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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
87 lines
3.0 KiB
TypeScript
87 lines
3.0 KiB
TypeScript
import {
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isRole,
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type LoginUserRequest,
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type RegisterUserRequest,
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type UpdateUserRequest,
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} from "../../shared/user.ts";
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import { VALIDATION } from "../../shared/validation.ts";
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export function isLoginUserRequest(obj: unknown): obj is LoginUserRequest {
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return !!obj && typeof obj === "object" &&
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"username" in obj && typeof obj.username === "string" &&
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"password" in obj && typeof obj.password === "string";
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}
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/** `obj[key]` when `obj` is an object that has it, undefined otherwise. */
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export function fieldOf(obj: unknown, key: string): unknown {
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return obj !== null && typeof obj === "object" && key in obj
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? (obj as Record<string, unknown>)[key]
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: undefined;
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}
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export function isRegisterUserRequest(
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obj: unknown,
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): obj is RegisterUserRequest {
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return validateRegisterUserRequest(obj) === null;
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}
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/** Returns a human-readable error string, or null if the request is valid. */
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export function validateRegisterUserRequest(obj: unknown): string | null {
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if (
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!obj || typeof obj !== "object" ||
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!("username" in obj) || typeof obj.username !== "string" ||
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!("password" in obj) || typeof obj.password !== "string" ||
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!("inviteToken" in obj) || typeof obj.inviteToken !== "string" ||
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!("email" in obj) || typeof obj.email !== "string"
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) return "Invalid request";
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const { username, password, email } = obj as RegisterUserRequest;
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if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
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return "Invalid email address";
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}
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if (
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!new RegExp(
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`^[a-zA-Z0-9_]{${VALIDATION.USERNAME_MIN},${VALIDATION.USERNAME_MAX}}$`,
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)
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.test(username)
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) {
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return `Username must be ${VALIDATION.USERNAME_MIN}–${VALIDATION.USERNAME_MAX} characters and contain only letters, numbers, or underscores`;
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}
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if (password.length < VALIDATION.PASSWORD_MIN) {
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return `Password must be at least ${VALIDATION.PASSWORD_MIN} characters`;
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}
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if (password.length > VALIDATION.PASSWORD_MAX) {
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return `Password must be at most ${VALIDATION.PASSWORD_MAX} characters`;
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}
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return null;
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}
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export function isUpdateUserRequest(obj: unknown): obj is UpdateUserRequest {
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if (!obj || typeof obj !== "object") return false;
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const o = obj as Record<string, unknown>;
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if ("username" in o) {
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if (typeof o.username !== "string") return false;
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if (!/^[a-zA-Z0-9_]{1,32}$/.test(o.username as string)) return false;
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}
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if ("password" in o) {
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if (typeof o.password !== "string") return false;
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const len = (o.password as string).length;
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if (len < VALIDATION.PASSWORD_MIN || len > VALIDATION.PASSWORD_MAX) {
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return false;
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}
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}
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if ("role" in o && !isRole(o.role)) return false;
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if (
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"description" in o && typeof o.description !== "string" &&
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o.description !== null
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) return false;
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if ("email" in o) {
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if (typeof o.email !== "string") return false;
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if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(o.email as string)) return false;
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}
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if (
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typeof o.description === "string" &&
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(o.description as string).length > VALIDATION.USER_DESCRIPTION_MAX
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) return false;
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return true;
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}
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