To: feedback@ml.delegate.org
Date: Wed Aug 13 15:23:59 JST 2014
Subject: DeleGate/9.9.11 (STABLE) -- fixes/extensions on HTTP origin server
From: feedback@delegate.org (Yutaka Sato)
Reply-To: feedback@delegate.org
Organization: The DeleGate Project
Message-Id: <1Jwlxh.feedback@delegate.org>
References: <1JrGzc.feedback@delegate.org> <1JurhJ.feedback@delegate.org>
<1JwhBV.feedback@delegate.org>
Dear DeleGate users,
I inform you of the new release of DeleGate available as follows:
--------------------------------------------------------------------------
DeleGate/9.9.11 (STABLE) -- fixes around chained HTTP and HTTPS proxy
August 13, 2014
--------------------------------------------------------------------------
This release includes fixes and extensions on DeleGate as a HTTP origin
server.
DeleGate/9.9.11-pre1 STABLE(beta) is released including fixes about
the MOUNT parameter to realize HTTP reverse proxy and HTTP origin
server with CGI and SSI.
HTTP (URL-path based reverse proxy and origin server)
- Fixed failure in URL rewriting for HTTP response message.
Fortunately, it occurs rarely and the effect is not fatal.
It rewrites a string out of tag which looks like a tag attribute
as "url=xxx" for example. It can occur after each boundary of
buffered input for response message.
- DeleGate both as reverse proxy and origin server, configured as
bellow, may suffer from the failure.
MOUNT="/path1/* http://server/*" ... reverse proxy
MOUNT="/path2/* file:/path/of/www/*" ... origin server
- There is no workaround to escape the problem in former versions.
SSI (rewriting URLs in local HTML included from SHTML)
- Fixed failure in rewriting URLs in .html of local file included
from .shtml.
- An example of the failure is as follows:
An example of SHTML tag:
<!--#include virtual=example.cgi -->
An example of HTML tag in output from example.cgi:
<A HREF=example.html>
The HTML tag can be rewritten by failure to:
<A HREF=http://physical-hostname/dir-of-shtml/example.html>
- There is no workaround to escape the problem in former versions.
CGI (CGI scripts in a CGI directory and CGI with extra path info.)
- Fixed MOUNT for CGI directory to work with definition as bellow:
MOUNT="/cgi-bin/* cgi:/path/of/cgi-bin/*"
- Fixed interpretation of CGI URL with extra path as bellow:
http://server/path/script.cgi/extra/path?query
- These problems have been since version 8.6.0 in March 2003.
So there seems no user of this feature :O
FTP (logging data larger than 4GB uploaded to local file)
- Fixed response message and logging data of FTP origin server.
The problem is limited to DeleGate working as an origin FTP
server and when a file larger than 4GB is uploaded to local file.
- DeleGate as a FTP origin server allowing upload to local file
is defined as bellow:
MOUNT="/* file:/path/* rw"
- Added logging of upload to local file into the xferlog
file (LOGDIR/PORT.ftp).
Documentation (reference manual)
- Made the reference manual a bit more readable :) using CSS.
----
DeleGate/9.9.11-pre2 STABLE(beta) is released including modification
about HTML filter and SSI.
HTML filter (HTML part extraction filter)
- Extended the HTML part filter to copy META and STYLE tags in the
original HTML into the extracted HTML.
- The HTML part filter of DeleGate is a filter that extracts a part
of HTML named as "<A NAME=yyy>" in "xxx.html" by a URL "xxx.html?yyy".
In the extracted HTML, an original label reference "<A HREF=#zzz>"
is converted to "<A HREF=xxx.html?zzz>".
The filter is applied to local HTML files when DeleGate is working
as an original HTTP server. (It should be applicable also to
local/remote HTML response included by SSI include).
- Output HTML of the filter for the reserved part name ".parts"
(referred by "[ALL]" at the beginning of each extracted part) is
refined a little.
- Manual.htm, the reference manual, is revised to fit the filtering.
- Example:
<URL:http://www.delegate.org/delegate/Manual.htm?general>
<URL:http://www.delegate.org/delegate/Manual.htm?.parts>
SSI (Server Side Include in SHTML)
- Fixed reverse rewriting (for MOUNT) to virtual URLs of URLs in
included HTML by SSI when DeleGate is serving as a name based
virtual host.
-Fimp option (Implanted configuration parameters)
- Fixed -Fimp option to make it work again. It was disabled in
version 9.9.7-pre24 (Feb. 2010).
----
DeleGate/9.9.11-pre3 STABLE(beta) is released including modification
to improve SSI and documentation.
SSI (Fix and extensions for Server Side Include in SHTML)
- Fixed to prevent stack overflow by deep recursion (possibly in
infinite loop) of SSI include.
- Introduced <!--#config var=VBASE val=URL --> in including HTML
to be used as the BASE URL of rewritten URLs in included HTML.
- Introduced ${SELF} and ${VBASE} to be prefixed to hyper links
in included HTML. ${SELF} is substituted by the URL of included
HTML itself while ${VBASE} is substituted by the VBASE defined
in the including HTML.
- Made hyperlink URL from relative one to absolute one in the context
of the included HTML, HREF="?query" or HREF="#label" for example.
- Introduced ${QUERY_STRING} and ${QUERY_STRING?string1:string2} to
be used in the URL in including HTML as
<!--#include virtual=URL?${QUERY_STRING} -->
- Made customizable the format of <PRE>, to wrap a included plain
text, with CSS style of "#plainpre"
DOCUMENT (Manual.htm)
- Manual.htm, the reference manual, is revised to use the extended
features of SSI include.
Cheers from Japan,
Yutaka
--
9 9 Yutaka Sato { Do the more with the less -- B. Fuller }
( ~ ) National Institute of Advanced Industrial Science and Technology
_< >_ 1-1-4 Umezono, Tsukuba, Ibaraki, 305-8568 Japan