Can check through the API whether an email address exists or not

src/controllers/AccountController.ts

@@ -64,4 +64,18 @@ export class AccountController {
 			userID: handler.getUserId()
 		});
 	}
+
+	/**
+	 * Check out whether an email is associated to an account
+	 * or not
+	 * 
+	 * @param h Request handler
+	 */
+	public static async ExistsMail(h: RequestHandler) {
+		const email = h.postEmail("email");
+
+		h.send({
+			exists: await AccountHelper.ExistsEmail(email)
+		})
+	}
 }

src/controllers/Routes.ts

@@ -43,6 +43,8 @@ export const Routes : Route[] = [
 	{path: "/account/id", cb: (h) => AccountController.CurrentUserID(h)},
 	{path: "/user/getCurrentUserID", cb: (h) => AccountController.CurrentUserID(h)}, // Legacy
 
+	{path: "/account/exists_email", cb: (h) => AccountController.ExistsMail(h), needLogin: false},
+
 
 	// User controller
 	{path: "/user/getInfo", cb: (h) => UserController.GetSingle(h), needLogin: false},

src/helpers/AccountHelper.ts

@@ -161,6 +161,20 @@ export class AccountHelper {
 		};
 	}
 
+	/**
+	 * Check out whether an email address exists or not
+	 * 
+	 * @param email Email address to check
+	 */
+	public static async ExistsEmail(email: string) : Promise<boolean> {
+		return await DatabaseHelper.Count({
+			table: USER_TABLE,
+			where: {
+				mail: email
+			}
+		}) > 0;
+	}
+
 
 	/**
 	 * Check out whether a virtual directory is available or not