: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.

1 files changed, 0 insertions, 216 deletions

diff --git a/library/HTMLPurifier/ElementDef.php b/library/HTMLPurifier/ElementDef.php
deleted file mode 100644
index d5311cedc..000000000
--- a/library/HTMLPurifier/ElementDef.php
+++ /dev/null
@@ -1,216 +0,0 @@
-<?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