Received: (qmail 87625 invoked by uid 501); 2 Oct 2000 09:04:21 -0000
Message-Id: <20001002090421.87613.qmail@locus.apache.org>
Date: 2 Oct 2000 09:04:21 -0000
From: Dave Pickles <davep@hmgcc.gov.uk>
Reply-To: davep@hmgcc.gov.uk
To: submit@bugz.apache.org
Subject: Proxy server errors with MACOS FTP server
X-Send-Pr-Version: 3.110

>Number:         6615
>Category:       mod_proxy
>Synopsis:       Proxy server errors with MACOS FTP server
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apache
>State:          open
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Mon Oct 02 02:10:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     davep@hmgcc.gov.uk
>Release:        1.3.12
>Organization:
apache
>Environment:
RedHat Linux 6.2
>Description:
Attempting to browse an ftp site which uses MACOS Webstar ftp server gives
either an empty directory or a "invalid gateway" error.

This ftp server has a few unusual behaviours:

- attempting to GET a directory returns a 450 status not 550

- a SIZE operation on a directory succeeds but gives zero size

- MAC filenames can begin with "-" so LIST qualifiers look like filenames.
>How-To-Repeat:
connect to ftp://195.243.137.70 with and without a trailing slash.
>Fix:
--- proxy_ftp.c.old     Fri Sep 29 14:35:06 2000
+++ proxy_ftp.c Mon Oct  2 09:41:29 2000
@@ -1024,7 +1024,7 @@
        if (len != 0)
            ap_bvputs(f, "LIST ", path, CRLF, NULL);
        else
-           ap_bputs("LIST -lag" CRLF, f);
+           ap_bputs("LIST" CRLF, f);
        Explain1("FTP: LIST %s", (len == 0 ? "" : path));
     }
     else {
@@ -1055,7 +1055,7 @@
        return ap_proxyerror(r, HTTP_BAD_GATEWAY,
                             "Error reading from remote server");
     }
-    if (rc == 550) {
+    if ((rc == 550) || (rc == 450)) {                          /* MACOS returns 450 here */
        Explain0("FTP: RETR failed, trying LIST instead");
        parms = "d";
        ap_bvputs(f, "CWD ", path, CRLF, NULL);

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