What steps can you take to establish security protocols in firebase in order to protect against unauthorized data deletion

Here is how I have structured my firebase:

"ROOT": {
  "Group": {
    "User": {
      "Name": "",
      "Email": "",
      "Gender": "",
      "Mobile": "",
      "Time": ""
    }
  }
}

I am looking for a way to prevent users from deleting all data by running ref.remove() directly from the client browser inspector without any prompt.

What I want is to allow client scripts to execute firebase operations such as:

  1. Adding or updating data to /ROOT/, this means adding more child nodes under "Group" like Group2, Group3..., but they should not be able to delete this node.
  2. Adding, updating, and deleting data under /ROOT/Group/.

Could someone please advise on how to set up the security rules for this? Thank you.

javascriptjsonfirebasefirebase-securityfirebase-realtime-database

Answer №1

Take a look at Bolt!

Bolt serves as a helpful schema validation tool designed for Firebase.

By defining schemas for your Group and User, you can ensure that only authorized individuals have access to delete them.

type User {
 Name: String;
 Email: String;
 Gender: String;
 Mobile: String;
 Time: Number;
}

path /group/$groupid {
  read() = true;
  write() = this != null; // prevents deletion of existing data
}

path /group/$groupid/user/$uid is User {
  read() = true;
  write() = this != null; // prevents deletion of existing data
}

To implement the security rules, you can easily generate them from the command-line or upload them using the Firebase CLI. It's important to note that Bolt does not currently have support in the dashboard. Alternatively, you can manually copy and paste the generated rules into the dashboard if necessary.

Answer №2

Here are a few other useful Bolt functions that you may find helpful:

path /add { write() { add(this) } }                                                                                                                                         
path /edit { write() { edit(this) } }                                                                                                                                         
path /remove { write() { remove(this) } }                                                                                                                                         
path /add-or-edit { write() { add(this) || edit(this) }}                                                                                                                

add(ref) { prior(ref) == null }                                                                                                                                                
edit(ref) { prior(ref) != null && ref != null }                                                                                                                                 
remove(ref) { prior(ref) != null && ref == null }

To see an example file, check out this sample file along with its corresponding tests.

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