465 lines
13 KiB
Ruby
465 lines
13 KiB
Ruby
module API
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module Helpers
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include Gitlab::Utils
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PRIVATE_TOKEN_HEADER = "HTTP_PRIVATE_TOKEN"
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PRIVATE_TOKEN_PARAM = :private_token
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SUDO_HEADER = "HTTP_SUDO"
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SUDO_PARAM = :sudo
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def private_token
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params[PRIVATE_TOKEN_PARAM] || env[PRIVATE_TOKEN_HEADER]
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end
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def warden
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env['warden']
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end
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# Check the Rails session for valid authentication details
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#
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# Until CSRF protection is added to the API, disallow this method for
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# state-changing endpoints
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def find_user_from_warden
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warden.try(:authenticate) if %w[GET HEAD].include?(env['REQUEST_METHOD'])
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end
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def find_user_by_private_token
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token = private_token
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return nil unless token.present?
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User.find_by_authentication_token(token) || User.find_by_personal_access_token(token)
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end
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def current_user
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@current_user ||= find_user_by_private_token
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@current_user ||= doorkeeper_guard
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@current_user ||= find_user_from_warden
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unless @current_user && Gitlab::UserAccess.new(@current_user).allowed?
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return nil
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end
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identifier = sudo_identifier()
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# If the sudo is the current user do nothing
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if identifier && !(@current_user.id == identifier || @current_user.username == identifier)
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forbidden!('Must be admin to use sudo') unless @current_user.is_admin?
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@current_user = User.by_username_or_id(identifier)
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not_found!("No user id or username for: #{identifier}") if @current_user.nil?
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end
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@current_user
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end
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def sudo_identifier
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identifier ||= params[SUDO_PARAM] || env[SUDO_HEADER]
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# Regex for integers
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if !!(identifier =~ /\A[0-9]+\z/)
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identifier.to_i
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else
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identifier
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end
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end
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def user_project
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@project ||= find_project(params[:id])
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end
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def available_labels
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@available_labels ||= LabelsFinder.new(current_user, project_id: user_project.id).execute
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end
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def find_project(id)
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project = Project.find_with_namespace(id) || Project.find_by(id: id)
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if can?(current_user, :read_project, project)
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project
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else
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not_found!('Project')
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end
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end
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def project_service
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@project_service ||= begin
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underscored_service = params[:service_slug].underscore
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if Service.available_services_names.include?(underscored_service)
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user_project.build_missing_services
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service_method = "#{underscored_service}_service"
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send_service(service_method)
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end
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end
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@project_service || not_found!("Service")
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end
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def send_service(service_method)
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user_project.send(service_method)
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end
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def service_attributes
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@service_attributes ||= project_service.fields.inject([]) do |arr, hash|
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arr << hash[:name].to_sym
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end
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end
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def find_group(id)
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group = Group.find_by(path: id) || Group.find_by(id: id)
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if can?(current_user, :read_group, group)
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group
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else
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not_found!('Group')
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end
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end
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def find_project_label(id)
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label = available_labels.find_by_id(id) || available_labels.find_by_title(id)
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label || not_found!('Label')
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end
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def find_project_issue(id)
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issue = user_project.issues.find(id)
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not_found! unless can?(current_user, :read_issue, issue)
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issue
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end
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def paginate(relation)
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relation.page(params[:page]).per(params[:per_page].to_i).tap do |data|
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add_pagination_headers(data)
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end
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end
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def authenticate!
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unauthorized! unless current_user
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end
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def authenticate_by_gitlab_shell_token!
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input = params['secret_token'].try(:chomp)
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unless Devise.secure_compare(secret_token, input)
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unauthorized!
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end
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end
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def authenticated_as_admin!
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forbidden! unless current_user.is_admin?
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end
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def authorize!(action, subject = nil)
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forbidden! unless can?(current_user, action, subject)
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end
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def authorize_push_project
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authorize! :push_code, user_project
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end
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def authorize_admin_project
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authorize! :admin_project, user_project
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end
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def require_gitlab_workhorse!
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unless env['HTTP_GITLAB_WORKHORSE'].present?
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forbidden!('Request should be executed via GitLab Workhorse')
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end
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end
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def can?(object, action, subject)
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Ability.allowed?(object, action, subject)
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end
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# Checks the occurrences of required attributes, each attribute must be present in the params hash
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# or a Bad Request error is invoked.
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#
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# Parameters:
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# keys (required) - A hash consisting of keys that must be present
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def required_attributes!(keys)
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keys.each do |key|
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bad_request!(key) unless params[key].present?
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end
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end
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def attributes_for_keys(keys, custom_params = nil)
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params_hash = custom_params || params
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attrs = {}
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keys.each do |key|
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if params_hash[key].present? or (params_hash.has_key?(key) and params_hash[key] == false)
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attrs[key] = params_hash[key]
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end
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end
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ActionController::Parameters.new(attrs).permit!
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end
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# Helper method for validating all labels against its names
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def validate_label_params(params)
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errors = {}
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params[:labels].to_s.split(',').each do |label_name|
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label = available_labels.find_or_initialize_by(title: label_name.strip)
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next if label.valid?
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errors[label.title] = label.errors
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end
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errors
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end
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# Checks the occurrences of datetime attributes, each attribute if present in the params hash must be in ISO 8601
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# format (YYYY-MM-DDTHH:MM:SSZ) or a Bad Request error is invoked.
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#
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# Parameters:
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# keys (required) - An array consisting of elements that must be parseable as dates from the params hash
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def datetime_attributes!(*keys)
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keys.each do |key|
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begin
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params[key] = Time.xmlschema(params[key]) if params[key].present?
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rescue ArgumentError
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message = "\"" + key.to_s + "\" must be a timestamp in ISO 8601 format: YYYY-MM-DDTHH:MM:SSZ"
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render_api_error!(message, 400)
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end
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end
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end
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def issuable_order_by
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if params["order_by"] == 'updated_at'
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'updated_at'
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else
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'created_at'
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end
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end
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def issuable_sort
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if params["sort"] == 'asc'
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:asc
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else
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:desc
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end
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end
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def filter_by_iid(items, iid)
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items.where(iid: iid)
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end
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# error helpers
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def forbidden!(reason = nil)
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message = ['403 Forbidden']
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message << " - #{reason}" if reason
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render_api_error!(message.join(' '), 403)
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end
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def bad_request!(attribute)
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message = ["400 (Bad request)"]
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message << "\"" + attribute.to_s + "\" not given"
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render_api_error!(message.join(' '), 400)
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end
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def not_found!(resource = nil)
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message = ["404"]
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message << resource if resource
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message << "Not Found"
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render_api_error!(message.join(' '), 404)
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end
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def unauthorized!
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render_api_error!('401 Unauthorized', 401)
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end
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def not_allowed!
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render_api_error!('405 Method Not Allowed', 405)
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end
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def conflict!(message = nil)
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render_api_error!(message || '409 Conflict', 409)
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end
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def file_to_large!
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render_api_error!('413 Request Entity Too Large', 413)
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end
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def not_modified!
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render_api_error!('304 Not Modified', 304)
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end
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def no_content!
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render_api_error!('204 No Content', 204)
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end
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def render_validation_error!(model)
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if model.errors.any?
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render_api_error!(model.errors.messages || '400 Bad Request', 400)
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end
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end
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def render_api_error!(message, status)
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error!({ 'message' => message }, status)
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end
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def handle_api_exception(exception)
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if sentry_enabled? && report_exception?(exception)
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define_params_for_grape_middleware
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sentry_context
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Raven.capture_exception(exception)
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end
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# lifted from https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb#L60
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trace = exception.backtrace
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message = "\n#{exception.class} (#{exception.message}):\n"
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message << exception.annoted_source_code.to_s if exception.respond_to?(:annoted_source_code)
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message << " " << trace.join("\n ")
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API.logger.add Logger::FATAL, message
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rack_response({ 'message' => '500 Internal Server Error' }.to_json, 500)
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end
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# Projects helpers
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def filter_projects(projects)
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# If the archived parameter is passed, limit results accordingly
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if params[:archived].present?
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projects = projects.where(archived: to_boolean(params[:archived]))
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end
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if params[:search].present?
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projects = projects.search(params[:search])
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end
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if params[:visibility].present?
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projects = projects.search_by_visibility(params[:visibility])
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end
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projects.reorder(project_order_by => project_sort)
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end
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def project_order_by
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order_fields = %w(id name path created_at updated_at last_activity_at)
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if order_fields.include?(params['order_by'])
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params['order_by']
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else
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'created_at'
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end
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end
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def project_sort
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if params["sort"] == 'asc'
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:asc
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else
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:desc
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end
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end
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# file helpers
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def uploaded_file(field, uploads_path)
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if params[field]
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bad_request!("#{field} is not a file") unless params[field].respond_to?(:filename)
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return params[field]
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end
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return nil unless params["#{field}.path"] && params["#{field}.name"]
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# sanitize file paths
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# this requires all paths to exist
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required_attributes! %W(#{field}.path)
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uploads_path = File.realpath(uploads_path)
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file_path = File.realpath(params["#{field}.path"])
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bad_request!('Bad file path') unless file_path.start_with?(uploads_path)
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UploadedFile.new(
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file_path,
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params["#{field}.name"],
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params["#{field}.type"] || 'application/octet-stream',
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)
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end
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def present_file!(path, filename, content_type = 'application/octet-stream')
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filename ||= File.basename(path)
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header['Content-Disposition'] = "attachment; filename=#{filename}"
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header['Content-Transfer-Encoding'] = 'binary'
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content_type content_type
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# Support download acceleration
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case headers['X-Sendfile-Type']
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when 'X-Sendfile'
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header['X-Sendfile'] = path
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body
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else
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file FileStreamer.new(path)
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end
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end
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private
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def add_pagination_headers(paginated_data)
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header 'X-Total', paginated_data.total_count.to_s
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header 'X-Total-Pages', paginated_data.total_pages.to_s
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header 'X-Per-Page', paginated_data.limit_value.to_s
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header 'X-Page', paginated_data.current_page.to_s
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header 'X-Next-Page', paginated_data.next_page.to_s
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header 'X-Prev-Page', paginated_data.prev_page.to_s
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header 'Link', pagination_links(paginated_data)
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end
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def pagination_links(paginated_data)
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request_url = request.url.split('?').first
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request_params = params.clone
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request_params[:per_page] = paginated_data.limit_value
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links = []
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request_params[:page] = paginated_data.current_page - 1
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links << %(<#{request_url}?#{request_params.to_query}>; rel="prev") unless paginated_data.first_page?
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request_params[:page] = paginated_data.current_page + 1
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links << %(<#{request_url}?#{request_params.to_query}>; rel="next") unless paginated_data.last_page?
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request_params[:page] = 1
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links << %(<#{request_url}?#{request_params.to_query}>; rel="first")
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request_params[:page] = paginated_data.total_pages
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links << %(<#{request_url}?#{request_params.to_query}>; rel="last")
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links.join(', ')
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end
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def secret_token
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Gitlab::Shell.secret_token
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end
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def send_git_blob(repository, blob)
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env['api.format'] = :txt
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content_type 'text/plain'
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header(*Gitlab::Workhorse.send_git_blob(repository, blob))
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end
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def send_git_archive(repository, ref:, format:)
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header(*Gitlab::Workhorse.send_git_archive(repository, ref: ref, format: format))
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end
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def issue_entity(project)
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if project.has_external_issue_tracker?
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Entities::ExternalIssue
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else
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Entities::Issue
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end
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end
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# The Grape Error Middleware only has access to env but no params. We workaround this by
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# defining a method that returns the right value.
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def define_params_for_grape_middleware
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self.define_singleton_method(:params) { Rack::Request.new(env).params.symbolize_keys }
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end
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# We could get a Grape or a standard Ruby exception. We should only report anything that
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# is clearly an error.
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def report_exception?(exception)
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return true unless exception.respond_to?(:status)
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exception.status == 500
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end
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end
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end
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