diff --git a/src/Olm.cpp b/src/Olm.cpp
index fee685a3..d6e8c10b 100644
--- a/src/Olm.cpp
+++ b/src/Olm.cpp
@@ -47,7 +47,7 @@ handle_to_device_messages(const std::vector<mtx::events::collections::DeviceEven
if (msg_type == to_string(mtx::events::EventType::RoomEncrypted)) {
try {
- OlmMessage olm_msg = j_msg;
+ olm::OlmMessage olm_msg = j_msg;
handle_olm_message(std::move(olm_msg));
} catch (const nlohmann::json::exception &e) {
nhlog::crypto()->warn(
@@ -56,10 +56,6 @@ handle_to_device_messages(const std::vector<mtx::events::collections::DeviceEven
nhlog::crypto()->warn("validation error for olm message: {} {}",
e.what(),
j_msg.dump(2));
-
- nhlog::crypto()->warn("validation error for olm message: {} {}",
- e.what(),
- j_msg.dump(2));
}
} else if (msg_type == to_string(mtx::events::EventType::RoomKeyRequest)) {
@@ -250,7 +246,10 @@ handle_pre_key_olm_message(const std::string &sender,
nhlog::crypto()->debug("decrypted message: \n {}", plaintext.dump(2));
try {
- cache::saveOlmSession(sender_key, std::move(inbound_session));
+ nhlog::crypto()->debug("New olm session: {}",
+ mtx::crypto::session_id(inbound_session.get()));
+ cache::saveOlmSession(
+ sender_key, std::move(inbound_session), QDateTime::currentMSecsSinceEpoch());
} catch (const lmdb::error &e) {
nhlog::db()->warn(
"failed to save inbound olm session from {}: {}", sender, e.what());
@@ -318,7 +317,10 @@ try_olm_decryption(const std::string &sender_key, const mtx::events::msg::OlmCip
try {
text = olm::client()->decrypt_message(session->get(), msg.type, msg.body);
- cache::saveOlmSession(id, std::move(session.value()));
+ nhlog::crypto()->debug("Updated olm session: {}",
+ mtx::crypto::session_id(session->get()));
+ cache::saveOlmSession(
+ id, std::move(session.value()), QDateTime::currentMSecsSinceEpoch());
} catch (const mtx::crypto::olm_exception &e) {
nhlog::crypto()->debug("failed to decrypt olm message ({}, {}) with {}: {}",
msg.type,
@@ -390,9 +392,10 @@ import_inbound_megolm_session(
return;
}
- // TODO(Nico): Reload messages encrypted with this key.
nhlog::crypto()->info(
"established inbound megolm session ({}, {})", roomKey.content.room_id, roomKey.sender);
+
+ ChatPage::instance()->receivedSessionKey(index.room_id, index.session_id);
}
void
@@ -403,48 +406,24 @@ mark_keys_as_published()
}
void
-request_keys(const std::string &room_id, const std::string &event_id)
-{
- nhlog::crypto()->info("requesting keys for event {} at {}", event_id, room_id);
-
- http::client()->get_event(
- room_id,
- event_id,
- [event_id, room_id](const mtx::events::collections::TimelineEvents &res,
- mtx::http::RequestErr err) {
- using namespace mtx::events;
-
- if (err) {
- nhlog::net()->warn(
- "failed to retrieve event {} from {}", event_id, room_id);
- return;
- }
-
- if (!std::holds_alternative<EncryptedEvent<msg::Encrypted>>(res)) {
- nhlog::net()->info(
- "retrieved event is not encrypted: {} from {}", event_id, room_id);
- return;
- }
-
- olm::send_key_request_for(room_id, std::get<EncryptedEvent<msg::Encrypted>>(res));
- });
-}
-
-void
-send_key_request_for(const std::string &room_id,
- const mtx::events::EncryptedEvent<mtx::events::msg::Encrypted> &e)
+send_key_request_for(mtx::events::EncryptedEvent<mtx::events::msg::Encrypted> e,
+ const std::string &request_id,
+ bool cancel)
{
using namespace mtx::events;
- nhlog::crypto()->debug("sending key request: {}", json(e).dump(2));
+ nhlog::crypto()->debug("sending key request: sender_key {}, session_id {}",
+ e.content.sender_key,
+ e.content.session_id);
mtx::events::msg::KeyRequest request;
- request.action = mtx::events::msg::RequestAction::Request;
+ request.action = !cancel ? mtx::events::msg::RequestAction::Request
+ : mtx::events::msg::RequestAction::Cancellation;
request.algorithm = MEGOLM_ALGO;
- request.room_id = room_id;
+ request.room_id = e.room_id;
request.sender_key = e.content.sender_key;
request.session_id = e.content.session_id;
- request.request_id = "key_request." + http::client()->generate_txn_id();
+ request.request_id = request_id;
request.requesting_device_id = http::client()->device_id();
nhlog::crypto()->debug("m.room_key_request: {}", json(request).dump(2));
@@ -560,147 +539,13 @@ send_megolm_key_to_device(const std::string &user_id,
const std::string &device_id,
const mtx::events::msg::ForwardedRoomKey &payload)
{
- mtx::requests::QueryKeys req;
- req.device_keys[user_id] = {device_id};
+ mtx::events::DeviceEvent<mtx::events::msg::ForwardedRoomKey> room_key;
+ room_key.content = payload;
+ room_key.type = mtx::events::EventType::ForwardedRoomKey;
- http::client()->query_keys(
- req,
- [payload, user_id, device_id](const mtx::responses::QueryKeys &res,
- mtx::http::RequestErr err) {
- if (err) {
- nhlog::net()->warn("failed to query device keys: {} {}",
- err->matrix_error.error,
- static_cast<int>(err->status_code));
- return;
- }
-
- nhlog::net()->warn("retrieved device keys from {}, {}", user_id, device_id);
-
- if (res.device_keys.empty()) {
- nhlog::net()->warn("no devices retrieved {}", user_id);
- return;
- }
-
- auto device = res.device_keys.begin()->second;
- if (device.empty()) {
- nhlog::net()->warn("no keys retrieved from user, device {}", user_id);
- return;
- }
-
- const auto device_keys = device.begin()->second.keys;
- const auto curveKey = "curve25519:" + device_id;
- const auto edKey = "ed25519:" + device_id;
-
- if ((device_keys.find(curveKey) == device_keys.end()) ||
- (device_keys.find(edKey) == device_keys.end())) {
- nhlog::net()->debug("ignoring malformed keys for device {}", device_id);
- return;
- }
-
- DevicePublicKeys pks;
- pks.ed25519 = device_keys.at(edKey);
- pks.curve25519 = device_keys.at(curveKey);
-
- try {
- if (!mtx::crypto::verify_identity_signature(json(device.begin()->second),
- DeviceId(device_id),
- UserId(user_id))) {
- nhlog::crypto()->warn("failed to verify identity keys: {}",
- json(device).dump(2));
- return;
- }
- } catch (const json::exception &e) {
- nhlog::crypto()->warn("failed to parse device key json: {}", e.what());
- return;
- } catch (const mtx::crypto::olm_exception &e) {
- nhlog::crypto()->warn("failed to verify device key json: {}", e.what());
- return;
- }
-
- mtx::requests::ClaimKeys claim_keys;
- claim_keys.one_time_keys[user_id][device_id] = mtx::crypto::SIGNED_CURVE25519;
-
- http::client()->claim_keys(
- claim_keys,
- [payload, user_id, device_id, pks](const mtx::responses::ClaimKeys &res,
- mtx::http::RequestErr err) {
- if (err) {
- nhlog::net()->warn("claim keys error: {} {} {}",
- err->matrix_error.error,
- err->parse_error,
- static_cast<int>(err->status_code));
- return;
- }
-
- nhlog::net()->info("claimed keys for {}", user_id);
-
- if (res.one_time_keys.size() == 0) {
- nhlog::net()->info("no one-time keys found for user_id: {}",
- user_id);
- return;
- }
-
- if (res.one_time_keys.find(user_id) == res.one_time_keys.end()) {
- nhlog::net()->info("no one-time keys found for user_id: {}",
- user_id);
- return;
- }
-
- auto retrieved_devices = res.one_time_keys.at(user_id);
- if (retrieved_devices.empty()) {
- nhlog::net()->info("claiming keys for {}: no retrieved devices",
- device_id);
- return;
- }
-
- json body;
- body["messages"][user_id] = json::object();
-
- auto device = retrieved_devices.begin()->second;
- nhlog::net()->debug("{} : \n {}", device_id, device.dump(2));
-
- json device_msg;
-
- try {
- auto olm_session = olm::client()->create_outbound_session(
- pks.curve25519, device.begin()->at("key"));
-
- mtx::events::DeviceEvent<mtx::events::msg::ForwardedRoomKey>
- room_key;
- room_key.content = payload;
- room_key.type = mtx::events::EventType::ForwardedRoomKey;
- device_msg = olm::client()->create_olm_encrypted_content(
- olm_session.get(), json(room_key).dump(), pks.curve25519);
-
- cache::saveOlmSession(pks.curve25519, std::move(olm_session));
- } catch (const json::exception &e) {
- nhlog::crypto()->warn("creating outbound session: {}",
- e.what());
- return;
- } catch (const mtx::crypto::olm_exception &e) {
- nhlog::crypto()->warn("creating outbound session: {}",
- e.what());
- return;
- }
-
- body["messages"][user_id][device_id] = device_msg;
-
- nhlog::net()->info(
- "sending m.forwarded_room_key event to {}:{}", user_id, device_id);
- http::client()->send_to_device(
- "m.room.encrypted", body, [user_id](mtx::http::RequestErr err) {
- if (err) {
- nhlog::net()->warn("failed to send "
- "send_to_device "
- "message: {}",
- err->matrix_error.error);
- }
-
- nhlog::net()->info("m.forwarded_room_key send to {}",
- user_id);
- });
- });
- });
+ std::map<std::string, std::vector<std::string>> targets;
+ targets[user_id] = {device_id};
+ send_encrypted_to_device_messages(targets, room_key);
}
DecryptionResult
@@ -749,4 +594,258 @@ decryptEvent(const MegolmSessionIndex &index,
return {std::nullopt, std::nullopt, std::move(te.data)};
}
+
+//! Send encrypted to device messages, targets is a map from userid to device ids or {} for all
+//! devices
+void
+send_encrypted_to_device_messages(const std::map<std::string, std::vector<std::string>> targets,
+ const mtx::events::collections::DeviceEvents &event,
+ bool force_new_session)
+{
+ nlohmann::json ev_json = std::visit([](const auto &e) { return json(e); }, event);
+
+ std::map<std::string, std::vector<std::string>> keysToQuery;
+ mtx::requests::ClaimKeys claims;
+ std::map<mtx::identifiers::User, std::map<std::string, mtx::events::msg::OlmEncrypted>>
+ messages;
+ std::map<std::string, std::map<std::string, DevicePublicKeys>> pks;
+
+ for (const auto &[user, devices] : targets) {
+ auto deviceKeys = cache::client()->userKeys(user);
+
+ // no keys for user, query them
+ if (!deviceKeys) {
+ keysToQuery[user] = devices;
+ continue;
+ }
+
+ auto deviceTargets = devices;
+ if (devices.empty()) {
+ deviceTargets.clear();
+ for (const auto &[device, keys] : deviceKeys->device_keys) {
+ (void)keys;
+ deviceTargets.push_back(device);
+ }
+ }
+
+ for (const auto &device : deviceTargets) {
+ if (!deviceKeys->device_keys.count(device)) {
+ keysToQuery[user] = {};
+ break;
+ }
+
+ auto d = deviceKeys->device_keys.at(device);
+
+ auto session =
+ cache::getLatestOlmSession(d.keys.at("curve25519:" + device));
+ if (!session || force_new_session) {
+ claims.one_time_keys[user][device] = mtx::crypto::SIGNED_CURVE25519;
+ pks[user][device].ed25519 = d.keys.at("ed25519:" + device);
+ pks[user][device].curve25519 = d.keys.at("curve25519:" + device);
+ continue;
+ }
+
+ messages[mtx::identifiers::parse<mtx::identifiers::User>(user)][device] =
+ olm::client()
+ ->create_olm_encrypted_content(session->get(),
+ ev_json,
+ UserId(user),
+ d.keys.at("ed25519:" + device),
+ d.keys.at("curve25519:" + device))
+ .get<mtx::events::msg::OlmEncrypted>();
+
+ try {
+ nhlog::crypto()->debug("Updated olm session: {}",
+ mtx::crypto::session_id(session->get()));
+ cache::saveOlmSession(d.keys.at("curve25519:" + device),
+ std::move(*session),
+ QDateTime::currentMSecsSinceEpoch());
+ } catch (const lmdb::error &e) {
+ nhlog::db()->critical("failed to save outbound olm session: {}",
+ e.what());
+ } catch (const mtx::crypto::olm_exception &e) {
+ nhlog::crypto()->critical(
+ "failed to pickle outbound olm session: {}", e.what());
+ }
+ }
+ }
+
+ if (!messages.empty())
+ http::client()->send_to_device<mtx::events::msg::OlmEncrypted>(
+ http::client()->generate_txn_id(), messages, [](mtx::http::RequestErr err) {
+ if (err) {
+ nhlog::net()->warn("failed to send "
+ "send_to_device "
+ "message: {}",
+ err->matrix_error.error);
+ }
+ });
+
+ auto BindPks = [ev_json](decltype(pks) pks_temp) {
+ return [pks = pks_temp, ev_json](const mtx::responses::ClaimKeys &res,
+ mtx::http::RequestErr) {
+ std::map<mtx::identifiers::User,
+ std::map<std::string, mtx::events::msg::OlmEncrypted>>
+ messages;
+ for (const auto &[user_id, retrieved_devices] : res.one_time_keys) {
+ nhlog::net()->debug("claimed keys for {}", user_id);
+ if (retrieved_devices.size() == 0) {
+ nhlog::net()->debug(
+ "no one-time keys found for user_id: {}", user_id);
+ continue;
+ }
+
+ for (const auto &rd : retrieved_devices) {
+ const auto device_id = rd.first;
+
+ nhlog::net()->debug(
+ "{} : \n {}", device_id, rd.second.dump(2));
+
+ if (rd.second.empty() ||
+ !rd.second.begin()->contains("key")) {
+ nhlog::net()->warn(
+ "Skipping device {} as it has no key.",
+ device_id);
+ continue;
+ }
+
+ // TODO: Verify signatures
+ auto otk = rd.second.begin()->at("key");
+
+ auto id_key = pks.at(user_id).at(device_id).curve25519;
+ auto session =
+ olm::client()->create_outbound_session(id_key, otk);
+
+ messages[mtx::identifiers::parse<mtx::identifiers::User>(
+ user_id)][device_id] =
+ olm::client()
+ ->create_olm_encrypted_content(
+ session.get(),
+ ev_json,
+ UserId(user_id),
+ pks.at(user_id).at(device_id).ed25519,
+ id_key)
+ .get<mtx::events::msg::OlmEncrypted>();
+
+ try {
+ nhlog::crypto()->debug(
+ "Updated olm session: {}",
+ mtx::crypto::session_id(session.get()));
+ cache::saveOlmSession(
+ id_key,
+ std::move(session),
+ QDateTime::currentMSecsSinceEpoch());
+ } catch (const lmdb::error &e) {
+ nhlog::db()->critical(
+ "failed to save outbound olm session: {}",
+ e.what());
+ } catch (const mtx::crypto::olm_exception &e) {
+ nhlog::crypto()->critical(
+ "failed to pickle outbound olm session: {}",
+ e.what());
+ }
+ }
+ nhlog::net()->info("send_to_device: {}", user_id);
+ }
+
+ if (!messages.empty())
+ http::client()->send_to_device<mtx::events::msg::OlmEncrypted>(
+ http::client()->generate_txn_id(),
+ messages,
+ [](mtx::http::RequestErr err) {
+ if (err) {
+ nhlog::net()->warn("failed to send "
+ "send_to_device "
+ "message: {}",
+ err->matrix_error.error);
+ }
+ });
+ };
+ };
+
+ http::client()->claim_keys(claims, BindPks(pks));
+
+ if (!keysToQuery.empty()) {
+ mtx::requests::QueryKeys req;
+ req.device_keys = keysToQuery;
+ http::client()->query_keys(
+ req,
+ [ev_json, BindPks](const mtx::responses::QueryKeys &res,
+ mtx::http::RequestErr err) {
+ if (err) {
+ nhlog::net()->warn("failed to query device keys: {} {}",
+ err->matrix_error.error,
+ static_cast<int>(err->status_code));
+ return;
+ }
+
+ nhlog::net()->info("queried keys");
+
+ cache::client()->updateUserKeys(cache::nextBatchToken(), res);
+
+ mtx::requests::ClaimKeys claim_keys;
+
+ std::map<std::string, std::map<std::string, DevicePublicKeys>> deviceKeys;
+
+ for (const auto &user : res.device_keys) {
+ for (const auto &dev : user.second) {
+ const auto user_id = ::UserId(dev.second.user_id);
+ const auto device_id = DeviceId(dev.second.device_id);
+
+ if (user_id.get() ==
+ http::client()->user_id().to_string() &&
+ device_id.get() == http::client()->device_id())
+ continue;
+
+ const auto device_keys = dev.second.keys;
+ const auto curveKey = "curve25519:" + device_id.get();
+ const auto edKey = "ed25519:" + device_id.get();
+
+ if ((device_keys.find(curveKey) == device_keys.end()) ||
+ (device_keys.find(edKey) == device_keys.end())) {
+ nhlog::net()->debug(
+ "ignoring malformed keys for device {}",
+ device_id.get());
+ continue;
+ }
+
+ DevicePublicKeys pks;
+ pks.ed25519 = device_keys.at(edKey);
+ pks.curve25519 = device_keys.at(curveKey);
+
+ try {
+ if (!mtx::crypto::verify_identity_signature(
+ dev.second, device_id, user_id)) {
+ nhlog::crypto()->warn(
+ "failed to verify identity keys: {}",
+ json(dev.second).dump(2));
+ continue;
+ }
+ } catch (const json::exception &e) {
+ nhlog::crypto()->warn(
+ "failed to parse device key json: {}",
+ e.what());
+ continue;
+ } catch (const mtx::crypto::olm_exception &e) {
+ nhlog::crypto()->warn(
+ "failed to verify device key json: {}",
+ e.what());
+ continue;
+ }
+
+ deviceKeys[user_id].emplace(device_id, pks);
+ claim_keys.one_time_keys[user.first][device_id] =
+ mtx::crypto::SIGNED_CURVE25519;
+
+ nhlog::net()->info("{}", device_id.get());
+ nhlog::net()->info(" curve25519 {}", pks.curve25519);
+ nhlog::net()->info(" ed25519 {}", pks.ed25519);
+ }
+ }
+
+ http::client()->claim_keys(claim_keys, BindPks(deviceKeys));
+ });
+ }
+}
+
} // namespace olm
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