gitlab-org--gitlab-foss/app/controllers/application_controller.rb
2018-12-16 10:48:41 +01:00

491 lines
14 KiB
Ruby

# frozen_string_literal: true
require 'gon'
require 'fogbugz'
class ApplicationController < ActionController::Base
include Gitlab::GonHelper
include GitlabRoutingHelper
include PageLayoutHelper
include SafeParamsHelper
include WorkhorseHelper
include EnforcesTwoFactorAuthentication
include WithPerformanceBar
include SessionlessAuthentication
before_action :authenticate_user!
before_action :enforce_terms!, if: :should_enforce_terms?
before_action :validate_user_service_ticket!
before_action :check_password_expiration
before_action :ldap_security_check
before_action :sentry_context
before_action :default_headers
before_action :add_gon_variables, unless: [:peek_request?, :json_request?]
before_action :configure_permitted_parameters, if: :devise_controller?
before_action :require_email, unless: :devise_controller?
before_action :set_usage_stats_consent_flag
before_action :check_impersonation_availability
around_action :set_locale
after_action :set_page_title_header, if: :json_request?
after_action :limit_unauthenticated_session_times
protect_from_forgery with: :exception, prepend: true
helper_method :can?
helper_method :import_sources_enabled?, :github_import_enabled?,
:gitea_import_enabled?, :github_import_configured?,
:gitlab_import_enabled?, :gitlab_import_configured?,
:bitbucket_import_enabled?, :bitbucket_import_configured?,
:bitbucket_server_import_enabled?,
:google_code_import_enabled?, :fogbugz_import_enabled?,
:git_import_enabled?, :gitlab_project_import_enabled?,
:manifest_import_enabled?
DEFAULT_GITLAB_CACHE_CONTROL = "#{ActionDispatch::Http::Cache::Response::DEFAULT_CACHE_CONTROL}, no-store".freeze
rescue_from Encoding::CompatibilityError do |exception|
log_exception(exception)
render "errors/encoding", layout: "errors", status: 500
end
rescue_from ActiveRecord::RecordNotFound do |exception|
log_exception(exception)
render_404
end
rescue_from(ActionController::UnknownFormat) do
render_404
end
rescue_from Gitlab::Access::AccessDeniedError do |exception|
render_403
end
rescue_from Gitlab::Auth::TooManyIps do |e|
head :forbidden, retry_after: Gitlab::Auth::UniqueIpsLimiter.config.unique_ips_limit_time_window
end
rescue_from GRPC::Unavailable, Gitlab::Git::CommandError do |exception|
log_exception(exception)
headers['Retry-After'] = exception.retry_after if exception.respond_to?(:retry_after)
render_503
end
def redirect_back_or_default(default: root_path, options: {})
redirect_to request.referer.present? ? :back : default, options
end
def not_found
render_404
end
def route_not_found
if current_user
not_found
else
authenticate_user!
end
end
# By default, all sessions are given the same expiration time configured in
# the session store (e.g. 1 week). However, unauthenticated users can
# generate a lot of sessions, primarily for CSRF verification. It makes
# sense to reduce the TTL for unauthenticated to something much lower than
# the default (e.g. 1 hour) to limit Redis memory. In addition, Rails
# creates a new session after login, so the short TTL doesn't even need to
# be extended.
def limit_unauthenticated_session_times
return if current_user
# Rack sets this header, but not all tests may have it: https://github.com/rack/rack/blob/fdcd03a3c5a1c51d1f96fc97f9dfa1a9deac0c77/lib/rack/session/abstract/id.rb#L251-L259
return unless request.env['rack.session.options']
# This works because Rack uses these options every time a request is handled:
# https://github.com/rack/rack/blob/fdcd03a3c5a1c51d1f96fc97f9dfa1a9deac0c77/lib/rack/session/abstract/id.rb#L342
request.env['rack.session.options'][:expire_after] = Settings.gitlab['unauthenticated_session_expire_delay']
end
def render(*args)
super.tap do
# Set a header for custom error pages to prevent them from being intercepted by gitlab-workhorse
if response.content_type == 'text/html' && (400..599).cover?(response.status)
response.headers['X-GitLab-Custom-Error'] = '1'
end
end
end
protected
def append_info_to_payload(payload)
super
payload[:ua] = request.env["HTTP_USER_AGENT"]
payload[:remote_ip] = request.remote_ip
payload[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
logged_user = auth_user
if logged_user.present?
payload[:user_id] = logged_user.try(:id)
payload[:username] = logged_user.try(:username)
end
if response.status == 422 && response.body.present? && response.content_type == 'application/json'.freeze
payload[:response] = response.body
end
end
##
# Controllers such as GitHttpController may use alternative methods
# (e.g. tokens) to authenticate the user, whereas Devise sets current_user.
#
def auth_user
if user_signed_in?
current_user
else
try(:authenticated_user)
end
end
def log_exception(exception)
Gitlab::Sentry.track_acceptable_exception(exception)
backtrace_cleaner = request.env["action_dispatch.backtrace_cleaner"]
application_trace = ActionDispatch::ExceptionWrapper.new(backtrace_cleaner, exception).application_trace
application_trace.map! { |t| " #{t}\n" }
logger.error "\n#{exception.class.name} (#{exception.message}):\n#{application_trace.join}"
end
def after_sign_in_path_for(resource)
stored_location_for(:redirect) || stored_location_for(resource) || root_path
end
def after_sign_out_path_for(resource)
Gitlab::CurrentSettings.after_sign_out_path.presence || new_user_session_path
end
def can?(object, action, subject = :global)
Ability.allowed?(object, action, subject)
end
def access_denied!(message = nil, status = nil)
# If we display a custom access denied message to the user, we don't want to
# hide existence of the resource, rather tell them they cannot access it using
# the provided message
status ||= message.present? ? :forbidden : :not_found
respond_to do |format|
format.any { head status }
format.html do
render "errors/access_denied",
layout: "errors",
status: status,
locals: { message: message }
end
end
end
def git_not_found!
render "errors/git_not_found.html", layout: "errors", status: 404
end
def render_403
respond_to do |format|
format.any { head :forbidden }
format.html { render "errors/access_denied", layout: "errors", status: 403 }
end
end
def render_404
respond_to do |format|
format.html { render "errors/not_found", layout: "errors", status: 404 }
# Prevent the Rails CSRF protector from thinking a missing .js file is a JavaScript file
format.js { render json: '', status: :not_found, content_type: 'application/json' }
format.any { head :not_found }
end
end
def respond_422
head :unprocessable_entity
end
def render_503
respond_to do |format|
format.html do
render(
file: Rails.root.join("public", "503"),
layout: false,
status: :service_unavailable
)
end
format.any { head :service_unavailable }
end
end
def no_cache_headers
response.headers["Cache-Control"] = "no-cache, no-store, max-age=0, must-revalidate"
response.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Fri, 01 Jan 1990 00:00:00 GMT"
end
def default_headers
headers['X-Frame-Options'] = 'DENY'
headers['X-XSS-Protection'] = '1; mode=block'
headers['X-UA-Compatible'] = 'IE=edge'
headers['X-Content-Type-Options'] = 'nosniff'
if current_user
# Adds `no-store` to the DEFAULT_CACHE_CONTROL, to prevent security
# concerns due to caching private data.
headers['Cache-Control'] = DEFAULT_GITLAB_CACHE_CONTROL
headers["Pragma"] = "no-cache" # HTTP 1.0 compatibility
end
end
def validate_user_service_ticket!
return unless signed_in? && session[:service_tickets]
valid = session[:service_tickets].all? do |provider, ticket|
Gitlab::Auth::OAuth::Session.valid?(provider, ticket)
end
unless valid
session[:service_tickets] = nil
sign_out current_user
redirect_to new_user_session_path
end
end
def check_password_expiration
return if session[:impersonator_id] || !current_user&.allow_password_authentication?
password_expires_at = current_user&.password_expires_at
if password_expires_at && password_expires_at < Time.now
return redirect_to new_profile_password_path
end
end
def ldap_security_check
if current_user && current_user.requires_ldap_check?
return unless current_user.try_obtain_ldap_lease
unless Gitlab::Auth::LDAP::Access.allowed?(current_user)
sign_out current_user
flash[:alert] = "Access denied for your LDAP account."
redirect_to new_user_session_path
end
end
end
def event_filter
@event_filter ||=
EventFilter.new(params[:event_filter].presence || cookies[:event_filter]).tap do |new_event_filter|
cookies[:event_filter] = new_event_filter.filter
end
end
# JSON for infinite scroll via Pager object
def pager_json(partial, count, locals = {})
html = render_to_string(
partial,
locals: locals,
layout: false,
formats: [:html]
)
render json: {
html: html,
count: count
}
end
def view_to_html_string(partial, locals = {})
render_to_string(
partial,
locals: locals,
layout: false,
formats: [:html]
)
end
def configure_permitted_parameters
devise_parameter_sanitizer.permit(:sign_in, keys: [:username, :email, :password, :login, :remember_me, :otp_attempt])
end
def hexdigest(string)
Digest::SHA1.hexdigest string
end
def require_email
if current_user && current_user.temp_oauth_email? && session[:impersonator_id].nil?
return redirect_to profile_path, notice: 'Please complete your profile with email address'
end
end
def enforce_terms!
return unless current_user
return if current_user.terms_accepted?
message = _("Please accept the Terms of Service before continuing.")
if sessionless_user?
access_denied!(message)
else
# Redirect to the destination if the request is a get.
# Redirect to the source if it was a post, so the user can re-submit after
# accepting the terms.
redirect_path = if request.get?
request.fullpath
else
URI(request.referer).path if request.referer
end
flash[:notice] = message
redirect_to terms_path(redirect: redirect_path), status: :found
end
end
def import_sources_enabled?
!Gitlab::CurrentSettings.import_sources.empty?
end
def bitbucket_server_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('bitbucket_server')
end
def github_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('github')
end
def gitea_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('gitea')
end
def github_import_configured?
Gitlab::Auth::OAuth::Provider.enabled?(:github)
end
def gitlab_import_enabled?
request.host != 'gitlab.com' && Gitlab::CurrentSettings.import_sources.include?('gitlab')
end
def gitlab_import_configured?
Gitlab::Auth::OAuth::Provider.enabled?(:gitlab)
end
def bitbucket_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('bitbucket')
end
def bitbucket_import_configured?
Gitlab::Auth::OAuth::Provider.enabled?(:bitbucket)
end
def google_code_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('google_code')
end
def fogbugz_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('fogbugz')
end
def git_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('git')
end
def gitlab_project_import_enabled?
Gitlab::CurrentSettings.import_sources.include?('gitlab_project')
end
def manifest_import_enabled?
Group.supports_nested_groups? && Gitlab::CurrentSettings.import_sources.include?('manifest')
end
# U2F (universal 2nd factor) devices need a unique identifier for the application
# to perform authentication.
# https://developers.yubico.com/U2F/App_ID.html
def u2f_app_id
request.base_url
end
def set_locale(&block)
Gitlab::I18n.with_user_locale(current_user, &block)
end
def set_page_title_header
# Per https://tools.ietf.org/html/rfc5987, headers need to be ISO-8859-1, not UTF-8
response.headers['Page-Title'] = URI.escape(page_title('GitLab'))
end
def peek_request?
request.path.start_with?('/-/peek')
end
def json_request?
request.format.json?
end
def should_enforce_terms?
return false unless Gitlab::CurrentSettings.current_application_settings.enforce_terms
!(peek_request? || devise_controller?)
end
def set_usage_stats_consent_flag
return unless current_user
return if sessionless_user?
return if session.has_key?(:ask_for_usage_stats_consent)
session[:ask_for_usage_stats_consent] = current_user.requires_usage_stats_consent?
if session[:ask_for_usage_stats_consent]
disable_usage_stats
end
end
def disable_usage_stats
application_setting_params = {
usage_ping_enabled: false,
version_check_enabled: false,
skip_usage_stats_user: true
}
settings = Gitlab::CurrentSettings.current_application_settings
ApplicationSettings::UpdateService
.new(settings, current_user, application_setting_params)
.execute
end
def check_impersonation_availability
return unless session[:impersonator_id]
unless Gitlab.config.gitlab.impersonation_enabled
stop_impersonation
access_denied! _('Impersonation has been disabled')
end
end
def stop_impersonation
impersonated_user = current_user
Gitlab::AppLogger.info("User #{impersonator.username} has stopped impersonating #{impersonated_user.username}")
warden.set_user(impersonator, scope: :user)
session[:impersonator_id] = nil
impersonated_user
end
def impersonator
@impersonator ||= User.find(session[:impersonator_id]) if session[:impersonator_id]
end
def sentry_context
Gitlab::Sentry.context(current_user)
end
end