<?php
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/*
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Copyright (c) 2007, Till Brehm, projektfarm Gmbh
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of ISPConfig nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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class squid_plugin {
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var $plugin_name = 'squid_plugin';
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var $class_name = 'squid_plugin';
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// private variables
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var $action = '';
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//* This function is called during ispconfig installation to determine
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// if a symlink shall be created for this plugin.
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function onInstall() {
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global $conf;
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if(isset($conf['services']['proxy']) &&$conf['services']['proxy'] == true && isset($conf['squid']['installed']) && $conf['squid']['installed'] == true) {
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return true;
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} else {
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return false;
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}
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}
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/*
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This function is called when the plugin is loaded
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*/
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function onLoad() {
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global $app;
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/*
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Register for the events
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*/
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$app->plugins->registerEvent('proxy_reverse_insert', $this->plugin_name, 'insert');
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$app->plugins->registerEvent('proxy_reverse_update', $this->plugin_name, 'update');
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$app->plugins->registerEvent('proxy_reverse_delete', $this->plugin_name, 'delete');
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$app->plugins->registerEvent('web_domain_insert', $this->plugin_name, 'insert');
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$app->plugins->registerEvent('web_domain_update', $this->plugin_name, 'update');
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$app->plugins->registerEvent('web_domain_delete', $this->plugin_name, 'delete');
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}
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function insert($event_name, $data) {
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global $app, $conf;
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// just run the update function
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$this->update($event_name, $data);
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}
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function update($event_name, $data) {
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global $app, $conf;
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$domains = $this->_getSquidDomains($app);
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$rules = $this->_getSquidRewriteRules($app);
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$app->load('tpl');
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$tpl = new tpl();
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$tpl->newTemplate("squidRewriteRules.py.master");
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if (!empty($rules))$tpl->setLoop('squid_rewrite_rules', $rules);
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file_put_contents('/etc/squid/squidRewriteRules.py', $tpl->grab());
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unset($tpl);
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$app->log('Writing squid rewrite configuration to /etc/squid/squidRewriteRules.py', LOGLEVEL_DEBUG);
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$tpl = new tpl();
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$tpl->newTemplate("domains.txt.master");
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$tpl->setLoop('squid_domains', $domains);
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file_put_contents('/etc/squid/domains.txt', $tpl->grab());
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unset($tpl);
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$app->log('Writing squid domains configuration to /etc/squid/domains.txt', LOGLEVEL_DEBUG);
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// request a httpd reload when all records have been processed
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$app->services->restartServiceDelayed('squid', 'restart');
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}
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function delete($event_name, $data) {
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global $app, $conf;
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// load the server configuration options
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// just run the update function
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$this->update($event_name, $data);
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}
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function _getSquidDomains($app)
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{
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$records = $app->dbmaster->queryAllRecords("SELECT ds.origin, dr.name, IF(origin=name,true,false) AS isRoot FROM dns_soa ds inner join dns_rr dr ON ds.id=dr.zone WHERE ds.active='Y' AND dr.type IN ('A','CNAME') AND dr.name NOT IN ('mail','ns1')");
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$domains = array();
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foreach ($records as $record) {
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$origin = substr($record["origin"], 0, -1);
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if ($record["isRoot"])
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{
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array_push($domains, array("domain" => $origin));
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} else {
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array_push($domains, array("domain" => $record["name"].".".$origin));
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}
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}
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return $domains;
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}
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function _getSquidRewriteRules($app)
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{
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$rules = array();
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$rules = $app->db->queryAllRecords("SELECT rewrite_url_src, rewrite_url_dest FROM squid_reverse ORDER BY rewrite_id ASC");
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$web_domains = $app->db->queryAllRecords("SELECT wd.subdomain, wd.domain, si.ip_address FROM web_domain wd INNER JOIN server s USING(server_id) INNER JOIN server_ip si USING(server_id)");
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foreach ($web_domains as $domain) {
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if ($domain["subdomain"] == "www") {
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array_push($rules, array("rewrite_url_src"=>"^http://www.".$domain["domain"]."/(.*)", "rewrite_url_dest"=>"http://".$domain["ip_address"].":80/"));
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array_push($rules, array("rewrite_url_src"=>"^http://".$domain["domain"]."/(.*)", "rewrite_url_dest"=>"http://".$domain["ip_address"].":80/"));
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} else {
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array_push($rules, array("rewrite_url_src"=>"^http://www.".$domain["domain"]."/(.*)", "rewrite_url_dest"=>"http://".$domain["ip_address"].":80/"));
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}
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}
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return $rules;
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}
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} // end class
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?>
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