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authorMarvin W <git@larma.de>2017-03-11 01:29:38 +0100
committerMarvin W <git@larma.de>2017-03-11 23:59:04 +0100
commitd5ea5172a754848c10d061a4a9dd777f63ba71c1 (patch)
treeaeb7694b93158e23714f481a5cdfb5c87b59b630 /plugins/omemo/src/manager.vala
parente27d63269d0b41fa8d5b5f0f2e4a9dc7de4b9ab9 (diff)
downloaddino-d5ea5172a754848c10d061a4a9dd777f63ba71c1.tar.gz
dino-d5ea5172a754848c10d061a4a9dd777f63ba71c1.zip
Add OMEMO via Plugin
Diffstat (limited to 'plugins/omemo/src/manager.vala')
-rw-r--r--plugins/omemo/src/manager.vala270
1 files changed, 270 insertions, 0 deletions
diff --git a/plugins/omemo/src/manager.vala b/plugins/omemo/src/manager.vala
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+using Dino.Entities;
+using Signal;
+using Qlite;
+using Xmpp;
+using Gee;
+
+namespace Dino.Omemo {
+
+public class Manager : StreamInteractionModule, Object {
+ public const string id = "omemo_manager";
+
+ private StreamInteractor stream_interactor;
+ private Database db;
+ private ArrayList<Entities.Message> to_send_after_devicelist = new ArrayList<Entities.Message>();
+ private ArrayList<Entities.Message> to_send_after_session = new ArrayList<Entities.Message>();
+
+ private Manager(StreamInteractor stream_interactor, Database db) {
+ this.stream_interactor = stream_interactor;
+ this.db = db;
+
+ stream_interactor.account_added.connect(on_account_added);
+ MessageManager.get_instance(stream_interactor).pre_message_received.connect(on_pre_message_received);
+ MessageManager.get_instance(stream_interactor).pre_message_send.connect(on_pre_message_send);
+ }
+
+ private void on_pre_message_received(Entities.Message message, Xmpp.Message.Stanza message_stanza, Conversation conversation) {
+ if (MessageFlag.get_flag(message_stanza) != null && MessageFlag.get_flag(message_stanza).decrypted) {
+ message.encryption = Encryption.OMEMO;
+ }
+ }
+
+ private void on_pre_message_send(Entities.Message message, Xmpp.Message.Stanza message_stanza, Conversation conversation) {
+ if (message.encryption == Encryption.OMEMO) {
+ Module module = Module.get_module(stream_interactor.get_stream(conversation.account));
+ EncryptStatus status = module.encrypt(message_stanza, conversation.account.bare_jid.to_string());
+ if (status.other_failure > 0 || (status.other_lost == status.other_devices && status.other_devices > 0)) {
+ message.marked = Entities.Message.Marked.WONTSEND;
+ } else if (status.other_unknown > 0 || status.own_devices == 0) {
+ message.marked = Entities.Message.Marked.UNSENT;
+ } else if (!status.encrypted) {
+ message.marked = Entities.Message.Marked.WONTSEND;
+ }
+
+ if (status.other_unknown > 0) {
+ bool cont = true;
+ lock(to_send_after_session) {
+ foreach(Entities.Message msg in to_send_after_session) {
+ if (msg.counterpart.bare_jid.to_string() == message.counterpart.bare_jid.to_string()) cont = false;
+ }
+ to_send_after_session.add(message);
+ }
+ if (cont) module.start_sessions_with(stream_interactor.get_stream(conversation.account), message.counterpart.bare_jid.to_string());
+ }
+ if (status.own_unknown > 0) {
+ module.start_sessions_with(stream_interactor.get_stream(conversation.account), conversation.account.bare_jid.to_string());
+ }
+ if (status.own_devices == 0) {
+ lock (to_send_after_session) {
+ to_send_after_devicelist.add(message);
+ }
+ }
+ }
+ }
+
+ private void on_account_added(Account account) {
+ stream_interactor.module_manager.get_module(account, Module.IDENTITY).store_created.connect((context, store) => on_store_created(account, context, store));
+ stream_interactor.module_manager.get_module(account, Module.IDENTITY).device_list_loaded.connect(() => on_device_list_loaded(account));
+ stream_interactor.module_manager.get_module(account, Module.IDENTITY).session_started.connect((jid, device_id) => on_session_started(account, jid));
+ }
+
+ private void on_session_started(Account account, string jid) {
+ lock(to_send_after_session) {
+ Iterator<Entities.Message> iter = to_send_after_session.iterator();
+ while (iter.next()) {
+ Entities.Message msg = iter.get();
+ if (msg.account.bare_jid.to_string() == account.bare_jid.to_string() && msg.counterpart.bare_jid.to_string() == jid) {
+ Entities.Conversation conv = ConversationManager.get_instance(stream_interactor).get_conversation(msg.counterpart, account);
+ MessageManager.get_instance(stream_interactor).send_xmpp_message(msg, conv, true);
+ iter.remove();
+ }
+ }
+ }
+ }
+
+ private void on_device_list_loaded(Account account) {
+ lock(to_send_after_devicelist) {
+ Iterator<Entities.Message> iter = to_send_after_devicelist.iterator();
+ while (iter.next()) {
+ Entities.Message msg = iter.get();
+ if (msg.account.bare_jid.to_string() == account.bare_jid.to_string()) {
+ Entities.Conversation conv = ConversationManager.get_instance(stream_interactor).get_conversation(msg.counterpart, account);
+ MessageManager.get_instance(stream_interactor).send_xmpp_message(msg, conv, true);
+ iter.remove();
+ }
+ }
+ }
+ }
+
+ private void on_store_created(Account account, Context context, Store store) {
+ Qlite.Row? row = null;
+ try {
+ row = db.identity.row_with(db.identity.account_id, account.id);
+ } catch (Error e) {
+ // Ignore error
+ }
+ int identity_id = -1;
+
+ if (row == null) {
+ // OMEMO not yet initialized, starting with empty base
+ store.identity_key_store.local_registration_id = Random.int_range(1, int32.MAX);
+
+ Signal.ECKeyPair key_pair = context.generate_key_pair();
+ store.identity_key_store.identity_key_private = key_pair.private.serialize();
+ store.identity_key_store.identity_key_public = key_pair.public.serialize();
+
+ try {
+ identity_id = (int) db.identity.insert().or("REPLACE")
+ .value(db.identity.account_id, account.id)
+ .value(db.identity.device_id, (int) store.local_registration_id)
+ .value(db.identity.identity_key_private_base64, Base64.encode(store.identity_key_store.identity_key_private))
+ .value(db.identity.identity_key_public_base64, Base64.encode(store.identity_key_store.identity_key_public))
+ .perform();
+ } catch (Error e) {
+ // Ignore error
+ }
+ } else {
+ store.identity_key_store.local_registration_id = row[db.identity.device_id];
+ store.identity_key_store.identity_key_private = Base64.decode(row[db.identity.identity_key_private_base64]);
+ store.identity_key_store.identity_key_public = Base64.decode(row[db.identity.identity_key_public_base64]);
+ identity_id = row[db.identity.id];
+ }
+
+ if (identity_id >= 0) {
+ store.signed_pre_key_store = new BackedSignedPreKeyStore(db, identity_id);
+ store.pre_key_store = new BackedPreKeyStore(db, identity_id);
+ store.session_store = new BackedSessionStore(db, identity_id);
+ } else {
+ print(@"WARN: OMEMO store for $(account.bare_jid) is not persisted");
+ }
+ }
+
+ private class BackedSignedPreKeyStore : SimpleSignedPreKeyStore {
+ private Database db;
+ private int identity_id;
+
+ public BackedSignedPreKeyStore(Database db, int identity_id) {
+ this.db = db;
+ this.identity_id = identity_id;
+ init();
+ }
+
+ private void init() {
+ foreach (Row row in db.signed_pre_key.select().with(db.signed_pre_key.identity_id, "=", identity_id)) {
+ store_signed_pre_key(row[db.signed_pre_key.signed_pre_key_id], Base64.decode(row[db.signed_pre_key.record_base64]));
+ }
+
+ signed_pre_key_stored.connect(on_signed_pre_key_stored);
+ signed_pre_key_deleted.connect(on_signed_pre_key_deleted);
+ }
+
+ public void on_signed_pre_key_stored(SignedPreKeyStore.Key key) {
+ db.signed_pre_key.insert().or("REPLACE")
+ .value(db.signed_pre_key.identity_id, identity_id)
+ .value(db.signed_pre_key.signed_pre_key_id, (int) key.key_id)
+ .value(db.signed_pre_key.record_base64, Base64.encode(key.record))
+ .perform();
+ }
+
+ public void on_signed_pre_key_deleted(SignedPreKeyStore.Key key) {
+ db.signed_pre_key.delete()
+ .with(db.signed_pre_key.identity_id, "=", identity_id)
+ .with(db.signed_pre_key.signed_pre_key_id, "=", (int) key.key_id)
+ .perform();
+ }
+ }
+
+ private class BackedPreKeyStore : SimplePreKeyStore {
+ private Database db;
+ private int identity_id;
+
+ public BackedPreKeyStore(Database db, int identity_id) {
+ this.db = db;
+ this.identity_id = identity_id;
+ init();
+ }
+
+ private void init() {
+ foreach (Row row in db.pre_key.select().with(db.pre_key.identity_id, "=", identity_id)) {
+ store_pre_key(row[db.pre_key.pre_key_id], Base64.decode(row[db.pre_key.record_base64]));
+ }
+
+ pre_key_stored.connect(on_pre_key_stored);
+ pre_key_deleted.connect(on_pre_key_deleted);
+ }
+
+ public void on_pre_key_stored(PreKeyStore.Key key) {
+ db.pre_key.insert().or("REPLACE")
+ .value(db.pre_key.identity_id, identity_id)
+ .value(db.pre_key.pre_key_id, (int) key.key_id)
+ .value(db.pre_key.record_base64, Base64.encode(key.record))
+ .perform();
+ }
+
+ public void on_pre_key_deleted(PreKeyStore.Key key) {
+ db.pre_key.delete()
+ .with(db.pre_key.identity_id, "=", identity_id)
+ .with(db.pre_key.pre_key_id, "=", (int) key.key_id)
+ .perform();
+ }
+ }
+
+ private class BackedSessionStore : SimpleSessionStore {
+ private Database db;
+ private int identity_id;
+
+ public BackedSessionStore(Database db, int identity_id) {
+ this.db = db;
+ this.identity_id = identity_id;
+ init();
+ }
+
+ private void init() {
+ Address addr = new Address();
+ foreach (Row row in db.session.select().with(db.session.identity_id, "=", identity_id)) {
+ addr.name = row[db.session.address_name];
+ addr.device_id = row[db.session.device_id];
+ store_session(addr, Base64.decode(row[db.session.record_base64]));
+ }
+
+ session_stored.connect(on_session_stored);
+ session_removed.connect(on_session_deleted);
+ }
+
+ public void on_session_stored(SessionStore.Session session) {
+ db.session.insert().or("REPLACE")
+ .value(db.session.identity_id, identity_id)
+ .value(db.session.address_name, session.name)
+ .value(db.session.device_id, session.device_id)
+ .value(db.session.record_base64, Base64.encode(session.record))
+ .perform();
+ }
+
+ public void on_session_deleted(SessionStore.Session session) {
+ db.session.delete()
+ .with(db.session.identity_id, "=", identity_id)
+ .with(db.session.address_name, "=", session.name)
+ .with(db.session.device_id, "=", session.device_id)
+ .perform();
+ }
+ }
+
+ public bool con_encrypt(Entities.Conversation conversation) {
+ return true; // TODO
+ }
+
+ internal string get_id() {
+ return id;
+ }
+
+ public static void start(StreamInteractor stream_interactor, Database db) {
+ Manager m = new Manager(stream_interactor, db);
+ stream_interactor.add_module(m);
+ }
+
+ public static Manager? get_instance(StreamInteractor stream_interactor) {
+ return (Manager) stream_interactor.get_module(id);
+ }
+}
+
+} \ No newline at end of file