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I sent this query to modules-dev@xxxxxxxxxxxxxxxx and didn't get a response, so I thought I'd try this users DL... An Apple AirPrint Internet Printing Protocol (IPP) client (from either iOS or Mac OS) can send requests over IPv6 with an IPvFuture format (RFC 3986) IPv6 address in the Hostname HTTP Host Header value. The Hostname is of the form [v1:<ipv6
addr>+en0]. Where en0 is the interface of the requesting Mac. The Apache HTTP server is rejecting the request (with "400 Bad Request") due to this Hostname value in the header before a registered IPP Apache module even sees it. Is it possible to write a hook or filter that would prevent Apache from rejecting this request and allowing this Hostname Host Header value to pass thru, or does the Apache base source code need to change for this? The following is what is seen in the Apache log file: [Fri Aug 02 11:36:06 2013] [error] [client fe80::12dd:b1ff:fed6:d654] Client sent malformed Host header [Fri Aug 02 11:36:06 2013] [error] [client 2620:0:290:e012:12dd:b1ff:fed6:d654] Client sent malformed Host header and the Apache code that is logging this error appears to be fix_hostname() in ./server/vhost.c Thanks, Chris |
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