Add OAuth2 authentication (#147)

- Added Site settings > Authentication section
- Create/edit/delete your custom oauth2 configurations
- Login or signup with oauth2

app/javascript/interfaces/IOAuth.ts

@@ -0,0 +1,67 @@
+export interface IOAuth {
+  id?: number;
+  name: string;
+  logo?: string;
+  isEnabled: boolean;
+  clientId: string;
+  clientSecret?: string;
+  authorizeUrl: string;
+  tokenUrl: string;
+  profileUrl: string;
+  scope: string;
+  jsonUserEmailPath: string;
+  jsonUserNamePath?: string;
+
+  callbackUrl?: string;
+}
+
+export interface IOAuthJSON {
+  id: string;
+  name: string;
+  logo?: string;
+  is_enabled: boolean;
+  client_id: string;
+  client_secret?: string;
+  authorize_url: string;
+  token_url: string;
+  profile_url: string;
+  scope: string;
+  json_user_email_path: string;
+  json_user_name_path?: string;
+
+  callback_url?: string;
+}
+
+export const oAuthJSON2JS = (oAuthJSON: IOAuthJSON) => ({
+  id: parseInt(oAuthJSON.id),
+  name: oAuthJSON.name,
+  logo: oAuthJSON.logo,
+  isEnabled: oAuthJSON.is_enabled,
+  clientId: oAuthJSON.client_id,
+  clientSecret: oAuthJSON.client_secret,
+  authorizeUrl: oAuthJSON.authorize_url,
+  tokenUrl: oAuthJSON.token_url,
+  scope: oAuthJSON.scope,
+  profileUrl: oAuthJSON.profile_url,
+  jsonUserEmailPath: oAuthJSON.json_user_email_path,
+  jsonUserNamePath: oAuthJSON.json_user_name_path,
+
+  callbackUrl: oAuthJSON.callback_url,
+});
+
+export const oAuthJS2JSON = (oAuth: IOAuth) => ({
+  id: oAuth.id?.toString(),
+  name: oAuth.name,
+  logo: oAuth.logo,
+  is_enabled: oAuth.isEnabled,
+  client_id: oAuth.clientId,
+  client_secret: oAuth.clientSecret,
+  authorize_url: oAuth.authorizeUrl,
+  token_url: oAuth.tokenUrl,
+  profile_url: oAuth.profileUrl,
+  scope: oAuth.scope,
+  json_user_email_path: oAuth.jsonUserEmailPath,
+  json_user_name_path: oAuth.jsonUserNamePath,
+
+  callback_url: oAuth.callbackUrl,
+});