512 lines
14 KiB
Ruby
512 lines
14 KiB
Ruby
module API
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module Helpers
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include Gitlab::Utils
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include Helpers::Pagination
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SUDO_HEADER = "HTTP_SUDO".freeze
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SUDO_PARAM = :sudo
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API_USER_ENV = 'gitlab.api.user'.freeze
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def declared_params(options = {})
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options = { include_parent_namespaces: false }.merge(options)
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declared(params, options).to_h.symbolize_keys
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end
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def check_unmodified_since!(last_modified)
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if_unmodified_since = Time.parse(headers['If-Unmodified-Since']) rescue nil
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if if_unmodified_since && last_modified && last_modified > if_unmodified_since
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render_api_error!('412 Precondition Failed', 412)
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end
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end
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def destroy_conditionally!(resource, last_updated: nil)
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last_updated ||= resource.updated_at
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check_unmodified_since!(last_updated)
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status 204
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if block_given?
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yield resource
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else
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resource.destroy
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end
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end
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# rubocop:disable Gitlab/ModuleWithInstanceVariables
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# We can't rewrite this with StrongMemoize because `sudo!` would
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# actually write to `@current_user`, and `sudo?` would immediately
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# call `current_user` again which reads from `@current_user`.
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# We should rewrite this in a way that using StrongMemoize is possible
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def current_user
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return @current_user if defined?(@current_user)
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@current_user = initial_current_user
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Gitlab::I18n.locale = @current_user&.preferred_language
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sudo!
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validate_access_token!(scopes: scopes_registered_for_endpoint) unless sudo?
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save_current_user_in_env(@current_user) if @current_user
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@current_user
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end
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# rubocop:enable Gitlab/ModuleWithInstanceVariables
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def save_current_user_in_env(user)
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env[API_USER_ENV] = { user_id: user.id, username: user.username }
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end
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def sudo?
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initial_current_user != current_user
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end
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def user_namespace
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@user_namespace ||= find_namespace!(params[:id])
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end
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def user_group
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@group ||= find_group!(params[:id])
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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 wiki_page
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page = ProjectWiki.new(user_project, current_user).find_page(params[:slug])
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page || not_found!('Wiki Page')
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end
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def available_labels_for(label_parent)
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search_params =
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if label_parent.is_a?(Project)
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{ project_id: label_parent.id }
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else
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{ group_id: label_parent.id, only_group_labels: true }
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end
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LabelsFinder.new(current_user, search_params).execute
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end
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def find_user(id)
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if id =~ /^\d+$/
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User.find_by(id: id)
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else
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User.find_by(username: id)
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end
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end
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def find_project(id)
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if id =~ /^\d+$/
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Project.find_by(id: id)
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else
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Project.find_by_full_path(id)
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end
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end
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def find_project!(id)
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project = find_project(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 find_group(id)
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if id.to_s =~ /^\d+$/
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Group.find_by(id: id)
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else
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Group.find_by_full_path(id)
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end
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end
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def find_group!(id)
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group = find_group(id)
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if can?(current_user, :read_group, group)
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group
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else
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not_found!('Group')
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end
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end
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def find_namespace(id)
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if id.to_s =~ /^\d+$/
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Namespace.find_by(id: id)
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else
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Namespace.find_by_full_path(id)
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end
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end
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def find_namespace!(id)
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namespace = find_namespace(id)
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if can?(current_user, :read_namespace, namespace)
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namespace
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else
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not_found!('Namespace')
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end
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end
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def find_project_label(id)
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labels = available_labels_for(user_project)
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label = labels.find_by_id(id) || 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(iid)
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IssuesFinder.new(current_user, project_id: user_project.id).find_by!(iid: iid)
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end
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def find_project_merge_request(iid)
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MergeRequestsFinder.new(current_user, project_id: user_project.id).find_by!(iid: iid)
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end
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def find_project_snippet(id)
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finder_params = { project: user_project }
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SnippetsFinder.new(current_user, finder_params).find(id)
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end
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def find_merge_request_with_access(iid, access_level = :read_merge_request)
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merge_request = user_project.merge_requests.find_by!(iid: iid)
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authorize! access_level, merge_request
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merge_request
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end
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def find_build!(id)
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user_project.builds.find(id.to_i)
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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_non_get!
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authenticate! unless %w[GET HEAD].include?(route.request_method)
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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_with_full_private_access!
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authenticate!
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forbidden! unless current_user.full_private_access?
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end
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def authenticated_as_admin!
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authenticate!
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forbidden! unless current_user.admin?
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end
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def authorize!(action, subject = :global)
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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 authorize_read_builds!
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authorize! :read_build, user_project
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end
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def authorize_update_builds!
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authorize! :update_build, 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 require_pages_enabled!
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not_found! unless user_project.pages_available?
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end
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def require_pages_config_enabled!
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not_found! unless Gitlab.config.pages.enabled
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end
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def can?(object, action, subject = :global)
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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? || (params_hash.key?(key) && 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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def filter_by_iid(items, iid)
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items.where(iid: iid)
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end
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def filter_by_search(items, text)
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items.search(text)
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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" if attribute
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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 accepted!
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render_api_error!('202 Accepted', 202)
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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_spam_error!
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render_api_error!({ error: 'Spam detected' }, 400)
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end
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def render_api_error!(message, status)
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error!({ 'message' => message }, status, header)
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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, extra: params)
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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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response_message =
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if Rails.env.test?
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message
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else
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'500 Internal Server Error'
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end
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rack_response({ 'message' => response_message }.to_json, 500)
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end
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# project helpers
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def reorder_projects(projects)
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projects.reorder(params[:order_by] => params[:sort])
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end
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def project_finder_params
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finder_params = {}
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finder_params[:owned] = true if params[:owned].present?
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finder_params[:non_public] = true if params[:membership].present?
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finder_params[:starred] = true if params[:starred].present?
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finder_params[:visibility_level] = Gitlab::VisibilityLevel.level_value(params[:visibility]) if params[:visibility]
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finder_params[:archived] = params[:archived]
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finder_params[:search] = params[:search] if params[:search]
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finder_params[:user] = params.delete(:user) if params[:user]
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finder_params[:custom_attributes] = params[:custom_attributes] if params[:custom_attributes]
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finder_params
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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][: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 path
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end
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end
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def present_artifacts!(artifacts_file)
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return not_found! unless artifacts_file.exists?
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if artifacts_file.file_storage?
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present_file!(artifacts_file.path, artifacts_file.filename)
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else
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redirect_to(artifacts_file.url)
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end
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end
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private
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# rubocop:disable Gitlab/ModuleWithInstanceVariables
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def initial_current_user
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return @initial_current_user if defined?(@initial_current_user)
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begin
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@initial_current_user = Gitlab::Auth::UniqueIpsLimiter.limit_user! { find_current_user! }
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rescue Gitlab::Auth::UnauthorizedError
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unauthorized!
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end
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end
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# rubocop:enable Gitlab/ModuleWithInstanceVariables
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def sudo!
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return unless sudo_identifier
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unauthorized! unless initial_current_user
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unless initial_current_user.admin?
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forbidden!('Must be admin to use sudo')
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end
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unless access_token
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forbidden!('Must be authenticated using an OAuth or Personal Access Token to use sudo')
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end
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validate_access_token!(scopes: [:sudo])
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sudoed_user = find_user(sudo_identifier)
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not_found!("User with ID or username '#{sudo_identifier}'") unless sudoed_user
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@current_user = sudoed_user # rubocop:disable Gitlab/ModuleWithInstanceVariables
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end
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def sudo_identifier
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@sudo_identifier ||= params[SUDO_PARAM] || env[SUDO_HEADER]
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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 send_artifacts_entry(build, entry)
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header(*Gitlab::Workhorse.send_artifacts_entry(build, entry))
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end
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# The Grape Error Middleware only has access to `env` but not `params` nor
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# `request`. We workaround this by defining methods that returns the right
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# values.
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def define_params_for_grape_middleware
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self.define_singleton_method(:request) { Rack::Request.new(env) }
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self.define_singleton_method(:params) { request.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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