// Sometimes there is a broken piece of markup, and we don't GET the
|
|
|
|
// pos+11 etc... token which indicates a problem outside of us...
|
|
|
|
|
|
|
|
// todo: "___noise___1000" (or any number with four or more digits)
|
|
|
|
// in the DOM causes an infinite loop which could be utilized by
|
|
|
|
// malicious software
|
|
|
|
if (strlen($text) > $pos + 15) {
|
|
|
|
$key = '___noise___'
|
|
|
|
. $text[$pos + 11]
|
|
|
|
. $text[$pos + 12]
|
|
|
|
. $text[$pos + 13]
|
|
|
|
. $text[$pos + 14]
|
|
|
|
. $text[$pos + 15];
|
|
|
|
|
|
|
|
if (is_object($debug_object)) {
|
|
|
|
$debug_object->debug_log(2, 'located key of: ' . $key);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($this->noise[$key])) {
|
|
|
|
$text = substr($text, 0, $pos)
|
|
|
|
. $this->noise[$key]
|
|
|
|
. substr($text, $pos + 16);
|
|
|
|
} else {
|
|
|
|
// do this to prevent an infinite loop.
|
|
|
|
$text = substr($text, 0, $pos)
|
|
|
|
. 'UNDEFINED NOISE FOR KEY: '
|
|
|
|
. $key
|
|
|
|
. substr($text, $pos + 16);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// There is no valid key being given back to us... We must get
|
|
|
|
// rid of the ___noise___ or we will have a problem.
|
|
|
|
$text = substr($text, 0, $pos)
|
|
|
|
. 'NO NUMERIC NOISE KEY'
|
|
|
|
. substr($text, $pos + 11);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return $text;
|
|
|
|
}
|
|
|
|
|
|
|
|
function search_noise($text)
|
|
|
|
{
|
|
|
|
global $debug_object;
|
|
|
|
if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
|
|
|
|
|
|
|
|
foreach($this->noise as $noiseElement) {
|
|
|
|
if (strpos($noiseElement, $text) !== false) {
|
|
|
|
return $noiseElement;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function __toString()
|
|
|
|
{
|
|
|
|
return $this->root->innertext();
|
|
|
|
}
|
|
|
|
|
|
|
|
function __get($name)
|
|
|
|
{
|
|
|
|
switch ($name) {
|
|
|
|
case 'outertext':
|
|
|
|
return $this->root->innertext();
|
|
|
|
case 'innertext':
|
|
|
|
return $this->root->innertext();
|
|
|
|
case 'plaintext':
|
|
|
|
return $this->root->text();
|
|
|
|
case 'charset':
|
|
|
|
return $this->_charset;
|
|
|
|
case 'target_charset':
|
|
|
|
return $this->_target_charset;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function childNodes($idx = -1)
|
|
|
|
{
|
|
|
|
return $this->root->childNodes($idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
function firstChild()
|
|
|
|
{
|
|
|
|
return $this->root->first_child();
|
|
|
|
}
|
|
|
|
|
|
|
|
function lastChild()
|
|
|
|
{
|
|
|
|
return $this->root->last_child();
|
|
|
|
}
|
|
|
|
|
|
|
|
function createElement($name, $value = null)
|
|
|
|
{
|
|
|
|
return @str_get_html("<$name>$value</$name>")->firstChild();
|
|
|
|
}
|
|
|
|
|
|
|
|
function createTextNode($value)
|
|
|
|
{
|
|
|
|
return @end(str_get_html($value)->nodes);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementById($id)
|
|
|
|
{
|
|
|
|
return $this->find("#$id", 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementsById($id, $idx = null)
|
|
|
|
{
|
|
|
|
return $this->find("#$id", $idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementByTagName($name)
|
|
|
|
{
|
|
|
|
return $this->find($name, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
function getElementsByTagName($name, $idx = -1)
|
|
|
|
{
|
|
|
|
return $this->find($name, $idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
function loadFile()
|
|
|
|
{
|
|
|
|
$args = func_get_args();
|
|
|
|
$this->load_file($args);
|
|
|
|
}
|
|
|
|
} |
...
|
...
|
|
