Add the admin plugin and consorts.

user/plugins/admin/.editorconfig

+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+# 2 space indentation
+[*.yaml, *.yml]
+indent_style = space
+indent_size = 2

user/plugins/admin/.gitattributes

+# Linguist Normalizer
+*.yaml linguistic-language=PHP
+*.twig linguistic-language=PHP
+**/gulpfile.js linguist-vendored
+**/webpack.conf.js linguist-vendored
+**/js/*.js linguist-vendored
+**/js/*.json linguist-vendored
+**/css-compiled/*.css linguist-vendored

user/plugins/admin/.gitignore

+themes/grav/.sass-cache
+.DS_Store
+
+# Node Modules
+**/node_modules/**
+themes/grav/js/admin.js
+themes/grav/js/vendor.js
+themes/grav/js/*.map
+.idea
+
+tests/_output/*
+tests/_support/_generated/*
+tests/cache/*
+tests/error.log

user/plugins/admin/CONTRIBUTING.md

+Please read the <a href="https://github.com/getgrav/grav/blob/develop/CONTRIBUTING.md" target="_blank">Contributing Guidelines of the Grav Project</a>
\ No newline at end of file

user/plugins/admin/LICENSE

+The MIT License (MIT)
+
+Copyright (c) 2017 Grav
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

user/plugins/admin/README.md

+# Grav Standard Administration Panel Plugin
+
+This **admin plugin** for [Grav](http://github.com/getgrav/grav) is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages.  This will remain a totally optional plugin, and is not in any way required or needed to use Grav effectively.  In fact, the admin provides an intentionally limited view to ensure it remains easy to use and not overwhelming.  I'm sure power users will still prefer to work with the configuration files directly.
+
+![](assets/admin-dashboard.png)
+
+# Features
+
+* User login with automatic password encryption
+* Forgot password functionality
+* Logged-in-user management
+* One click Grav core updates
+* Dashboard with maintenance status, site activity and latest page updates
+* Notifications system for latest news, blogs, and announcements
+* Ajax-powered backup capability
+* Ajax-powered clear-cache capability
+* System configuration management
+* Site configuration management
+* Normal and Expert modes which allow editing via forms or YAML
+* Page listing with filtering and search
+* Page creation, editing, moving, copying, and deleting
+* Powerful syntax highlighting code editor with instant Grav-powered preview
+* Editor features, hot keys, toolbar, and distraction-free fullscreen mode
+* Drag-n-drop upload of page media files including drag-n-drop placement in the editor
+* One click theme and plugin updates
+* Plugin manager that allows listing and configuration of installed plugins
+* Theme manager that allows listing and configuration of installed themes
+* GPM-powered installation of new plugins and themes
+
+# Support
+
+#### Support
+
+We have tested internally, but we hope to use this public beta phase to identify, isolate, and fix issues related to the plugin to ensure it is as solid and reliable as possible.
+
+For **live chatting**, please use the dedicated [Slack Chat Room](https://getgrav.org/slack) for discussions directly related to Grav.
+
+For **bugs, features, improvements**, please ensure you [create issues in the admin plugin GitHub repository](https://github.com/getgrav/grav-plugin-admin).
+
+# Installation
+
+First ensure you are running the latest **Grav 0.9.34 or later**.  This is required for the admin plugin to run properly (`-f` forces a refresh of the GPM index).
+
+```
+$ bin/gpm selfupgrade -f
+```
+
+The admin plugin actually requires the help of 3 other plugins, so to get the admin plugin to work you first need to install **admin**, **login**, **forms**, and **email** plugins.  These are available via GPM, and because the plugin has dependencies you just need to proceed and install the admin plugin, and agree when prompted to install the others:
+
+```
+$ bin/gpm install admin
+```
+
+### Manual Installation
+
+Manual installation is not the recommended method of installation, however, it is still possible to install the admin plugin manually. Basically, you need to download each of the following plugins individually:
+
+* [admin](https://github.com/getgrav/grav-plugin-admin/archive/develop.zip)
+* [login](https://github.com/getgrav/grav-plugin-login/archive/develop.zip)
+* [form](https://github.com/getgrav/grav-plugin-form/archive/develop.zip)
+* [email](https://github.com/getgrav/grav-plugin-email/archive/develop.zip)
+
+Extract each archive file into your `user/plugins` folder, then ensure the folders are renamed to just `admin/`, `login/`, `form/`, and `email/`.  Then proceed with the **Usage instructions below**.
+
+# Usage
+
+### Create User with CLI
+
+After this you need to create a user account with admin privileges:
+
+```
+$ bin/plugin login new-user
+```
+
+### Create User Manually
+
+Alternatively, you can create a user account manually, in a file called `user/accounts/admin.yaml`. This **filename** is actually the **username** that you will use to login. The contents will contain the other information for the user.
+
+```
+password: 'password'
+email: 'youremail@mail.com'
+fullname: 'Johnny Appleseed'
+title: 'Site Administrator'
+access:
+  admin:
+    login: true
+    super: true
+```
+
+Of course you should edit your `email`, `password`, `fullname`, and `title` to suit your needs.
+
+> You can use any password when you manually put it in this `.yaml` file.  However, when you change your password in the admin, it must contain at least one number and one uppercase and lowercase letter, and at least 8 or more characters.
+
+# Accessing the Admin
+
+By default, you can access the admin by pointing your browser to `http://yoursite.com/admin`. You can simply log in with the `username` and `password` set in the YAML file you configured earlier.
+
+> After logging in, your **plaintext password** will be removed and replaced by an **encrypted** one.
+
+# Standard Free & Paid Pro Versions
+
+If you have been following the [blog](http://getgrav.org/blog), [Twitter](https://twitter.com/getgrav), [Slack chat](https://getgrav.org/slack), etc., you probably already know now that our intention is to provide two versions of this plugin.
+
+The **standard free version**, is very powerful, and has more functionality than most commercial flat-file CMS systems.
+
+We also intend to release in the near future a more feature-rich **pro version** that will include enhanced functionality, as well as some additional nice-to-have capabilities. This pro version will be a **paid** plugin the price of which is not yet 100% finalized.
+
+# Running Tests
+
+First install the dev dependencies by running `composer update` from the Grav root.
+Then `composer test` will run the Unit Tests, which should be always executed successfully on any site.

user/plugins/admin/admin.yaml

+enabled: true
+route: '/admin'
+cache_enabled: false
+theme: grav
+logo_text: ''
+body_classes: ''
+content_padding: true
+twofa_enabled: true
+sidebar:
+  activate: tab
+  hover_delay: 100
+  size: auto
+dashboard:
+  days_of_stats: 7
+widgets:
+  dashboard-maintenance: true
+  dashboard-statistics: true
+  dashboard-notifications: true
+  dashboard-feed: true
+  dashboard-pages: true
+pages:
+  show_parents: both
+  show_modular: true
+session:
+  timeout: 1800
+warnings:
+  delete_page: true
+edit_mode: normal
+frontend_preview_target: inline
+show_github_msg: true
+pages_list_display_field: title
+google_fonts: false
+admin_icons: line-awesome
+enable_auto_updates_check: true
+notifications:
+  feed: true
+  dashboard: true
+  plugins: true
+  themes: true
+popularity:
+  enabled: true
+  ignore: ['/test*','/modular']
+  history:
+    daily: 30
+    monthly: 12
+    visitors: 20

user/plugins/admin/blueprints/admin/pages/modular_new.yaml

+rules:
+  slug:
+    pattern: '[a-zA-Zа-яA-Я0-9_\-]+'
+    min: 1
+    max: 200
+
+form:
+  validation: loose
+  fields:
+
+    section:
+        type: section
+        title: PLUGIN_ADMIN.ADD_MODULAR_CONTENT
+
+    title:
+      type: text
+      label: PLUGIN_ADMIN.PAGE_TITLE
+      validate:
+        required: true
+
+    folder:
+      type: text
+      label: PLUGIN_ADMIN.FOLDER_NAME
+      validate:
+        rule: slug
+        required: true
+
+    route:
+      type: parents
+      label: PLUGIN_ADMIN.PAGE
+      classes: fancy
+      validate:
+        required: true
+
+    name:
+      type: select
+      classes: fancy
+      label: PLUGIN_ADMIN.MODULAR_TEMPLATE
+      help: PLUGIN_ADMIN.PAGE_FILE_HELP
+      default: default
+      data-options@: '\Grav\Plugin\AdminPlugin::pagesModularTypes'
+      validate:
+        required: true
+
+    modular:
+      type: hidden
+      default: 1
+      validate:
+        type: bool
+
+    blueprint:
+      type: blueprint

user/plugins/admin/blueprints/admin/pages/modular_raw.yaml

+rules:
+  slug:
+    pattern: '[a-zA-Zа-яA-Я0-9_\-]+'
+    min: 1
+    max: 200
+
+form:
+  validation: loose
+  fields:
+
+    tabs:
+      type: tabs
+      active: 1
+
+      fields:
+        content:
+          type: tab
+          title: PLUGIN_ADMIN.CONTENT
+
+          fields:
+            frontmatter:
+              classes: frontmatter
+              type: editor
+              label: PLUGIN_ADMIN.FRONTMATTER
+              autofocus: true
+              codemirror:
+                mode: 'yaml'
+                indentUnit: 4
+                autofocus: true
+                indentWithTabs: false
+                lineNumbers: true
+                styleActiveLine: true
+                gutters: ['CodeMirror-lint-markers']
+                lint: true
+
+            content:
+              type: markdown
+
+            header.media_order:
+              type: pagemedia
+              label: PLUGIN_ADMIN.PAGE_MEDIA
+              
+        options:
+          type: tab
+          title: PLUGIN_ADMIN.OPTIONS
+
+          fields:
+
+            columns:
+              type: columns
+
+              fields:
+                column1:
+                  type: column
+
+                  fields:
+
+                    ordering:
+                      type: toggle
+                      label: PLUGIN_ADMIN.FOLDER_NUMERIC_PREFIX
+                      help: PLUGIN_ADMIN.FOLDER_NUMERIC_PREFIX_HELP
+                      highlight: 1
+                      options:
+                        1: PLUGIN_ADMIN.ENABLED
+                        0: PLUGIN_ADMIN.DISABLED
+                      validate:
+                        type: bool
+
+                    folder:
+                      type: text
+                      label: PLUGIN_ADMIN.FILENAME
+                      validate:
+                        rule: slug
+                        required: true
+
+                    route:
+                      type: parents
+                      label: PLUGIN_ADMIN.PARENT
+                      classes: fancy
+                      validate:
+                        required: true
+
+                    name:
+                      type: select
+                      classes: fancy
+                      label: PLUGIN_ADMIN.MODULAR_TEMPLATE
+                      default: default
+                      data-options@: '\Grav\Plugin\AdminPlugin::pagesModularTypes'
+                      validate:
+                        required: true
+
+                column2:
+                    type: column
+
+                    fields:
+                      order:
+                        type: order
+                        label: PLUGIN_ADMIN.ORDERING
+
+            blueprint:
+              type: blueprint

user/plugins/admin/blueprints/admin/pages/move.yaml

+form:
+  validation: loose
+  fields:
+    route:
+      type: parents
+      label: PLUGIN_ADMIN.PARENT
+      classes: fancy

user/plugins/admin/blueprints/admin/pages/new.yaml

+rules:
+  slug:
+    pattern: '[a-zA-Zа-яA-Я0-9_\-]+'
+    min: 1
+    max: 200
+
+form:
+  validation: loose
+  fields:
+
+    section:
+        type: section
+        title: PLUGIN_ADMIN.ADD_PAGE
+
+    title:
+      type: text
+      label: PLUGIN_ADMIN.PAGE_TITLE
+      help: PLUGIN_ADMIN.PAGE_TITLE_HELP
+      validate:
+        required: true
+
+    folder:
+      type: text
+      label: PLUGIN_ADMIN.FOLDER_NAME
+      help: PLUGIN_ADMIN.FOLDER_NAME_HELP
+      validate:
+        rule: slug
+        required: true
+
+    route:
+      type: parents
+      label: PLUGIN_ADMIN.PARENT_PAGE
+      classes: fancy
+      validate:
+        required: true
+
+    name:
+      type: select
+      classes: fancy
+      label: PLUGIN_ADMIN.PAGE_FILE
+      help: PLUGIN_ADMIN.PAGE_FILE_HELP
+      data-options@: '\Grav\Plugin\AdminPlugin::pagesTypes'
+      data-default@: '\Grav\Plugin\Admin\Admin::getLastPageName'
+      validate:
+        required: true
+
+    visible:
+      type: toggle
+      label: PLUGIN_ADMIN.VISIBLE
+      help: PLUGIN_ADMIN.VISIBLE_HELP
+      highlight: ''
+      default: ''
+      options:
+        '': Auto
+        1: PLUGIN_ADMIN.YES
+        0: PLUGIN_ADMIN.NO
+      validate:
+        type: bool
+        required: true
+
+    blueprint:
+      type: blueprint

user/plugins/admin/blueprints/admin/pages/new_folder.yaml

+rules:
+  slug:
+    pattern: '[a-zA-Zа-яA-Я0-9_\-]+'
+    min: 1
+    max: 200
+
+form:
+  validation: loose
+  fields:
+
+    section:
+        type: section
+        title: PLUGIN_ADMIN.ADD_FOLDER
+
+    folder:
+      type: text
+      label: PLUGIN_ADMIN.FOLDER_NAME
+      help: PLUGIN_ADMIN.FOLDER_NAME_HELP
+      validate:
+        rule: slug
+        required: true
+
+    route:
+      type: parents
+      label: PLUGIN_ADMIN.PARENT_PAGE
+      classes: fancy
+      validate:
+        required: true
+
+    blueprint:
+      type: blueprint

user/plugins/admin/blueprints/admin/pages/raw.yaml

+rules:
+  slug:
+    pattern: '[a-zA-Zа-яA-Я0-9_\-]+'
+    min: 1
+    max: 200
+
+form:
+  validation: loose
+  fields:
+
+    tabs:
+      type: tabs
+      active: 1
+
+      fields:
+        content:
+          type: tab
+          title: PLUGIN_ADMIN.CONTENT
+
+          fields:
+            xss_check:
+              type: xss
+              
+            frontmatter:
+              classes: frontmatter
+              type: editor
+              label: PLUGIN_ADMIN.FRONTMATTER
+              autofocus: true
+              codemirror:
+                mode: 'yaml'
+                indentUnit: 4
+                autofocus: true
+                indentWithTabs: false
+                lineNumbers: true
+                styleActiveLine: true
+                gutters: ['CodeMirror-lint-markers']
+                lint: true
+
+            content:
+              type: markdown
+
+            header.media_order:
+              type: pagemedia
+              label: PLUGIN_ADMIN.PAGE_MEDIA
+
+        options:
+          type: tab
+          title: PLUGIN_ADMIN.OPTIONS
+
+          fields:
+
+            columns:
+              type: columns
+
+              fields:
+                column1:
+                  type: column
+
+                  fields:
+
+                    ordering:
+                      type: toggle
+                      label: PLUGIN_ADMIN.FOLDER_NUMERIC_PREFIX
+                      help: PLUGIN_ADMIN.FOLDER_NUMERIC_PREFIX_HELP
+                      highlight: 1
+                      options:
+                        1: PLUGIN_ADMIN.ENABLED
+                        0: PLUGIN_ADMIN.DISABLED
+                      validate:
+                        type: bool
+
+                    folder:
+                      type: text
+                      label: PLUGIN_ADMIN.FOLDER_NAME
+                      help: PLUGIN_ADMIN.FOLDER_NAME_HELP
+                      validate:
+                        rule: slug
+                        required: true
+
+                    route:
+                      type: parents
+                      label: PLUGIN_ADMIN.PARENT
+                      classes: fancy
+                      validate:
+                        required: true
+
+                    name:
+                      type: select
+                      classes: fancy
+                      label: PLUGIN_ADMIN.DISPLAY_TEMPLATE
+                      help: PLUGIN_ADMIN.DISPLAY_TEMPLATE_HELP
+                      default: default
+                      data-options@: '\Grav\Plugin\AdminPlugin::pagesTypes'
+                      validate:
+                        required: true
+
+                column2:
+                    type: column
+
+                    fields:
+                      order:
+                        type: order
+                        label: PLUGIN_ADMIN.ORDERING
+
+            blueprint:
+              type: blueprint

user/plugins/admin/blueprints/config/media.yaml

+title: PLUGIN_ADMIN.MEDIA
+form:
+  validation: loose
+  fields:
+    'types':
+      name: medias
+      type: list
+      label: PLUGIN_ADMIN.MEDIA_TYPES
+      style: vertical
+      key: extension
+      controls: both
+      collapsed: true
+
+      fields:
+        .extension:
+          type: key
+          label: PLUGIN_ADMIN.FILE_EXTENSION
+        .type:
+          type: text
+          label: PLUGIN_ADMIN.TYPE
+        .thumb:
+          type: text
+          label: PLUGIN_ADMIN.THUMB
+        .mime:
+          type: text
+          label: PLUGIN_ADMIN.MIME_TYPE
+          validate:
+            type: lower
+        .image:
+          type: textarea
+          yaml: true
+          label: PLUGIN_ADMIN.IMAGE_OPTIONS
+          validate:
+            type: yaml
+
+

user/plugins/admin/classes/Twig/AdminTwigExtension.php

+<?php
+namespace Grav\Plugin\Admin\Twig;
+
+use Grav\Common\Grav;
+use Grav\Common\Yaml;
+use Grav\Common\Language\Language;
+use Grav\Common\Page\Page;
+
+class AdminTwigExtension extends \Twig_Extension
+{
+    /**
+     * @var Grav
+     */
+    protected $grav;
+
+    /**
+     * @var Language $lang
+     */
+    protected $lang;
+
+    public function __construct()
+    {
+        $this->grav = Grav::instance();
+        $this->lang = $this->grav['user']->language;
+    }
+
+    public function getFilters()
+    {
+        return [
+            new \Twig_SimpleFilter('tu', [$this, 'tuFilter']),
+            new \Twig_SimpleFilter('toYaml', [$this, 'toYamlFilter']),
+            new \Twig_SimpleFilter('fromYaml', [$this, 'fromYamlFilter']),
+            new \Twig_SimpleFilter('adminNicetime', [$this, 'adminNicetimeFilter']),
+            new \Twig_SimpleFilter('nested', [$this, 'nestedFilter']),
+        ];
+    }
+
+    public function getFunctions()
+    {
+        return [
+            new \Twig_SimpleFunction('getPageUrl', [$this, 'getPageUrl'], ['needs_context' => true]),
+            new \Twig_SimpleFunction('clone', [$this, 'cloneFunc']),
+        ];
+    }
+
+    public function nestedFilter($current, $name)
+    {
+        $path = explode('.', trim($name, '.'));
+
+        foreach ($path as $field) {
+            if (is_object($current) && isset($current->{$field})) {
+                $current = $current->{$field};
+            } elseif (is_array($current) && isset($current[$field])) {
+                $current = $current[$field];
+            } else {
+                return null;
+            }
+        }
+
+        return $current;
+    }
+
+    public function cloneFunc($obj)
+    {
+        return clone $obj;
+    }
+
+    public function getPageUrl($context, Page $page)
+    {
+        $page_route = trim($page->rawRoute(), '/');
+        $page_lang = $page->language();
+        $base_url = $context['base_url'];
+        $base_url_simple = $context['base_url_simple'];
+        $admin_lang = Grav::instance()['session']->admin_lang ?: 'en';
+
+        if ($page_lang && $page_lang !== $admin_lang) {
+            $page_url = $base_url_simple . '/' . $page_lang . '/' . $context['admin_route'] . '/pages/' . $page_route;
+        } else {
+            $page_url = $base_url . '/pages/' . $page_route;
+        }
+
+        return $page_url;
+    }
+
+    public function tuFilter()
+    {
+        $args = func_get_args();
+        $numargs = count($args);
+        $lang = null;
+
+        if (($numargs === 3 && is_array($args[1])) || ($numargs === 2 && !is_array($args[1]))) {
+            $lang = array_pop($args);
+        } elseif ($numargs === 2 && is_array($args[1])) {
+            $subs = array_pop($args);
+            $args = array_merge($args, $subs);
+        }
+
+        return $this->grav['admin']->translate($args, $lang);
+    }
+
+    public function toYamlFilter($value, $inline = null)
+    {
+        return Yaml::dump($value, $inline);
+
+    }
+
+    public function fromYamlFilter($value)
+    {
+        return Yaml::parse($value);
+    }
+
+    public function adminNicetimeFilter($date, $long_strings = true)
+    {
+        if (empty($date)) {
+            return $this->grav['admin']->translate('NICETIME.NO_DATE_PROVIDED', null, true);
+        }
+
+        if ($long_strings) {
+            $periods = [
+                'NICETIME.SECOND',
+                'NICETIME.MINUTE',
+                'NICETIME.HOUR',
+                'NICETIME.DAY',
+                'NICETIME.WEEK',
+                'NICETIME.MONTH',
+                'NICETIME.YEAR',
+                'NICETIME.DECADE'
+            ];
+        } else {
+            $periods = [
+                'NICETIME.SEC',
+                'NICETIME.MIN',
+                'NICETIME.HR',
+                'NICETIME.DAY',
+                'NICETIME.WK',
+                'NICETIME.MO',
+                'NICETIME.YR',
+                'NICETIME.DEC'
+            ];
+        }
+
+        $lengths = ['60', '60', '24', '7', '4.35', '12', '10'];
+
+        $now = time();
+
+        // check if unix timestamp
+        if ((string)(int)$date === (string)$date) {
+            $unix_date = $date;
+        } else {
+            $unix_date = strtotime($date);
+        }
+
+        // check validity of date
+        if (empty($unix_date)) {
+            return $this->grav['admin']->translate('NICETIME.BAD_DATE', null, true);
+        }
+
+        // is it future date or past date
+        if ($now > $unix_date) {
+            $difference = $now - $unix_date;
+            $tense      = $this->grav['admin']->translate('NICETIME.AGO', null, true);
+
+        } else {
+            $difference = $unix_date - $now;
+            $tense      = $this->grav['admin']->translate('NICETIME.FROM_NOW', null, true);
+        }
+
+        $len = count($lengths) - 1;
+        for ($j = 0; $difference >= $lengths[$j] && $j < $len; $j++) {
+            $difference /= $lengths[$j];
+        }
+
+        $difference = round($difference);
+
+        if ($difference !== 1) {
+            $periods[$j] .= '_PLURAL';
+        }
+
+        if ($this->grav['language']->getTranslation($this->grav['user']->language,
+            $periods[$j] . '_MORE_THAN_TWO')
+        ) {
+            if ($difference > 2) {
+                $periods[$j] .= '_MORE_THAN_TWO';
+            }
+        }
+
+        $periods[$j] = $this->grav['admin']->translate($periods[$j], null, true);
+
+        return "{$difference} {$periods[$j]} {$tense}";
+    }
+
+}

user/plugins/admin/classes/themes.php

+<?php
+namespace Grav\Plugin\Admin;
+
+/**
+ * Admin theme object
+ *
+ * @author  RocketTheme
+ * @license MIT
+ */
+class Themes extends \Grav\Common\Themes
+{
+    public function init()
+    {
+        /** @var Themes $themes */
+        $themes = $this->grav['themes'];
+        $themes->configure();
+        $themes->initTheme();
+
+        $this->grav->fireEvent('onAdminThemeInitialized');
+    }
+}

user/plugins/admin/classes/utils.php

+<?php
+namespace Grav\Plugin\Admin;
+
+use Grav\Common\Grav;
+use Grav\Common\User\User;
+
+/**
+ * Admin utils class
+ *
+ * @license MIT
+ */
+class Utils
+{
+    /**
+     * Matches an email to a user
+     *
+     * @param $email
+     *
+     * @return User
+     */
+    public static function findUserByEmail($email)
+    {
+        $account_dir = Grav::instance()['locator']->findResource('account://');
+        $files       = array_diff(scandir($account_dir, SCANDIR_SORT_ASCENDING), ['.', '..']);
+
+        foreach ($files as $file) {
+            if (strpos($file, '.yaml') !== false) {
+                $user = User::load(trim(substr($file, 0, -5)));
+                if ($user['email'] === $email) {
+                    return $user;
+                }
+            }
+        }
+
+        // If a User with the provided email cannot be found, then load user with that email as the username
+        return User::load($email);
+    }
+
+    /**
+     * Generates a slug of the given string
+     *
+     * @param string $str
+     * @return string
+     */
+    public static function slug($str)
+    {
+        if (function_exists('transliterator_transliterate')) {
+            $str = transliterator_transliterate('Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC; [:Punctuation:] Remove;', $str);
+        } else {
+            $str = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $str);
+        }
+
+        $str = strtolower($str);
+        $str = preg_replace('/[-\s]+/', '-', $str);
+        $str = preg_replace('/[^a-z0-9-]/i', '', $str);
+        $str = trim($str, '-');
+
+        return $str;
+    }
+}

user/plugins/admin/codeception.yml

+actor: Tester
+paths:
+    tests: tests
+    log: tests/_output
+    data: tests/_data
+    support: tests/_support
+    envs: tests/_envs
+settings:
+    bootstrap: _bootstrap.php
+    colors: true
+    memory_limit: 1024M
+extensions:
+    enabled:
+        - Codeception\Extension\RunFailed
+        # - Codeception\Extension\Recorder
+
+modules:
+    config:

user/plugins/admin/languages/tlh.yaml

+---
+PLUGIN_ADMIN:
+  LOGIN_BTN_FORGOT: "lIj"
+  BACK: "chap"
+  NORMAL: "motlh"
+  'YES': "HIja'"
+  'NO': "Qo'"
+  DISABLED: "Qotlh"