Merge branch '27501-api-use-visibility-everywhere' into 'master'

API: Use `visibility` as string parameter everywhere

Closes #27501

See merge request !9337

app/models/application_setting.rb

@@ -179,6 +179,7 @@ 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'],
@@ -277,6 +278,22 @@ class ApplicationSetting < ActiveRecord::Base
     self.repository_storages = [value]
   end
 
+  def default_project_visibility=(level)
+    super(Gitlab::VisibilityLevel.level_value(level))
+  end
+
+  def default_snippet_visibility=(level)
+    super(Gitlab::VisibilityLevel.level_value(level))
+  end
+
+  def default_group_visibility=(level)
+    super(Gitlab::VisibilityLevel.level_value(level))
+  end
+
+  def restricted_visibility_levels=(levels)
+    super(levels.map { |level| Gitlab::VisibilityLevel.level_value(level) })
+  end
+
   # Choose one of the available repository storage options. Currently all have
   # equal weighting.
   def pick_repository_storage

app/models/group.rb

@@ -93,7 +93,7 @@ class Group < Namespace
   end
 
   def visibility_level_field
-    visibility_level
+    :visibility_level
   end
 
   def visibility_level_allowed_by_projects

app/models/project.rb

@@ -334,7 +334,7 @@ class Project < ActiveRecord::Base
     end
 
     def search_by_visibility(level)
-      where(visibility_level: Gitlab::VisibilityLevel.const_get(level.upcase))
+      where(visibility_level: Gitlab::VisibilityLevel.string_options[level])
     end
 
     def search_by_title(query)
@@ -1003,7 +1003,7 @@ class Project < ActiveRecord::Base
   end
 
   def visibility_level_field
-    visibility_level
+    :visibility_level
   end
 
   def archive!

app/models/snippet.rb

@@ -120,7 +120,7 @@ class Snippet < ActiveRecord::Base
   end
 
   def visibility_level_field
-    visibility_level
+    :visibility_level
   end
 
   def no_highlighting?

app/services/projects/create_service.rb

@@ -12,7 +12,7 @@ module Projects
       @project = Project.new(params)
 
       # Make sure that the user is allowed to use the specified visibility level
-      unless Gitlab::VisibilityLevel.allowed_for?(current_user, params[:visibility_level])
+      unless Gitlab::VisibilityLevel.allowed_for?(current_user, @project.visibility_level)
         deny_visibility_level(@project)
         return @project
       end

app/services/system_hooks_service.rb

@@ -84,7 +84,7 @@ class SystemHooksService
       project_id: model.id,
       owner_name: owner.name,
       owner_email: owner.respond_to?(:email) ? owner.email : "",
-      project_visibility: Project.visibility_levels.key(model.visibility_level_field).downcase
+      project_visibility: Project.visibility_levels.key(model.visibility_level_value).downcase
     }
   end
 
@@ -101,7 +101,7 @@ class SystemHooksService
       user_email:                   model.user.email,
       user_id:                      model.user.id,
       access_level:                 model.human_access,
-      project_visibility:           Project.visibility_levels.key(project.visibility_level_field).downcase
+      project_visibility:           Project.visibility_levels.key(project.visibility_level_value).downcase
     }
   end
 

changelogs/unreleased/27501-api-use-visibility-everywhere.yml

+---
+title: "API: Use `visibility` as string parameter everywhere"
+merge_request: 9337
+author:

doc/api/groups.md

@@ -27,7 +27,7 @@ GET /groups
     "name": "Foobar Group",
     "path": "foo-bar",
     "description": "An interesting group",
-    "visibility_level": 20,
+    "visibility": "public",
     "lfs_enabled": true,
     "avatar_url": "http://localhost:3000/uploads/group/avatar/1/foo.jpg",
     "web_url": "http://localhost:3000/groups/foo-bar",
@@ -72,9 +72,8 @@ Example response:
     "description": "foo",
     "default_branch": "master",
     "tag_list": [],
-    "public": false,
     "archived": false,
-    "visibility_level": 10,
+    "visibility": "internal",
     "ssh_url_to_repo": "git@gitlab.example.com/html5-boilerplate.git",
     "http_url_to_repo": "http://gitlab.example.com/h5bp/html5-boilerplate.git",
     "web_url": "http://gitlab.example.com/h5bp/html5-boilerplate",
@@ -134,7 +133,7 @@ Example response:
   "name": "Twitter",
   "path": "twitter",
   "description": "Aliquid qui quis dignissimos distinctio ut commodi voluptas est.",
-  "visibility_level": 20,
+  "visibility": "public",
   "avatar_url": null,
   "web_url": "https://gitlab.example.com/groups/twitter",
   "request_access_enabled": false,
@@ -147,9 +146,8 @@ Example response:
       "description": "Voluptas veniam qui et beatae voluptas doloremque explicabo facilis.",
       "default_branch": "master",
       "tag_list": [],
-      "public": true,
       "archived": false,
-      "visibility_level": 20,
+      "visibility": "public",
       "ssh_url_to_repo": "git@gitlab.example.com:twitter/typeahead-js.git",
       "http_url_to_repo": "https://gitlab.example.com/twitter/typeahead-js.git",
       "web_url": "https://gitlab.example.com/twitter/typeahead-js",
@@ -186,9 +184,8 @@ Example response:
       "description": "Aspernatur omnis repudiandae qui voluptatibus eaque.",
       "default_branch": "master",
       "tag_list": [],
-      "public": false,
       "archived": false,
-      "visibility_level": 10,
+      "visibility": "internal",
       "ssh_url_to_repo": "git@gitlab.example.com:twitter/flight.git",
       "http_url_to_repo": "https://gitlab.example.com/twitter/flight.git",
       "web_url": "https://gitlab.example.com/twitter/flight",
@@ -227,9 +224,8 @@ Example response:
       "description": "Velit eveniet provident fugiat saepe eligendi autem.",
       "default_branch": "master",
       "tag_list": [],
-      "public": false,
       "archived": false,
-      "visibility_level": 0,
+      "visibility": "private",
       "ssh_url_to_repo": "git@gitlab.example.com:h5bp/html5-boilerplate.git",
       "http_url_to_repo": "https://gitlab.example.com/h5bp/html5-boilerplate.git",
       "web_url": "https://gitlab.example.com/h5bp/html5-boilerplate",
@@ -288,7 +284,7 @@ Parameters:
 - `name` (required) - The name of the group
 - `path` (required) - The path of the group
 - `description` (optional) - The group's description
-- `visibility_level` (optional) - The group's visibility. 0 for private, 10 for internal, 20 for public.
+- `visibility` (optional) - The group's visibility. Can be `private`, `internal`, or `public`.
 - `lfs_enabled` (optional)      - Enable/disable Large File Storage (LFS) for the projects in this group
 - `request_access_enabled` (optional) - Allow users to request member access.
 - `parent_id` (optional) - The parent group id for creating nested group.
@@ -320,7 +316,7 @@ PUT /groups/:id
 | `name` | string | no | The name of the group |
 | `path` | string | no | The path of the group |
 | `description` | string | no | The description of the group |
-| `visibility_level` | integer | no | The visibility level of the group. 0 for private, 10 for internal, 20 for public. |
+| `visibility` | string | no | The visibility level of the group. Can be `private`, `internal`, or `public`. |
 | `lfs_enabled` (optional) | boolean | no | Enable/disable Large File Storage (LFS) for the projects in this group |
 | `request_access_enabled` | boolean | no | Allow users to request member access. |
 
@@ -337,7 +333,7 @@ Example response:
   "name": "Experimental",
   "path": "h5bp",
   "description": "foo",
-  "visibility_level": 10,
+  "visibility": "internal",
   "avatar_url": null,
   "web_url": "http://gitlab.example.com/groups/h5bp",
   "request_access_enabled": false,
@@ -352,7 +348,7 @@ Example response:
       "tag_list": [],
       "public": false,
       "archived": false,
-      "visibility_level": 10,
+      "visibility": "internal",
       "ssh_url_to_repo": "git@gitlab.example.com/html5-boilerplate.git",
       "http_url_to_repo": "http://gitlab.example.com/h5bp/html5-boilerplate.git",
       "web_url": "http://gitlab.example.com/h5bp/html5-boilerplate",

doc/api/project_snippets.md

@@ -3,15 +3,15 @@
 ### Snippet visibility level
 
 Snippets in GitLab can be either private, internal or public.
-You can set it with the `visibility_level` field in the snippet.
+You can set it with the `visibility` field in the snippet.
 
 Constants for snippet visibility levels are:
 
-| Visibility | visibility_level | Description |
-| ---------- | ---------------- | ----------- |
-| Private    | `0`  | The snippet is visible only the snippet creator |
-| Internal   | `10` | The snippet is visible for any logged in user |
-| Public     | `20` | The snippet can be accessed without any authentication |
+| visibility | Description |
+| ---------- | ----------- |
+| `private`  | The snippet is visible only the snippet creator |
+| `internal` | The snippet is visible for any logged in user |
+| `public`   | The snippet can be accessed without any authentication |
 
 ## List snippets
 
@@ -71,7 +71,7 @@ Parameters:
 - `title` (required) - The title of a snippet
 - `file_name` (required) - The name of a snippet file
 - `code` (required) - The content of a snippet
-- `visibility_level` (required) - The snippet's visibility
+- `visibility` (required) - The snippet's visibility
 
 ## Update snippet
 
@@ -88,7 +88,7 @@ Parameters:
 - `title` (optional) - The title of a snippet
 - `file_name` (optional) - The name of a snippet file
 - `code` (optional) - The content of a snippet
-- `visibility_level` (optional) - The snippet's visibility
+- `visibility` (optional) - The snippet's visibility
 
 ## Delete snippet
 

doc/api/projects.md

@@ -4,17 +4,17 @@
 ### Project visibility level
 
 Project in GitLab has be either private, internal or public.
-You can determine it by `visibility_level` field in project.
+You can determine it by `visibility` field in project.
 
 Constants for project visibility levels are next:
 
-* Private. `visibility_level` is `0`.
+* `private`:
   Project access must be granted explicitly for each user.
 
-* Internal. `visibility_level` is `10`.
+* `internal`:
   The project can be cloned by any logged in user.
 
-* Public. `visibility_level` is `20`.
+* `public`:
   The project can be cloned without any authentication.
 
 
@@ -45,8 +45,7 @@ Parameters:
     "id": 4,
     "description": null,
     "default_branch": "master",
-    "public": false,
-    "visibility_level": 0,
+    "visibility": "private",
     "ssh_url_to_repo": "git@example.com:diaspora/diaspora-client.git",
     "http_url_to_repo": "http://example.com/diaspora/diaspora-client.git",
     "web_url": "http://example.com/diaspora/diaspora-client",
@@ -96,8 +95,7 @@ Parameters:
     "id": 6,
     "description": null,
     "default_branch": "master",
-    "public": false,
-    "visibility_level": 0,
+    "visibility": "private",
     "ssh_url_to_repo": "git@example.com:brightbox/puppet.git",
     "http_url_to_repo": "http://example.com/brightbox/puppet.git",
     "web_url": "http://example.com/brightbox/puppet",
@@ -177,8 +175,7 @@ Parameters:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 0,
+  "visibility": "private",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -446,7 +443,7 @@ Parameters:
 | `snippets_enabled` | boolean | no | Enable snippets for this project |
 | `container_registry_enabled` | boolean | no | Enable container registry for this project |
 | `shared_runners_enabled` | boolean | no | Enable shared runners for this project |
-| `visibility_level` | integer | no | See [project visibility level](#project-visibility-level) |
+| `visibility` | String | no | See [project visibility level](#project-visibility-level) |
 | `import_url` | string | no | URL to import repository from |
 | `public_builds` | boolean | no | If `true`, builds can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful builds |
@@ -479,7 +476,7 @@ Parameters:
 | `snippets_enabled` | boolean | no | Enable snippets for this project |
 | `container_registry_enabled` | boolean | no | Enable container registry for this project |
 | `shared_runners_enabled` | boolean | no | Enable shared runners for this project |
-| `visibility_level` | integer | no | See [project visibility level](#project-visibility-level) |
+| `visibility` | string | no | See [project visibility level](#project-visibility-level) |
 | `import_url` | string | no | URL to import repository from |
 | `public_builds` | boolean | no | If `true`, builds can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful builds |
@@ -511,7 +508,7 @@ Parameters:
 | `snippets_enabled` | boolean | no | Enable snippets for this project |
 | `container_registry_enabled` | boolean | no | Enable container registry for this project |
 | `shared_runners_enabled` | boolean | no | Enable shared runners for this project |
-| `visibility_level` | integer | no | See [project visibility level](#project-visibility-level) |
+| `visibility` | string | no | See [project visibility level](#project-visibility-level) |
 | `import_url` | string | no | URL to import repository from |
 | `public_builds` | boolean | no | If `true`, builds can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful builds |
@@ -559,8 +556,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 10,
+  "visibility": "internal",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -625,8 +621,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 10,
+  "visibility": "internal",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -692,8 +687,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 0,
+  "visibility": "private",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -775,8 +769,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 0,
+  "visibility": "private",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",

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,
@@ -66,11 +67,12 @@ 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. |
@@ -88,7 +90,7 @@ 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:
@@ -108,8 +110,9 @@ 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" : [],

doc/api/snippets.md

@@ -5,15 +5,15 @@
 ### Snippet visibility level
 
 Snippets in GitLab can be either private, internal, or public.
-You can set it with the `visibility_level` field in the snippet.
+You can set it with the `visibility` field in the snippet.
 
 Constants for snippet visibility levels are:
 
-| Visibility | Visibility level | Description |
-| ---------- | ---------------- | ----------- |
-| Private    | `0`  | The snippet is visible only to the snippet creator |
-| Internal   | `10` | The snippet is visible for any logged in user |
-| Public     | `20` | The snippet can be accessed without any authentication |
+| Visibility | Description |
+| ---------- | ----------- |
+| `private`  | The snippet is visible only to the snippet creator |
+| `internal` | The snippet is visible for any logged in user |
+| `public`   | The snippet can be accessed without any authentication |
 
 ## List snippets
 
@@ -78,11 +78,11 @@ Parameters:
 | `title`            | String  | yes      | The title of a snippet     |
 | `file_name`        | String  | yes      | The name of a snippet file |
 | `content`          | String  | yes      | The content of a snippet   |
-| `visibility_level` | Integer | yes      | The snippet's visibility   |
+| `visibility`       | String  | yes      | The snippet's visibility   |
 
 
 ``` bash
-curl --request POST --data '{"title": "This is a snippet", "content": "Hello world", "file_name": "test.txt", "visibility_level": 10 }' --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/snippets
+curl --request POST --data '{"title": "This is a snippet", "content": "Hello world", "file_name": "test.txt", "visibility": "internal" }' --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/snippets
 ```
 
 Example response:
@@ -123,7 +123,7 @@ Parameters:
 | `title`            | String  | no       | The title of a snippet     |
 | `file_name`        | String  | no       | The name of a snippet file |
 | `content`          | String  | no       | The content of a snippet   |
-| `visibility_level` | Integer | no       | The snippet's visibility   |
+| `visibility`       | String  | no       | The snippet's visibility   |
 
 
 ``` bash
@@ -154,7 +154,7 @@ Example response:
 
 ## Delete snippet
 
-Deletes an existing snippet. 
+Deletes an existing snippet.
 
 ```
 DELETE /snippets/:id
@@ -229,4 +229,3 @@ Example response:
     }
 ]
 ```
-

doc/api/v3_to_v4.md

@@ -47,6 +47,7 @@ changes are in V4:
   - PUT `projects/:id`
 - Renamed `branch_name` to `branch` on DELETE `id/repository/branches/:branch` response [!8936](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8936)
 - Remove `public` param from create and edit actions of projects [!8736](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8736)
+- Use `visibility` as string parameter everywhere [!9337](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9337)
 - Notes do not return deprecated field `upvote` and `downvote` [!9384](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9384)
 - Return HTTP status code `400` for all validation errors when creating or updating a member instead of sometimes `422` error. [!9523](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9523)
 - Remove `GET /groups/owned`. Use `GET /groups?owned=true` instead [!9505](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9505)

lib/api/api.rb

@@ -26,6 +26,8 @@ module API
       mount ::API::V3::Repositories
       mount ::API::V3::Runners
       mount ::API::V3::Services
+      mount ::API::V3::Settings
+      mount ::API::V3::Snippets
       mount ::API::V3::Subscriptions
       mount ::API::V3::SystemHooks
       mount ::API::V3::Tags

lib/api/entities.rb

@@ -69,9 +69,8 @@ module API
 
     class Project < Grape::Entity
       expose :id, :description, :default_branch, :tag_list
-      expose :public?, as: :public
       expose :archived?, as: :archived
-      expose :visibility_level, :ssh_url_to_repo, :http_url_to_repo, :web_url
+      expose :visibility, :ssh_url_to_repo, :http_url_to_repo, :web_url
       expose :owner, using: Entities::UserBasic, unless: ->(project, options) { project.group }
       expose :name, :name_with_namespace
       expose :path, :path_with_namespace
@@ -132,7 +131,7 @@ module API
     end
 
     class Group < Grape::Entity
-      expose :id, :name, :path, :description, :visibility_level
+      expose :id, :name, :path, :description, :visibility
       expose :lfs_enabled?, as: :lfs_enabled
       expose :avatar_url
       expose :web_url
@@ -552,12 +551,14 @@ 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/groups.rb

@@ -7,7 +7,7 @@ module API
     helpers do
       params :optional_params do
         optional :description, type: String, desc: 'The description of the group'
-        optional :visibility_level, type: Integer, desc: 'The visibility level of the group'
+        optional :visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The visibility of the group'
         optional :lfs_enabled, type: Boolean, desc: 'Enable/disable LFS for the projects in this group'
         optional :request_access_enabled, type: Boolean, desc: 'Allow users to request member access'
       end
@@ -92,7 +92,7 @@ module API
         optional :name, type: String, desc: 'The name of the group'
         optional :path, type: String, desc: 'The path of the group'
         use :optional_params
-        at_least_one_of :name, :path, :description, :visibility_level,
+        at_least_one_of :name, :path, :description, :visibility,
                         :lfs_enabled, :request_access_enabled
       end
       put ':id' do
@@ -126,7 +126,7 @@ module API
       end
       params do
         optional :archived, type: Boolean, default: false, desc: 'Limit by archived status'
-        optional :visibility, type: String, values: %w[public internal private],
+        optional :visibility, type: String, values: Gitlab::VisibilityLevel.string_values,
                               desc: 'Limit by visibility'
         optional :search, type: String, desc: 'Return list of authorized projects matching the search criteria'
         optional :order_by, type: String, values: %w[id name path created_at updated_at last_activity_at],

lib/api/project_snippets.rb

@@ -50,11 +50,9 @@ module API
         requires :title, type: String, desc: 'The title of the snippet'
         requires :file_name, type: String, desc: 'The file name of the snippet'
         requires :code, type: String, desc: 'The content of the snippet'
-        requires :visibility_level, type: Integer,
-                                    values: [Gitlab::VisibilityLevel::PRIVATE,
-                                             Gitlab::VisibilityLevel::INTERNAL,
-                                             Gitlab::VisibilityLevel::PUBLIC],
-                                    desc: 'The visibility level of the snippet'
+        requires :visibility, type: String,
+                              values: Gitlab::VisibilityLevel.string_values,
+                              desc: 'The visibility of the snippet'
       end
       post ":id/snippets" do
         authorize! :create_project_snippet, user_project
@@ -80,11 +78,9 @@ module API
         optional :title, type: String, desc: 'The title of the snippet'
         optional :file_name, type: String, desc: 'The file name of the snippet'
         optional :code, type: String, desc: 'The content of the snippet'
-        optional :visibility_level, type: Integer,
-                                    values: [Gitlab::VisibilityLevel::PRIVATE,
-                                             Gitlab::VisibilityLevel::INTERNAL,
-                                             Gitlab::VisibilityLevel::PUBLIC],
-                                    desc: 'The visibility level of the snippet'
+        optional :visibility, type: String,
+                              values: Gitlab::VisibilityLevel.string_values,
+                              desc: 'The visibility of the snippet'
         at_least_one_of :title, :file_name, :code, :visibility_level
       end
       put ":id/snippets/:snippet_id" do

lib/api/projects.rb

@@ -16,11 +16,7 @@ module API
         optional :shared_runners_enabled, type: Boolean, desc: 'Flag indication if shared runners are enabled for that project'
         optional :container_registry_enabled, type: Boolean, desc: 'Flag indication if the container registry is enabled for that project'
         optional :lfs_enabled, type: Boolean, desc: 'Flag indication if Git LFS is enabled for that project'
-        optional :visibility_level, type: Integer, values: [
-          Gitlab::VisibilityLevel::PRIVATE,
-          Gitlab::VisibilityLevel::INTERNAL,
-          Gitlab::VisibilityLevel::PUBLIC
-        ], desc: 'Create a public project. The same as visibility_level = 20.'
+        optional :visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The visibility of the project.'
         optional :public_builds, type: Boolean, desc: 'Perform public builds'
         optional :request_access_enabled, type: Boolean, desc: 'Allow users to request member access'
         optional :only_allow_merge_if_pipeline_succeeds, type: Boolean, desc: 'Only allow to merge if builds succeed'
@@ -48,7 +44,7 @@ module API
 
         params :filter_params do
           optional :archived, type: Boolean, default: false, desc: 'Limit by archived status'
-          optional :visibility, type: String, values: %w[public internal private],
+          optional :visibility, type: String, values: Gitlab::VisibilityLevel.string_values,
                                 desc: 'Limit by visibility'
           optional :search, type: String, desc: 'Return list of authorized projects matching the search criteria'
           optional :owned, type: Boolean, default: false, desc: 'Limit by owned by authenticated user'
@@ -208,7 +204,7 @@ module API
         at_least_one_of :name, :description, :issues_enabled, :merge_requests_enabled,
                         :wiki_enabled, :builds_enabled, :snippets_enabled,
                         :shared_runners_enabled, :container_registry_enabled,
-                        :lfs_enabled, :visibility_level, :public_builds,
+                        :lfs_enabled, :visibility, :public_builds,
                         :request_access_enabled, :only_allow_merge_if_pipeline_succeeds,
                         :only_allow_merge_if_all_discussions_are_resolved, :path,
                         :default_branch
@@ -217,7 +213,7 @@ module API
         authorize_admin_project
         attrs = declared_params(include_missing: false)
         authorize! :rename_project, user_project if attrs[:name].present?
-        authorize! :change_visibility_level, user_project if attrs[:visibility_level].present?
+        authorize! :change_visibility_level, user_project if attrs[:visibility].present?
 
         result = ::Projects::UpdateService.new(user_project, current_user, attrs).execute
 

lib/api/settings.rb

@@ -21,9 +21,9 @@ 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'
@@ -128,7 +128,9 @@ module API
                       :housekeeping_enabled, :terminal_max_session_time
     end
     put "application/settings" do
-      if current_settings.update_attributes(declared_params(include_missing: false))
+      attrs = 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/snippets.rb

@@ -58,10 +58,10 @@ module API
         requires :title, type: String, desc: 'The title of a snippet'
         requires :file_name, type: String, desc: 'The name of a snippet file'
         requires :content, type: String, desc: 'The content of a snippet'
-        optional :visibility_level, type: Integer,
-                                    values: Gitlab::VisibilityLevel.values,
-                                    default: Gitlab::VisibilityLevel::INTERNAL,
-                                    desc: 'The visibility level of the snippet'
+        optional :visibility, type: String,
+                              values: Gitlab::VisibilityLevel.string_values,
+                              default: 'internal',
+                              desc: 'The visibility of the snippet'
       end
       post do
         attrs = declared_params(include_missing: false).merge(request: request, api: true)
@@ -85,10 +85,10 @@ module API
         optional :title, type: String, desc: 'The title of a snippet'
         optional :file_name, type: String, desc: 'The name of a snippet file'
         optional :content, type: String, desc: 'The content of a snippet'
-        optional :visibility_level, type: Integer,
-                                    values: Gitlab::VisibilityLevel.values,
-                                    desc: 'The visibility level of the snippet'
-        at_least_one_of :title, :file_name, :content, :visibility_level
+        optional :visibility, type: String,
+                              values: Gitlab::VisibilityLevel.string_values,
+                              desc: 'The visibility of the snippet'
+        at_least_one_of :title, :file_name, :content, :visibility
       end
       put ':id' do
         snippet = snippets_for_current_user.find_by(id: params.delete(:id))

lib/api/v3/entities.rb

@@ -125,6 +125,67 @@ module API
           Gitlab::UrlBuilder.build(merge_request)
         end
       end
+
+      class Group < Grape::Entity
+        expose :id, :name, :path, :description, :visibility_level
+        expose :lfs_enabled?, as: :lfs_enabled
+        expose :avatar_url
+        expose :web_url
+        expose :request_access_enabled
+        expose :full_name, :full_path
+        expose :parent_id
+
+        expose :statistics, if: :statistics do
+          with_options format_with: -> (value) { value.to_i } do
+            expose :storage_size
+            expose :repository_size
+            expose :lfs_objects_size
+            expose :build_artifacts_size
+          end
+        end
+      end
+
+      class GroupDetail < Group
+        expose :projects, using: Entities::Project
+        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
     end
   end
 end

lib/api/v3/environments.rb

 module API
   module V3
     class Environments < Grape::API
+      include ::API::Helpers::CustomValidators
       include PaginationParams
 
       before { authenticate! }
@@ -9,9 +10,66 @@ module API
         requires :id, type: String, desc: 'The project ID'
       end
       resource :projects do
+        desc 'Get all environments of the project' do
+          detail 'This feature was introduced in GitLab 8.11.'
+          success Entities::Environment
+        end
+        params do
+          use :pagination
+        end
+        get ':id/environments' do
+          authorize! :read_environment, user_project
+
+          present paginate(user_project.environments), with: Entities::Environment
+        end
+
+        desc 'Creates a new environment' do
+          detail 'This feature was introduced in GitLab 8.11.'
+          success Entities::Environment
+        end
+        params do
+          requires :name,           type: String,   desc: 'The name of the environment to be created'
+          optional :external_url,   type: String,   desc: 'URL on which this deployment is viewable'
+          optional :slug, absence: { message: "is automatically generated and cannot be changed" }
+        end
+        post ':id/environments' do
+          authorize! :create_environment, user_project
+
+          environment = user_project.environments.create(declared_params)
+
+          if environment.persisted?
+            present environment, with: Entities::Environment
+          else
+            render_validation_error!(environment)
+          end
+        end
+
+        desc 'Updates an existing environment' do
+          detail 'This feature was introduced in GitLab 8.11.'
+          success Entities::Environment
+        end
+        params do
+          requires :environment_id, type: Integer,  desc: 'The environment ID'
+          optional :name,           type: String,   desc: 'The new environment name'
+          optional :external_url,   type: String,   desc: 'The new URL on which this deployment is viewable'
+          optional :slug, absence: { message: "is automatically generated and cannot be changed" }
+        end
+        put ':id/environments/:environment_id' do
+          authorize! :update_environment, user_project
+
+          environment = user_project.environments.find(params[:environment_id])
+
+          update_params = declared_params(include_missing: false).extract!(:name, :external_url)
+          if environment.update(update_params)
+            present environment, with: Entities::Environment
+          else
+            render_validation_error!(environment)
+          end
+        end
+
         desc 'Deletes an existing environment' do
           detail 'This feature was introduced in GitLab 8.11.'
-          success ::API::Entities::Environment
+          success Entities::Environment
         end
         params do
           requires :environment_id, type: Integer,  desc: 'The environment ID'
@@ -21,7 +79,7 @@ module API
 
           environment = user_project.environments.find(params[:environment_id])
 
-          present environment.destroy, with: ::API::Entities::Environment
+          present environment.destroy, with: Entities::Environment
         end
       end
     end

lib/api/v3/groups.rb

@@ -6,13 +6,20 @@ module API
       before { authenticate! }
 
       helpers do
+        params :optional_params do
+          optional :description, type: String, desc: 'The description of the group'
+          optional :visibility_level, type: Integer, desc: 'The visibility level of the group'
+          optional :lfs_enabled, type: Boolean, desc: 'Enable/disable LFS for the projects in this group'
+          optional :request_access_enabled, type: Boolean, desc: 'Allow users to request member access'
+        end
+
         params :statistics_params do
           optional :statistics, type: Boolean, default: false, desc: 'Include project statistics'
         end
 
         def present_groups(groups, options = {})
           options = options.reverse_merge(
-            with: ::API::Entities::Group,
+            with: Entities::Group,
             current_user: current_user,
           )
 
@@ -22,8 +29,36 @@ module API
       end
 
       resource :groups do
+        desc 'Get a groups list' do
+          success Entities::Group
+        end
+        params do
+          use :statistics_params
+          optional :skip_groups, type: Array[Integer], desc: 'Array of group ids to exclude from list'
+          optional :all_available, type: Boolean, desc: 'Show all group that you have access to'
+          optional :search, type: String, desc: 'Search for a specific group'
+          optional :order_by, type: String, values: %w[name path], default: 'name', desc: 'Order by name or path'
+          optional :sort, type: String, values: %w[asc desc], default: 'asc', desc: 'Sort by asc (ascending) or desc (descending)'
+          use :pagination
+        end
+        get do
+          groups = if current_user.admin
+                     Group.all
+                   elsif params[:all_available]
+                     GroupsFinder.new.execute(current_user)
+                   else
+                     current_user.groups
+                   end
+
+          groups = groups.search(params[:search]) if params[:search].present?
+          groups = groups.where.not(id: params[:skip_groups]) if params[:skip_groups].present?
+          groups = groups.reorder(params[:order_by] => params[:sort])
+
+          present_groups groups, statistics: params[:statistics] && current_user.is_admin?
+        end
+
         desc 'Get list of owned groups for authenticated user' do
-          success ::API::Entities::Group
+          success Entities::Group
         end
         params do
           use :pagination
@@ -32,6 +67,114 @@ module API
         get '/owned' do
           present_groups current_user.owned_groups, statistics: params[:statistics]
         end
+
+        desc 'Create a group. Available only for users who can create groups.' do
+          success Entities::Group
+        end
+        params do
+          requires :name, type: String, desc: 'The name of the group'
+          requires :path, type: String, desc: 'The path of the group'
+          optional :parent_id, type: Integer, desc: 'The parent group id for creating nested group'
+          use :optional_params
+        end
+        post do
+          authorize! :create_group
+
+          group = ::Groups::CreateService.new(current_user, declared_params(include_missing: false)).execute
+
+          if group.persisted?
+            present group, with: Entities::Group, current_user: current_user
+          else
+            render_api_error!("Failed to save group #{group.errors.messages}", 400)
+          end
+        end
+      end
+
+      params do
+        requires :id, type: String, desc: 'The ID of a group'
+      end
+      resource :groups do
+        desc 'Update a group. Available only for users who can administrate groups.' do
+          success Entities::Group
+        end
+        params do
+          optional :name, type: String, desc: 'The name of the group'
+          optional :path, type: String, desc: 'The path of the group'
+          use :optional_params
+          at_least_one_of :name, :path, :description, :visibility_level,
+                          :lfs_enabled, :request_access_enabled
+        end
+        put ':id' do
+          group = find_group!(params[:id])
+          authorize! :admin_group, group
+
+          if ::Groups::UpdateService.new(group, current_user, declared_params(include_missing: false)).execute
+            present group, with: Entities::GroupDetail, current_user: current_user
+          else
+            render_validation_error!(group)
+          end
+        end
+
+        desc 'Get a single group, with containing projects.' do
+          success Entities::GroupDetail
+        end
+        get ":id" do
+          group = find_group!(params[:id])
+          present group, with: Entities::GroupDetail, current_user: current_user
+        end
+
+        desc 'Remove a group.'
+        delete ":id" do
+          group = find_group!(params[:id])
+          authorize! :admin_group, group
+          present ::Groups::DestroyService.new(group, current_user).execute, with: Entities::GroupDetail, current_user: current_user
+        end
+
+        desc 'Get a list of projects in this group.' do
+          success Entities::Project
+        end
+        params do
+          optional :archived, type: Boolean, default: false, desc: 'Limit by archived status'
+          optional :visibility, type: String, values: %w[public internal private],
+                                desc: 'Limit by visibility'
+          optional :search, type: String, desc: 'Return list of authorized projects matching the search criteria'
+          optional :order_by, type: String, values: %w[id name path created_at updated_at last_activity_at],
+                              default: 'created_at', desc: 'Return projects ordered by field'
+          optional :sort, type: String, values: %w[asc desc], default: 'desc',
+                          desc: 'Return projects sorted in ascending and descending order'
+          optional :simple, type: Boolean, default: false,
+                            desc: 'Return only the ID, URL, name, and path of each project'
+          optional :owned, type: Boolean, default: false, desc: 'Limit by owned by authenticated user'
+          optional :starred, type: Boolean, default: false, desc: 'Limit by starred status'
+
+          use :pagination
+        end
+        get ":id/projects" do
+          group = find_group!(params[:id])
+          projects = GroupProjectsFinder.new(group).execute(current_user)
+          projects = filter_projects(projects)
+          entity = params[:simple] ? ::API::Entities::BasicProjectDetails : Entities::Project
+          present paginate(projects), with: entity, current_user: current_user
+        end
+
+        desc 'Transfer a project to the group namespace. Available only for admin.' do
+          success Entities::GroupDetail
+        end
+        params do
+          requires :project_id, type: String, desc: 'The ID or path of the project'
+        end
+        post ":id/projects/:project_id" do
+          authenticated_as_admin!
+          group = find_group!(params[:id])
+          project = find_project!(params[:project_id])
+          result = ::Projects::TransferService.new(project, current_user).execute(group)
+
+          if result
+            present group, with: Entities::GroupDetail, current_user: current_user
+          else
+            render_api_error!("Failed to transfer project #{project.errors.messages}", 400)
+          end
+        end
       end
     end
   end

lib/api/v3/settings.rb

+module API
+  module V3
+    class Settings < Grape::API
+      before { authenticated_as_admin! }
+
+      helpers do
+        def current_settings
+          @current_setting ||=
+            (ApplicationSetting.current || ApplicationSetting.create_from_defaults)
+        end
+      end
+
+      desc 'Get the current application settings' do
+        success Entities::ApplicationSetting
+      end
+      get "application/settings" do
+        present current_settings, with: Entities::ApplicationSetting
+      end
+
+      desc 'Modify application settings' do
+        success Entities::ApplicationSetting
+      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 :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'
+        optional :disabled_oauth_sign_in_sources, type: Array[String], desc: 'Disable certain OAuth sign-in sources'
+        optional :enabled_git_access_protocol, type: String, values: %w[ssh http nil], desc: 'Allow only the selected protocols to be used for Git access.'
+        optional :gravatar_enabled, type: Boolean, desc: 'Flag indicating if the Gravatar service is enabled'
+        optional :default_projects_limit, type: Integer, desc: 'The maximum number of personal projects'
+        optional :max_attachment_size, type: Integer, desc: 'Maximum attachment size in MB'
+        optional :session_expire_delay, type: Integer, desc: 'Session duration in minutes. GitLab restart is required to apply changes.'
+        optional :user_oauth_applications, type: Boolean, desc: 'Allow users to register any application to use GitLab as an OAuth provider'
+        optional :user_default_external, type: Boolean, desc: 'Newly registered users will by default be external'
+        optional :signup_enabled, type: Boolean, desc: 'Flag indicating if sign up is enabled'
+        optional :send_user_confirmation_email, type: Boolean, desc: 'Send confirmation email on sign-up'
+        optional :domain_whitelist, type: String, desc: 'ONLY users with e-mail addresses that match these domain(s) will be able to sign-up. Wildcards allowed. Use separate lines for multiple entries. Ex: domain.com, *.domain.com'
+        optional :domain_blacklist_enabled, type: Boolean, desc: 'Enable domain blacklist for sign ups'
+        given domain_blacklist_enabled: ->(val) { val } do
+          requires :domain_blacklist, type: String, desc: 'Users with e-mail addresses that match these domain(s) will NOT be able to sign-up. Wildcards allowed. Use separate lines for multiple entries. Ex: domain.com, *.domain.com'
+        end
+        optional :after_sign_up_text, type: String, desc: 'Text shown after sign up'
+        optional :signin_enabled, type: Boolean, desc: 'Flag indicating if sign in is enabled'
+        optional :require_two_factor_authentication, type: Boolean, desc: 'Require all users to setup Two-factor authentication'
+        given require_two_factor_authentication: ->(val) { val } do
+          requires :two_factor_grace_period, type: Integer, desc: 'Amount of time (in hours) that users are allowed to skip forced configuration of two-factor authentication'
+        end
+        optional :home_page_url, type: String, desc: 'We will redirect non-logged in users to this page'
+        optional :after_sign_out_path, type: String, desc: 'We will redirect users to this page after they sign out'
+        optional :sign_in_text, type: String, desc: 'The sign in text of the GitLab application'
+        optional :help_page_text, type: String, desc: 'Custom text displayed on the help page'
+        optional :shared_runners_enabled, type: Boolean, desc: 'Enable shared runners for new projects'
+        given shared_runners_enabled: ->(val) { val } do
+          requires :shared_runners_text, type: String, desc: 'Shared runners text '
+        end
+        optional :max_artifacts_size, type: Integer, desc: "Set the maximum file size each build's artifacts can have"
+        optional :max_pages_size, type: Integer, desc: 'Maximum size of pages in MB'
+        optional :container_registry_token_expire_delay, type: Integer, desc: 'Authorization token duration (minutes)'
+        optional :metrics_enabled, type: Boolean, desc: 'Enable the InfluxDB metrics'
+        given metrics_enabled: ->(val) { val } do
+          requires :metrics_host, type: String, desc: 'The InfluxDB host'
+          requires :metrics_port, type: Integer, desc: 'The UDP port to use for connecting to InfluxDB'
+          requires :metrics_pool_size, type: Integer, desc: 'The amount of InfluxDB connections to open'
+          requires :metrics_timeout, type: Integer, desc: 'The amount of seconds after which an InfluxDB connection will time out'
+          requires :metrics_method_call_threshold, type: Integer, desc: 'A method call is only tracked when it takes longer to complete than the given amount of milliseconds.'
+          requires :metrics_sample_interval, type: Integer, desc: 'The sampling interval in seconds'
+          requires :metrics_packet_size, type: Integer, desc: 'The amount of points to store in a single UDP packet'
+        end
+        optional :sidekiq_throttling_enabled, type: Boolean, desc: 'Enable Sidekiq Job Throttling'
+        given sidekiq_throttling_enabled: ->(val) { val } do
+          requires :sidekiq_throttling_queus, type: Array[String], desc: 'Choose which queues you wish to throttle'
+          requires :sidekiq_throttling_factor, type: Float, desc: 'The factor by which the queues should be throttled. A value between 0.0 and 1.0, exclusive.'
+        end
+        optional :recaptcha_enabled, type: Boolean, desc: 'Helps prevent bots from creating accounts'
+        given recaptcha_enabled: ->(val) { val } do
+          requires :recaptcha_site_key, type: String, desc: 'Generate site key at http://www.google.com/recaptcha'
+          requires :recaptcha_private_key, type: String, desc: 'Generate private key at http://www.google.com/recaptcha'
+        end
+        optional :akismet_enabled, type: Boolean, desc: 'Helps prevent bots from creating issues'
+        given akismet_enabled: ->(val) { val } do
+          requires :akismet_api_key, type: String, desc: 'Generate API key at http://www.akismet.com'
+        end
+        optional :admin_notification_email, type: String, desc: 'Abuse reports will be sent to this address if it is set. Abuse reports are always available in the admin area.'
+        optional :sentry_enabled, type: Boolean, desc: 'Sentry is an error reporting and logging tool which is currently not shipped with GitLab, get it here: https://getsentry.com'
+        given sentry_enabled: ->(val) { val } do
+          requires :sentry_dsn, type: String, desc: 'Sentry Data Source Name'
+        end
+        optional :repository_storage, type: String, desc: 'Storage paths for new projects'
+        optional :repository_checks_enabled, type: Boolean, desc: "GitLab will periodically run 'git fsck' in all project and wiki repositories to look for silent disk corruption issues."
+        optional :koding_enabled, type: Boolean, desc: 'Enable Koding'
+        given koding_enabled: ->(val) { val } do
+          requires :koding_url, type: String, desc: 'The Koding team URL'
+        end
+        optional :plantuml_enabled, type: Boolean, desc: 'Enable PlantUML'
+        given plantuml_enabled: ->(val) { val } do
+          requires :plantuml_url, type: String, desc: 'The PlantUML server URL'
+        end
+        optional :version_check_enabled, type: Boolean, desc: 'Let GitLab inform you when an update is available.'
+        optional :email_author_in_body, type: Boolean, desc: 'Some email servers do not support overriding the email sender name. Enable this option to include the name of the author of the issue, merge request or comment in the email body instead.'
+        optional :html_emails_enabled, type: Boolean, desc: 'By default GitLab sends emails in HTML and plain text formats so mail clients can choose what format to use. Disable this option if you only want to send emails in plain text format.'
+        optional :housekeeping_enabled, type: Boolean, desc: 'Enable automatic repository housekeeping (git repack, git gc)'
+        given housekeeping_enabled: ->(val) { val } do
+          requires :housekeeping_bitmaps_enabled, type: Boolean, desc: "Creating pack file bitmaps makes housekeeping take a little longer but bitmaps should accelerate 'git clone' performance."
+          requires :housekeeping_incremental_repack_period, type: Integer, desc: "Number of Git pushes after which an incremental 'git repack' is run."
+          requires :housekeeping_full_repack_period, type: Integer, desc: "Number of Git pushes after which a full 'git repack' is run."
+          requires :housekeeping_gc_period, type: Integer, desc: "Number of Git pushes after which 'git gc' is run."
+        end
+        optional :terminal_max_session_time, type: Integer, desc: 'Maximum time for web terminal websocket connection (in seconds). Set to 0 for unlimited time.'
+        at_least_one_of :default_branch_protection, :default_project_visibility, :default_snippet_visibility,
+                        :default_group_visibility, :restricted_visibility_levels, :import_sources,
+                        :enabled_git_access_protocol, :gravatar_enabled, :default_projects_limit,
+                        :max_attachment_size, :session_expire_delay, :disabled_oauth_sign_in_sources,
+                        :user_oauth_applications, :user_default_external, :signup_enabled,
+                        :send_user_confirmation_email, :domain_whitelist, :domain_blacklist_enabled,
+                        :after_sign_up_text, :signin_enabled, :require_two_factor_authentication,
+                        :home_page_url, :after_sign_out_path, :sign_in_text, :help_page_text,
+                        :shared_runners_enabled, :max_artifacts_size, :max_pages_size, :container_registry_token_expire_delay,
+                        :metrics_enabled, :sidekiq_throttling_enabled, :recaptcha_enabled,
+                        :akismet_enabled, :admin_notification_email, :sentry_enabled,
+                        :repository_storage, :repository_checks_enabled, :koding_enabled, :plantuml_enabled,
+                        :version_check_enabled, :email_author_in_body, :html_emails_enabled,
+                        :housekeeping_enabled, :terminal_max_session_time
+      end
+      put "application/settings" do
+        if current_settings.update_attributes(declared_params(include_missing: false))
+          present current_settings, with: Entities::ApplicationSetting
+        else
+          render_validation_error!(current_settings)
+        end
+      end
+    end
+  end
+end

lib/api/v3/snippets.rb

+module API
+  module V3
+    class Snippets < Grape::API
+      include PaginationParams
+
+      before { authenticate! }
+
+      resource :snippets do
+        helpers do
+          def snippets_for_current_user
+            SnippetsFinder.new.execute(current_user, filter: :by_user, user: current_user)
+          end
+
+          def public_snippets
+            SnippetsFinder.new.execute(current_user, filter: :public)
+          end
+        end
+
+        desc 'Get a snippets list for authenticated user' do
+          detail 'This feature was introduced in GitLab 8.15.'
+          success ::API::Entities::PersonalSnippet
+        end
+        params do
+          use :pagination
+        end
+        get do
+          present paginate(snippets_for_current_user), with: ::API::Entities::PersonalSnippet
+        end
+
+        desc 'List all public snippets current_user has access to' do
+          detail 'This feature was introduced in GitLab 8.15.'
+          success ::API::Entities::PersonalSnippet
+        end
+        params do
+          use :pagination
+        end
+        get 'public' do
+          present paginate(public_snippets), with: ::API::Entities::PersonalSnippet
+        end
+
+        desc 'Get a single snippet' do
+          detail 'This feature was introduced in GitLab 8.15.'
+          success ::API::Entities::PersonalSnippet
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of a snippet'
+        end
+        get ':id' do
+          snippet = snippets_for_current_user.find(params[:id])
+          present snippet, with: ::API::Entities::PersonalSnippet
+        end
+
+        desc 'Create new snippet' do
+          detail 'This feature was introduced in GitLab 8.15.'
+          success ::API::Entities::PersonalSnippet
+        end
+        params do
+          requires :title, type: String, desc: 'The title of a snippet'
+          requires :file_name, type: String, desc: 'The name of a snippet file'
+          requires :content, type: String, desc: 'The content of a snippet'
+          optional :visibility_level, type: Integer,
+                                      values: Gitlab::VisibilityLevel.values,
+                                      default: Gitlab::VisibilityLevel::INTERNAL,
+                                      desc: 'The visibility level of the snippet'
+        end
+        post do
+          attrs = declared_params(include_missing: false).merge(request: request, api: true)
+          snippet = CreateSnippetService.new(nil, current_user, attrs).execute
+
+          if snippet.persisted?
+            present snippet, with: ::API::Entities::PersonalSnippet
+          else
+            render_validation_error!(snippet)
+          end
+        end
+
+        desc 'Update an existing snippet' do
+          detail 'This feature was introduced in GitLab 8.15.'
+          success ::API::Entities::PersonalSnippet
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of a snippet'
+          optional :title, type: String, desc: 'The title of a snippet'
+          optional :file_name, type: String, desc: 'The name of a snippet file'
+          optional :content, type: String, desc: 'The content of a snippet'
+          optional :visibility_level, type: Integer,
+                                      values: Gitlab::VisibilityLevel.values,
+                                      desc: 'The visibility level of the snippet'
+          at_least_one_of :title, :file_name, :content, :visibility_level
+        end
+        put ':id' do
+          snippet = snippets_for_current_user.find_by(id: params.delete(:id))
+          return not_found!('Snippet') unless snippet
+          authorize! :update_personal_snippet, snippet
+
+          attrs = declared_params(include_missing: false)
+
+          UpdateSnippetService.new(nil, current_user, snippet, attrs).execute
+          if snippet.persisted?
+            present snippet, with: ::API::Entities::PersonalSnippet
+          else
+            render_validation_error!(snippet)
+          end
+        end
+
+        desc 'Remove snippet' do
+          detail 'This feature was introduced in GitLab 8.15.'
+          success ::API::Entities::PersonalSnippet
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of a snippet'
+        end
+        delete ':id' do
+          snippet = snippets_for_current_user.find_by(id: params.delete(:id))
+          return not_found!('Snippet') unless snippet
+          authorize! :destroy_personal_snippet, snippet
+          snippet.destroy
+          no_content!
+        end
+
+        desc 'Get a raw snippet' do
+          detail 'This feature was introduced in GitLab 8.15.'
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of a snippet'
+        end
+        get ":id/raw" do
+          snippet = snippets_for_current_user.find_by(id: params.delete(:id))
+          return not_found!('Snippet') unless snippet
+
+          env['api.format'] = :txt
+          content_type 'text/plain'
+          present snippet.content
+        end
+      end
+    end
+  end
+end

lib/gitlab/visibility_level.rb

@@ -35,6 +35,10 @@ module Gitlab
     class << self
       delegate :values, to: :options
 
+      def string_values
+        string_options.keys
+      end
+
       def options
         {
           'Private'  => PRIVATE,
@@ -43,6 +47,14 @@ module Gitlab
         }
       end
 
+      def string_options
+        {
+          'private'  => PRIVATE,
+          'internal' => INTERNAL,
+          'public'   => PUBLIC
+        }
+      end
+
       def highest_allowed_level
         restricted_levels = current_application_settings.restricted_visibility_levels
 
@@ -82,18 +94,39 @@ module Gitlab
 
         level_name
       end
+
+      def level_value(level)
+        return string_options[level] if level.is_a? String
+        level
+      end
+
+      def string_level(level)
+        string_options.key(level)
+      end
     end
 
     def private?
-      visibility_level_field == PRIVATE
+      visibility_level_value == PRIVATE
     end
 
     def internal?
-      visibility_level_field == INTERNAL
+      visibility_level_value == INTERNAL
     end
 
     def public?
-      visibility_level_field == PUBLIC
+      visibility_level_value == PUBLIC
+    end
+
+    def visibility_level_value
+      self[visibility_level_field]
+    end
+
+    def visibility
+      Gitlab::VisibilityLevel.string_level(visibility_level_value)
+    end
+
+    def visibility=(level)
+      self[visibility_level_field] = Gitlab::VisibilityLevel.level_value(level)
     end
   end
 end

spec/requests/api/environments_spec.rb

@@ -24,6 +24,7 @@ describe API::Environments, api: true  do
         expect(json_response.first['name']).to eq(environment.name)
         expect(json_response.first['external_url']).to eq(environment.external_url)
         expect(json_response.first['project']['id']).to eq(project.id)
+        expect(json_response.first['project']['visibility']).to be_present
       end
     end
 

spec/requests/api/groups_spec.rb

@@ -176,7 +176,7 @@ describe API::Groups, api: true  do
         expect(json_response['name']).to eq(group1.name)
         expect(json_response['path']).to eq(group1.path)
         expect(json_response['description']).to eq(group1.description)
-        expect(json_response['visibility_level']).to eq(group1.visibility_level)
+        expect(json_response['visibility']).to eq(Gitlab::VisibilityLevel.string_level(group1.visibility_level))
         expect(json_response['avatar_url']).to eq(group1.avatar_url)
         expect(json_response['web_url']).to eq(group1.web_url)
         expect(json_response['request_access_enabled']).to eq(group1.request_access_enabled)
@@ -295,7 +295,7 @@ describe API::Groups, api: true  do
         expect(json_response.length).to eq(2)
         project_names = json_response.map { |proj| proj['name'] }
         expect(project_names).to match_array([project1.name, project3.name])
-        expect(json_response.first['visibility_level']).to be_present
+        expect(json_response.first['visibility']).to be_present
       end
 
       it "returns the group's projects with simple representation" do
@@ -306,7 +306,7 @@ describe API::Groups, api: true  do
         expect(json_response.length).to eq(2)
         project_names = json_response.map { |proj| proj['name'] }
         expect(project_names).to match_array([project1.name, project3.name])
-        expect(json_response.first['visibility_level']).not_to be_present
+        expect(json_response.first['visibility']).not_to be_present
       end
 
       it 'filters the groups projects' do

spec/requests/api/project_snippets_spec.rb

@@ -44,7 +44,7 @@ describe API::ProjectSnippets, api: true do
         title: 'Test Title',
         file_name: 'test.rb',
         code: 'puts "hello world"',
-        visibility_level: Snippet::PUBLIC
+        visibility: 'public'
       }
     end
 
@@ -56,7 +56,7 @@ describe API::ProjectSnippets, api: true do
       expect(snippet.content).to eq(params[:code])
       expect(snippet.title).to eq(params[:title])
       expect(snippet.file_name).to eq(params[:file_name])
-      expect(snippet.visibility_level).to eq(params[:visibility_level])
+      expect(snippet.visibility_level).to eq(Snippet::PUBLIC)
     end
 
     it 'returns 400 for missing parameters' do
@@ -80,14 +80,14 @@ describe API::ProjectSnippets, api: true do
 
       context 'when the snippet is private' do
         it 'creates the snippet' do
-          expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
+          expect { create_snippet(project, visibility: 'private') }.
             to change { Snippet.count }.by(1)
         end
       end
 
       context 'when the snippet is public' do
-        it 'rejects the shippet' do
-          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+        it 'rejects the snippet' do
+          expect { create_snippet(project, visibility: 'public') }.
             not_to change { Snippet.count }
 
           expect(response).to have_http_status(400)
@@ -95,7 +95,7 @@ describe API::ProjectSnippets, api: true do
         end
 
         it 'creates a spam log' do
-          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+          expect { create_snippet(project, visibility: 'public') }.
             to change { SpamLog.count }.by(1)
         end
       end
@@ -165,7 +165,7 @@ describe API::ProjectSnippets, api: true do
         let(:visibility_level) { Snippet::PRIVATE }
 
         it 'rejects the snippet' do
-          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+          expect { update_snippet(title: 'Foo', visibility: 'public') }.
             not_to change { snippet.reload.title }
 
           expect(response).to have_http_status(400)
@@ -173,7 +173,7 @@ describe API::ProjectSnippets, api: true do
         end
 
         it 'creates a spam log' do
-          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+          expect { update_snippet(title: 'Foo', visibility: 'public') }.
             to change { SpamLog.count }.by(1)
         end
       end

spec/requests/api/projects_spec.rb

@@ -340,24 +340,27 @@ describe API::Projects, api: true  do
     end
 
     it 'sets a project as public' do
-      project = attributes_for(:project, :public)
+      project = attributes_for(:project, visibility: 'public')
+
       post api('/projects', user), project
-      expect(json_response['public']).to be_truthy
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PUBLIC)
+
+      expect(json_response['visibility']).to eq('public')
     end
 
     it 'sets a project as internal' do
-      project = attributes_for(:project, :internal)
+      project = attributes_for(:project, visibility: 'internal')
+
       post api('/projects', user), project
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::INTERNAL)
+
+      expect(json_response['visibility']).to eq('internal')
     end
 
     it 'sets a project as private' do
-      project = attributes_for(:project, :private)
+      project = attributes_for(:project, visibility: 'private')
+
       post api('/projects', user), project
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PRIVATE)
+
+      expect(json_response['visibility']).to eq('private')
     end
 
     it 'sets a project as allowing merge even if build fails' do
@@ -397,7 +400,7 @@ describe API::Projects, api: true  do
     end
 
     context 'when a visibility level is restricted' do
-      let(:project_param) { attributes_for(:project, :public) }
+      let(:project_param) { attributes_for(:project, visibility: 'public') }
 
       before do
         stub_application_setting(restricted_visibility_levels: [Gitlab::VisibilityLevel::PUBLIC])
@@ -415,10 +418,7 @@ describe API::Projects, api: true  do
       it 'allows an admin to override restricted visibility settings' do
         post api('/projects', admin), project_param
 
-        expect(json_response['public']).to be_truthy
-        expect(json_response['visibility_level']).to(
-          eq(Gitlab::VisibilityLevel::PUBLIC)
-        )
+        expect(json_response['visibility']).to eq('public')
       end
     end
   end
@@ -459,28 +459,29 @@ describe API::Projects, api: true  do
     end
 
     it 'sets a project as public' do
-      project = attributes_for(:project, :public)
+      project = attributes_for(:project, visibility: 'public')
+
       post api("/projects/user/#{user.id}", admin), project
 
       expect(response).to have_http_status(201)
-      expect(json_response['public']).to be_truthy
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PUBLIC)
+      expect(json_response['visibility']).to eq('public')
     end
 
     it 'sets a project as internal' do
-      project = attributes_for(:project, :internal)
+      project = attributes_for(:project, visibility: 'internal')
+
       post api("/projects/user/#{user.id}", admin), project
 
       expect(response).to have_http_status(201)
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::INTERNAL)
+      expect(json_response['visibility']).to eq('internal')
     end
 
     it 'sets a project as private' do
-      project = attributes_for(:project, :private)
+      project = attributes_for(:project, visibility: 'private')
+
       post api("/projects/user/#{user.id}", admin), project
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PRIVATE)
+
+      expect(json_response['visibility']).to eq('private')
     end
 
     it 'sets a project as allowing merge even if build fails' do
@@ -556,9 +557,8 @@ describe API::Projects, api: true  do
         expect(json_response['description']).to eq(project.description)
         expect(json_response['default_branch']).to eq(project.default_branch)
         expect(json_response['tag_list']).to be_an Array
-        expect(json_response['public']).to be_falsey
         expect(json_response['archived']).to be_falsey
-        expect(json_response['visibility_level']).to be_present
+        expect(json_response['visibility']).to be_present
         expect(json_response['ssh_url_to_repo']).to be_present
         expect(json_response['http_url_to_repo']).to be_present
         expect(json_response['web_url']).to be_present
@@ -812,8 +812,7 @@ describe API::Projects, api: true  do
   describe 'POST /projects/:id/snippets' do
     it 'creates a new project snippet' do
       post api("/projects/#{project.id}/snippets", user),
-        title: 'api test', file_name: 'sample.rb', code: 'test',
-        visibility_level: Gitlab::VisibilityLevel::PRIVATE
+        title: 'api test', file_name: 'sample.rb', code: 'test', visibility: 'private'
       expect(response).to have_http_status(201)
       expect(json_response['title']).to eq('api test')
     end
@@ -1065,7 +1064,7 @@ describe API::Projects, api: true  do
       end
 
       it 'updates visibility_level' do
-        project_param = { visibility_level: Gitlab::VisibilityLevel::PUBLIC }
+        project_param = { visibility: 'public' }
         put api("/projects/#{project3.id}", user), project_param
         expect(response).to have_http_status(200)
         project_param.each_pair do |k, v|
@@ -1075,13 +1074,13 @@ describe API::Projects, api: true  do
 
       it 'updates visibility_level from public to private' do
         project3.update_attributes({ visibility_level: Gitlab::VisibilityLevel::PUBLIC })
-        project_param = { visibility_level: Gitlab::VisibilityLevel::PRIVATE }
+        project_param = { visibility: 'private' }
         put api("/projects/#{project3.id}", user), project_param
         expect(response).to have_http_status(200)
         project_param.each_pair do |k, v|
           expect(json_response[k.to_s]).to eq(v)
         end
-        expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PRIVATE)
+        expect(json_response['visibility']).to eq('private')
       end
 
       it 'does not update name to existing name' do
@@ -1148,7 +1147,7 @@ describe API::Projects, api: true  do
       end
 
       it 'does not update visibility_level' do
-        project_param = { visibility_level: Gitlab::VisibilityLevel::PUBLIC }
+        project_param = { visibility: 'public' }
         put api("/projects/#{project3.id}", user4), project_param
         expect(response).to have_http_status(403)
       end

spec/requests/api/settings_spec.rb

@@ -18,6 +18,9 @@ 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
 
@@ -37,6 +40,8 @@ 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)
         expect(json_response['default_projects_limit']).to eq(3)
@@ -47,6 +52,8 @@ 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

spec/requests/api/snippets_spec.rb

@@ -87,7 +87,7 @@ describe API::Snippets, api: true do
         title: 'Test Title',
         file_name: 'test.rb',
         content: 'puts "hello world"',
-        visibility_level: Snippet::PUBLIC
+        visibility: 'public'
       }
     end
 
@@ -120,14 +120,14 @@ describe API::Snippets, api: true do
 
       context 'when the snippet is private' do
         it 'creates the snippet' do
-          expect { create_snippet(visibility_level: Snippet::PRIVATE) }.
+          expect { create_snippet(visibility: 'private') }.
             to change { Snippet.count }.by(1)
         end
       end
 
       context 'when the snippet is public' do
         it 'rejects the shippet' do
-          expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
+          expect { create_snippet(visibility: 'public') }.
             not_to change { Snippet.count }
 
           expect(response).to have_http_status(400)
@@ -135,7 +135,7 @@ describe API::Snippets, api: true do
         end
 
         it 'creates a spam log' do
-          expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
+          expect { create_snippet(visibility: 'public') }.
             to change { SpamLog.count }.by(1)
         end
       end
@@ -218,12 +218,12 @@ describe API::Snippets, api: true do
         let(:visibility_level) { Snippet::PRIVATE }
 
         it 'rejects the snippet' do
-          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+          expect { update_snippet(title: 'Foo', visibility: 'public') }.
             not_to change { snippet.reload.title }
         end
 
         it 'creates a spam log' do
-          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+          expect { update_snippet(title: 'Foo', visibility: 'public') }.
             to change { SpamLog.count }.by(1)
         end
       end

spec/requests/api/v3/environments_spec.rb

@@ -12,6 +12,132 @@ describe API::V3::Environments, api: true  do
     project.team << [user, :master]
   end
 
+  shared_examples 'a paginated resources' do
+    before do
+      # Fires the request
+      request
+    end
+
+    it 'has pagination headers' do
+      expect(response.headers).to include('X-Total')
+      expect(response.headers).to include('X-Total-Pages')
+      expect(response.headers).to include('X-Per-Page')
+      expect(response.headers).to include('X-Page')
+      expect(response.headers).to include('X-Next-Page')
+      expect(response.headers).to include('X-Prev-Page')
+      expect(response.headers).to include('Link')
+    end
+  end
+
+  describe 'GET /projects/:id/environments' do
+    context 'as member of the project' do
+      it_behaves_like 'a paginated resources' do
+        let(:request) { get v3_api("/projects/#{project.id}/environments", user) }
+      end
+
+      it 'returns project environments' do
+        get v3_api("/projects/#{project.id}/environments", user)
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.size).to eq(1)
+        expect(json_response.first['name']).to eq(environment.name)
+        expect(json_response.first['external_url']).to eq(environment.external_url)
+        expect(json_response.first['project']['id']).to eq(project.id)
+        expect(json_response.first['project']['visibility_level']).to be_present
+      end
+    end
+
+    context 'as non member' do
+      it 'returns a 404 status code' do
+        get v3_api("/projects/#{project.id}/environments", non_member)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+
+  describe 'POST /projects/:id/environments' do
+    context 'as a member' do
+      it 'creates a environment with valid params' do
+        post v3_api("/projects/#{project.id}/environments", user), name: "mepmep"
+
+        expect(response).to have_http_status(201)
+        expect(json_response['name']).to eq('mepmep')
+        expect(json_response['slug']).to eq('mepmep')
+        expect(json_response['external']).to be nil
+      end
+
+      it 'requires name to be passed' do
+        post v3_api("/projects/#{project.id}/environments", user), external_url: 'test.gitlab.com'
+
+        expect(response).to have_http_status(400)
+      end
+
+      it 'returns a 400 if environment already exists' do
+        post v3_api("/projects/#{project.id}/environments", user), name: environment.name
+
+        expect(response).to have_http_status(400)
+      end
+
+      it 'returns a 400 if slug is specified' do
+        post v3_api("/projects/#{project.id}/environments", user), name: "foo", slug: "foo"
+
+        expect(response).to have_http_status(400)
+        expect(json_response["error"]).to eq("slug is automatically generated and cannot be changed")
+      end
+    end
+
+    context 'a non member' do
+      it 'rejects the request' do
+        post v3_api("/projects/#{project.id}/environments", non_member), name: 'gitlab.com'
+
+        expect(response).to have_http_status(404)
+      end
+
+      it 'returns a 400 when the required params are missing' do
+        post v3_api("/projects/12345/environments", non_member), external_url: 'http://env.git.com'
+      end
+    end
+  end
+
+  describe 'PUT /projects/:id/environments/:environment_id' do
+    it 'returns a 200 if name and external_url are changed' do
+      url = 'https://mepmep.whatever.ninja'
+      put v3_api("/projects/#{project.id}/environments/#{environment.id}", user),
+          name: 'Mepmep', external_url: url
+
+      expect(response).to have_http_status(200)
+      expect(json_response['name']).to eq('Mepmep')
+      expect(json_response['external_url']).to eq(url)
+    end
+
+    it "won't allow slug to be changed" do
+      slug = environment.slug
+      api_url = v3_api("/projects/#{project.id}/environments/#{environment.id}", user)
+      put api_url, slug: slug + "-foo"
+
+      expect(response).to have_http_status(400)
+      expect(json_response["error"]).to eq("slug is automatically generated and cannot be changed")
+    end
+
+    it "won't update the external_url if only the name is passed" do
+      url = environment.external_url
+      put v3_api("/projects/#{project.id}/environments/#{environment.id}", user),
+          name: 'Mepmep'
+
+      expect(response).to have_http_status(200)
+      expect(json_response['name']).to eq('Mepmep')
+      expect(json_response['external_url']).to eq(url)
+    end
+
+    it 'returns a 404 if the environment does not exist' do
+      put v3_api("/projects/#{project.id}/environments/12345", user)
+
+      expect(response).to have_http_status(404)
+    end
+  end
+
   describe 'DELETE /projects/:id/environments/:environment_id' do
     context 'as a master' do
       it 'returns a 200 for an existing environment' do

spec/requests/api/v3/groups_spec.rb

@@ -4,14 +4,144 @@ describe API::V3::Groups, api: true  do
   include ApiHelpers
   include UploadHelpers
 
+  let(:user1) { create(:user, can_create_group: false) }
   let(:user2) { create(:user) }
+  let(:user3) { create(:user) }
+  let(:admin) { create(:admin) }
+  let!(:group1) { create(:group, avatar: File.open(uploaded_image_temp_path)) }
   let!(:group2) { create(:group, :private) }
+  let!(:project1) { create(:empty_project, namespace: group1) }
   let!(:project2) { create(:empty_project, namespace: group2) }
+  let!(:project3) { create(:empty_project, namespace: group1, path: 'test', visibility_level: Gitlab::VisibilityLevel::PRIVATE) }
 
   before do
+    group1.add_owner(user1)
     group2.add_owner(user2)
   end
 
+  describe "GET /groups" do
+    context "when unauthenticated" do
+      it "returns authentication error" do
+        get v3_api("/groups")
+
+        expect(response).to have_http_status(401)
+      end
+    end
+
+    context "when authenticated as user" do
+      it "normal user: returns an array of groups of user1" do
+        get v3_api("/groups", user1)
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response)
+          .to satisfy_one { |group| group['name'] == group1.name }
+      end
+
+      it "does not include statistics" do
+        get v3_api("/groups", user1), statistics: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.first).not_to include 'statistics'
+      end
+    end
+
+    context "when authenticated as admin" do
+      it "admin: returns an array of all groups" do
+        get v3_api("/groups", admin)
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(2)
+      end
+
+      it "does not include statistics by default" do
+        get v3_api("/groups", admin)
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.first).not_to include('statistics')
+      end
+
+      it "includes statistics if requested" do
+        attributes = {
+          storage_size: 702,
+          repository_size: 123,
+          lfs_objects_size: 234,
+          build_artifacts_size: 345,
+        }.stringify_keys
+
+        project1.statistics.update!(attributes)
+
+        get v3_api("/groups", admin), statistics: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response)
+          .to satisfy_one { |group| group['statistics'] == attributes }
+      end
+    end
+
+    context "when using skip_groups in request" do
+      it "returns all groups excluding skipped groups" do
+        get v3_api("/groups", admin), skip_groups: [group2.id]
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+      end
+    end
+
+    context "when using all_available in request" do
+      let(:response_groups) { json_response.map { |group| group['name'] } }
+
+      it "returns all groups you have access to" do
+        public_group = create :group, :public
+
+        get v3_api("/groups", user1), all_available: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(response_groups).to contain_exactly(public_group.name, group1.name)
+      end
+    end
+
+    context "when using sorting" do
+      let(:group3) { create(:group, name: "a#{group1.name}", path: "z#{group1.path}") }
+      let(:response_groups) { json_response.map { |group| group['name'] } }
+
+      before do
+        group3.add_owner(user1)
+      end
+
+      it "sorts by name ascending by default" do
+        get v3_api("/groups", user1)
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(response_groups).to eq([group3.name, group1.name])
+      end
+
+      it "sorts in descending order when passed" do
+        get v3_api("/groups", user1), sort: "desc"
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(response_groups).to eq([group1.name, group3.name])
+      end
+
+      it "sorts by the order_by param" do
+        get v3_api("/groups", user1), order_by: "path"
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(response_groups).to eq([group1.name, group3.name])
+      end
+    end
+  end
+
   describe 'GET /groups/owned' do
     context 'when unauthenticated' do
       it 'returns authentication error' do
@@ -32,4 +162,404 @@ describe API::V3::Groups, api: true  do
       end
     end
   end
+
+  describe "GET /groups/:id" do
+    context "when authenticated as user" do
+      it "returns one of user1's groups" do
+        project = create(:empty_project, namespace: group2, path: 'Foo')
+        create(:project_group_link, project: project, group: group1)
+
+        get v3_api("/groups/#{group1.id}", user1)
+
+        expect(response).to have_http_status(200)
+        expect(json_response['id']).to eq(group1.id)
+        expect(json_response['name']).to eq(group1.name)
+        expect(json_response['path']).to eq(group1.path)
+        expect(json_response['description']).to eq(group1.description)
+        expect(json_response['visibility_level']).to eq(group1.visibility_level)
+        expect(json_response['avatar_url']).to eq(group1.avatar_url)
+        expect(json_response['web_url']).to eq(group1.web_url)
+        expect(json_response['request_access_enabled']).to eq(group1.request_access_enabled)
+        expect(json_response['full_name']).to eq(group1.full_name)
+        expect(json_response['full_path']).to eq(group1.full_path)
+        expect(json_response['parent_id']).to eq(group1.parent_id)
+        expect(json_response['projects']).to be_an Array
+        expect(json_response['projects'].length).to eq(2)
+        expect(json_response['shared_projects']).to be_an Array
+        expect(json_response['shared_projects'].length).to eq(1)
+        expect(json_response['shared_projects'][0]['id']).to eq(project.id)
+      end
+
+      it "does not return a non existing group" do
+        get v3_api("/groups/1328", user1)
+
+        expect(response).to have_http_status(404)
+      end
+
+      it "does not return a group not attached to user1" do
+        get v3_api("/groups/#{group2.id}", user1)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context "when authenticated as admin" do
+      it "returns any existing group" do
+        get v3_api("/groups/#{group2.id}", admin)
+
+        expect(response).to have_http_status(200)
+        expect(json_response['name']).to eq(group2.name)
+      end
+
+      it "does not return a non existing group" do
+        get v3_api("/groups/1328", admin)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'when using group path in URL' do
+      it 'returns any existing group' do
+        get v3_api("/groups/#{group1.path}", admin)
+
+        expect(response).to have_http_status(200)
+        expect(json_response['name']).to eq(group1.name)
+      end
+
+      it 'does not return a non existing group' do
+        get v3_api('/groups/unknown', admin)
+
+        expect(response).to have_http_status(404)
+      end
+
+      it 'does not return a group not attached to user1' do
+        get v3_api("/groups/#{group2.path}", user1)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+
+  describe 'PUT /groups/:id' do
+    let(:new_group_name) { 'New Group'}
+
+    context 'when authenticated as the group owner' do
+      it 'updates the group' do
+        put v3_api("/groups/#{group1.id}", user1), name: new_group_name, request_access_enabled: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response['name']).to eq(new_group_name)
+        expect(json_response['request_access_enabled']).to eq(true)
+      end
+
+      it 'returns 404 for a non existing group' do
+        put v3_api('/groups/1328', user1), name: new_group_name
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'when authenticated as the admin' do
+      it 'updates the group' do
+        put v3_api("/groups/#{group1.id}", admin), name: new_group_name
+
+        expect(response).to have_http_status(200)
+        expect(json_response['name']).to eq(new_group_name)
+      end
+    end
+
+    context 'when authenticated as an user that can see the group' do
+      it 'does not updates the group' do
+        put v3_api("/groups/#{group1.id}", user2), name: new_group_name
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    context 'when authenticated as an user that cannot see the group' do
+      it 'returns 404 when trying to update the group' do
+        put v3_api("/groups/#{group2.id}", user1), name: new_group_name
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+
+  describe "GET /groups/:id/projects" do
+    context "when authenticated as user" do
+      it "returns the group's projects" do
+        get v3_api("/groups/#{group1.id}/projects", user1)
+
+        expect(response).to have_http_status(200)
+        expect(json_response.length).to eq(2)
+        project_names = json_response.map { |proj| proj['name'] }
+        expect(project_names).to match_array([project1.name, project3.name])
+        expect(json_response.first['visibility_level']).to be_present
+      end
+
+      it "returns the group's projects with simple representation" do
+        get v3_api("/groups/#{group1.id}/projects", user1), simple: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response.length).to eq(2)
+        project_names = json_response.map { |proj| proj['name'] }
+        expect(project_names).to match_array([project1.name, project3.name])
+        expect(json_response.first['visibility_level']).not_to be_present
+      end
+
+      it 'filters the groups projects' do
+        public_project = create(:empty_project, :public, path: 'test1', group: group1)
+
+        get v3_api("/groups/#{group1.id}/projects", user1), visibility: 'public'
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an(Array)
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['name']).to eq(public_project.name)
+      end
+
+      it "does not return a non existing group" do
+        get v3_api("/groups/1328/projects", user1)
+
+        expect(response).to have_http_status(404)
+      end
+
+      it "does not return a group not attached to user1" do
+        get v3_api("/groups/#{group2.id}/projects", user1)
+
+        expect(response).to have_http_status(404)
+      end
+
+      it "only returns projects to which user has access" do
+        project3.team << [user3, :developer]
+
+        get v3_api("/groups/#{group1.id}/projects", user3)
+
+        expect(response).to have_http_status(200)
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['name']).to eq(project3.name)
+      end
+
+      it 'only returns the projects owned by user' do
+        project2.group.add_owner(user3)
+
+        get v3_api("/groups/#{project2.group.id}/projects", user3), owned: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['name']).to eq(project2.name)
+      end
+
+      it 'only returns the projects starred by user' do
+        user1.starred_projects = [project1]
+
+        get v3_api("/groups/#{group1.id}/projects", user1), starred: true
+
+        expect(response).to have_http_status(200)
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['name']).to eq(project1.name)
+      end
+    end
+
+    context "when authenticated as admin" do
+      it "returns any existing group" do
+        get v3_api("/groups/#{group2.id}/projects", admin)
+
+        expect(response).to have_http_status(200)
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['name']).to eq(project2.name)
+      end
+
+      it "does not return a non existing group" do
+        get v3_api("/groups/1328/projects", admin)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'when using group path in URL' do
+      it 'returns any existing group' do
+        get v3_api("/groups/#{group1.path}/projects", admin)
+
+        expect(response).to have_http_status(200)
+        project_names = json_response.map { |proj| proj['name'] }
+        expect(project_names).to match_array([project1.name, project3.name])
+      end
+
+      it 'does not return a non existing group' do
+        get v3_api('/groups/unknown/projects', admin)
+
+        expect(response).to have_http_status(404)
+      end
+
+      it 'does not return a group not attached to user1' do
+        get v3_api("/groups/#{group2.path}/projects", user1)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+
+  describe "POST /groups" do
+    context "when authenticated as user without group permissions" do
+      it "does not create group" do
+        post v3_api("/groups", user1), attributes_for(:group)
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    context "when authenticated as user with group permissions" do
+      it "creates group" do
+        group = attributes_for(:group, { request_access_enabled: false })
+
+        post v3_api("/groups", user3), group
+
+        expect(response).to have_http_status(201)
+
+        expect(json_response["name"]).to eq(group[:name])
+        expect(json_response["path"]).to eq(group[:path])
+        expect(json_response["request_access_enabled"]).to eq(group[:request_access_enabled])
+      end
+
+      it "creates a nested group" do
+        parent = create(:group)
+        parent.add_owner(user3)
+        group = attributes_for(:group, { parent_id: parent.id })
+
+        post v3_api("/groups", user3), group
+
+        expect(response).to have_http_status(201)
+
+        expect(json_response["full_path"]).to eq("#{parent.path}/#{group[:path]}")
+        expect(json_response["parent_id"]).to eq(parent.id)
+      end
+
+      it "does not create group, duplicate" do
+        post v3_api("/groups", user3), { name: 'Duplicate Test', path: group2.path }
+
+        expect(response).to have_http_status(400)
+        expect(response.message).to eq("Bad Request")
+      end
+
+      it "returns 400 bad request error if name not given" do
+        post v3_api("/groups", user3), { path: group2.path }
+
+        expect(response).to have_http_status(400)
+      end
+
+      it "returns 400 bad request error if path not given" do
+        post v3_api("/groups", user3), { name: 'test' }
+
+        expect(response).to have_http_status(400)
+      end
+    end
+  end
+
+  describe "DELETE /groups/:id" do
+    context "when authenticated as user" do
+      it "removes group" do
+        delete v3_api("/groups/#{group1.id}", user1)
+
+        expect(response).to have_http_status(200)
+      end
+
+      it "does not remove a group if not an owner" do
+        user4 = create(:user)
+        group1.add_master(user4)
+
+        delete v3_api("/groups/#{group1.id}", user3)
+
+        expect(response).to have_http_status(403)
+      end
+
+      it "does not remove a non existing group" do
+        delete v3_api("/groups/1328", user1)
+
+        expect(response).to have_http_status(404)
+      end
+
+      it "does not remove a group not attached to user1" do
+        delete v3_api("/groups/#{group2.id}", user1)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context "when authenticated as admin" do
+      it "removes any existing group" do
+        delete v3_api("/groups/#{group2.id}", admin)
+
+        expect(response).to have_http_status(200)
+      end
+
+      it "does not remove a non existing group" do
+        delete v3_api("/groups/1328", admin)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+
+  describe "POST /groups/:id/projects/:project_id" do
+    let(:project) { create(:empty_project) }
+    let(:project_path) { "#{project.namespace.path}%2F#{project.path}" }
+
+    before(:each) do
+      allow_any_instance_of(Projects::TransferService).
+        to receive(:execute).and_return(true)
+    end
+
+    context "when authenticated as user" do
+      it "does not transfer project to group" do
+        post v3_api("/groups/#{group1.id}/projects/#{project.id}", user2)
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    context "when authenticated as admin" do
+      it "transfers project to group" do
+        post v3_api("/groups/#{group1.id}/projects/#{project.id}", admin)
+
+        expect(response).to have_http_status(201)
+      end
+
+      context 'when using project path in URL' do
+        context 'with a valid project path' do
+          it "transfers project to group" do
+            post v3_api("/groups/#{group1.id}/projects/#{project_path}", admin)
+
+            expect(response).to have_http_status(201)
+          end
+        end
+
+        context 'with a non-existent project path' do
+          it "does not transfer project to group" do
+            post v3_api("/groups/#{group1.id}/projects/nogroup%2Fnoproject", admin)
+
+            expect(response).to have_http_status(404)
+          end
+        end
+      end
+
+      context 'when using a group path in URL' do
+        context 'with a valid group path' do
+          it "transfers project to group" do
+            post v3_api("/groups/#{group1.path}/projects/#{project_path}", admin)
+
+            expect(response).to have_http_status(201)
+          end
+        end
+
+        context 'with a non-existent group path' do
+          it "does not transfer project to group" do
+            post v3_api("/groups/noexist/projects/#{project_path}", admin)
+
+            expect(response).to have_http_status(404)
+          end
+        end
+      end
+    end
+  end
 end

spec/requests/api/v3/settings_spec.rb

+require 'spec_helper'
+
+describe API::V3::Settings, 'Settings', api: true  do
+  include ApiHelpers
+
+  let(:user) { create(:user) }
+  let(:admin) { create(:admin) }
+
+  describe "GET /application/settings" do
+    it "returns application settings" do
+      get v3_api("/application/settings", admin)
+      expect(response).to have_http_status(200)
+      expect(json_response).to be_an Hash
+      expect(json_response['default_projects_limit']).to eq(42)
+      expect(json_response['signin_enabled']).to be_truthy
+      expect(json_response['repository_storage']).to eq('default')
+      expect(json_response['koding_enabled']).to be_falsey
+      expect(json_response['koding_url']).to be_nil
+      expect(json_response['plantuml_enabled']).to be_falsey
+      expect(json_response['plantuml_url']).to be_nil
+    end
+  end
+
+  describe "PUT /application/settings" do
+    context "custom repository storage type set in the config" do
+      before do
+        storages = { 'custom' => 'tmp/tests/custom_repositories' }
+        allow(Gitlab.config.repositories).to receive(:storages).and_return(storages)
+      end
+
+      it "updates application settings" do
+        put v3_api("/application/settings", admin),
+          default_projects_limit: 3, signin_enabled: false, repository_storage: 'custom', koding_enabled: true, koding_url: 'http://koding.example.com',
+          plantuml_enabled: true, plantuml_url: 'http://plantuml.example.com'
+        expect(response).to have_http_status(200)
+        expect(json_response['default_projects_limit']).to eq(3)
+        expect(json_response['signin_enabled']).to be_falsey
+        expect(json_response['repository_storage']).to eq('custom')
+        expect(json_response['repository_storages']).to eq(['custom'])
+        expect(json_response['koding_enabled']).to be_truthy
+        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')
+      end
+    end
+
+    context "missing koding_url value when koding_enabled is true" do
+      it "returns a blank parameter error message" do
+        put v3_api("/application/settings", admin), koding_enabled: true
+
+        expect(response).to have_http_status(400)
+        expect(json_response['error']).to eq('koding_url is missing')
+      end
+    end
+
+    context "missing plantuml_url value when plantuml_enabled is true" do
+      it "returns a blank parameter error message" do
+        put v3_api("/application/settings", admin), plantuml_enabled: true
+
+        expect(response).to have_http_status(400)
+        expect(json_response['error']).to eq('plantuml_url is missing')
+      end
+    end
+  end
+end

spec/requests/api/v3/snippets_spec.rb

+require 'rails_helper'
+
+describe API::V3::Snippets, api: true do
+  include ApiHelpers
+  let!(:user) { create(:user) }
+
+  describe 'GET /snippets/' do
+    it 'returns snippets available' do
+      public_snippet = create(:personal_snippet, :public, author: user)
+      private_snippet = create(:personal_snippet, :private, author: user)
+      internal_snippet = create(:personal_snippet, :internal, author: user)
+
+      get v3_api("/snippets/", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response.map { |snippet| snippet['id']} ).to contain_exactly(
+        public_snippet.id,
+        internal_snippet.id,
+        private_snippet.id)
+      expect(json_response.last).to have_key('web_url')
+      expect(json_response.last).to have_key('raw_url')
+    end
+
+    it 'hides private snippets from regular user' do
+      create(:personal_snippet, :private)
+
+      get v3_api("/snippets/", user)
+      expect(response).to have_http_status(200)
+      expect(json_response.size).to eq(0)
+    end
+  end
+
+  describe 'GET /snippets/public' do
+    let!(:other_user) { create(:user) }
+    let!(:public_snippet) { create(:personal_snippet, :public, author: user) }
+    let!(:private_snippet) { create(:personal_snippet, :private, author: user) }
+    let!(:internal_snippet) { create(:personal_snippet, :internal, author: user) }
+    let!(:public_snippet_other) { create(:personal_snippet, :public, author: other_user) }
+    let!(:private_snippet_other) { create(:personal_snippet, :private, author: other_user) }
+    let!(:internal_snippet_other) { create(:personal_snippet, :internal, author: other_user) }
+
+    it 'returns all snippets with public visibility from all users' do
+      get v3_api("/snippets/public", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response.map { |snippet| snippet['id']} ).to contain_exactly(
+        public_snippet.id,
+        public_snippet_other.id)
+      expect(json_response.map{ |snippet| snippet['web_url']} ).to include(
+        "http://localhost/snippets/#{public_snippet.id}",
+        "http://localhost/snippets/#{public_snippet_other.id}")
+      expect(json_response.map{ |snippet| snippet['raw_url']} ).to include(
+        "http://localhost/snippets/#{public_snippet.id}/raw",
+        "http://localhost/snippets/#{public_snippet_other.id}/raw")
+    end
+  end
+
+  describe 'GET /snippets/:id/raw' do
+    let(:snippet) { create(:personal_snippet, author: user) }
+
+    it 'returns raw text' do
+      get v3_api("/snippets/#{snippet.id}/raw", user)
+
+      expect(response).to have_http_status(200)
+      expect(response.content_type).to eq 'text/plain'
+      expect(response.body).to eq(snippet.content)
+    end
+
+    it 'returns 404 for invalid snippet id' do
+      delete v3_api("/snippets/1234", user)
+
+      expect(response).to have_http_status(404)
+      expect(json_response['message']).to eq('404 Snippet Not Found')
+    end
+  end
+
+  describe 'POST /snippets/' do
+    let(:params) do
+      {
+        title: 'Test Title',
+        file_name: 'test.rb',
+        content: 'puts "hello world"',
+        visibility_level: Snippet::PUBLIC
+      }
+    end
+
+    it 'creates a new snippet' do
+      expect do
+        post v3_api("/snippets/", user), params
+      end.to change { PersonalSnippet.count }.by(1)
+
+      expect(response).to have_http_status(201)
+      expect(json_response['title']).to eq(params[:title])
+      expect(json_response['file_name']).to eq(params[:file_name])
+    end
+
+    it 'returns 400 for missing parameters' do
+      params.delete(:title)
+
+      post v3_api("/snippets/", user), params
+
+      expect(response).to have_http_status(400)
+    end
+
+    context 'when the snippet is spam' do
+      def create_snippet(snippet_params = {})
+        post v3_api('/snippets', user), params.merge(snippet_params)
+      end
+
+      before do
+        allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
+      end
+
+      context 'when the snippet is private' do
+        it 'creates the snippet' do
+          expect { create_snippet(visibility_level: Snippet::PRIVATE) }.
+            to change { Snippet.count }.by(1)
+        end
+      end
+
+      context 'when the snippet is public' do
+        it 'rejects the shippet' do
+          expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
+            not_to change { Snippet.count }
+          expect(response).to have_http_status(400)
+        end
+
+        it 'creates a spam log' do
+          expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+    end
+  end
+
+  describe 'PUT /snippets/:id' do
+    let(:other_user) { create(:user) }
+    let(:public_snippet) { create(:personal_snippet, :public, author: user) }
+    it 'updates snippet' do
+      new_content = 'New content'
+
+      put v3_api("/snippets/#{public_snippet.id}", user), content: new_content
+
+      expect(response).to have_http_status(200)
+      public_snippet.reload
+      expect(public_snippet.content).to eq(new_content)
+    end
+
+    it 'returns 404 for invalid snippet id' do
+      put v3_api("/snippets/1234", user), title: 'foo'
+
+      expect(response).to have_http_status(404)
+      expect(json_response['message']).to eq('404 Snippet Not Found')
+    end
+
+    it "returns 404 for another user's snippet" do
+      put v3_api("/snippets/#{public_snippet.id}", other_user), title: 'fubar'
+
+      expect(response).to have_http_status(404)
+      expect(json_response['message']).to eq('404 Snippet Not Found')
+    end
+
+    it 'returns 400 for missing parameters' do
+      put v3_api("/snippets/1234", user)
+
+      expect(response).to have_http_status(400)
+    end
+  end
+
+  describe 'DELETE /snippets/:id' do
+    let!(:public_snippet) { create(:personal_snippet, :public, author: user) }
+    it 'deletes snippet' do
+      expect do
+        delete v3_api("/snippets/#{public_snippet.id}", user)
+
+        expect(response).to have_http_status(204)
+      end.to change { PersonalSnippet.count }.by(-1)
+    end
+
+    it 'returns 404 for invalid snippet id' do
+      delete v3_api("/snippets/1234", user)
+
+      expect(response).to have_http_status(404)
+      expect(json_response['message']).to eq('404 Snippet Not Found')
+    end
+  end
+end