我想验证/在我的后端解码令牌,然后检索从解码令牌用户的UID。令牌由客户机,作为一个字符串生成。后端成功地检索/数据集以火力地堡这使我相信,火力地堡被正确初始化,这样就不会成为问题。但是在运行时,似乎是导致崩溃的错误。
码:
public static void main(String[] args) throws IOException, ExecutionException, InterruptedException, FirebaseAuthException {
File credentialsFile = getFile();
FileInputStream serviceAccount = new FileInputStream(credentialsFile);
FirebaseOptions options = new FirebaseOptions.Builder()
.setCredentials(GoogleCredentials.fromStream(serviceAccount))
.setDatabaseUrl("***")
.build();
FirebaseApp.initializeApp(options);
String idToken = "***";
//LINE 43 IS BELOW
FirebaseToken decodedToken = FirebaseAuth.getInstance().verifyIdToken(idToken);
String uid = decodedToken.getUid();
System.out.println("UID: " + uid);
}
错误:
Exception in thread "main" java.lang.IllegalArgumentException
at com.google.api.client.repackaged.com.google.common.base.Preconditions.checkArgument(Preconditions.java:108)
at com.google.api.client.util.Preconditions.checkArgument(Preconditions.java:37)
at com.google.api.client.json.webtoken.JsonWebSignature$Parser.parse(JsonWebSignature.java:599)
at com.google.firebase.auth.FirebaseToken.parse(FirebaseToken.java:44)
at com.google.firebase.auth.FirebaseAuth$4.execute(FirebaseAuth.java:484)
at com.google.firebase.auth.FirebaseAuth$4.execute(FirebaseAuth.java:477)
at com.google.firebase.internal.CallableOperation.call(CallableOperation.java:36)
at com.google.firebase.auth.FirebaseAuth.verifyIdToken(FirebaseAuth.java:441)
at com.google.firebase.auth.FirebaseAuth.verifyIdToken(FirebaseAuth.java:415)
at App.main(App.java:43)
FAILURE: Build failed with an exception.
解:
问题是与正在由客户端生成的令牌,通过hiranya-jayathilaka指出了道路。这就是我正在生成令牌:
String idToken = FirebaseInstanceId.getInstance().getToken();
这是怎么回事应根据docs产生:
FirebaseUser mUser = FirebaseAuth.getInstance().getCurrentUser();
mUser.getIdToken(true)
.addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
public void onComplete(@NonNull Task<GetTokenResult> task) {
if (task.isSuccessful()) {
String idToken = task.getResult().getToken();
// Send token to your backend via HTTPS
// ...
} else {
// Handle error -> task.getException();
}
}
});