我试图建立一个规则来获取火星数据,这可以通过谷歌签名的客户端访问。 所以我面临的问题是当我使用这条规则时
match /helpers/customer/data/{document=**}{
allow read: if request.auth != null;
}
logcat中出现错误
onFailure处: Errorcom.google.firebase.firestore.FirebaseFirestoreException: PERMISSION_DENIED:权限丢失或不足。
它也仅在我使用
时起作用match /helpers/customer/data/{document=**}{
allow read: if true;
}
这意味着路径是写的。
GoogleSignInAccount acct = GoogleSignIn.getLastSignedInAccount(this);
if(acct != null){
Log.i(TAG, "onCreate: Database Working");
mFirestoreDB
.get()
.addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
@Override
public void onComplete(@NonNull Task<QuerySnapshot> task) {
if (task.isSuccessful()) {
for (DocumentSnapshot document : task.getResult()) {
Log.d(TAG, document.getId() + " => " + document.getData());
}
} else {
Log.d(TAG, "Error getting documents: ", task.getException());
}
}
});
}else{
Log.i(TAG, "onCreate: Database not Working");
}
我需要的是一条规则,我只允许Google用户登录。
答案 0 :(得分:2)
使用Google登录不会自动使用Firebase对用户进行签名。在安全规则设置auth
变量之前,您还需要使用Firebase身份验证对其进行签名。
来自Firebase documentation in signing in with Google:
private void firebaseAuthWithGoogle(GoogleSignInAccount acct) { Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId()); AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null); mAuth.signInWithCredential(credential) .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() { @Override public void onComplete(@NonNull Task<AuthResult> task) { if (task.isSuccessful()) { // Sign in success, update UI with the signed-in user's information Log.d(TAG, "signInWithCredential:success"); FirebaseUser user = mAuth.getCurrentUser(); updateUI(user); } else { // If sign in fails, display a message to the user. Log.w(TAG, "signInWithCredential:failure", task.getException()); Toast.makeText(GoogleSignInActivity.this, "Authentication failed.", Toast.LENGTH_SHORT).show(); updateUI(null); } // ... } }); }
但我建议你阅读我链接的整个页面。