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-rw-r--r--src/encryption/SelfVerificationStatus.cpp249
1 files changed, 249 insertions, 0 deletions
diff --git a/src/encryption/SelfVerificationStatus.cpp b/src/encryption/SelfVerificationStatus.cpp
new file mode 100644

index 00000000..d75a2109 --- /dev/null +++ b/src/encryption/SelfVerificationStatus.cpp
@@ -0,0 +1,249 @@ +// SPDX-FileCopyrightText: 2021 Nheko Contributors +// +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "SelfVerificationStatus.h" + +#include "Cache_p.h" +#include "Logging.h" +#include "MainWindow.h" +#include "MatrixClient.h" +#include "Olm.h" +#include "ui/UIA.h" + +#include <mtx/responses/common.hpp> + +SelfVerificationStatus::SelfVerificationStatus(QObject *o) + : QObject(o) +{ + connect(MainWindow::instance(), &MainWindow::reload, this, [this] { + connect(cache::client(), + &Cache::selfUnverified, + this, + &SelfVerificationStatus::invalidate, + Qt::UniqueConnection); + invalidate(); + }); +} + +void +SelfVerificationStatus::setupCrosssigning(bool useSSSS, QString password, bool useOnlineKeyBackup) +{ + nhlog::db()->info("Clicked setup crossigning"); + + auto xsign_keys = olm::client()->create_crosssigning_keys(); + + if (!xsign_keys) { + nhlog::crypto()->critical("Failed to setup cross-signing keys!"); + emit setupFailed(tr("Failed to create keys for cross-signing!")); + return; + } + + cache::client()->storeSecret(mtx::secret_storage::secrets::cross_signing_master, + xsign_keys->private_master_key); + cache::client()->storeSecret(mtx::secret_storage::secrets::cross_signing_self_signing, + xsign_keys->private_self_signing_key); + cache::client()->storeSecret(mtx::secret_storage::secrets::cross_signing_user_signing, + xsign_keys->private_user_signing_key); + + std::optional<mtx::crypto::OlmClient::OnlineKeyBackupSetup> okb; + if (useOnlineKeyBackup) { + okb = olm::client()->create_online_key_backup(xsign_keys->private_master_key); + if (!okb) { + nhlog::crypto()->critical("Failed to setup online key backup!"); + emit setupFailed(tr("Failed to create keys for online key backup!")); + return; + } + + cache::client()->storeSecret( + mtx::secret_storage::secrets::megolm_backup_v1, + mtx::crypto::bin2base64(mtx::crypto::to_string(okb->privateKey))); + + http::client()->post_backup_version( + okb->backupVersion.algorithm, + okb->backupVersion.auth_data, + [](const mtx::responses::Version &v, mtx::http::RequestErr e) { + if (e) { + nhlog::net()->error("error setting up online key backup: {} {} {} {}", + e->parse_error, + e->status_code, + e->error_code, + e->matrix_error.error); + } else { + nhlog::crypto()->info("Set up online key backup: '{}'", v.version); + } + }); + } + + std::optional<mtx::crypto::OlmClient::SSSSSetup> ssss; + if (useSSSS) { + ssss = olm::client()->create_ssss_key(password.toStdString()); + if (!ssss) { + nhlog::crypto()->critical("Failed to setup secure server side secret storage!"); + emit setupFailed(tr("Failed to create keys secure server side secret storage!")); + return; + } + + auto master = mtx::crypto::PkSigning::from_seed(xsign_keys->private_master_key); + nlohmann::json j = ssss->keyDescription; + j.erase("signatures"); + ssss->keyDescription + .signatures[http::client()->user_id().to_string()]["ed25519:" + master.public_key()] = + master.sign(j.dump()); + + http::client()->upload_secret_storage_key( + ssss->keyDescription.name, ssss->keyDescription, [](mtx::http::RequestErr) {}); + http::client()->set_secret_storage_default_key(ssss->keyDescription.name, + [](mtx::http::RequestErr) {}); + + auto uploadSecret = [ssss](const std::string &key_name, const std::string &secret) { + mtx::secret_storage::Secret s; + s.encrypted[ssss->keyDescription.name] = + mtx::crypto::encrypt(secret, ssss->privateKey, key_name); + http::client()->upload_secret_storage_secret( + key_name, s, [key_name](mtx::http::RequestErr) { + nhlog::crypto()->info("Uploaded secret: {}", key_name); + }); + }; + + uploadSecret(mtx::secret_storage::secrets::cross_signing_master, + xsign_keys->private_master_key); + uploadSecret(mtx::secret_storage::secrets::cross_signing_self_signing, + xsign_keys->private_self_signing_key); + uploadSecret(mtx::secret_storage::secrets::cross_signing_user_signing, + xsign_keys->private_user_signing_key); + + if (okb) + uploadSecret(mtx::secret_storage::secrets::megolm_backup_v1, + mtx::crypto::bin2base64(mtx::crypto::to_string(okb->privateKey))); + } + + mtx::requests::DeviceSigningUpload device_sign{}; + device_sign.master_key = xsign_keys->master_key; + device_sign.self_signing_key = xsign_keys->self_signing_key; + device_sign.user_signing_key = xsign_keys->user_signing_key; + http::client()->device_signing_upload( + device_sign, + UIA::instance()->genericHandler(tr("Encryption Setup")), + [this, ssss, xsign_keys](mtx::http::RequestErr e) { + if (e) { + nhlog::crypto()->critical("Failed to upload cross signing keys: {}", + e->matrix_error.error); + + emit setupFailed(tr("Encryption setup failed: %1") + .arg(QString::fromStdString(e->matrix_error.error))); + return; + } + nhlog::crypto()->info("Crosssigning keys uploaded!"); + + auto deviceKeys = cache::client()->userKeys(http::client()->user_id().to_string()); + if (deviceKeys) { + auto myKey = deviceKeys->device_keys.at(http::client()->device_id()); + if (myKey.user_id == http::client()->user_id().to_string() && + myKey.device_id == http::client()->device_id() && + myKey.keys["ed25519:" + http::client()->device_id()] == + olm::client()->identity_keys().ed25519 && + myKey.keys["curve25519:" + http::client()->device_id()] == + olm::client()->identity_keys().curve25519) { + json j = myKey; + j.erase("signatures"); + j.erase("unsigned"); + + auto ssk = + mtx::crypto::PkSigning::from_seed(xsign_keys->private_self_signing_key); + myKey.signatures[http::client()->user_id().to_string()] + ["ed25519:" + ssk.public_key()] = ssk.sign(j.dump()); + mtx::requests::KeySignaturesUpload req; + req.signatures[http::client()->user_id().to_string()] + [http::client()->device_id()] = myKey; + + http::client()->keys_signatures_upload( + req, + [](const mtx::responses::KeySignaturesUpload &res, mtx::http::RequestErr err) { + if (err) { + nhlog::net()->error("failed to upload signatures: {},{}", + mtx::errors::to_string(err->matrix_error.errcode), + static_cast<int>(err->status_code)); + } + + for (const auto &[user_id, tmp] : res.errors) + for (const auto &[key_id, e] : tmp) + nhlog::net()->error("signature error for user {} and key " + "id {}: {}, {}", + user_id, + key_id, + mtx::errors::to_string(e.errcode), + e.error); + }); + } + } + + if (ssss) { + auto k = QString::fromStdString(mtx::crypto::key_to_recoverykey(ssss->privateKey)); + + QString r; + for (int i = 0; i < k.size(); i += 4) + r += k.mid(i, 4) + " "; + + emit showRecoveryKey(r.trimmed()); + } else { + emit setupCompleted(); + } + }); +} + +void +SelfVerificationStatus::verifyMasterKey() +{ + nhlog::db()->info("Clicked verify master key"); +} + +void +SelfVerificationStatus::verifyUnverifiedDevices() +{ + nhlog::db()->info("Clicked verify unverified devices"); +} + +void +SelfVerificationStatus::invalidate() +{ + nhlog::db()->info("Invalidating self verification status"); + auto keys = cache::client()->userKeys(http::client()->user_id().to_string()); + if (!keys) { + cache::client()->query_keys(http::client()->user_id().to_string(), + [](const UserKeyCache &, mtx::http::RequestErr) {}); + return; + } + + if (keys->master_keys.keys.empty()) { + if (status_ != SelfVerificationStatus::NoMasterKey) { + this->status_ = SelfVerificationStatus::NoMasterKey; + emit statusChanged(); + } + return; + } + + auto verifStatus = cache::client()->verificationStatus(http::client()->user_id().to_string()); + + if (!verifStatus.user_verified) { + if (status_ != SelfVerificationStatus::UnverifiedMasterKey) { + this->status_ = SelfVerificationStatus::UnverifiedMasterKey; + emit statusChanged(); + } + return; + } + + if (verifStatus.unverified_device_count > 0) { + if (status_ != SelfVerificationStatus::UnverifiedDevices) { + this->status_ = SelfVerificationStatus::UnverifiedDevices; + emit statusChanged(); + } + return; + } + + if (status_ != SelfVerificationStatus::AllVerified) { + this->status_ = SelfVerificationStatus::AllVerified; + emit statusChanged(); + return; + } +}