Dynamic subversion repos via subdomains (in Apache)

In the interest of Open Source (yay!), I'll post my solution. I found no built-in solution to my problem, so I spent a few hours on the mod_dav_svn.so sources and came up with this patch:

Index: subversion/mod_dav_svn/mod_dav_svn.c===================================================================--- subversion/mod_dav_svn/mod_dav_svn.c        (revision 1049733)+++ subversion/mod_dav_svn/mod_dav_svn.c        (working copy)@@ -426,9 +426,14 @@dav_svn__get_fs_parent_path(request_rec *r) {   dir_conf_t *conf;+  char *tokens, *subdomain, *last_str;   conf = ap_get_module_config(r->per_dir_config, &dav_svn_module);-  return conf->fs_parent_path;++  tokens = apr_pstrdup(r->pool, r->hostname);   // copy hostname+  subdomain = apr_strtok(tokens, ".", &last_str);++  return (const char *) apr_pstrcat(r->pool, conf->fs_parent_path, "/", subdomain, NULL); }

Essentially, this grabs the current hostname (from the pending request 'request_rec'), slices away the first token (subdomain), and concatenates that with the proper SVNParentPath (conf->fs_parent_path) and voila! Everything works as it should. Here's my server config (notice how simple it is now):

<VirtualHost *:80 *:443>    ServerAdmin admin@domain.com    DocumentRoot "/server/www"    ServerName domain.com    ServerAlias *.domain.com www.domain.com domain.com    ErrorLog logs/domain-error_log    CustomLog logs/domain-access_log common    <Location /svn>        DAV svn        SVNParentPath /server/svn        SVNListParentPath on    </Location></VirtualHost>

Notes:

I hope that I used the apr_* functions correctly, if there are any caveats, I'd like some feedback :)

Tested on Centos with latest mod_dav_svn tree.