From fbb2b3f8da8b01b4b694fc559491db9799975bd3 Mon Sep 17 00:00:00 2001
From: William Petit <wpetit@cadoles.com>
Date: Tue, 19 May 2020 22:22:37 +0200
Subject: [PATCH] Ajout d'une redirection automatique sur la page "referer" en
 cas de perte de session

---
 client/src/store/sagas/failure.ts |  2 ++
 client/src/store/sagas/referer.ts |  9 +++++++++
 client/src/store/sagas/root.ts    |  2 ++
 client/src/util/referer.ts        | 19 +++++++++++++++++++
 4 files changed, 32 insertions(+)
 create mode 100644 client/src/store/sagas/referer.ts
 create mode 100644 client/src/util/referer.ts

diff --git a/client/src/store/sagas/failure.ts b/client/src/store/sagas/failure.ts
index 24e6fb5..b76ae21 100644
--- a/client/src/store/sagas/failure.ts
+++ b/client/src/store/sagas/failure.ts
@@ -1,9 +1,11 @@
 import { GiteaUnauthorizedError } from "../../util/gitea";
 import { put } from 'redux-saga/effects';
 import { logout } from '../actions/logout';
+import { saveReferer } from "../../util/referer";
 
 export function* failuresSaga(action) {
   if (action.error instanceof GiteaUnauthorizedError) {
+    saveReferer();
     yield put(logout());
   }
 }
diff --git a/client/src/store/sagas/referer.ts b/client/src/store/sagas/referer.ts
new file mode 100644
index 0000000..69515bc
--- /dev/null
+++ b/client/src/store/sagas/referer.ts
@@ -0,0 +1,9 @@
+import { hasReferer, getReferer, clearReferer } from '../../util/referer';
+
+export function* navigateToRefererSaga() {
+    if (!hasReferer()) return;
+    const referer = getReferer();
+    console.log("Redirecting to referer", referer);
+    clearReferer();
+    window.location.hash = referer;
+}
\ No newline at end of file
diff --git a/client/src/store/sagas/root.ts b/client/src/store/sagas/root.ts
index f0f6818..89431fd 100644
--- a/client/src/store/sagas/root.ts
+++ b/client/src/store/sagas/root.ts
@@ -10,9 +10,11 @@ import { LOGOUT_REQUEST, LOGOUT_SUCCESS } from '../actions/logout';
 import { logoutSaga, logoutSuccessSaga } from './logout';
 import { BUILD_KANBOARD_REQUEST, MOVE_CARD } from '../actions/kanboards';
 import { buildKanboardSaga, moveCardSaga, refreshKanboardSaga } from './kanboards';
+import { navigateToRefererSaga } from './referer';
 
 export function* rootSaga() {
   yield all([
+    navigateToRefererSaga(),
     takeEvery(patternFromRegExp(/^.*_FAILURE/), failuresSaga),
     takeLatest(FETCH_BOARDS_REQUEST, fetchBoardsSaga),
     takeLatest(BUILD_KANBOARD_REQUEST, buildKanboardSaga),
diff --git a/client/src/util/referer.ts b/client/src/util/referer.ts
new file mode 100644
index 0000000..ad124a4
--- /dev/null
+++ b/client/src/util/referer.ts
@@ -0,0 +1,19 @@
+const localStorage = window.localStorage;
+const refererKey = 'referer';
+
+export function getReferer() {
+    return localStorage.getItem(refererKey);
+}
+
+export function saveReferer() {
+    console.log("Saving referer", window.location.hash);
+    localStorage.setItem(refererKey, window.location.hash);
+}
+
+export function hasReferer() {
+    return !!getReferer();
+}
+
+export function clearReferer() {
+    localStorage.removeItem(refererKey);
+}
\ No newline at end of file