Merge branch 'make-namespaces-api-available-to-all-users' into 'master'

Make namespace API available to all users

### What does this MR do?

This MR makes it possible for a user to query namespaces to which he/she has access. Also, it adds documentation for the existing API.

### Why was this MR needed?

Even though the `groups` API exists, it might still be useful to have an endpoint that tells the namespace type (e.g. `user` vs. `group`), especially if a user has access to a number of different projects.

### What are the relevant issue numbers?

Closes https://github.com/gitlabhq/gitlabhq/issues/9328

See merge request !708

CHANGELOG

@@ -14,6 +14,7 @@ v 7.12.0 (unreleased)
   - Add file attachment support in Milestone description (Stan Hu)
   - Fix milestone "Browse Issues" button.
   - Set milestone on new issue when creating issue from index with milestone filter active.
+  - Make namespace API available to all users (Stan Hu)
   - Add web hook support for note events (Stan Hu)
   - Disable "New Issue" and "New Merge Request" buttons when features are disabled in project settings (Stan Hu)
   - Remove Rack Attack monkey patches and bump to version 4.3.0 (Stan Hu)

app/models/user.rb

@@ -655,6 +655,12 @@ class User < ActiveRecord::Base
       end
   end
 
+  def namespaces
+    namespace_ids = groups.pluck(:id)
+    namespace_ids.push(namespace.id)
+    Namespace.where(id: namespace_ids)
+  end
+
   def oauth_authorized_tokens
     Doorkeeper::AccessToken.where(resource_owner_id: self.id, revoked_at: nil)
   end

doc/api/README.md

@@ -19,6 +19,7 @@
 - [Deploy Keys](deploy_keys.md)
 - [System Hooks](system_hooks.md)
 - [Groups](groups.md)
+- [Namespaces](namespaces.md)
 
 ## Clients
 

doc/api/namespaces.md

+# Namespaces
+
+## List namespaces
+
+Get a list of namespaces. (As user: my namespaces, as admin: all namespaces)
+
+```
+GET /namespaces
+```
+
+```json
+[
+  {
+    "id": 1,
+    "path": "user1",
+    "kind": "user"
+  },
+  {
+    "id": 2,
+    "path": "group1",
+    "kind": "group"
+  }
+]
+```
+
+You can search for namespaces by name or path, see below.
+
+## Search for namespace
+
+Get all namespaces that match your string in their name or path.
+
+```
+GET /namespaces?search=foobar
+```
+
+```json
+[
+  {
+    "id": 1,
+    "path": "user1",
+    "kind": "user"
+  }
+]
+```

lib/api/namespaces.rb

 module API
   # namespaces API
   class Namespaces < Grape::API
-    before do
-      authenticate!
-      authenticated_as_admin!
-    end
+    before { authenticate! }
 
     resource :namespaces do
       # Get a namespaces list
@@ -12,7 +9,11 @@ module API
       # Example Request:
       #  GET /namespaces
       get do
-        @namespaces = Namespace.all
+        @namespaces = if current_user.admin
+                        Namespace.all
+                      else
+                        current_user.namespaces
+                      end
         @namespaces = @namespaces.search(params[:search]) if params[:search].present?
         @namespaces = paginate @namespaces
 

spec/models/user_spec.rb

@@ -248,6 +248,7 @@ describe User do
     it { expect(@user.several_namespaces?).to be_truthy }
     it { expect(@user.authorized_groups).to eq([@group]) }
     it { expect(@user.owned_groups).to eq([@group]) }
+    it { expect(@user.namespaces).to match_array([@user.namespace, @group]) }
   end
 
   describe 'group multiple owners' do
@@ -270,6 +271,7 @@ describe User do
     end
 
     it { expect(@user.several_namespaces?).to be_falsey }
+    it { expect(@user.namespaces).to eq([@user.namespace]) }
   end
 
   describe 'blocking user' do

spec/requests/api/namespaces_spec.rb

@@ -3,6 +3,7 @@ require 'spec_helper'
 describe API::API, api: true  do
   include ApiHelpers
   let(:admin) { create(:admin) }
+  let(:user) { create(:user) }
   let!(:group1) { create(:group) }
   let!(:group2) { create(:group) }
 
@@ -22,6 +23,32 @@ describe API::API, api: true  do
 
         expect(json_response.length).to eq(Namespace.count)
       end
+
+      it "admin: should return an array of matched namespaces" do
+        get api("/namespaces?search=#{group1.name}", admin)
+        expect(response.status).to eq(200)
+        expect(json_response).to be_an Array
+
+        expect(json_response.length).to eq(1)
+      end
+    end
+
+    context "when authenticated as a regular user" do
+      it "user: should return an array of namespaces" do
+        get api("/namespaces", user)
+        expect(response.status).to eq(200)
+        expect(json_response).to be_an Array
+
+        expect(json_response.length).to eq(1)
+      end
+
+      it "admin: should return an array of matched namespaces" do
+        get api("/namespaces?search=#{user.username}", user)
+        expect(response.status).to eq(200)
+        expect(json_response).to be_an Array
+
+        expect(json_response.length).to eq(1)
+      end
     end
   end
 end