+<?php
+/*
+ * brisk - Obj/provider_proxy.phh
+ *
+ * Copyright (C) 2015 Matteo Nastasi
+ * mailto: nastasi@alternativeoutput.it
+ * matteo.nastasi@milug.org
+ * web: http://www.alternativeoutput.it
+ *
+ * This program 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 License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABLILITY 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 this program; if
+ * not, write to the Free Software Foundation, Inc, 59 Temple Place -
+ * Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+require_once("${G_base}Obj/ipclass.phh");
+
+$G_pproxy = array( "samosa" => array("headitem" => "X-Forwarded-For",
+ "ipclass" => array("107.178.33.0/24",
+ "107.178.34.0/24",
+ "107.178.35.0/24",
+ "107.178.37.0/24",
+ "107.178.38.0/24",
+ "107.178.39.0/24",
+ "107.178.41.0/24",
+ "107.178.42.0/24",
+ "107.178.43.0/24",
+ "107.178.45.0/24",
+ "107.178.46.0/24",
+ "107.178.47.0/24",
+ "206.173.221.0/24") ),
+ "mytest" => array("headitem" => "X-Forwarded-For",
+ "ipclass" => array("192.168.2.3/24") )
+ );
+
+class ProviderProxyItem
+{
+ var $name;
+ var $headitem;
+ var $ipclass;
+
+ function ProviderProxyItem($pp_name, $pp_descr)
+ {
+ $this->name = $pp_name;
+ $this->headitem = $pp_descr['headitem'];
+ $this->ipclass = IPClass::create($pp_descr['ipclass']);
+ }
+}
+
+
+class ProviderProxy
+{
+ var $pp;
+
+ function ProviderProxy()
+ {
+ $this->pp = NULL;
+ }
+
+ static function create($pproxy = NULL)
+ {
+ $thiz = new ProviderProxy();
+
+ if ($pproxy != NULL)
+ $thiz->update($pproxy);
+
+ return ($thiz);
+ }
+
+ function clean()
+ {
+ if ($this->pp != NULL) {
+ foreach ($this->pp as $pp_name) {
+ unset($this->pp[$pp_name]);
+ }
+ unset($this->pp);
+ $this->pp = NULL;
+ }
+ }
+
+ function update($pproxy)
+ {
+ $this->clean();
+
+ $this->pp = array();
+ foreach ($pproxy as $pp_name => $pp_descr) {
+ $this->pp[$pp_name] = new ProviderProxyItem($pp_name, $pp_descr);
+ }
+ }
+
+ function realip($headers, $ip)
+ {
+ if ($this->pp != NULL) {
+ foreach ($this->pp as $pp_name => $pp_item) {
+ if ($pp_item->match($ip)) {
+ if (isset($headers[$pp_item->headitem])) {
+ fprintf(STDERR, "Match public proxy [%s]\n", $pp_name);
+ return ($headers[$pp_item->headitem]);
+ }
+ }
+ }
+ }
+ return ($ip);
+ }
+}
+
+?>
\ No newline at end of file