rudimentary backup [fixes #45]

admin.php

@@ -200,7 +200,6 @@ class AdminPlugin extends Plugin
         $format = $this->uri->extension();
         $ext = '.' . ($format ? $format : 'html') . TWIG_EXT;
 
-        $twig->template = $this->template . $ext;
         $twig->twig_vars['location'] = $this->template;
         $twig->twig_vars['base_url_relative_frontend'] = $twig->twig_vars['base_url_relative'];
         $twig->twig_vars['base_url_relative'] .=

classes/admin.php

@@ -12,6 +12,7 @@ use Grav\Common\Page\Page;
 use Grav\Common\Data;
 use Grav\Common\GPM\GPM;
 use RocketTheme\Toolbox\File\File;
+use RocketTheme\Toolbox\File\JsonFile;
 use RocketTheme\Toolbox\File\LogFile;
 use RocketTheme\Toolbox\ResourceLocator\UniformResourceLocator;
 use RocketTheme\Toolbox\Session\Message;
@@ -415,6 +416,32 @@ class Admin
         return $content;
     }
 
+    public function lastBackup()
+    {
+        $file = JsonFile::instance($this->grav['locator']->findResource("log://backup.log"));
+        $content = $file->content();
+        if (empty($content)) {
+            return [
+                'days' => '∞',
+                'chart_fill' => 100,
+                'chart_empty' => 0
+            ];
+        }
+
+        $backup = new \DateTime();
+        $backup->setTimestamp($content['time']);
+        $diff = $backup->diff(new \DateTime());
+
+        $days = $diff->days;
+        $chart_fill = $days > 30 ? 100 : round($days / 30 * 100);
+
+        return [
+            'days' => $days,
+            'chart_fill' => $chart_fill,
+            'chart_empty' => 100 - $chart_fill
+        ];
+    }
+
     /**
      * Returns the page creating it if it does not exist.
      *

classes/controller.php

@@ -11,6 +11,9 @@ use Grav\Common\Data;
 use Grav\Common\Page;
 use Grav\Common\Page\Collection;
 use Grav\Common\User\User;
+use Grav\Common\Utils;
+use Grav\Common\Backup\ZipBackup;
+use RocketTheme\Toolbox\File\JsonFile;
 
 class AdminController
 {
@@ -266,6 +269,38 @@ class AdminController
         return true;
     }
 
+    protected function taskBackup()
+    {
+        $download = $this->grav['uri']->param('download');
+
+        if ($download) {
+            Utils::download(base64_decode(urldecode($download)), true);
+        }
+
+        $log = JsonFile::instance($this->grav['locator']->findResource("log://backup.log", true, true));
+
+        $backup = ZipBackup::backup();
+        $download = urlencode(base64_encode($backup));
+        $url = rtrim($this->grav['uri']->rootUrl(true), '/') . '/' . trim($this->admin->base, '/') . '/task:backup/download:' . $download;
+
+        $log->content([
+            'time' => time(),
+            'location' => $backup
+        ]);
+        $log->save();
+
+        $this->admin->json_response = [
+            'status' => 'success',
+            'message' => 'Your backup is ready for download. <a href="'.$url.'" class="button">Download backup</a>',
+            'toastr' => [
+                'timeOut' => 0,
+                'closeButton' => true
+            ]
+        ];
+
+        return true;
+    }
+
     protected function taskFilterPages()
     {
         $data = $this->post;

pages/admin/backup.md

@@ -0,0 +1,8 @@
+---
+title: Backup
+template: ajax
+
+access:
+    admin.maintenance: true
+    admin.super: true
+---

themes/grav/js/admin-all.js

@@ -92,6 +92,63 @@ $(function () {
         });
     });
 
+    // Update plugins/themes
+    $('[data-ajax]').on('click', function(e) {
+
+        var button = $(this),
+            icon = button.find('> .fa'),
+            url = button.data('ajax');
+
+        var iconClasses = [],
+            helperClasses = [ 'fa-lg', 'fa-2x', 'fa-3x', 'fa-4x', 'fa-5x',
+                              'fa-fw', 'fa-ul', 'fa-li', 'fa-border',
+                              'fa-rotate-90', 'fa-rotate-180', 'fa-rotate-270',
+                              'fa-flip-horizontal', 'fa-flip-vertical' ];
+
+        // Disable button
+        button.attr('disabled','disabled');
+
+        // Swap fontawesome icon to loader
+        $.each(icon.attr('class').split(/\s+/), function (i, classname) {
+            if (classname.indexOf('fa-') === 0 && $.inArray(classname, helperClasses) === -1) {
+                iconClasses.push(classname);
+                icon.removeClass(classname);
+            }
+        });
+        icon.addClass('fa-refresh fa-spin');
+
+        GravAjax({
+            dataType: "json",
+            url: url,
+            success: function(result, status) {
+
+                var toastrBackup = {};
+                if (result.toastr) {
+                    for (var setting in result.toastr) { if (result.toastr.hasOwnProperty(setting)) {
+                            toastrBackup[setting] = toastr.options[setting];
+                            toastr.options[setting] = result.toastr[setting];
+                        }
+                    }
+                }
+
+                if (result.status == 'success') {
+                    toastr.success(result.message || 'Task completed.');
+                } else {
+                    toastr.error(result.message || 'Something went terribly wrong.');
+                }
+
+                for (var setting in toastrBackup) { if (toastrBackup.hasOwnProperty(setting)) {
+                        toastr.options[setting] = toastrBackup[setting];
+                    }
+                }
+            }
+        }).complete(function() {
+            // Restore button
+            button.removeAttr('disabled');
+            icon.removeClass('fa-refresh fa-spin').addClass(iconClasses.join(' '));
+        });
+    });
+
     var GPMRefresh = function () {
         GravAjax({
             dataType: "JSON",

themes/grav/templates/ajax.json.twig

@@ -0,0 +1,5 @@
+{% if admin.json_response %}
+{{ admin.json_response|json_encode }}
+{% else %}
+{}
+{% endif %}

themes/grav/templates/dashboard.html.twig

@@ -11,6 +11,7 @@
 
     {% set gpm = admin.gpm() %}
     {% set updatable = gpm.getUpdatablePlugins() %}
+    {% set backup = admin.lastBackup() %}
 
     <div id="admin-dashboard">
         <div id="updates" class="dashboard-item dashboard-left">
@@ -29,7 +30,7 @@
                             <div class="ct-chart"></div>
                             <script>
                                 var data = {
-                                  series: [33,67]
+                                  series: [{{ backup.chart_fill }}, {{ backup.chart_empty }}]
                                 };
                                 var options = {
                                   donut: true,
@@ -41,14 +42,14 @@
                                 };
                                 Chartist.Pie('.backups-chart .ct-chart', data, options);
                             </script>
-                            <span class="numeric">13<em>days</em></span>
+                            <span class="numeric">{{ backup.days }}<em>days</em></span>
                         </div>
                         <p>Last Backup</p>
                     </div>
                 </div>
                 <div class="flush-bottom button-bar">
                     <button data-maintenance-update="{{ base_url_relative }}/update.json/task:update" class="button"><i class="fa fa-cloud-download"></i> Update</button>
-                    <button href="#" class="button"><i class="fa fa-database"></i> Backup</button>
+                    <button data-ajax="{{ base_url_relative }}/backup.json/task:backup" class="button"><i class="fa fa-database"></i> Backup</button>
                 </div>
             </div>
         </div>