From 2bf954897109fc761a6aa39bfc4479e087671200 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Wed, 11 Oct 2017 16:01:18 +0200
Subject: [dnbd3] Implement adding and deleting servers

---
 modules-available/dnbd3/page.inc.php | 83 +++++++++++++++++++++++++++++++++++-
 1 file changed, 81 insertions(+), 2 deletions(-)

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

diff --git a/modules-available/dnbd3/page.inc.php b/modules-available/dnbd3/page.inc.php
index 213afa03..3489cc5b 100644
--- a/modules-available/dnbd3/page.inc.php
+++ b/modules-available/dnbd3/page.inc.php
@@ -16,6 +16,8 @@ class Page_Dnbd3 extends Page
 			Dnbd3Util::updateServerStatus();
 		} elseif ($action === 'delserver') {
 			$this->deleteServer();
+		} elseif ($action === 'addserver') {
+			$this->addServer();
 		} elseif ($action === 'savelocations') {
 			$this->saveServerLocations();
 		}
@@ -41,6 +43,45 @@ class Page_Dnbd3 extends Page
 		}
 	}
 
+	private function addServer()
+	{
+		$ip = Request::post('newip', false, 'string');
+		if ($ip === false) {
+			Message::addError('main.parameter-missing', 'ip');
+			return;
+		}
+		$ip = ip2long(trim($ip));
+		if ($ip !== false) {
+			$ip = long2ip($ip);
+		}
+		if ($ip === false) {
+			Message::addError('invalid-ipv4', $ip);
+			return;
+		}
+		$res = Database::queryFirst('SELECT serverid FROM dnbd3_server s
+					LEFT JOIN machine m USING (machineuuid)
+					WHERE s.fixedip = :ip OR m.clientip = :ip', compact('ip'));
+		if ($res !== false) {
+			Message::addError('server-already-exists', $ip);
+			return;
+		}
+		Database::exec('INSERT INTO dnbd3_server (fixedip) VALUES (:ip)', compact('ip'));
+		Message::addSuccess('server-added', $ip);
+	}
+
+	private function deleteServer()
+	{
+		$server = $this->getServerById();
+		if ($server['fixedip'] === '<self>')
+			return;
+		if (!is_null($server['machineuuid'])) {
+			RunMode::setRunMode($server['machineuuid'], 'dnbd3', null, null, null);
+		}
+		Database::exec('DELETE FROM dnbd3_server WHERE serverid = :serverid',
+			array('serverid' => $server['serverid']));
+		Message::addSuccess('server-deleted', $server['ip']);
+	}
+
 	/*
 	 * RENDER
 	 */
@@ -185,14 +226,16 @@ class Page_Dnbd3 extends Page
 			$serverId = Request::any('server', false, 'int');
 		}
 		if ($serverId === false) {
-			// TODO: Missing param
+			Message::addError('parameter-missing', 'server');
+			Util::redirect('?do=dnbd3');
 		}
 		$server = Database::queryFirst('SELECT s.serverid, s.machineuuid, s.fixedip, m.clientip, m.hostname
 			FROM dnbd3_server s
 			LEFT JOIN machine m USING (machineuuid)
 			WHERE s.serverid = :serverId', compact('serverId'));
 		if ($server === false) {
-			// TODO: Not found
+			Message::addError('server-non-existent', 'server');
+			Util::redirect('?do=dnbd3');
 		}
 		if (!is_null($server['clientip'])) {
 			$server['ip'] = $server['clientip'];
@@ -204,4 +247,40 @@ class Page_Dnbd3 extends Page
 		return $server;
 	}
 
+	/*
+	 * AJAX
+	 */
+
+	protected function doAjax()
+	{
+		$action = Request::post('action', false, 'string');
+		if ($action === 'servertest') {
+			Header('Content-Type: application/json; charset=utf-8');
+			$ip = Request::post('ip', false, 'string');
+			if ($ip === false)
+				die('{"error": "Missing parameter", "fatal": true}');
+			$ip = ip2long(trim($ip));
+			if ($ip !== false) {
+				$ip = long2ip($ip);
+			}
+			if ($ip === false)
+				die('{"error": "Supports IPv4 only", "fatal": true}');
+			// Dup?
+			$res = Database::queryFirst('SELECT serverid FROM dnbd3_server s
+					LEFT JOIN machine m USING (machineuuid)
+					WHERE s.fixedip = :ip OR m.clientip = :ip', compact('ip'));
+			if ($res !== false)
+				die('{"error": "Server with this IP already exists", "fatal": true}');
+			// Query
+			$reply = Dnbd3Rpc::query(true, false, false, $ip);
+			if ($reply === false)
+				die('{"error": "Could not reach server"}');
+			if (!is_array($reply))
+				die('{"error": "No JSON received from server"}');
+			if (!isset($reply['uptime']) || !isset($reply['clientCount']))
+				die('{"error": "Reply does not suggest this is a dnbd3 server"}');
+			echo json_encode($reply);
+		}
+	}
+
 }
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