Enable Multi MIME and add alt tags to images (#1838)

* Add alt to mail images

* Use Mulipart MIME in emails

* Requested PR changes

src/Ombi.Notifications.Templates/Templates/BasicTemplate.html

@@ -144,7 +144,7 @@
                             <table border="0" cellpadding="0" cellspacing="0" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 100%;" width="100%">
                                 <tr>
                                     <td align="center">
-                                        <img src="{@LOGO}" width="400px"  text-align="center" />
+                                        <img src="{@LOGO}" alt="Ombi logo" width="400px"  text-align="center" />
                                     </td>
                                 </tr>
                                 <tr>
@@ -155,7 +155,7 @@
                                 </tr>
                                 <tr>
                                     <td align="center">
-                                        <img src="{@IMGSRC}" width="400px" text-align="center" />
+                                        <img src="{@IMGSRC}" alt="Poster" width="400px" text-align="center" />
                                     </td>
                                 </tr>
                             </table>

src/Ombi.Notifications/Agents/EmailNotification.cs

@@ -71,6 +71,13 @@ namespace Ombi.Notifications.Agents
             return message;
         }
 
+        private async Task<string> LoadPlainTextMessage(NotificationType type, NotificationOptions model, EmailNotificationSettings settings)
+        {
+            var parsed = await LoadTemplate(NotificationAgent.Email, type, model);
+
+            return parsed.Message;
+        }
+
         protected override async Task NewRequest(NotificationOptions model, EmailNotificationSettings settings)
         {
             var message = await LoadTemplate(NotificationType.NewRequest, model, settings);
@@ -79,6 +86,9 @@ namespace Ombi.Notifications.Agents
                 return;
             }
 
+            var plaintext = await LoadPlainTextMessage(NotificationType.NewRequest, model, settings);
+            message.Other.Add("PlainTextBody", plaintext);
+
             await Send(message, settings);
         }
 
@@ -90,6 +100,9 @@ namespace Ombi.Notifications.Agents
                 return;
             }
 
+            var plaintext = await LoadPlainTextMessage(NotificationType.Issue, model, settings);
+            message.Other.Add("PlainTextBody", plaintext);
+
             // Issues should be sent to admin
             message.To = settings.AdminEmail;
 
@@ -126,6 +139,9 @@ namespace Ombi.Notifications.Agents
                 To = settings.AdminEmail,
             };
 
+            var plaintext = $"Hello! The user '{user}' has requested {title} but it could not be added. This has been added into the requests queue and will keep retrying";
+            message.Other.Add("PlainTextBody", plaintext);
+
             await Send(message, settings);
         }
 
@@ -136,6 +152,10 @@ namespace Ombi.Notifications.Agents
             {
                 return;
             }
+
+            var plaintext = await LoadPlainTextMessage(NotificationType.RequestDeclined, model, settings);
+            message.Other.Add("PlainTextBody", plaintext);
+
             message.To = model.RequestType == RequestType.Movie
                 ? MovieRequest.RequestedUser.Email
                 : TvRequest.RequestedUser.Email;
@@ -149,6 +169,10 @@ namespace Ombi.Notifications.Agents
             {
                 return;
             }
+
+            var plaintext = await LoadPlainTextMessage(NotificationType.RequestApproved, model, settings);
+            message.Other.Add("PlainTextBody", plaintext);
+
             message.To = model.RequestType == RequestType.Movie
                 ? MovieRequest.RequestedUser.Email
                 : TvRequest.RequestedUser.Email;
@@ -162,6 +186,10 @@ namespace Ombi.Notifications.Agents
             {
                 return;
             }
+
+            var plaintext = await LoadPlainTextMessage(NotificationType.RequestAvailable, model, settings);
+            message.Other.Add("PlainTextBody", plaintext);
+
             message.To = model.RequestType == RequestType.Movie
                 ? MovieRequest.RequestedUser.Email
                 : TvRequest.RequestedUser.Email;

src/Ombi.Notifications/GenericEmailProvider.cs

@@ -40,7 +40,7 @@ namespace Ombi.Notifications
                 var body = new BodyBuilder
                 {
                     HtmlBody = html,
-                    //TextBody = model.Other["PlainTextBody"]
+                    TextBody = model.Other["PlainTextBody"]
                 };
 
                 var message = new MimeMessage
@@ -104,7 +104,7 @@ namespace Ombi.Notifications
                 var body = new BodyBuilder
                 {
                     HtmlBody = model.Message,
-                    //TextBody = model.Other["PlainTextBody"]
+                    TextBody = model.Other["PlainTextBody"]
                 };
 
                 var message = new MimeMessage