https://issues.apache.org/bugzilla/show_bug.cgi?id=52207
Bug #: 52207
Summary: Upgrade apache version from 2.0.59 to 2.2.12 or above
result URL redirection error
Product: Apache httpd-2
Version: 2.2.21
Platform: PC
Status: NEW
Severity: major
Priority: P2
Component: mod_alias
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
URL: http://aaa.bbb.com under Load Balance, apache is running both 80 and 1701
ports.
We have the redirect rule: RedirectMatch ^/[\/]?$ /redirect/redirect? and we
expect to get: http://aaa.bbb.com/redirect/redirect?
However it actually gives back: http://aaa.bbb.com:1701/redirect/redirect?
1701 is the real server port and it should not show up here.
After workaround in different apache version, we found the issue can be
replicated in 2.2.12 and above versions. We also found the issue is in
modules/mapper/mod_alias.c and we located at the following codes:
if (ret[0] == '/') {
ret = ap_construct_url(r->pool, ret, r);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"incomplete redirection target of '%s' for "
"URI '%s' modified to '%s'",
orig_target, r->uri, ret);
}
If we remove this code and recompile apache, apache 2.2.12 or above versions
will work in our environment.
I don't know why others do not report the issue, but we are using Cisco ACE as
a load balancer, and we know current version 2.0.59 works well.
Here is the list we tested:
Works 2.0.59 (in use)
Works 2.0.64
Works 2.2.3
Works 2.2.11
Issue 2.2.12 (need mod_alias.c update, verified)
Issue 2.2.13 (need mod_alias.c update)
Issue 2.2.15 (need mod_alias.c update)
Issue 2.2.19 (need mod_alias.c update)
Issue 2.2.21 (need mod_alias.c update, verified)
Issue 2.3.15 (need mod_alias.c update)
Please help on this special case and we want to know:
1.) what the exactly reason we have these pieces of code? what use case?
2.) is it an apache redirection issue or ACE has issue in forwarding?
3.) if it is actually a bug, can we fix it in next release?
Thanks a lot!
--Vincent
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