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#!/usr/bin/php
<?php
/**
* httpd log demultiplexer
*
* Copyright (C) 2014 Inria (Sylvain Beucler)
*
* This file is part of FusionForge. FusionForge is free software;
* you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software
* Foundation; either version 2 of the Licence, or (at your option)
* any later version.
*
* FusionForge is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with FusionForge; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* Separate logs for each project homepages.
* Best used with mod_vhost_alias and a shared CustomLog directive.
* Not creating log directories because of faked hostnames.
* Caution: this will be run as root. Keep it simple.
*/
if (count($argv) < 3) {
echo "Usage: {$argv[0]} dir_template project_pregexp\n";
echo " ex: CustomLog \"||{$argv[0]} /home/logs/%/raw/access.log /([-_a-zA-Z0-9]+)\.yourforge\.tld/\" combined\n";
exit(1);
}
$dir_template = $argv[1];
$project_regexp = $argv[2];
$stdin = fopen('php://stdin', 'r') or die("Can't read standard input.");
while(($line = fgets($stdin)) !== false) {
if (!preg_match($project_regexp, $line, $matches)) {
error_log("httpd_log_demux: line doesn't match project_pregexp: $line");
} else {
$project = $matches[1];
if (!preg_match('/^[a-z0-9][-a-z0-9_\.]+\z/', $project)) { // project name, or domain name if DNS alias
error_log("httpd_log_demux: project name is invalid: '$project'");
} else {
$logfile = str_replace('%', $project, $dir_template);
$f = fopen($logfile, 'a');
if ($f != null) {
fwrite($f, $line);
fclose($f);
}
}
}
}
fclose($stdin);
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