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feat: remove email invite screen, add accept-invite rate limiting, clean up iOS pairing (v0.2.2)

This commit is contained in:
null 2026-06-21 08:55:43 -05:00
parent 5c856d3de6
commit 26419ce08d
10 changed files with 63 additions and 214 deletions
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4
README.md
View File

@ -57,7 +57,7 @@ Closer gives couples a private, shared space for guided connection:
- **Question packs** — 22+ curated categories spanning 6,000+ bundled prompts (communication, conflict, trust, intimacy, parenting, marriage, money, stress, date night, and more).
- **Answer history** — review past questions and answers, delete controls, and partner reveal support.
- **Discussion threads** — question-specific conversation threads and reactions for follow-up.
- **Partner pairing** — 6-character invite code, email invite flow, and partner-aware home states.
- **Partner pairing** — 6-character invite code with copy and share, and partner-aware home states.
- **Spin the wheel** — category-based random questions for date nights, road trips, and low-pressure moments.
- **Date tools** — swipe-to-match date ideas, date planning preferences, and a shared bucket list.
- **Settings & privacy** — account, notifications, appearance, subscription, relationship, privacy, and account deletion flows.
@ -99,7 +99,7 @@ The Android app is the **reference implementation** — the iOS port is built to
All of this is free, forever. No credits, no daily limits that magically shrink after a week.
- Anonymous onboarding → email or Google sign-up
- 6-character invite code pairing (with email invite fallback)
- 6-character invite code pairing (copy or share via any app)
- Daily question with full answer modes (text, scale, multiple choice, this-or-that)
- Private answer reveal flow once both partners have answered
- Question packs — 6,000+ bundled prompts across 22 categories (most packs included free)

4
app/src/main/java/app/closer/core/navigation/AppNavigation.kt
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@ -41,7 +41,6 @@ import app.closer.ui.onboarding.CreateProfileScreen
import app.closer.ui.onboarding.OnboardingScreen
import app.closer.ui.pairing.AcceptInviteScreen
import app.closer.ui.pairing.CreateInviteScreen
import app.closer.ui.pairing.EmailInviteScreen
import app.closer.ui.pairing.InviteConfirmScreen
import app.closer.ui.pairing.PairPromptScreen
import app.closer.ui.pairing.RecoveryScreen
@ -275,9 +274,6 @@ fun AppNavigation(
onBack = { navController.popBackStack() }
)
}
composable(route = AppRoute.EMAIL_INVITE) {
EmailInviteScreen(onNavigate = navigateRoute)
}
composable(route = AppRoute.ACCEPT_INVITE) {
AcceptInviteScreen(
onNavigate = navigateRoute,

3
app/src/main/java/app/closer/core/navigation/AppRoute.kt
View File

@ -19,7 +19,6 @@ object AppRoute {
const val ANSWER_REVEAL = "answer_reveal/{questionId}"
const val ANSWER_HISTORY = "answer_history"
const val CREATE_INVITE = "create_invite"
const val EMAIL_INVITE = "email_invite"
const val ACCEPT_INVITE = "accept_invite"
const val INVITE_CONFIRM = "invite_confirm/{inviteCode}"
const val CATEGORY_PICKER = "category_picker"
@ -82,7 +81,6 @@ object AppRoute {
Definition(ANSWER_REVEAL, "Reveal", "answers"),
Definition(ANSWER_HISTORY, "Answer History", "answers"),
Definition(CREATE_INVITE, "Create Invite", "pairing"),
Definition(EMAIL_INVITE, "Email Invite", "pairing"),
Definition(ACCEPT_INVITE, "Accept Invite", "pairing"),
Definition(INVITE_CONFIRM, "Invite Confirm", "pairing"),
Definition(CATEGORY_PICKER, "Choose A Category", "wheel"),
@ -135,7 +133,6 @@ object AppRoute {
val modalLikeRoutes = setOf(
CREATE_INVITE,
EMAIL_INVITE,
ACCEPT_INVITE,
INVITE_CONFIRM,
PAYWALL,

85
app/src/main/java/app/closer/data/remote/FirestoreInviteDataSource.kt
View File

@ -3,7 +3,6 @@ package app.closer.data.remote
import app.closer.crypto.RecoveryKeyManager
import app.closer.domain.model.Invite
import com.google.firebase.firestore.FirebaseFirestore
import com.google.firebase.Timestamp
import com.google.firebase.functions.FirebaseFunctions
import kotlinx.coroutines.suspendCancellableCoroutine
import kotlinx.coroutines.tasks.await
@ -24,82 +23,30 @@ class FirestoreInviteDataSource @Inject constructor(
.map { CODE_CHARS[Random.nextInt(CODE_CHARS.length)] }
.joinToString("")
/**
* Creates an invite server-side via the [createInviteCallable] Cloud Function.
*
* The client no longer writes invites directly (review2.md Risk #1 fix):
* 6-character document IDs are enumerable, and direct client writes expose
* them to scanning. This function falls back to a direct Firestore write only
* when the callable is unavailable (e.g. not yet deployed), and logs loudly so
* the fallback can be removed once all clients are on the new function.
*
* @return The created invite code and expiry timestamp from the server.
*/
@Suppress("DEPRECATION")
suspend fun createInvite(
code: String,
inviterUserId: String,
wrappedKey: RecoveryKeyManager.WrappedKey,
recoveryPhrase: String
): CreateInviteResponse {
// Primary path: server-side callable.
val callableResult = runCatching {
val result = functions.getHttpsCallable("createInviteCallable")
.call(
mapOf(
"wrappedCoupleKey" to wrappedKey.cipherB64,
"kdfSalt" to wrappedKey.saltB64,
"kdfParams" to wrappedKey.params,
"recoveryPhrase" to recoveryPhrase
)
@Suppress("DEPRECATION")
val result = functions.getHttpsCallable("createInviteCallable")
.call(
mapOf(
"wrappedCoupleKey" to wrappedKey.cipherB64,
"kdfSalt" to wrappedKey.saltB64,
"kdfParams" to wrappedKey.params,
"recoveryPhrase" to recoveryPhrase
)
.await()
val data = result.getData() as? Map<*, *>
?: throw IllegalStateException("Invalid response from createInviteCallable")
val returnedCode = data["code"] as? String
?: throw IllegalStateException("Missing code in createInviteCallable response")
val expiresAt = data["expiresAt"] as? com.google.firebase.Timestamp
?: throw IllegalStateException("Missing expiresAt in createInviteCallable response")
CreateInviteResponse(returnedCode, expiresAt)
}
callableResult.onSuccess { return it }
// Fallback: direct Firestore write when callable is not deployed or unreachable.
// TODO(risk-1): remove this fallback once createInviteCallable is deployed to
// production and all active Android builds include the functions dependency.
android.util.Log.w(
"FirestoreInviteDataSource",
"createInviteCallable failed (${callableResult.exceptionOrNull()?.message}); falling back to direct Firestore write"
)
return createInviteDirect(code, inviterUserId, wrappedKey, recoveryPhrase)
}
/**
* Legacy direct-write path. Kept only as a deployment-transition fallback.
* Will be removed once createInviteCallable is universally available.
*/
private suspend fun createInviteDirect(
code: String,
inviterUserId: String,
wrappedKey: RecoveryKeyManager.WrappedKey,
recoveryPhrase: String
): CreateInviteResponse {
val now = System.currentTimeMillis()
inviteRef(code).set(
mapOf(
"code" to code,
"inviterUserId" to inviterUserId,
"status" to "pending",
"createdAt" to Timestamp.now(),
"expiresAt" to Timestamp(now / 1000 + 24 * 60 * 60, 0),
"wrappedCoupleKey" to wrappedKey.cipherB64,
"kdfSalt" to wrappedKey.saltB64,
"kdfParams" to wrappedKey.params,
"recoveryPhrase" to recoveryPhrase
)
).await()
return CreateInviteResponse(code, Timestamp(now / 1000 + 24 * 60 * 60, 0))
.await()
val data = result.getData() as? Map<*, *>
?: throw IllegalStateException("Invalid response from createInviteCallable")
val returnedCode = data["code"] as? String
?: throw IllegalStateException("Missing code in createInviteCallable response")
val expiresAt = data["expiresAt"] as? com.google.firebase.Timestamp
?: throw IllegalStateException("Missing expiresAt in createInviteCallable response")
return CreateInviteResponse(returnedCode, expiresAt)
}
data class CreateInviteResponse(

35
app/src/main/java/app/closer/ui/pairing/EmailInviteScreen.kt
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@ -1,35 +0,0 @@
package app.closer.ui.pairing
import androidx.compose.runtime.Composable
import androidx.compose.ui.tooling.preview.Preview
import app.closer.core.navigation.AppRoute
import app.closer.ui.components.FinishedEmptyStateAction
import app.closer.ui.components.FinishedEmptyStateScreen
import app.closer.ui.theme.CloserPalette
@Composable
fun EmailInviteScreen(
onNavigate: (String) -> Unit = {}
) {
FinishedEmptyStateScreen(
eyebrow = "Pairing",
title = "Send an invite that is easy to follow",
body = "Create an invite code first, then share it with your partner in the channel you both already use.",
glyphCategoryId = "communication",
primaryAction = FinishedEmptyStateAction("Create invite", AppRoute.CREATE_INVITE),
secondaryAction = FinishedEmptyStateAction("Enter a code", AppRoute.ACCEPT_INVITE),
accent = CloserPalette.PurpleDeep,
details = listOf(
"Use one code instead of a temporary sample invite.",
"Keep the message short enough to send anywhere.",
"Give your partner a single next step."
),
onNavigate = onNavigate
)
}
@Preview
@Composable
fun EmailInviteScreenPreview() {
EmailInviteScreen()
}

18
functions/dist/couples/acceptInviteCallable.js vendored
View File

@ -60,6 +60,8 @@ const admin = __importStar(require("firebase-admin"));
* 6. Update both user documents with the new coupleId.
* 7. Mark the invite as accepted.
*/
const ACCEPT_RATE_LIMIT_WINDOW_MS = 60 * 60 * 1000; // 1 hour
const ACCEPT_RATE_LIMIT_MAX = 10; // 10 attempts per hour per user
exports.acceptInviteCallable = functions.https.onCall(async (data, context) => {
var _a, _b, _c;
const callerId = (_a = context.auth) === null || _a === void 0 ? void 0 : _a.uid;
@ -71,6 +73,22 @@ exports.acceptInviteCallable = functions.https.onCall(async (data, context) => {
throw new functions.https.HttpsError('invalid-argument', 'code is required.');
}
const db = admin.firestore();
// Rate-limit accept attempts per caller to prevent brute-forcing 6-char codes.
const windowStart = admin.firestore.Timestamp.fromMillis(admin.firestore.Timestamp.now().toMillis() - ACCEPT_RATE_LIMIT_WINDOW_MS);
const recentAttempts = await db
.collection('users').doc(callerId)
.collection('invite_attempts')
.where('attemptedAt', '>=', windowStart)
.count()
.get();
if (recentAttempts.data().count >= ACCEPT_RATE_LIMIT_MAX) {
throw new functions.https.HttpsError('resource-exhausted', 'Too many code attempts. Try again later.');
}
// Record this attempt before doing any work, so failures also count.
await db.collection('users').doc(callerId).collection('invite_attempts').add({
attemptedAt: admin.firestore.FieldValue.serverTimestamp(),
code,
});
// Caller must not already be paired.
const callerDoc = await db.collection('users').doc(callerId).get();
if (callerDoc.exists && ((_b = callerDoc.data()) === null || _b === void 0 ? void 0 : _b.coupleId) != null) {

2
functions/dist/couples/acceptInviteCallable.js.map vendored
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@ -1 +1 @@
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22
functions/src/couples/acceptInviteCallable.ts
View File

@ -25,6 +25,9 @@ import * as admin from 'firebase-admin'
* 6. Update both user documents with the new coupleId.
* 7. Mark the invite as accepted.
*/
const ACCEPT_RATE_LIMIT_WINDOW_MS = 60 * 60 * 1000 // 1 hour
const ACCEPT_RATE_LIMIT_MAX = 10 // 10 attempts per hour per user
export const acceptInviteCallable = functions.https.onCall(async (data: any, context) => {
const callerId = context.auth?.uid
if (!callerId) {
@ -38,6 +41,25 @@ export const acceptInviteCallable = functions.https.onCall(async (data: any, con
const db = admin.firestore()
// Rate-limit accept attempts per caller to prevent brute-forcing 6-char codes.
const windowStart = admin.firestore.Timestamp.fromMillis(
admin.firestore.Timestamp.now().toMillis() - ACCEPT_RATE_LIMIT_WINDOW_MS
)
const recentAttempts = await db
.collection('users').doc(callerId)
.collection('invite_attempts')
.where('attemptedAt', '>=', windowStart)
.count()
.get()
if (recentAttempts.data().count >= ACCEPT_RATE_LIMIT_MAX) {
throw new functions.https.HttpsError('resource-exhausted', 'Too many code attempts. Try again later.')
}
// Record this attempt before doing any work, so failures also count.
await db.collection('users').doc(callerId).collection('invite_attempts').add({
attemptedAt: admin.firestore.FieldValue.serverTimestamp(),
code,
})
// Caller must not already be paired.
const callerDoc = await db.collection('users').doc(callerId).get()
if (callerDoc.exists && callerDoc.data()?.coupleId != null) {

100
iphone/Closer/Pairing/PairingViews.swift
View File

@ -5,7 +5,6 @@ import SwiftUI
struct PairPromptView: View {
@State private var showCreateInvite = false
@State private var showAcceptInvite = false
@State private var showEmailInvite = false
var body: some View {
NavigationStack {
@ -29,17 +28,12 @@ struct PairPromptView: View {
VStack(spacing: CloserSpacing.lg) {
Button(action: { showCreateInvite = true }) {
Label("Create Invite Code", systemImage: "plus.circle.fill")
Label("Invite my partner", systemImage: "plus.circle.fill")
}
.buttonStyle(PrimaryButtonStyle())
Button(action: { showAcceptInvite = true }) {
Label("Enter Partner's Code", systemImage: "key.fill")
}
.buttonStyle(SecondaryButtonStyle())
Button(action: { showEmailInvite = true }) {
Label("Invite by Email", systemImage: "envelope.fill")
Label("Enter a code", systemImage: "key.fill")
}
.buttonStyle(SecondaryButtonStyle())
}
@ -54,9 +48,6 @@ struct PairPromptView: View {
.navigationDestination(isPresented: $showAcceptInvite) {
AcceptInviteView()
}
.navigationDestination(isPresented: $showEmailInvite) {
EmailInviteView()
}
}
}
}
@ -252,93 +243,6 @@ struct AcceptInviteView: View {
}
}
// MARK: - Email Invite
struct EmailInviteView: View {
@EnvironmentObject var appState: AppState
@State private var email = ""
@State private var isLoading = false
@State private var errorMessage: String?
@State private var successMessage: String?
var body: some View {
ScrollView {
VStack(spacing: CloserSpacing.xxl) {
VStack(spacing: CloserSpacing.sm) {
Image(systemName: "envelope.fill")
.font(.system(size: 44))
.foregroundColor(.closerPrimary)
Text("Invite by Email")
.font(CloserFont.title1)
.foregroundColor(.closerText)
Text("Send an invitation to your partner's email")
.font(CloserFont.callout)
.foregroundColor(.closerTextSecondary)
}
.padding(.top, CloserSpacing.xxl)
VStack(spacing: CloserSpacing.md) {
TextField("partner@example.com", text: $email)
.textContentType(.emailAddress)
.keyboardType(.emailAddress)
.autocapitalization(.none)
.disableAutocorrection(true)
.padding()
.background(Color.closerSurface)
.cornerRadius(CloserRadius.medium)
if let success = successMessage {
Text(success)
.font(CloserFont.callout)
.foregroundColor(.closerSuccess)
}
if let error = errorMessage {
Text(error)
.font(CloserFont.caption)
.foregroundColor(.closerDanger)
}
Button(action: sendInvite) {
if isLoading {
ProgressView().tint(.white)
} else {
Text("Send Invitation")
}
}
.buttonStyle(PrimaryButtonStyle(isDisabled: isLoading || email.isEmpty))
.disabled(isLoading || email.isEmpty)
}
}
.closerPadding()
}
.background(Color.closerBackground)
.navigationBarTitleDisplayMode(.inline)
}
private func sendInvite() {
// Email invite sends via Cloud Function or mail service
// For MVP, generate invite code and share system share sheet
guard !email.isEmpty else { return }
isLoading = true
errorMessage = nil
Task {
do {
let (code, _) = try await FirestoreService.shared.createInviteCallable()
successMessage = "Invitation sent! Share this code: \(code)"
} catch {
errorMessage = error.localizedDescription
}
isLoading = false
}
}
private func generateSixCharCode() -> String {
let chars = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
return String((0..<6).map { _ in chars.randomElement()! })
}
}
// MARK: - Invite Confirm
struct InviteConfirmView: View {

4
iphone/Closer/Settings/SettingsViews.swift
View File

@ -57,9 +57,9 @@ struct SettingsView: View {
}
NavigationLink {
EmailInviteView()
CreateInviteView()
} label: {
Label("Invite Partner", systemImage: "envelope")
Label("Invite Partner", systemImage: "square.and.arrow.up")
}
}