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authorKlaus Weidenbach <Klaus.Weidenbach@gmx.net>2017-03-18 17:50:05 +0100
committerKlaus Weidenbach <Klaus.Weidenbach@gmx.net>2017-03-26 00:41:27 +0100
commitf718e2b0db0fe3477212a8dd6c3ec067f4432862 (patch)
tree8dfbd3b3d4bdcd967b50f1ee4655440bcdef5bb8 /library/HTMLPurifier/ElementDef.php
parent2115eb26a7fd2ca937286bd4e98ab74c7d6e9525 (diff)
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: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 'library/HTMLPurifier/ElementDef.php')
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diff --git a/library/HTMLPurifier/ElementDef.php b/library/HTMLPurifier/ElementDef.php
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-<?php
-
-/**
- * Structure that stores an HTML element definition. Used by
- * HTMLPurifier_HTMLDefinition and HTMLPurifier_HTMLModule.
- * @note This class is inspected by HTMLPurifier_Printer_HTMLDefinition.
- * Please update that class too.
- * @warning If you add new properties to this class, you MUST update
- * the mergeIn() method.
- */
-class HTMLPurifier_ElementDef
-{
- /**
- * Does the definition work by itself, or is it created solely
- * for the purpose of merging into another definition?
- * @type bool
- */
- public $standalone = true;
-
- /**
- * Associative array of attribute name to HTMLPurifier_AttrDef.
- * @type array
- * @note Before being processed by HTMLPurifier_AttrCollections
- * when modules are finalized during
- * HTMLPurifier_HTMLDefinition->setup(), this array may also
- * contain an array at index 0 that indicates which attribute
- * collections to load into the full array. It may also
- * contain string indentifiers in lieu of HTMLPurifier_AttrDef,
- * see HTMLPurifier_AttrTypes on how they are expanded during
- * HTMLPurifier_HTMLDefinition->setup() processing.
- */
- public $attr = array();
-
- // XXX: Design note: currently, it's not possible to override
- // previously defined AttrTransforms without messing around with
- // the final generated config. This is by design; a previous version
- // used an associated list of attr_transform, but it was extremely
- // easy to accidentally override other attribute transforms by
- // forgetting to specify an index (and just using 0.) While we
- // could check this by checking the index number and complaining,
- // there is a second problem which is that it is not at all easy to
- // tell when something is getting overridden. Combine this with a
- // codebase where this isn't really being used, and it's perfect for
- // nuking.
-
- /**
- * List of tags HTMLPurifier_AttrTransform to be done before validation.
- * @type array
- */
- public $attr_transform_pre = array();
-
- /**
- * List of tags HTMLPurifier_AttrTransform to be done after validation.
- * @type array
- */
- public $attr_transform_post = array();
-
- /**
- * HTMLPurifier_ChildDef of this tag.
- * @type HTMLPurifier_ChildDef
- */
- public $child;
-
- /**
- * Abstract string representation of internal ChildDef rules.
- * @see HTMLPurifier_ContentSets for how this is parsed and then transformed
- * into an HTMLPurifier_ChildDef.
- * @warning This is a temporary variable that is not available after
- * being processed by HTMLDefinition
- * @type string
- */
- public $content_model;
-
- /**
- * Value of $child->type, used to determine which ChildDef to use,
- * used in combination with $content_model.
- * @warning This must be lowercase
- * @warning This is a temporary variable that is not available after
- * being processed by HTMLDefinition
- * @type string
- */
- public $content_model_type;
-
- /**
- * Does the element have a content model (#PCDATA | Inline)*? This
- * is important for chameleon ins and del processing in
- * HTMLPurifier_ChildDef_Chameleon. Dynamically set: modules don't
- * have to worry about this one.
- * @type bool
- */
- public $descendants_are_inline = false;
-
- /**
- * List of the names of required attributes this element has.
- * Dynamically populated by HTMLPurifier_HTMLDefinition::getElement()
- * @type array
- */
- public $required_attr = array();
-
- /**
- * Lookup table of tags excluded from all descendants of this tag.
- * @type array
- * @note SGML permits exclusions for all descendants, but this is
- * not possible with DTDs or XML Schemas. W3C has elected to
- * use complicated compositions of content_models to simulate
- * exclusion for children, but we go the simpler, SGML-style
- * route of flat-out exclusions, which correctly apply to
- * all descendants and not just children. Note that the XHTML
- * Modularization Abstract Modules are blithely unaware of such
- * distinctions.
- */
- public $excludes = array();
-
- /**
- * This tag is explicitly auto-closed by the following tags.
- * @type array
- */
- public $autoclose = array();
-
- /**
- * If a foreign element is found in this element, test if it is
- * allowed by this sub-element; if it is, instead of closing the
- * current element, place it inside this element.
- * @type string
- */
- public $wrap;
-
- /**
- * Whether or not this is a formatting element affected by the
- * "Active Formatting Elements" algorithm.
- * @type bool
- */
- public $formatting;
-
- /**
- * Low-level factory constructor for creating new standalone element defs
- */
- public static function create($content_model, $content_model_type, $attr)
- {
- $def = new HTMLPurifier_ElementDef();
- $def->content_model = $content_model;
- $def->content_model_type = $content_model_type;
- $def->attr = $attr;
- return $def;
- }
-
- /**
- * Merges the values of another element definition into this one.
- * Values from the new element def take precedence if a value is
- * not mergeable.
- * @param HTMLPurifier_ElementDef $def
- */
- public function mergeIn($def)
- {
- // later keys takes precedence
- foreach ($def->attr as $k => $v) {
- if ($k === 0) {
- // merge in the includes
- // sorry, no way to override an include
- foreach ($v as $v2) {
- $this->attr[0][] = $v2;
- }
- continue;
- }
- if ($v === false) {
- if (isset($this->attr[$k])) {
- unset($this->attr[$k]);
- }
- continue;
- }
- $this->attr[$k] = $v;
- }
- $this->_mergeAssocArray($this->excludes, $def->excludes);
- $this->attr_transform_pre = array_merge($this->attr_transform_pre, $def->attr_transform_pre);
- $this->attr_transform_post = array_merge($this->attr_transform_post, $def->attr_transform_post);
-
- if (!empty($def->content_model)) {
- $this->content_model =
- str_replace("#SUPER", $this->content_model, $def->content_model);
- $this->child = false;
- }
- if (!empty($def->content_model_type)) {
- $this->content_model_type = $def->content_model_type;
- $this->child = false;
- }
- if (!is_null($def->child)) {
- $this->child = $def->child;
- }
- if (!is_null($def->formatting)) {
- $this->formatting = $def->formatting;
- }
- if ($def->descendants_are_inline) {
- $this->descendants_are_inline = $def->descendants_are_inline;
- }
- }
-
- /**
- * Merges one array into another, removes values which equal false
- * @param $a1 Array by reference that is merged into
- * @param $a2 Array that merges into $a1
- */
- private function _mergeAssocArray(&$a1, $a2)
- {
- foreach ($a2 as $k => $v) {
- if ($v === false) {
- if (isset($a1[$k])) {
- unset($a1[$k]);
- }
- continue;
- }
- $a1[$k] = $v;
- }
- }
-}
-
-// vim: et sw=4 sts=4