Mailing List Archive

https://bz.apache.org/bugzilla/show_bug.cgi?id=65590

Bug ID: 65590
Summary: fix_uds_filename function seems broken since apache
2.4.49
Product: Apache httpd-2
Version: 2.4.49
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: mod_proxy
Assignee: bugs@httpd.apache.org
Reporter: scresto@gmail.com
Target Milestone: ---

Since we have upgraded from httpd-2.4.48 to httpd-2.4.49 our websocket
application fail to load in web browser.
Apache seems to hang.


Our configuration is :

<Location /activex/>
Options FollowSymLinks
RewriteEngine On
RewriteCond %{HTTP:Upgrade} !=websocket [NC]
RewriteRule /activex/([^\/]+)/(.*)
unix:/dev/shm/HXL_${NOM_UTILISATEUR}/backoffice_$1.socket|http://localhost/$2
[NE,P,L]

RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteCond %{HTTP_COOKIE} hxlsession=([^;]+)
RewriteRule /activex/([^\/]+)/(.*)
unix:/dev/shm/HXL_${NOM_UTILISATEUR}/backoffice_$1.socket|ws://localhost/$2?arg=%1
[NE,P,L]
</Location>

To try to fix I have replace fix_uds_filename function in
httpd-2.4.49/modules/proxy/proxy_util.c with version presents in
httpd-2.4.48/modules/proxy/proxy_util.c and the problem has go away,
so il looks like a httpd-2.4.49 regression.

If it can help I have add some trace in this function and it's look like the
probleme is with "unix:" part who does no more match with ap_cstr_casecmpn
function.
I notice too that r->filaneme length seem to anormaly grow.

Tracing r->filename display:
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http://localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http://localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/]
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/
proxy:http://dev76.lis-dev.net:2000/activex/unix:/dev/shm/HXL_scresto/backoffice_unix:.socket|http://localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_unix:.socket|http:/localhost/dev/shm/HXL_scresto/backoffice_session.8f304bcaaf818c4d5bd799b8c75dbf20.14400.MHXL.socket|http:/localhost/


If you need more information, please let me know.

Thanks

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