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import { createClient } from '@/lib/supabase/server';
import { createClient as createAdminClient, User } from '@supabase/supabase-js';
import { formatPhoneNumber } from '@/lib/auth/otp';
import { checkRateLimit, incrementRateLimit, clearRateLimit } from '@/lib/auth/rate-limit';
import { logSuccessfulLogin, logFailedLogin, getClientInfo, hashIP } from '@/lib/auth/login-events';
import { checkVerificationCode, isTwilioConfigured } from '@/lib/twilio/verify';
// Create admin client for user management after Twilio verification
function getAdminClient() {
const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
const serviceRoleKey = process.env.SUPABASE_SERVICE_ROLE_KEY;
if (!supabaseUrl || !serviceRoleKey) {
throw new Error('Supabase admin credentials not configured');
}
return createAdminClient(supabaseUrl, serviceRoleKey, {
auth: {
autoRefreshToken: false,
persistSession: false,
},
});
}
/**
* Find existing user by phone number using multiple strategies
*/
async function findUserByPhone(
adminClient: ReturnType<typeof getAdminClient>,
formattedPhone: string
): Promise<User | null> {
// Try multiple phone format variations
const phoneVariations = [
formattedPhone,
// Without + prefix
formattedPhone.replace('+', ''),
// With spaces removed
formattedPhone.replace(/\s/g, ''),
];
// Strategy 1: Use RPC function (most reliable if migration is applied)
for (const phoneVariant of phoneVariations) {
try {
console.log('Attempting to find user via RPC for phone:', phoneVariant);
const { data: userId, error: rpcError } = await adminClient.rpc('get_user_by_phone', {
phone_number: phoneVariant,
});
if (!rpcError && userId) {
console.log('RPC returned user ID:', userId);
const { data: userData, error: getUserError } =
await adminClient.auth.admin.getUserById(userId);
if (!getUserError && userData?.user) {
console.log('Found user via RPC:', userData.user.id);
return userData.user;
}
}
if (rpcError) {
console.log('RPC error (function may not exist):', rpcError.message);
break; // RPC function doesn't exist, no point trying other variations
}
} catch (rpcErr) {
console.log('RPC call failed:', rpcErr);
break;
}
}
// Strategy 2: Paginated search through all users
// This is a fallback when RPC is not available
console.log('RPC not available or failed, searching via listUsers...');
let page = 1;
const perPage = 1000; // Use larger page size for efficiency
const maxPages = 20; // Limit to prevent infinite loops
while (page <= maxPages) {
const { data, error } = await adminClient.auth.admin.listUsers({
page,
perPage,
});
if (error) {
console.error('Error listing users:', error);
break;
}
const users = data?.users || [];
console.log(`Page ${page}: checking ${users.length} users`);
for (const u of users) {
// Check against all phone variations
if (u.phone && phoneVariations.some((pv) => u.phone === pv)) {
console.log('Found user via listUsers:', u.id);
return u;
}
}
// If we got fewer users than requested, we've reached the end
if (users.length < perPage) {
break;
}
page++;
}
return null;
}
/**
* Fallback: Find user by phone via profiles table
* This is used when direct auth lookup fails but we know the phone exists
*/
async function findUserByPhoneViaProfiles(
adminClient: ReturnType<typeof getAdminClient>,
formattedPhone: string
): Promise<User | null> {
console.log('Attempting fallback: finding user via profiles for phone:', formattedPhone);
// Query the database directly to find user_id from auth.users
// Using the admin client's raw SQL capability
try {
const { data, error } = await adminClient.from('profiles').select('user_id').limit(1000);
if (error) {
console.error('Error querying profiles:', error);
return null;
}
// For each profile, get the user and check their phone
for (const profile of data || []) {
const { data: userData, error: getUserError } = await adminClient.auth.admin.getUserById(
profile.user_id
);
if (!getUserError && userData?.user?.phone === formattedPhone) {
console.log('Found user via profiles fallback:', userData.user.id);
return userData.user;
}
}
} catch (err) {
console.error('Profiles fallback failed:', err);
}
return null;
}
export async function POST(request: NextRequest) {
try {
const body = await request.json();
const { phone, token, countryCode = '+91' } = body;
if (!phone || !token) {
return NextResponse.json({ error: 'Phone and OTP code are required' }, { status: 400 });
}
if (token.length !== 6 || !/^\d+$/.test(token)) {
return NextResponse.json({ error: 'OTP must be 6 digits' }, { status: 400 });
}
const formattedPhone = formatPhoneNumber(phone, countryCode);
// Check rate limit
const { ipAddress } = getClientInfo(request.headers);
const ipHash = hashIP(ipAddress);
const rateLimitResult = await checkRateLimit(formattedPhone, 'phone', 'otp_verify');
if (!rateLimitResult.allowed) {
return NextResponse.json(
{
error: 'Too many verification attempts. Please request a new OTP.',
blocked_until: rateLimitResult.blocked_until,
},
{ status: 429 }
);
}
// Use direct Twilio Verify if configured
if (isTwilioConfigured()) {
console.log('Using direct Twilio Verify for verification:', formattedPhone);
const twilioResult = await checkVerificationCode(formattedPhone, token);
if (!twilioResult.success || !twilioResult.valid) {
await incrementRateLimit(formattedPhone, 'phone');
await logFailedLogin(
null,
'phone_otp',
request.headers,
twilioResult.error || 'Invalid OTP'
);
return NextResponse.json(
{ error: twilioResult.error || 'Invalid or expired OTP' },
{ status: 401 }
);
}
// OTP verified successfully via Twilio
// Now we need to create/get user in Supabase and establish session
console.log('Twilio OTP verified, finding or creating user...');
try {
const adminClient = getAdminClient();
// Step 1: Check if user already exists with this phone
let user = await findUserByPhone(adminClient, formattedPhone);
// Step 2: If no existing user, create a new one
if (!user) {
console.log('No existing user found, creating new user for phone:', formattedPhone);
const { data: newUser, error: createError } = await adminClient.auth.admin.createUser({
phone: formattedPhone,
phone_confirm: true,
email_confirm: false,
});
if (createError) {
// If phone_exists error, try fallback lookup via profiles
if (createError.code === 'phone_exists') {
console.log('Phone exists error - trying fallback lookup via profiles...');
// Try the profiles-based fallback
user = await findUserByPhoneViaProfiles(adminClient, formattedPhone);
if (!user) {
console.error(
'CRITICAL: Phone exists but all lookup methods failed. Data integrity issue.'
);
return NextResponse.json(
{
error:
'Unable to complete login. Please try again or contact support if the issue persists.',
code: 'USER_LOOKUP_FAILED',
},
{ status: 500 }
);
}
console.log('Found user via fallback:', user.id);
} else {
throw createError;
}
} else {
user = newUser.user;
console.log('Created new user:', user.id);
}
} else {
// Confirm phone if not already confirmed
if (!user.phone_confirmed_at) {
console.log('Confirming phone for existing user:', user.id);
const { data: updatedUser } = await adminClient.auth.admin.updateUserById(user.id, {
phone_confirm: true,
});
if (updatedUser?.user) {
user = updatedUser.user;
}
}
}
// Step 3: Set up credentials for session creation
// For phone-only users, set up email and password for session creation
const hasRealEmail = !!(user.email && !user.email.endsWith('@proofid.internal'));
// Generate a unique password for this session that meets Supabase requirements:
// Must contain lowercase, uppercase, and numbers
const sessionPassword = `PhoneSession${Date.now()}X${crypto.randomUUID().toUpperCase()}`;
// For users with real emails, we need to use their existing email
// For phone-only users, we create a placeholder email
const sessionEmail = hasRealEmail ? user.email! : `phone_${user.id}@proofid.internal`;
console.log(
'Setting up user for session creation:',
user.id,
'hasRealEmail:',
hasRealEmail,
'sessionEmail:',
sessionEmail
);
// Update user with the session password
// We set the email only if user doesn't have a real email
const updatePayload: {
password: string;
email?: string;
email_confirm?: boolean;
} = {
password: sessionPassword,
};
// Only set email for phone-only users
if (!hasRealEmail) {
updatePayload.email = sessionEmail;
updatePayload.email_confirm = true; // Confirm placeholder email so signIn works
}
const { data: updatedUser, error: updateError } =
await adminClient.auth.admin.updateUserById(user.id, updatePayload);
if (updateError) {
console.error('Error updating user for session:', updateError);
// Return a more specific error for debugging
return NextResponse.json({
success: true,
verification: {
verified: true,
phone: formattedPhone,
},
sessionError: `Phone verified but session setup failed: ${updateError.message}`,
provider: 'twilio_verify',
});
}
if (updatedUser?.user) {
user = updatedUser.user;
}
// Use the correct email for session (the one actually set on the user)
const finalEmail = user.email || sessionEmail;
// Clear rate limits on success
await Promise.all([clearRateLimit(formattedPhone, 'phone'), clearRateLimit(ipHash, 'ip')]);
// Log successful login
await logSuccessfulLogin(user.id, 'phone_otp', request.headers);
// Create phone verification badge
await createPhoneVerificationBadge(user.id, formattedPhone);
console.log('Twilio verification complete, returning session credentials');
return NextResponse.json({
success: true,
user: {
id: user.id,
phone: user.phone,
email: finalEmail,
},
// Include credentials for client-side session creation
sessionCredentials: {
email: finalEmail,
password: sessionPassword,
},
verification: {
verified: true,
phone: formattedPhone,
},
provider: 'twilio_verify',
});
} catch (adminError) {
console.error('Admin operation failed:', adminError);
// Still return success for OTP verification, but indicate session creation failed
return NextResponse.json({
success: true,
verification: {
verified: true,
phone: formattedPhone,
},
sessionError: 'Phone verified but automatic login failed. Please try signing in again.',
provider: 'twilio_verify',
});
}
}
// Fallback to Supabase Auth (if Twilio not configured)
console.log('Using Supabase Auth for OTP verification:', formattedPhone);
const supabase = await createClient();
const { data, error } = await supabase.auth.verifyOtp({
phone: formattedPhone,
token,
type: 'sms',
});
if (error) {
console.error('OTP verification error:', error);
// Increment rate limit on failure
await incrementRateLimit(formattedPhone, 'phone');
// Log failed attempt
await logFailedLogin(null, 'phone_otp', request.headers, error.message);
return NextResponse.json(
{ error: 'Invalid or expired OTP. Please try again.' },
{ status: 401 }
);
}
if (!data.user) {
return NextResponse.json(
{ error: 'Verification failed. Please try again.' },
{ status: 401 }
);
}
// Clear rate limits on success
await Promise.all([clearRateLimit(formattedPhone, 'phone'), clearRateLimit(ipHash, 'ip')]);
// Log successful login
await logSuccessfulLogin(data.user.id, 'phone_otp', request.headers);
// Create phone verification badge
await createPhoneVerificationBadge(data.user.id, formattedPhone);
return NextResponse.json({
success: true,
user: {
id: data.user.id,
phone: data.user.phone,
email: data.user.email,
},
session: {
access_token: data.session?.access_token,
refresh_token: data.session?.refresh_token,
},
provider: 'supabase',
});
} catch (error) {
console.error('Verify OTP API error:', error);
return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
}
}
/**
* Helper to create phone verification badge for user
*/
async function createPhoneVerificationBadge(userId: string, _phone: string) {
try {
const supabase = await createClient();
const { data: profile } = await supabase
.from('profiles')
.select('id')
.eq('user_id', userId)
.single();
if (profile) {
const { data: phoneVerificationType } = await supabase
.from('verification_types')
.select('id')
.eq('code', 'phone')
.single();
if (phoneVerificationType) {
await supabase.from('user_verifications').upsert(
{
user_id: userId,
profile_id: profile.id,
verification_type_id: phoneVerificationType.id,
status: 'verified',
verified_at: new Date().toISOString(),
completed_at: new Date().toISOString(),
},
{
onConflict: 'user_id,verification_type_id',
}
);
}
}
} catch (badgeError) {
// Don't fail the verification if badge creation fails
console.error('Failed to create phone verification badge:', badgeError);
}
}
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