require 'spec_helper'

describe 'Resource Owner Password Credentials Flow not set up' do
  before do
    client_exists
    create_resource_owner
  end

  context 'with valid user credentials' do
    it 'does not issue new token' do
      expect do
        post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)
      end.to_not(change { Doorkeeper::AccessToken.count })
    end
  end
end

describe 'Resource Owner Password Credentials Flow' do
  let(:client_attributes) { {} }

  before do
    config_is_set(:grant_flows, ["password"])
    config_is_set(:resource_owner_from_credentials) { User.authenticate! params[:username], params[:password] }
    client_exists(client_attributes)
    create_resource_owner
  end

  context 'with valid user credentials' do
    context "with non-confidential/public client" do
      let(:client_attributes) { { confidential: false } }

      context "when client_secret absent" do
        it "should issue new token" do
          expect do
            post password_token_endpoint_url(client_id: @client.uid, resource_owner: @resource_owner)
          end.to change { Doorkeeper::AccessToken.count }.by(1)

          token = Doorkeeper::AccessToken.first

          expect(token.application_id).to eq @client.id
          should_have_json 'access_token', token.token
        end
      end

      context "when client_secret present" do
        it "should issue new token" do
          expect do
            post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)
          end.to change { Doorkeeper::AccessToken.count }.by(1)

          token = Doorkeeper::AccessToken.first

          expect(token.application_id).to eq @client.id
          should_have_json 'access_token', token.token
        end

        context "when client_secret incorrect" do
          it "should not issue new token" do
            expect do
              post password_token_endpoint_url(client_id: @client.uid, client_secret: 'foobar', resource_owner: @resource_owner)
            end.not_to(change { Doorkeeper::AccessToken.count })

            expect(response).not_to be_ok
          end
        end
      end
    end

    context "with confidential/private client" do
      it "should issue new token" do
        expect do
          post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)
        end.to change { Doorkeeper::AccessToken.count }.by(1)

        token = Doorkeeper::AccessToken.first

        expect(token.application_id).to eq @client.id
        should_have_json 'access_token', token.token
      end

      context "when client_secret absent" do
        it "should not issue new token" do
          expect do
            post password_token_endpoint_url(client_id: @client.uid, resource_owner: @resource_owner)
          end.not_to(change { Doorkeeper::AccessToken.count })

          expect(response).not_to be_ok
        end
      end
    end

    it 'should issue new token without client credentials' do
      expect do
        post password_token_endpoint_url(resource_owner: @resource_owner)
      end.to(change { Doorkeeper::AccessToken.count }.by(1))

      token = Doorkeeper::AccessToken.first

      expect(token.application_id).to be_nil
      should_have_json 'access_token', token.token
    end

    it 'should issue a refresh token if enabled' do
      config_is_set(:refresh_token_enabled, true)

      post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)

      token = Doorkeeper::AccessToken.first

      should_have_json 'refresh_token', token.refresh_token
    end

    it 'should return the same token if it is still accessible' do
      allow(Doorkeeper.configuration).to receive(:reuse_access_token).and_return(true)

      client_is_authorized(@client, @resource_owner)

      post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)

      expect(Doorkeeper::AccessToken.count).to be(1)
      should_have_json 'access_token', Doorkeeper::AccessToken.first.token
    end

    context 'with valid, default scope' do
      before do
        default_scopes_exist :public
      end

      it 'should issue new token' do
        expect do
          post password_token_endpoint_url(client: @client, resource_owner: @resource_owner, scope: 'public')
        end.to change { Doorkeeper::AccessToken.count }.by(1)

        token = Doorkeeper::AccessToken.first

        expect(token.application_id).to eq @client.id
        should_have_json 'access_token', token.token
        should_have_json 'scope', 'public'
      end
    end
  end

  context 'when application scopes are present and differs from configured default scopes and no scope is passed' do
    before do
      default_scopes_exist :public
      @client.update_attributes(scopes: 'abc')
    end

    it 'issues new token without any scope' do
      expect do
      post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)
      end.to change { Doorkeeper::AccessToken.count }.by(1)

      token = Doorkeeper::AccessToken.first

      expect(token.application_id).to eq @client.id
      expect(token.scopes).to be_empty
      should_have_json 'access_token', token.token
      should_not_have_json 'scope'
    end
  end

  context 'when application scopes contain some of the default scopes and no scope is passed' do
    before do
      @client.update_attributes(scopes: 'read write public')
    end

    it 'issues new token with one default scope that are present in application scopes' do
      default_scopes_exist :public, :admin

      expect do
        post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)
      end.to change { Doorkeeper::AccessToken.count }.by(1)

      token = Doorkeeper::AccessToken.first

      expect(token.application_id).to eq @client.id
      should_have_json 'access_token', token.token
      should_have_json 'scope', 'public'
    end

    it 'issues new token with multiple default scopes that are present in application scopes' do
      default_scopes_exist :public, :read, :update

      expect do
        post password_token_endpoint_url(client: @client, resource_owner: @resource_owner)
      end.to change { Doorkeeper::AccessToken.count }.by(1)

      token = Doorkeeper::AccessToken.first

      expect(token.application_id).to eq @client.id
      should_have_json 'access_token', token.token
      should_have_json 'scope', 'public read'
    end
  end

  context 'with invalid scopes' do
    subject do
      post password_token_endpoint_url(client: @client,
                                       resource_owner: @resource_owner,
                                       scope: 'random')
    end

    it 'should not issue new token' do
      expect { subject }.to_not(change { Doorkeeper::AccessToken.count })
    end

    it 'should return invalid_scope error' do
      subject
      should_have_json 'error', 'invalid_scope'
      should_have_json 'error_description', translated_error_message(:invalid_scope)
      should_not_have_json 'access_token'

      expect(response.status).to eq(401)
    end
  end

  context 'with invalid user credentials' do
    it 'should not issue new token with bad password' do
      expect do
        post password_token_endpoint_url(client: @client,
                                         resource_owner_username: @resource_owner.name,
                                         resource_owner_password: 'wrongpassword')
      end.to_not(change { Doorkeeper::AccessToken.count })
    end

    it 'should not issue new token without credentials' do
      expect do
        post password_token_endpoint_url(client: @client)
      end.to_not(change { Doorkeeper::AccessToken.count })
    end
  end

  context 'with invalid confidential client credentials' do
    it 'should not issue new token with bad client credentials' do
      expect do
        post password_token_endpoint_url(client_id: @client.uid,
                                         client_secret: 'bad_secret',
                                         resource_owner: @resource_owner)
      end.to_not(change { Doorkeeper::AccessToken.count })
    end
  end

  context 'with invalid public client id' do
    it 'should not issue new token with bad client id' do
      expect do
        post password_token_endpoint_url(client_id: 'bad_id', resource_owner: @resource_owner)
      end.to_not(change { Doorkeeper::AccessToken.count })
    end
  end
end