Make chat authorization to work [ci skip]

app/controllers/projects/services_controller.rb

@@ -28,6 +28,8 @@ class Projects::ServicesController < Projects::ApplicationController
   end
 
   def test
+    return render_404 unless @service.can_test?
+
     data = @service.test_data(project, current_user)
     outcome = @service.test(data)
 

app/helpers/triggers_helper.rb

@@ -6,4 +6,8 @@ module TriggersHelper
       "#{Settings.gitlab.url}/api/v3/projects/#{project_id}/ref/#{ref}/trigger/builds"
     end
   end
+
+  def service_trigger_url(service)
+    "#{Settings.gitlab.url}/api/v3/projects/#{service.project_id}/services/#{service.to_param}/trigger"
+  end
 end

app/models/project.rb

@@ -91,6 +91,7 @@ class Project < ActiveRecord::Base
   has_one :assembla_service, dependent: :destroy
   has_one :asana_service, dependent: :destroy
   has_one :gemnasium_service, dependent: :destroy
+  has_one :mattermost_chat_service, dependent: :destroy
   has_one :slack_service, dependent: :destroy
   has_one :buildkite_service, dependent: :destroy
   has_one :bamboo_service, dependent: :destroy

app/models/project_services/chat_service.rb

@@ -3,13 +3,16 @@
 class ChatService < Service
   default_value_for :category, 'chat'
 
-  has_many :chat_users
+  has_many :chat_names, foreign_key: :service_id
 
   def valid_token?(token)
-    self.respond_to?(:token) && self.token.present? && ActiveSupport::SecurityUtils.variable_size_secure_compare(token, self.token)
+    self.respond_to?(:token) &&
+      self.token.present? &&
+      ActiveSupport::SecurityUtils.variable_size_secure_compare(token, self.token)
   end
 
   def supported_events
+    []
   end
 
   def trigger(params)

app/models/project_services/mattermost_chat_service.rb

-# Base class for Chat services
 class MattermostChatService < ChatService
+  include TriggersHelper
+
+  prop_accessor :token
+
+  def can_test?
+    false
+  end
+
   def title
     'Mattermost'
   end
@@ -13,28 +20,40 @@ class MattermostChatService < ChatService
   end
 
   def help
-    'This service allows you to use slash commands with your Mattermost installation.<br/>
-    To setup this Service you need to create a new <b>"Slash commands"</b> in your Mattermost integration panel,
-    and enter the token below.'
+    "This service allows you to use slash commands with your Mattermost installation.<br/>
+    To setup this Service you need to create a new <b>Slash commands</b> in your Mattermost integration panel.<br/>
+    <br/>
+    Create integration with URL #{service_trigger_url(self)} and enter the token below."
   end
 
   def fields
     [
-      { type: 'text', name: 'token', placeholder: 'https://hooks.slack.com/services/...' }
+      { type: 'text', name: 'token', placeholder: '' }
     ]
   end
 
   def trigger(params)
-    user = ChatNames::FindUserService.new(chat_names, params).execute
+    return nil unless valid_token?(params[:token])
+
+    user = find_chat_user(params)
     return authorize_chat_name(params) unless user
 
-    Mattermost::CommandService.new(project, user, params).execute
+    Mattermost::CommandService.new(project, user, params.slice(:command, :text)).
+      execute
   end
 
   private
 
+  def find_chat_user(params)
+    params = params.slice(:team_id, :user_id)
+    ChatNames::FindUserService.
+      new(chat_names, params).
+      execute
+  end
+
   def authorize_chat_name(params)
-    url = ChatNames::RequestService.new(service, params).execute
+    params = params.slice(:team_id, :team_domain, :user_id, :user_name)
+    url = ChatNames::AuthorizeUserService.new(self, params).execute
 
     {
       response_type: :ephemeral,

app/models/service.rb

@@ -214,6 +214,7 @@ class Service < ActiveRecord::Base
       hipchat
       irker
       jira
+      mattermost_chat
       pivotaltracker
       pushover
       redmine

app/views/shared/_service_settings.html.haml

@@ -10,7 +10,8 @@
   .col-sm-10
     = form.check_box :active
 
-.form-group
+- if @service.supported_events.present?
+  .form-group
     = form.label :url, "Trigger", class: 'control-label'
 
     .col-sm-10

config/environments/development.rb

@@ -45,4 +45,7 @@ Rails.application.configure do
 
   # Do not log asset requests
   config.assets.quiet = true
+
+  # Make hot reloading to work with Grape API
+  ActiveSupport::Dependencies.explicitly_unloadable_constants << "API"
 end

lib/api/services.rb

 module API
   # Projects API
   class Services < Grape::API
+    resource :projects do
       before { authenticate! }
       before { authorize_admin_project }
 
-    resource :projects do
       # Set <service_slug> service for project
       #
       # Example Request:
@@ -59,5 +59,28 @@ module API
         present project_service, with: Entities::ProjectService, include_passwords: current_user.is_admin?
       end
     end
+
+    resource :projects do
+      post ':id/services/:service_slug/trigger' do
+        project = Project.find_with_namespace(params[:id]) || Project.find_by(id: params[:id])
+
+        underscored_service = params[:service_slug].underscore
+
+        not_found!('Service') unless Service.available_services_names.include?(underscored_service)
+        service_method = "#{underscored_service}_service"
+
+        service = project.public_send(service_method)
+
+        result = if service.try(:active?) && service.respond_to?(:trigger)
+          service.trigger(params)
+        end
+
+        if result
+          present result, status: result[:status] || 200
+        else
+          not_found!('Service')
+        end
+      end
+    end
   end
 end