Add In-Reply-To, References headers to email

Closes https://github.com/openstreetmap/openstreetmap-website/issues/2430

diff --git a/app/mailers/notifier.rb b/app/mailers/notifier.rb
index b125999810b0571127e752a544ff2c7db15d1098..676ae6f3b5cf56f19bc305718d3995161963e340 100644 (file)
--- a/app/mailers/notifier.rb
+++ b/app/mailers/notifier.rb
@@ -94,11 +94,14 @@ class Notifier < ApplicationMailer
       @readurl = diary_entry_url(comment.diary_entry.user, comment.diary_entry, :anchor => "comment#{comment.id}")
       @commenturl = diary_entry_url(comment.diary_entry.user, comment.diary_entry, :anchor => "newcomment")
       @replyurl = new_message_url(comment.user, :message => { :title => "Re: #{comment.diary_entry.title}" })
-
+      @ref = "osm-diary-#{comment.diary_entry.id}@#{Settings.server_url}"
       @author = @from_user
 
       attach_user_avatar(comment.user)
 
+      headers["In-Reply-To"] = @ref
+      headers["References"]  = @ref
+
       mail :from => from_address(comment.user.display_name, "c", comment.id, comment.digest, recipient.id),
            :to => recipient.email,
            :subject => I18n.t("notifier.diary_comment_notification.subject", :user => comment.user.display_name)
@@ -126,6 +129,7 @@ class Notifier < ApplicationMailer
       @comment = comment.body
       @owner = recipient == comment.note.author
       @event = comment.event
+      @ref = "osm-note-#{comment.note.id}@#{Settings.server_url}"
 
       @commenter = if comment.author
                      comment.author.display_name
@@ -136,6 +140,9 @@ class Notifier < ApplicationMailer
       @author = @commenter
       attach_user_avatar(comment.author)
 
+      headers["In-Reply-To"] = @ref
+      headers["References"]  = @ref
+
       subject = if @owner
                   I18n.t("notifier.note_comment_notification.#{@event}.subject_own", :commenter => @commenter)
                 else
@@ -157,6 +164,7 @@ class Notifier < ApplicationMailer
       @time = comment.created_at
       @changeset_author = comment.changeset.user.display_name
       @author = @commenter
+      @ref = "osm-changeset-#{comment.changeset.id}@#{Settings.server_url}"
 
       subject = if @owner
                   I18n.t("notifier.changeset_comment_notification.commented.subject_own", :commenter => @commenter)
@@ -166,6 +174,9 @@ class Notifier < ApplicationMailer
 
       attach_user_avatar(comment.author)
 
+      headers["In-Reply-To"] = @ref
+      headers["References"]  = @ref
+
       mail :to => recipient.email, :subject => subject
     end
   end