Firebase 突然停止工作，使用匿名身份验证

Question

我已经为我的应用程序设置了 firebase 存储，并在应用程序和 firebase 控制台上添加了匿名身份验证代码。

一开始是可以的，不知道为什么就停止了，说用户没有访问该对象的权限

匿名身份验证设置正确，我确实看到它在工作，代码几乎像 Google Firebase 文档

logcat:

D/FirebaseAuth: signInAnonymously:onComplete:true
D/FirebaseAuth: onAuthStateChanged:signed_in: (Random auth user id)

...当我从 firebase 请求该项目时

E/StorageUtil: error getting token java.util.concurrent.ExecutionException: com.google.firebase.FirebaseException: An internal error has occured. [Internal error encountered.] I/DpmTcmClient: RegisterTcmMonitor from: com.android.okhttp.TcmIdleTimerMonitor W/NetworkRequest: no auth token for request E/StorageException: StorageException has occurred. User does not have permission to access this object. Code: -13021 HttpResult: 403

有人可以帮忙吗？

声明变量

private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;

关于 OnCreate 方法

mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                // User is signed in
                Log.d("FirebaseAuth", "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                Log.d("FirebaseAuth", "onAuthStateChanged:signed_out");
            }
            // ...
        }
    };
    mAuth.signInAnonymously()
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d("FirebaseAuth", "signInAnonymously:onComplete:" + task.isSuccessful());

                    // If sign in fails, display a message to the user. If sign in succeeds
                    // the auth state listener will be notified and logic to handle the
                    // signed in user can be handled in the listener.
                    if (!task.isSuccessful()) {
                        Log.w("FirebaseAuth", "signInAnonymously", task.getException());
                        Toast.makeText(SingleMemeEditor.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    }

                    // ...
                }
            });

以及从存储中获取的方法：

    Bitmap bmp;
    final Context lContext = context; //getting the MainActivity Context
    final String lFileName = fileName; //filename to download
    final String lCatPath = catPath; //internal categorization folder

    FirebaseStorage storage = FirebaseStorage.getInstance();
    // Create a storage reference from our app
    StorageReference storageRef = storage.getReferenceFromUrl(context.getResources().getString(R.string.firebase_bucket));
    // Create a reference with an initial file path and name
    StorageReference filesRef = storageRef.child("files/" + fileName);
    try
    {
        final File localFile = File.createTempFile("images", "jpg");

        filesRef.getFile(localFile).addOnSuccessListener(new OnSuccessListener<FileDownloadTask.TaskSnapshot>()
        {
            @Override
            public void onSuccess(FileDownloadTask.TaskSnapshot taskSnapshot)
            {
                // Local temp file has been created
                File file = new File(getDirectory(lContext)
                        + File.separator + lCatPath + File.separator + lFileName);
                try
                {
                    Boolean b = file.createNewFile();
                    if(b)
                    {
                        FileInputStream in = new FileInputStream(localFile);
                        FileOutputStream out = new FileOutputStream(file);

                        // Transfer bytes from in to out
                        byte[] buf = new byte[(int)localFile.length()];
                        int len;
                        while ((len = in.read(buf)) > 0) {
                            out.write(buf, 0, len);
                        }
                        in.close();
                        out.close();
                    }
                            Drawable.createFromPath(file.getPath())).getBitmap());
                }
                catch (IOException ex)
                {
                    // Handle any errors
                    Log.e("CopyingFromTemp", ex.getMessage());
                }

            }
        }).addOnFailureListener(new OnFailureListener()
        {
            @Override
            public void onFailure(@NonNull Exception ex)
            {
                // Handle any errors
                Log.e("FirebaseDownloadError", ex.getMessage());
            }
        });
    }
    catch(Exception ex)
    {
        Log.e("FirebaseDownloadError", ex.getMessage());
    }

我也在使用标准安全规则：

match /{allPaths=**} {
      allow read, write: if request.auth != null;
    }

Answer 1

您可能需要检查您的 RULES 以便在 Firebase 控制台中存储。默认情况下，它设置为仅允许经过身份验证的用户像这样

  allow read, write: if request.auth != null;

Answer 2

消息“W/NetworkRequest：请求没有授权令牌”是调试此问题的关键。

此日志消息表示 Firebase 存储在当前上下文中未看到任何登录。这包括匿名登录。这意味着没有授权被传递到后端，唯一允许的方法是将规则设置为完全开放（public 访问），这是不推荐的（见下文）。

 //this sets completely open access to your data
 allow read, write;

我会检查您的登录代码并确保它在任何存储操作完成之前成功完成。如果您确定您的授权代码是正确的，请尝试 resetting data on the device 这样就没有保存的状态可能会弄乱应用程序的授权信息。

Answer 3

正如 Benjamin Wulfe 所暗示的，我删除了应用程序在 phone 上的数据并且它起作用了，这意味着某种令牌数据存储在 phone 上并且 Anonymous Auth 正在变老会话数据。

所以我在 signInAnonymously 之前添加了退出代码

mAuth.signOut();

完成！

感谢大家的帮助！

编辑：我找到了另一种比注销再登录更好的方法（这会导致 firebase 控制台上有数百个未使用的匿名用户，而且由于该应用程序尚未投入生产，本来会有数百万） .

这就是我所做的：

if (mAuth.getCurrentUser() != null)
        {
            mAuth.getCurrentUser().reload();
        }
        else
        {
            mAuth.signInAnonymously()
                    .addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
                    {
                        @Override
                        public void onComplete(@NonNull Task<AuthResult> task)
                        {
                            Log.d("FirebaseAuth", "signInAnonymously:onComplete:" + task.isSuccessful());

                            // If sign in fails, display a message to the user. If sign in succeeds
                            // the auth state listener will be notified and logic to handle the
                            // signed in user can be handled in the listener.
                            if (!task.isSuccessful())
                            {
                                Log.w("FirebaseAuth", "signInAnonymously", task.getException());
                                Toast.makeText(MainActivity.this, "Authentication failed.",
                                        Toast.LENGTH_SHORT).show();
                            }
                            // ...
                        }
                    });
        }

这只会重新加载当前经过身份验证的（匿名）用户。

Answer 4

有时它会与 firebase 数据库断开连接，因此请通过 firebase 辅助工具在 android studio 中将您的应用程序与 firebase 身份验证连接起来。

Firebase 突然停止工作，使用匿名身份验证

Firebase suddenly stopped working, using Anonymous Auth

android

firebase

firebase-storage