On Fri, Aug 2, 2024 at 3:10 PM Yann Ylavic <ylavic....@gmail.com> wrote:
>
> On Fri, Aug 2, 2024 at 1:06 PM Eric Covener <cove...@gmail.com> wrote:
> >
> > > Yeah, if not under DocumentRoot I don't see how ProxyPass could work,
> > > but SetHandler should since it's following the whole request
> > > processing to resolve the filesystem r->filename?
> >
> > In the examples I am seeing spot-checking google results, people who
> > use ProxyPass + FPM hard-code the document root (or wherever the stuff
> > is) in the 2nd parameter. This includes our own manual and the
> > unofficial confluence wiki.
>
> Ah ok, I think we can do something like this:
> if (rconf->need_dirwalk) {
> const char *docroot = ap_document_root(r);
> if (strncmp(docroot, r->filename, strlen(docroot)) != 0) {
> r->proxyreq = PROXYREQ_NONE;
> ap_core_translate(r);
> }
> ap_directory_walk(r);
> }
> ?
Full patch (v2).
Index: modules/proxy/mod_proxy_fcgi.c
===================================================================
--- modules/proxy/mod_proxy_fcgi.c (revision 1919628)
+++ modules/proxy/mod_proxy_fcgi.c (working copy)
@@ -29,6 +29,7 @@ typedef struct {
typedef struct {
int need_dirwalk;
+ char *filename;
} fcgi_req_config_t;
/* We will assume FPM, but still differentiate */
@@ -141,8 +142,10 @@ static int proxy_fcgi_canon(request_rec *r, char *
rconf = apr_pcalloc(r->pool, sizeof(fcgi_req_config_t));
ap_set_module_config(r->request_config, &proxy_fcgi_module, rconf);
}
+ rconf->filename = apr_pstrcat(r->pool, "/", url, NULL);
- if (NULL != (pathinfo_type = apr_table_get(r->subprocess_env, "proxy-fcgi-pathinfo"))) {
+ pathinfo_type = apr_table_get(r->subprocess_env, "proxy-fcgi-pathinfo");
+ if (pathinfo_type) {
/* It has to be on disk for this to work */
if (!strcasecmp(pathinfo_type, "full")) {
rconf->need_dirwalk = 1;
@@ -181,6 +184,9 @@ static int proxy_fcgi_canon(request_rec *r, char *
"set r->path_info to %s", r->path_info);
}
}
+ else if (FCGI_MAY_BE_FPM(dconf) && !from_handler) {
+ rconf->need_dirwalk = 1;
+ }
return OK;
}
@@ -359,18 +365,26 @@ static apr_status_t send_environment(proxy_conn_re
int next_elem, starting_elem;
fcgi_req_config_t *rconf = ap_get_module_config(r->request_config, &proxy_fcgi_module);
fcgi_dirconf_t *dconf = ap_get_module_config(r->per_dir_config, &proxy_fcgi_module);
+ char *saved_filename = r->filename;
- if (rconf && rconf->need_dirwalk) {
- char *saved_filename = r->filename;
- r->filename = r->uri;
- ap_directory_walk(r);
- r->filename = saved_filename;
+ if (rconf) {
+ r->filename = rconf->filename;
+
+ /* To fix/set r->filename/path_info, do now what ProxyPass skipped */
+ if (rconf->need_dirwalk) {
+ const char *docroot = ap_document_root(r);
+ if (strncmp(r->filename, docroot, strlen(docroot)) != 0) {
+ r->proxyreq = PROXYREQ_NONE;
+ ap_core_translate(r);
+ }
+ ap_directory_walk(r);
+ }
}
-
- /* Strip proxy: prefixes */
- if (r->filename) {
+ else if (r->filename) {
char *newfname = NULL;
+ /* Strip proxy: prefixes */
+
if (!strncmp(r->filename, "proxy:balancer://", 17)) {
newfname = apr_pstrdup(r->pool, r->filename+17);
}
@@ -401,6 +415,9 @@ static apr_status_t send_environment(proxy_conn_re
ap_add_common_vars(r);
ap_add_cgi_vars(r);
+ r->filename = saved_filename;
+ r->proxyreq = PROXYREQ_REVERSE;
+
/* XXX are there any FastCGI specific env vars we need to send? */
/* Give admins final option to fine-tune env vars */
