#!@perlbin@

#

# 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 script will take a combined Web server access

# log file and break its contents into separate files.

# It assumes that the first field of each line is the

# virtual host identity (put there by "%v"), and that

# the logfiles should be named that+".log" in the current

# directory.

#

# The combined log file is read from stdin. Records read

# will be appended to any existing log files.

#

use strict;

use warnings;

my %log_file = ();

while (my $log_line = <STDIN>) {

    #

    # Get the first token from the log record; it's the

    # identity of the virtual host to which the record

    # applies.

    #

    my ($vhost) = split (/\s/, $log_line);

    #

    # Normalize the virtual host name to all lowercase.

    # If it's blank, the request was handled by the default

    # server, so supply a default name.  This shouldn't

    # happen, but caution rocks.

    #

    $vhost = lc ($vhost) || "access";

    #

    # if the vhost contains a "/" or "\", it is illegal so just use 

    # the default log to avoid any security issues due if it is interprted

    # as a directory separator.

    if ($vhost =~ m#[/\\]#) { $vhost = "access" }

    #

    # If the log file for this virtual host isn't opened

    # yet, do it now.

    #

    if (! $log_file{$vhost}) {

        open $log_file{$vhost}, ">>${vhost}.log"

            or die ("Can't open ${vhost}.log");

    }

    #

    # Strip off the first token (which may be null in the

    # case of the default server), and write the edited

    # record to the current log file.

    #

    $log_line =~ s/^\S*\s+//;

    print {$log_file{$vhost}} $log_line;

}

exit 0;