Question

我希望在手机验证之前验证firebase中存在的用户电话号码。如果用户存在，那么只有otp验证才会启动显示错误。请帮助我

Answer 1

因此，您希望通过从管理面板输入来限制用户群。如果是，那么如果输入no，则使用匿名身份验证来读取数据库。存在于数据库中，然后只继续手机验证并链接这些匿名和电话帐户。

Answer 2

    public class PhoneNumberAuthentication extends AppCompatActivity {

private static final int RC_SIGN_IN = 123;
@Override
protected void onCreate( Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FirebaseApp.initializeApp(this);
    FirebaseAuth auth = FirebaseAuth.getInstance();
    if (auth.getCurrentUser() != null) {
        // already signed in
        startActivity(new Intent(PhoneNumberAuthentication.this, MainActivity.class));
        finish();
    } else {
        // not signed in
        startActivityForResult(
                AuthUI.getInstance()
                        .createSignInIntentBuilder()
                        .setAvailableProviders(
                                Arrays.asList(
                                          new AuthUI.IdpConfig.PhoneBuilder().build())).build(),
                RC_SIGN_IN);
    }
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    // RC_SIGN_IN is the request code you passed into startActivityForResult(...) when starting the sign in flow.
    if (requestCode == RC_SIGN_IN) {
        IdpResponse response = IdpResponse.fromResultIntent(data);

        // Successfully signed in
        if (resultCode == RESULT_OK) {
            startActivity(new Intent(PhoneNumberAuthentication.this, MainActivity.class));
            finish();
        } else {
            // Sign in failed
            if (response == null) {
                // User pressed back button
                //showSnackbar(R.string.sign_in_cancelled);
                return;
            }

            if (response.getError().getErrorCode() == ErrorCodes.NO_NETWORK) {
                // showSnackbar(R.string.no_internet_connection);
                return;
            }

            // showSnackbar(R.string.unknown_error);
            // Log.e(TAG, "Sign-in error: ", response.getError());
        }
    }
}}

还要添加build.gradle

  implementation 'com.firebaseui:firebase-ui-auth:3.2.2'

Answer 3

您可以使用Admin SDK按phoneNumber查找用户： admin.auth().getUserByPhoneNumber(phoneNumber)

这将帮助您检查具有此电话号码的用户记录是否已存在。

访问documentation了解详情。

您可以创建一个HTTP端点来执行此操作。

电话验证前的用户验证

3 个答案: