BUG/MINOR: mux-fcgi: Correctly set pathinfo
Existing logic for checking whether a regex subexpression for pathinfo
is matched results in valid matches being ignored and non-matches having
a new zero length string stored in params->pathinfo. This patch reverses
the logic so params->pathinfo is set when the subexpression is matched.
Without this patch the example configuration in the documentation:
path-info ^(/.+\.php)(/.*)?$
does not result in PATH_INFO being sent to the FastCGI application, as
expected, when the second subexpression is matched (in which case both
pmatch[2].rm_so and pmatch[2].rm_eo will be non-negative integers).
This patch may be backported as far as 2.2, the first release that made
the capture of this second subexpression optional.
diff --git a/src/mux_fcgi.c b/src/mux_fcgi.c
index 597fbcb..9b48271 100644
--- a/src/mux_fcgi.c
+++ b/src/mux_fcgi.c
@@ -1308,7 +1308,7 @@
* captured
*/
params->scriptname = ist2(path.ptr + pmatch[1].rm_so, pmatch[1].rm_eo - pmatch[1].rm_so);
- if (!(params->mask & FCGI_SP_PATH_INFO) && (pmatch[2].rm_so == -1 || pmatch[2].rm_eo == -1))
+ if (!(params->mask & FCGI_SP_PATH_INFO) && !(pmatch[2].rm_so == -1 || pmatch[2].rm_eo == -1))
params->pathinfo = ist2(path.ptr + pmatch[2].rm_so, pmatch[2].rm_eo - pmatch[2].rm_so);
check_index: