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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 18579] New: - Added header X-Forwarded-Port
Date Tue, 01 Apr 2003 19:12:04 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18579

Added  header X-Forwarded-Port

           Summary: Added  header X-Forwarded-Port
           Product: Apache httpd-1.3
           Version: 1.3.27
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Other
         Component: mod_proxy
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: Michael.Szalay@basis06.com


As we needed Apache with mod_proxy as accelerator for a java web server, we had
the problem that the proxied server needed location awareness but could retrieve
the client's port address. The clients ip address is read from the header
X-Forwarded-For, for the remote port informationen, we added the following code
snippet to mod_proxy so that it creates  X-Forwarded-Port as an additional
request header. 

 /* Add X-Forwarded-Server: so that upstream knows what the
         * name of this proxy server is (if there are more than one)
         * XXX: This duplicates Via: - do we strictly need it?
         */
        ap_table_mergen(req_hdrs, "X-Forwarded-Server", r->server->server_hostname);

	/** ADDED BY MICHAEL SZALAY */

	/* Add  X-Forwarded Port: some webservers need to know this
	 */
	 int remote_port = r->connection->remote_addr.sin_port;

	 /* use sprintf to convert string to int */
	 char str[50];
	 int i;
 	 i = sprintf(str, "%d", remote_port);

	 /* put into header */
	 ap_table_mergen(req_hdrs, "X-Forwarded-Port", str);

	 /* END ADDED BY MICHAEL SZALAY */

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