PHP 4.0 Bug #10322 Updated: Logical error in fopen-wrappers.c

ID: 10322 User Update by: php-bugrep@pgregg.com Status: Open Bug Type: PHP options/info functions Description: Logical error in fopen-wrappers.c Thanks for the response, however, can you confirm that there is a logical coding error here? The DOCUMENT_ROOT patch is secondary and would be nice - but is the bug going to be fixed in 4.0.5 ? Regards, Paul. Previous Comments: --------------------------------------------------------------------------- [2001-04-14 05:34:04] jmoore@php.net This will not make it into 4.0.5 as this was branched a while back but it might well make it into 4.0.6. Ill get a developer to look at this patch. - James --------------------------------------------------------------------------- [2001-04-13 20:57:35] php-bugrep@pgregg.com I thought, while I'm here, I'd submit a patch to fix this. The patch also includes support for an additional special case in php.ini's open_basedir. The current "." allows scripts to access files in the same directory as the script. "DOCUMENT_ROOT" allows a script to access any other file in the virtualhost's directory tree. DOCUMENT_ROOT is calculated by PATH_TRANSLATED and removing SCRIPT_URI from the end - This conveniently works for both full Apache Virtalhosts and mod_aliased Mass virtual hosting (I don't know if this is true for the newer mod_vhost - just check what PATH_TRANSLATED and SCRIPT_URI is set to in phpinfo() - if removing the latter from the former is the sites docroot then you are away). Anyway, the patch: code shamelessly copied from the "." segment :) *** main/fopen-wrappers.c.orig Fri Apr 13 17:50:02 2001 --- main/fopen-wrappers.c Sat Apr 14 01:46:28 2001 *************** *** 141,151 **** char resolved_name[MAXPATHLEN]; char resolved_basedir[MAXPATHLEN]; char local_open_basedir[MAXPATHLEN]; int local_open_basedir_pos; SLS_FETCH(); /* Special case basedir==".": Use script-directory */ ! if ((strcmp(PG(open_basedir), ".") == 0) && SG(request_info).path_translated && *SG(request_info).path_translated ) { --- 141,167 ---- char resolved_name[MAXPATHLEN]; char resolved_basedir[MAXPATHLEN]; char local_open_basedir[MAXPATHLEN]; + char *local_open_request_uri; int local_open_basedir_pos; SLS_FETCH(); + /* Special case basedir="DOCUMENT_ROOT": Restrict to directory of the + * virtualhost itself as calculated by PATH_TRANSLATED - SCRIPT_URI + * php@pgregg.com + */ + if ((strcmp(basedir, "DOCUMENT_ROOT") == 0) && + SG(request_info).path_translated && + *SG(request_info).path_translated ) { + /* Copy path_translated to local_open_basedir, the look in + this string for where request_uri starts and zero that byte + thus leaving local_open_basedir set to the virtualhost's + DOCUMENT_ROOT */ + strlcpy(local_open_basedir, SG(request_info).path_translated, si zeof(local_open_basedir)); + local_open_request_uri=strstr(local_open_basedir,SG(request_info ).request_uri); + if (local_open_request_uri) *local_open_request_uri = '