converted user signup mail

app/mailers/user_mailer.rb

@@ -108,7 +108,28 @@ class UserMailer < ActionMailer::Base
       mail :to => to, :subject => subject
     end
   end
-  
+
+  def user_signed_up(token)
+    @token = token
+    @activation_url = url_for(:controller => :account,
+                              :action     => :activate,
+                              :token      => @token.value)
+
+    headers["X-OpenProject-Type"] = "Account"
+
+    user = token.user
+
+    to = user.mail
+
+    locale = user.language.presence || I18n.default_locale
+
+    I18n.with_locale(locale) do
+      subject = t(:mail_subject_register, :value => Setting.app_title)
+
+      mail :to => to, :subject => subject
+    end
+  end
+
 private
 
   def assigned_to_header(user)

app/views/mailer/register.html.erb

@@ -1,2 +0,0 @@
-<p><%= l(:mail_body_register) %><br />
-<%= auto_link(@url) %></p>

app/views/mailer/register.text.erb

@@ -1,2 +0,0 @@
-<%= l(:mail_body_register) %>
-<%= @url %>

app/views/user_mailer/user_signed_up.html.erb

@@ -0,0 +1,2 @@
+<p><%= l(:mail_body_register) %><br />
+<%= link_to @activation_url, @activation_url %></p>

app/views/user_mailer/user_signed_up.text.erb

@@ -0,0 +1,2 @@
+<%= t(:mail_body_register) %>
+<%= @activation_url %>

test/functional/user_mailer_test.rb

@@ -173,4 +173,15 @@ class UserMailerTest < ActionMailer::TestCase
     assert ActionMailer::Base.deliveries.empty?
   end
 
+  def test_user_signed_up
+    token = Token.find(1)
+    Setting.host_name = 'redmine.foo'
+    Setting.protocol = 'https'
+
+    ActionMailer::Base.deliveries.clear
+    assert UserMailer.user_signed_up(token).deliver
+    mail = ActionMailer::Base.deliveries.last
+    assert mail.body.include?("https://redmine.foo/account/activate?token=#{token.value}")
+  end
+
 end