Re: PUT & Expect:100-continue
Uday Subbarayan wrote: Hi Oleg, I disagree with you. This 100 status from HTTP Servers are valid response, to indicate to the client to continue sending the body. You are very welcome to disagree. RFC 2616, section 10.1 " 10.1 Informational 1xx This class of status code indicates a _provisional_ response, ... A client MUST be prepared to accept one or _more_ 1xx status responses prior to a _regular_ response ... " The HTTP 1.1 spec says, "This interim response is used to inform the client that the initial part of the request has been received and has not yet been rejected by the server. The client SHOULD continue by sending the remainder of the request or, if the request has already been completed, ignore this response. The server MUST send a final response after the request has been completed." http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.1.1 A good example is Amzon's S3: http://docs.amazonwebservices.com/AmazonS3/2006-03-01/ Here client will send the header first and S3 authenticates request based on header. Then if auth succeeds it will respond with 100 to indicate to the client to continue with the body OR 417 OT to send the body. So, Is it safe to assume that Apache's HTTPClient is NOT supporting this "Expect:100-Continue" header in HTTP1.1? You can assume whatever you please. HttpClient is fully RFC 2616 compliant with regards to the expect:continue handshaking. Oleg Thanks, -Uday. - - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PUT & Expect:100-continue
Hi Oleg,
I disagree with you. This 100 status from HTTP Servers are valid response,
to indicate to the client to continue sending the body.
The HTTP 1.1 spec says,
"This interim response is
used to inform the client that the initial part of the request has
been received and has not yet been rejected by the server. The client
SHOULD continue by sending the remainder of the request or, if the
request has already been completed, ignore this response. The server
MUST send a final response after the request has been completed."
http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.1.1
A good example is Amzon's S3:
http://docs.amazonwebservices.com/AmazonS3/2006-03-01/
Here client will send the header first and S3 authenticates request based on
header. Then if auth succeeds it will respond with 100 to indicate to the
client to continue with the body OR 417 OT to send the body.
So,
Is it safe to assume that Apache's HTTPClient is NOT supporting this
"Expect:100-Continue" header in HTTP1.1?
Thanks,
-Uday.
-
I do not blog but e-write:
http://uds-web.blogspot.com
--- On Thu, 7/17/08, Oleg Kalnichevski <[EMAIL PROTECTED]> wrote:
From: Oleg Kalnichevski <[EMAIL PROTECTED]>
Subject: Re: PUT & Expect:100-continue
To: "HttpClient User Discussion"
Date: Thursday, July 17, 2008, 10:03 PM
On Wed, 2008-07-16 at 17:34 -0700, Uday Subbarayan wrote:
> Hi All,
> I am having trouble in using HTTPClient 3.1 for PUT method w/
"Expect:100-Continue" header.
>
> My requirement is that,
> [1] client sends a PUT request to the server with header only using this
Expect header and waits for the 100 response back from the server.
> [2] Then client sends the body, after it received the 100 status back from
the server.
>
> The problem is that if my server sends back 100-continue, HttpClient
complaints about,
> "INFO: Discarding unexpected response: HTTP/1.1 100 Continue".
>
> Here is sample code:
> String testURL="http://localhost:8080/testci/index";;
> HttpClient client = new HttpClient();
>
> PutMethod put = new PutMethod(url);
> put.setUseExpectHeader(true);
> int statusCode = client.executeMethod(put);
>
>
> if(statusCode==100){
> System.out.println("server response is 100!");
> put.setRequestBody(new
FileInputStream("test.txt"));
> }
>
>
> It looks like i am making some mistake Can some one shed some light
here?
>
Uday,
HTTP agents are not supposed to return 1xx status codes to the caller.
These are special purpose codes that are meant to be used internally
Just let HttpClient handle the expect-continue handshaking.
http://hc.apache.org/httpclient-3.x/performance.html#Expect-continue_handshake
You can see exactly what gets transferred across the wire by turning on
the wire logging on the client side.
http://hc.apache.org/httpclient-3.x/logging.html
Hope this helps
Oleg
> Thanks,
> -Uday.
>
> -
>
> I do not blog but e-write:
>
> http://uds-web.blogspot.com
>
>
>
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: PUT & Expect:100-continue
On Wed, 2008-07-16 at 17:34 -0700, Uday Subbarayan wrote:
> Hi All,
> I am having trouble in using HTTPClient 3.1 for PUT method w/
> "Expect:100-Continue" header.
>
> My requirement is that,
> [1] client sends a PUT request to the server with header only using this
> Expect header and waits for the 100 response back from the server.
> [2] Then client sends the body, after it received the 100 status back from
> the server.
>
> The problem is that if my server sends back 100-continue, HttpClient
> complaints about,
> "INFO: Discarding unexpected response: HTTP/1.1 100 Continue".
>
> Here is sample code:
> String testURL="http://localhost:8080/testci/index";;
> HttpClient client = new HttpClient();
>
> PutMethod put = new PutMethod(url);
> put.setUseExpectHeader(true);
> int statusCode = client.executeMethod(put);
>
>
> if(statusCode==100){
> System.out.println("server response is 100!");
> put.setRequestBody(new FileInputStream("test.txt"));
> }
>
>
> It looks like i am making some mistake Can some one shed some light here?
>
Uday,
HTTP agents are not supposed to return 1xx status codes to the caller.
These are special purpose codes that are meant to be used internally
Just let HttpClient handle the expect-continue handshaking.
http://hc.apache.org/httpclient-3.x/performance.html#Expect-continue_handshake
You can see exactly what gets transferred across the wire by turning on
the wire logging on the client side.
http://hc.apache.org/httpclient-3.x/logging.html
Hope this helps
Oleg
> Thanks,
> -Uday.
>
> -
>
> I do not blog but e-write:
>
> http://uds-web.blogspot.com
>
>
>
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
PUT & Expect:100-continue
Hi All,
I am having trouble in using HTTPClient 3.1 for PUT method w/
"Expect:100-Continue" header.
My requirement is that,
[1] client sends a PUT request to the server with header only using this Expect
header and waits for the 100 response back from the server.
[2] Then client sends the body, after it received the 100 status back from the
server.
The problem is that if my server sends back 100-continue, HttpClient complaints
about,
"INFO: Discarding unexpected response: HTTP/1.1 100 Continue".
Here is sample code:
String testURL="http://localhost:8080/testci/index";;
HttpClient client = new HttpClient();
PutMethod put = new PutMethod(url);
put.setUseExpectHeader(true);
int statusCode = client.executeMethod(put);
if(statusCode==100){
System.out.println("server response is 100!");
put.setRequestBody(new FileInputStream("test.txt"));
}
It looks like i am making some mistake Can some one shed some light here?
Thanks,
-Uday.
-
I do not blog but e-write:
http://uds-web.blogspot.com
