subject:"Re\: Http url connection \: server returned http response code 400"

Re: Http url connection : server returned http response code 400

2013-11-16 Thread vicky b

THanks you, can you please let me know what optimization I have to make.

  con.setRequestProperty(Referer, request.getHeader(Referer));

was the issue , since it was being set to null


On Mon, Nov 11, 2013 at 7:38 AM, Christopher Schultz 
ch...@christopherschultz.net wrote:

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA256

 Vicky,

 On 11/11/13, 10:02 AM, vicky b wrote:
  I am  getting server returned http response code 400  when  i run
  below code from my tomcat however it works fine when i run it in
  WAS whch has proxy server   settings.
 
  URL url = new URL(reqUrl); HttpURLConnection con =
  (HttpURLConnection)url.openConnection(); con.setDoOutput(true);
  con.setRequestMethod(request.getMethod());
  if(request.getContentType() != null) {
  con.setRequestProperty(Content-Type, request.getContentType());
  } con.setRequestProperty(Referer, request.getHeader(Referer));
  int clength = request.getContentLength(); if(clength  0) {
  con.setDoInput(true); InputStream istream =
  request.getInputStream(); OutputStream os = con.getOutputStream();
  final int length = 5000; byte[] bytes = new byte[length]; int
  bytesRead = 0; while ((bytesRead = istream.read(bytes, 0, length))
   0) { os.write(bytes, 0, bytesRead); } } else {
  con.setRequestMethod(GET); } out.clear(); out =
  pageContext.pushBody(); OutputStream ostream =
  response.getOutputStream(); System.out.println( finished
  getOUTputsteram); response.setContentType(con.getContentType());
  InputStream in = con.getInputStream(); final int length = 5000;
  byte[] bytes = new byte[length]; int bytesRead = 0; while
  ((bytesRead = in.read(bytes, 0, length))  0) {
  ostream.write(bytes, 0, bytesRead); }

 So you have a quick-and-dirty proxy servlet, right?

 There are a number of optimizations, etc that you should probably
 make, but none of the above code uses any Tomcat code (other than
 fetching information from the incoming request, which presumably works
 correctly).

 It looks like you are getting a 400 from the server your code is
 contacting. Have you looked at the request that is actually being sent?

 Under what conditions do you get a 400 response? I see you are
 unconditionally setting con.setDoOutput(true) even if you don't intend
 to send any data. You conditionally call setDoInput which doens't make
 a great deal of sense. I think you have these two calls reversed in
 your head.

 - -chris
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-- 



*Thanks  Regards Vickyb*

Re: Http url connection : server returned http response code 400

2013-11-11 Thread Christopher Schultz

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Vicky,

On 11/11/13, 10:02 AM, vicky b wrote:
 I am  getting server returned http response code 400  when  i run
 below code from my tomcat however it works fine when i run it in
 WAS whch has proxy server   settings.
 
 URL url = new URL(reqUrl); HttpURLConnection con =
 (HttpURLConnection)url.openConnection(); con.setDoOutput(true); 
 con.setRequestMethod(request.getMethod()); 
 if(request.getContentType() != null) { 
 con.setRequestProperty(Content-Type, request.getContentType()); 
 } con.setRequestProperty(Referer, request.getHeader(Referer)); 
 int clength = request.getContentLength(); if(clength  0) { 
 con.setDoInput(true); InputStream istream =
 request.getInputStream(); OutputStream os = con.getOutputStream(); 
 final int length = 5000; byte[] bytes = new byte[length]; int
 bytesRead = 0; while ((bytesRead = istream.read(bytes, 0, length))
  0) { os.write(bytes, 0, bytesRead); } } else { 
 con.setRequestMethod(GET); } out.clear(); out =
 pageContext.pushBody(); OutputStream ostream =
 response.getOutputStream(); System.out.println( finished
 getOUTputsteram); response.setContentType(con.getContentType()); 
 InputStream in = con.getInputStream(); final int length = 5000; 
 byte[] bytes = new byte[length]; int bytesRead = 0; while
 ((bytesRead = in.read(bytes, 0, length))  0) { 
 ostream.write(bytes, 0, bytesRead); }

So you have a quick-and-dirty proxy servlet, right?

There are a number of optimizations, etc that you should probably
make, but none of the above code uses any Tomcat code (other than
fetching information from the incoming request, which presumably works
correctly).

It looks like you are getting a 400 from the server your code is
contacting. Have you looked at the request that is actually being sent?

Under what conditions do you get a 400 response? I see you are
unconditionally setting con.setDoOutput(true) even if you don't intend
to send any data. You conditionally call setDoInput which doens't make
a great deal of sense. I think you have these two calls reversed in
your head.

- -chris
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Comment: GPGTools - http://gpgtools.org
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

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Re: Http url connection : server returned http response code 400

Re: Http url connection : server returned http response code 400

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