錯誤原因：java.io.IOException：{“錯誤”：{“代碼”：403，“消息”：“權限被拒絕。無法執行此操作”}}

Question

我收到此錯誤原因：java.io.IOException：{“錯誤”：{“代碼”：403，“消息”：“權限被拒絕。無法執行此操作”}}或用戶沒有訪問權限這個 object。 當我嘗試在 firebase firestore 中上傳數據並且我已經在 firestore 規則中授予權限時。

這是我的代碼

package com.example.db1;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;


import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;


import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;


public class Register extends AppCompatActivity {

    private static final String TAG = "MyActivity";
    EditText Name, Email, Contact,Password;
    Button Register;
    ImageView user_image;
    FirebaseFirestore db;
    FirebaseAuth mAuth;
    ProgressBar progressBar;


    String user_id;
    Uri download_uri;
    StorageReference storageReference;
    Bitmap compressed;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);

        Name = findViewById(R.id.name);
        Email = findViewById(R.id.email);
        Contact = findViewById(R.id.contact);
        Register = findViewById(R.id.register);
        Password = findViewById(R.id.password);
        user_image = findViewById(R.id.im1);
        progressBar = findViewById(R.id.pb1);

        progressBar.setVisibility(View.GONE);

        db = FirebaseFirestore.getInstance();
        mAuth = FirebaseAuth.getInstance();

        storageReference = FirebaseStorage.getInstance().getReference();

        user_image.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {


                    if (ContextCompat.checkSelfPermission(Register.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {


                        Toast.makeText(Register.this, "Permission Denied", Toast.LENGTH_LONG).show();


                        ActivityCompat.requestPermissions(Register.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
                    } else {
                        choseImage();
                    }
                } else {
                    choseImage();
                }


            }
        });

        Register.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                final String name = Name.getText().toString().trim();
                final String email = Email.getText().toString().trim();
                final String contact = Contact.getText().toString().trim();
                final String pass = Password.getText().toString().trim();



                if(!TextUtils.isEmpty(email) && !TextUtils.isEmpty(name) && !TextUtils.isEmpty(contact) && !TextUtils.isEmpty(pass) && user_image!=null){

                    progressBar.setVisibility(View.VISIBLE);

                    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();


                    compressed.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream);


                    byte[] thumbData = byteArrayOutputStream.toByteArray();


                    UploadTask image_path = storageReference.child("user_image").child(user_id + ".jpg").putBytes(thumbData);


                    image_path.addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {


                        @Override


                        public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {

                            if (task.isSuccessful()) {
                                storeData(task, name, email, contact, pass);
                            } else {
                                String error = task.getException().getMessage();
                                Toast.makeText(Register.this, "(IMAGE Error) : " + error, Toast.LENGTH_LONG).show();
                            }
                        }

                    });
                }
                else{
                    progressBar.setVisibility(View.GONE);
                    Toast.makeText(Register.this,"Please fill all fields",Toast.LENGTH_SHORT).show();
                }
            }
        });
    }

    private void storeData(Task<UploadTask.TaskSnapshot> task, String name, String email, String contact, String pass) {

        if (task != null) {
            download_uri = task.getResult().getUploadSessionUri();

            Map<String, Object> user = new HashMap<>();
            user.put("mName", name);
            user.put("mEmail", email);
            user.put("mContact", contact);
            user.put("mPassword", pass);
            user.put("userImage",download_uri.toString());

            db.collection("users").add(user).addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                @Override
                public void onSuccess(DocumentReference documentReference) {
                    Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
                    Toast.makeText(Register.this,"User data save successfully",Toast.LENGTH_SHORT).show();
                    startActivity(new Intent(Register.this,Result.class));
                }
            })
                    .addOnFailureListener(new OnFailureListener() {
                        @Override
                        public void onFailure(@NonNull Exception e) {
                            Log.w(TAG, "Error adding document", e);
                            Toast.makeText(Register.this,"User data is not Save",Toast.LENGTH_SHORT).show();
                        }
                    });
        } else {
            Toast.makeText(Register.this,"Error in Data Upload",Toast.LENGTH_SHORT).show();
        }
    }

    private void choseImage() {

        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("image/*");
        startActivityForResult(Intent.createChooser(intent,"pick an image"),1);
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == 1 && resultCode== RESULT_OK) {

            try {
                InputStream inputStream = getContentResolver().openInputStream(data.getData());
                compressed = BitmapFactory.decodeStream(inputStream);
                user_image.setImageBitmap(compressed);
            }catch (FileNotFoundException e){
                e.printStackTrace();
            }
        }
    }
}

   

Answer 1

看看你的Firestore 規則是非常值得的：

基本規則由指定文檔路徑的匹配語句和允許讀取指定數據時詳細說明的允許表達式組成：

service cloud.firestore {
  match /databases/{database}/documents {

    // Match any document in the 'cities' collection
    match /cities/{city} {
      allow read: if <condition>;
      allow write: if <condition>;
    }
  }
}

您的錯誤指向此注釋：

您只能訪問您的安全規則明確允許您訪問的文檔。

例如：在@Alex Mamo 提到的問題中，解決方案是：

service firebase.storage {
 match /b/{bucket}/o {
  match /{userId} {
    match /{allPaths=**}{
     allow read, write: if request.auth.uid == userId;
   } 
  }
 }
}

Answer 2

對於 kotlin、go 規則，firebase 存儲和更改用引號標記的位置...允許讀取，寫入：“如果 request.auth;=null;”