Add Mailgun API as mail driver

Add Mailgun API as a mail driver.  Can be configured from the System
Settings page.

.env.example

@@ -20,6 +20,9 @@ MAIL_FROM_ADDRESS
 MAIL_FROM_NAME
 MAIL_PASSWORD
 
+MAILGUN_DOMAIN=
+MAILGUN_SECRET=
+
 #POSTMARK_API_TOKEN=
 
 PHANTOMJS_CLOUD_KEY='a-demo-key-with-low-quota-per-ip-address'

app/Http/Controllers/AppController.php

@@ -100,6 +100,8 @@ class AppController extends BaseController
         $_ENV['MAIL_FROM_NAME'] = $mail['from']['name'];
         $_ENV['MAIL_PASSWORD'] = $mail['password'];
         $_ENV['PHANTOMJS_CLOUD_KEY'] = 'a-demo-key-with-low-quota-per-ip-address';
+        $_ENV['MAILGUN_DOMAIN'] = $mail['mailgun_domain'];
+        $_ENV['MAILGUN_SECRET'] = $mail['mailgun_secret'];
 
         $config = '';
         foreach ($_ENV as $key => $val) {
@@ -174,6 +176,8 @@ class AppController extends BaseController
             $_ENV['MAIL_FROM_NAME'] = $mail['from']['name'];
             $_ENV['MAIL_PASSWORD'] = $mail['password'];
             $_ENV['MAIL_FROM_ADDRESS'] = $mail['username'];
+            $_ENV['MAILGUN_DOMAIN'] = $mail['mailgun_domain'];
+            $_ENV['MAILGUN_SECRET'] = $mail['mailgun_secret'];
         }
 
         $config = '';

config/mail.php

@@ -80,7 +80,7 @@ return [
 	|
 	*/
 
-	'username' => env('MAIL_USERNAME'),
+	'username' => env('MAIL_USERNAME', ''),
 
 	/*
 	|--------------------------------------------------------------------------
@@ -93,7 +93,7 @@ return [
 	|
 	*/
 
-	'password' => env('MAIL_PASSWORD'),
+	'password' => env('MAIL_PASSWORD', ''),
 
 	/*
 	|--------------------------------------------------------------------------

config/services.php

@@ -17,8 +17,8 @@ return [
     'postmark' => env('POSTMARK_API_TOKEN', ''),
 
 	'mailgun' => [
-		'domain' => '',
+		'domain' => env('MAILGUN_DOMAIN',''),
-		'secret' => '',
+		'secret' => env('MAILGUN_SECRET',''),
 	],
 
 	'mandrill' => [

resources/views/partials/system_settings.blade.php

@@ -34,20 +34,28 @@
             <h3 class="panel-title">Email Settings</h3>
           </div>
           <div class="panel-body form-padding-right">
-            {!! Former::select('mail[driver]')->label('Driver')->options(['smtp' => 'SMTP', 'mail' => 'Mail', 'sendmail' => 'Sendmail'])
+            {!! Former::select('mail[driver]')->label('Driver')->options(['smtp' => 'SMTP', 'mail' => 'Mail', 'sendmail' => 'Sendmail', 'mailgun' => 'Mailgun'])
-                     ->value(isset($_ENV['MAIL_DRIVER']) ? $_ENV['MAIL_DRIVER'] : 'smtp') !!}
+                     ->value(isset($_ENV['MAIL_DRIVER']) ? $_ENV['MAIL_DRIVER'] : 'smtp')->setAttributes(['onchange' => 'mailDriverChange()']) !!}
-            {!! Former::text('mail[host]')->label('Host')
-                    ->value(isset($_ENV['MAIL_HOST']) ? $_ENV['MAIL_HOST'] : '') !!}
-            {!! Former::text('mail[port]')->label('Port')
-                    ->value(isset($_ENV['MAIL_PORT']) ? $_ENV['MAIL_PORT'] : '587')  !!}
-            {!! Former::select('mail[encryption]')->label('Encryption')->options(['tls' => 'TLS', 'ssl' => 'SSL'])
-                    ->value(isset($_ENV['MAIL_ENCRYPTION']) ? $_ENV['MAIL_ENCRYPTION'] : 'tls')  !!}
             {!! Former::text('mail[from][name]')->label('From Name')
-                    ->value(isset($_ENV['MAIL_FROM_NAME']) ? $_ENV['MAIL_FROM_NAME'] : '')  !!}
+                  ->value(isset($_ENV['MAIL_FROM_NAME']) ? $_ENV['MAIL_FROM_NAME'] : '')  !!}
             {!! Former::text('mail[username]')->label('Email')
                     ->value(isset($_ENV['MAIL_USERNAME']) ? $_ENV['MAIL_USERNAME'] : '')  !!}
-            {!! Former::password('mail[password]')->label('Password')
+            <div id="standardMailSetup">
-                    ->value(isset($_ENV['MAIL_PASSWORD']) ? $_ENV['MAIL_PASSWORD'] : '')  !!}    
+              {!! Former::text('mail[host]')->label('Host')
+                      ->value(isset($_ENV['MAIL_HOST']) ? $_ENV['MAIL_HOST'] : '') !!}
+              {!! Former::text('mail[port]')->label('Port')
+                      ->value(isset($_ENV['MAIL_PORT']) ? $_ENV['MAIL_PORT'] : '587')  !!}
+              {!! Former::select('mail[encryption]')->label('Encryption')->options(['tls' => 'TLS', 'ssl' => 'SSL'])
+                      ->value(isset($_ENV['MAIL_ENCRYPTION']) ? $_ENV['MAIL_ENCRYPTION'] : 'tls')  !!}
+              {!! Former::password('mail[password]')->label('Password')
+                      ->value(isset($_ENV['MAIL_PASSWORD']) ? $_ENV['MAIL_PASSWORD'] : '')  !!}
+            </div>
+            <div id="mailgunMailSetup">
+              {!! Former::text('mail[mailgun_domain]')->label('Mailgun Domain')
+                      ->value(isset($_ENV['MAILGUN_DOMAIN']) ? $_ENV['MAILGUN_DOMAIN'] : '') !!}
+              {!! Former::text('mail[mailgun_secret]')->label('Mailgun Private Key')
+                      ->value(isset($_ENV['MAILGUN_SECRET']) ? $_ENV['MAILGUN_SECRET'] : '')  !!}
+            </div>
             {{-- Former::actions( Button::primary('Send test email')->small()->withAttributes(['onclick' => 'testMail()']), '&nbsp;&nbsp;<span id="mailTestResult"/>' ) --}}
           </div>
         </div>
@@ -57,7 +65,8 @@
 
     var db_valid = false
     var mail_valid = false
-      
+    mailDriverChange();
+
     function testDatabase()
     {
       var data = $("form").serialize() + "&test=db";
@@ -78,6 +87,23 @@
       return db_valid;
     }  
 
+    function mailDriverChange() {
+      if ($("select[name='mail[driver]'").val() == 'mailgun') {
+        $("#standardMailSetup").hide();
+        $("#standardMailSetup").children('select,input').prop('disabled',true);
+        $("#mailgunMailSetup").show();
+        $("#mailgunMailSetup").children('select,input').prop('disabled',false);
+
+      } else {
+        $("#standardMailSetup").show();
+        $("#standardMailSetup").children('select,input').prop('disabled',false);
+
+        $("#mailgunMailSetup").hide();
+        $("#mailgunMailSetup").children('select,input').prop('disabled',true);
+
+      }
+    }
+
     function testMail()
     {      
       var data = $("form").serialize() + "&test=mail";