Add login hint support

Add login hint support as per oidc standard and prepopulate username.

Author: soun059

identifier/package.json

@@ -25,6 +25,7 @@
     "redux-logger": "^3.0.6",
     "redux-thunk": "^2.4.2",
     "render-if": "^0.1.1",
+    "validator": "^13.12.0",
     "web-vitals": "^1.1.2"
   },
   "scripts": {
@@ -47,6 +48,7 @@
     "@types/react-dom": "^17.0.23",
     "@types/react-redux": "^7.1.25",
     "@types/redux-logger": "^3.0.12",
+    "@types/validator": "^13",
     "@typescript-eslint/eslint-plugin": "^6.11.0",
     "@typescript-eslint/parser": "^6.9.0",
     "@typescript-eslint/typescript-estree": "^6.11.0",

identifier/src/containers/Login/Login.jsx

@@ -83,6 +83,12 @@ function Login(props) {
       history.replace(`/chooseaccount${history.location.search}${history.location.hash}`);
       return;
     }
+    // Login Hint validation is done so as to update user name automatically based on login hint provided.
+    if (query && query.login_hint) {
+      if (validator.isEmail(query.login_hint) || validator.isEmail(`${query.login_hint}@example.com`)) {
+        dispatch(updateInput("username", query.login_hint));
+      }  
+    }
   }, [ /* no dependencies */ ]); // eslint-disable-line react-hooks/exhaustive-deps
 
   const handleChange = (name) => (event) => {

identifier/yarn.lock

@@ -4090,6 +4090,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/validator@npm:^13":
+  version: 13.12.2
+  resolution: "@types/validator@npm:13.12.2"
+  checksum: 564f60cfe112b45e1d747245d1f80db999bbc372b2b6a1c5454441b02c3d6bffbfff4365a10c3cd7874197f14ca5779b435794c7600bdcb541da948405a3b21a
+  languageName: node
+  linkType: hard
+
 "@types/yargs-parser@npm:*":
   version: 21.0.0
   resolution: "@types/yargs-parser@npm:21.0.0"
@@ -7705,6 +7712,7 @@ __metadata:
     "@types/react-dom": "npm:^17.0.23"
     "@types/react-redux": "npm:^7.1.25"
     "@types/redux-logger": "npm:^3.0.12"
+    "@types/validator": "npm:^13"
     "@typescript-eslint/eslint-plugin": "npm:^6.11.0"
     "@typescript-eslint/parser": "npm:^6.9.0"
     "@typescript-eslint/typescript-estree": "npm:^6.11.0"
@@ -7739,6 +7747,7 @@ __metadata:
     source-map-explorer: "npm:^2.5.3"
     terser: "npm:^5.30.4"
     typescript: "npm:^5.2.2"
+    validator: "npm:^13.12.0"
     vite: "npm:^4.5.2"
     vite-plugin-checker: "npm:^0.6.2"
     vite-plugin-eslint: "npm:^1.8.1"
@@ -11515,6 +11524,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"validator@npm:^13.12.0":
+  version: 13.12.0
+  resolution: "validator@npm:13.12.0"
+  checksum: db6eb0725e2b67d60d30073ae8573982713b5903195d031dc3c7db7e82df8b74e8c13baef8e2106d146d979599fd61a06cde1fec5c148e4abd53d52817ff0fd9
+  languageName: node
+  linkType: hard
+
 "value-equal@npm:^1.0.1":
   version: 1.0.1
   resolution: "value-equal@npm:1.0.1"