: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, 143 deletions

diff --git a/library/HTMLPurifier/AttrCollections.php b/library/HTMLPurifier/AttrCollections.php
deleted file mode 100644
index 4f6c2e39a..000000000
--- a/library/HTMLPurifier/AttrCollections.php
+++ /dev/null
@@ -1,143 +0,0 @@
-<?php
-
-/**
- * Defines common attribute collections that modules reference
- */
-
-class HTMLPurifier_AttrCollections
-{
-
-    /**
-     * Associative array of attribute collections, indexed by name.
-     * @type array
-     */
-    public $info = array();
-
-    /**
-     * Performs all expansions on internal data for use by other inclusions
-     * It also collects all attribute collection extensions from
-     * modules
-     * @param HTMLPurifier_AttrTypes $attr_types HTMLPurifier_AttrTypes instance
-     * @param HTMLPurifier_HTMLModule[] $modules Hash array of HTMLPurifier_HTMLModule members
-     */
-    public function __construct($attr_types, $modules)
-    {
-        // load extensions from the modules
-        foreach ($modules as $module) {
-            foreach ($module->attr_collections as $coll_i => $coll) {
-                if (!isset($this->info[$coll_i])) {
-                    $this->info[$coll_i] = array();
-                }
-                foreach ($coll as $attr_i => $attr) {
-                    if ($attr_i === 0 && isset($this->info[$coll_i][$attr_i])) {
-                        // merge in includes
-                        $this->info[$coll_i][$attr_i] = array_merge(
-                            $this->info[$coll_i][$attr_i],
-                            $attr
-                        );
-                        continue;
-                    }
-                    $this->info[$coll_i][$attr_i] = $attr;
-                }
-            }
-        }
-        // perform internal expansions and inclusions
-        foreach ($this->info as $name => $attr) {
-            // merge attribute collections that include others
-            $this->performInclusions($this->info[$name]);
-            // replace string identifiers with actual attribute objects
-            $this->expandIdentifiers($this->info[$name], $attr_types);
-        }
-    }
-
-    /**
-     * Takes a reference to an attribute associative array and performs
-     * all inclusions specified by the zero index.
-     * @param array &$attr Reference to attribute array
-     */
-    public function performInclusions(&$attr)
-    {
-        if (!isset($attr[0])) {
-            return;
-        }
-        $merge = $attr[0];
-        $seen  = array(); // recursion guard
-        // loop through all the inclusions
-        for ($i = 0; isset($merge[$i]); $i++) {
-            if (isset($seen[$merge[$i]])) {
-                continue;
-            }
-            $seen[$merge[$i]] = true;
-            // foreach attribute of the inclusion, copy it over
-            if (!isset($this->info[$merge[$i]])) {
-                continue;
-            }
-            foreach ($this->info[$merge[$i]] as $key => $value) {
-                if (isset($attr[$key])) {
-                    continue;
-                } // also catches more inclusions
-                $attr[$key] = $value;
-            }
-            if (isset($this->info[$merge[$i]][0])) {
-                // recursion
-                $merge = array_merge($merge, $this->info[$merge[$i]][0]);
-            }
-        }
-        unset($attr[0]);
-    }
-
-    /**
-     * Expands all string identifiers in an attribute array by replacing
-     * them with the appropriate values inside HTMLPurifier_AttrTypes
-     * @param array &$attr Reference to attribute array
-     * @param HTMLPurifier_AttrTypes $attr_types HTMLPurifier_AttrTypes instance
-     */
-    public function expandIdentifiers(&$attr, $attr_types)
-    {
-        // because foreach will process new elements we add, make sure we
-        // skip duplicates
-        $processed = array();
-
-        foreach ($attr as $def_i => $def) {
-            // skip inclusions
-            if ($def_i === 0) {
-                continue;
-            }
-
-            if (isset($processed[$def_i])) {
-                continue;
-            }
-
-            // determine whether or not attribute is required
-            if ($required = (strpos($def_i, '*') !== false)) {
-                // rename the definition
-                unset($attr[$def_i]);
-                $def_i = trim($def_i, '*');
-                $attr[$def_i] = $def;
-            }
-
-            $processed[$def_i] = true;
-
-            // if we've already got a literal object, move on
-            if (is_object($def)) {
-                // preserve previous required
-                $attr[$def_i]->required = ($required || $attr[$def_i]->required);
-                continue;
-            }
-
-            if ($def === false) {
-                unset($attr[$def_i]);
-                continue;
-            }
-
-            if ($t = $attr_types->get($def)) {
-                $attr[$def_i] = $t;
-                $attr[$def_i]->required = $required;
-            } else {
-                unset($attr[$def_i]);
-            }
-        }
-    }
-}
-
-// vim: et sw=4 sts=4