157 lines
4.2 KiB
Ruby
157 lines
4.2 KiB
Ruby
# frozen_string_literal: true
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module Repositories
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class GitHttpClientController < Repositories::ApplicationController
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include ActionController::HttpAuthentication::Basic
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include KerberosHelper
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include Gitlab::Utils::StrongMemoize
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attr_reader :authentication_result, :redirected_path
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delegate :authentication_abilities, to: :authentication_result, allow_nil: true
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delegate :type, to: :authentication_result, allow_nil: true, prefix: :auth_result
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# Git clients will not know what authenticity token to send along
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skip_around_action :set_session_storage
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skip_before_action :verify_authenticity_token
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prepend_before_action :authenticate_user, :parse_repo_path
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skip_around_action :sessionless_bypass_admin_mode!
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around_action :bypass_admin_mode!, if: :authenticated_user
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feature_category :source_code_management
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def authenticated_user
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authentication_result&.user || authentication_result&.deploy_token
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end
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private
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def user
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authenticated_user
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end
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def download_request?
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raise NotImplementedError
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end
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def upload_request?
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raise NotImplementedError
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end
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def authenticate_user
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@authentication_result = Gitlab::Auth::Result::EMPTY
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if allow_basic_auth? && basic_auth_provided?
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login, password = user_name_and_password(request)
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if handle_basic_authentication(login, password)
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return # Allow access
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end
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elsif allow_kerberos_auth? && spnego_provided?
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kerberos_user = find_kerberos_user
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if kerberos_user
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@authentication_result = Gitlab::Auth::Result.new(
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kerberos_user, nil, :kerberos, Gitlab::Auth.full_authentication_abilities)
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send_final_spnego_response
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return # Allow access
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end
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elsif http_download_allowed?
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@authentication_result = Gitlab::Auth::Result.new(nil, project, :none, [:download_code])
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return # Allow access
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end
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send_challenges
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render_access_denied
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rescue Gitlab::Auth::MissingPersonalAccessTokenError
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render_access_denied
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end
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def render_access_denied
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help_page = help_page_url(
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'topics/git/troubleshooting_git',
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anchor: 'error-on-git-fetch-http-basic-access-denied'
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)
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render(
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plain: format(_("HTTP Basic: Access denied. The provided password or token is incorrect or your account has 2FA enabled and you must use a personal access token instead of a password. See %{help_page_url}"), help_page_url: help_page),
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status: :unauthorized
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)
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end
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def basic_auth_provided?
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has_basic_credentials?(request)
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end
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def send_challenges
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challenges = []
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challenges << 'Basic realm="GitLab"' if allow_basic_auth?
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challenges << spnego_challenge if allow_kerberos_auth?
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headers['Www-Authenticate'] = challenges.join("\n") if challenges.any?
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end
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def container
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parse_repo_path unless defined?(@container)
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@container
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end
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def project
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parse_repo_path unless defined?(@project)
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@project
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end
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def repository_path
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@repository_path ||= params[:repository_path]
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end
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def parse_repo_path
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@container, @project, @repo_type, @redirected_path = Gitlab::RepoPath.parse(repository_path)
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end
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def repository
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strong_memoize(:repository) do
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repo_type.repository_for(container)
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end
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end
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def repo_type
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parse_repo_path unless defined?(@repo_type)
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@repo_type
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end
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def handle_basic_authentication(login, password)
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@authentication_result = Gitlab::Auth.find_for_git_client(
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login, password, project: project, ip: request.ip)
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@authentication_result.success?
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end
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def ci?
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authentication_result.ci?(project)
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end
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def http_download_allowed?
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Gitlab::ProtocolAccess.allowed?('http') &&
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download_request? &&
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container &&
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Guest.can?(repo_type.guest_read_ability, container)
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end
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def bypass_admin_mode!(&block)
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return yield unless Gitlab::CurrentSettings.admin_mode
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Gitlab::Auth::CurrentUserMode.bypass_session!(authenticated_user.id, &block)
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end
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end
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end
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Repositories::GitHttpClientController.prepend_mod_with('Repositories::GitHttpClientController')
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