From: https://www.google.com/accounts/o8/id?id=AItOawkARRfU19FmAvBQJ0zR_vlTi_KEiL9meFE <Riccardo@web>
Date: Tue, 16 Aug 2011 13:13:28 +0000 (-0400)
Subject: more details; point to apache sources where line is apparently truncated
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=2ca518d39062087d0ff807151c066696e9429fcd;p=ikiwiki.git

more details; point to apache sources where line is apparently truncated
---

diff --git a/doc/forum/error_302___40__Found__41___when_editing_page.mdwn b/doc/forum/error_302___40__Found__41___when_editing_page.mdwn
index 28093f92b..fb1a0a27b 100644
--- a/doc/forum/error_302___40__Found__41___when_editing_page.mdwn
+++ b/doc/forum/error_302___40__Found__41___when_editing_page.mdwn
@@ -27,3 +27,31 @@ So I added this to Apache's config (std Debian 6.0):
 But I'm still getting the same error.
 
 Any suggestions?
+
+
+**Update 2011-08-16:** 
+[This bug report](https://bugzilla.mozilla.org/show_bug.cgi?id=513989) 
+shows the exact same symptoms; the solution they adopted is to not
+perform the redirect when the URL length exceeds the default Apache
+value of 8190.
+
+Regarding Apache limits: apparently, Apache (as of version 2.2.17)
+only applies the `LimitRequestLine` and `LimitRequestFiledsize` in
+client HTTP transactions; when dealing with the HTTP responses
+generated by CGI scripts, the code from `server/util_script.c`
+applies: (function `ap_scan_script_header_err_core`, lines 403--433)
+
+        char x[MAX_STRING_LEN];
+        char *w, *l;
+        [...]
+        if (buffer) {
+            *buffer = '\0';
+        }
+        w = buffer ? buffer : x;
+        [...]
+        while (1) {
+            int rv = (*getsfunc) (w, MAX_STRING_LEN - 1, getsfunc_data);
+
+where `MAX_STRING_LEN` is defined in `httpd.h` to be equal to
+`HUGE_STRING_LEN`, that is, 8192.
+