From b7e22af48e6fed5f0a5b62b0223157d7dd19b659 Mon Sep 17 00:00:00 2001
From: Daniel Supernault <danielsupernault@gmail.com>
Date: Sat, 3 Nov 2018 22:01:30 -0600
Subject: [PATCH] Add html purifier config

---
 config/purify.php | 141 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 config/purify.php

diff --git a/config/purify.php b/config/purify.php
new file mode 100644
index 000000000..b55cad9a4
--- /dev/null
+++ b/config/purify.php
@@ -0,0 +1,141 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Settings
+    |--------------------------------------------------------------------------
+    |
+    | The configuration settings array is passed directly to HTMLPurifier.
+    |
+    | Feel free to add / remove / customize these attributes as you wish.
+    |
+    | Documentation: http://htmlpurifier.org/live/configdoc/plain.html
+    |
+    */
+
+    'settings' => [
+
+        /*
+        |--------------------------------------------------------------------------
+        | Core.Encoding
+        |--------------------------------------------------------------------------
+        |
+        | The encoding to convert input to.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#Core.Encoding
+        |
+        */
+
+        'Core.Encoding' => 'utf-8',
+
+        /*
+        |--------------------------------------------------------------------------
+        | Core.SerializerPath
+        |--------------------------------------------------------------------------
+        |
+        | The HTML purifier serializer cache path.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#Cache.SerializerPath
+        |
+        */
+
+        'Cache.SerializerPath' => storage_path('purify'),
+
+        /*
+        |--------------------------------------------------------------------------
+        | HTML.Doctype
+        |--------------------------------------------------------------------------
+        |
+        | Doctype to use during filtering.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#HTML.Doctype
+        |
+        */
+
+        'HTML.Doctype' => 'XHTML 1.0 Strict',
+
+        /*
+        |--------------------------------------------------------------------------
+        | HTML.Allowed
+        |--------------------------------------------------------------------------
+        |
+        | The allowed HTML Elements with their allowed attributes.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#HTML.Allowed
+        |
+        */
+
+        'HTML.Allowed' => 'a[href|title|rel],p',
+
+        /*
+        |--------------------------------------------------------------------------
+        | HTML.ForbiddenElements
+        |--------------------------------------------------------------------------
+        |
+        | The forbidden HTML elements. Elements that are listed in
+        | this string will be removed, however their content will remain.
+        |
+        | For example if 'p' is inside the string, the string: '<p>Test</p>',
+        |
+        | Will be cleaned to: 'Test'
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#HTML.ForbiddenElements
+        |
+        */
+
+        'HTML.ForbiddenElements' => '',
+
+        /*
+        |--------------------------------------------------------------------------
+        | CSS.AllowedProperties
+        |--------------------------------------------------------------------------
+        |
+        | The Allowed CSS properties.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#CSS.AllowedProperties
+        |
+        */
+
+        'CSS.AllowedProperties' => '',
+
+        /*
+        |--------------------------------------------------------------------------
+        | AutoFormat.AutoParagraph
+        |--------------------------------------------------------------------------
+        |
+        | The Allowed CSS properties.
+        |
+        | This directive turns on auto-paragraphing, where double
+        | newlines are converted in to paragraphs whenever possible.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#AutoFormat.AutoParagraph
+        |
+        */
+
+        'AutoFormat.AutoParagraph' => false,
+
+        /*
+        |--------------------------------------------------------------------------
+        | AutoFormat.RemoveEmpty
+        |--------------------------------------------------------------------------
+        |
+        | When enabled, HTML Purifier will attempt to remove empty
+        | elements that contribute no semantic information to the document.
+        |
+        | http://htmlpurifier.org/live/configdoc/plain.html#AutoFormat.RemoveEmpty
+        |
+        */
+
+        'AutoFormat.RemoveEmpty' => false,
+
+        'Attr.AllowedRel' => [
+            'noreferrer',
+            'noopener',
+            'nofollow'
+        ],
+
+    ],
+
+];