[PHP-DEV] Bug #10322 Updated: Logical error in fopen-wrappers.c From: jmoore <email protected>
Date: 04/14/01

ID: 10322
Updated by: jmoore
Reported By: php-bugrep <email protected>
Status: Open
Bug Type: PHP options/info functions
PHP Version: 4.0.4pl1
Assigned To:
Comments:

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

Previous Comments:
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[2001-04-13 20:57:35] php-bugrep <email protected>
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 <email protected>
+ */
+ 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 = ' 

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