indent the HTML sent from the editor

composer.json

@@ -14,7 +14,8 @@
     "ezyang/htmlpurifier": "4.*",
     "p3k/multipart": "*",
     "tantek/cassis": "*",
-    "p3k/timezone": "*"
+    "p3k/timezone": "*",
+    "gajus/dindent": "^2.0"
   },
   "autoload": {
     "files": [

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "1eb78fb0a7afe487cc3c9dd58d35532e",
+    "content-hash": "05f646a93f2c1204dddd80c4670dcf15",
     "packages": [
         {
             "name": "abraham/twitteroauth",
@@ -231,6 +231,51 @@
             "homepage": "https://github.com/firebase/php-jwt",
             "time": "2015-06-22T23:26:39+00:00"
         },
+        {
+            "name": "gajus/dindent",
+            "version": "2.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/gajus/dindent.git",
+                "reference": "d81c3a6f78fbe1ab26f5e753098bbbef6b6a9f3c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/gajus/dindent/zipball/d81c3a6f78fbe1ab26f5e753098bbbef6b6a9f3c",
+                "reference": "d81c3a6f78fbe1ab26f5e753098bbbef6b6a9f3c",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3"
+            },
+            "require-dev": {
+                "satooshi/php-coveralls": "dev-master"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Gajus\\Dindent\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Gajus Kuizinas",
+                    "email": "gk@anuary.com"
+                }
+            ],
+            "description": "HTML indentation library for development and testing.",
+            "homepage": "https://github.com/gajus/dindent",
+            "keywords": [
+                "format",
+                "html",
+                "indent"
+            ],
+            "time": "2014-10-08T10:03:04+00:00"
+        },
         {
             "name": "indieauth/client",
             "version": "0.1.13",

lib/helpers.php

@@ -382,12 +382,15 @@ function correct_photo_rotation($filename) {
 }
 
 function sanitize_editor_html($html) {
+  #error_log($html."\n");
+
   $config = HTMLPurifier_Config::createDefault();
   $config->set('Cache.DefinitionImpl', null);
   $config->set('HTML.AllowedElements', [
     'a',
     'abbr',
     'b',
+    'br',
     'code',
     'del',
     'em',
@@ -425,5 +428,18 @@ function sanitize_editor_html($html) {
   $sanitized = str_replace('<p><br /></p>','',$sanitized);
   $sanitized = str_replace('<p></p>','',$sanitized);
 
+  $indenter = new \Gajus\Dindent\Indenter([
+    'indentation_character' => '  '
+  ]);
+  $indenter->setElementType('h1', \Gajus\Dindent\Indenter::ELEMENT_TYPE_INLINE);
+  $indenter->setElementType('h2', \Gajus\Dindent\Indenter::ELEMENT_TYPE_INLINE);
+  $indenter->setElementType('h3', \Gajus\Dindent\Indenter::ELEMENT_TYPE_INLINE);
+  $indenter->setElementType('h4', \Gajus\Dindent\Indenter::ELEMENT_TYPE_INLINE);
+  $indenter->setElementType('h5', \Gajus\Dindent\Indenter::ELEMENT_TYPE_INLINE);
+  $indenter->setElementType('h6', \Gajus\Dindent\Indenter::ELEMENT_TYPE_INLINE);
+  $sanitized = $indenter->indent($sanitized);
+
+  #error_log($sanitized."\n");
+
   return $sanitized;
 }