summaryrefslogtreecommitdiff
path: root/app/mailers/notify.rb
blob: 0bc1c19e9cd3b5099ce2583853ced1f0868d95cb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
class Notify < BaseMailer
  include ActionDispatch::Routing::PolymorphicRoutes

  include Emails::Issues
  include Emails::MergeRequests
  include Emails::Notes
  include Emails::Projects
  include Emails::Profile
  include Emails::Builds
  include Emails::Pipelines
  include Emails::Members

  helper MergeRequestsHelper
  helper DiffHelper
  helper BlobHelper
  helper EmailsHelper
  helper MembersHelper
  helper GitlabRoutingHelper

  def test_email(recipient_email, subject, body)
    mail(to: recipient_email,
         subject: subject,
         body: body.html_safe,
         content_type: 'text/html'
        )
  end

  # Splits "gitlab.corp.company.com" up into "gitlab.corp.company.com",
  # "corp.company.com" and "company.com".
  # Respects set tld length so "company.co.uk" won't match "somethingelse.uk"
  def self.allowed_email_domains
    domain_parts = Gitlab.config.gitlab.host.split(".")
    allowed_domains = []
    begin
      allowed_domains << domain_parts.join(".")
      domain_parts.shift
    end while domain_parts.length > ActionDispatch::Http::URL.tld_length

    allowed_domains
  end

  def can_send_from_user_email?(sender)
    sender_domain = sender.email.split("@").last
    self.class.allowed_email_domains.include?(sender_domain)
  end

  private

  # Return an email address that displays the name of the sender.
  # Only the displayed name changes; the actual email address is always the same.
  def sender(sender_id, send_from_user_email = false)
    return unless sender = User.find(sender_id)

    address = default_sender_address
    address.display_name = sender.name

    if send_from_user_email && can_send_from_user_email?(sender)
      address.address = sender.email
    end

    address.format
  end

  # Look up a User by their ID and return their email address
  #
  # recipient_id - User ID
  #
  # Returns a String containing the User's email address.
  def recipient(recipient_id)
    @current_user = User.find(recipient_id)
    @current_user.notification_email
  end

  # Formats arguments into a String suitable for use as an email subject
  #
  # extra - Extra Strings to be inserted into the subject
  #
  # Examples
  #
  #   >> subject('Lorem ipsum')
  #   => "Lorem ipsum"
  #
  #   # Automatically inserts Project name when @project is set
  #   >> @project = Project.last
  #   => #<Project id: 1, name: "Ruby on Rails", path: "ruby_on_rails", ...>
  #   >> subject('Lorem ipsum')
  #   => "Ruby on Rails | Lorem ipsum "
  #
  #   # Accepts multiple arguments
  #   >> subject('Lorem ipsum', 'Dolor sit amet')
  #   => "Lorem ipsum | Dolor sit amet"
  def subject(*extra)
    subject = ""
    subject << "#{@project.name} | " if @project
    subject << extra.join(' | ') if extra.present?
    subject << " | #{Gitlab.config.gitlab.email_subject_suffix}" if Gitlab.config.gitlab.email_subject_suffix.present?
    subject
  end

  # Return a string suitable for inclusion in the 'Message-Id' mail header.
  #
  # The message-id is generated from the unique URL to a model object.
  def message_id(model)
    model_name = model.class.model_name.singular_route_key
    "<#{model_name}_#{model.id}@#{Gitlab.config.gitlab.host}>"
  end

  def mail_thread(model, headers = {})
    add_project_headers
    headers["X-GitLab-#{model.class.name}-ID"] = model.id
    headers['X-GitLab-Reply-Key'] = reply_key

    if !@labels_url && @sent_notification && @sent_notification.unsubscribable?
      headers['List-Unsubscribe'] = "<#{unsubscribe_sent_notification_url(@sent_notification, force: true)}>"

      @sent_notification_url = unsubscribe_sent_notification_url(@sent_notification)
    end

    if Gitlab::IncomingEmail.enabled?
      address = Mail::Address.new(Gitlab::IncomingEmail.reply_address(reply_key))
      address.display_name = @project.name_with_namespace

      headers['Reply-To'] = address

      fallback_reply_message_id = "<reply-#{reply_key}@#{Gitlab.config.gitlab.host}>".freeze
      headers['References'] ||= ''
      headers['References'] << ' ' << fallback_reply_message_id

      @reply_by_email = true
    end

    mail(headers)
  end

  # Send an email that starts a new conversation thread,
  # with headers suitable for grouping by thread in email clients.
  #
  # See: mail_answer_thread
  def mail_new_thread(model, headers = {})
    headers['Message-ID'] = message_id(model)

    mail_thread(model, headers)
  end

  # Send an email that responds to an existing conversation thread,
  # with headers suitable for grouping by thread in email clients.
  #
  # For grouping emails by thread, email clients heuristics require the answers to:
  #
  #  * have a subject that begin by 'Re: '
  #  * have a 'In-Reply-To' or 'References' header that references the original 'Message-ID'
  #
  def mail_answer_thread(model, headers = {})
    headers['Message-ID'] = "<#{SecureRandom.hex}@#{Gitlab.config.gitlab.host}>"
    headers['In-Reply-To'] = message_id(model)
    headers['References'] = message_id(model)

    headers[:subject].prepend('Re: ') if headers[:subject]

    mail_thread(model, headers)
  end

  def reply_key
    @reply_key ||= SentNotification.reply_key
  end

  def add_project_headers
    return unless @project

    headers['X-GitLab-Project'] = @project.name
    headers['X-GitLab-Project-Id'] = @project.id
    headers['X-GitLab-Project-Path'] = @project.path_with_namespace
  end
end