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POHTTP response code: 411 for URL: http://api.twitter.com/oauth/request_token
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copied!<p>Modified:</p> <p>Reference :http://dev.twitter.com/pages/auth</p> <p>I have get signature_base_string,signature_key,oauth_signature and all other parameters that are the same with twitter tutorial.</p> <ol> <li><p>signature_base_string POST&https%3A%2F%2Fapi.twitter.com%2Foauth%2Frequest_token&oauth_callback%3Dhttp%253A%252F%252Flocalhost%253A3005%252Fthe_dance%252Fprocess_callback%253Fservice_provider_id%253D11%26oauth_consumer_key%3DGDdmIQH6jhtmLUypg82g%26oauth_nonce%3DQP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1272323042%26oauth_version%3D1.0</p></li> <li><p>signature_key oauth_consumer_secret="MCD8BKwGdgPHvAuvgvz4EQpqDAtx89grbuNMRd7Eh98&"</p></li> <li>oauth_signature 8wUi7m5HFQy76nowoCThusfgB+Q=</li> </ol> <p>Now I request <a href="http://api.twitter.com/oauth/request_token" rel="nofollow">http://api.twitter.com/oauth/request_token</a> use "POST" method and get response code 411. I use a servlet doGet() when I request it from my Firefox. What do I miss in the code or any mistake? Who can help me?</p> <pre><code> protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String base_url="http://api.twitter.com/oauth/request_token"; String oauth_callback="http://api.twitter.com/1/statuses/public_timeline.json"; String oauth_consumer_key="GDdmIQH6jhtmLUypg82g"; String oauth_consumer_secret="MCD8BKwGdgPHvAuvgvz4EQpqDAtx89grbuNMRd7Eh98&"; String oauth_signature_method="HMAC-SHA1"; int oauth_timestamp=1272323042; String oauth_version="1.0"; String oauth_nonce="QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk"; String oauth_signature=""; String signature_base_string = null; try { signature_base_string = "POST" + "&" + URLEncoder.encode( "https://api.twitter.com/oauth/request_token", "UTF-8") + "&" + URLEncoder .encode("oauth_callback=http%3A%2F%2Flocalhost%3A3005%2Fthe_dance%2Fprocess_callback%3Fservice_provider_id%3D11&oauth_consumer_key=GDdmIQH6jhtmLUypg82g&oauth_nonce=QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1272323042&oauth_version=1.0", "UTF-8"); System.out.println(signature_base_string); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { Mac mac = Mac.getInstance("HmacSHA1"); SecretKeySpec secret = new SecretKeySpec( oauth_consumer_secret.getBytes(), "HmacSHA1"); mac.init(secret); byte[] digest = mac.doFinal(signature_base_string.getBytes()); BASE64Encoder encoder = new BASE64Encoder(); oauth_signature=encoder.encode(digest); System.out.println(oauth_signature); } catch (Exception e) { System.out.println(e.getMessage()); } URL url=new URL(base_url); HttpURLConnection httpURLCon=(HttpURLConnection)url.openConnection(MyProxy.getProxy()); httpURLCon.setRequestMethod("POST"); httpURLCon.setRequestProperty("Authorization", "OAuth "+"oauth_nonce='QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk', oauth_callback='http%3A%2F%2Flocalhost%3A3005%2Fthe_dance%2Fprocess_callback%3Fservice_provider_id%3D11', oauth_signature_method='HMAC-SHA1', oauth_timestamp='1272323042', oauth_consumer_key='GDdmIQH6jhtmLUypg82g', oauth_signature='8wUi7m5HFQy76nowoCThusfgB%2BQ%3D', oauth_version='1.0'"); httpURLCon.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0"); /*Map<String,List<String>> headers= httpURLCon.getHeaderFields(); Iterator<String> i=headers.keySet().iterator(); while(i.hasNext()){ String key=i.next(); System.out.println(key); System.out.println(headers.get(key).toString()); System.out.println("===================="); } */ httpURLCon.connect(); InputStream is=null; if (httpURLCon.getResponseCode() != 200) { is = httpURLCon.getErrorStream(); } else { is = httpURLCon.getInputStream(); } byte[] b=new byte[1024*4]; int read; while((read=is.read(b))!=-1){ response.getOutputStream().write(b,0,read); } } </code></pre> <p>Message: <strong>ERROR The requested URL could not be retrieved</strong></p> <p>While trying to process the request:</p> <p>POST /oauth/request_token HTTP/1.1 Host: api.twitter.com Authorization: OAuth oauth_nonce='QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk', oauth_callback='http%3A%2F%2Flocalhost%3A3005%2Fthe_dance%2Fprocess_callback%3Fservice_provider_id%3D11', oauth_signature_method='HMAC-SHA1', oauth_timestamp='1272323042', oauth_consumer_key='GDdmIQH6jhtmLUypg82g', oauth_signature='8wUi7m5HFQy76nowoCThusfgB%2BQ%3D', oauth_version='1.0' User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0 Cache-Control: no-cache Pragma: no-cache Accept: text/html, image/gif, image/jpeg, *; q=.2, <em>/</em>; q=.2 X-D-Forwarder: yes Max-Forwards: 10</p> <p>The following error was encountered:</p> <pre><code>Invalid Request </code></pre> <p>Some aspect of the HTTP Request is invalid. Possible problems:</p> <pre><code>Missing or unknown request method Missing URL Missing HTTP Identifier (HTTP/1.0) Request is too large Content-Length missing for POST or PUT requests Illegal character in hostname; underscores are not allowed </code></pre> <p>Your cache administrator is webmaster. Generated Fri, 08 Jul 2011 06:41:34 GMT by google.com (squid/2.7.STABLE6) </p> <p>==========================================================</p> <p>Reference :http://dev.twitter.com/pages/auth</p> <p>I have get signature_base_string,signature_key,oauth_signature and all other parameters that are the same with twitter tutorial.</p> <ol> <li><p>signature_base_string POST&https%3A%2F%2Fapi.twitter.com%2Foauth%2Frequest_token&oauth_callback%3Dhttp%253A%252F%252Flocalhost%253A3005%252Fthe_dance%252Fprocess_callback%253Fservice_provider_id%253D11%26oauth_consumer_key%3DGDdmIQH6jhtmLUypg82g%26oauth_nonce%3DQP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1272323042%26oauth_version%3D1.0</p></li> <li><p>signature_key oauth_consumer_secret="MCD8BKwGdgPHvAuvgvz4EQpqDAtx89grbuNMRd7Eh98&"</p></li> <li>oauth_signature 8wUi7m5HFQy76nowoCThusfgB+Q=</li> </ol> <p>Now I request <a href="http://api.twitter.com/oauth/request_token" rel="nofollow">http://api.twitter.com/oauth/request_token</a> use "POST" method and get response code 411. I use a servlet doGet() when I request it from my Firefox. What do I miss in the code or any mistake? Who can help me?</p> <pre><code> protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String base_url="http://api.twitter.com/oauth/request_token"; String oauth_callback="http://api.twitter.com/1/statuses/public_timeline.json"; String oauth_consumer_key="GDdmIQH6jhtmLUypg82g"; String oauth_consumer_secret="MCD8BKwGdgPHvAuvgvz4EQpqDAtx89grbuNMRd7Eh98&"; String oauth_signature_method="HMAC-SHA1"; int oauth_timestamp=1272323042; String oauth_version="1.0"; String oauth_nonce="QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk"; String oauth_signature=""; String signature_base_string = null; try { signature_base_string = "POST" + "&" + URLEncoder.encode( "https://api.twitter.com/oauth/request_token", "UTF-8") + "&" + URLEncoder .encode("oauth_callback=http%3A%2F%2Flocalhost%3A3005%2Fthe_dance%2Fprocess_callback%3Fservice_provider_id%3D11&oauth_consumer_key=GDdmIQH6jhtmLUypg82g&oauth_nonce=QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1272323042&oauth_version=1.0", "UTF-8"); System.out.println(signature_base_string); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { Mac mac = Mac.getInstance("HmacSHA1"); SecretKeySpec secret = new SecretKeySpec( oauth_consumer_secret.getBytes(), "HmacSHA1"); mac.init(secret); byte[] digest = mac.doFinal(signature_base_string.getBytes()); BASE64Encoder encoder = new BASE64Encoder(); oauth_signature=encoder.encode(digest); System.out.println(oauth_signature); } catch (Exception e) { System.out.println(e.getMessage()); } URL url=new URL(base_url); HttpURLConnection httpURLCon=(HttpURLConnection)url.openConnection(MyProxy.getProxy()); httpURLCon.setRequestMethod("POST"); httpURLCon.setRequestProperty("Authorization", "OAuth "+"oauth_nonce='QP70eNmVz8jvdPevU3oJD2AfF7R7odC2XJcn4XlZJqk', oauth_callback='http%3A%2F%2Flocalhost%3A3005%2Fthe_dance%2Fprocess_callback%3Fservice_provider_id%3D11', oauth_signature_method='HMAC-SHA1', oauth_timestamp='1272323042', oauth_consumer_key='GDdmIQH6jhtmLUypg82g', oauth_signature='8wUi7m5HFQy76nowoCThusfgB%2BQ%3D', oauth_version='1.0'"); httpURLCon.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0"); /*Map<String,List<String>> headers= httpURLCon.getHeaderFields(); Iterator<String> i=headers.keySet().iterator(); while(i.hasNext()){ String key=i.next(); System.out.println(key); System.out.println(headers.get(key).toString()); System.out.println("===================="); } */ httpURLCon.connect(); InputStream is=httpURLCon.getInputStream(); byte[] b=new byte[1024*4]; int read; while((read=is.read(b))!=-1){ response.getOutputStream().write(b,0,read); } } </code></pre> <p>Exception:</p> <pre><code>java.io.IOException: Server returned HTTP response code: 411 for URL: http://api.twitter.com/oauth/request_token at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1313) at com.twitterbridge.oauth.Oauth.doGet(Oauth.java:114) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619) </code></pre>

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