: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, 111 deletions

diff --git a/library/HTMLPurifier/PercentEncoder.php b/library/HTMLPurifier/PercentEncoder.php
deleted file mode 100644
index 18c8bbb00..000000000
--- a/library/HTMLPurifier/PercentEncoder.php
+++ /dev/null
@@ -1,111 +0,0 @@
-<?php
-
-/**
- * Class that handles operations involving percent-encoding in URIs.
- *
- * @warning
- *      Be careful when reusing instances of PercentEncoder. The object
- *      you use for normalize() SHOULD NOT be used for encode(), or
- *      vice-versa.
- */
-class HTMLPurifier_PercentEncoder
-{
-
-    /**
-     * Reserved characters to preserve when using encode().
-     * @type array
-     */
-    protected $preserve = array();
-
-    /**
-     * String of characters that should be preserved while using encode().
-     * @param bool $preserve
-     */
-    public function __construct($preserve = false)
-    {
-        // unreserved letters, ought to const-ify
-        for ($i = 48; $i <= 57; $i++) { // digits
-            $this->preserve[$i] = true;
-        }
-        for ($i = 65; $i <= 90; $i++) { // upper-case
-            $this->preserve[$i] = true;
-        }
-        for ($i = 97; $i <= 122; $i++) { // lower-case
-            $this->preserve[$i] = true;
-        }
-        $this->preserve[45] = true; // Dash         -
-        $this->preserve[46] = true; // Period       .
-        $this->preserve[95] = true; // Underscore   _
-        $this->preserve[126]= true; // Tilde        ~
-
-        // extra letters not to escape
-        if ($preserve !== false) {
-            for ($i = 0, $c = strlen($preserve); $i < $c; $i++) {
-                $this->preserve[ord($preserve[$i])] = true;
-            }
-        }
-    }
-
-    /**
-     * Our replacement for urlencode, it encodes all non-reserved characters,
-     * as well as any extra characters that were instructed to be preserved.
-     * @note
-     *      Assumes that the string has already been normalized, making any
-     *      and all percent escape sequences valid. Percents will not be
-     *      re-escaped, regardless of their status in $preserve
-     * @param string $string String to be encoded
-     * @return string Encoded string.
-     */
-    public function encode($string)
-    {
-        $ret = '';
-        for ($i = 0, $c = strlen($string); $i < $c; $i++) {
-            if ($string[$i] !== '%' && !isset($this->preserve[$int = ord($string[$i])])) {
-                $ret .= '%' . sprintf('%02X', $int);
-            } else {
-                $ret .= $string[$i];
-            }
-        }
-        return $ret;
-    }
-
-    /**
-     * Fix up percent-encoding by decoding unreserved characters and normalizing.
-     * @warning This function is affected by $preserve, even though the
-     *          usual desired behavior is for this not to preserve those
-     *          characters. Be careful when reusing instances of PercentEncoder!
-     * @param string $string String to normalize
-     * @return string
-     */
-    public function normalize($string)
-    {
-        if ($string == '') {
-            return '';
-        }
-        $parts = explode('%', $string);
-        $ret = array_shift($parts);
-        foreach ($parts as $part) {
-            $length = strlen($part);
-            if ($length < 2) {
-                $ret .= '%25' . $part;
-                continue;
-            }
-            $encoding = substr($part, 0, 2);
-            $text     = substr($part, 2);
-            if (!ctype_xdigit($encoding)) {
-                $ret .= '%25' . $part;
-                continue;
-            }
-            $int = hexdec($encoding);
-            if (isset($this->preserve[$int])) {
-                $ret .= chr($int) . $text;
-                continue;
-            }
-            $encoding = strtoupper($encoding);
-            $ret .= '%' . $encoding . $text;
-        }
-        return $ret;
-    }
-}
-
-// vim: et sw=4 sts=4