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Introduce Smack's Modular Connection Architecture

Browse source 
This is a complete redesign of what was previously
XmppNioTcpConnection. The new architecture allows to extend an XMPP
client to server (c2s) connection with new transport bindings and
other extensions.
This commit is contained in:
Florian Schmaus 2020-04-04 13:03:31 +02:00
parent cec312fe64
commit cc636fff21
142 changed files with 6819 additions and 4068 deletions
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30
smack-resolver-javax/src/main/java/org/jivesoftware/smack/util/dns/javax/JavaxResolver.java
View file

@ -1,6 +1,6 @@
/**
*
* Copyright 2013-2019 Florian Schmaus
* Copyright 2013-2020 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -16,7 +16,6 @@
*/
package org.jivesoftware.smack.util.dns.javax;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
@ -34,10 +33,10 @@ import org.jivesoftware.smack.ConnectionConfiguration.DnssecMode;
import org.jivesoftware.smack.initializer.SmackInitializer;
import org.jivesoftware.smack.util.DNSUtil;
import org.jivesoftware.smack.util.dns.DNSResolver;
import org.jivesoftware.smack.util.dns.HostAddress;
import org.jivesoftware.smack.util.dns.SRVRecord;
import org.jivesoftware.smack.util.rce.RemoteConnectionEndpointLookupFailure;
import org.minidns.dnsname.DnsName;
import org.minidns.record.SRV;
/**
* A DNS resolver (mostly for SRV records), which makes use of the API provided in the javax.* namespace.
@ -84,9 +83,8 @@ public class JavaxResolver extends DNSResolver implements SmackInitializer {
}
@Override
protected List<SRVRecord> lookupSRVRecords0(DnsName name, List<HostAddress> failedAddresses, DnssecMode dnssecMode) {
List<SRVRecord> res = null;
protected List<SRV> lookupSrvRecords0(DnsName name, List<RemoteConnectionEndpointLookupFailure> lookupFailures,
DnssecMode dnssecMode) {
Attribute srvAttribute;
try {
Attributes dnsLookup = dirContext.getAttributes(name.ace, new String[] { "SRV" });
@ -97,14 +95,16 @@ public class JavaxResolver extends DNSResolver implements SmackInitializer {
LOGGER.log(Level.FINEST, "No DNS SRV RR found for " + name, e);
return null;
} catch (NamingException e) {
LOGGER.log(Level.WARNING, "Exception while resolving DNS SRV RR for " + name, e);
RemoteConnectionEndpointLookupFailure failure = new RemoteConnectionEndpointLookupFailure.DnsLookupFailure(
name, e);
lookupFailures.add(failure);
return null;
}
List<SRV> res = new ArrayList<>();
try {
@SuppressWarnings("unchecked")
NamingEnumeration<String> srvRecords = (NamingEnumeration<String>) srvAttribute.getAll();
res = new ArrayList<>();
while (srvRecords.hasMore()) {
String srvRecordString = srvRecords.next();
String[] srvRecordEntries = srvRecordString.split(" ");
@ -118,19 +118,15 @@ public class JavaxResolver extends DNSResolver implements SmackInitializer {
if (srvTarget.length() > 0 && srvTarget.charAt(srvTarget.length() - 1) == '.') {
srvTarget = srvTarget.substring(0, srvTarget.length() - 1);
}
DnsName host = DnsName.from(srvTarget);
List<InetAddress> hostAddresses = lookupHostAddress0(host, failedAddresses, dnssecMode);
if (shouldContinue(name, host, hostAddresses)) {
continue;
}
SRVRecord srvRecord = new SRVRecord(host, port, priority, weight, hostAddresses);
SRV srvRecord = new SRV(priority, weight, port, srvTarget);
res.add(srvRecord);
}
}
catch (NamingException e) {
LOGGER.log(Level.SEVERE, "Exception while resolving DNS SRV RR for" + name, e);
RemoteConnectionEndpointLookupFailure failure = new RemoteConnectionEndpointLookupFailure.DnsLookupFailure(
name, e);
lookupFailures.add(failure);
}
return res;