tdlight/td/telegram/net/PublicRsaKeyShared.cpp
2022-01-01 03:35:39 +03:00

114 lines
3.6 KiB
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/net/PublicRsaKeyShared.h"
#include "td/utils/algorithm.h"
#include "td/utils/format.h"
#include "td/utils/logging.h"
#include "td/utils/Slice.h"
#include "td/utils/SliceBuilder.h"
#include "td/utils/Status.h"
#include <algorithm>
namespace td {
PublicRsaKeyShared::PublicRsaKeyShared(DcId dc_id, bool is_test) : dc_id_(dc_id) {
if (!dc_id_.is_empty()) {
return;
}
auto add_pem = [this](CSlice pem) {
auto r_rsa = mtproto::RSA::from_pem_public_key(pem);
LOG_CHECK(r_rsa.is_ok()) << r_rsa.error() << " " << pem;
if (r_rsa.is_ok()) {
add_rsa(r_rsa.move_as_ok());
}
};
if (is_test) {
add_pem(
"-----BEGIN RSA PUBLIC KEY-----\n"
"MIIBCgKCAQEAyMEdY1aR+sCR3ZSJrtztKTKqigvO/vBfqACJLZtS7QMgCGXJ6XIR\n"
"yy7mx66W0/sOFa7/1mAZtEoIokDP3ShoqF4fVNb6XeqgQfaUHd8wJpDWHcR2OFwv\n"
"plUUI1PLTktZ9uW2WE23b+ixNwJjJGwBDJPQEQFBE+vfmH0JP503wr5INS1poWg/\n"
"j25sIWeYPHYeOrFp/eXaqhISP6G+q2IeTaWTXpwZj4LzXq5YOpk4bYEQ6mvRq7D1\n"
"aHWfYmlEGepfaYR8Q0YqvvhYtMte3ITnuSJs171+GDqpdKcSwHnd6FudwGO4pcCO\n"
"j4WcDuXc2CTHgH8gFTNhp/Y8/SpDOhvn9QIDAQAB\n"
"-----END RSA PUBLIC KEY-----");
return;
}
add_pem(
"-----BEGIN RSA PUBLIC KEY-----\n"
"MIIBCgKCAQEA6LszBcC1LGzyr992NzE0ieY+BSaOW622Aa9Bd4ZHLl+TuFQ4lo4g\n"
"5nKaMBwK/BIb9xUfg0Q29/2mgIR6Zr9krM7HjuIcCzFvDtr+L0GQjae9H0pRB2OO\n"
"62cECs5HKhT5DZ98K33vmWiLowc621dQuwKWSQKjWf50XYFw42h21P2KXUGyp2y/\n"
"+aEyZ+uVgLLQbRA1dEjSDZ2iGRy12Mk5gpYc397aYp438fsJoHIgJ2lgMv5h7WY9\n"
"t6N/byY9Nw9p21Og3AoXSL2q/2IJ1WRUhebgAdGVMlV1fkuOQoEzR7EdpqtQD9Cs\n"
"5+bfo3Nhmcyvk5ftB0WkJ9z6bNZ7yxrP8wIDAQAB\n"
"-----END RSA PUBLIC KEY-----");
}
void PublicRsaKeyShared::add_rsa(mtproto::RSA rsa) {
auto lock = rw_mutex_.lock_write();
auto fingerprint = rsa.get_fingerprint();
if (get_rsa_key_unsafe(fingerprint) != nullptr) {
return;
}
keys_.push_back(RsaKey{std::move(rsa), fingerprint});
}
Result<mtproto::PublicRsaKeyInterface::RsaKey> PublicRsaKeyShared::get_rsa_key(const vector<int64> &fingerprints) {
auto lock = rw_mutex_.lock_read();
for (auto fingerprint : fingerprints) {
auto *rsa_key = get_rsa_key_unsafe(fingerprint);
if (rsa_key != nullptr) {
return RsaKey{rsa_key->rsa.clone(), fingerprint};
}
}
return Status::Error(PSLICE() << "Unknown fingerprints " << format::as_array(fingerprints));
}
void PublicRsaKeyShared::drop_keys() {
if (dc_id_.is_empty()) {
// not CDN
return;
}
auto lock = rw_mutex_.lock_write();
LOG(INFO) << "Drop " << keys_.size() << " keys for " << dc_id_;
keys_.clear();
notify();
}
bool PublicRsaKeyShared::has_keys() {
auto lock = rw_mutex_.lock_read();
return !keys_.empty();
}
void PublicRsaKeyShared::add_listener(unique_ptr<Listener> listener) {
if (listener->notify()) {
auto lock = rw_mutex_.lock_write();
listeners_.push_back(std::move(listener));
}
}
mtproto::PublicRsaKeyInterface::RsaKey *PublicRsaKeyShared::get_rsa_key_unsafe(int64 fingerprint) {
auto it = std::find_if(keys_.begin(), keys_.end(),
[fingerprint](const auto &value) { return value.fingerprint == fingerprint; });
if (it == keys_.end()) {
return nullptr;
}
return &*it;
}
void PublicRsaKeyShared::notify() {
td::remove_if(listeners_, [&](auto &listener) { return !listener->notify(); });
}
} // namespace td