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vanitasvitae 2017-07-14 21:19:03 +02:00
parent 520f77112d
commit 59e79ef668
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
5 changed files with 182 additions and 18 deletions
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117
smack-experimental/src/main/java/org/jivesoftware/smackx/jet/JetManager.java
View file

@ -16,26 +16,54 @@
*/
package org.jivesoftware.smackx.jet;
import java.io.File;
import java.io.FileInputStream;
import java.security.SecureRandom;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.WeakHashMap;
import java.util.logging.Logger;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.packet.Element;
import org.jivesoftware.smack.packet.ExtensionElement;
import org.jivesoftware.smackx.jingle.JingleManager;
import org.jivesoftware.smackx.jingle.JingleUtil;
import org.jivesoftware.smackx.jingle.element.Jingle;
import org.jivesoftware.smackx.jingle.element.JingleContent;
import org.jivesoftware.smackx.jingle.element.JingleContentDescriptionChildElement;
import org.jivesoftware.smackx.jingle_filetransfer.OutgoingJingleFileOffer;
import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransfer;
import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferChild;
import org.jivesoftware.smackx.jingle_filetransfer.handler.FileTransferHandler;
import org.jxmpp.jid.FullJid;
/**
* Manager for Jingle Encrypted Transfers (XEP-XXXX).
*/
public final class JetManager extends Manager {
private static final Logger LOGGER = Logger.getLogger(JetManager.class.getName());
public static final String NAMESPACE = "urn:xmpp:jingle:jet:0";
private static final WeakHashMap<XMPPConnection, JetManager> INSTANCES = new WeakHashMap<>();
private final JingleUtil jutil;
private static final Map<String, JingleEncryptionMethod> encryptionProviders = new HashMap<>();
private static final Map<String, JingleEncryptionMethod> encryptionMethods = new HashMap<>();
private JetManager(XMPPConnection connection) {
super(connection);
jutil = new JingleUtil(connection);
}
public static JetManager getInstanceFor(XMPPConnection connection) {
@ -49,16 +77,91 @@ public final class JetManager extends Manager {
return manager;
}
public FileTransferHandler sendEncryptedFile(FullJid recipient, File file, String encryptionMethodNamespace) throws Exception {
public void registerEncryptionProvider(String namespace, JingleEncryptionMethod provider) {
encryptionProviders.put(namespace, provider);
JingleEncryptionMethod encryptionMethod = getEncryptionMethod(encryptionMethodNamespace);
if (encryptionMethod == null) {
throw new IllegalStateException("No encryption method with namespace " + encryptionMethodNamespace + " registered.");
}
int keyLength = 256;
String keyType = "AES";
String cipherMode = "AES/GCM/NoPadding";
KeyGenerator keyGenerator = KeyGenerator.getInstance(keyType);
keyGenerator.init(keyLength);
byte[] key = keyGenerator.generateKey().getEncoded();
SecureRandom secureRandom = new SecureRandom();
byte[] iv = new byte[keyLength];
secureRandom.nextBytes(iv);
byte[] keyAndIv = new byte[2 * keyLength];
System.arraycopy(key, 0, keyAndIv, 0, keyLength);
System.arraycopy(iv, 0, keyAndIv, keyLength, keyLength);
SecretKey secretKey = new SecretKeySpec(key, keyType);
IvParameterSpec ivSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(cipherMode, "BC");
cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivSpec);
Exception ioe = null;
byte[] fileBuf = null;
FileInputStream fi = null;
CipherInputStream ci = null;
try {
fi = new FileInputStream(file);
ci = new CipherInputStream(fi, cipher);
fileBuf = new byte[(int) file.length()];
ci.read(fileBuf);
} catch (Exception e) {
ioe = e;
} finally {
if (ci != null) {
ci.close();
}
if (fi != null) {
fi.close();
}
}
if (ioe != null) {
throw ioe;
}
if (fileBuf == null) {
return null;
}
ExtensionElement encryptionExtension = encryptionMethod.encryptJingleTransfer(recipient, keyAndIv);
OutgoingJingleFileOffer offer = new OutgoingJingleFileOffer(connection(), recipient);
JingleFileTransferChild fileTransferChild = JingleFileTransferChild.getBuilder().setFile(file).build();
JingleFileTransfer fileTransfer = new JingleFileTransfer(Collections.<JingleContentDescriptionChildElement>singletonList(fileTransferChild));
Jingle initiate = jutil.createSessionInitiateFileOffer(recipient, JingleManager.randomId(), JingleContent.Creator.initiator,
JingleManager.randomId(), fileTransfer, offer.getTransportSession().createTransport(), Collections.<Element>singletonList(encryptionExtension));
return offer;
}
public void unregisterEncryptionProvider(String namespace) {
encryptionProviders.remove(namespace);
public void registerEncryptionMethod(String namespace, JingleEncryptionMethod method) {
encryptionMethods.put(namespace, method);
}
public JingleEncryptionMethod getEncryptionProvider(String namespace) {
return encryptionProviders.get(namespace);
public void unregisterEncryptionMethod(String namespace) {
encryptionMethods.remove(namespace);
}
public JingleEncryptionMethod getEncryptionMethod(String namespace) {
return encryptionMethods.get(namespace);
}
}

27
smack-experimental/src/main/java/org/jivesoftware/smackx/jet/OutgoingJetOffer.java Normal file
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@ -0,0 +1,27 @@
package org.jivesoftware.smackx.jet;
import java.io.File;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smackx.jingle_filetransfer.OutgoingJingleFileOffer;
import org.jxmpp.jid.FullJid;
/**
* Created by vanitas on 14.07.17.
*/
public class OutgoingJetOffer extends OutgoingJingleFileOffer {
public OutgoingJetOffer(XMPPConnection connection, FullJid responder, String sid) {
super(connection, responder, sid);
}
public OutgoingJetOffer(XMPPConnection connection, FullJid recipient) {
super(connection, recipient);
}
@Override
public void send(File file) {
}
}

2
smack-experimental/src/main/java/org/jivesoftware/smackx/jingle_filetransfer/OutgoingJingleFileOffer.java
View file

@ -122,7 +122,7 @@ public class OutgoingJingleFileOffer extends JingleFileTransferSession {
state = State.pending;
Jingle initiate = jutil.createSessionInitiateFileOffer(getResponder(), getSessionId(), creator, name, file, transportSession.createTransport());
Jingle initiate = jutil.createSessionInitiateFileOffer(getResponder(), getSessionId(), creator, name, file, transportSession.createTransport(), null);
this.contents.addAll(initiate.getContents());
connection.sendStanza(initiate);

24
smack-extensions/src/main/java/org/jivesoftware/smackx/jingle/JingleUtil.java
View file

@ -16,9 +16,12 @@
*/
package org.jivesoftware.smackx.jingle;
import java.util.List;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.packet.Element;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.XMPPError;
import org.jivesoftware.smackx.jingle.element.Jingle;
@ -60,7 +63,8 @@ public class JingleUtil {
String contentName,
JingleContent.Senders contentSenders,
JingleContentDescription description,
JingleContentTransport transport) {
JingleContentTransport transport,
List<Element> additionalElements) {
Jingle.Builder jb = Jingle.getBuilder();
jb.setAction(JingleAction.session_initiate)
@ -72,7 +76,8 @@ public class JingleUtil {
.setName(contentName)
.setSenders(contentSenders)
.setDescription(description)
.setTransport(transport);
.setTransport(transport)
.addAdditionalElements(additionalElements);
Jingle jingle = jb.addJingleContent(cb.build()).build();
jingle.setFrom(connection.getUser());
@ -97,9 +102,10 @@ public class JingleUtil {
JingleContent.Creator contentCreator,
String contentName,
JingleContentDescription description,
JingleContentTransport transport) {
JingleContentTransport transport,
List<Element> additionalElements) {
return createSessionInitiate(recipient, sessionId, contentCreator, contentName,
JingleContent.Senders.initiator, description, transport);
JingleContent.Senders.initiator, description, transport, additionalElements);
}
public IQ sendSessionInitiateFileOffer(FullJid recipient,
@ -107,11 +113,12 @@ public class JingleUtil {
JingleContent.Creator contentCreator,
String contentName,
JingleContentDescription description,
JingleContentTransport transport)
JingleContentTransport transport,
List<Element> additionalElements)
throws SmackException.NotConnectedException, InterruptedException,
XMPPException.XMPPErrorException, SmackException.NoResponseException {
Jingle jingle = createSessionInitiateFileOffer(recipient, sessionId, contentCreator, contentName, description, transport);
Jingle jingle = createSessionInitiateFileOffer(recipient, sessionId, contentCreator, contentName, description, transport, additionalElements);
return connection.createStanzaCollectorAndSend(jingle).nextResultOrThrow();
}
@ -121,12 +128,13 @@ public class JingleUtil {
String contentName,
JingleContent.Senders contentSenders,
JingleContentDescription description,
JingleContentTransport transport)
JingleContentTransport transport,
List<Element> additionalElements)
throws SmackException.NotConnectedException, InterruptedException,
XMPPException.XMPPErrorException, SmackException.NoResponseException {
Jingle jingle = createSessionInitiate(recipient, sessionId, contentCreator, contentName, contentSenders,
description, transport);
description, transport, additionalElements);
return connection.createStanzaCollectorAndSend(jingle).nextResult();
}

30
smack-extensions/src/main/java/org/jivesoftware/smackx/jingle/element/JingleContent.java
View file

@ -16,6 +16,10 @@
*/
package org.jivesoftware.smackx.jingle.element;
import java.util.ArrayList;
import java.util.List;
import org.jivesoftware.smack.packet.Element;
import org.jivesoftware.smack.packet.NamedElement;
import org.jivesoftware.smack.util.Objects;
import org.jivesoftware.smack.util.StringUtils;
@ -68,17 +72,22 @@ public final class JingleContent implements NamedElement {
private final JingleContentTransport transport;
private final List<Element> additionalElements = new ArrayList<>();
/**
* Creates a content description..
*/
private JingleContent(Creator creator, String disposition, String name, Senders senders,
JingleContentDescription description, JingleContentTransport transport) {
JingleContentDescription description, JingleContentTransport transport, List<Element> additionalElements) {
this.creator = Objects.requireNonNull(creator, "Jingle content creator must not be null");
this.disposition = disposition;
this.name = StringUtils.requireNotNullOrEmpty(name, "Jingle content name must not be null or empty");
this.senders = senders;
this.description = description;
this.transport = transport;
if (additionalElements != null) {
this.additionalElements.addAll(additionalElements);
}
}
public Creator getCreator() {
@ -115,6 +124,10 @@ public final class JingleContent implements NamedElement {
return transport;
}
public List<Element> getAdditionalElements() {
return additionalElements;
}
@Override
public String getElementName() {
return ELEMENT;
@ -132,6 +145,10 @@ public final class JingleContent implements NamedElement {
xml.optAppend(description);
xml.optElement(transport);
for (Element element : additionalElements) {
xml.element(element);
}
xml.closeElement(this);
return xml;
}
@ -153,6 +170,8 @@ public final class JingleContent implements NamedElement {
private JingleContentTransport transport;
private List<Element> additionalElements = new ArrayList<>();
private Builder() {
}
@ -189,8 +208,15 @@ public final class JingleContent implements NamedElement {
return this;
}
public Builder addAdditionalElements(List<Element> elements) {
if (elements != null) {
additionalElements.addAll(elements);
}
return this;
}
public JingleContent build() {
return new JingleContent(creator, disposition, name, senders, description, transport);
return new JingleContent(creator, disposition, name, senders, description, transport, additionalElements);
}
}
}