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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This script will take a combined Web server access
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# log file and break its contents into separate files.
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# It assumes that the first field of each line is the
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# virtual host identity (put there by "%v"), and that
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# the logfiles should be named that+".log" in the current
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# The combined log file is read from stdin. Records read
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# will be appended to any existing log files.
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while ($log_line = <STDIN>) {
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# Get the first token from the log record; it's the
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# identity of the virtual host to which the record
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($vhost) = split (/\s/, $log_line);
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# Normalize the virtual host name to all lowercase.
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# If it's blank, the request was handled by the default
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# server, so supply a default name. This shouldn't
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# happen, but caution rocks.
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$vhost = lc ($vhost) or "access";
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# if the vhost contains a "/" or "\", it is illegal so just use
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# the default log to avoid any security issues due if it is interprted
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# as a directory separator.
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if ($vhost =~ m#[/\\]#) { $vhost = "access" }
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# If the log file for this virtual host isn't opened
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if (! $is_open{$vhost}) {
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open $vhost, ">>${vhost}.log"
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or die ("Can't open ${vhost}.log");
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# Strip off the first token (which may be null in the
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# case of the default server), and write the edited
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# record to the current log file.
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$log_line =~ s/^\S*\s+//;
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printf $vhost "%s", $log_line;