STCOR-869 do not store /logout as a "return-to" URL

When a session ends due to timeout, the current location is stored in
order to allow the subsequent session to begin where the previous one
left off. If the "session timeout" event fires more than once,
however, this could lead to the `/logout` location being stored as the
"return to" location with obvious dire consequences.

There are two changes here:

1. Don't allow locations beginning with `/logout` to be stored. This
  fixes the symptom, not the root cause, but is still worthwhile.

2. Store the session-timeout interval ID in redux, and manage that timer
  via a redux action. Even though this _still_ shouldn't fire more than
  once, if it does, this allows us to cancel the previous timer before
  adding the next one. This is an attempt to fix the root cause.

Refs STCOR-869

src/components/Root/FFetch.js

@@ -46,6 +46,7 @@ import { okapi as okapiConfig } from 'stripes-config';
 import {
   setRtrTimeout,
   setRtrFlsTimeout,
+  setRtrFlsWarningTimeout,
 } from '../../okapiActions';
 
 import { getTokenExpiry } from '../../loginServices';
@@ -131,15 +132,17 @@ export class FFetch {
 
       // schedule FLS end-of-session warning
       this.logger.log('rtr-fls', `end-of-session warning at ${new Date(rotationInterval.refreshTokenExpiration - ms(this.rtrConfig.fixedLengthSessionWarningTTL))}`);
-      this.store.dispatch(setRtrFlsTimeout(setTimeout(() => {
+      this.store.dispatch(setRtrFlsWarningTimeout(setTimeout(() => {
+        this.logger.log('rtr-fls', 'emitting RTR_FLS_WARNING_EVENT');
         window.dispatchEvent(new Event(RTR_FLS_WARNING_EVENT));
       }, rtWarningInterval)));
 
       // schedule FLS end-of-session logout
       this.logger.log('rtr-fls', `session will end at ${new Date(rotationInterval.refreshTokenExpiration)}`);
-      setTimeout(() => {
+      this.store.dispatch(setRtrFlsTimeout(setTimeout(() => {
+        this.logger.log('rtr-fls', 'emitting RTR_FLS_TIMEOUT_EVENT');
         window.dispatchEvent(new Event(RTR_FLS_TIMEOUT_EVENT));
-      }, rtTimeoutInterval);
+      }, rtTimeoutInterval)));
     });
   };
 

src/loginServices.js

@@ -122,7 +122,10 @@ export const setTokenExpiry = async (te) => {
 const UNAUTHORIZED_PATH = 'unauthorized_path';
 export const removeUnauthorizedPathFromSession = () => sessionStorage.removeItem(UNAUTHORIZED_PATH);
 export const setUnauthorizedPathToSession = (pathname) => {
-  sessionStorage.setItem(UNAUTHORIZED_PATH, pathname ?? `${window.location.pathname}${window.location.search}`);
+  const path = pathname ?? `${window.location.pathname}${window.location.search}`;
+  if (!path.startsWith('/logout')) {
+    sessionStorage.setItem(UNAUTHORIZED_PATH, pathname ?? `${window.location.pathname}${window.location.search}`);
+  }
 };
 export const getUnauthorizedPathFromSession = () => sessionStorage.getItem(UNAUTHORIZED_PATH);
 

src/okapiActions.js

@@ -164,6 +164,18 @@ function clearRtrTimeout() {
   };
 }
 
+function setRtrFlsWarningTimeout(rtrFlsTimeout) {
+  return {
+    type: OKAPI_REDUCER_ACTIONS.SET_RTR_FLS_WARNING_TIMEOUT,
+    rtrFlsTimeout,
+  };
+}
+
+function clearRtrFlsWarningTimeout() {
+  return {
+    type: OKAPI_REDUCER_ACTIONS.CLEAR_RTR_FLS_WARNING_TIMEOUT,
+  };
+}
 function setRtrFlsTimeout(rtrFlsTimeout) {
   return {
     type: OKAPI_REDUCER_ACTIONS.SET_RTR_FLS_TIMEOUT,
@@ -190,6 +202,7 @@ export {
   clearCurrentUser,
   clearOkapiToken,
   clearRtrFlsTimeout,
+  clearRtrFlsWarningTimeout,
   clearRtrTimeout,
   setAuthError,
   setBindings,
@@ -203,6 +216,7 @@ export {
   setOkapiToken,
   setPlugins,
   setRtrFlsTimeout,
+  setRtrFlsWarningTimeout,
   setRtrTimeout,
   setServerDown,
   setSessionData,

src/okapiReducer.js

@@ -3,6 +3,7 @@ export const OKAPI_REDUCER_ACTIONS = {
   CLEAR_CURRENT_USER: 'CLEAR_CURRENT_USER',
   CLEAR_OKAPI_TOKEN: 'CLEAR_OKAPI_TOKEN',
   CLEAR_RTR_FLS_TIMEOUT: 'CLEAR_RTR_FLS_TIMEOUT',
+  CLEAR_RTR_FLS_WARNING_TIMEOUT: 'CLEAR_RTR_FLS_WARNING_TIMEOUT',
   CLEAR_RTR_TIMEOUT: 'CLEAR_RTR_TIMEOUT',
   OKAPI_READY: 'OKAPI_READY',
   SERVER_DOWN: 'SERVER_DOWN',
@@ -18,6 +19,7 @@ export const OKAPI_REDUCER_ACTIONS = {
   SET_OKAPI_TOKEN: 'SET_OKAPI_TOKEN',
   SET_PLUGINS: 'SET_PLUGINS',
   SET_RTR_FLS_TIMEOUT: 'SET_RTR_FLS_TIMEOUT',
+  SET_RTR_FLS_WARNING_TIMEOUT: 'SET_RTR_FLS_WARNING_TIMEOUT',
   SET_RTR_TIMEOUT: 'SET_RTR_TIMEOUT',
   SET_SESSION_DATA: 'SET_SESSION_DATA',
   SET_SINGLE_PLUGIN: 'SET_SINGLE_PLUGIN',
@@ -47,9 +49,11 @@ export default function okapiReducer(state = {}, action) {
       // if we're logging out, clear the RTR timeouts and related values
       if (!action.isAuthenticated) {
         clearTimeout(state.rtrTimeout);
+        clearTimeout(state.rtrFlsWarningTimeout);
         clearTimeout(state.rtrFlsTimeout);
         newState.rtrModalIsVisible = false;
         newState.rtrTimeout = undefined;
+        newState.rtrFlsWarningTimeout = undefined;
         newState.rtrFlsTimeout = undefined;
       }
 
@@ -99,10 +103,23 @@ export default function okapiReducer(state = {}, action) {
       clearTimeout(state.rtrTimeout);
       return { ...state, rtrTimeout: action.rtrTimeout };
     }
+
     case OKAPI_REDUCER_ACTIONS.CLEAR_RTR_TIMEOUT: {
       clearTimeout(state.rtrTimeout);
       return { ...state, rtrTimeout: undefined };
     }
+
+    // clear existing FLS warning timeout and set a new one
+    case OKAPI_REDUCER_ACTIONS.SET_RTR_FLS_WARNING_TIMEOUT: {
+      clearTimeout(state.rtrFlsWarningTimeout);
+      return { ...state, rtrFlsWarningTimeout: action.rtrFlsWarningTimeout };
+    }
+
+    case OKAPI_REDUCER_ACTIONS.CLEAR_RTR_FLS_WARNING_TIMEOUT: {
+      clearTimeout(state.rtrFlsWarningTimeout);
+      return { ...state, rtrFlsWarningTimeout: undefined };
+    }
+
     // clear existing FLS timeout and set a new one
     case OKAPI_REDUCER_ACTIONS.SET_RTR_FLS_TIMEOUT: {
       clearTimeout(state.rtrFlsTimeout);