From 9c94c9ad8fe10aa1ffeb122b1db114680a7d95a2 Mon Sep 17 00:00:00 2001 From: Daniel Gultsch Date: Fri, 24 Jul 2015 19:06:47 +0200 Subject: [PATCH] rewrote dns fallback --- .../eu/siacs/conversations/utils/DNSHelper.java | 15 ++++++--------- .../siacs/conversations/xmpp/XmppConnection.java | 3 +++ 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/src/main/java/eu/siacs/conversations/utils/DNSHelper.java b/src/main/java/eu/siacs/conversations/utils/DNSHelper.java index 36d03b30a..60e1f0beb 100644 --- a/src/main/java/eu/siacs/conversations/utils/DNSHelper.java +++ b/src/main/java/eu/siacs/conversations/utils/DNSHelper.java @@ -38,17 +38,14 @@ public class DNSHelper { public static Bundle getSRVRecord(final Jid jid) throws IOException { final String host = jid.getDomainpart(); String dns[] = client.findDNS(); - - if (dns != null) { - for (String dnsserver : dns) { - InetAddress ip = InetAddress.getByName(dnsserver); - Bundle b = queryDNS(host, ip); - if (b.containsKey("values")) { - return b; - } + for (int i = 0; i < dns.length; ++i) { + InetAddress ip = InetAddress.getByName(dns[i]); + Bundle b = queryDNS(host, ip); + if (b.containsKey("values") || i == dns.length - 1) { + return b; } } - return queryDNS(host, InetAddress.getByName("8.8.8.8")); + return null; } public static Bundle queryDNS(String host, InetAddress dnsServer) { diff --git a/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java b/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java index 7c81d988c..c41c5174e 100644 --- a/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java +++ b/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java @@ -164,6 +164,9 @@ public class XmppConnection implements Runnable { } } else { final Bundle result = DNSHelper.getSRVRecord(account.getServer()); + if (result == null) { + throw new IOException("unhandled exception in DNS resolver"); + } final ArrayList values = result.getParcelableArrayList("values"); if ("timeout".equals(result.getString("error"))) { throw new IOException("timeout in dns");