# Redmine - project management software
# Copyright (C) 2006-2017  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require File.expand_path('../../../test_helper', __FILE__)

class Redmine::ApiTest::AuthenticationTest < Redmine::ApiTest::Base
  fixtures :users

  def teardown
    User.current = nil
  end

  def test_api_should_deny_without_credentials
    get '/users/current.xml'
    assert_response 401
    assert_equal User.anonymous, User.current
    assert response.headers.has_key?('WWW-Authenticate')
  end

  def test_api_should_accept_http_basic_auth_using_username_and_password
    user = User.generate! do |user|
      user.password = 'my_password'
    end
    get '/users/current.xml', :headers => credentials(user.login, 'my_password')
    assert_response 200
    assert_equal user, User.current
  end

  def test_api_should_deny_http_basic_auth_using_username_and_wrong_password
    user = User.generate! do |user|
      user.password = 'my_password'
    end
    get '/users/current.xml', :headers => credentials(user.login, 'wrong_password')
    assert_response 401
    assert_equal User.anonymous, User.current
  end

  def test_api_should_accept_http_basic_auth_using_api_key
    user = User.generate!
    token = Token.create!(:user => user, :action => 'api')
    get '/users/current.xml', :headers => credentials(token.value, 'X')
    assert_response 200
    assert_equal user, User.current
  end

  def test_api_should_deny_http_basic_auth_using_wrong_api_key
    user = User.generate!
    token = Token.create!(:user => user, :action => 'feeds') # not the API key
    get '/users/current.xml', :headers => credentials(token.value, 'X')
    assert_response 401
    assert_equal User.anonymous, User.current
  end

  def test_api_should_accept_auth_using_api_key_as_parameter
    user = User.generate!
    token = Token.create!(:user => user, :action => 'api')
    get "/users/current.xml?key=#{token.value}"
    assert_response 200
    assert_equal user, User.current
  end

  def test_api_should_deny_auth_using_wrong_api_key_as_parameter
    user = User.generate!
    token = Token.create!(:user => user, :action => 'feeds') # not the API key
    get "/users/current.xml?key=#{token.value}"
    assert_response 401
    assert_equal User.anonymous, User.current
  end

  def test_api_should_accept_auth_using_api_key_as_request_header
    user = User.generate!
    token = Token.create!(:user => user, :action => 'api')
    get "/users/current.xml", :headers => {'X-Redmine-API-Key' => token.value.to_s}
    assert_response 200
    assert_equal user, User.current
  end

  def test_api_should_deny_auth_using_wrong_api_key_as_request_header
    user = User.generate!
    token = Token.create!(:user => user, :action => 'feeds') # not the API key
    get "/users/current.xml", :headers => {'X-Redmine-API-Key' => token.value.to_s}
    assert_response 401
    assert_equal User.anonymous, User.current
  end

  def test_api_should_trigger_basic_http_auth_with_basic_authorization_header
    ApplicationController.any_instance.expects(:authenticate_with_http_basic).once
    get '/users/current.xml', :headers => credentials('jsmith')
    assert_response 401
  end

  def test_api_should_not_trigger_basic_http_auth_with_non_basic_authorization_header
    ApplicationController.any_instance.expects(:authenticate_with_http_basic).never
    get '/users/current.xml', :headers => {'HTTP_AUTHORIZATION' => 'Digest foo bar'}
    assert_response 401
  end

  def test_invalid_utf8_credentials_should_not_trigger_an_error
    invalid_utf8 = "\x82".force_encoding('UTF-8')
    assert !invalid_utf8.valid_encoding?
    assert_nothing_raised do
      get '/users/current.xml', :headers => credentials(invalid_utf8, "foo")
    end
  end

  def test_api_request_should_not_use_user_session
    log_user('jsmith', 'jsmith')

    get '/users/current'
    assert_response :success

    get '/users/current.json'
    assert_response 401
  end

  def test_api_should_accept_switch_user_header_for_admin_user
    user = User.find(1)
    su = User.find(4)

    get '/users/current', :headers => {'X-Redmine-API-Key' => user.api_key, 'X-Redmine-Switch-User' => su.login}
    assert_response :success
    assert_select 'h2', :text => su.name
    assert_equal su, User.current
  end

  def test_api_should_respond_with_412_when_trying_to_switch_to_a_invalid_user
    get '/users/current', :headers => {'X-Redmine-API-Key' => User.find(1).api_key, 'X-Redmine-Switch-User' => 'foobar'}
    assert_response 412
  end

  def test_api_should_respond_with_412_when_trying_to_switch_to_a_locked_user
    user = User.find(5)
    assert user.locked?

    get '/users/current', :headers => {'X-Redmine-API-Key' => User.find(1).api_key, 'X-Redmine-Switch-User' => user.login}
    assert_response 412
  end

  def test_api_should_not_accept_switch_user_header_for_non_admin_user
    user = User.find(2)
    su = User.find(4)

    get '/users/current', :headers => {'X-Redmine-API-Key' => user.api_key, 'X-Redmine-Switch-User' => su.login}
    assert_response :success
    assert_select 'h2', :text => user.name
    assert_equal user, User.current
  end
end
