Fixed bug #65641 PHP-FPM incorrectly defines the SCRIPT_NAME variable when using Apache

ProxyPass is unable to provide correct PATH_INFO
as it is not aware of file path (while SetHandler is).

As we can extract PATH_INFO from PATH_TRANSLATED,
we also need to check if present in SCRIPT_NAME
and remove it.

After applying this patch.
With mod_php
_SERVER["REQUEST_URI"]     /info.php/foo/bar?q=1
_SERVER["SCRIPT_NAME"]     /info.php
_SERVER["PATH_INFO"]       /foor/bar
_SERVER["PHP_SELF"]        /info.php/foo/bar
_SERVER["QUERY_STRING"]    q=1

With mod_proxy_fcgi + SetHandler
_SERVER["REQUEST_URI"]     /info.php/foo/bar?q=1
_SERVER["SCRIPT_NAME"]     /info.php
_SERVER["PATH_INFO"]       /foo/bar
_SERVER["PHP_SELF"]        /info.php/foo/bar
_SERVER["QUERY_STRING"]    q=1

With mod_proxy_fcgi + ProxyPass
_SERVER["REQUEST_URI"]     /info.php/foo/bar?q=1
_SERVER["SCRIPT_NAME"]     /info.php
_SERVER["PATH_INFO"]       /foo/bar
_SERVER["PHP_SELF"]        /info.php/foo/bar
_SERVER["QUERY_STRING"]    q=1

Author: remicollet

sapi/fpm/fpm/fpm_main.c

@@ -1231,6 +1231,17 @@ static void init_request_info(TSRMLS_D)
 										SG(request_info).request_uri = orig_script_name;
 									}
 									path_info[0] = old;
+								} else if (apache_was_here && env_script_name) {
+									/* Using mod_proxy_fcgi and ProxyPass, apache cannot set PATH_INFO
+									 * As we can extract PATH_INFO from PATH_TRANSLATED
+									 * it is probably also in SCRIPT_NAME and need to be removed
+									 */
+									int snlen = strlen(env_script_name);
+									if (snlen>slen && !strcmp(env_script_name+snlen-slen, path_info)) {
+										_sapi_cgibin_putenv("ORIG_SCRIPT_NAME", orig_script_name TSRMLS_CC);
+										env_script_name[snlen-slen] = 0;
+										SG(request_info).request_uri = _sapi_cgibin_putenv("SCRIPT_NAME", env_script_name TSRMLS_CC);
+									}
 								}
 								env_path_info = _sapi_cgibin_putenv("PATH_INFO", path_info TSRMLS_CC);
 							}