297 lines
14 KiB
Plaintext
297 lines
14 KiB
Plaintext
rules_version = '2';
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service cloud.firestore {
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match /databases/{database}/documents {
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// ── Helpers ──────────────────────────────────────────────────────────────
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function isSignedIn() {
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return request.auth != null;
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}
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function isOwner(uid) {
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return isSignedIn() && request.auth.uid == uid;
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}
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function isCouplesMember(coupleId) {
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return isSignedIn()
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&& request.auth.uid in
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get(/databases/$(database)/documents/couples/$(coupleId)).data.userIds;
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}
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function isValidInviteCode(code) {
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// Code must be exactly 6 alphanumeric characters
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return code.matches('^[a-zA-Z0-9]{6}$');
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}
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function isNotAlreadyPaired() {
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// Check that the requesting user does not already have a coupleId.
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// A missing user doc is treated as unpaired.
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let userPath = /databases/$(database)/documents/users/$(request.auth.uid);
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return !exists(userPath) || get(userPath).data.coupleId == null;
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}
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// Admin SDK / Cloud Functions bypass Firestore rules, so any operation that
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// must only be performed server-side is denied for all direct client writes.
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function isImmutable(fields) {
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// Helper to check that certain fields haven't changed during an update
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// fields: list of field names that should be immutable
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if (resource == null) {
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// Create operation - nothing to check
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return true;
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}
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return fields.every(f => resource.data[f] == request.resource.data[f]);
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}
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function isValidSwipeAction(action) {
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return action == 'love' || action == 'maybe' || action == 'skip';
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}
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// ── Users ─────────────────────────────────────────────────────────────────
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// Each user owns exactly their own document.
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// hasPremium is server-only: clients may not write it directly.
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match /users/{uid} {
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allow read: if isOwner(uid);
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allow create: if isOwner(uid)
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&& !request.resource.data.keys().hasAny(['hasPremium']);
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allow update: if isOwner(uid)
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&& !request.resource.data.diff(resource.data).affectedKeys().hasAny(['hasPremium']);
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}
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// ── Date ideas (read-only catalog) ─────────────────────────────────────────
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// Curated date ideas are readable by any authenticated user.
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// Writes are server-only (admin SDK / Cloud Functions seeding).
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match /date_ideas/{dateIdeaId} {
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allow read: if isSignedIn();
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allow create, update, delete: if false;
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}
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// ── Invite codes ──────────────────────────────────────────────────────────
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// Invite system with proper ownership, validation, and expiry checks.
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match /invites/{code} {
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// Read: only inviter, except when accepting (user is not inviter, pending, and unpaired)
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allow read: if isSignedIn()
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&& (
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// Inviter can always read
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request.auth.uid == resource.data.inviterUserId
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||
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// Accepting user: not the inviter, invite is still pending, and user is unpaired
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(
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request.auth.uid != resource.data.inviterUserId
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&& resource.data.status == 'pending'
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&& !('coupleId' in resource.data)
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&& isNotAlreadyPaired()
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)
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)
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// Expired invites should not be readable by non-inviters
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&& (request.auth.uid == resource.data.inviterUserId || request.time < resource.data.expiresAt);
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// Create: ownership, code format, and required fields validation.
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// hasOnly prevents injecting unrelated fields (e.g. coupleId) at creation.
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allow create: if isSignedIn()
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&& request.resource.data.inviterUserId == request.auth.uid
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&& isValidInviteCode(code)
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&& isValidInviteCode(request.resource.data.code)
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&& request.resource.data.code == code
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&& request.resource.data.status == 'pending'
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&& request.resource.data.expiresAt is timestamp
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&& request.time < request.resource.data.expiresAt
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&& request.resource.data.keys().hasAll(['inviterUserId', 'code', 'status', 'expiresAt'])
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&& request.resource.data.keys().hasOnly(['inviterUserId', 'code', 'status', 'expiresAt']);
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// Update (accept): proper validation for changing status to accepted.
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// If coupleId is supplied, it must reference an existing couple where
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// the acceptor is a member. (Server-side creation bypasses rules.)
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allow update: if isSignedIn()
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&& resource.data.status == 'pending'
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// Cannot accept your own invite
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&& request.auth.uid != resource.data.inviterUserId
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// Must be the acceptor
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&& request.resource.data.acceptorUserId == request.auth.uid
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// Status must change to accepted
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&& request.resource.data.status == 'accepted'
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// Acceptance timestamp must be set and be a Firestore timestamp
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&& request.resource.data.acceptedAt != null
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&& request.resource.data.acceptedAt is timestamp
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// No other fields should be modified in this update
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&& request.resource.data.keys().hasOnly(
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['status', 'acceptorUserId', 'acceptedAt', 'coupleId'])
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// Expired invites cannot be accepted
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&& request.time < resource.data.expiresAt
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// coupleId, if provided, must point to a real couple that includes the acceptor
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&& (
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!('coupleId' in request.resource.data)
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|| (
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request.resource.data.coupleId != null
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&& exists(/databases/$(database)/documents/couples/$(request.resource.data.coupleId))
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&& request.auth.uid in get(/databases/$(database)/documents/couples/$(request.resource.data.coupleId)).data.userIds
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)
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);
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}
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// ── Couples ───────────────────────────────────────────────────────────────
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// Only the two members of a couple may read couple data.
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// Writes are restricted by field ownership and immutability.
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match /couples/{coupleId} {
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// Read: both members can read
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allow read: if isCouplesMember(coupleId);
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// Create: only via invite flow (server-side or admin SDK).
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// Admin SDK bypasses rules; direct client writes are denied.
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allow create: if false;
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// Update: field-level restrictions
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// - user IDs are immutable (cannot change who is in the couple)
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// - invite code is immutable (cannot change the code)
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// - createdAt is immutable (cannot change when the couple was formed)
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// - streakCount and lastStreakAt: server-only (via Cloud Functions or admin SDK)
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// - All other fields: both members can update normally
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allow update: if isCouplesMember(coupleId)
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// Check immutable fields haven't changed
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&& isImmutable(['userIds', 'inviteCode', 'createdAt'])
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// streakCount and lastStreakAt must not be modified by clients
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&& !request.resource.data.diff(resource.data).affectedKeys().hasAny(['streakCount', 'lastStreakAt']);
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// Delete: server-only (admin SDK only). Admin SDK bypasses rules.
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allow delete: if false;
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match /sessions/{sessionId} {
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// Read: both members can read
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allow read: if isCouplesMember(coupleId);
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// Create: either member can start a session
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allow create: if isCouplesMember(coupleId)
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&& request.resource.data.startedByUserId == request.auth.uid;
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// Update: only the user who started the session can update it, OR valid status transitions.
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// startedByUserId is immutable for direct client writes.
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allow update: if isCouplesMember(coupleId)
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// Either the original starter can update
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&& (resource.data.startedByUserId == request.auth.uid
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// Or status transition is valid: active → completed
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|| (resource.data.status == 'active' && request.resource.data.status == 'completed'))
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// startedByUserId cannot be changed by clients
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&& request.resource.data.startedByUserId == resource.data.startedByUserId
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// Only a fixed set of fields may change
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&& request.resource.data.diff(resource.data).affectedKeys().hasOnly(['status', 'completedAt']);
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// Delete: server-only (admin SDK). Admin SDK bypasses rules.
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allow delete: if false;
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}
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// Question threads live under the couple document.
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match /question_threads/{threadId} {
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// Read: both members can read
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allow read: if isCouplesMember(coupleId);
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// Create: either member can create a thread
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allow create: if isCouplesMember(coupleId)
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&& request.resource.data.createdByUserId == request.auth.uid;
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// Update: valid state transitions only, currentIndex only incrementable
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allow update: if isCouplesMember(coupleId)
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// Status transitions must be valid: NOT_STARTED → ANSWERED_BY_ONE → REVEALED → COMPLETED
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&& (resource.data.status == 'NOT_STARTED' && request.resource.data.status == 'ANSWERED_BY_ONE'
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|| resource.data.status == 'ANSWERED_BY_ONE' && request.resource.data.status == 'REVEALED'
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|| resource.data.status == 'REVEALED' && request.resource.data.status == 'COMPLETED'
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|| resource.data.status == 'ANSWERED_BY_ONE' && request.resource.data.status == 'COMPLETED')
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// currentIndex can only be incremented, never decremented or reset
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&& request.resource.data.currentIndex != null
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&& (resource.data.currentIndex == null || request.resource.data.currentIndex >= resource.data.currentIndex)
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// No other fields should change
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&& request.resource.data.diff(resource.data).affectedKeys().hasOnly(['status', 'currentIndex']);
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// Delete: server-only (admin SDK). Admin SDK bypasses rules.
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allow delete: if false;
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// Answers: each user writes their own; both members can read all answers.
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match /answers/{userId} {
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allow write: if isOwner(userId);
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allow read: if isCouplesMember(coupleId);
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}
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// Discussion messages: any couple member can read, but only the author can write/update/delete
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match /messages/{messageId} {
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allow read: if isCouplesMember(coupleId);
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allow create: if isCouplesMember(coupleId)
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&& request.resource.data.authorUserId == request.auth.uid;
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allow update: if isCouplesMember(coupleId)
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&& resource.data.authorUserId == request.auth.uid;
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allow delete: if isCouplesMember(coupleId)
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&& resource.data.authorUserId == request.auth.uid;
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}
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// Reactions: any couple member can read, but only the creator can write/update/delete
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match /reactions/{reactionId} {
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allow read: if isCouplesMember(coupleId);
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allow create: if isCouplesMember(coupleId)
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&& request.resource.data.userId == request.auth.uid;
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allow update: if isCouplesMember(coupleId)
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&& resource.data.userId == request.auth.uid;
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allow delete: if isCouplesMember(coupleId)
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&& resource.data.userId == request.auth.uid;
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}
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}
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// Date swipes: per-couple, per-date partner swipe state.
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match /date_swipes/{dateIdeaId} {
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// Read: both couple members can read the shared swipe document.
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allow read: if isCouplesMember(coupleId);
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// Create/Update: each member can only write their own action entry.
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// The payload must contain an actions.{uid} object with a valid action.
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allow create, update: if isCouplesMember(coupleId)
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// The path to the current user's action must exist and be the only action written
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&& request.resource.data.keys().hasOnly(['actions'])
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&& request.resource.data.actions.keys().hasOnly([request.auth.uid])
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&& request.resource.data.actions[request.auth.uid].keys().hasOnly(['action', 'swipedAt'])
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&& isValidSwipeAction(request.resource.data.actions[request.auth.uid].action)
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&& request.resource.data.actions[request.auth.uid].action != null
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&& request.resource.data.actions[request.auth.uid].swipedAt is timestamp;
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// Delete: server-only (admin SDK). Admin SDK bypasses rules.
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allow delete: if false;
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}
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// Date matches: revealed mutual love matches.
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// Clients can read; creation of a match is performed by a Cloud Function
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// after both partners have swiped 'love'. Direct client writes are denied.
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match /date_matches/{matchId} {
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allow read: if isCouplesMember(coupleId);
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allow create, update, delete: if false;
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}
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// Date plan preferences: per-partner preferences for building date plans.
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// Both members can read; each member can write their own preference.
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match /date_plan_preferences/{userId} {
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allow read: if isCouplesMember(coupleId);
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allow create, update: if isCouplesMember(coupleId)
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&& request.resource.data.keys().hasOnly(['actions'])
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&& request.resource.data.actions.keys().hasOnly([request.auth.uid])
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&& request.resource.data.actions[request.auth.uid].keys().hasOnly(['action', 'swipedAt'])
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&& request.resource.data.actions[request.auth.uid].action != null
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&& request.resource.data.actions[request.auth.uid].swipedAt is timestamp;
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allow delete: if false;
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}
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// Date plans: complete plans assembled from partner preferences.
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// Both members can read; create/update/delete by both members.
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match /date_plans/{planId} {
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allow read: if isCouplesMember(coupleId);
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allow create, update, delete: if isCouplesMember(coupleId);
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}
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// Bucket list items: shared list for both partners.
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// Both members can read; create/update/delete by both members.
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match /bucket_list/{itemId} {
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allow read: if isCouplesMember(coupleId);
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allow create, update, delete: if isCouplesMember(coupleId);
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}
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}
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}
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}
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