1 files changed, 99 insertions, 0 deletions
diff --git a/app/models/integrations/emails_on_push.rb b/app/models/integrations/emails_on_push.rb
new file mode 100644
index 00000000000..e277633664f
--- /dev/null
+++ b/app/models/integrations/emails_on_push.rb
@@ -0,0 +1,99 @@
+# frozen_string_literal: true
+
+module Integrations
+  class EmailsOnPush < Integration
+    include NotificationBranchSelection
+
+    RECIPIENTS_LIMIT = 750
+
+    boolean_accessor :send_from_committer_email
+    boolean_accessor :disable_diffs
+    prop_accessor :recipients, :branches_to_be_notified
+    validates :recipients, presence: true, if: :validate_recipients?
+    validate :number_of_recipients_within_limit, if: :validate_recipients?
+
+    def self.valid_recipients(recipients)
+      recipients.split.select do |recipient|
+        recipient.include?('@')
+      end.uniq(&:downcase)
+    end
+
+    def title
+      s_('EmailsOnPushService|Emails on push')
+    end
+
+    def description
+      s_('EmailsOnPushService|Email the commits and diff of each push to a list of recipients.')
+    end
+
+    def self.to_param
+      'emails_on_push'
+    end
+
+    def self.supported_events
+      %w(push tag_push)
+    end
+
+    def initialize_properties
+      super
+
+      self.branches_to_be_notified = 'all' if branches_to_be_notified.nil?
+    end
+
+    def execute(push_data)
+      return unless supported_events.include?(push_data[:object_kind])
+      return if project.emails_disabled?
+      return unless notify_for_ref?(push_data)
+
+      EmailsOnPushWorker.perform_async(
+        project_id,
+        recipients,
+        push_data,
+        send_from_committer_email: send_from_committer_email?,
+        disable_diffs:             disable_diffs?
+      )
+    end
+
+    def notify_for_ref?(push_data)
+      return true if push_data[:object_kind] == 'tag_push'
+      return true if push_data.dig(:object_attributes, :tag)
+
+      notify_for_branch?(push_data)
+    end
+
+    def send_from_committer_email?
+      Gitlab::Utils.to_boolean(self.send_from_committer_email)
+    end
+
+    def disable_diffs?
+      Gitlab::Utils.to_boolean(self.disable_diffs)
+    end
+
+    def fields
+      domains = Notify.allowed_email_domains.map { |domain| "user@#{domain}" }.join(", ")
+      [
+        { type: 'checkbox', name: 'send_from_committer_email', title: s_("EmailsOnPushService|Send from committer"),
+          help: s_("EmailsOnPushService|Send notifications from the committer's email address if the domain matches the domain used by your GitLab instance (such as %{domains}).") % { domains: domains } },
+        { type: 'checkbox', name: 'disable_diffs', title: s_("EmailsOnPushService|Disable code diffs"),
+          help: s_("EmailsOnPushService|Don't include possibly sensitive code diffs in notification body.") },
+        { type: 'select', name: 'branches_to_be_notified', choices: branch_choices },
+        {
+          type: 'textarea',
+          name: 'recipients',
+          placeholder: s_('EmailsOnPushService|tanuki@example.com gitlab@example.com'),
+          help: s_('EmailsOnPushService|Emails separated by whitespace.')
+        }
+      ]
+    end
+
+    private
+
+    def number_of_recipients_within_limit
+      return if recipients.blank?
+
+      if self.class.valid_recipients(recipients).size > RECIPIENTS_LIMIT
+        errors.add(:recipients, s_("EmailsOnPushService|can't exceed %{recipients_limit}") % { recipients_limit: RECIPIENTS_LIMIT })
+      end
+    end
+  end
+end