API: Support username with dots

lib/api/projects.rb

@@ -128,7 +128,7 @@ module API
       end
     end
-    resource :users, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
+    resource :users, requirements: { user_id: API::NO_SLASH_URL_PART_REGEX } do
       desc 'Get a user projects' do
         success Entities::BasicProjectDetails
       end

lib/api/users.rb

@@ -135,7 +135,7 @@ module API
       params do
         requires :id_or_username, type: String, desc: 'The ID or username of the user'
       end
-      get ":id_or_username/status" do
+      get ":id_or_username/status", requirements: { id_or_username: API::NO_SLASH_URL_PART_REGEX } do
         user = find_user(params[:id_or_username])
         not_found!('User') unless user && can?(current_user, :read_user, user)

spec/requests/api/projects_spec.rb

@@ -21,7 +21,7 @@ describe API::Projects do
   let(:project) { create(:project, :repository, namespace: user.namespace) }
   let(:project2) { create(:project, namespace: user.namespace) }
   let(:project_member) { create(:project_member, :developer, user: user3, project: project) }
-  let(:user4) { create(:user) }
+  let(:user4) { create(:user, username: 'user.with.dot') }
   let(:project3) do
     create(:project,
     :private,
@@ -724,7 +724,7 @@ describe API::Projects do
       expect(json_response['message']).to eq('404 User Not Found')
     end
-    it 'returns projects filtered by user' do
+    it 'returns projects filtered by user id' do
       get api("/users/#{user4.id}/projects/", user)
       expect(response).to have_gitlab_http_status(200)
@@ -733,6 +733,15 @@ describe API::Projects do
       expect(json_response.map { |project| project['id'] }).to contain_exactly(public_project.id)
     end
+    it 'returns projects filtered by username' do
+      get api("/users/#{user4.username}/projects/", user)
+
+      expect(response).to have_gitlab_http_status(200)
+      expect(response).to include_pagination_headers
+      expect(json_response).to be_an Array
+      expect(json_response.map { |project| project['id'] }).to contain_exactly(public_project.id)
+    end
+
     it 'returns projects filtered by minimal access level' do
       private_project1 = create(:project, :private, name: 'private_project1', creator_id: user4.id, namespace: user4.namespace)
       private_project2 = create(:project, :private, name: 'private_project2', creator_id: user4.id, namespace: user4.namespace)

spec/requests/api/users_spec.rb

 require 'spec_helper'
 describe API::Users do
-  let(:user)  { create(:user) }
+  let(:user)  { create(:user, username: 'user.with.dot') }
   let(:admin) { create(:admin) }
   let(:key) { create(:key, user: user) }
   let(:gpg_key) { create(:gpg_key, user: user) }