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import { Link, useNavigate } from "@tanstack/react-router";
import { useAuth } from "../../lib/auth-context";
import { authApi } from "../../lib/api";
import { queryClient } from "../../lib/query-client";
import { isValidEmail, isStrongPassword, isValidName } from "../../lib/validation";
import { PasswordStrength } from "../ui/password-strength";
const isLocalUrl = (url: string) => url.startsWith("/") && !url.startsWith("//");
// Client-side brute-force throttling (UX only — not a security boundary).
// This deters casual repeated attempts but can be bypassed by refreshing.
// Server-side rate limiting (rate-limit.middleware.ts) is the real defense.
const MAX_FAILED_ATTEMPTS = 5;
const COOLDOWN_SECONDS = 30;
interface PasswordFormProps {
isSignUp: boolean;
invitationToken?: string;
redirect?: string;
}
export function PasswordForm({ isSignUp, invitationToken, redirect }: PasswordFormProps) {
const { signIn, signUp } = useAuth();
const navigate = useNavigate();
const [name, setName] = useState("");
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
const [confirmPassword, setConfirmPassword] = useState("");
const [isLoading, setIsLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const [signUpSuccess, setSignUpSuccess] = useState(false);
const [touched, setTouched] = useState({ name: false, email: false, password: false, confirm: false });
// Bug 2: Brute-force throttling state
const [failedAttempts, setFailedAttempts] = useState(0);
const [cooldownRemaining, setCooldownRemaining] = useState(0);
const cooldownTimerRef = useRef<ReturnType<typeof setInterval> | null>(null);
// Bug 3: Unverified email state + resend
const [showResendVerification, setShowResendVerification] = useState(false);
const [resendingVerification, setResendingVerification] = useState(false);
const [resendSuccess, setResendSuccess] = useState(false);
const trimmedName = name.trim();
const trimmedEmail = email.trim();
const nameError = isSignUp && touched.name && !trimmedName
? "Name is required"
: isSignUp && touched.name && trimmedName && !isValidName(trimmedName)
? "Please enter a valid name"
: undefined;
const emailError = touched.email && !trimmedEmail
? "Email is required"
: touched.email && trimmedEmail && !isValidEmail(trimmedEmail)
? "Enter a valid email"
: undefined;
const passwordError = touched.password && !password.trim() ? "Password is required" : undefined;
const confirmError =
touched.confirm && confirmPassword.length > 0 && password !== confirmPassword
? "Passwords do not match"
: undefined;
const isCoolingDown = cooldownRemaining > 0;
// Bug 2: Start cooldown timer
const startCooldown = useCallback(() => {
setCooldownRemaining(COOLDOWN_SECONDS);
Iif (cooldownTimerRef.current) clearInterval(cooldownTimerRef.current);
cooldownTimerRef.current = setInterval(() => {
setCooldownRemaining((prev) => {
if (prev <= 1) {
Eif (cooldownTimerRef.current) clearInterval(cooldownTimerRef.current);
cooldownTimerRef.current = null;
return 0;
}
return prev - 1;
});
}, 1000);
}, []);
// Cleanup cooldown timer on unmount
useEffect(() => {
return () => {
if (cooldownTimerRef.current) clearInterval(cooldownTimerRef.current);
};
}, []);
// Bug 3: Resend verification email
const handleResendVerification = async () => {
if (!email.trim()) return;
setResendingVerification(true);
setResendSuccess(false);
try {
await authApi.resendVerification(email.trim());
setResendSuccess(true);
} catch (resendErr) {
console.error("Failed to resend verification:", resendErr);
// Show generic success — don't reveal if email exists
setResendSuccess(true);
} finally {
setResendingVerification(false);
}
};
const handleSubmit = async (e: React.FormEvent) => {
e.preventDefault();
setTouched({ name: true, email: true, password: true, confirm: true });
setError(null);
setShowResendVerification(false);
setResendSuccess(false);
if (isSignUp && (!trimmedName || !isValidName(trimmedName))) return;
if (!trimmedEmail || !isValidEmail(trimmedEmail)) return;
if (!password.trim()) return;
if (isSignUp && !isStrongPassword(password)) {
setError("Please meet all password requirements");
return;
}
if (isSignUp && password !== confirmPassword) {
return;
}
// Bug 2: Check cooldown
Iif (!isSignUp && isCoolingDown) return;
setIsLoading(true);
try {
if (isSignUp) {
const emailStatus = await authApi.checkEmail(trimmedEmail);
if (emailStatus.exists) {
if (emailStatus.provider === "google") {
setError("This email is registered with Google. Use the Google button below to sign in.");
} else if (emailStatus.provider === "facebook") {
setError("This email is registered with Facebook. Use the Facebook button below to sign in.");
} else if (emailStatus.verified) {
setError("This email already has an account. Sign in instead.");
} else {
setError("This email already has an account but is not yet verified.");
setShowResendVerification(true);
}
return;
}
await signUp(trimmedEmail, password, trimmedName);
setSignUpSuccess(true);
} else {
const result = await signIn(trimmedEmail, password);
// Reset failed attempts on success
setFailedAttempts(0);
queryClient.clear();
if (invitationToken) {
navigate({ to: "/accept-invitation", search: { token: invitationToken } });
} else if (result.pendingInvitationToken) {
navigate({ to: "/accept-invitation", search: { token: result.pendingInvitationToken } });
} else if (redirect && isLocalUrl(redirect)) {
navigate({ to: redirect as string });
} else {
navigate({ to: "/" });
}
}
} catch (err: unknown) {
const message =
err instanceof Error ? err.message : "Something went wrong. Please try again.";
// Bug 3: Detect unverified email error
const isUnverified = message.toLowerCase().includes("not verified") ||
message.toLowerCase().includes("email_not_verified") ||
(err instanceof Error && "code" in err && (err as { code: string }).code === "EMAIL_NOT_VERIFIED");
if (!isSignUp && isUnverified) {
setError("Your email is not yet verified.");
setShowResendVerification(true);
} else if (!isSignUp) {
// Bug 2: Track failed attempts for sign-in
const newAttempts = failedAttempts + 1;
setFailedAttempts(newAttempts);
if (newAttempts >= MAX_FAILED_ATTEMPTS) {
startCooldown();
setError(`Too many failed attempts. Please wait ${COOLDOWN_SECONDS} seconds before trying again.`);
} else {
setError("Invalid email or password. Please try again.");
}
} else {
const isNetworkError = err instanceof TypeError ||
(err instanceof Error && err.message === "Failed to fetch");
setError(
isNetworkError
? "Unable to connect. Please check your internet and try again."
: message,
);
}
} finally {
setIsLoading(false);
}
};
// Bug 3: Sign-up success screen with resend verification
if (signUpSuccess) {
return (
<div className="text-center py-4 space-y-3">
<p className="text-sm font-medium text-foreground">Check your email</p>
<p className="text-sm text-muted-foreground">
We've sent a verification link to{" "}
<span className="font-medium">{email}</span>.
</p>
{resendSuccess ? (
<p className="text-sm text-green-600">Verification email sent! Check your inbox.</p>
) : (
<button
type="button"
onClick={handleResendVerification}
disabled={resendingVerification}
className="text-sm text-primary hover:underline disabled:opacity-50"
>
{resendingVerification ? "Sending..." : "Didn't receive it? Resend verification email"}
</button>
)}
</div>
);
}
return (
<form onSubmit={handleSubmit} className="space-y-4" noValidate>
{isSignUp && (
<div>
<label htmlFor="email-name" className="block text-sm font-medium text-foreground mb-1">
Name
</label>
<input
id="email-name"
type="text"
value={name}
onChange={(e) => setName(e.target.value)}
onBlur={() => setTouched(t => ({ ...t, name: true }))}
placeholder="Your full name"
disabled={isLoading}
className={`w-full h-10 px-3 border rounded-md bg-background text-foreground text-sm focus:outline-none focus:ring-2 focus:ring-primary focus:border-primary disabled:opacity-50 ${nameError ? "border-red-500 focus:ring-red-500" : "border-input"}`}
/>
{nameError && <p className="mt-1 text-xs text-destructive">{nameError}</p>}
</div>
)}
<div>
<label htmlFor="email-address" className="block text-sm font-medium text-foreground mb-1">
Email
</label>
<input
id="email-address"
type="email"
value={email}
onChange={(e) => setEmail(e.target.value)}
onBlur={() => setTouched(t => ({ ...t, email: true }))}
placeholder="you@example.com"
disabled={isLoading}
className={`w-full h-10 px-3 border rounded-md bg-background text-foreground text-sm focus:outline-none focus:ring-2 focus:ring-primary focus:border-primary disabled:opacity-50 ${emailError ? "border-red-500 focus:ring-red-500" : "border-input"}`}
/>
{emailError && <p className="mt-1 text-xs text-destructive">{emailError}</p>}
</div>
<div>
<label htmlFor="email-password" className="block text-sm font-medium text-foreground mb-1">
Password
</label>
<input
id="email-password"
type="password"
value={password}
onChange={(e) => setPassword(e.target.value)}
onBlur={() => setTouched(t => ({ ...t, password: true }))}
placeholder={isSignUp ? "Create a strong password" : "Your password"}
disabled={isLoading}
className={`w-full h-10 px-3 border rounded-md bg-background text-foreground text-sm focus:outline-none focus:ring-2 focus:ring-primary focus:border-primary disabled:opacity-50 ${passwordError ? "border-red-500 focus:ring-red-500" : "border-input"}`}
/>
{passwordError && <p className="mt-1 text-xs text-destructive">{passwordError}</p>}
{isSignUp && <PasswordStrength password={password} />}
</div>
{isSignUp && (
<div>
<label htmlFor="email-confirm-password" className="block text-sm font-medium text-foreground mb-1">
Confirm Password
</label>
<input
id="email-confirm-password"
type="password"
value={confirmPassword}
onChange={(e) => setConfirmPassword(e.target.value)}
onBlur={() => setTouched(t => ({ ...t, confirm: true }))}
placeholder="Re-enter your password"
disabled={isLoading}
className={`w-full h-10 px-3 border rounded-md bg-background text-foreground text-sm focus:outline-none focus:ring-2 focus:ring-primary focus:border-primary disabled:opacity-50 ${
confirmError ? "border-destructive" : "border-input"
}`}
/>
{confirmError && (
<p className="mt-1 text-xs text-destructive">{confirmError}</p>
)}
</div>
)}
{!isSignUp && (
<div className="text-right">
<Link
to="/auth/forgot-password"
className="text-xs text-primary hover:underline"
>
Forgot password?
</Link>
</div>
)}
{error && (
<p role="alert" className="text-sm text-destructive">{error}</p>
)}
{/* Bug 3: Resend verification for unverified sign-in */}
{showResendVerification && (
<div className="text-center">
{resendSuccess ? (
<p className="text-sm text-green-600">Verification email sent! Check your inbox.</p>
) : (
<button
type="button"
onClick={handleResendVerification}
disabled={resendingVerification}
className="text-sm text-primary hover:underline disabled:opacity-50"
>
{resendingVerification ? "Sending..." : "Resend verification email"}
</button>
)}
</div>
)}
{/* Bug 2: Cooldown message */}
{isCoolingDown && (
<p className="text-sm text-amber-600">
Please wait {cooldownRemaining}s before trying again.
</p>
)}
<button
type="submit"
disabled={isLoading || isCoolingDown}
className="w-full h-10 px-4 bg-primary text-primary-foreground text-sm font-medium rounded-md hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
>
{isLoading
? isSignUp
? "Creating account..."
: "Signing in..."
: isSignUp
? "Create Account"
: "Login"}
</button>
</form>
);
}
|