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PO411 Content-Length Required
 

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    <p>I am trying to do a POST using the Android Apache HttpClient but it is returning error 411 Content-Length Required. Here is the code.</p> <pre><code> HttpClient httpClient = new DefaultHttpClient(); HttpPost request = new HttpPost("https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/tokenservice"); request.addHeader("Authorization","Basic "+ Base64.encodeToString((appId+":"+ appSecret).getBytes(),Base64.DEFAULT)); List&lt;NameValuePair&gt; postParameters = new ArrayList&lt;NameValuePair&gt;(); postParameters.add(new BasicNameValuePair("grant_type", "authorization_code")); postParameters.add(new BasicNameValuePair("code", code)); postParameters.add(new BasicNameValuePair("scope", "https://uri.paypal.com/services/paypalhere")); UrlEncodedFormEntity entity; entity = new UrlEncodedFormEntity(postParameters); request.setEntity(entity); HttpResponse response = httpClient.execute(request); Log.d("HTTPStatus",response.getStatusLine().toString()); InputStream bufferedReader = response.getEntity().getContent(); StringBuffer stringBuffer = new StringBuffer(""); byte[] line = new byte[1024]; while (bufferedReader.read(line) &gt; 0) { stringBuffer.append(new String(line)); } bufferedReader.close(); Log.d("str",stringBuffer.toString()); </code></pre> <p>I have tried adding the line:-</p> <pre><code> request.addHeader("Content-Length",Long.toString(entity.getContentLength())); </code></pre> <p>But then I get a 'org.apache.http.ProtocolException: Content-Length header already present' error instead. This must mean that the HttpClient is already sending the Content-Length. Unfortunatley I have no access to the server side. Any ideas why it would be returning these errors?</p>
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    1. COHave you tried to post this using HTTP instead of HTTPS and to a PC running Wireshark to see exactly what's being generated? Also what version of the Android HTTP client are you using?
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    2. COI sent it to a HTTP address and ran wireshark. It did not come up as a post in Wireshark but as a [TCP segment of resassembled PDU], don't know what that means. Here is the capture packet.
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    3. COTRSNIFF data uB ô ÿk= æ  !·,+$w72l E ØGQ@ @?ãÀ¨ ­ÂCyÈ P—rX³Á7 -Ph„ POST ************ HTTP/1.1 Content-Type: application/xml;charset=UTF-8 Authorization: Basic *************** Content-Length: 103 Host: ************* Connection: Keep-Alive User-Agent: Apache-HttpClient/UNAVAILABLE (java 1.4) {"grant_type":"authorization_code","scope":"https:\/\/uri.paypal.com\/services\/paypalhere","code":"***********"}
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