X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/7de5220090d01722d8ea06679493355eefd4636c..664aaeee381064718120862db96ebf383216fdcd:/app/controllers/application_controller.rb?ds=inline diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb index c701d8add..fc90e0be7 100644 --- a/app/controllers/application_controller.rb +++ b/app/controllers/application_controller.rb @@ -1,220 +1,357 @@ -# Filters added to this controller will be run for all controllers in the application. -# Likewise, all the methods added will be available for all controllers. class ApplicationController < ActionController::Base + require "timeout" - if OSM_STATUS == :database_readonly or OSM_STATUS == :database_offline - session :off + include SessionPersistence + + protect_from_forgery :with => :exception + + add_flash_types :warning, :error + + rescue_from CanCan::AccessDenied, :with => :deny_access + check_authorization + + rescue_from RailsParam::InvalidParameterError, :with => :invalid_parameter + + before_action :fetch_body + + attr_accessor :current_user, :oauth_token + + helper_method :current_user + helper_method :oauth_token + + def self.allow_thirdparty_images(**options) + content_security_policy(options) do |policy| + policy.img_src("*", :data) + end end - def authorize_web - if session[:user] - @user = User.find(session[:user], :conditions => {:visible => true}) - elsif session[:token] - @user = User.authenticate(:token => session[:token]) - session[:user] = @user.id + def self.allow_social_login(**options) + content_security_policy(options) do |policy| + policy.form_action(*policy.form_action, "accounts.google.com", "*.facebook.com", "login.microsoftonline.com", "github.com", "meta.wikimedia.org") end - rescue Exception => ex - logger.info("Exception authorizing user: #{ex.to_s}") - @user = nil end - def require_user - redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user + def self.allow_all_form_action(**options) + content_security_policy(options) do |policy| + policy.form_action(nil) + end end - ## - # requires the user to be logged in by the token or HTTP methods, or have an - # OAuth token with the right capability. this method is a bit of a pain to call - # directly, since it's cumbersome to call filters with arguments in rails. to - # make it easier to read and write the code, there are some utility methods - # below. - def require_capability(cap) - # when the current token is nil, it means the user logged in with a different - # method, otherwise an OAuth token was used, which has to be checked. - unless current_token.nil? - unless current_token.read_attribute(cap) - render :text => "OAuth token doesn't have that capability.", :status => :forbidden - return false + private + + def authorize_web + if session[:user] + self.current_user = User.find_by(:id => session[:user], :status => %w[active confirmed suspended]) + + if session[:fingerprint] && + session[:fingerprint] != current_user.fingerprint + reset_session + self.current_user = nil + elsif current_user.status == "suspended" + session.delete(:user) + session_expires_automatically + + redirect_to :controller => "users", :action => "suspended" + + # don't allow access to any auth-requiring part of the site unless + # the new CTs have been seen (and accept/decline chosen). + elsif !current_user.terms_seen && flash[:skip_terms].nil? + flash[:notice] = t "users.terms.you need to accept or decline" + if params[:referer] + redirect_to :controller => "users", :action => "terms", :referer => params[:referer] + else + redirect_to :controller => "users", :action => "terms", :referer => request.fullpath + end end end - end - # Utility methods to make the controller filter methods easier to read and write. - def require_allow_read_prefs - require_capability(:allow_read_prefs) - end - def require_allow_write_prefs - require_capability(:allow_write_prefs) - end - def require_allow_write_diary - require_capability(:allow_write_diary) + session[:fingerprint] = current_user.fingerprint if current_user && session[:fingerprint].nil? + rescue StandardError => e + logger.info("Exception authorizing user: #{e}") + reset_session + self.current_user = nil end - def require_allow_write_api - require_capability(:allow_write_api) - end - def require_allow_read_gpx - require_capability(:allow_read_gpx) + + def require_user + unless current_user + if request.get? + redirect_to login_path(:referer => request.fullpath) + else + head :forbidden + end + end end - def require_allow_write_gpx - require_capability(:allow_write_gpx) + + def require_oauth + @oauth_token = current_user.oauth_token(Settings.oauth_application) if current_user && Settings.key?(:oauth_application) end ## - # sets up the @user object for use by other methods. this is mostly called - # from the authorize method, but can be called elsewhere if authorisation - # is optional. - def setup_user_auth - # try and setup using OAuth - if oauthenticate - @user = current_token.user - else - username, passwd = get_auth_data # parse from headers - # authenticate per-scheme - if username.nil? - @user = nil # no authentication provided - perhaps first connect (client should retry after 401) - elsif username == 'token' - @user = User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth + # require the user to have cookies enabled in their browser + def require_cookies + if request.cookies["_osm_session"].to_s == "" + if params[:cookie_test].nil? + session[:cookie_test] = true + redirect_to params.to_unsafe_h.merge(:only_path => true, :cookie_test => "true") + false else - @user = User.authenticate(:username => username, :password => passwd) # basic auth + flash.now[:warning] = t "application.require_cookies.cookies_needed" end + else + session.delete(:cookie_test) end + end - # check if the user has been banned - unless @user.nil? or @user.active_blocks.empty? - # NOTE: need slightly more helpful message than this. - render :text => t('application.setup_user_auth.blocked'), :status => :forbidden + def check_database_readable(need_api: false) + if Settings.status == "database_offline" || (need_api && Settings.status == "api_offline") + if request.xhr? + report_error "Database offline for maintenance", :service_unavailable + else + redirect_to :controller => "site", :action => "offline" + end end end - def authorize(realm='Web Password', errormessage="Couldn't authenticate you") - # make the @user object from any auth sources we have - setup_user_auth - - # handle authenticate pass/fail - unless @user - # no auth, the user does not exist or the password was wrong - response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\"" - render :text => errormessage, :status => :unauthorized - return false - end - end + def check_database_writable(need_api: false) + if Settings.status == "database_offline" || Settings.status == "database_readonly" || + (need_api && (Settings.status == "api_offline" || Settings.status == "api_readonly")) + if request.xhr? + report_error "Database offline for maintenance", :service_unavailable + else + redirect_to :controller => "site", :action => "offline" + end + end + end - def check_database_readable(need_api = false) - if OSM_STATUS == :database_offline or (need_api and OSM_STATUS == :api_offline) - redirect_to :controller => 'site', :action => 'offline' + def check_api_readable + if api_status == "offline" + report_error "Database offline for maintenance", :service_unavailable + false end end - def check_database_writable(need_api = false) - if OSM_STATUS == :database_offline or OSM_STATUS == :database_readonly or - (need_api and (OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly)) - redirect_to :controller => 'site', :action => 'offline' + def check_api_writable + unless api_status == "online" + report_error "Database offline for maintenance", :service_unavailable + false end end - def check_api_readable - if OSM_STATUS == :database_offline or OSM_STATUS == :api_offline - response.headers['Error'] = "Database offline for maintenance" - render :nothing => true, :status => :service_unavailable - return false + def database_status + case Settings.status + when "database_offline" + "offline" + when "database_readonly" + "readonly" + else + "online" end end - def check_api_writable - if OSM_STATUS == :database_offline or OSM_STATUS == :database_readonly or - OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly - response.headers['Error'] = "Database offline for maintenance" - render :nothing => true, :status => :service_unavailable - return false + def api_status + status = database_status + if status == "online" + case Settings.status + when "api_offline" + status = "offline" + when "api_readonly" + status = "readonly" + end end + status end def require_public_data - unless @user.data_public? - response.headers['Error'] = "You must make your edits public to upload new data" - render :nothing => true, :status => :forbidden - return false + unless current_user.data_public? + report_error "You must make your edits public to upload new data", :forbidden + false end end # Report and error to the user # (If anyone ever fixes Rails so it can set a http status "reason phrase", - # rather than only a status code and having the web engine make up a + # rather than only a status code and having the web engine make up a # phrase from that, we can also put the error message into the status # message. For now, rails won't let us) def report_error(message, status = :bad_request) - # Todo: some sort of escaping of problem characters in the message - response.headers['Error'] = message - render :text => message, :status => status + # TODO: some sort of escaping of problem characters in the message + response.headers["Error"] = message + + if request.headers["X-Error-Format"]&.casecmp?("xml") + result = OSM::API.new.xml_doc + result.root.name = "osmError" + result.root << (XML::Node.new("status") << "#{Rack::Utils.status_code(status)} #{Rack::Utils::HTTP_STATUS_CODES[status]}") + result.root << (XML::Node.new("message") << message) + + render :xml => result.to_s + else + render :plain => message, :status => status + end end - + + def preferred_languages + @preferred_languages ||= if params[:locale] + Locale.list(params[:locale]) + elsif current_user + current_user.preferred_languages + else + Locale.list(http_accept_language.user_preferred_languages) + end + end + + helper_method :preferred_languages + def set_locale - response.header['Vary'] = 'Accept-Language' - - if @user - if !@user.languages.empty? - request.user_preferred_languages = @user.languages - response.header['Vary'] = '*' - elsif !request.user_preferred_languages.empty? - @user.languages = request.user_preferred_languages - @user.save - end + if current_user&.languages&.empty? && !http_accept_language.user_preferred_languages.empty? + current_user.languages = http_accept_language.user_preferred_languages + current_user.save end - I18n.locale = request.compatible_language_from(I18n.available_locales) + I18n.locale = Locale.available.preferred(preferred_languages) - response.headers['Content-Language'] = I18n.locale.to_s + response.headers["Vary"] = "Accept-Language" + response.headers["Content-Language"] = I18n.locale.to_s end - def api_call_handle_error - begin - yield - rescue ActiveRecord::RecordNotFound => ex - render :nothing => true, :status => :not_found - rescue LibXML::XML::Error, ArgumentError => ex - report_error ex.message, :bad_request - rescue ActiveRecord::RecordInvalid => ex - message = "#{ex.record.class} #{ex.record.id}: " - ex.record.errors.each { |attr,msg| message << "#{attr}: #{msg} (#{ex.record[attr].inspect})" } - report_error message, :bad_request - rescue OSM::APIError => ex - report_error ex.message, ex.status - rescue Exception => ex - logger.info("API threw unexpected #{ex.class} exception: #{ex.message}") - ex.backtrace.each { |l| logger.info(l) } - report_error "#{ex.class}: #{ex.message}", :internal_server_error + ## + # wrap a web page in a timeout + def web_timeout(&) + raise Timeout::Error if Settings.web_timeout.negative? + + Timeout.timeout(Settings.web_timeout, &) + rescue ActionView::Template::Error => e + e = e.cause + + if e.is_a?(Timeout::Error) || + (e.is_a?(ActiveRecord::StatementInvalid) && e.message.include?("execution expired")) + respond_to_timeout + else + raise end + rescue Timeout::Error + respond_to_timeout + end + + def respond_to_timeout + ActiveRecord::Base.connection.raw_connection.cancel + render :action => "timeout", :status => :gateway_timeout end ## - # asserts that the request method is the +method+ given as a parameter - # or raises a suitable error. +method+ should be a symbol, e.g: :put or :get. - def assert_method(method) - ok = request.send((method.to_s.downcase + "?").to_sym) - raise OSM::APIBadMethodError.new(method) unless ok - end - - def api_call_timeout - Timeout::timeout(APP_CONFIG['api_timeout'], OSM::APITimeoutError) do - yield - end - end - -private - # extract authorisation credentials from headers, returns user = nil if none - def get_auth_data - if request.env.has_key? 'X-HTTP_AUTHORIZATION' # where mod_rewrite might have put it - authdata = request.env['X-HTTP_AUTHORIZATION'].to_s.split - elsif request.env.has_key? 'REDIRECT_X_HTTP_AUTHORIZATION' # mod_fcgi - authdata = request.env['REDIRECT_X_HTTP_AUTHORIZATION'].to_s.split - elsif request.env.has_key? 'HTTP_AUTHORIZATION' # regular location - authdata = request.env['HTTP_AUTHORIZATION'].to_s.split - end - # only basic authentication supported - if authdata and authdata[0] == 'Basic' - user, pass = Base64.decode64(authdata[1]).split(':',2) - end - return [user, pass] - end + # Unfortunately if a PUT or POST request that has a body fails to + # read it then Apache will sometimes fail to return the response it + # is given to the client properly, instead erroring: + # + # https://issues.apache.org/bugzilla/show_bug.cgi?id=44782 + # + # To work round this we call rewind on the body here, which is added + # as a filter, to force it to be fetched from Apache into a file. + def fetch_body + request.body.rewind + end + + def map_layout + policy = request.content_security_policy.clone + + policy.child_src(*policy.child_src, "http://127.0.0.1:8111", "https://127.0.0.1:8112") + policy.frame_src(*policy.frame_src, "http://127.0.0.1:8111", "https://127.0.0.1:8112") + policy.connect_src(*policy.connect_src, Settings.nominatim_url, Settings.overpass_url, Settings.fossgis_osrm_url, Settings.graphhopper_url, Settings.fossgis_valhalla_url) + policy.form_action(*policy.form_action, "render.openstreetmap.org") + policy.style_src(*policy.style_src, :unsafe_inline) + + request.content_security_policy = policy + + case Settings.status + when "database_offline", "api_offline" + flash.now[:warning] = t("layouts.osm_offline") + when "database_readonly", "api_readonly" + flash.now[:warning] = t("layouts.osm_read_only") + end + + request.xhr? ? "xhr" : "map" + end + + def preferred_editor + if params[:editor] + params[:editor] + elsif current_user&.preferred_editor + current_user.preferred_editor + else + Settings.default_editor + end + end + + helper_method :preferred_editor + + def update_totp + if Settings.key?(:totp_key) + cookies["_osm_totp_token"] = { + :value => ROTP::TOTP.new(Settings.totp_key, :interval => 3600).now, + :domain => "openstreetmap.org", + :expires => 1.hour.from_now + } + end + end + + def current_ability + Ability.new(current_user) + end + + def deny_access(_exception) + if doorkeeper_token + set_locale + report_error t("oauth.permissions.missing"), :forbidden + elsif current_user + set_locale + respond_to do |format| + format.html { redirect_to :controller => "/errors", :action => "forbidden" } + format.any { report_error t("application.permission_denied"), :forbidden } + end + elsif request.get? + respond_to do |format| + format.html { redirect_to login_path(:referer => request.fullpath) } + format.any { head :forbidden } + end + else + head :forbidden + end + end + + def invalid_parameter(_exception) + if request.get? + respond_to do |format| + format.html { redirect_to :controller => "/errors", :action => "bad_request" } + format.any { head :bad_request } + end + else + head :bad_request + end + end + + # clean any referer parameter + def safe_referer(referer) + begin + referer = URI.parse(referer) + + if referer.scheme == "http" || referer.scheme == "https" + referer.scheme = nil + referer.host = nil + referer.port = nil + elsif referer.scheme || referer.host || referer.port + referer = nil + end + + referer = nil if referer&.path&.first != "/" + rescue URI::InvalidURIError + referer = nil + end + + referer&.to_s + end + + def scope_enabled?(scope) + doorkeeper_token&.includes_scope?(scope) + end + helper_method :scope_enabled? end