esn-speakers-list/firestore.rules at master · heddendorp/esn-speakers-list · GitHub

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

  	function isCt() {
      return get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isCt == true || get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isAdmin == true;
    }

    function isCtOrCreator(entry) {
    	let isCreator = entry.user.uid == request.auth.uid;
    	return isCreator || isCt();
    }

    function isCtOrUser(user) {
    	let isUser = user.uid == request.auth.uid;
    	return isUser || isCt();
    }

    match /{path=**}/entries/{entry} {
      allow read: if isCt();
    }

    match /users/{user} {
    	allow read: if isCtOrUser(resource.data);
      allow update: if (request.resource.data.diff(resource.data).affectedKeys().hasOnly(['selectedRole', 'hidePersonalData'])) || isCt();
    }

    match /lists/{list} {
    	allow read: if (request.auth != null && resource.data.isVisible) || isCt();
      allow write: if isCt();
      match /entries/{entry} {
      		allow read: if request.auth != null;
      		allow create: if (request.auth != null && get(/databases/$(database)/documents/lists/$(list)).data.isOpen) || isCt();
      		allow update: if isCtOrCreator(resource.data);
          match /reactions/{reaction} {
          	allow read: if request.auth != null;
          	allow create: if (request.auth != null && get(/databases/$(database)/documents/lists/$(list)).data.isOpen) || isCt();
      			allow update: if isCtOrCreator(resource.data);
          }
          match /answers/{answer} {
          	allow read: if request.auth != null;
            allow create: if isCt();
          }
      }
    }
  }
}