Android 401 Unauthorized HttpURLConnection with Basic Auth

Question

I am trying to send a POST request with some String parameters and a jpeg image file. The whole code is in an IntentService.

I am using an Authorization header for the basic auth (the credentials work when using them with another web service).

I can't really get what is wrong, maybe a faulty request property. Keep in mind that I am sending Strings, but also an image.

 int bytesRead, bytesAvailable, bufferSize; byte[] buffer; int maxBufferSize = 1 * 1024 * 1024; try { FileInputStream fileInputStream = new FileInputStream(new File(filePath)); URL url = new URL(urlServer); String credentials = "[email protected]"+":"+"testtest"; final String basicAuth = "Basic " + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP); connection = (HttpURLConnection) url.openConnection(); connection.setRequestProperty("Authorization", basicAuth); connection.setRequestProperty("Content-Type", "multipart/form-data"); connection.setRequestProperty("Accept", "application/json"); connection.setRequestProperty("Connection", "Keep-Alive"); connection.setInstanceFollowRedirects(false); connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(false); connection.setRequestMethod("POST"); outputStream = new DataOutputStream(connection.getOutputStream()); outputStream.writeBytes("imei="+ getImei() + "&id=38" + "&type = b" + "&step=1" + "&image=" ); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; int sentBytes = 0; bytesRead = fileInputStream.read(buffer, 0, bufferSize); while (bytesRead > 0) { mBuilder.setProgress(100,(int) (sentBytes * 100 / bytesAvailable),false); mNotifyManager.notify(1, mBuilder.build()); outputStream.write(buffer, 0, bufferSize); bytesAvailable = fileInputStream.available(); sentBytes += bufferSize; bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); } mBuilder.setContentText("Upload complete"); mBuilder.setProgress(0, 0, false); mNotifyManager.notify(1, mBuilder.build()); fileInputStream.close(); outputStream.flush(); outputStream.close(); if(connection.getResponseCode() == HttpURLConnection.HTTP_MOVED_TEMP){ url = new URL(connection.getHeaderField("Location")); connection = (HttpURLConnection)url.openConnection(); connection.setRequestProperty("Authorization", basicAuth); } InputStreamReader isr = null; BufferedReader reader = null; StringBuilder sb = new StringBuilder(); String line = ""; isr = new InputStreamReader( connection.getInputStream()); reader = new BufferedReader(isr); line = reader.readLine(); while (line != null) { sb.append(line); try { line = reader.readLine(); }catch (Exception e){ line = null; } } String a; a = sb.toString(); } catch (Exception ex) { ex.printStackTrace(); }

401 error need not definitely be because you have sent the username or password wrong. It could also be because of wrong encoding. — ngrashia
– ngrashia, Commented Aug 11, 2015 at 5:34

ngrashia · Accepted Answer · 2015-08-11 06:40:24Z

Try using DefaultHttpClient as follows. Instead of Base64.encodeToString, try UsernamePasswordCredentials as below. Even I used POST method with basic auth and it worked.

private HttpResponse getWebServiceResponse(String URL, ArrayList <NameValuePair> params) { HttpResponse httpResponse = null; try { HttpParams httpParameters = new BasicHttpParams(); // Set httpParameters like timeout etc. here. // defaultHttpClient DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters); httpClient.getCredentialsProvider().setCredentials( AuthScope.ANY, new UsernamePasswordCredentials("USERNAME", "PASSWORD")); HttpPost httpPost = new HttpPost(URL); try { httpPost.setEntity(new UrlEncodedFormEntity(params)); } catch (UnsupportedEncodingException e) { } httpResponse = httpClient.execute(httpPost); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return httpResponse; }

Please check the accepted answer in stackoverflow.com/q/9212082/3492139 to send an image as name value pair.

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Android 401 Unauthorized HttpURLConnection with Basic Auth

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