refactor: read auth provider info from app config

src/app/modules/auth/factories/auth.factory.ts

@@ -17,21 +17,36 @@ import {
   StorageBackend,
   Requestor,
   AuthorizationServiceConfiguration,
+  AuthorizationServiceConfigurationJson,
 } from '@openid/appauth';
-import {Browser} from 'ionic-appauth';
-import {environment} from 'src/environments/environment';
-import {DefaultAuthService} from '../default-auth.service';
+import {Browser, IAuthConfig} from 'ionic-appauth';
 import {PAIAAuthService} from '../paia/paia-auth.service';
+import config from '../../../../../capacitor.config';
+import {ConfigProvider} from '../../config/config.provider';
+import {
+  SCAuthorizationProvider,
+  SCAuthorizationProviderType,
+} from '@openstapps/core';
+import {DefaultAuthService} from '../default-auth.service';
+import {Capacitor} from '@capacitor/core';
+import {authPaths} from '../auth-paths';
+import {environment} from '../../../../environments/environment';
 
 export const authFactory = (
   requestor: Requestor,
   browser: Browser,
   storage: StorageBackend,
+  configProvider: ConfigProvider,
 ) => {
   const authService = new DefaultAuthService(browser, storage, requestor);
-  authService.authConfig = environment.oauth2.client.his;
+  const authConfig = configProvider.getAnyValue('auth') as {
+    default: SCAuthorizationProvider;
+  };
+
+  authService.authConfig = getClientConfig('default', authConfig);
+
   authService.localConfiguration = new AuthorizationServiceConfiguration(
-    environment.oauth2.service.his,
+    getEndpointsConfig('default', authConfig),
   );
 
   return authService;
@@ -41,12 +56,67 @@ export const paiaAuthFactory = (
   requestor: Requestor,
   browser: Browser,
   storage: StorageBackend,
+  configProvider: ConfigProvider,
 ) => {
   const authService = new PAIAAuthService(browser, storage, requestor);
-  authService.authConfig = environment.oauth2.client.paia;
+  const authConfig = configProvider.getAnyValue('auth') as {
+    paia: SCAuthorizationProvider;
+  };
+
+  authService.authConfig = getClientConfig('paia', authConfig);
+
   authService.localConfiguration = new AuthorizationServiceConfiguration(
-    environment.oauth2.service.paia,
+    getEndpointsConfig('paia', authConfig),
   );
 
   return authService;
 };
+
+/**
+ * Get configuration of an OAuth2 client
+ */
+function getClientConfig(
+  providerType: SCAuthorizationProviderType,
+  authConfig: {
+    default?: SCAuthorizationProvider;
+    paia?: SCAuthorizationProvider;
+  },
+): IAuthConfig {
+  const providerConfig = authConfig[providerType] as SCAuthorizationProvider;
+  return {
+    end_session_redirect_url: '',
+    pkce: true,
+    scopes: providerConfig.client.scopes,
+    server_host: providerConfig.client.url,
+    client_id: providerConfig.client.clientId,
+    redirect_url: getRedirectUrl(authPaths[providerType].redirect_path),
+  };
+}
+
+/**
+ * Get configuration about endpoints of an OAuth2 server
+ */
+function getEndpointsConfig(
+  providerType: SCAuthorizationProviderType,
+  authConfig: {
+    default?: SCAuthorizationProvider;
+    paia?: SCAuthorizationProvider;
+  },
+): AuthorizationServiceConfigurationJson {
+  const providerConfig = authConfig[providerType] as SCAuthorizationProvider;
+  return {
+    authorization_endpoint: providerConfig.endpoints.authorization,
+    end_session_endpoint: providerConfig.endpoints.endSession,
+    revocation_endpoint: providerConfig.endpoints.revoke ?? '',
+    token_endpoint: providerConfig.endpoints.token,
+    userinfo_endpoint: providerConfig.endpoints.userinfo,
+  };
+}
+
+/**
+ * Return a URL of the app, depending on the platform where it is running
+ */
+function getRedirectUrl(routePath: string): string {
+  const appSchema = Capacitor.isNativePlatform() ? config.appId : 'https';
+  return `${appSchema}://${environment.app_host}/${routePath}`;
+}