我为我的应用设置了firebase存储空间,并在应用和firebase控制台上添加了匿名身份验证代码。
它起初工作,但我不知道为什么它停止工作,说用户没有访问对象的权限
匿名身份验证设置正确,我确实看到它正常工作,代码几乎就像Google Firebase文档
logcat的:
D / FirebaseAuth:signInAnonymously:onComplete:true
d / FirebaseAuth: onAuthStateChanged:signed_in :(随机身份验证用户ID)
...当我从firebase请求该项目时
E / StorageUtil:获取令牌java.util.concurrent.ExecutionException时出错:com.google.firebase.FirebaseException:发生了内部错误。 [遇到内部错误。] I / DpmTcmClient:RegisterTcmMonitor from:com.android.okhttp.TcmIdleTimerMonitor W / NetworkRequest:no auth 请求的标记E / StorageException:发生了StorageException。 用户无权访问此对象。 代码:-13021 HttpResult:403
有人可以帮忙吗?
声明变量
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;
on 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());
}
我也使用标准安全规则:
match /{allPaths=**} {
allow read, write: if request.auth != null;
}
答案 0 :(得分:4)
所以我在signInAnonymously
之前添加了一个注销代码mAuth.signOut();
并完成了!
感谢大家的帮助!
编辑:我发现了另一种方法,它比退出并再次出现更好(导致firebase控制台上数百名未使用的匿名用户,而且由于该应用尚未投入生产,将有数百万)。 / p>
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。
答案 1 :(得分:3)
消息“W / NetworkRequest:没有请求的身份验证令牌”是调试此问题的关键。
此日志消息表示Firebase存储未在当前上下文中看到任何登录。这包括匿名登录。这意味着没有授权传递给后端,并且允许这样做的唯一方法是将规则设置为完全开放(公共访问),这是不推荐的(见下文)。
//this sets completely open access to your data
allow read, write;
我会检查您登录的代码,并确保在任何存储操作完成之前成功完成。 如果您确定您的身份验证代码是正确的,请尝试resetting data on the device,这样就不会有保存的状态来搞乱应用程序的授权信息。
答案 2 :(得分:0)
您可能需要在firebase控制台中检查 RULES 的存储空间。默认情况下,它仅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;
答案 3 :(得分:0)
有时它与firebase数据库断开连接,所以通过firebase辅助工具在android studio中使用firebase身份验证连接你的应用程序。