Expose ApplicationSetting visibility settings as String

Use strings for the ApplicationSetting properties:
 - restricted_visibility_levels
 - default_project_visibility
 - default_snippet_visibility
 - default_group_visibility

app/models/application_setting.rb

@@ -198,6 +198,7 @@ class ApplicationSetting < ActiveRecord::Base
       default_project_visibility: Settings.gitlab.default_projects_features['visibility_level'],
       default_projects_limit: Settings.gitlab['default_projects_limit'],
       default_snippet_visibility: Settings.gitlab.default_projects_features['visibility_level'],
+      default_group_visibility: Settings.gitlab.default_projects_features['visibility_level'],
       disabled_oauth_sign_in_sources: [],
       domain_whitelist: Settings.gitlab['domain_whitelist'],
       gravatar_enabled: Settings.gravatar['enabled'],

doc/api/settings.md

@@ -32,12 +32,13 @@ Example response:
    "updated_at" : "2016-01-04T15:44:55.176Z",
    "session_expire_delay" : 10080,
    "home_page_url" : null,
-   "default_snippet_visibility" : 0,
+   "default_snippet_visibility" : "private",
    "domain_whitelist" : [],
    "domain_blacklist_enabled" : false,
    "domain_blacklist" : [],
    "created_at" : "2016-01-04T15:44:55.176Z",
-   "default_project_visibility" : 0,
+   "default_project_visibility" : "private",
+   "default_group_visibility" : "private",
    "gravatar_enabled" : true,
    "sign_in_text" : null,
    "container_registry_token_expire_delay": 5,
@@ -65,11 +66,12 @@ PUT /application/settings
 | `sign_in_text`      | string  | no  | Text on login page |
 | `home_page_url`     | string  | no  | Redirect to this URL when not logged in |
 | `default_branch_protection` | integer | no | Determine if developers can push to master. Can take `0` _(not protected, both developers and masters can push new commits, force push or delete the branch)_, `1` _(partially protected, developers can push new commits, but cannot force push or delete the branch, masters can do anything)_ or `2` _(fully protected, developers cannot push new commits, force push or delete the branch, masters can do anything)_ as a parameter. Default is `2`. |
-| `restricted_visibility_levels` | array of integers | no | Selected levels cannot be used by non-admin users for projects or snippets. Can take `0` _(Private)_, `1` _(Internal)_ and `2` _(Public)_ as a parameter. Default is null which means there is no restriction. |
+| `restricted_visibility_levels` | array of strings | no | Selected levels cannot be used by non-admin users for projects or snippets. Can take `private`, `internal` and `public` as a parameter. Default is null which means there is no restriction. |
 | `max_attachment_size` | integer | no | Limit attachment size in MB |
 | `session_expire_delay` | integer | no | Session duration in minutes. GitLab restart is required to apply changes |
-| `default_project_visibility` | integer | no | What visibility level new projects receive. Can take `0` _(Private)_, `1` _(Internal)_ and `2` _(Public)_ as a parameter. Default is `0`.|
-| `default_snippet_visibility` | integer | no | What visibility level new snippets receive. Can take `0` _(Private)_, `1` _(Internal)_ and `2` _(Public)_ as a parameter. Default is `0`.|
+| `default_project_visibility` | string | no | What visibility level new projects receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.|
+| `default_snippet_visibility` | string | no | What visibility level new snippets receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.|
+| `default_group_visibility` | string | no | What visibility level new groups receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.|
 | `domain_whitelist` | array of strings | no | Force people to use only corporate emails for sign-up. Default is null, meaning there is no restriction. |
 | `domain_blacklist_enabled` | boolean | no | Enable/disable the `domain_blacklist` |
 | `domain_blacklist` | array of strings | yes (if `domain_blacklist_enabled` is `true`) | People trying to sign-up with emails from this domain will not be allowed to do so. |
@@ -93,7 +95,7 @@ PUT /application/settings
 | `terminal_max_session_time` | integer | no | Maximum time for web terminal websocket connection (in seconds). Set to 0 for unlimited time. |
 
 ```bash
-curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/application/settings?signup_enabled=false&default_project_visibility=1
+curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/application/settings?signup_enabled=false&default_project_visibility=internal
 ```
 
 Example response:
@@ -113,8 +115,9 @@ Example response:
   "restricted_visibility_levels": [],
   "max_attachment_size": 10,
   "session_expire_delay": 10080,
-  "default_project_visibility": 1,
-  "default_snippet_visibility": 0,
+  "default_project_visibility": "internal",
+  "default_snippet_visibility": "private",
+  "default_group_visibility": "private",
   "domain_whitelist": [],
   "domain_blacklist_enabled" : false,
   "domain_blacklist" : [],

lib/api/entities.rb

@@ -606,12 +606,14 @@ module API
       expose :updated_at
       expose :home_page_url
       expose :default_branch_protection
-      expose :restricted_visibility_levels
+      expose(:restricted_visibility_levels) do |setting, _options|
+        setting.restricted_visibility_levels.map { |level| Gitlab::VisibilityLevel.string_level(level) }
+      end
       expose :max_attachment_size
       expose :session_expire_delay
-      expose :default_project_visibility
-      expose :default_snippet_visibility
-      expose :default_group_visibility
+      expose(:default_project_visibility) { |setting, _options| Gitlab::VisibilityLevel.string_level(setting.default_project_visibility) }
+      expose(:default_snippet_visibility) { |setting, _options| Gitlab::VisibilityLevel.string_level(setting.default_snippet_visibility) }
+      expose(:default_group_visibility) { |setting, _options| Gitlab::VisibilityLevel.string_level(setting.default_group_visibility) }
       expose :default_artifacts_expire_in
       expose :domain_whitelist
       expose :domain_blacklist_enabled

lib/api/settings.rb

@@ -7,6 +7,20 @@ module API
         @current_setting ||=
           (ApplicationSetting.current || ApplicationSetting.create_from_defaults)
       end
+
+      def map_setting_visibility_levels(attrs)
+        [:default_project_visibility, :default_snippet_visibility, :default_group_visibility].each do |param|
+          visibility = attrs.delete(param)
+          if visibility
+            attrs[param] = Gitlab::VisibilityLevel.string_options[visibility]
+          end
+        end
+        restricted_levels = attrs.delete(:restricted_visibility_levels)
+        if restricted_levels
+          attrs[:restricted_visibility_levels] = Gitlab::VisibilityLevel.string_options.values_at(*restricted_levels)
+        end
+        attrs
+      end
     end
 
     desc 'Get the current application settings' do
@@ -21,9 +35,9 @@ module API
     end
     params do
       optional :default_branch_protection, type: Integer, values: [0, 1, 2], desc: 'Determine if developers can push to master'
-      optional :default_project_visibility, type: Integer, values: Gitlab::VisibilityLevel.values, desc: 'The default project visibility'
-      optional :default_snippet_visibility, type: Integer, values: Gitlab::VisibilityLevel.values, desc: 'The default snippet visibility'
-      optional :default_group_visibility, type: Integer, values: Gitlab::VisibilityLevel.values, desc: 'The default group visibility'
+      optional :default_project_visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The default project visibility'
+      optional :default_snippet_visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The default snippet visibility'
+      optional :default_group_visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The default group visibility'
       optional :restricted_visibility_levels, type: Array[String], desc: 'Selected levels cannot be used by non-admin users for projects or snippets. If the public level is restricted, user profiles are only visible to logged in users.'
       optional :import_sources, type: Array[String], values: %w[github bitbucket gitlab google_code fogbugz git gitlab_project],
                                 desc: 'Enabled sources for code import during project creation. OmniAuth must be configured for GitHub, Bitbucket, and GitLab.com'
@@ -141,7 +155,9 @@ module API
                       :repository_storages, :repository_size_limit
     end
     put "application/settings" do
-      if current_settings.update_attributes(declared_params(include_missing: false))
+      attrs = map_setting_visibility_levels(declared_params(include_missing: false))
+
+      if current_settings.update_attributes(attrs)
         present current_settings, with: Entities::ApplicationSetting
       else
         render_validation_error!(current_settings)

lib/api/v3/entities.rb

@@ -189,6 +189,39 @@ module API
         expose :shared_projects, using: Entities::Project
       end
 
+      class ApplicationSetting < Grape::Entity
+        expose :id
+        expose :default_projects_limit
+        expose :signup_enabled
+        expose :signin_enabled
+        expose :gravatar_enabled
+        expose :sign_in_text
+        expose :after_sign_up_text
+        expose :created_at
+        expose :updated_at
+        expose :home_page_url
+        expose :default_branch_protection
+        expose :restricted_visibility_levels
+        expose :max_attachment_size
+        expose :session_expire_delay
+        expose :default_project_visibility
+        expose :default_snippet_visibility
+        expose :default_group_visibility
+        expose :domain_whitelist
+        expose :domain_blacklist_enabled
+        expose :domain_blacklist
+        expose :user_oauth_applications
+        expose :after_sign_out_path
+        expose :container_registry_token_expire_delay
+        expose :repository_storage
+        expose :repository_storages
+        expose :koding_enabled
+        expose :koding_url
+        expose :plantuml_enabled
+        expose :plantuml_url
+        expose :terminal_max_session_time
+      end
+
       class Environment < ::API::Entities::EnvironmentBasic
         expose :project, using: Entities::Project
       end

spec/requests/api/settings_spec.rb

@@ -19,6 +19,9 @@ describe API::Settings, 'Settings', api: true  do
       expect(json_response['koding_url']).to be_nil
       expect(json_response['plantuml_enabled']).to be_falsey
       expect(json_response['plantuml_url']).to be_nil
+      expect(json_response['default_project_visibility']).to be_a String
+      expect(json_response['default_snippet_visibility']).to be_a String
+      expect(json_response['default_group_visibility']).to be_a String
     end
   end
 
@@ -38,6 +41,8 @@ describe API::Settings, 'Settings', api: true  do
           koding_url: 'http://koding.example.com',
           plantuml_enabled: true,
           plantuml_url: 'http://plantuml.example.com',
+          default_snippet_visibility: 'internal',
+          restricted_visibility_levels: ['public'],
           default_artifacts_expire_in: '2 days'
 
         expect(response).to have_http_status(200)
@@ -48,6 +53,8 @@ describe API::Settings, 'Settings', api: true  do
         expect(json_response['koding_url']).to eq('http://koding.example.com')
         expect(json_response['plantuml_enabled']).to be_truthy
         expect(json_response['plantuml_url']).to eq('http://plantuml.example.com')
+        expect(json_response['default_snippet_visibility']).to eq('internal')
+        expect(json_response['restricted_visibility_levels']).to eq(['public'])
         expect(json_response['default_artifacts_expire_in']).to eq('2 days')
       end
     end