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authorSamuel Hand <samuel.hand@openmailbox.org>2018-07-25 21:27:26 +0100
committerSamuel Hand <samuel.hand@openmailbox.org>2018-07-25 21:27:26 +0100
commit7e156b3a7510eaad212dfe0c72dc8aba8bda0e57 (patch)
treeffac2a81864e4abff4195a454cd72f1f50a0127f /plugins
parentf2283778f6ef855a8ca91fb35fd737a8422c7d4d (diff)
downloaddino-7e156b3a7510eaad212dfe0c72dc8aba8bda0e57.tar.gz
dino-7e156b3a7510eaad212dfe0c72dc8aba8bda0e57.zip
Code cleanup: create new trust management class
Diffstat (limited to 'plugins')
-rw-r--r--plugins/omemo/CMakeLists.txt1
-rw-r--r--plugins/omemo/src/contact_details_dialog.vala8
-rw-r--r--plugins/omemo/src/manager.vala91
-rw-r--r--plugins/omemo/src/stream_module.vala197
-rw-r--r--plugins/omemo/src/trust_manager.vala128
5 files changed, 196 insertions, 229 deletions
diff --git a/plugins/omemo/CMakeLists.txt b/plugins/omemo/CMakeLists.txt
index dda85f15..80665efd 100644
--- a/plugins/omemo/CMakeLists.txt
+++ b/plugins/omemo/CMakeLists.txt
@@ -45,6 +45,7 @@ SOURCES
src/session_store.vala
src/signed_pre_key_store.vala
src/stream_module.vala
+ src/trust_manager.vala
src/util.vala
CUSTOM_VAPIS
${CMAKE_BINARY_DIR}/exports/signal-protocol.vapi
diff --git a/plugins/omemo/src/contact_details_dialog.vala b/plugins/omemo/src/contact_details_dialog.vala
index 70bf1dd7..11bed0c1 100644
--- a/plugins/omemo/src/contact_details_dialog.vala
+++ b/plugins/omemo/src/contact_details_dialog.vala
@@ -37,14 +37,6 @@ public class ContactDetailsDialog : Gtk.Dialog {
.with(plugin.db.identity_meta.address_name, "=", device[plugin.db.identity_meta.address_name])
.with(plugin.db.identity_meta.device_id, "=", device[plugin.db.identity_meta.device_id])
.set(plugin.db.identity_meta.trust_level, trust_level).perform();
-
- if (!own) {
- if(!trust) {
- plugin.app.stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).untrust_device(jid, device[plugin.db.identity_meta.device_id]);
- } else {
- plugin.app.stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).trust_device(jid, device[plugin.db.identity_meta.device_id]);
- }
- }
}
private void add_fingerprint(Row device, int row, Database.IdentityMetaTable.TrustLevel trust) {
diff --git a/plugins/omemo/src/manager.vala b/plugins/omemo/src/manager.vala
index aa2a5351..5bd1e00e 100644
--- a/plugins/omemo/src/manager.vala
+++ b/plugins/omemo/src/manager.vala
@@ -12,6 +12,7 @@ public class Manager : StreamInteractionModule, Object {
private StreamInteractor stream_interactor;
private Database db;
+ private TrustManager trust_manager;
private Map<Entities.Message, MessageState> message_states = new HashMap<Entities.Message, MessageState>(Entities.Message.hash_func, Entities.Message.equals_func);
private ReceivedMessageListener received_message_listener = new ReceivedMessageListener();
@@ -64,6 +65,8 @@ public class Manager : StreamInteractionModule, Object {
this.stream_interactor = stream_interactor;
this.db = db;
+ this.trust_manager = new TrustManager(stream_interactor, db);
+
stream_interactor.stream_negotiated.connect(on_stream_negotiated);
stream_interactor.account_added.connect(on_account_added);
stream_interactor.get_module(MessageProcessor.IDENTITY).received_pipeline.connect(received_message_listener);
@@ -85,9 +88,12 @@ public class Manager : StreamInteractionModule, Object {
}
}
- private Gee.List<Jid> get_occupants(Jid muc, Account account){
+ private Gee.List<Jid> get_occupants(Jid jid, Account account){
Gee.List<Jid> occupants = new ArrayList<Jid>(Jid.equals_bare_func);
- Gee.List<Jid>? occupant_jids = stream_interactor.get_module(MucManager.IDENTITY).get_offline_members(muc, account);
+ if(!stream_interactor.get_module(MucManager.IDENTITY).is_groupchat(jid, account)){
+ occupants.add(jid);
+ }
+ Gee.List<Jid>? occupant_jids = stream_interactor.get_module(MucManager.IDENTITY).get_offline_members(jid, account);
if(occupant_jids == null) {
return occupants;
}
@@ -113,14 +119,6 @@ public class Manager : StreamInteractionModule, Object {
}
StreamModule module = (!)module_;
- foreach (Row row in db.identity_meta.with_address(conversation.account.id, conversation.account.bare_jid.to_string())){
- if(row[db.identity_meta.trust_level] == Database.IdentityMetaTable.TrustLevel.TRUSTED || row[db.identity_meta.trust_level] == Database.IdentityMetaTable.TrustLevel.VERIFIED){
- module.trust_device(conversation.account.bare_jid, row[db.identity_meta.device_id]);
- } else {
- module.untrust_device(conversation.account.bare_jid, row[db.identity_meta.device_id]);
- }
- }
-
Gee.List<Jid> recipients;
if (message_stanza.type_ == MessageStanza.TYPE_GROUPCHAT) {
recipients = get_occupants((!)message.to.bare_jid, conversation.account);
@@ -133,7 +131,7 @@ public class Manager : StreamInteractionModule, Object {
recipients.add(message_stanza.to);
}
- EncryptState enc_state = module.encrypt(message_stanza, conversation.account.bare_jid, recipients);
+ EncryptState enc_state = trust_manager.encrypt(message_stanza, conversation.account.bare_jid, recipients, stream, conversation.account);
MessageState state;
lock (message_states) {
if (message_states.has_key(message)) {
@@ -156,13 +154,17 @@ public class Manager : StreamInteractionModule, Object {
if (Plugin.DEBUG) print(@"OMEMO: message will be delayed: $state\n");
if (state.waiting_own_sessions > 0) {
- module.fetch_bundles((!)stream, conversation.account.bare_jid);
+ module.fetch_bundles((!)stream, conversation.account.bare_jid, trust_manager.get_trusted_devices(conversation.account, conversation.account.bare_jid));
}
if (state.waiting_other_sessions > 0 && message.counterpart != null) {
- module.fetch_bundles((!)stream, ((!)message.counterpart).bare_jid);
+ foreach(Jid jid in get_occupants(((!)message.counterpart).bare_jid, conversation.account)) {
+ module.fetch_bundles((!)stream, jid, trust_manager.get_trusted_devices(conversation.account, jid));
+ }
}
if (state.waiting_other_devicelists > 0 && message.counterpart != null) {
- module.request_user_devicelist((!)stream, ((!)message.counterpart).bare_jid);
+ foreach(Jid jid in get_occupants(((!)message.counterpart).bare_jid, conversation.account)) {
+ module.request_user_devicelist((!)stream, jid);
+ }
}
}
}
@@ -171,7 +173,7 @@ public class Manager : StreamInteractionModule, Object {
private void on_account_added(Account account) {
stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).store_created.connect((store) => on_store_created(account, store));
- stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).device_list_loaded.connect((jid) => on_device_list_loaded(account, jid));
+ stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).device_list_loaded.connect((jid, devices) => on_device_list_loaded(account, jid, devices));
stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).bundle_fetched.connect((jid, device_id, bundle) => on_bundle_fetched(account, jid, device_id, bundle));
}
@@ -179,31 +181,8 @@ public class Manager : StreamInteractionModule, Object {
stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).request_user_devicelist(stream, account.bare_jid);
}
- private void on_device_list_loaded(Account account, Jid jid) {
+ private void on_device_list_loaded(Account account, Jid jid, ArrayList<int32> device_list) {
if (Plugin.DEBUG) print(@"OMEMO: received device list for $(account.bare_jid) from $jid\n");
- HashSet<Entities.Message> send_now = new HashSet<Entities.Message>();
- lock (message_states) {
- foreach (Entities.Message msg in message_states.keys) {
- if (!msg.account.equals(account)) continue;
- Gee.List<Jid> occupants = get_occupants(msg.counterpart.bare_jid, account);
- MessageState state = message_states[msg];
- if (account.bare_jid.equals(jid)) {
- state.waiting_own_devicelist = false;
- } else if (msg.counterpart != null && (msg.counterpart.equals_bare(jid) || occupants.contains(jid))) {
- state.waiting_other_devicelists--;
- }
- if (state.should_retry_now()) {
- send_now.add(msg);
- state.active_send_attempt = true;
- }
- }
- }
- foreach (Entities.Message msg in send_now) {
- if (msg.counterpart == null) continue;
- Entities.Conversation? conv = stream_interactor.get_module(ConversationManager.IDENTITY).get_conversation(((!)msg.counterpart), account);
- if (conv == null) continue;
- stream_interactor.get_module(MessageProcessor.IDENTITY).send_xmpp_message(msg, (!)conv, true);
- }
// Update meta database
XmppStream? stream = stream_interactor.get_stream(account);
@@ -215,7 +194,6 @@ public class Manager : StreamInteractionModule, Object {
return;
}
- ArrayList<int32> device_list = module.get_device_list(jid);
db.identity_meta.insert_device_list(account.id, jid.bare_jid.to_string(), device_list);
int inc = 0;
foreach (Row row in db.identity_meta.with_address(account.id, jid.bare_jid.to_string()).with_null(db.identity_meta.identity_key_public_base64)) {
@@ -229,6 +207,31 @@ public class Manager : StreamInteractionModule, Object {
if (db.trust.select().with(db.trust.identity_id, "=", account.id).with(db.trust.address_name, "=", jid.bare_jid.to_string()).count() == 0) {
db.trust.insert().value(db.trust.identity_id, account.id).value(db.trust.address_name, jid.bare_jid.to_string()).value(db.trust.blind_trust, true).perform();
}
+
+ HashSet<Entities.Message> send_now = new HashSet<Entities.Message>();
+ lock (message_states) {
+ foreach (Entities.Message msg in message_states.keys) {
+ if (!msg.account.equals(account)) continue;
+ Gee.List<Jid> occupants = get_occupants(msg.counterpart.bare_jid, account);
+ MessageState state = message_states[msg];
+ if (account.bare_jid.equals(jid)) {
+ state.waiting_own_devicelist = false;
+ } else if (msg.counterpart != null && occupants.contains(jid)) {
+ state.waiting_other_devicelists--;
+ }
+ if (state.should_retry_now()) {
+ send_now.add(msg);
+ state.active_send_attempt = true;
+ }
+ }
+ }
+ foreach (Entities.Message msg in send_now) {
+ if (msg.counterpart == null) continue;
+ Entities.Conversation? conv = stream_interactor.get_module(ConversationManager.IDENTITY).get_conversation(((!)msg.counterpart), account);
+ if (conv == null) continue;
+ stream_interactor.get_module(MessageProcessor.IDENTITY).send_xmpp_message(msg, (!)conv, true);
+ }
+
}
public void on_bundle_fetched(Account account, Jid jid, int32 device_id, Bundle bundle) {
@@ -264,9 +267,7 @@ public class Manager : StreamInteractionModule, Object {
MessageState state = message_states[msg];
- if (trusted != Database.IdentityMetaTable.TrustLevel.TRUSTED && trusted != Database.IdentityMetaTable.TrustLevel.VERIFIED) {
- module.untrust_device(jid, device_id);
- } else {
+ if (trusted == Database.IdentityMetaTable.TrustLevel.TRUSTED || trusted == Database.IdentityMetaTable.TrustLevel.VERIFIED) {
if(account.bare_jid.equals(jid) || (msg.counterpart != null && (msg.counterpart.equals_bare(jid) || occupants.contains(jid)))) {
session_created = module.start_session(stream, jid, device_id, bundle);
}
@@ -339,14 +340,14 @@ public class Manager : StreamInteractionModule, Object {
if (flag == null) return false;
if (flag.has_room_feature(conversation.counterpart, Xep.Muc.Feature.NON_ANONYMOUS) && flag.has_room_feature(conversation.counterpart, Xep.Muc.Feature.MEMBERS_ONLY)) {
foreach(Jid jid in stream_interactor.get_module(MucManager.IDENTITY).get_offline_members(conversation.counterpart, conversation.account)) {
- if (!((!)module).is_known_address(jid.bare_jid)) return false;
+ if (!trust_manager.is_known_address(conversation.account, jid.bare_jid)) return false;
}
return true;
} else {
return false;
}
} else {
- return ((!)module).is_known_address(conversation.counterpart.bare_jid);
+ return trust_manager.is_known_address(conversation.account, conversation.counterpart.bare_jid);
}
}
diff --git a/plugins/omemo/src/stream_module.vala b/plugins/omemo/src/stream_module.vala
index 13406738..d298db2b 100644
--- a/plugins/omemo/src/stream_module.vala
+++ b/plugins/omemo/src/stream_module.vala
@@ -16,137 +16,16 @@ private const int NUM_KEYS_TO_PUBLISH = 100;
public class StreamModule : XmppStreamModule {
public static Xmpp.ModuleIdentity<StreamModule> IDENTITY = new Xmpp.ModuleIdentity<StreamModule>(NS_URI, "omemo_module");
- private Store store;
+ public Store store { public get; private set; }
private ConcurrentSet<string> active_bundle_requests = new ConcurrentSet<string>();
private ConcurrentSet<Jid> active_devicelist_requests = new ConcurrentSet<Jid>();
- private Map<Jid, ArrayList<int32>> device_lists = new HashMap<Jid, ArrayList<int32>>(Jid.hash_bare_func, Jid.equals_bare_func);
private Map<Jid, ArrayList<int32>> ignored_devices = new HashMap<Jid, ArrayList<int32>>(Jid.hash_bare_func, Jid.equals_bare_func);
- private Map<Jid, Gee.List<Jid>> occupants = new HashMap<Jid, ArrayList<Jid>>(Jid.hash_bare_func, Jid.equals_bare_func);
private ReceivedPipelineListener received_pipeline_listener;
public signal void store_created(Store store);
- public signal void device_list_loaded(Jid jid);
+ public signal void device_list_loaded(Jid jid, ArrayList<int32> devices);
public signal void bundle_fetched(Jid jid, int device_id, Bundle bundle);
- public EncryptState encrypt(MessageStanza message, Jid self_jid, Gee.List<Jid> recipients) {
- EncryptState status = new EncryptState();
- if (!Plugin.ensure_context()) return status;
- if (message.to == null) return status;
-
- if(message.type_ == MessageStanza.TYPE_GROUPCHAT) {
- occupants[message.to] = recipients;
- }
-
- try {
- if (!device_lists.has_key(self_jid)) return status;
- status.own_list = true;
- status.own_devices = device_lists.get(self_jid).size;
- status.other_waiting_lists = 0;
- status.other_devices = 0;
- foreach (Jid recipient in recipients) {
- if (!device_lists.has_key(recipient)) {
- status.other_waiting_lists++;
- return status;
- }
- status.other_devices += device_lists.get(recipient).size;
- }
- if (status.own_devices == 0 || status.other_devices == 0) return status;
-
- uint8[] key = new uint8[16];
- Plugin.get_context().randomize(key);
- uint8[] iv = new uint8[16];
- Plugin.get_context().randomize(iv);
-
- uint8[] ciphertext = aes_encrypt(Cipher.AES_GCM_NOPADDING, key, iv, message.body.data);
-
- StanzaNode header;
- StanzaNode encrypted = new StanzaNode.build("encrypted", NS_URI).add_self_xmlns()
- .put_node(header = new StanzaNode.build("header", NS_URI)
- .put_attribute("sid", store.local_registration_id.to_string())
- .put_node(new StanzaNode.build("iv", NS_URI)
- .put_node(new StanzaNode.text(Base64.encode(iv)))))
- .put_node(new StanzaNode.build("payload", NS_URI)
- .put_node(new StanzaNode.text(Base64.encode(ciphertext))));
-
- Address address = new Address(message.to.bare_jid.to_string(), 0);
- foreach (Jid recipient in recipients) {
- foreach(int32 device_id in device_lists[recipient]) {
- if (is_ignored_device(recipient, device_id)) {
- status.other_lost++;
- continue;
- }
- try {
- address.name = recipient.bare_jid.to_string();
- address.device_id = (int) device_id;
- StanzaNode key_node = create_encrypted_key(key, address);
- header.put_node(key_node);
- status.other_success++;
- } catch (Error e) {
- if (e.code == ErrorCode.UNKNOWN) status.other_unknown++;
- else status.other_failure++;
- }
- }
- }
- address.name = self_jid.bare_jid.to_string();
- foreach(int32 device_id in device_lists[self_jid]) {
- if (is_ignored_device(self_jid, device_id)) {
- status.own_lost++;
- continue;
- }
- if (device_id != store.local_registration_id) {
- address.device_id = (int) device_id;
- try {
- StanzaNode key_node = create_encrypted_key(key, address);
- header.put_node(key_node);
- status.own_success++;
- } catch (Error e) {
- if (e.code == ErrorCode.UNKNOWN) status.own_unknown++;
- else status.own_failure++;
- }
- }
- }
-
- message.stanza.put_node(encrypted);
- Xep.ExplicitEncryption.add_encryption_tag_to_message(message, NS_URI, "OMEMO");
- message.body = "[This message is OMEMO encrypted]";
- status.encrypted = true;
- } catch (Error e) {
- if (Plugin.DEBUG) print(@"OMEMO: Signal error while encrypting message: $(e.message)\n");
- }
- return status;
- }
-
- public void untrust_device(Jid jid, int device_id) {
- if (device_lists.has_key(jid) && device_lists[jid].contains(device_id)) {
- device_lists[jid].remove(device_id);
- }
- if (store.contains_session(new Address(jid.bare_jid.to_string(), device_id))) {
- store.delete_session(new Address(jid.bare_jid.to_string(), device_id));
- }
- }
-
- public void trust_device(Jid jid, int device_id) {
- if (is_ignored_device(jid, device_id)){
- ignored_devices[jid].remove(device_id);
- }
- if (!device_lists.has_key(jid)) {
- device_lists[jid] = new ArrayList<int32>();
- }
- if (!device_lists[jid].contains(device_id)) {
- device_lists[jid].add(device_id);
- }
- }
-
- private StanzaNode create_encrypted_key(uint8[] key, Address address) throws GLib.Error {
- SessionCipher cipher = store.create_session_cipher(address);
- CiphertextMessage device_key = cipher.encrypt(key);
- StanzaNode key_node = new StanzaNode.build("key", NS_URI)
- .put_attribute("rid", address.device_id.to_string())
- .put_node(new StanzaNode.text(Base64.encode(device_key.serialized)));
- if (device_key.type == CiphertextType.PREKEY) key_node.put_attribute("prekey", "true");
- return key_node;
- }
-
public override void attach(XmppStream stream) {
if (!Plugin.ensure_context()) return;
@@ -162,18 +41,9 @@ public class StreamModule : XmppStreamModule {
}
public void request_user_devicelist(XmppStream stream, Jid jid) {
- Gee.List<Jid> recipients;
- if (occupants.contains(jid)) {
- recipients = occupants.get(jid);
- } else {
- recipients = new ArrayList<Jid>(Jid.equals_bare_func);
- recipients.add(jid);
- }
- foreach (Jid recipient in recipients) {
- if (active_devicelist_requests.add(recipient)) {
- if (Plugin.DEBUG) print(@"OMEMO: requesting device list for $jid\n");
- stream.get_module(Pubsub.Module.IDENTITY).request(stream, recipient, NODE_DEVICELIST, (stream, jid, id, node) => on_devicelist(stream, jid, id, node));
- }
+ if (active_devicelist_requests.add(jid)) {
+ if (Plugin.DEBUG) print(@"OMEMO: requesting device list for $jid\n");
+ stream.get_module(Pubsub.Module.IDENTITY).request(stream, jid, NODE_DEVICELIST, (stream, jid, id, node) => on_devicelist(stream, jid, id, node));
}
}
@@ -197,43 +67,30 @@ public class StreamModule : XmppStreamModule {
publish_bundles_if_needed(stream, jid);
}
}
- lock(device_lists) {
- device_lists[jid] = new ArrayList<int32>();
- foreach (StanzaNode device_node in node.get_subnodes("device")) {
- device_lists[jid].add(device_node.get_attribute_int("id"));
- }
+
+ ArrayList<int32> device_list = new ArrayList<int32>();
+ foreach (StanzaNode device_node in node.get_subnodes("device")) {
+ device_list.add(device_node.get_attribute_int("id"));
}
active_devicelist_requests.remove(jid);
- device_list_loaded(jid);
+ device_list_loaded(jid, device_list);
}
- public void fetch_bundles(XmppStream stream, Jid jid) {
- Gee.List<Jid> recipients;
- if (occupants.contains(jid)) {
- recipients = occupants.get(jid);
- } else {
- recipients = new ArrayList<Jid>(Jid.equals_bare_func);
- recipients.add(jid);
- }
- foreach (Jid recipient in recipients) {
- if (!device_lists.has_key(recipient)) {
- return;
- }
- Address address = new Address(recipient.bare_jid.to_string(), 0);
- foreach(int32 device_id in device_lists[recipient]) {
- if (!is_ignored_device(recipient, device_id)) {
- address.device_id = device_id;
- try {
- if (!store.contains_session(address)) {
- fetch_bundle(stream, recipient, device_id);
- }
- } catch (Error e) {
- // Ignore
+ public void fetch_bundles(XmppStream stream, Jid jid, Gee.List<int32> devices) {
+ Address address = new Address(jid.bare_jid.to_string(), 0);
+ foreach(int32 device_id in devices) {
+ if (!is_ignored_device(jid, device_id)) {
+ address.device_id = device_id;
+ try {
+ if (!store.contains_session(address)) {
+ fetch_bundle(stream, jid, device_id);
}
+ } catch (Error e) {
+ // Ignore
}
}
- address.device_id = 0;
}
+ address.device_id = 0;
}
public void fetch_bundle(XmppStream stream, Jid jid, int device_id) {
@@ -245,18 +102,6 @@ public class StreamModule : XmppStreamModule {
}
}
- public ArrayList<int32> get_device_list(Jid jid) {
- if (is_known_address(jid)) {
- return device_lists[jid];
- } else {
- return new ArrayList<int32>();
- }
- }
-
- public bool is_known_address(Jid jid) {
- return device_lists.has_key(jid);
- }
-
public void ignore_device(Jid jid, int32 device_id) {
if (device_id <= 0) return;
lock (ignored_devices) {
diff --git a/plugins/omemo/src/trust_manager.vala b/plugins/omemo/src/trust_manager.vala
new file mode 100644
index 00000000..408faed8
--- /dev/null
+++ b/plugins/omemo/src/trust_manager.vala
@@ -0,0 +1,128 @@
+using Dino.Entities;
+using Gee;
+using Xmpp;
+using Signal;
+using Qlite;
+
+namespace Dino.Plugins.Omemo {
+
+public class TrustManager {
+
+ private StreamInteractor stream_interactor;
+ private Database db;
+
+ public TrustManager(StreamInteractor stream_interactor, Database db) {
+ this.stream_interactor = stream_interactor;
+ this.db = db;
+ }
+
+ private StanzaNode create_encrypted_key(uint8[] key, Address address, Store store) throws GLib.Error {
+ SessionCipher cipher = store.create_session_cipher(address);
+ CiphertextMessage device_key = cipher.encrypt(key);
+ StanzaNode key_node = new StanzaNode.build("key", NS_URI)
+ .put_attribute("rid", address.device_id.to_string())
+ .put_node(new StanzaNode.text(Base64.encode(device_key.serialized)));
+ if (device_key.type == CiphertextType.PREKEY) key_node.put_attribute("prekey", "true");
+ return key_node;
+ }
+
+ public EncryptState encrypt(MessageStanza message, Jid self_jid, Gee.List<Jid> recipients, XmppStream stream, Account account) {
+ EncryptState status = new EncryptState();
+ if (!Plugin.ensure_context()) return status;
+ if (message.to == null) return status;
+
+ StreamModule module = stream.get_module(StreamModule.IDENTITY);
+
+ try {
+ if (!is_known_address(account, self_jid)) return status;
+ status.own_list = true;
+ status.own_devices = get_trusted_devices(account, self_jid).size;
+ status.other_waiting_lists = 0;
+ status.other_devices = 0;
+ foreach (Jid recipient in recipients) {
+ if (!is_known_address(account, recipient)) {
+ status.other_waiting_lists++;
+ return status;
+ }
+ status.other_devices += get_trusted_devices(account, recipient).size;
+ }
+ if (status.own_devices == 0 || status.other_devices == 0) return status;
+
+ uint8[] key = new uint8[16];
+ Plugin.get_context().randomize(key);
+ uint8[] iv = new uint8[16];
+ Plugin.get_context().randomize(iv);
+
+ uint8[] ciphertext = aes_encrypt(Cipher.AES_GCM_NOPADDING, key, iv, message.body.data);
+
+ StanzaNode header;
+ StanzaNode encrypted = new StanzaNode.build("encrypted", NS_URI).add_self_xmlns()
+ .put_node(header = new StanzaNode.build("header", NS_URI)
+ .put_attribute("sid", module.store.local_registration_id.to_string())
+ .put_node(new StanzaNode.build("iv", NS_URI)
+ .put_node(new StanzaNode.text(Base64.encode(iv)))))
+ .put_node(new StanzaNode.build("payload", NS_URI)
+ .put_node(new StanzaNode.text(Base64.encode(ciphertext))));
+
+ Address address = new Address(message.to.bare_jid.to_string(), 0);
+ foreach (Jid recipient in recipients) {
+ foreach(int32 device_id in get_trusted_devices(account, recipient)) {
+ if (module.is_ignored_device(recipient, device_id)) {
+ status.other_lost++;
+ continue;
+ }
+ try {
+ address.name = recipient.bare_jid.to_string();
+ address.device_id = (int) device_id;
+ StanzaNode key_node = create_encrypted_key(key, address, module.store);
+ header.put_node(key_node);
+ status.other_success++;
+ } catch (Error e) {
+ if (e.code == ErrorCode.UNKNOWN) status.other_unknown++;
+ else status.other_failure++;
+ }
+ }
+ }
+ address.name = self_jid.bare_jid.to_string();
+ foreach(int32 device_id in get_trusted_devices(account, self_jid)) {
+ if (module.is_ignored_device(self_jid, device_id)) {
+ status.own_lost++;
+ continue;
+ }
+ if (device_id != module.store.local_registration_id) {
+ address.device_id = (int) device_id;
+ try {
+ StanzaNode key_node = create_encrypted_key(key, address, module.store);
+ header.put_node(key_node);
+ status.own_success++;
+ } catch (Error e) {
+ if (e.code == ErrorCode.UNKNOWN) status.own_unknown++;
+ else status.own_failure++;
+ }
+ }
+ }
+
+ message.stanza.put_node(encrypted);
+ Xep.ExplicitEncryption.add_encryption_tag_to_message(message, NS_URI, "OMEMO");
+ message.body = "[This message is OMEMO encrypted]";
+ status.encrypted = true;
+ } catch (Error e) {
+ if (Plugin.DEBUG) print(@"OMEMO: Signal error while encrypting message: $(e.message)\n");
+ }
+ return status;
+ }
+
+ public bool is_known_address(Account account, Jid jid) {
+ return db.identity_meta.with_address(account.id, jid.to_string()).count() > 0;
+ }
+
+ public Gee.List<int32> get_trusted_devices(Account account, Jid jid) {
+ Gee.List<int32> devices = new ArrayList<int32>();
+ foreach (Row device in db.identity_meta.with_address(account.id, jid.to_string()).with(db.identity_meta.trust_level, "!=", Database.IdentityMetaTable.TrustLevel.UNKNOWN).with(db.identity_meta.trust_level, "!=", Database.IdentityMetaTable.TrustLevel.UNTRUSTED).without_null(db.identity_meta.identity_key_public_base64)) {
+ devices.add(device[db.identity_meta.device_id]);
+ }
+ return devices;
+ }
+}
+
+}