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author | Klaus Weidenbach <Klaus.Weidenbach@gmx.net> | 2017-03-18 17:50:05 +0100 |
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committer | Klaus Weidenbach <Klaus.Weidenbach@gmx.net> | 2017-03-26 00:41:27 +0100 |
commit | f718e2b0db0fe3477212a8dd6c3ec067f4432862 (patch) | |
tree | 8dfbd3b3d4bdcd967b50f1ee4655440bcdef5bb8 /vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Required.php | |
parent | 2115eb26a7fd2ca937286bd4e98ab74c7d6e9525 (diff) | |
download | volse-hubzilla-f718e2b0db0fe3477212a8dd6c3ec067f4432862.tar.gz volse-hubzilla-f718e2b0db0fe3477212a8dd6c3ec067f4432862.tar.bz2 volse-hubzilla-f718e2b0db0fe3477212a8dd6c3ec067f4432862.zip |
:arrow_up: Update HTML Purifier library.
Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.
Diffstat (limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Required.php')
-rw-r--r-- | vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Required.php | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Required.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Required.php new file mode 100644 index 000000000..0d1c8f5f3 --- /dev/null +++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Required.php @@ -0,0 +1,118 @@ +<?php + +/** + * Definition that allows a set of elements, but disallows empty children. + */ +class HTMLPurifier_ChildDef_Required extends HTMLPurifier_ChildDef +{ + /** + * Lookup table of allowed elements. + * @type array + */ + public $elements = array(); + + /** + * Whether or not the last passed node was all whitespace. + * @type bool + */ + protected $whitespace = false; + + /** + * @param array|string $elements List of allowed element names (lowercase). + */ + public function __construct($elements) + { + if (is_string($elements)) { + $elements = str_replace(' ', '', $elements); + $elements = explode('|', $elements); + } + $keys = array_keys($elements); + if ($keys == array_keys($keys)) { + $elements = array_flip($elements); + foreach ($elements as $i => $x) { + $elements[$i] = true; + if (empty($i)) { + unset($elements[$i]); + } // remove blank + } + } + $this->elements = $elements; + } + + /** + * @type bool + */ + public $allow_empty = false; + + /** + * @type string + */ + public $type = 'required'; + + /** + * @param array $children + * @param HTMLPurifier_Config $config + * @param HTMLPurifier_Context $context + * @return array + */ + public function validateChildren($children, $config, $context) + { + // Flag for subclasses + $this->whitespace = false; + + // if there are no tokens, delete parent node + if (empty($children)) { + return false; + } + + // the new set of children + $result = array(); + + // whether or not parsed character data is allowed + // this controls whether or not we silently drop a tag + // or generate escaped HTML from it + $pcdata_allowed = isset($this->elements['#PCDATA']); + + // a little sanity check to make sure it's not ALL whitespace + $all_whitespace = true; + + $stack = array_reverse($children); + while (!empty($stack)) { + $node = array_pop($stack); + if (!empty($node->is_whitespace)) { + $result[] = $node; + continue; + } + $all_whitespace = false; // phew, we're not talking about whitespace + + if (!isset($this->elements[$node->name])) { + // special case text + // XXX One of these ought to be redundant or something + if ($pcdata_allowed && $node instanceof HTMLPurifier_Node_Text) { + $result[] = $node; + continue; + } + // spill the child contents in + // ToDo: Make configurable + if ($node instanceof HTMLPurifier_Node_Element) { + for ($i = count($node->children) - 1; $i >= 0; $i--) { + $stack[] = $node->children[$i]; + } + continue; + } + continue; + } + $result[] = $node; + } + if (empty($result)) { + return false; + } + if ($all_whitespace) { + $this->whitespace = true; + return false; + } + return $result; + } +} + +// vim: et sw=4 sts=4 |