Re: 18 months later: Tux and HTTP request forwarding

[Ingo Molnar <mingo@elte.hu>]

On Tue, 28 Oct 2003, Charles Bennington wrote:

> I have been looking for a way to have tux always handle requests for
> URLs with a question mark in them, but also discard the text including
> and following the question mark.  For example:
> 
> http://site/path/file?args ==> http://site/path/file
> 
> This is in an attempt to serve files that are static by design by have a
> random argument appended to the end to defeat browser caching. [...]

could you apply the attached patch and do:

	echo 1 > /proc/sys/net/tux/ignore_query

does this do the trick?

	Ingo

--- linux/include/linux/sysctl.h.orig	
+++ linux/include/linux/sysctl.h	
@@ -562,6 +562,7 @@ enum {
 	NET_TUX_MAX_HEADER_LEN		= 42,
 	NET_TUX_404_PAGE		= 43,
 	NET_TUX_MAX_KEEPALIVES		= 44,
+	NET_TUX_IGNORE_QUERY		= 45,
 };
 
 /* /proc/sys/net/khttpd/ */
--- linux/include/net/tux.h.orig	
+++ linux/include/net/tux.h	
@@ -715,6 +715,7 @@ extern unsigned int tux_cgi_cpu_mask;
 extern tux_proto_t tux_proto_http;
 extern tux_proto_t tux_proto_ftp;
 extern unsigned int tux_all_userspace;
+extern unsigned int tux_ignore_query;
 extern unsigned int tux_redirect_logging;
 extern unsigned int tux_referer_logging;
 extern unsigned int tux_log_incomplete;
--- linux/net/tux/proc.c.orig	
+++ linux/net/tux/proc.c	
@@ -60,6 +60,7 @@ unsigned int tux_cgi_inherit_cpu = 0;
 unsigned int tux_cgi_cpu_mask = ~0;
 unsigned int tux_zerocopy_header = 1;
 unsigned int tux_max_free_requests = 1000;
+unsigned int tux_ignore_query = 0;
 unsigned int tux_all_userspace = 0;
 unsigned int tux_redirect_logging = 1;
 unsigned int tux_max_header_len = 3000;
@@ -693,6 +694,18 @@ static ctl_table tux_table[] = {
 		NULL,
 		NULL
 	},
+	{	NET_TUX_IGNORE_QUERY,
+		"ignore_query",
+		&tux_ignore_query,
+		sizeof(int),
+		0644,
+		NULL,
+		proc_dointvec,
+		&sysctl_intvec,
+		NULL,
+		NULL,
+		NULL
+	},
 	{	NET_TUX_REFERER_LOGGING,
 		"referer_logging",
 		&tux_referer_logging,
--- linux/net/tux/proto_http.c.orig	
+++ linux/net/tux/proto_http.c	
@@ -319,8 +319,13 @@ continue_parsing:
 			if (c == '#')
 				GOTO_REDIR;
 		}
-		query_len = curr-query-1;
-		req->query_len = query_len;
+
+		if (unlikely(tux_ignore_query))
+			req->query_str = NULL;
+		else {
+			query_len = curr-query-1;
+			req->query_len = query_len;
+		}
 	}
 	if (req->query_len)
 		Dprintk("got query string %s (%d)\n", req->query_str, req->query_len);