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add helper methods for content modification to RtpContentMap

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This commit is contained in:
Daniel Gultsch 2022-11-22 10:13:48 +01:00
parent e2f98f6bbc
commit f4be142e4d
3 changed files with 137 additions and 22 deletions
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80
src/main/java/eu/siacs/conversations/xmpp/jingle/RtpContentMap.java
View file

@ -1,7 +1,9 @@
package eu.siacs.conversations.xmpp.jingle;
import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;
import com.google.common.base.Predicates;
import com.google.common.base.Strings;
import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableList;
@ -236,6 +238,23 @@ public class RtpContentMap {
throw new IllegalStateException("Content map doesn't have distinct DTLS setup");
}
private DTLS getDistinctDtls() {
final Set<DTLS> dtlsSet =
ImmutableSet.copyOf(
Collections2.transform(
contents.values(),
dt -> {
final IceUdpTransportInfo.Fingerprint fp =
dt.transport.getFingerprint();
return new DTLS(fp.getHash(), fp.getSetup(), fp.getContent());
}));
final DTLS dtls = Iterables.getFirst(dtlsSet, null);
if (dtlsSet.size() == 1 && dtls != null) {
return dtls;
}
throw new IllegalStateException("Content map doesn't have distinct DTLS setup");
}
public boolean emptyCandidates() {
int count = 0;
for (DescriptionTransport descriptionTransport : contents.values()) {
@ -262,12 +281,22 @@ public class RtpContentMap {
return new RtpContentMap(this.group, contentMapBuilder.build());
}
public RtpContentMap toContentModification(final Collection<String> modifications) {
return new RtpContentMap(
this.group,
Maps.transformValues(
Maps.filterKeys(contents, Predicates.in(modifications)),
dt ->
new DescriptionTransport(
dt.senders, dt.description, IceUdpTransportInfo.STUB)));
}
public Diff diff(final RtpContentMap rtpContentMap) {
final Set<String> existingContentIds = this.contents.keySet();
final Set<String> newContentIds = rtpContentMap.contents.keySet();
return new Diff(
Sets.difference(newContentIds, existingContentIds),
Sets.difference(existingContentIds, newContentIds));
ImmutableSet.copyOf(Sets.difference(newContentIds, existingContentIds)),
ImmutableSet.copyOf(Sets.difference(existingContentIds, newContentIds)));
}
public boolean iceRestart(final RtpContentMap rtpContentMap) {
@ -278,6 +307,26 @@ public class RtpContentMap {
}
}
public RtpContentMap addContent(final RtpContentMap modification) {
final IceUdpTransportInfo.Credentials credentials = getDistinctCredentials();
final DTLS dtls = getDistinctDtls();
final IceUdpTransportInfo iceUdpTransportInfo =
IceUdpTransportInfo.of(credentials, dtls.setup, dtls.hash, dtls.fingerprint);
final Map<String, DescriptionTransport> combined =
new ImmutableMap.Builder<String, DescriptionTransport>()
.putAll(contents)
.putAll(
Maps.transformValues(
modification.contents,
dt ->
new DescriptionTransport(
dt.senders,
dt.description,
iceUdpTransportInfo)))
.build();
return new RtpContentMap(modification.group, combined);
}
public static class DescriptionTransport {
public final Content.Senders senders;
public final RtpDescription description;
@ -370,4 +419,31 @@ public class RtpContentMap {
.toString();
}
}
public static final class DTLS {
public final String hash;
public final IceUdpTransportInfo.Setup setup;
public final String fingerprint;
private DTLS(String hash, IceUdpTransportInfo.Setup setup, String fingerprint) {
this.hash = hash;
this.setup = setup;
this.fingerprint = fingerprint;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
DTLS dtls = (DTLS) o;
return Objects.equal(hash, dtls.hash)
&& setup == dtls.setup
&& Objects.equal(fingerprint, dtls.fingerprint);
}
@Override
public int hashCode() {
return Objects.hashCode(hash, setup, fingerprint);
}
}
}

9
src/main/java/eu/siacs/conversations/xmpp/jingle/WebRTCWrapper.java
View file

@ -186,15 +186,22 @@ public class WebRTCWrapper {
}
@Override
public void onTrack(RtpTransceiver transceiver) {
public void onTrack(final RtpTransceiver transceiver) {
Log.d(
EXTENDED_LOGGING_TAG,
"onTrack(mid="
+ transceiver.getMid()
+ ",media="
+ transceiver.getMediaType()
+ ",direction="
+ transceiver.getDirection()
+ ")");
}
@Override
public void onRemoveTrack(final RtpReceiver receiver) {
Log.d(EXTENDED_LOGGING_TAG, "onRemoveTrack(" + receiver.id() + ")");
}
};
@Nullable private PeerConnectionFactory peerConnectionFactory = null;
@Nullable private PeerConnection peerConnection = null;

70
src/main/java/eu/siacs/conversations/xmpp/jingle/stanzas/IceUdpTransportInfo.java
View file

@ -12,8 +12,6 @@ import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.LinkedHashMap;
@ -28,23 +26,29 @@ import eu.siacs.conversations.xmpp.jingle.SessionDescription;
public class IceUdpTransportInfo extends GenericTransportInfo {
public static final IceUdpTransportInfo STUB = new IceUdpTransportInfo();
public IceUdpTransportInfo() {
super("transport", Namespace.JINGLE_TRANSPORT_ICE_UDP);
}
public static IceUdpTransportInfo upgrade(final Element element) {
Preconditions.checkArgument("transport".equals(element.getName()), "Name of provided element is not transport");
Preconditions.checkArgument(Namespace.JINGLE_TRANSPORT_ICE_UDP.equals(element.getNamespace()), "Element does not match ice-udp transport namespace");
Preconditions.checkArgument(
"transport".equals(element.getName()), "Name of provided element is not transport");
Preconditions.checkArgument(
Namespace.JINGLE_TRANSPORT_ICE_UDP.equals(element.getNamespace()),
"Element does not match ice-udp transport namespace");
final IceUdpTransportInfo transportInfo = new IceUdpTransportInfo();
transportInfo.setAttributes(element.getAttributes());
transportInfo.setChildren(element.getChildren());
return transportInfo;
}
public static IceUdpTransportInfo of(SessionDescription sessionDescription, SessionDescription.Media media) {
public static IceUdpTransportInfo of(
SessionDescription sessionDescription, SessionDescription.Media media) {
final String ufrag = Iterables.getFirst(media.attributes.get("ice-ufrag"), null);
final String pwd = Iterables.getFirst(media.attributes.get("ice-pwd"), null);
IceUdpTransportInfo iceUdpTransportInfo = new IceUdpTransportInfo();
final IceUdpTransportInfo iceUdpTransportInfo = new IceUdpTransportInfo();
if (ufrag != null) {
iceUdpTransportInfo.setAttribute("ufrag", ufrag);
}
@ -56,7 +60,15 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
iceUdpTransportInfo.addChild(fingerprint);
}
return iceUdpTransportInfo;
}
public static IceUdpTransportInfo of(
final Credentials credentials, final Setup setup, final String hash, final String fingerprint) {
final IceUdpTransportInfo iceUdpTransportInfo = new IceUdpTransportInfo();
iceUdpTransportInfo.addChild(Fingerprint.of(setup, hash, fingerprint));
iceUdpTransportInfo.setAttribute("ufrag", credentials.ufrag);
iceUdpTransportInfo.setAttribute("pwd", credentials.password);
return iceUdpTransportInfo;
}
public Fingerprint getFingerprint() {
@ -91,7 +103,8 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
transportInfo.setAttribute("ufrag", credentials.ufrag);
transportInfo.setAttribute("pwd", credentials.password);
for (final Element child : getChildren()) {
if (child.getName().equals("fingerprint") && Namespace.JINGLE_APPS_DTLS.equals(child.getNamespace())) {
if (child.getName().equals("fingerprint")
&& Namespace.JINGLE_APPS_DTLS.equals(child.getNamespace())) {
final Fingerprint fingerprint = new Fingerprint();
fingerprint.setAttributes(new Hashtable<>(child.getAttributes()));
fingerprint.setContent(child.getContent());
@ -231,7 +244,7 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
return getAttributeAsInt("rel-port");
}
public String getType() { //TODO might be converted to enum
public String getType() { // TODO might be converted to enum
return getAttribute("type");
}
@ -256,7 +269,8 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
checkNotNullNoWhitespace(protocol, "protocol");
final String transport = protocol.toLowerCase(Locale.ROOT);
if (!"udp".equals(transport)) {
throw new IllegalArgumentException(String.format("'%s' is not a supported protocol", transport));
throw new IllegalArgumentException(
String.format("'%s' is not a supported protocol", transport));
}
final String priority = this.getAttribute("priority");
checkNotNullNoWhitespace(priority, "priority");
@ -284,7 +298,15 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
if (ufrag != null) {
additionalParameter.put("ufrag", ufrag);
}
final String parametersString = Joiner.on(' ').join(Collections2.transform(additionalParameter.entrySet(), input -> String.format("%s %s", input.getKey(), input.getValue())));
final String parametersString =
Joiner.on(' ')
.join(
Collections2.transform(
additionalParameter.entrySet(),
input ->
String.format(
"%s %s",
input.getKey(), input.getValue())));
return String.format(
"candidate:%s %s %s %s %s %s %s",
foundation,
@ -293,20 +315,19 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
priority,
connectionAddress,
port,
parametersString
);
parametersString);
}
}
private static void checkNotNullNoWhitespace(final String value, final String name) {
if (Strings.isNullOrEmpty(value)) {
throw new IllegalArgumentException(String.format("Parameter %s is missing or empty", name));
throw new IllegalArgumentException(
String.format("Parameter %s is missing or empty", name));
}
SessionDescription.checkNoWhitespace(value, String.format("Parameter %s contains white spaces", name));
SessionDescription.checkNoWhitespace(
value, String.format("Parameter %s contains white spaces", name));
}
public static class Fingerprint extends Element {
private Fingerprint() {
@ -340,11 +361,20 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
return null;
}
public static Fingerprint of(final SessionDescription sessionDescription, final SessionDescription.Media media) {
public static Fingerprint of(
final SessionDescription sessionDescription, final SessionDescription.Media media) {
final Fingerprint fingerprint = of(media.attributes);
return fingerprint == null ? of(sessionDescription.attributes) : fingerprint;
}
private static Fingerprint of(final Setup setup, final String hash, final String content) {
final Fingerprint fingerprint = new Fingerprint();
fingerprint.setContent(content);
fingerprint.setAttribute("hash", hash);
fingerprint.setAttribute("setup", setup.toString().toLowerCase(Locale.ROOT));
return fingerprint;
}
public String getHash() {
return this.getAttribute("hash");
}
@ -356,7 +386,9 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
}
public enum Setup {
ACTPASS, PASSIVE, ACTIVE;
ACTPASS,
PASSIVE,
ACTIVE;
public static Setup of(String setup) {
try {
@ -373,7 +405,7 @@ public class IceUdpTransportInfo extends GenericTransportInfo {
if (this == ACTIVE) {
return PASSIVE;
}
throw new IllegalStateException(this.name()+" can not be flipped");
throw new IllegalStateException(this.name() + " can not be flipped");
}
}
}