gramin-saathi/firestore.rules at main · FTS18/gramin-saathi · GitHub

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rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {

    // Helper function to check if user is authenticated
    function isAuthenticated() {
      return request.auth != null;
    }

    // Helper function to check if user owns the document
    function isOwner(userId) {
      return isAuthenticated() && request.auth.uid == userId;
    }

    // App artifacts collection (main app data)
    match /artifacts/{appId} {

      // Users collection - each user can only access their own data
      match /users/{userId}/{document=**} {
        allow read, write: if isOwner(userId);
      }

      // Blog posts collection (shared across all users)
      match /blog/{postId} {
        // Anyone authenticated can read blog metadata
        allow read: if isAuthenticated();
        // No direct writes - posts are hardcoded
        allow write: if false;

        // Likes subcollection - track who liked what
        match /likes/{likeUserId} {
          allow read: if isAuthenticated();
          allow create, delete: if isOwner(likeUserId);
          allow update: if false;
        }

        // Comments subcollection
        match /comments/{commentId} {
          // Anyone authenticated can read comments
          allow read: if isAuthenticated();
          // Only authenticated users can create comments
          allow create: if isAuthenticated()
            && request.resource.data.userId == request.auth.uid
            && request.resource.data.text is string
            && request.resource.data.text.size() > 0
            && request.resource.data.text.size() <= 500;
          // Only comment owner can update/delete
          allow update, delete: if isAuthenticated()
            && resource.data.userId == request.auth.uid;
        }
      }

      // Community Posts - under artifacts/{appId}
      match /community_posts/{postId} {
        allow read: if true;
        allow create: if isAuthenticated();
        allow update: if isAuthenticated();
        allow delete: if isAuthenticated() && resource.data.authorId == request.auth.uid;

        // Comments subcollection
        match /comments/{commentId} {
          allow read: if true;
          allow create: if isAuthenticated();
          allow delete: if isAuthenticated() && resource.data.userId == request.auth.uid;
        }
      }
    }

    // Community Posts - public read, authenticated write (root level fallback)
    match /community_posts/{postId} {
      allow read: if true;
      allow create: if isAuthenticated();
      allow update: if isAuthenticated();
      allow delete: if isAuthenticated() && resource.data.authorId == request.auth.uid;

      // Comments subcollection
      match /comments/{commentId} {
        allow read: if true;
        allow create: if isAuthenticated();
        allow delete: if isAuthenticated() && resource.data.userId == request.auth.uid;
      }
    }

    // Deny all other access by default
    match /{document=**} {
      allow read, write: if false;
    }
  }
}