Added support for one click unsubscribe with confirmation dialog.

Wino.Core.Domain/Models/Reader/MailRenderModel.cs

@@ -11,10 +11,9 @@ namespace Wino.Core.Domain.Models.Reader
     {
         public string RenderHtml { get; }
         public MailRenderingOptions MailRenderingOptions { get; }
-        public List<MimePart> Attachments { get; set; } = new List<MimePart>();
+        public List<MimePart> Attachments { get; set; } = [];
 
-        public string UnsubscribeLink { get; set; }
+        public UnsubscribeInfo UnsubscribeInfo { get; set; }
-        public bool CanUnsubscribe => !string.IsNullOrEmpty(UnsubscribeLink);
 
         public MailRenderModel(string renderHtml, MailRenderingOptions mailRenderingOptions = null)
         {
@@ -22,4 +21,12 @@ namespace Wino.Core.Domain.Models.Reader
             MailRenderingOptions = mailRenderingOptions;
         }
     }
+
+    public class UnsubscribeInfo
+    {
+        public string HttpLink { get; set; }
+        public string MailToLink { get; set; }
+        public bool IsOneClick { get; set; }
+        public bool CanUnsubscribe => HttpLink != null || MailToLink != null;
+    }
 }

Wino.Core.Domain/Translations/en_US/resources.json

@@ -76,6 +76,11 @@
     "DialogMessage_UnlinkAccountsConfirmationTitle": "Unlink Accounts",
     "DialogMessage_EmptySubjectConfirmation": "Missin Subject",
     "DialogMessage_EmptySubjectConfirmationMessage": "Message has no subject. Do you want to continue?",
+    "DialogMessage_UnsubscribeConfirmationTitle": "Unsubscribe",
+    "DialogMessage_UnsubscribeConfirmationOneClickMessage": "Do you want to stop getting messages from {0}?",
+    "DialogMessage_UnsubscribeConfirmationGoToWebsiteMessage": "To stop getting messages from {0}, go to their website to unsubscribe.",
+    "DialogMessage_UnsubscribeConfirmationGoToWebsiteConfirmButton": "Go to website",
+    "DialogMessage_UnsubscribeConfirmationMailtoMessage": "Do you want to stop getting messages from {0}? WinoMail will unsubscribe for you by sending an email from your email account to {1}.",
     "Dialog_DontAskAgain": "Don't ask again",
     "DiscordChannelDisclaimerMessage": "Wino doesn't have it's own Discord server, but special 'wino-mail' channel is hosted at 'Developer Sanctuary' server.\nTo get the updates about Wino please join Developer Sanctuary server and follow 'wino-mail' channel under 'Community Projects'\n\nYou will be directed to server URL since Discord doesn't support channel invites.",
     "DiscordChannelDisclaimerTitle": "Important Discord Information",
@@ -230,6 +235,8 @@
     "Info_UnsupportedFunctionalityTitle": "Unsupported",
     "Info_UnsubscribeLinkInvalidTitle": "Invalid Unsubscribe Uri",
     "Info_UnsubscribeLinkInvalidMessage": "This unsubscribe link is invalid. Failed to unsubscribe from the list.",
+    "Info_UnsubscribeSuccessMessage": "Successfully unsubscribed from {0}.",
+    "Info_UnsubscribeErrorMessage": "Failed to unsubscribe",
     "ImapAdvancedSetupDialog_AuthenticationMethod": "Authentication method",
     "ImapAdvancedSetupDialog_ConnectionSecurity": "Connection security",
     "ImapAuthenticationMethod_Auto": "Auto",

Wino.Core.Domain/Translator.Designer.cs

@@ -403,6 +403,31 @@ namespace Wino.Core.Domain
 		/// </summary>
 		public static string DialogMessage_EmptySubjectConfirmationMessage => Resources.GetTranslatedString(@"DialogMessage_EmptySubjectConfirmationMessage");	
 	
+        /// <summary>
+		/// Unsubscribe
+		/// </summary>
+		public static string DialogMessage_UnsubscribeConfirmationTitle => Resources.GetTranslatedString(@"DialogMessage_UnsubscribeConfirmationTitle");	
+	
+        /// <summary>
+		/// Do you want to stop getting messages from {0}?
+		/// </summary>
+		public static string DialogMessage_UnsubscribeConfirmationOneClickMessage => Resources.GetTranslatedString(@"DialogMessage_UnsubscribeConfirmationOneClickMessage");	
+	
+        /// <summary>
+		/// To stop getting messages from {0}, go to their website to unsubscribe.
+		/// </summary>
+		public static string DialogMessage_UnsubscribeConfirmationGoToWebsiteMessage => Resources.GetTranslatedString(@"DialogMessage_UnsubscribeConfirmationGoToWebsiteMessage");	
+	
+        /// <summary>
+		/// Go to website
+		/// </summary>
+		public static string DialogMessage_UnsubscribeConfirmationGoToWebsiteConfirmButton => Resources.GetTranslatedString(@"DialogMessage_UnsubscribeConfirmationGoToWebsiteConfirmButton");	
+	
+        /// <summary>
+		/// Do you want to stop getting messages from {0}? WinoMail will unsubscribe for you by sending an email from your email account to {1}.
+		/// </summary>
+		public static string DialogMessage_UnsubscribeConfirmationMailtoMessage => Resources.GetTranslatedString(@"DialogMessage_UnsubscribeConfirmationMailtoMessage");	
+	
         /// <summary>
 		/// Don't ask again
 		/// </summary>
@@ -1173,6 +1198,16 @@ namespace Wino.Core.Domain
 		/// </summary>
 		public static string Info_UnsubscribeLinkInvalidMessage => Resources.GetTranslatedString(@"Info_UnsubscribeLinkInvalidMessage");	
 	
+        /// <summary>
+		/// Successfully unsubscribed from {0}.
+		/// </summary>
+		public static string Info_UnsubscribeSuccessMessage => Resources.GetTranslatedString(@"Info_UnsubscribeSuccessMessage");	
+	
+        /// <summary>
+		/// Failed to unsubscribe
+		/// </summary>
+		public static string Info_UnsubscribeErrorMessage => Resources.GetTranslatedString(@"Info_UnsubscribeErrorMessage");	
+	
         /// <summary>
 		/// Authentication method
 		/// </summary>

Wino.Core/Services/MimeFileService.cs

@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using MimeKit;
@@ -221,22 +222,24 @@ namespace Wino.Core.Services
                 }
             }
 
-            // Check for List-Unsubscribe link if possible.
-
             if (message.Headers.Contains(HeaderId.ListUnsubscribe))
             {
-                renderingModel.UnsubscribeLink = message.Headers[HeaderId.ListUnsubscribe].Normalize();
+                var unsubscribeLinks = message.Headers[HeaderId.ListUnsubscribe]
+                    .Normalize()
+                    .Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Select(x => x.Trim([' ', '<', '>']));
 
-                // Sometimes this link is wrapped with < >, remove them.
+                // Only two types of unsubscribe links are possible.
-                if (renderingModel.UnsubscribeLink.StartsWith("<"))
+                // So each has it's own property to simplify the usage.
+                renderingModel.UnsubscribeInfo = new UnsubscribeInfo()
                 {
-                    renderingModel.UnsubscribeLink = renderingModel.UnsubscribeLink.Substring(1, renderingModel.UnsubscribeLink.Length - 2);
+                    HttpLink = unsubscribeLinks.FirstOrDefault(x => x.StartsWith("http", StringComparison.OrdinalIgnoreCase)),
-                }
+                    MailToLink = unsubscribeLinks.FirstOrDefault(x => x.StartsWith("mailto", StringComparison.OrdinalIgnoreCase)),
+                    IsOneClick = message.Headers.Contains(HeaderId.ListUnsubscribePost)
+                };
             }
 
             return renderingModel;
         }
-
-
     }
 }

Wino.Mail.ViewModels/MailRenderingPageViewModel.cs

@@ -2,6 +2,8 @@
 using System.Collections.ObjectModel;
 using System.IO;
 using System.Linq;
+using System.Net.Http;
+using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using CommunityToolkit.Mvvm.ComponentModel;
@@ -47,7 +49,7 @@ namespace Wino.Mail.ViewModels
         #region Properties
 
         public bool ShouldDisplayDownloadProgress => IsIndetermineProgress || (CurrentDownloadPercentage > 0 && CurrentDownloadPercentage <= 100);
-        public bool CanUnsubscribe => CurrentRenderModel?.CanUnsubscribe ?? false;
+        public bool CanUnsubscribe => CurrentRenderModel?.UnsubscribeInfo?.CanUnsubscribe ?? false;
         public bool IsJunkMail => initializedMailItemViewModel?.AssignedFolder != null && initializedMailItemViewModel.AssignedFolder.SpecialFolderType == SpecialFolderType.Junk;
 
         public bool IsImageRenderingDisabled
@@ -172,18 +174,60 @@ namespace Wino.Mail.ViewModels
         [RelayCommand]
         private async Task UnsubscribeAsync()
         {
-            if (!CurrentRenderModel?.CanUnsubscribe ?? false) return;
+            if (!(CurrentRenderModel?.UnsubscribeInfo?.CanUnsubscribe ?? false)) return;
 
-            // TODO: Support for List-Unsubscribe-Post header. It can be done without launching browser.
+            bool confirmed;
-            // https://certified-senders.org/wp-content/uploads/2017/07/CSA_one-click_list-unsubscribe.pdf
 
-            // TODO: Sometimes unsubscribe link can be a mailto: link.
+            // Try to unsubscribe by http first.
-            // or sometimes with mailto AND http link. We need to handle this.
+            if (CurrentRenderModel.UnsubscribeInfo.HttpLink is not null)
-
+            {
-            if (Uri.IsWellFormedUriString(CurrentRenderModel.UnsubscribeLink, UriKind.RelativeOrAbsolute))
+                if (!Uri.IsWellFormedUriString(CurrentRenderModel.UnsubscribeInfo.HttpLink, UriKind.RelativeOrAbsolute))
-                await NativeAppService.LaunchUriAsync(new Uri((CurrentRenderModel.UnsubscribeLink)));
+                {
-            else
                     DialogService.InfoBarMessage(Translator.Info_UnsubscribeLinkInvalidTitle, Translator.Info_UnsubscribeLinkInvalidMessage, InfoBarMessageType.Error);
+                    return;
+                }
+
+                // Support for List-Unsubscribe-Post header. It can be done without launching browser.
+                // https://datatracker.ietf.org/doc/html/rfc8058
+                if (CurrentRenderModel.UnsubscribeInfo.IsOneClick)
+                {
+                    confirmed = await DialogService.ShowConfirmationDialogAsync(string.Format(Translator.DialogMessage_UnsubscribeConfirmationOneClickMessage, FromName), Translator.DialogMessage_UnsubscribeConfirmationTitle, Translator.Unsubscribe);
+                    if (!confirmed) return;
+
+                    using var httpClient = new HttpClient();
+
+                    var unsubscribeRequest = new HttpRequestMessage(HttpMethod.Post, CurrentRenderModel.UnsubscribeInfo.HttpLink)
+                    {
+                        Content = new StringContent("List-Unsubscribe=One-Click", Encoding.UTF8, "application/x-www-form-urlencoded")
+                    };
+
+                    var result = await httpClient.SendAsync(unsubscribeRequest);
+                    if (result.IsSuccessStatusCode)
+                    {
+                        DialogService.InfoBarMessage(Translator.Unsubscribe, string.Format(Translator.Info_UnsubscribeSuccessMessage, FromName), InfoBarMessageType.Success);
+                    }
+                    else
+                    {
+                        DialogService.InfoBarMessage(Translator.GeneralTitle_Error, Translator.Info_UnsubscribeErrorMessage, InfoBarMessageType.Error);
+                    }
+                }
+                else
+                {
+                    confirmed = await DialogService.ShowConfirmationDialogAsync(string.Format(Translator.DialogMessage_UnsubscribeConfirmationGoToWebsiteMessage, FromName), Translator.DialogMessage_UnsubscribeConfirmationTitle, Translator.DialogMessage_UnsubscribeConfirmationGoToWebsiteConfirmButton);
+                    if (!confirmed) return;
+
+                    await NativeAppService.LaunchUriAsync(new Uri(CurrentRenderModel.UnsubscribeInfo.HttpLink));
+                }
+            }
+            else if (CurrentRenderModel.UnsubscribeInfo.MailToLink is not null)
+            {
+                confirmed = await DialogService.ShowConfirmationDialogAsync(string.Format(Translator.DialogMessage_UnsubscribeConfirmationMailtoMessage, FromName, new string(CurrentRenderModel.UnsubscribeInfo.MailToLink.Skip(7).ToArray())), Translator.DialogMessage_UnsubscribeConfirmationTitle, Translator.Unsubscribe);
+
+                if (!confirmed) return;
+
+                // TODO:Implement mailto link support.
+                DialogService.InfoBarMessage(Translator.GeneralTitle_Error, "Mailto unsubscribe is not supported yet.", InfoBarMessageType.Error);
+            }
         }
 
         [RelayCommand]