Add support for chunked input encoding in nginx

Server NGINX
1

Hi.

How hard is to add support for chunked input encoding in Nginx?
I’m not talking about generic support, but only support for a very
specialized module I’m planning to write.

Reading the sources I see this:

if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
&& r->headers_in.content_length_n == -1)
{
ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
“client sent POST method without “Content-Length”
header”);
ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
return NGX_ERROR;
}

This code can be relaxed, but is it safe?

Thanks Manlio P.

2

Hi Manlio

Were you able to find a work-around for this ?
I’m facing the exact same issue where a client is posting a largish body
using chunked transfer-encoding without content-length, and so NGINX
croaks at this same point.

Any help will be appreciated.

Regards,
Mansoor

----- “Manlio P.” [email protected] wrote:
| From: “Manlio P.” [email protected]
| To: [email protected]
| Sent: Tuesday, April 1, 2008 6:44:10 PM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi
| Subject: [dev] add support for chunked input encoding in nginx
|
| Hi.
|
| How hard is to add support for chunked input encoding in Nginx?
| I’m not talking about generic support, but only support for a very
| specialized module I’m planning to write.
|
|
| Reading the sources I see this:
|
| if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
| && r->headers_in.content_length_n == -1)
| {
| ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
| “client sent POST method without "Content-Length" header”);
| ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
| return NGX_ERROR;
| }
|
|
| This code can be relaxed, but is it safe?
|
|
|
| Thanks Manlio P.
|
|

3

Mansoor P. ha scritto:

Hi Manlio

Were you able to find a work-around for this ?

No.

I’m facing the exact same issue where a client is posting a largish body
using chunked transfer-encoding without content-length, and so NGINX
croaks at this same point.

Any help will be appreciated.

You should wait until Igor will implement support for input filters.

Regards,
Mansoor

Manlio P.

4

Manlio P. wrote:

Mansoor P. ha scritto:

Hi Manlio

Were you able to find a work-around for this ?

A quick workaround:

Best regards,
Vsevolod

5

Vsevolod Dyomkin wrote:

Manlio P. wrote:

Mansoor P. ha scritto:

Hi Manlio

Were you able to find a work-around for this ?

A quick workaround:
Lisp, the Universe and Everything: correcting Transfer-encoding:chunked problem in nginx

Best regards,
Vsevolod

An updated version:
https://www.blogger.com/comment.g?blogID=6031647961506005424&postID=3915986647933648395