StudySmart/firestore.rules at main · bokaif/StudySmart · GitHub

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rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    function isAuthed() { return request.auth != null; }
    function myRole() { return get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role; }
    function isTeacher() { return isAuthed() && myRole() == 'teacher'; }

    match /users/{uid} {
      allow read: if isAuthed();
      allow create: if request.auth.uid == uid;
      allow update: if request.auth.uid == uid
                    && (!("role" in resource.data) || resource.data.role == null || request.resource.data.role == resource.data.role);
      allow delete: if false;
    }

    match /materials/{fileId} {
      allow read: if isAuthed();
      allow create, update, delete: if false;
    }

    match /forum_posts/{postId} {
      allow read: if isAuthed();
      allow create, update, delete: if false;
      match /replies/{replyId} {
        allow read: if isAuthed();
        allow create, update, delete: if false;
      }
    }

    match /analytics_events/{eventId} {
      allow read: if isTeacher();
      allow create, update, delete: if false;
    }
  }
}