Added keycloak idp hint attribute support

packages/app-shell/src/app-shell.js

@@ -712,7 +712,7 @@ export class AppShell extends ScopedElementsMixin(LitElement) {
 
         return html`
             <slot class="${slotClassMap}"></slot>
-            <dbp-auth-keycloak lang="${this.lang}" url="${kc.url}" realm="${kc.realm}" client-id="${kc.clientId}" silent-check-sso-redirect-uri="${kc.silentCheckSsoRedirectUri || ''}" scope="${kc.scope || ''}" load-person try-login></dbp-auth-keycloak>
+            <dbp-auth-keycloak lang="${this.lang}" url="${kc.url}" realm="${kc.realm}" client-id="${kc.clientId}" silent-check-sso-redirect-uri="${kc.silentCheckSsoRedirectUri || ''}" scope="${kc.scope || ''}"  idp-hint="${kc.idpHint || ''}" load-person try-login></dbp-auth-keycloak>
             <div class="${mainClassMap}">
             <div id="main">
                 <dbp-notification lang="${this.lang}"></dbp-notification>

packages/auth/src/auth-keycloak.js

@@ -42,6 +42,7 @@ export class AuthKeycloak extends LitElement {
         this.clientId = null;
         this.silentCheckSsoRedirectUri = null;
         this.scope = null;
+        this.idpHint = '';
 
         // Create the events
         this.initEvent = new CustomEvent("dbp-auth-init", { "detail": "KeyCloak init event", bubbles: true, composed: true });
@@ -174,6 +175,7 @@ export class AuthKeycloak extends LitElement {
             clientId: { type: String, attribute: 'client-id' },
             silentCheckSsoRedirectUri: { type: String, attribute: 'silent-check-sso-redirect-uri' },
             scope: { type: String },
+            idpHint: { type: String, attribute: 'idp-hint' },
         };
     }
 
@@ -188,7 +190,7 @@ export class AuthKeycloak extends LitElement {
             throw Error("client-id not set");
 
         this._bus = new EventBus();
-        this._kcwrapper = new KeycloakWrapper(this.keycloakUrl, this.realm, this.clientId, this.silentCheckSsoRedirectUri);
+        this._kcwrapper = new KeycloakWrapper(this.keycloakUrl, this.realm, this.clientId, this.silentCheckSsoRedirectUri, this.idpHint);
         this._kcwrapper.addEventListener('changed', this._onKCChanged);
 
         this._bus.subscribe('auth-login', () => {

packages/auth/src/keycloak.js

@@ -39,7 +39,7 @@ const ensureURL = function(urlOrPath) {
  */
 export class KeycloakWrapper extends EventTarget {
 
-    constructor(baseURL, realm, clientId, silentCheckSsoUri) {
+    constructor(baseURL, realm, clientId, silentCheckSsoUri, idpHint) {
         super();
 
         this._baseURL = baseURL;
@@ -48,6 +48,7 @@ export class KeycloakWrapper extends EventTarget {
         this._keycloak = null;
         this._initDone = false;
         this._silentCheckSsoUri = silentCheckSsoUri;
+        this._idpHint = idpHint;
     }
 
     _onChanged() {
@@ -105,6 +106,7 @@ export class KeycloakWrapper extends EventTarget {
     async _keycloakInit(options) {
         // https://gitlab.tugraz.at/dbp/apps/library/issues/41
         // retry the keycloak init in case it fails, maybe it helps :/
+        options['idpHint'] = 'eid-oidc';
         try {
             return await this._keycloak.init(options);
         } catch (e) {
@@ -120,10 +122,12 @@ export class KeycloakWrapper extends EventTarget {
 
         const options = {
             promiseType: 'native',
-            pkceMethod: 'S256'
+            pkceMethod: 'S256',
         };
 
+
         if (this._silentCheckSsoUri) {
+
             options['onLoad'] = 'check-sso';
             options['silentCheckSsoRedirectUri'] = ensureURL(this._silentCheckSsoUri);
 
@@ -136,6 +140,7 @@ export class KeycloakWrapper extends EventTarget {
         } else {
             await this._keycloakInit(options);
         }
+
     }
 
     /**
@@ -164,7 +169,9 @@ export class KeycloakWrapper extends EventTarget {
                 kcLocale: language,  // Keycloak < 9.0
                 locale: language,
                 scope: scope,
+                idpHint: this._idpHint,
             });
+            //options['idpHint'] = 'eid-oidc';
         }
     }