mirror of
https://github.com/Nheko-Reborn/nheko.git
synced 2024-11-22 03:00:46 +03:00
Store secrets (apart from the pickle key) in the database
This commit is contained in:
Nicolas Werner
parent
1f77e1c810
commit
537fa437e2
4 changed files with 106 additions and 57 deletions
127
src/Cache.cpp
127
src/Cache.cpp
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@ -39,7 +39,7 @@
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//! Should be changed when a breaking change occurs in the cache format.
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//! This will reset client's data.
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static const std::string CURRENT_CACHE_FORMAT_VERSION{"2022.04.08"};
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static const std::string CURRENT_CACHE_FORMAT_VERSION{"2022.11.06"};
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//! Keys used for the DB
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static const std::string_view NEXT_BATCH_KEY("next_batch");
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@ -340,13 +340,13 @@ Cache::setup()
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txn.commit();
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loadSecrets({
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{mtx::secret_storage::secrets::cross_signing_master, false},
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{mtx::secret_storage::secrets::cross_signing_self_signing, false},
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{mtx::secret_storage::secrets::cross_signing_user_signing, false},
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{mtx::secret_storage::secrets::megolm_backup_v1, false},
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{"pickle_secret", true},
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});
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loadSecretsFromStore(
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{
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{"pickle_secret", true},
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},
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[this](const std::string &, bool, const std::string &value) {
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this->pickle_secret_ = value;
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});
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}
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static void
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@ -380,7 +380,9 @@ secretName(std::string name, bool internal)
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}
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void
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Cache::loadSecrets(std::vector<std::pair<std::string, bool>> toLoad)
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Cache::loadSecretsFromStore(
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std::vector<std::pair<std::string, bool>> toLoad,
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std::function<void(const std::string &name, bool internal, const std::string &value)> callback)
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{
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auto settings = UserSettings::instance()->qsettings();
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@ -398,12 +400,11 @@ Cache::loadSecrets(std::vector<std::pair<std::string, bool>> toLoad)
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if (value.isEmpty()) {
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nhlog::db()->info("Restored empty secret '{}'.", name.toStdString());
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} else {
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std::unique_lock lock(secret_storage.mtx);
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secret_storage.secrets[name.toStdString()] = value.toStdString();
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callback(name_, internal, value.toStdString());
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}
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}
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// if we emit the databaseReady signal directly it won't be received
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QTimer::singleShot(0, this, [this] { loadSecrets({}); });
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QTimer::singleShot(0, this, [this, callback] { loadSecretsFromStore({}, callback); });
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return;
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}
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@ -419,7 +420,7 @@ Cache::loadSecrets(std::vector<std::pair<std::string, bool>> toLoad)
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connect(job,
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&QKeychain::ReadPasswordJob::finished,
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this,
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[this, name, toLoad, job](QKeychain::Job *) mutable {
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[this, name, toLoad, job, name_, internal, callback](QKeychain::Job *) mutable {
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nhlog::db()->debug("Finished reading '{}'", toLoad.begin()->first);
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const QString secret = job->textData();
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if (job->error() && job->error() != QKeychain::Error::EntryNotFound) {
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@ -433,40 +434,72 @@ Cache::loadSecrets(std::vector<std::pair<std::string, bool>> toLoad)
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if (secret.isEmpty()) {
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nhlog::db()->debug("Restored empty secret '{}'.", name.toStdString());
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} else {
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std::unique_lock lock(secret_storage.mtx);
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secret_storage.secrets[name.toStdString()] = secret.toStdString();
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callback(name_, internal, secret.toStdString());
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}
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// load next secret
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toLoad.erase(toLoad.begin());
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// You can't start a job from the finish signal of a job.
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QTimer::singleShot(0, this, [this, toLoad] { loadSecrets(toLoad); });
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QTimer::singleShot(
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0, this, [this, toLoad, callback] { loadSecretsFromStore(toLoad, callback); });
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});
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nhlog::db()->debug("Reading '{}'", name_);
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job->start();
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}
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std::optional<std::string>
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Cache::secret(const std::string name_, bool internal)
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Cache::secret(const std::string &name_, bool internal)
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{
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auto name = secretName(name_, internal);
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std::unique_lock lock(secret_storage.mtx);
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if (auto secret = secret_storage.secrets.find(name.toStdString());
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secret != secret_storage.secrets.end())
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return secret->second;
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else
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auto txn = ro_txn(env_);
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std::string_view value;
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auto db_name = "secret." + name.toStdString();
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if (!syncStateDb_.get(txn, db_name, value))
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return std::nullopt;
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mtx::secret_storage::AesHmacSha2EncryptedData data = nlohmann::json::parse(value);
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auto decrypted = mtx::crypto::decrypt(data, mtx::crypto::to_binary_buf(pickle_secret_), name_);
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if (decrypted.empty())
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return std::nullopt;
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else
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return decrypted;
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}
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void
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Cache::storeSecret(const std::string name_, const std::string secret, bool internal)
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Cache::storeSecret(const std::string &name_, const std::string &secret, bool internal)
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{
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auto name = secretName(name_, internal);
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{
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std::unique_lock lock(secret_storage.mtx);
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secret_storage.secrets[name.toStdString()] = secret;
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}
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auto txn = lmdb::txn::begin(env_);
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auto encrypted =
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mtx::crypto::encrypt(secret, mtx::crypto::to_binary_buf(pickle_secret_), name_);
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auto db_name = "secret." + name.toStdString();
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syncStateDb_.put(txn, db_name, nlohmann::json(encrypted).dump());
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txn.commit();
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emit secretChanged(name_);
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}
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void
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Cache::deleteSecret(const std::string &name_, bool internal)
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{
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auto name = secretName(name_, internal);
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auto txn = lmdb::txn::begin(env_);
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std::string_view value;
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auto db_name = "secret." + name.toStdString();
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syncStateDb_.del(txn, db_name, value);
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txn.commit();
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}
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void
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Cache::storeSecretInStore(const std::string name_, const std::string secret)
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{
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auto name = secretName(name_, true);
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auto settings = UserSettings::instance()->qsettings();
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if (settings->value(QStringLiteral("run_without_secure_secrets_service"), false).toBool()) {
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@ -507,13 +540,9 @@ Cache::storeSecret(const std::string name_, const std::string secret, bool inter
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}
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void
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Cache::deleteSecret(const std::string name, bool internal)
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Cache::deleteSecretFromStore(const std::string name, bool internal)
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{
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auto name_ = secretName(name, internal);
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{
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std::unique_lock lock(secret_storage.mtx);
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secret_storage.secrets.erase(name_.toStdString());
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}
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auto settings = UserSettings::instance()->qsettings();
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if (settings->value(QStringLiteral("run_without_secure_secrets_service"), false).toBool()) {
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@ -539,13 +568,8 @@ std::string
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Cache::pickleSecret()
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{
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if (pickle_secret_.empty()) {
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auto s = secret("pickle_secret", true);
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if (!s) {
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this->pickle_secret_ = mtx::client::utils::random_token(64, true);
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storeSecret("pickle_secret", pickle_secret_, true);
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} else {
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this->pickle_secret_ = *s;
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}
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this->pickle_secret_ = mtx::client::utils::random_token(64, true);
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storeSecretInStore("pickle_secret", pickle_secret_);
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}
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return pickle_secret_;
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@ -1179,11 +1203,7 @@ Cache::deleteData()
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nhlog::db()->info("deleted cache files from disk");
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}
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deleteSecret(mtx::secret_storage::secrets::megolm_backup_v1);
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deleteSecret(mtx::secret_storage::secrets::cross_signing_master);
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deleteSecret(mtx::secret_storage::secrets::cross_signing_user_signing);
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deleteSecret(mtx::secret_storage::secrets::cross_signing_self_signing);
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deleteSecret("pickle_secret", true);
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deleteSecretFromStore("pickle_secret", true);
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}
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}
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@ -1392,7 +1412,8 @@ Cache::runMigrations()
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}},
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{"2021.08.31",
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[this]() {
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storeSecret("pickle_secret", "secret", true);
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storeSecretInStore("pickle_secret", "secret");
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this->pickle_secret_ = "secret";
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return true;
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}},
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{"2022.04.08",
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@ -1448,6 +1469,22 @@ Cache::runMigrations()
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return false;
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}
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}},
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{"2022.11.06",
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[this]() {
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loadSecretsFromStore(
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{
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{mtx::secret_storage::secrets::cross_signing_master, false},
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{mtx::secret_storage::secrets::cross_signing_self_signing, false},
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{mtx::secret_storage::secrets::cross_signing_user_signing, false},
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{mtx::secret_storage::secrets::megolm_backup_v1, false},
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},
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[this](const std::string &name, bool internal, const std::string &value) {
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this->storeSecret(name, value, internal);
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QTimer::singleShot(
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0, this, [this, name, internal] { deleteSecretFromStore(name, internal); });
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});
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return true;
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}},
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};
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nhlog::db()->info("Running migrations, this may take a while!");
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@ -291,9 +291,9 @@ public:
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void deleteBackupVersion();
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std::optional<OnlineBackupVersion> backupVersion();
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void storeSecret(const std::string name, const std::string secret, bool internal = false);
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void deleteSecret(const std::string name, bool internal = false);
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std::optional<std::string> secret(const std::string name, bool internal = false);
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void storeSecret(const std::string &name, const std::string &secret, bool internal = false);
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void deleteSecret(const std::string &name, bool internal = false);
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std::optional<std::string> secret(const std::string &name, bool internal = false);
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std::string pickleSecret();
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@ -324,7 +324,12 @@ signals:
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void databaseReady();
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private:
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void loadSecrets(std::vector<std::pair<std::string, bool>> toLoad);
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void loadSecretsFromStore(
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std::vector<std::pair<std::string, bool>> toLoad,
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std::function<void(const std::string &name, bool internal, const std::string &value)>
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callback);
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void storeSecretInStore(const std::string name, const std::string secret);
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void deleteSecretFromStore(const std::string name, bool internal);
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//! Save an invited room.
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void saveInvite(lmdb::txn &txn,
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@ -685,7 +690,6 @@ private:
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std::string pickle_secret_;
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VerificationStorage verification_storage;
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SecretsStorage secret_storage;
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bool databaseReady_ = false;
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};
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@ -384,7 +384,8 @@ ChatPage::dropToLoginPage(const QString &msg)
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tr("Because of the following reason Nheko wants to drop you to the login page:\n%1\nIf you "
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"think this is a mistake, you can close Nheko instead to possibly recover your encrpytion "
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"keys. After you have been dropped to the login page, you can sign in again using your "
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"usual methods."),
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"usual methods.")
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.arg(msg),
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QMessageBox::StandardButton::Close | QMessageBox::StandardButton::Ok,
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QMessageBox::StandardButton::Ok);
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if (btn == QMessageBox::StandardButton::Close) {
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@ -6,6 +6,7 @@
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#include "Olm.h"
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#include <QObject>
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#include <QRandomGenerator>
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#include <QTimer>
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#include <nlohmann/json.hpp>
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@ -98,13 +99,19 @@ handle_secret_request(const mtx::events::DeviceEvent<mtx::events::msg::SecretReq
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return;
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secretSend.content.secret = secret.value();
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send_encrypted_to_device_messages(
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{{local_user.to_string(), {{e->content.requesting_device_id}}}}, secretSend);
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// Randomly delay reply to workaround olm session generation races
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QTimer::singleShot(QRandomGenerator::global()->bounded(0, 3000),
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ChatPage::instance(),
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[local_user, e = *e, secretSend] {
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send_encrypted_to_device_messages(
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{{local_user.to_string(), {{e.content.requesting_device_id}}}},
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secretSend);
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nhlog::net()->info("Sent secret '{}' to ({},{})",
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e->content.name,
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local_user.to_string(),
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e->content.requesting_device_id);
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nhlog::net()->info("Sent secret '{}' to ({},{})",
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e.content.name,
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local_user.to_string(),
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e.content.requesting_device_id);
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});
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}
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void
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