NAME
Apache::XPointer::XPath - mod_perl handler to address XML fragments using XPath.
SYNOPSIS
<Directory /foo/bar>
<FilesMatch "\.xml$">
SetHandler perl-script
PerlHandler Apache::XPointer::XPath
PerlSetVar XPointerSendRangeAs "multipart/mixed"
</FilesMatch>
</Directory>
#
my $ua = LWP::UserAgent->new();
my $req = HTTP::Request->new(GET => "http://example.com/foo/bar/baz.xml");
$req->header("Range" => qq(xmlns("x=x-urn:example")xpointer(*//x:thingy)));
$req->header("Accept" => qq(application/xml, multipart/mixed));
my $res = $ua->request($req);
DESCRIPTION
Apache::XPointer is a mod_perl handler to address XML fragments using the HTTP 1.1 Range and Accept headers and the XPath scheme, as described in the paper : A Semantic Web Resource Protocol: XPointer and HTTP.
Additionally, the handler may also be configured to recognize a conventional CGI parameter as a valid range identifier.
If no 'range' property is found, then the original document is sent unaltered.
If an Accept header is specified with no corresponding match, then the server will return (406) HTTP_NOT_ACCEPTABLE.
Successful queries will return (206) HTTP_PARTIAL_CONTENT.
OPTIONS
XPointerSendRangeAs
Return matches as one of the following content-types :
multipart/mixed
--match Content-type: text/xml; charset=UTF-8 <foo xmlns="x-urn:example:foo" xmlns:baz="x-urn:example:baz"> <baz:bar>hello</baz:bar> </foo> --match Content-type: text/xml; charset=UTF-8 <foo xmlns="x-urn:example:foo" xmlns:baz="x-urn:example:baz"> <baz:bar>world</baz:bar> </foo> --match--
application/xml
<xp:range xmlns:xp="x-urn:cpan:ascope:apache-xpointer#" xmlns:default="x-urn:example.com"> <xp:match> <default:foo> <default:bar>hello</default:bar> </default:foo> </xp:match> <xp:match> <default:foo> <default:bar>world</default:bar> </default:foo> </xp:match> </xp:range>
Required
XPointerAllowCGI
If set to On then the handler will check for CGI parameters as well as HTTP headers. CGI parameters are checked only if no matching HTTP header is present.
Case insensitive.
XPointerCGIRangeParam
The name of the CGI parameter to check for an XPath range.
Default is range
XPointerCGIAcceptParam
The name of the CGI parameter to list one or more acceptable content types for a response.
Default is accept
MOD_PERL COMPATIBILITY
This handler will work with both mod_perl 1.x and mod_perl 2.x.
VERSION
1.1
DATE
$Date: 2004/11/16 04:38:52 $
AUTHOR
Aaron Straup Cope <ascope@cpan.org>
SEE ALSO
LICENSE
Copyright (c) 2004 Aaron Straup Cope. All rights reserved.
This is free software, you may use it and distribute it under the same terms as Perl itself.