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Question by Unity_Suraj121 · Sep 16, 2020 at 07:53 PM · c#screenshotwwwformamazon

Unity editor sending screenshot to my bucket but Android build not sending screenshot.

Hi, I am able to send screenshot to bucket using the code in Editor. However my build is not sending the file. I am attaching the error from android log below:

2020-09-11 16:03:48.811 573 573 Error SELinux avc: denied { find } for interface=vendor.qti.hardware.servicetracker::IServicetracker sid=u:r:system_server:s0 pid=1292 scontext=u:r:system_server:s0 tcontext=u:object_r:default_android_hwservice:s0 tclass=hwservice_manager permissive=0 2020-09-11 16:03:49.003 27757 27785 Error Unity IOException: Sharing violation on path /storage/emulated/0/Android/data/com.mycompany.buckettry/files_ss 2020-09-11 16:03:49.003 27757 27785 Error Unity at System.IO.FileStream..ctor (System.String path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share, System.Int32 bufferSize, System.Boolean anonymous, System.IO.FileOptions options) [0x00000] in :0 2020-09-11 16:03:49.003 27757 27785 Error Unity at System.IO.File.Create (System.String path, System.Int32 bufferSize) [0x00000] in :0 2020-09-11 16:03:49.003 27757 27785 Error Unity at System.IO.File.WriteAllBytes (System.String path, System.Byte[] bytes) [0x00000] in :0 2020-09-11 16:03:49.003 27757 27785 Error Unity at AWSSDK.Examples._mys3+<sendscreenshot>d_21.MoveNext () [0x00000] in :0 2020-09-11 16:03:49.003 27757 27785 Error Unity at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in :0

Below is my code:

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 using Amazon.S3;
 using Amazon.S3.Model;
 using Amazon.Runtime;
 using System.IO;
 using System;
 using Amazon.S3.Util;
 using System.Collections.Generic;
 using Amazon.CognitoIdentity;
 using Amazon;
 
 namespace AWSSDK.Examples
 {
     public class _mys3 : MonoBehaviour
     {
         public string IdentityPoolId = "";
         public string CognitoIdentityRegion = RegionEndpoint.USEast1.SystemName;
         private RegionEndpoint _CognitoIdentityRegion
         {
             get { return RegionEndpoint.GetBySystemName(CognitoIdentityRegion); }
         }
         public string S3Region = RegionEndpoint.USEast1.SystemName;
         private RegionEndpoint _S3Region
         {
             get { return RegionEndpoint.GetBySystemName(S3Region); }
         }
         public string S3BucketName = null;
         public string SampleFileName = null;
         public Button PostBucketButton = null;
         public Button GetObjectButton = null;
         public Text ResultText = null;
 
         void Start()
         {
             UnityInitializer.AttachToGameObject(this.gameObject);
 
             PostBucketButton.onClick.AddListener(() => { PostObject(); });
             GetObjectButton.onClick.AddListener(() => { GetObject(); });
 
             // Fixes: "InvalidOperationException: Cannot override system-specified headers"
             AWSConfigs.HttpClient = AWSConfigs.HttpClientOption.UnityWebRequest;
         }
 
         #region private members
 
         private IAmazonS3 _s3Client;
         private AWSCredentials _credentials;
 
         private AWSCredentials Credentials
         {
             get
             {
                 if (_credentials == null)
                     _credentials = new CognitoAWSCredentials(IdentityPoolId, _CognitoIdentityRegion);
                 return _credentials;
             }
         }
 
         private IAmazonS3 Client
         {
             get
             {
                 if (_s3Client == null)
                 {
                     _s3Client = new AmazonS3Client(Credentials, _S3Region);
                 }
                 //test comment
                 return _s3Client;
             }
         }
 
         #endregion
 
         /// <summary>
         /// Get Object from S3 Bucket
         /// </summary>
         private void GetObject()
         {
             ResultText.text = string.Format("fetching {0} from bucket {1}", SampleFileName, S3BucketName);
             Client.GetObjectAsync(S3BucketName, SampleFileName, (responseObj) =>
             {
                 string data = null;
                 var response = responseObj.Response;
                 if (response.ResponseStream != null)
                 {
                     using (StreamReader reader = new StreamReader(response.ResponseStream))
                     {
                         data = reader.ReadToEnd();
                     }
 
                     ResultText.text += "\n";
                     ResultText.text += data;
                 }
             });
         }
 
         /// <summary>
         /// Post Object to S3 Bucket. 
         /// </summary>
         public void PostObject()
         {
              StartCoroutine(_sendscreenshot());
         }
         public IEnumerator _sendscreenshot()
         {
             yield return new WaitForEndOfFrame();
 
             int width = Screen.width;
             int height = Screen.height;
             Texture2D tex = new Texture2D(width, height, TextureFormat.RGB24, false);
             tex.ReadPixels(new Rect(0, 0, width, height), 0, 0);
             tex.Apply();
 
             byte[] bytes = tex.EncodeToPNG();
            // Convert.ToBase64String(bytes);
             Destroy(tex);
             File.WriteAllBytes(Application.persistentDataPath + "_ss" , bytes);
             //var stream = new FileStream(Application.persistentDataPath + "_ss", FileMode.OpenOrCreate, FileAccess.Read, FileShare.Read);
             //   var stream = new FileStream(Application.persistentDataPath + Path.DirectorySeparatorChar + bytes, FileMode.OpenOrCreate, FileAccess.Read, FileShare.Read);
                var stream = new FileStream(Application.persistentDataPath + "_ss" , FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);
             
 
             var request = new PostObjectRequest()
             {
                 Bucket = S3BucketName,
                 Key = SampleFileName,
                 InputStream = stream,
                 CannedACL = S3CannedACL.PublicReadWrite,
                 Region = _S3Region
             };
 
             ResultText.text += "\nMaking HTTP post call";
 
             Client.PostObjectAsync(request, (responseObj) =>
             {
                 if (responseObj.Exception == null)
                 {
                     ResultText.text += string.Format("\nobject {0} posted to bucket {1}", responseObj.Request.Key, responseObj.Request.Bucket);
                 }
                 else
                 {
                     ResultText.text += "\nException while posting the result object";
                     // Changed from sample so we can see actual error and not null pointer exception
                     ResultText.text += string.Format("\n receieved error {0}", responseObj.Exception.ToString());
                 }
             });
         }
 
        
         private string GetPostPolicy(string bucketName, string key, string contentType)
         {
             bucketName = bucketName.Trim();
 
             key = key.Trim();
             // uploadFileName cannot start with /
             if (!string.IsNullOrEmpty(key) && key[0] == '/')
             {
                 throw new ArgumentException("uploadFileName cannot start with / ");
             }
 
             contentType = contentType.Trim();
 
             if (string.IsNullOrEmpty(bucketName))
             {
                 throw new ArgumentException("bucketName cannot be null or empty. It's required to build post policy");
             }
             if (string.IsNullOrEmpty(key))
             {
                 throw new ArgumentException("uploadFileName cannot be null or empty. It's required to build post policy");
             }
             if (string.IsNullOrEmpty(contentType))
             {
                 throw new ArgumentException("contentType cannot be null or empty. It's required to build post policy");
             }
 
             string policyString = null;
             int position = key.LastIndexOf('/');
             if (position == -1)
             {
                 policyString = "{\"expiration\": \"" + DateTime.UtcNow.AddHours(24).ToString("yyyy-MM-ddTHH:mm:ssZ") + "\",\"conditions\": [{\"bucket\": \"" +
                     bucketName + "\"},[\"starts-with\", \"$key\", \"" + "\"],{\"acl\": \"private\"},[\"eq\", \"$Content-Type\", " + "\"" + contentType + "\"" + "]]}";
             }
             else
             {
                 policyString = "{\"expiration\": \"" + DateTime.UtcNow.AddHours(24).ToString("yyyy-MM-ddTHH:mm:ssZ") + "\",\"conditions\": [{\"bucket\": \"" +
                     bucketName + "\"},[\"starts-with\", \"$key\", \"" + key.Substring(0, position) + "/\"],{\"acl\": \"private\"},[\"eq\", \"$Content-Type\", " + "\"" + contentType + "\"" + "]]}";
             }
 
             return policyString;
         }
 
     }
 }
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