From df6fdbdb110ea28de4f5b9f540e01313ec217407 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Wed, 11 Oct 2017 13:19:19 +0200
Subject: [dnbd3] Fix CIDR generation for proxies, add baseconfig hook for
 clients

---
 .../dnbd3/baseconfig/getconfig.inc.php             | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 modules-available/dnbd3/baseconfig/getconfig.inc.php

(limited to 'modules-available/dnbd3/baseconfig/getconfig.inc.php')

diff --git a/modules-available/dnbd3/baseconfig/getconfig.inc.php b/modules-available/dnbd3/baseconfig/getconfig.inc.php
new file mode 100644
index 00000000..ae4d2924
--- /dev/null
+++ b/modules-available/dnbd3/baseconfig/getconfig.inc.php
@@ -0,0 +1,46 @@
+<?php
+
+if (!Dnbd3::isEnabled()) return;
+
+// Locations from closest to furthest (order)
+$locations = ConfigHolder::get('SLX_LOCATIONS');
+if ($locations === false) {
+	$locationIds = [0];
+} else {
+	$locationIds = explode(' ', $locations);
+	if (empty($locationIds)) {
+		$locationIds[] = 0;
+	}
+}
+
+$res = Database::simpleQuery('SELECT s.fixedip, m.clientip, sxl.locationid FROM dnbd3_server s
+		LEFT JOIN machine m USING (machineuuid)
+		LEFT JOIN dnbd3_server_x_location sxl USING (serverid)
+		WHERE sxl.locationid IS NULL OR sxl.locationid IN (:lids)', array('lids' => $locationIds));
+// Lookup of priority - first index (0) will be closest location in chain
+$locationsAssoc = array_flip($locationIds);
+$servers = array();
+while ($row = $res->fetch(PDO::FETCH_ASSOC)) {
+	if ($row['fixedip'] === '<self>') {
+		$row['fixedip'] = Property::getServerIp();
+		$defPrio = 2000;
+	} else {
+		$defPrio = 1000;
+	}
+	$ip = $row['clientip'] ? $row['clientip'] : $row['fixedip'];
+	if ($defPrio === 1000 && is_null($row['locationid'])) {
+		$serverLoc = Location::getFromIp($ip);
+		if ($serverLoc !== false) {
+			$row['locationid'] = $serverLoc;
+		}
+	}
+	$old = isset($servers[$ip]) ? $servers[$ip] : $defPrio;
+	if (is_null($row['locationid']) || !isset($locationsAssoc[$row['locationid']])) {
+		$servers[$ip] = min($defPrio, $old);
+	} else {
+		$servers[$ip] = min($locationsAssoc[$row['locationid']], $old);
+	}
+}
+
+asort($servers, SORT_NUMERIC | SORT_ASC);
+ConfigHolder::add('SLX_DNBD3_SERVERS', implode(' ', array_keys($servers)));
-- 
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