#!/usr/bin/perl -w

#

# Licensed to the Apache Software Foundation (ASF) under one or more

# contributor license agreements.  See the NOTICE file distributed with

# this work for additional information regarding copyright ownership.

# The ASF licenses this file to You under the Apache License, Version 2.0

# (the "License"); you may not use this file except in compliance with

# the License.  You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

#

# This is meant to be used on the raw output of an HTTP/1.1 connection

# to check that the chunks are all correctly laid out.  It's easiest

# to use a tool like netcat to generate the output.  This script

# *insists* that \r exist in the output.

#

# You can find netcat at avian.org:/src/hacks/nc110.tgz.

use strict;

my $is_chunked = 0;

# must toss headers

while(<>) {

    if (/^Transfer-Encoding:\s+chunked/i) {

	$is_chunked = 1;

    }

    last if ($_ eq "\r\n");

}

$is_chunked || die "wasn't chunked\n";

for(;;) {

    $_ = <> || die "unexpected end of file!\n";

    m#^([0-9a-f]+) *\r$#i || die "bogus chunklen: $_";

    my $chunklen = hex($1);

    exit 0 if ($chunklen == 0);

    chop; chop;

    print "$_ ";

    my $data = '';

    read(ARGV, $data, $chunklen) == $chunklen || die "short read!\n";

    $_ = <> || die "unexpected end of file!\n";

    $_ eq "\r\n" || die "missing chunk trailer!\n";

}