Stopor/firestore.rules at main · speedypleath/Stopor · GitHub

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rules_version = '2';

service cloud.firestore {

  match /databases/{database}/documents {
    function isValidUser() {
      return exists(/databases/$(database)/documents/users/$(request.auth.uid));
    }

    match /{document=**} {
      allow read: if
        request.auth != null;
      allow write: if false;
    }

    match /users/{userId} {
      allow delete: if
        request.auth.uid == userId;
      allow update: if
        request.resource.data.diff(resource.data).affectedKeys().hasOnly(['followersCount']) ||
        request.auth.uid == userId;
      allow write: if
        debug(request.auth) != null &&
        debug(resource) == null &&
        userId == request.auth.uid;
    }

    match /events/{eventId} {
      allow delete: if
        request.auth.uid == resource.data.organiser &&
        isValidUser();
      allow update: if
        request.resource.data.diff(resource.data).affectedKeys().hasOnly(['followersCount']) ||
        (request.auth.uid == resource.data.organiser &&
        !(request.resource.data.facebookId in resource.data) &&
        isValidUser());
      allow write: if
        request.auth != null && resource == null &&
        isValidUser();
    }

    match /artists/{artistId} {
      allow delete: if
        request.auth.uid == resource.data.userId &&
        isValidUser();
      allow update: if
        request.resource.data.diff(resource.data).affectedKeys().hasOnly(['followersCount']) ||
        (request.auth.uid == resource.data.userId &&
        resource.data.spotifyId == request.resource.data.spotifyId &&
        resource.data.userId == request.auth.uid &&
        isValidUser());
      allow write: if
        request.auth != null && resource == null &&
        isValidUser();
    }

    match /following/{userId}/{document=**} {
      allow delete: if
        request.auth.uid == userId;
      allow update: if
        request.auth.uid == userId;
      allow write: if
        request.auth != null &&
        resource == null &&
        userId == request.auth.uid;
    }

    match /participation/{participationId} {
      allow write: if true;
    }
  }
}