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-rw-r--r--src/main/java/eu/siacs/conversations/generator/AbstractGenerator.java74
-rw-r--r--src/main/java/eu/siacs/conversations/generator/IqGenerator.java302
-rw-r--r--src/main/java/eu/siacs/conversations/generator/MessageGenerator.java216
-rw-r--r--src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java62
4 files changed, 654 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/generator/AbstractGenerator.java b/src/main/java/eu/siacs/conversations/generator/AbstractGenerator.java
new file mode 100644
index 00000000..649f767d
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/generator/AbstractGenerator.java
@@ -0,0 +1,74 @@
+package eu.siacs.conversations.generator;
+
+import android.util.Base64;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.TimeZone;
+
+import de.thedevstack.conversationsplus.ConversationsPlusApplication;
+import de.tzur.conversations.Settings;
+import eu.siacs.conversations.crypto.axolotl.AxolotlService;
+
+public abstract class AbstractGenerator {
+ private final String[] FEATURES = {
+ "urn:xmpp:jingle:1",
+ "urn:xmpp:jingle:apps:file-transfer:3",
+ "urn:xmpp:jingle:transports:s5b:1",
+ "urn:xmpp:jingle:transports:ibb:1",
+ "http://jabber.org/protocol/muc",
+ "jabber:x:conference",
+ "http://jabber.org/protocol/caps",
+ "http://jabber.org/protocol/disco#info",
+ "urn:xmpp:avatar:metadata+notify",
+ "http://jabber.org/protocol/nick+notify",
+ "urn:xmpp:ping",
+ "jabber:iq:version",
+ "http://jabber.org/protocol/chatstates",
+ AxolotlService.PEP_DEVICE_LIST+"+notify"};
+ private final String[] MESSAGE_CONFIRMATION_FEATURES = {
+ "urn:xmpp:chat-markers:0",
+ "urn:xmpp:receipts"
+ };
+ protected final String IDENTITY_TYPE = "phone";
+
+ private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US);
+
+ public String getCapHash() {
+ StringBuilder s = new StringBuilder();
+ s.append("client/" + IDENTITY_TYPE + "//" + ConversationsPlusApplication.getNameAndVersion() + "<");
+ MessageDigest md;
+ try {
+ md = MessageDigest.getInstance("SHA-1");
+ } catch (NoSuchAlgorithmException e) {
+ return null;
+ }
+
+ for (String feature : getFeatures()) {
+ s.append(feature + "<");
+ }
+ byte[] sha1 = md.digest(s.toString().getBytes());
+ return new String(Base64.encode(sha1, Base64.DEFAULT));
+ }
+
+ public static String getTimestamp(long time) {
+ DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+ return DATE_FORMAT.format(time);
+ }
+
+ public List<String> getFeatures() {
+ ArrayList<String> features = new ArrayList<>();
+ features.addAll(Arrays.asList(FEATURES));
+ if (Settings.CONFIRM_MESSAGE_RECEIVED) {
+ features.addAll(Arrays.asList(MESSAGE_CONFIRMATION_FEATURES));
+ }
+ Collections.sort(features);
+ return features;
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/generator/IqGenerator.java b/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
new file mode 100644
index 00000000..eff9d9c0
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
@@ -0,0 +1,302 @@
+package eu.siacs.conversations.generator;
+
+
+import android.util.Base64;
+import android.util.Log;
+
+import org.whispersystems.libaxolotl.IdentityKey;
+import org.whispersystems.libaxolotl.ecc.ECPublicKey;
+import org.whispersystems.libaxolotl.state.PreKeyRecord;
+import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
+
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import de.thedevstack.conversationsplus.ConversationsPlusApplication;
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.crypto.axolotl.AxolotlService;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.DownloadableFile;
+import eu.siacs.conversations.services.MessageArchiveService;
+import eu.siacs.conversations.utils.Xmlns;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.forms.Data;
+import eu.siacs.conversations.xmpp.jid.Jid;
+import eu.siacs.conversations.xmpp.pep.Avatar;
+import eu.siacs.conversations.xmpp.stanzas.IqPacket;
+
+public class IqGenerator extends AbstractGenerator {
+
+ public IqPacket discoResponse(final IqPacket request) {
+ final IqPacket packet = new IqPacket(IqPacket.TYPE.RESULT);
+ packet.setId(request.getId());
+ packet.setTo(request.getFrom());
+ final Element query = packet.addChild("query",
+ "http://jabber.org/protocol/disco#info");
+ query.setAttribute("node", request.query().getAttribute("node"));
+ final Element identity = query.addChild("identity");
+ identity.setAttribute("category", "client");
+ identity.setAttribute("type", IDENTITY_TYPE);
+ identity.setAttribute("name", ConversationsPlusApplication.getNameAndVersion());
+ for (final String feature : getFeatures()) {
+ query.addChild("feature").setAttribute("var", feature);
+ }
+ return packet;
+ }
+
+ public IqPacket versionResponse(final IqPacket request) {
+ final IqPacket packet = request.generateResponse(IqPacket.TYPE.RESULT);
+ Element query = packet.query("jabber:iq:version");
+ query.addChild("name").setContent(ConversationsPlusApplication.getName());
+ query.addChild("version").setContent(ConversationsPlusApplication.getVersion());
+ return packet;
+ }
+
+ protected IqPacket publish(final String node, final Element item) {
+ final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ final Element pubsub = packet.addChild("pubsub",
+ "http://jabber.org/protocol/pubsub");
+ final Element publish = pubsub.addChild("publish");
+ publish.setAttribute("node", node);
+ publish.addChild(item);
+ return packet;
+ }
+
+ protected IqPacket retrieve(String node, Element item) {
+ final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
+ final Element pubsub = packet.addChild("pubsub",
+ "http://jabber.org/protocol/pubsub");
+ final Element items = pubsub.addChild("items");
+ items.setAttribute("node", node);
+ if (item != null) {
+ items.addChild(item);
+ }
+ return packet;
+ }
+
+ public IqPacket publishNick(String nick) {
+ final Element item = new Element("item");
+ item.addChild("nick","http://jabber.org/protocol/nick").setContent(nick);
+ return publish("http://jabber.org/protocol/nick", item);
+ }
+
+ public static IqPacket retrieveVcardAvatar(final Avatar avatar) {
+ final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
+ packet.setTo(avatar.owner);
+ packet.addChild("vCard", "vcard-temp");
+ return packet;
+ }
+
+ public IqPacket retrieveDeviceIds(final Jid to) {
+ final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
+ if(to != null) {
+ packet.setTo(to);
+ }
+ return packet;
+ }
+
+ public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
+ final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES+":"+deviceid, null);
+ packet.setTo(to);
+ return packet;
+ }
+
+ public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
+ final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION+":"+deviceid, null);
+ packet.setTo(to);
+ return packet;
+ }
+
+ public IqPacket publishDeviceIds(final Set<Integer> ids) {
+ final Element item = new Element("item");
+ final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
+ for(Integer id:ids) {
+ final Element device = new Element("device");
+ device.setAttribute("id", id);
+ list.addChild(device);
+ }
+ return publish(AxolotlService.PEP_DEVICE_LIST, item);
+ }
+
+ public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
+ final Set<PreKeyRecord> preKeyRecords, final int deviceId) {
+ final Element item = new Element("item");
+ final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
+ final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
+ signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
+ ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
+ signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(),Base64.DEFAULT));
+ final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
+ signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(),Base64.DEFAULT));
+ final Element identityKeyElement = bundle.addChild("identityKey");
+ identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
+
+ final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
+ for(PreKeyRecord preKeyRecord:preKeyRecords) {
+ final Element prekey = prekeys.addChild("preKeyPublic");
+ prekey.setAttribute("preKeyId", preKeyRecord.getId());
+ prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.DEFAULT));
+ }
+
+ return publish(AxolotlService.PEP_BUNDLES+":"+deviceId, item);
+ }
+
+ public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
+ final Element item = new Element("item");
+ final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
+ final Element chain = verification.addChild("chain");
+ for(int i = 0; i < certificates.length; ++i) {
+ try {
+ Element certificate = chain.addChild("certificate");
+ certificate.setContent(Base64.encodeToString(certificates[i].getEncoded(), Base64.DEFAULT));
+ certificate.setAttribute("index",i);
+ } catch (CertificateEncodingException e) {
+ Log.d(Config.LOGTAG, "could not encode certificate");
+ }
+ }
+ verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.DEFAULT));
+ return publish(AxolotlService.PEP_VERIFICATION+":"+deviceId, item);
+ }
+
+ public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
+ final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ final Element query = packet.query("urn:xmpp:mam:0");
+ query.setAttribute("queryid", mam.getQueryId());
+ final Data data = new Data();
+ data.setFormType("urn:xmpp:mam:0");
+ if (mam.muc()) {
+ packet.setTo(mam.getWith());
+ } else if (mam.getWith()!=null) {
+ data.put("with", mam.getWith().toString());
+ }
+ data.put("start", getTimestamp(mam.getStart()));
+ data.put("end", getTimestamp(mam.getEnd()));
+ data.submit();
+ query.addChild(data);
+ if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
+ query.addChild("set", "http://jabber.org/protocol/rsm").addChild("before").setContent(mam.getReference());
+ } else if (mam.getReference() != null) {
+ query.addChild("set", "http://jabber.org/protocol/rsm").addChild("after").setContent(mam.getReference());
+ }
+ return packet;
+ }
+ public IqPacket generateGetBlockList() {
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
+ iq.addChild("blocklist", Xmlns.BLOCKING);
+
+ return iq;
+ }
+
+ public IqPacket generateSetBlockRequest(final Jid jid) {
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
+ final Element block = iq.addChild("block", Xmlns.BLOCKING);
+ block.addChild("item").setAttribute("jid", jid.toBareJid().toString());
+ return iq;
+ }
+
+ public IqPacket generateSetUnblockRequest(final Jid jid) {
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
+ final Element block = iq.addChild("unblock", Xmlns.BLOCKING);
+ block.addChild("item").setAttribute("jid", jid.toBareJid().toString());
+ return iq;
+ }
+
+ public IqPacket generateSetPassword(final Account account, final String newPassword) {
+ final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ packet.setTo(account.getServer());
+ final Element query = packet.addChild("query", Xmlns.REGISTER);
+ final Jid jid = account.getJid();
+ query.addChild("username").setContent(jid.getLocalpart());
+ query.addChild("password").setContent(newPassword);
+ return packet;
+ }
+
+ public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
+ List<Jid> jids = new ArrayList<>();
+ jids.add(jid);
+ return changeAffiliation(conference,jids,affiliation);
+ }
+
+ public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
+ IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ packet.setTo(conference.getJid().toBareJid());
+ packet.setFrom(conference.getAccount().getJid());
+ Element query = packet.query("http://jabber.org/protocol/muc#admin");
+ for(Jid jid : jids) {
+ Element item = query.addChild("item");
+ item.setAttribute("jid", jid.toString());
+ item.setAttribute("affiliation", affiliation);
+ }
+ return packet;
+ }
+
+ public IqPacket changeRole(Conversation conference, String nick, String role) {
+ IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ packet.setTo(conference.getJid().toBareJid());
+ packet.setFrom(conference.getAccount().getJid());
+ Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
+ item.setAttribute("nick", nick);
+ item.setAttribute("role", role);
+ return packet;
+ }
+
+ public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
+ IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
+ packet.setTo(host);
+ Element request = packet.addChild("request", Xmlns.HTTP_UPLOAD);
+ request.addChild("filename").setContent(file.getName());
+ request.addChild("size").setContent(String.valueOf(file.getExpectedSize()));
+ if (mime != null) {
+ request.addChild("content-type").setContent(mime);
+ }
+ return packet;
+ }
+
+ public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
+ final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
+
+ register.setTo(account.getServer());
+ register.setId(id);
+ register.query("jabber:iq:register").addChild(data);
+
+ return register;
+ }
+
+ public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
+ IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ packet.setTo(appServer);
+ Element command = packet.addChild("command", "http://jabber.org/protocol/commands");
+ command.setAttribute("node","register-push-gcm");
+ command.setAttribute("action","execute");
+ Data data = new Data();
+ data.put("token", token);
+ data.put("device-id", deviceId);
+ data.submit();
+ command.addChild(data);
+ return packet;
+ }
+
+ public IqPacket enablePush(Jid jid, String node, String secret) {
+ IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+ Element enable = packet.addChild("enable","urn:xmpp:push:0");
+ enable.setAttribute("jid",jid.toString());
+ enable.setAttribute("node", node);
+ Data data = new Data();
+ data.setFormType("http://jabber.org/protocol/pubsub#publish-options");
+ data.put("secret",secret);
+ data.submit();
+ enable.addChild(data);
+ return packet;
+ }
+
+ public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
+ IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
+ packet.setTo(conversation.getJid().toBareJid());
+ packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation",affiliation);
+ return packet;
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/generator/MessageGenerator.java b/src/main/java/eu/siacs/conversations/generator/MessageGenerator.java
new file mode 100644
index 00000000..2d7b66b5
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/generator/MessageGenerator.java
@@ -0,0 +1,216 @@
+package eu.siacs.conversations.generator;
+
+import net.java.otr4j.OtrException;
+import net.java.otr4j.session.Session;
+
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.Locale;
+import java.util.TimeZone;
+
+import de.thedevstack.conversationsplus.ConversationsPlusPreferences;
+import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.chatstate.ChatState;
+import eu.siacs.conversations.xmpp.jid.Jid;
+import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
+
+public class MessageGenerator extends AbstractGenerator {
+
+ private MessagePacket preparePacket(Message message) {
+ Conversation conversation = message.getConversation();
+ Account account = conversation.getAccount();
+ MessagePacket packet = new MessagePacket();
+ if (conversation.getMode() == Conversation.MODE_SINGLE) {
+ packet.setTo(message.getCounterpart());
+ packet.setType(MessagePacket.TYPE_CHAT);
+ packet.addChild("markable", "urn:xmpp:chat-markers:0");
+ if (ConversationsPlusPreferences.indicateReceived()) {
+ packet.addChild("request", "urn:xmpp:receipts");
+ }
+ } else if (message.getType() == Message.TYPE_PRIVATE) {
+ packet.setTo(message.getCounterpart());
+ packet.setType(MessagePacket.TYPE_CHAT);
+ if (ConversationsPlusPreferences.indicateReceived()) {
+ packet.addChild("request", "urn:xmpp:receipts");
+ }
+ } else {
+ packet.setTo(message.getCounterpart().toBareJid());
+ packet.setType(MessagePacket.TYPE_GROUPCHAT);
+ }
+ packet.setFrom(account.getJid());
+ packet.setId(message.getUuid());
+ if (message.edited()) {
+ packet.addChild("replace","urn:xmpp:message-correct:0").setAttribute("id",message.getEditedId());
+ }
+ return packet;
+ }
+
+ public void addDelay(MessagePacket packet, long timestamp) {
+ final SimpleDateFormat mDateFormat = new SimpleDateFormat(
+ "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
+ mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+ Element delay = packet.addChild("delay", "urn:xmpp:delay");
+ Date date = new Date(timestamp);
+ delay.setAttribute("stamp", mDateFormat.format(date));
+ }
+
+ public MessagePacket generateAxolotlChat(Message message, XmppAxolotlMessage axolotlMessage) {
+ MessagePacket packet = preparePacket(message);
+ if (axolotlMessage == null) {
+ return null;
+ }
+ packet.setAxolotlMessage(axolotlMessage.toElement());
+ packet.addChild("store", "urn:xmpp:hints");
+ return packet;
+ }
+
+ public static void addXhtmlImImage(MessagePacket packet, Message.FileParams params) {
+ Element html = packet.addChild("html", "http://jabber.org/protocol/xhtml-im");
+ Element body = html.addChild("body", "http://www.w3.org/1999/xhtml");
+ Element img = body.addChild("img");
+ img.setAttribute("src", params.url.toString());
+ img.setAttribute("height", params.height);
+ img.setAttribute("width", params.width);
+ }
+
+ public static void addMessageHints(MessagePacket packet) {
+ packet.addChild("private", "urn:xmpp:carbons:2");
+ packet.addChild("no-copy", "urn:xmpp:hints");
+ packet.addChild("no-permanent-store", "urn:xmpp:hints");
+ packet.addChild("no-permanent-storage", "urn:xmpp:hints"); //do not copy this. this is wrong. it is *store*
+ }
+
+ public MessagePacket generateOtrChat(Message message) {
+ Session otrSession = message.getConversation().getOtrSession();
+ if (otrSession == null) {
+ return null;
+ }
+ MessagePacket packet = preparePacket(message);
+ addMessageHints(packet);
+ try {
+ String content;
+ if (message.hasFileOnRemoteHost()) {
+ content = message.getFileParams().url.toString();
+ } else {
+ content = message.getBody();
+ }
+ packet.setBody(otrSession.transformSending(content)[0]);
+ return packet;
+ } catch (OtrException e) {
+ return null;
+ }
+ }
+
+ public MessagePacket generateChat(Message message) {
+ MessagePacket packet = preparePacket(message);
+ String content;
+ if (message.hasFileOnRemoteHost()) {
+ Message.FileParams fileParams = message.getFileParams();
+ content = fileParams.url.toString();
+ packet.addChild("x","jabber:x:oob").addChild("url").setContent(content);
+ if (fileParams.width > 0 && fileParams.height > 0) {
+ addXhtmlImImage(packet,fileParams);
+ }
+ } else {
+ content = message.getBody();
+ }
+ packet.setBody(content);
+ return packet;
+ }
+
+ public MessagePacket generatePgpChat(Message message) {
+ MessagePacket packet = preparePacket(message);
+ packet.setBody("This is an XEP-0027 encrypted message");
+ if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
+ packet.addChild("x", "jabber:x:encrypted").setContent(message.getEncryptedBody());
+ } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
+ packet.addChild("x", "jabber:x:encrypted").setContent(message.getBody());
+ }
+ return packet;
+ }
+
+ public MessagePacket generateChatState(Conversation conversation) {
+ final Account account = conversation.getAccount();
+ MessagePacket packet = new MessagePacket();
+ packet.setType(MessagePacket.TYPE_CHAT);
+ packet.setTo(conversation.getJid().toBareJid());
+ packet.setFrom(account.getJid());
+ packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
+ packet.addChild("no-store", "urn:xmpp:hints");
+ packet.addChild("no-storage", "urn:xmpp:hints"); //wrong! don't copy this. Its *store*
+ return packet;
+ }
+
+ public MessagePacket confirm(final Account account, final Jid to, final String id) {
+ MessagePacket packet = new MessagePacket();
+ packet.setType(MessagePacket.TYPE_CHAT);
+ packet.setTo(to);
+ packet.setFrom(account.getJid());
+ Element received = packet.addChild("displayed", "urn:xmpp:chat-markers:0");
+ received.setAttribute("id", id);
+ return packet;
+ }
+
+ public MessagePacket conferenceSubject(Conversation conversation,String subject) {
+ MessagePacket packet = new MessagePacket();
+ packet.setType(MessagePacket.TYPE_GROUPCHAT);
+ packet.setTo(conversation.getJid().toBareJid());
+ Element subjectChild = new Element("subject");
+ subjectChild.setContent(subject);
+ packet.addChild(subjectChild);
+ packet.setFrom(conversation.getAccount().getJid().toBareJid());
+ return packet;
+ }
+
+ public MessagePacket directInvite(final Conversation conversation, final Jid contact) {
+ MessagePacket packet = new MessagePacket();
+ packet.setType(MessagePacket.TYPE_NORMAL);
+ packet.setTo(contact);
+ packet.setFrom(conversation.getAccount().getJid());
+ Element x = packet.addChild("x", "jabber:x:conference");
+ x.setAttribute("jid", conversation.getJid().toBareJid().toString());
+ return packet;
+ }
+
+ public MessagePacket invite(Conversation conversation, Jid contact) {
+ MessagePacket packet = new MessagePacket();
+ packet.setTo(conversation.getJid().toBareJid());
+ packet.setFrom(conversation.getAccount().getJid());
+ Element x = new Element("x");
+ x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
+ Element invite = new Element("invite");
+ invite.setAttribute("to", contact.toBareJid().toString());
+ x.addChild(invite);
+ packet.addChild(x);
+ return packet;
+ }
+
+ public MessagePacket received(Account account, MessagePacket originalMessage, ArrayList<String> namespaces, int type) {
+ MessagePacket receivedPacket = new MessagePacket();
+ receivedPacket.setType(type);
+ receivedPacket.setTo(originalMessage.getFrom());
+ receivedPacket.setFrom(account.getJid());
+ for(String namespace : namespaces) {
+ receivedPacket.addChild("received", namespace).setAttribute("id", originalMessage.getId());
+ }
+ return receivedPacket;
+ }
+
+ public MessagePacket generateOtrError(Jid to, String id, String errorText) {
+ MessagePacket packet = new MessagePacket();
+ packet.setType(MessagePacket.TYPE_ERROR);
+ packet.setAttribute("id",id);
+ packet.setTo(to);
+ Element error = packet.addChild("error");
+ error.setAttribute("code","406");
+ error.setAttribute("type","modify");
+ error.addChild("not-acceptable","urn:ietf:params:xml:ns:xmpp-stanzas");
+ error.addChild("text").setContent("?OTR Error:" + errorText);
+ return packet;
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java b/src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java
new file mode 100644
index 00000000..9ac7d318
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java
@@ -0,0 +1,62 @@
+package eu.siacs.conversations.generator;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Presence;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
+
+public class PresenceGenerator extends AbstractGenerator {
+
+ private PresencePacket subscription(String type, Contact contact) {
+ PresencePacket packet = new PresencePacket();
+ packet.setAttribute("type", type);
+ packet.setTo(contact.getJid());
+ packet.setFrom(contact.getAccount().getJid().toBareJid());
+ return packet;
+ }
+
+ public PresencePacket requestPresenceUpdatesFrom(Contact contact) {
+ return subscription("subscribe", contact);
+ }
+
+ public PresencePacket stopPresenceUpdatesFrom(Contact contact) {
+ return subscription("unsubscribe", contact);
+ }
+
+ public PresencePacket stopPresenceUpdatesTo(Contact contact) {
+ return subscription("unsubscribed", contact);
+ }
+
+ public PresencePacket sendPresenceUpdatesTo(Contact contact) {
+ return subscription("subscribed", contact);
+ }
+
+ public PresencePacket selfPresence(Account account, Presence.Status status) {
+ PresencePacket packet = new PresencePacket();
+ if(status.toShowString() != null) {
+ packet.addChild("show").setContent(status.toShowString());
+ }
+ packet.setFrom(account.getJid());
+ String sig = account.getPgpSignature();
+ if (sig != null) {
+ packet.addChild("x", "jabber:x:signed").setContent(sig);
+ }
+ String capHash = getCapHash();
+ if (capHash != null) {
+ Element cap = packet.addChild("c",
+ "http://jabber.org/protocol/caps");
+ cap.setAttribute("hash", "sha-1");
+ cap.setAttribute("node", "http://conversations.im");
+ cap.setAttribute("ver", capHash);
+ }
+ return packet;
+ }
+
+ public PresencePacket sendOfflinePresence(Account account) {
+ PresencePacket packet = new PresencePacket();
+ packet.setFrom(account.getJid());
+ packet.setAttribute("type","unavailable");
+ return packet;
+ }
+}