: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, 170 deletions

diff --git a/library/HTMLPurifier/ContentSets.php b/library/HTMLPurifier/ContentSets.php
deleted file mode 100644
index 543e3f8f1..000000000
--- a/library/HTMLPurifier/ContentSets.php
+++ /dev/null
@@ -1,170 +0,0 @@
-<?php
-
-/**
- * @todo Unit test
- */
-class HTMLPurifier_ContentSets
-{
-
-    /**
-     * List of content set strings (pipe separators) indexed by name.
-     * @type array
-     */
-    public $info = array();
-
-    /**
-     * List of content set lookups (element => true) indexed by name.
-     * @type array
-     * @note This is in HTMLPurifier_HTMLDefinition->info_content_sets
-     */
-    public $lookup = array();
-
-    /**
-     * Synchronized list of defined content sets (keys of info).
-     * @type array
-     */
-    protected $keys = array();
-    /**
-     * Synchronized list of defined content values (values of info).
-     * @type array
-     */
-    protected $values = array();
-
-    /**
-     * Merges in module's content sets, expands identifiers in the content
-     * sets and populates the keys, values and lookup member variables.
-     * @param HTMLPurifier_HTMLModule[] $modules List of HTMLPurifier_HTMLModule
-     */
-    public function __construct($modules)
-    {
-        if (!is_array($modules)) {
-            $modules = array($modules);
-        }
-        // populate content_sets based on module hints
-        // sorry, no way of overloading
-        foreach ($modules as $module) {
-            foreach ($module->content_sets as $key => $value) {
-                $temp = $this->convertToLookup($value);
-                if (isset($this->lookup[$key])) {
-                    // add it into the existing content set
-                    $this->lookup[$key] = array_merge($this->lookup[$key], $temp);
-                } else {
-                    $this->lookup[$key] = $temp;
-                }
-            }
-        }
-        $old_lookup = false;
-        while ($old_lookup !== $this->lookup) {
-            $old_lookup = $this->lookup;
-            foreach ($this->lookup as $i => $set) {
-                $add = array();
-                foreach ($set as $element => $x) {
-                    if (isset($this->lookup[$element])) {
-                        $add += $this->lookup[$element];
-                        unset($this->lookup[$i][$element]);
-                    }
-                }
-                $this->lookup[$i] += $add;
-            }
-        }
-
-        foreach ($this->lookup as $key => $lookup) {
-            $this->info[$key] = implode(' | ', array_keys($lookup));
-        }
-        $this->keys   = array_keys($this->info);
-        $this->values = array_values($this->info);
-    }
-
-    /**
-     * Accepts a definition; generates and assigns a ChildDef for it
-     * @param HTMLPurifier_ElementDef $def HTMLPurifier_ElementDef reference
-     * @param HTMLPurifier_HTMLModule $module Module that defined the ElementDef
-     */
-    public function generateChildDef(&$def, $module)
-    {
-        if (!empty($def->child)) { // already done!
-            return;
-        }
-        $content_model = $def->content_model;
-        if (is_string($content_model)) {
-            // Assume that $this->keys is alphanumeric
-            $def->content_model = preg_replace_callback(
-                '/\b(' . implode('|', $this->keys) . ')\b/',
-                array($this, 'generateChildDefCallback'),
-                $content_model
-            );
-            //$def->content_model = str_replace(
-            //    $this->keys, $this->values, $content_model);
-        }
-        $def->child = $this->getChildDef($def, $module);
-    }
-
-    public function generateChildDefCallback($matches)
-    {
-        return $this->info[$matches[0]];
-    }
-
-    /**
-     * Instantiates a ChildDef based on content_model and content_model_type
-     * member variables in HTMLPurifier_ElementDef
-     * @note This will also defer to modules for custom HTMLPurifier_ChildDef
-     *       subclasses that need content set expansion
-     * @param HTMLPurifier_ElementDef $def HTMLPurifier_ElementDef to have ChildDef extracted
-     * @param HTMLPurifier_HTMLModule $module Module that defined the ElementDef
-     * @return HTMLPurifier_ChildDef corresponding to ElementDef
-     */
-    public function getChildDef($def, $module)
-    {
-        $value = $def->content_model;
-        if (is_object($value)) {
-            trigger_error(
-                'Literal object child definitions should be stored in '.
-                'ElementDef->child not ElementDef->content_model',
-                E_USER_NOTICE
-            );
-            return $value;
-        }
-        switch ($def->content_model_type) {
-            case 'required':
-                return new HTMLPurifier_ChildDef_Required($value);
-            case 'optional':
-                return new HTMLPurifier_ChildDef_Optional($value);
-            case 'empty':
-                return new HTMLPurifier_ChildDef_Empty();
-            case 'custom':
-                return new HTMLPurifier_ChildDef_Custom($value);
-        }
-        // defer to its module
-        $return = false;
-        if ($module->defines_child_def) { // save a func call
-            $return = $module->getChildDef($def);
-        }
-        if ($return !== false) {
-            return $return;
-        }
-        // error-out
-        trigger_error(
-            'Could not determine which ChildDef class to instantiate',
-            E_USER_ERROR
-        );
-        return false;
-    }
-
-    /**
-     * Converts a string list of elements separated by pipes into
-     * a lookup array.
-     * @param string $string List of elements
-     * @return array Lookup array of elements
-     */
-    protected function convertToLookup($string)
-    {
-        $array = explode('|', str_replace(' ', '', $string));
-        $ret = array();
-        foreach ($array as $k) {
-            $ret[$k] = true;
-        }
-        return $ret;
-    }
-}
-
-// vim: et sw=4 sts=4