1 files changed, 67 insertions, 0 deletions
diff --git a/app/models/integrations/base_slash_commands.rb b/app/models/integrations/base_slash_commands.rb
new file mode 100644
index 00000000000..eacf1184aae
--- /dev/null
+++ b/app/models/integrations/base_slash_commands.rb
@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+# Base class for ChatOps integrations
+# This class is not meant to be used directly, but only to inherrit from.
+module Integrations
+  class BaseSlashCommands < Integration
+    default_value_for :category, 'chat'
+
+    prop_accessor :token
+
+    has_many :chat_names, foreign_key: :service_id, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
+
+    def valid_token?(token)
+      self.respond_to?(:token) &&
+        self.token.present? &&
+        ActiveSupport::SecurityUtils.secure_compare(token, self.token)
+    end
+
+    def self.supported_events
+      %w()
+    end
+
+    def can_test?
+      false
+    end
+
+    def fields
+      [
+        { type: 'text', name: 'token', placeholder: 'XXxxXXxxXXxxXXxxXXxxXXxx' }
+      ]
+    end
+
+    def trigger(params)
+      return unless valid_token?(params[:token])
+
+      chat_user = find_chat_user(params)
+      user = chat_user&.user
+
+      if user
+        unless user.can?(:use_slash_commands)
+          return Gitlab::SlashCommands::Presenters::Access.new.deactivated if user.deactivated?
+
+          return Gitlab::SlashCommands::Presenters::Access.new.access_denied(project)
+        end
+
+        Gitlab::SlashCommands::Command.new(project, chat_user, params).execute
+      else
+        url = authorize_chat_name_url(params)
+        Gitlab::SlashCommands::Presenters::Access.new(url).authorize
+      end
+    end
+
+    private
+
+    # rubocop: disable CodeReuse/ServiceClass
+    def find_chat_user(params)
+      ChatNames::FindUserService.new(self, params).execute
+    end
+    # rubocop: enable CodeReuse/ServiceClass
+
+    # rubocop: disable CodeReuse/ServiceClass
+    def authorize_chat_name_url(params)
+      ChatNames::AuthorizeUserService.new(self, params).execute
+    end
+    # rubocop: enable CodeReuse/ServiceClass
+  end
+end