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Split OMEMO plug-in into files, various fixes

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This commit is contained in:
Marvin W 2017-03-12 02:28:23 +01:00
parent 7e1ecb34cb
commit a9ea0e9f87
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GPG key ID: 072E9235DB996F2A
22 changed files with 534 additions and 454 deletions
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1
.gitignore vendored
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@ -5,3 +5,4 @@ Makefile
*.iml
.idea
.sqlite3
gschemas.compiled

1
libdino/CMakeLists.txt
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@ -4,7 +4,6 @@ include(${VALA_USE_FILE})
set(LIBDINO_PACKAGES
gee-0.8
gio-2.0
glib-2.0
gtk+-3.0
gmodule-2.0

15
libdino/src/plugin/loader.vala
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@ -1,12 +1,5 @@
namespace Dino.Plugins {
public errordomain Error {
NOT_SUPPORTED,
UNEXPECTED_TYPE,
NO_REGISTRATION_FUNCTION,
FAILED
}
private class Info : Object {
public Module module;
public Type gtype;
@ -26,24 +19,24 @@ public class Loader : Object {
public RootInterface load(string name, Dino.Application app) throws Error {
if (Module.supported () == false) {
throw new Error.NOT_SUPPORTED ("Plugins are not supported");
throw new Error (-1, 0, "Plugins are not supported");
}
Module module = Module.open ("plugins/" + name, ModuleFlags.BIND_LAZY);
if (module == null) {
throw new Error.FAILED (Module.error ());
throw new Error (-1, 1, Module.error ());
}
void* function;
module.symbol ("register_plugin", out function);
if (function == null) {
throw new Error.NO_REGISTRATION_FUNCTION ("register_plugin () not found");
throw new Error (-1, 2, "register_plugin () not found");
}
RegisterPluginFunction register_plugin = (RegisterPluginFunction) function;
Type type = register_plugin (module);
if (type.is_a (typeof (RootInterface)) == false) {
throw new Error.UNEXPECTED_TYPE ("Unexpected type");
throw new Error (-1, 3, "Unexpected type");
}
Info info = new Plugins.Info (type, (owned) module);

2
main/src/main.vala
View file

@ -10,7 +10,7 @@ void main(string[] args) {
foreach(string plugin in new string[]{"omemo", "openpgp"}) {
try {
loader.load(plugin, app);
} catch (Plugins.Error e) {
} catch (Error e) {
print(@"Error loading plugin $plugin: $(e.message)\n");
}
}

16
plugins/omemo/CMakeLists.txt
View file

@ -14,10 +14,20 @@ pkg_check_modules(OMEMO REQUIRED ${OMEMO_PACKAGES})
vala_precompile(OMEMO_VALA_C
SOURCES
src/plugin.vala
src/module.vala
src/manager.vala
src/account_settings_entry.vala
src/account_settings_widget.vala
src/bundle.vala
src/database.vala
src/encrypt_status.vala
src/encryption_list_entry.vala
src/manager.vala
src/message_flag.vala
src/plugin.vala
src/pre_key_store.vala
src/register_plugin.vala
src/session_store.vala
src/signed_pre_key_store.vala
src/stream_module.vala
CUSTOM_VAPIS
${CMAKE_BINARY_DIR}/exports/signal-protocol.vapi
${CMAKE_BINARY_DIR}/exports/xmpp-vala.vapi

23
plugins/omemo/src/account_settings_entry.vala Normal file
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@ -0,0 +1,23 @@
namespace Dino.Plugins.Omemo {
public class AccountSettingsEntry : Plugins.AccountSettingsEntry {
private Plugin plugin;
public AccountSettingsEntry(Plugin plugin) {
this.plugin = plugin;
}
public override string id { get {
return "omemo_identity_key";
}}
public override string name { get {
return "OMEMO";
}}
public override Plugins.AccountSettingsWidget get_widget() {
return new AccountSettingWidget(plugin);
}
}
}

63
plugins/omemo/src/account_settings_widget.vala Normal file
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@ -0,0 +1,63 @@
using Gtk;
using Dino.Entities;
namespace Dino.Plugins.Omemo {
public class AccountSettingWidget : Plugins.AccountSettingsWidget, Box {
private Plugin plugin;
private Label fingerprint;
private Account account;
public AccountSettingWidget(Plugin plugin) {
this.plugin = plugin;
fingerprint = new Label("...");
fingerprint.xalign = 0;
Border border = new Button().get_style_context().get_padding(StateFlags.NORMAL);
fingerprint.set_padding(border.left + 1, border.top + 1);
fingerprint.visible = true;
pack_start(fingerprint);
Button btn = new Button();
btn.image = new Image.from_icon_name("view-list-symbolic", IconSize.BUTTON);
btn.relief = ReliefStyle.NONE;
btn.visible = true;
btn.valign = Align.CENTER;
btn.clicked.connect(() => { activated(); });
pack_start(btn, false);
}
public void set_account(Account account) {
this.account = account;
try {
Qlite.Row? row = plugin.db.identity.row_with(plugin.db.identity.account_id, account.id);
if (row == null) {
fingerprint.set_markup(@"Own fingerprint\n<span font='8'>Will be generated on first connect</span>");
} else {
uint8[] arr = Base64.decode(row[plugin.db.identity.identity_key_public_base64]);
arr = arr[1:arr.length];
string res = "";
foreach (uint8 i in arr) {
string s = i.to_string("%x");
if (s.length == 1) s = "0" + s;
res = res + s;
if ((res.length % 9) == 8) {
if (res.length == 35) {
res += "\n";
} else {
res += " ";
}
}
}
fingerprint.set_markup(@"Own fingerprint\n<span font_family='monospace' font='8'>$res</span>");
}
} catch (Qlite.DatabaseError e) {
fingerprint.set_markup(@"Own fingerprint\n<span font='8'>Database error</span>");
}
}
public void deactivate() {
}
}
}

87
plugins/omemo/src/bundle.vala Normal file
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@ -0,0 +1,87 @@
using Gee;
using Signal;
using Xmpp.Core;
namespace Dino.Plugins.Omemo {
public class Bundle {
private StanzaNode? node;
public Bundle(StanzaNode? node) {
this.node = node;
}
public int32 signed_pre_key_id { owned get {
if (node == null) return -1;
string id = node.get_deep_attribute("signedPreKeyPublic", "signedPreKeyId");
if (id == null) return -1;
return int.parse(id);
}}
public ECPublicKey? signed_pre_key { owned get {
if (node == null) return null;
string? key = node.get_deep_string_content("signedPreKeyPublic");
if (key == null) return null;
try {
return Plugin.context.decode_public_key(Base64.decode(key));
} catch (Error e) {
return null;
}
}}
public uint8[]? signed_pre_key_signature { owned get {
if (node == null) return null;
string? sig = node.get_deep_string_content("signedPreKeySignature");
if (sig == null) return null;
return Base64.decode(sig);
}}
public ECPublicKey? identity_key { owned get {
if (node == null) return null;
string? key = node.get_deep_string_content("identityKey");
if (key == null) return null;
try {
return Plugin.context.decode_public_key(Base64.decode(key));
} catch (Error e) {
return null;
}
}}
public ArrayList<PreKey> pre_keys { owned get {
ArrayList<PreKey> list = new ArrayList<PreKey>();
if (node == null || node.get_subnode("prekeys") == null) return list;
node.get_deep_subnodes("prekeys", "preKeyPublic")
.filter((node) => node.get_attribute("preKeyId") != null)
.map<PreKey>(PreKey.create)
.foreach((key) => list.add(key));
return list;
}}
public class PreKey {
private StanzaNode node;
public static PreKey create(owned StanzaNode node) {
return new PreKey(node);
}
public PreKey(StanzaNode node) {
this.node = node;
}
public int32 key_id { owned get {
return int.parse(node.get_attribute("preKeyId") ?? "-1");
}}
public ECPublicKey? key { owned get {
string? key = node.get_string_content();
if (key == null) return null;
try {
return Plugin.context.decode_public_key(Base64.decode(key));
} catch (Error e) {
return null;
}
}}
}
}
}

4
plugins/omemo/src/database.vala
View file

@ -4,7 +4,7 @@ using Qlite;
using Dino.Entities;
namespace Dino.Omemo {
namespace Dino.Plugins.Omemo {
public class Database : Qlite.Database {
private const int VERSION = 0;
@ -63,7 +63,7 @@ public class Database : Qlite.Database {
public PreKeyTable pre_key { get; private set; }
public SessionTable session { get; private set; }
public Database(string fileName) {
public Database(string fileName) throws DatabaseError {
base(fileName, VERSION);
identity = new IdentityTable(this);
signed_pre_key = new SignedPreKeyTable(this);

17
plugins/omemo/src/encrypt_status.vala Normal file
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@ -0,0 +1,17 @@
namespace Dino.Plugins.Omemo {
public class EncryptStatus {
public bool encrypted { get; internal set; }
public int other_devices { get; internal set; }
public int other_success { get; internal set; }
public int other_lost { get; internal set; }
public int other_unknown { get; internal set; }
public int other_failure { get; internal set; }
public int own_devices { get; internal set; }
public int own_success { get; internal set; }
public int own_lost { get; internal set; }
public int own_unknown { get; internal set; }
public int own_failure { get; internal set; }
}
}

23
plugins/omemo/src/encryption_list_entry.vala Normal file
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@ -0,0 +1,23 @@
namespace Dino.Plugins.Omemo {
public class EncryptionListEntry : Plugins.EncryptionListEntry, Object {
private Plugin plugin;
public EncryptionListEntry(Plugin plugin) {
this.plugin = plugin;
}
public Entities.Encryption encryption { get {
return Entities.Encryption.OMEMO;
}}
public string name { get {
return "OMEMO";
}}
public bool can_encrypt(Entities.Conversation conversation) {
return Manager.get_instance(plugin.app.stream_interaction).can_encrypt(conversation);
}
}
}

129
plugins/omemo/src/manager.vala
View file

@ -4,7 +4,7 @@ using Qlite;
using Xmpp;
using Gee;
namespace Dino.Omemo {
namespace Dino.Plugins.Omemo {
public class Manager : StreamInteractionModule, Object {
public const string id = "omemo_manager";
@ -31,7 +31,7 @@ public class Manager : StreamInteractionModule, Object {
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));
StreamModule module = stream_interactor.get_stream(conversation.account).get_module(StreamModule.IDENTITY);
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;
@ -63,9 +63,9 @@ public class Manager : StreamInteractionModule, Object {
}
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));
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(() => on_device_list_loaded(account));
stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).session_started.connect((jid, device_id) => on_session_started(account, jid));
}
private void on_session_started(Account account, string jid) {
@ -96,7 +96,7 @@ public class Manager : StreamInteractionModule, Object {
}
}
private void on_store_created(Account account, Context context, Store store) {
private void on_store_created(Account account, Store store) {
Qlite.Row? row = null;
try {
row = db.identity.row_with(db.identity.account_id, account.id);
@ -107,13 +107,13 @@ public class Manager : StreamInteractionModule, Object {
if (row == null) {
// OMEMO not yet initialized, starting with empty base
try {
store.identity_key_store.local_registration_id = Random.int_range(1, int32.MAX);
Signal.ECKeyPair key_pair = context.generate_key_pair();
Signal.ECKeyPair key_pair = Plugin.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)
@ -139,118 +139,9 @@ public class Manager : StreamInteractionModule, Object {
}
}
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
public bool can_encrypt(Entities.Conversation conversation) {
return stream_interactor.get_stream(conversation.account).get_module(StreamModule.IDENTITY).is_known_address(conversation.counterpart.bare_jid.to_string());
}
internal string get_id() {

23
plugins/omemo/src/message_flag.vala Normal file
View file

@ -0,0 +1,23 @@
using Xmpp;
namespace Dino.Plugins.Omemo {
public class MessageFlag : Message.MessageFlag {
public const string id = "omemo";
public bool decrypted = false;
public static MessageFlag? get_flag(Message.Stanza message) {
return (MessageFlag) message.get_flag(NS_URI, id);
}
public override string get_ns() {
return NS_URI;
}
public override string get_id() {
return id;
}
}
}

122
plugins/omemo/src/plugin.vala
View file

@ -1,130 +1,34 @@
using Xmpp;
namespace Dino.Plugins.Omemo {
namespace Dino.Omemo {
public class Plugin : RootInterface, Object {
public static Signal.Context context;
public class EncryptionListEntry : Plugins.EncryptionListEntry, Object {
private Plugin plugin;
public EncryptionListEntry(Plugin plugin) {
this.plugin = plugin;
}
public Entities.Encryption encryption { get {
return Entities.Encryption.OMEMO;
}}
public string name { get {
return "OMEMO";
}}
public bool can_encrypt(Entities.Conversation conversation) {
return Manager.get_instance(plugin.app.stream_interaction).con_encrypt(conversation);
}
}
public class AccountSettingsEntry : Plugins.AccountSettingsEntry {
private Plugin plugin;
public AccountSettingsEntry(Plugin plugin) {
this.plugin = plugin;
}
public override string id { get {
return "omemo_identity_key";
}}
public override string name { get {
return "OMEMO";
}}
public override Plugins.AccountSettingsWidget get_widget() {
return new AccountSettingWidget(plugin);
}
}
public class AccountSettingWidget : Plugins.AccountSettingsWidget, Gtk.Box {
private Plugin plugin;
private Gtk.Label fingerprint;
private Entities.Account account;
public AccountSettingWidget(Plugin plugin) {
this.plugin = plugin;
fingerprint = new Gtk.Label("...");
fingerprint.xalign = 0;
Gtk.Border border = new Gtk.Button().get_style_context().get_padding(Gtk.StateFlags.NORMAL);
fingerprint.set_padding(border.left + 1, border.top + 1);
fingerprint.visible = true;
pack_start(fingerprint);
Gtk.Button btn = new Gtk.Button();
btn.image = new Gtk.Image.from_icon_name("view-list-symbolic", Gtk.IconSize.BUTTON);
btn.relief = Gtk.ReliefStyle.NONE;
btn.visible = true;
btn.valign = Gtk.Align.CENTER;
btn.clicked.connect(() => { activated(); });
pack_start(btn, false);
}
public void set_account(Entities.Account account) {
this.account = account;
try {
Qlite.Row? row = plugin.db.identity.row_with(plugin.db.identity.account_id, account.id);
if (row == null) {
fingerprint.set_markup(@"Own fingerprint\n<span font='8'>Will be generated on first connect</span>");
} else {
uint8[] arr = Base64.decode(row[plugin.db.identity.identity_key_public_base64]);
arr = arr[1:arr.length];
string res = "";
foreach (uint8 i in arr) {
string s = i.to_string("%x");
if (s.length == 1) s = "0" + s;
res = res + s;
if ((res.length % 9) == 8) {
if (res.length == 35) {
res += "\n";
} else {
res += " ";
}
}
}
fingerprint.set_markup(@"Own fingerprint\n<span font_family='monospace' font='8'>$res</span>");
}
} catch (Qlite.DatabaseError e) {
fingerprint.set_markup(@"Own fingerprint\n<span font='8'>Database error</span>");
}
}
public void deactivate() {
}
}
public class Plugin : Plugins.RootInterface, Object {
public Dino.Application app;
public Database db;
public EncryptionListEntry list_entry;
public AccountSettingsEntry settings_entry;
public void registered(Dino.Application app) {
try {
context = new Signal.Context(false);
this.app = app;
this.db = new Database("omemo.db");
this.list_entry = new EncryptionListEntry(this);
this.settings_entry = new AccountSettingsEntry(this);
app.plugin_registry.register_encryption_list_entry(list_entry);
app.plugin_registry.register_account_settings_entry(settings_entry);
app.stream_interaction.module_manager.initialize_account_modules.connect((account, list) => {
list.add(new Module());
this.app.plugin_registry.register_encryption_list_entry(list_entry);
this.app.plugin_registry.register_account_settings_entry(settings_entry);
this.app.stream_interaction.module_manager.initialize_account_modules.connect((account, list) => {
list.add(new StreamModule());
});
Manager.start(app.stream_interaction, db);
Manager.start(this.app.stream_interaction, db);
} catch (Error e) {
print(@"Error initializing OMEMO: $(e.message)\n");
}
}
public void shutdown() {
// Nothing to do
}
}
}
public Type register_plugin(Module module) {
return typeof (Dino.Omemo.Plugin);
}

53
plugins/omemo/src/pre_key_store.vala Normal file
View file

@ -0,0 +1,53 @@
using Signal;
using Qlite;
namespace Dino.Plugins.Omemo {
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() {
try {
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]));
}
} catch (Error e) {
print(@"OMEMO: Error while initializing pre key store: $(e.message)\n");
}
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) {
try {
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();
} catch (Error e) {
print(@"OMEMO: Error while updating pre key store: $(e.message)\n");
}
}
public void on_pre_key_deleted(PreKeyStore.Key key) {
try {
db.pre_key.delete()
.with(db.pre_key.identity_id, "=", identity_id)
.with(db.pre_key.pre_key_id, "=", (int) key.key_id)
.perform();
} catch (Error e) {
print(@"OMEMO: Error while updating pre key store: $(e.message)\n");
}
}
}
}

3
plugins/omemo/src/register_plugin.vala Normal file
View file

@ -0,0 +1,3 @@
public Type register_plugin(Module module) {
return typeof (Dino.Plugins.Omemo.Plugin);
}

58
plugins/omemo/src/session_store.vala Normal file
View file

@ -0,0 +1,58 @@
using Signal;
using Qlite;
namespace Dino.Plugins.Omemo {
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() {
try {
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]));
}
} catch (Error e) {
print(@"OMEMO: Error while initializing session store: $(e.message)\n");
}
session_stored.connect(on_session_stored);
session_removed.connect(on_session_deleted);
}
public void on_session_stored(SessionStore.Session session) {
try {
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();
} catch (Error e) {
print(@"OMEMO: Error while updating session store: $(e.message)\n");
}
}
public void on_session_deleted(SessionStore.Session session) {
try {
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();
} catch (Error e) {
print(@"OMEMO: Error while updating session store: $(e.message)\n");
}
}
}
}

54
plugins/omemo/src/signed_pre_key_store.vala Normal file
View file

@ -0,0 +1,54 @@
using Qlite;
using Signal;
namespace Dino.Plugins.Omemo {
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() {
try {
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]));
}
} catch (Error e) {
print(@"OMEMO: Error while initializing signed pre key store: $(e.message)\n");
}
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) {
try {
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();
} catch (Error e) {
print(@"OMEMO: Error while updating signed pre key store: $(e.message)\n");
}
}
public void on_signed_pre_key_deleted(SignedPreKeyStore.Key key) {
try {
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();
} catch (Error e) {
print(@"OMEMO: Error while updating signed pre key store: $(e.message)\n");
}
}
}
}

185
plugins/omemo/src/module.vala → plugins/omemo/src/stream_module.vala
View file

@ -4,7 +4,7 @@ using Xmpp.Core;
using Xmpp.Xep;
using Signal;
namespace Dino.Omemo {
namespace Dino.Plugins.Omemo {
private const string NS_URI = "eu.siacs.conversations.axolotl";
private const string NODE_DEVICELIST = NS_URI + ".devicelist";
@ -13,36 +13,23 @@ private const string NODE_VERIFICATION = NS_URI + ".verification";
private const int NUM_KEYS_TO_PUBLISH = 100;
public class Module : XmppStreamModule {
private const string ID = "axolotl_module";
public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
public class StreamModule : XmppStreamModule {
private const string ID = "omemo_module";
public static ModuleIdentity<StreamModule> IDENTITY = new ModuleIdentity<StreamModule>(NS_URI, ID);
private Store store;
internal static Context context;
private bool device_list_loading = false;
private bool device_list_modified = false;
private Map<string, ArrayList<int32>> device_lists = new HashMap<string, ArrayList<int32>>();
private Map<string, ArrayList<int32>> ignored_devices = new HashMap<string, ArrayList<int32>>();
public signal void store_created(Context context, Store store);
public signal void store_created(Store store);
public signal void device_list_loaded();
public signal void session_started(string jid, int device_id);
public Module() {
lock(context) {
if (context == null) {
try {
context = new Context(true);
} catch (Error e) {
print(@"Error initializing axolotl: $(e.message)\n");
}
}
}
}
public EncryptStatus encrypt(Message.Stanza message, string self_bare_jid) {
EncryptStatus status = new EncryptStatus();
if (context == null) return status;
if (Plugin.context == null) return status;
try {
string name = get_bare_jid(message.to);
if (device_lists.get(name) == null || device_lists.get(self_bare_jid) == null) return status;
@ -51,9 +38,9 @@ public class Module : XmppStreamModule {
if (status.other_devices == 0) return status;
uint8[] key = new uint8[16];
context.randomize(key);
Plugin.context.randomize(key);
uint8[] iv = new uint8[16];
context.randomize(iv);
Plugin.context.randomize(iv);
uint8[] ciphertext = aes_encrypt(Cipher.AES_GCM_NOPADDING, key, iv, message.body.data);
@ -106,7 +93,7 @@ public class Module : XmppStreamModule {
message.body = "[This message is OMEMO encrypted]";
status.encrypted = true;
} catch (Error e) {
print(@"Axolotl error while encrypting message: $(e.message)\n");
print(@"Signal error while encrypting message: $(e.message)\n");
}
return status;
}
@ -122,13 +109,13 @@ public class Module : XmppStreamModule {
}
public override void attach(XmppStream stream) {
if (context == null) return;
if (Plugin.context == null) return;
Message.Module.require(stream);
Pubsub.Module.require(stream);
stream.get_module(Message.Module.IDENTITY).pre_received_message.connect(on_pre_received_message);
stream.get_module(Pubsub.Module.IDENTITY).add_filtered_notification(stream, NODE_DEVICELIST, on_devicelist, this);
this.store = context.create_store();
store_created(context, store);
this.store = Plugin.context.create_store();
store_created(store);
}
private void on_pre_received_message(XmppStream stream, Message.Stanza message) {
@ -148,11 +135,11 @@ public class Module : XmppStreamModule {
address.name = get_bare_jid(message.from);
address.device_id = header.get_attribute_int("sid");
if (key_node.get_attribute_bool("prekey")) {
PreKeySignalMessage msg = context.deserialize_pre_key_signal_message(Base64.decode(key_node.get_string_content()));
PreKeySignalMessage msg = Plugin.context.deserialize_pre_key_signal_message(Base64.decode(key_node.get_string_content()));
SessionCipher cipher = store.create_session_cipher(address);
key = cipher.decrypt_pre_key_signal_message(msg);
} else {
SignalMessage msg = context.deserialize_signal_message(Base64.decode(key_node.get_string_content()));
SignalMessage msg = Plugin.context.deserialize_signal_message(Base64.decode(key_node.get_string_content()));
SessionCipher cipher = store.create_session_cipher(address);
key = cipher.decrypt_signal_message(msg);
}
@ -175,7 +162,7 @@ public class Module : XmppStreamModule {
flag.decrypted = true;
}
} catch (Error e) {
print(@"Axolotl error while decrypting message: $(e.message)\n");
print(@"Signal error while decrypting message: $(e.message)\n");
}
}
}
@ -246,9 +233,13 @@ public class Module : XmppStreamModule {
foreach(int32 device_id in device_lists[bare_jid]) {
if (!is_ignored_device(bare_jid, device_id)) {
address.device_id = device_id;
try {
if (!store.contains_session(address)) {
start_session_with(stream, bare_jid, device_id);
}
} catch (Error e) {
// Ignore
}
}
}
address.device_id = 0;
@ -259,6 +250,10 @@ public class Module : XmppStreamModule {
stream.get_module(Pubsub.Module.IDENTITY).request(stream, bare_jid, @"$NODE_BUNDLES:$device_id", on_other_bundle_result, Tuple.create(store, device_id));
}
public bool is_known_address(string name) {
return device_lists.has_key(name);
}
public void ignore_device(string jid, int32 device_id) {
if (device_id <= 0) return;
lock (ignored_devices) {
@ -313,11 +308,11 @@ public class Module : XmppStreamModule {
fail = true;
}
address.device_id = 0; // TODO: Hack to have address obj live longer
get_module(stream).session_started(jid, device_id);
stream.get_module(IDENTITY).session_started(jid, device_id);
}
}
if (fail) {
get_module(stream).ignore_device(jid, device_id);
stream.get_module(IDENTITY).ignore_device(jid, device_id);
}
}
@ -347,6 +342,7 @@ public class Module : XmppStreamModule {
signed_pre_key = bundle.signed_pre_key;
}
try {
// Validate IdentityKey
if (store.identity_key_pair.public.compare(identity_key) != 0) {
changed = true;
@ -356,7 +352,7 @@ public class Module : XmppStreamModule {
// Validate signedPreKeyRecord + ID
if (signed_pre_key_id == -1 || !store.contains_signed_pre_key(signed_pre_key_id) || store.load_signed_pre_key(signed_pre_key_id).key_pair.public.compare(signed_pre_key) != 0) {
signed_pre_key_id = Random.int_range(1, int32.MAX); // TODO: No random, use ordered number
signed_pre_key_record = context.generate_signed_pre_key(identity_key_pair, signed_pre_key_id);
signed_pre_key_record = Plugin.context.generate_signed_pre_key(identity_key_pair, signed_pre_key_id);
store.store_signed_pre_key(signed_pre_key_record);
changed = true;
} else {
@ -376,7 +372,7 @@ public class Module : XmppStreamModule {
int new_keys = NUM_KEYS_TO_PUBLISH - pre_key_records.size;
if (new_keys > 0) {
int32 next_id = Random.int_range(1, int32.MAX); // TODO: No random, use ordered number
Set<PreKeyRecord> new_records = context.generate_pre_keys((uint)next_id, (uint)new_keys);
Set<PreKeyRecord> new_records = Plugin.context.generate_pre_keys((uint)next_id, (uint)new_keys);
pre_key_records.add_all(new_records);
foreach (PreKeyRecord record in new_records) {
store.store_pre_key(record);
@ -387,9 +383,12 @@ public class Module : XmppStreamModule {
if (changed) {
publish_bundles(stream, signed_pre_key_record, identity_key_pair, pre_key_records, (int32) store.local_registration_id);
}
} catch (Error e) {
print(@"Unexpected error while publishing bundle: $(e.message)\n");
}
}
public static void publish_bundles(XmppStream stream, SignedPreKeyRecord signed_pre_key_record, IdentityKeyPair identity_key_pair, Set<PreKeyRecord> pre_key_records, int32 device_id) {
public static void publish_bundles(XmppStream stream, SignedPreKeyRecord signed_pre_key_record, IdentityKeyPair identity_key_pair, Set<PreKeyRecord> pre_key_records, int32 device_id) throws Error {
ECKeyPair tmp;
StanzaNode bundle = new StanzaNode.build("bundle", NS_URI)
.add_self_xmlns()
@ -415,10 +414,6 @@ public class Module : XmppStreamModule {
}
public static Module? get_module(XmppStream stream) {
return (Module?) stream.get_module(IDENTITY);
}
public override string get_ns() {
return NS_URI;
}
@ -428,120 +423,4 @@ public class Module : XmppStreamModule {
}
}
public class MessageFlag : Message.MessageFlag {
public const string id = "axolotl";
public bool decrypted = false;
public static MessageFlag? get_flag(Message.Stanza message) {
return (MessageFlag) message.get_flag(NS_URI, id);
}
public override string get_ns() {
return NS_URI;
}
public override string get_id() {
return id;
}
}
internal class Bundle {
private StanzaNode? node;
public Bundle(StanzaNode? node) {
this.node = node;
}
public int32 signed_pre_key_id { owned get {
if (node == null) return -1;
string id = node.get_deep_attribute("signedPreKeyPublic", "signedPreKeyId");
if (id == null) return -1;
return id.to_int();
}}
public ECPublicKey? signed_pre_key { owned get {
if (node == null) return null;
string? key = node.get_deep_string_content("signedPreKeyPublic");
if (key == null) return null;
try {
return Module.context.decode_public_key(Base64.decode(key));
} catch (Error e) {
return null;
}
}}
public uint8[] signed_pre_key_signature { owned get {
if (node == null) return null;
string? sig = node.get_deep_string_content("signedPreKeySignature");
if (sig == null) return null;
try {
return Base64.decode(sig);
} catch (Error e) {
return null;
}
}}
public ECPublicKey? identity_key { owned get {
if (node == null) return null;
string? key = node.get_deep_string_content("identityKey");
if (key == null) return null;
try {
return Module.context.decode_public_key(Base64.decode(key));
} catch (Error e) {
return null;
}
}}
public ArrayList<PreKey> pre_keys { owned get {
if (node == null || node.get_subnode("prekeys") == null) return null;
ArrayList<PreKey> list = new ArrayList<PreKey>();
node.get_deep_subnodes("prekeys", "preKeyPublic")
.filter((node) => node.get_attribute("preKeyId") != null)
.map<PreKey>(PreKey.create)
.foreach((key) => list.add(key));
return list;
}}
internal class PreKey {
private StanzaNode node;
public static PreKey create(owned StanzaNode node) {
return new PreKey(node);
}
public PreKey(StanzaNode node) {
this.node = node;
}
public int32 key_id { owned get {
return (node.get_attribute("preKeyId") ?? "-1").to_int();
}}
public ECPublicKey? key { owned get {
string? key = node.get_string_content();
if (key == null) return null;
try {
return Module.context.decode_public_key(Base64.decode(key));
} catch (Error e) {
return null;
}
}}
}
}
public class EncryptStatus {
public bool encrypted { get; internal set; }
public int other_devices { get; internal set; }
public int other_success { get; internal set; }
public int other_lost { get; internal set; }
public int other_unknown { get; internal set; }
public int other_failure { get; internal set; }
public int own_devices { get; internal set; }
public int own_success { get; internal set; }
public int own_lost { get; internal set; }
public int own_unknown { get; internal set; }
public int own_failure { get; internal set; }
}
}

1
xmpp-vala/CMakeLists.txt
View file

@ -1,6 +1,5 @@
find_package(Vala REQUIRED)
find_package(PkgConfig REQUIRED)
find_package(GPGME REQUIRED)
find_package(LIBUUID REQUIRED)
include(GlibCompileResourcesSupport)
include(${VALA_USE_FILE})

6
xmpp-vala/src/core/stanza_node.vala
View file

@ -99,7 +99,7 @@ public class StanzaNode : StanzaEntry {
return res.down() == "true" || res == "1";
}
public StanzaAttribute get_attribute_raw(string name, string? ns_uri = null) {
public StanzaAttribute? get_attribute_raw(string name, string? ns_uri = null) {
string _name = name;
string? _ns_uri = ns_uri;
if (_ns_uri == null) {
@ -225,12 +225,12 @@ public class StanzaNode : StanzaEntry {
public ArrayList<StanzaNode> get_deep_subnodes_(va_list l) {
StanzaNode? node = this;
string? subnode_name = l.arg();
if (subnode_name == null) return null;
if (subnode_name == null) return new ArrayList<StanzaNode>();
while(true) {
string? s = l.arg();
if (s == null) break;
node = node.get_subnode(subnode_name);
if (node == null) return null;
if (node == null) return new ArrayList<StanzaNode>();
subnode_name = s;
}
return node.get_subnodes(subnode_name);

2
xmpp-vala/src/core/xmpp_stream.vala
View file

@ -93,7 +93,7 @@ public class XmppStream {
}
}
public IOStream? get_stream() {
internal IOStream? get_stream() {
return stream;
}