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- <?php
- ////////// This is a PHP 7.3 compatible version of dom.php
- ////////// https://github.com/Kub-AT/php-simple-html-dom-parser
- define('HDOM_TYPE_ELEMENT', 1);
- define('HDOM_TYPE_COMMENT', 2);
- define('HDOM_TYPE_TEXT', 3);
- define('HDOM_TYPE_ENDTAG', 4);
- define('HDOM_TYPE_ROOT', 5);
- define('HDOM_TYPE_UNKNOWN', 6);
- define('HDOM_QUOTE_DOUBLE', 0);
- define('HDOM_QUOTE_SINGLE', 1);
- define('HDOM_QUOTE_NO', 3);
- define('HDOM_INFO_BEGIN', 0);
- define('HDOM_INFO_END', 1);
- define('HDOM_INFO_QUOTE', 2);
- define('HDOM_INFO_SPACE', 3);
- define('HDOM_INFO_TEXT', 4);
- define('HDOM_INFO_INNER', 5);
- define('HDOM_INFO_OUTER', 6);
- define('HDOM_INFO_ENDSPACE', 7);
- defined('DEFAULT_TARGET_CHARSET') || define('DEFAULT_TARGET_CHARSET', 'UTF-8');
- defined('DEFAULT_BR_TEXT') || define('DEFAULT_BR_TEXT', "\r\n");
- defined('DEFAULT_SPAN_TEXT') || define('DEFAULT_SPAN_TEXT', ' ');
- defined('MAX_FILE_SIZE') || define('MAX_FILE_SIZE', 600000);
- define('HDOM_SMARTY_AS_TEXT', 1);
- function file_get_html(
- $url,
- $use_include_path = false,
- $context = null,
- $offset = 0,
- $maxLen = -1,
- $lowercase = true,
- $forceTagsClosed = true,
- $target_charset = DEFAULT_TARGET_CHARSET,
- $stripRN = true,
- $defaultBRText = DEFAULT_BR_TEXT,
- $defaultSpanText = DEFAULT_SPAN_TEXT)
- {
- if($maxLen <= 0) { $maxLen = MAX_FILE_SIZE; }
- $dom = new simple_html_dom(
- null,
- $lowercase,
- $forceTagsClosed,
- $target_charset,
- $stripRN,
- $defaultBRText,
- $defaultSpanText
- );
- /**
- * For sourceforge users: uncomment the next line and comment the
- * retrieve_url_contents line 2 lines down if it is not already done.
- */
- $contents = file_get_contents(
- $url,
- $use_include_path,
- $context,
- $offset,
- $maxLen
- );
- // $contents = retrieve_url_contents($url);
- if (empty($contents) || strlen($contents) > $maxLen) {
- $dom->clear();
- return false;
- }
- return $dom->load($contents, $lowercase, $stripRN);
- }
- function str_get_html(
- $str,
- $lowercase = true,
- $forceTagsClosed = true,
- $target_charset = DEFAULT_TARGET_CHARSET,
- $stripRN = true,
- $defaultBRText = DEFAULT_BR_TEXT,
- $defaultSpanText = DEFAULT_SPAN_TEXT)
- {
- $dom = new simple_html_dom(
- null,
- $lowercase,
- $forceTagsClosed,
- $target_charset,
- $stripRN,
- $defaultBRText,
- $defaultSpanText
- );
- if (empty($str) || strlen($str) > MAX_FILE_SIZE) {
- $dom->clear();
- return false;
- }
- return $dom->load($str, $lowercase, $stripRN);
- }
- function dump_html_tree($node, $show_attr = true, $deep = 0)
- {
- $node->dump($node);
- }
- class simple_html_dom_node
- {
- public $nodetype = HDOM_TYPE_TEXT;
- public $tag = 'text';
- public $attr = array();
- public $children = array();
- public $nodes = array();
- public $parent = null;
- public $_ = array();
- public $tag_start = 0;
- private $dom = null;
- function __construct($dom)
- {
- $this->dom = $dom;
- $dom->nodes[] = $this;
- }
- function __destruct()
- {
- $this->clear();
- }
- function __toString()
- {
- return $this->outertext();
- }
- function clear()
- {
- $this->dom = null;
- $this->nodes = null;
- $this->parent = null;
- $this->children = null;
- }
- function dump($show_attr = true, $depth = 0)
- {
- echo str_repeat("\t", $depth) . $this->tag;
- if ($show_attr && count($this->attr) > 0) {
- echo '(';
- foreach ($this->attr as $k => $v) {
- echo "[$k]=>\"$v\", ";
- }
- echo ')';
- }
- echo "\n";
- if ($this->nodes) {
- foreach ($this->nodes as $node) {
- $node->dump($show_attr, $depth + 1);
- }
- }
- }
- function dump_node($echo = true)
- {
- $string = $this->tag;
- if (count($this->attr) > 0) {
- $string .= '(';
- foreach ($this->attr as $k => $v) {
- $string .= "[$k]=>\"$v\", ";
- }
- $string .= ')';
- }
- if (count($this->_) > 0) {
- $string .= ' $_ (';
- foreach ($this->_ as $k => $v) {
- if (is_array($v)) {
- $string .= "[$k]=>(";
- foreach ($v as $k2 => $v2) {
- $string .= "[$k2]=>\"$v2\", ";
- }
- $string .= ')';
- } else {
- $string .= "[$k]=>\"$v\", ";
- }
- }
- $string .= ')';
- }
- if (isset($this->text)) {
- $string .= " text: ({$this->text})";
- }
- $string .= ' HDOM_INNER_INFO: ';
- if (isset($node->_[HDOM_INFO_INNER])) {
- $string .= "'" . $node->_[HDOM_INFO_INNER] . "'";
- } else {
- $string .= ' NULL ';
- }
- $string .= ' children: ' . count($this->children);
- $string .= ' nodes: ' . count($this->nodes);
- $string .= ' tag_start: ' . $this->tag_start;
- $string .= "\n";
- if ($echo) {
- echo $string;
- return;
- } else {
- return $string;
- }
- }
- function parent($parent = null)
- {
- // I am SURE that this doesn't work properly.
- // It fails to unset the current node from it's current parents nodes or
- // children list first.
- if ($parent !== null) {
- $this->parent = $parent;
- $this->parent->nodes[] = $this;
- $this->parent->children[] = $this;
- }
- return $this->parent;
- }
- function has_child()
- {
- return !empty($this->children);
- }
- function children($idx = -1)
- {
- if ($idx === -1) {
- return $this->children;
- }
- if (isset($this->children[$idx])) {
- return $this->children[$idx];
- }
- return null;
- }
- function first_child()
- {
- if (count($this->children) > 0) {
- return $this->children[0];
- }
- return null;
- }
- function last_child()
- {
- if (count($this->children) > 0) {
- return end($this->children);
- }
- return null;
- }
- function next_sibling()
- {
- if ($this->parent === null) {
- return null;
- }
- $idx = array_search($this, $this->parent->children, true);
- if ($idx !== false && isset($this->parent->children[$idx + 1])) {
- return $this->parent->children[$idx + 1];
- }
- return null;
- }
- function prev_sibling()
- {
- if ($this->parent === null) {
- return null;
- }
- $idx = array_search($this, $this->parent->children, true);
- if ($idx !== false && $idx > 0) {
- return $this->parent->children[$idx - 1];
- }
- return null;
- }
- function find_ancestor_tag($tag)
- {
- global $debug_object;
- if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }
- if ($this->parent === null) {
- return null;
- }
- $ancestor = $this->parent;
- while (!is_null($ancestor)) {
- if (is_object($debug_object)) {
- $debug_object->debug_log(2, 'Current tag is: ' . $ancestor->tag);
- }
- if ($ancestor->tag === $tag) {
- break;
- }
- $ancestor = $ancestor->parent;
- }
- return $ancestor;
- }
- function innertext()
- {
- if (isset($this->_[HDOM_INFO_INNER])) {
- return $this->_[HDOM_INFO_INNER];
- }
- if (isset($this->_[HDOM_INFO_TEXT])) {
- return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
- }
- $ret = '';
- foreach ($this->nodes as $n) {
- $ret .= $n->outertext();
- }
- return $ret;
- }
- function outertext()
- {
- global $debug_object;
- if (is_object($debug_object)) {
- $text = '';
- if ($this->tag === 'text') {
- if (!empty($this->text)) {
- $text = ' with text: ' . $this->text;
- }
- }
- $debug_object->debug_log(1, 'Innertext of tag: ' . $this->tag . $text);
- }
- if ($this->tag === 'root') {
- return $this->innertext();
- }
- // todo: What is the use of this callback? Remove?
- if ($this->dom && $this->dom->callback !== null) {
- call_user_func_array($this->dom->callback, array($this));
- }
- if (isset($this->_[HDOM_INFO_OUTER])) {
- return $this->_[HDOM_INFO_OUTER];
- }
- if (isset($this->_[HDOM_INFO_TEXT])) {
- return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
- }
- $ret = '';
- if ($this->dom && $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]) {
- $ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
- }
- if (isset($this->_[HDOM_INFO_INNER])) {
- // todo: <br> should either never have HDOM_INFO_INNER or always
- if ($this->tag !== 'br') {
- $ret .= $this->_[HDOM_INFO_INNER];
- }
- } elseif ($this->nodes) {
- foreach ($this->nodes as $n) {
- $ret .= $this->convert_text($n->outertext());
- }
- }
- 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) {
- $pass = false;
- }
- // Skip if node isn't a child node (i.e. text nodes)
- if($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);
- }
- }
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