Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1 | /* |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 2 | * Copyright (C) 2004-2023 Savoir-faire Linux Inc. |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 3 | * |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 4 | * This program is free software: you can redistribute it and/or modify |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 5 | * it under the terms of the GNU General Public License as published by |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 6 | * the Free Software Foundation, either version 3 of the License, or |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | #include "connectionmanager.h" |
| 18 | #include "peer_connection.h" |
| 19 | #include "upnp/upnp_control.h" |
| 20 | #include "certstore.h" |
| 21 | #include "fileutils.h" |
| 22 | #include "sip_utils.h" |
| 23 | #include "string_utils.h" |
| 24 | |
| 25 | #include <opendht/crypto.h> |
| 26 | #include <opendht/thread_pool.h> |
| 27 | #include <opendht/value.h> |
| 28 | #include <asio.hpp> |
| 29 | |
| 30 | #include <algorithm> |
| 31 | #include <mutex> |
| 32 | #include <map> |
| 33 | #include <condition_variable> |
| 34 | #include <set> |
| 35 | #include <charconv> |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 36 | #include <fstream> |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 37 | |
Adrien Béraud | 1ae60aa | 2023-07-07 09:55:09 -0400 | [diff] [blame] | 38 | namespace dhtnet { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 39 | static constexpr std::chrono::seconds DHT_MSG_TIMEOUT {30}; |
| 40 | static constexpr uint64_t ID_MAX_VAL = 9007199254740992; |
| 41 | |
| 42 | using ValueIdDist = std::uniform_int_distribution<dht::Value::Id>; |
Adrien Béraud | 1ae60aa | 2023-07-07 09:55:09 -0400 | [diff] [blame] | 43 | using CallbackId = std::pair<dhtnet::DeviceId, dht::Value::Id>; |
Amna | 31791e5 | 2023-08-03 12:40:57 -0400 | [diff] [blame] | 44 | std::string |
| 45 | callbackIdToString(const dhtnet::DeviceId& did, const dht::Value::Id& vid) |
| 46 | { |
| 47 | return fmt::format("{} {}", did.to_view(), vid); |
| 48 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 49 | |
Amna | 31791e5 | 2023-08-03 12:40:57 -0400 | [diff] [blame] | 50 | CallbackId parseCallbackId(std::string_view ci) |
| 51 | { |
| 52 | auto sep = ci.find(' '); |
| 53 | std::string_view deviceIdString = ci.substr(0, sep); |
| 54 | std::string_view vidString = ci.substr(sep + 1); |
| 55 | |
| 56 | dhtnet::DeviceId deviceId(deviceIdString); |
| 57 | dht::Value::Id vid = std::stoul(std::string(vidString), nullptr, 10); |
| 58 | |
| 59 | return CallbackId(deviceId, vid); |
| 60 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 61 | struct ConnectionInfo |
| 62 | { |
| 63 | ~ConnectionInfo() |
| 64 | { |
| 65 | if (socket_) |
| 66 | socket_->join(); |
| 67 | } |
| 68 | |
| 69 | std::mutex mutex_ {}; |
| 70 | bool responseReceived_ {false}; |
| 71 | PeerConnectionRequest response_ {}; |
| 72 | std::unique_ptr<IceTransport> ice_ {nullptr}; |
| 73 | // Used to store currently non ready TLS Socket |
| 74 | std::unique_ptr<TlsSocketEndpoint> tls_ {nullptr}; |
| 75 | std::shared_ptr<MultiplexedSocket> socket_ {}; |
| 76 | std::set<CallbackId> cbIds_ {}; |
| 77 | |
| 78 | std::function<void(bool)> onConnected_; |
| 79 | std::unique_ptr<asio::steady_timer> waitForAnswer_ {}; |
| 80 | }; |
| 81 | |
| 82 | /** |
| 83 | * returns whether or not UPnP is enabled and active_ |
| 84 | * ie: if it is able to make port mappings |
| 85 | */ |
| 86 | bool |
| 87 | ConnectionManager::Config::getUPnPActive() const |
| 88 | { |
| 89 | if (upnpCtrl) |
| 90 | return upnpCtrl->isReady(); |
| 91 | return false; |
| 92 | } |
| 93 | |
| 94 | class ConnectionManager::Impl : public std::enable_shared_from_this<ConnectionManager::Impl> |
| 95 | { |
| 96 | public: |
| 97 | explicit Impl(std::shared_ptr<ConnectionManager::Config> config_) |
| 98 | : config_ {std::move(config_)} |
Sébastien Blin | cf56940 | 2023-07-27 09:46:40 -0400 | [diff] [blame] | 99 | , rand {dht::crypto::getSeededRandomEngine<std::mt19937_64>()} |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 100 | {} |
| 101 | ~Impl() {} |
| 102 | |
| 103 | std::shared_ptr<dht::DhtRunner> dht() { return config_->dht; } |
| 104 | const dht::crypto::Identity& identity() const { return config_->id; } |
| 105 | |
| 106 | void removeUnusedConnections(const DeviceId& deviceId = {}) |
| 107 | { |
| 108 | std::vector<std::shared_ptr<ConnectionInfo>> unused {}; |
| 109 | |
| 110 | { |
| 111 | std::lock_guard<std::mutex> lk(infosMtx_); |
| 112 | for (auto it = infos_.begin(); it != infos_.end();) { |
| 113 | auto& [key, info] = *it; |
| 114 | if (info && (!deviceId || key.first == deviceId)) { |
| 115 | unused.emplace_back(std::move(info)); |
| 116 | it = infos_.erase(it); |
| 117 | } else { |
| 118 | ++it; |
| 119 | } |
| 120 | } |
| 121 | } |
| 122 | for (auto& info: unused) { |
| 123 | if (info->tls_) |
| 124 | info->tls_->shutdown(); |
| 125 | if (info->socket_) |
| 126 | info->socket_->shutdown(); |
| 127 | if (info->waitForAnswer_) |
| 128 | info->waitForAnswer_->cancel(); |
| 129 | } |
| 130 | if (!unused.empty()) |
| 131 | dht::ThreadPool::io().run([infos = std::move(unused)]() mutable { infos.clear(); }); |
| 132 | } |
| 133 | |
| 134 | void shutdown() |
| 135 | { |
| 136 | if (isDestroying_.exchange(true)) |
| 137 | return; |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 138 | decltype(pendingOperations_) po; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 139 | { |
| 140 | std::lock_guard<std::mutex> lk(connectCbsMtx_); |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 141 | po = std::move(pendingOperations_); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 142 | } |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 143 | for (auto& [deviceId, pcbs] : po) { |
| 144 | for (auto& [id, pending] : pcbs.connecting) |
| 145 | pending.cb(nullptr, deviceId); |
| 146 | for (auto& [id, pending] : pcbs.waiting) |
| 147 | pending.cb(nullptr, deviceId); |
| 148 | } |
| 149 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 150 | removeUnusedConnections(); |
| 151 | } |
| 152 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 153 | void connectDeviceStartIce(const std::shared_ptr<dht::crypto::PublicKey>& devicePk, |
| 154 | const dht::Value::Id& vid, |
| 155 | const std::string& connType, |
| 156 | std::function<void(bool)> onConnected); |
| 157 | void onResponse(const asio::error_code& ec, const DeviceId& deviceId, const dht::Value::Id& vid); |
| 158 | bool connectDeviceOnNegoDone(const DeviceId& deviceId, |
| 159 | const std::string& name, |
| 160 | const dht::Value::Id& vid, |
| 161 | const std::shared_ptr<dht::crypto::Certificate>& cert); |
| 162 | void connectDevice(const DeviceId& deviceId, |
| 163 | const std::string& uri, |
| 164 | ConnectCallback cb, |
| 165 | bool noNewSocket = false, |
| 166 | bool forceNewSocket = false, |
| 167 | const std::string& connType = ""); |
Amna | 0cf544d | 2023-07-25 14:25:09 -0400 | [diff] [blame] | 168 | void connectDevice(const dht::InfoHash& deviceId, |
| 169 | const std::string& uri, |
| 170 | ConnectCallbackLegacy cb, |
| 171 | bool noNewSocket = false, |
| 172 | bool forceNewSocket = false, |
| 173 | const std::string& connType = ""); |
| 174 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 175 | void connectDevice(const std::shared_ptr<dht::crypto::Certificate>& cert, |
| 176 | const std::string& name, |
| 177 | ConnectCallback cb, |
| 178 | bool noNewSocket = false, |
| 179 | bool forceNewSocket = false, |
| 180 | const std::string& connType = ""); |
| 181 | /** |
| 182 | * Send a ChannelRequest on the TLS socket. Triggers cb when ready |
| 183 | * @param sock socket used to send the request |
| 184 | * @param name channel's name |
| 185 | * @param vid channel's id |
| 186 | * @param deviceId to identify the linked ConnectCallback |
| 187 | */ |
| 188 | void sendChannelRequest(std::shared_ptr<MultiplexedSocket>& sock, |
| 189 | const std::string& name, |
| 190 | const DeviceId& deviceId, |
| 191 | const dht::Value::Id& vid); |
| 192 | /** |
| 193 | * Triggered when a PeerConnectionRequest comes from the DHT |
| 194 | */ |
| 195 | void answerTo(IceTransport& ice, |
| 196 | const dht::Value::Id& id, |
| 197 | const std::shared_ptr<dht::crypto::PublicKey>& fromPk); |
| 198 | bool onRequestStartIce(const PeerConnectionRequest& req); |
| 199 | bool onRequestOnNegoDone(const PeerConnectionRequest& req); |
| 200 | void onDhtPeerRequest(const PeerConnectionRequest& req, |
| 201 | const std::shared_ptr<dht::crypto::Certificate>& cert); |
| 202 | |
| 203 | void addNewMultiplexedSocket(const CallbackId& id, const std::shared_ptr<ConnectionInfo>& info); |
| 204 | void onPeerResponse(const PeerConnectionRequest& req); |
| 205 | void onDhtConnected(const dht::crypto::PublicKey& devicePk); |
| 206 | |
| 207 | const std::shared_future<tls::DhParams> dhParams() const; |
| 208 | tls::CertificateStore& certStore() const { return *config_->certStore; } |
| 209 | |
| 210 | mutable std::mutex messageMutex_ {}; |
| 211 | std::set<std::string, std::less<>> treatedMessages_ {}; |
| 212 | |
| 213 | void loadTreatedMessages(); |
| 214 | void saveTreatedMessages() const; |
| 215 | |
| 216 | /// \return true if the given DHT message identifier has been treated |
| 217 | /// \note if message has not been treated yet this method st/ore this id and returns true at |
| 218 | /// further calls |
| 219 | bool isMessageTreated(std::string_view id); |
| 220 | |
| 221 | const std::shared_ptr<dht::log::Logger>& logger() const { return config_->logger; } |
| 222 | |
| 223 | /** |
| 224 | * Published IPv4/IPv6 addresses, used only if defined by the user in account |
| 225 | * configuration |
| 226 | * |
| 227 | */ |
| 228 | IpAddr publishedIp_[2] {}; |
| 229 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 230 | /** |
| 231 | * interface name on which this account is bound |
| 232 | */ |
| 233 | std::string interface_ {"default"}; |
| 234 | |
| 235 | /** |
| 236 | * Get the local interface name on which this account is bound. |
| 237 | */ |
| 238 | const std::string& getLocalInterface() const { return interface_; } |
| 239 | |
| 240 | /** |
| 241 | * Get the published IP address, fallbacks to NAT if family is unspecified |
| 242 | * Prefers the usage of IPv4 if possible. |
| 243 | */ |
| 244 | IpAddr getPublishedIpAddress(uint16_t family = PF_UNSPEC) const; |
| 245 | |
| 246 | /** |
| 247 | * Set published IP address according to given family |
| 248 | */ |
| 249 | void setPublishedAddress(const IpAddr& ip_addr); |
| 250 | |
| 251 | /** |
| 252 | * Store the local/public addresses used to register |
| 253 | */ |
| 254 | void storeActiveIpAddress(std::function<void()>&& cb = {}); |
| 255 | |
| 256 | /** |
| 257 | * Create and return ICE options. |
| 258 | */ |
| 259 | void getIceOptions(std::function<void(IceTransportOptions&&)> cb) noexcept; |
| 260 | IceTransportOptions getIceOptions() const noexcept; |
| 261 | |
| 262 | /** |
| 263 | * Inform that a potential peer device have been found. |
| 264 | * Returns true only if the device certificate is a valid device certificate. |
| 265 | * In that case (true is returned) the account_id parameter is set to the peer account ID. |
| 266 | */ |
| 267 | static bool foundPeerDevice(const std::shared_ptr<dht::crypto::Certificate>& crt, |
| 268 | dht::InfoHash& account_id, const std::shared_ptr<Logger>& logger); |
| 269 | |
| 270 | bool findCertificate(const dht::PkId& id, |
| 271 | std::function<void(const std::shared_ptr<dht::crypto::Certificate>&)>&& cb); |
Sébastien Blin | 3408651 | 2023-07-25 09:52:14 -0400 | [diff] [blame] | 272 | bool findCertificate(const dht::InfoHash& h, std::function<void(const std::shared_ptr<dht::crypto::Certificate>&)>&& cb); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 273 | |
| 274 | /** |
| 275 | * returns whether or not UPnP is enabled and active |
| 276 | * ie: if it is able to make port mappings |
| 277 | */ |
| 278 | bool getUPnPActive() const; |
| 279 | |
| 280 | /** |
| 281 | * Triggered when a new TLS socket is ready to use |
| 282 | * @param ok If succeed |
| 283 | * @param deviceId Related device |
| 284 | * @param vid vid of the connection request |
| 285 | * @param name non empty if TLS was created by connectDevice() |
| 286 | */ |
| 287 | void onTlsNegotiationDone(bool ok, |
| 288 | const DeviceId& deviceId, |
| 289 | const dht::Value::Id& vid, |
| 290 | const std::string& name = ""); |
| 291 | |
| 292 | std::shared_ptr<ConnectionManager::Config> config_; |
| 293 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 294 | mutable std::mt19937_64 rand; |
| 295 | |
| 296 | iOSConnectedCallback iOSConnectedCb_ {}; |
| 297 | |
| 298 | std::mutex infosMtx_ {}; |
| 299 | // Note: Someone can ask multiple sockets, so to avoid any race condition, |
| 300 | // each device can have multiple multiplexed sockets. |
| 301 | std::map<CallbackId, std::shared_ptr<ConnectionInfo>> infos_ {}; |
| 302 | |
| 303 | std::shared_ptr<ConnectionInfo> getInfo(const DeviceId& deviceId, const dht::Value::Id& id) |
| 304 | { |
| 305 | std::lock_guard<std::mutex> lk(infosMtx_); |
| 306 | auto it = infos_.find({deviceId, id}); |
| 307 | if (it != infos_.end()) |
| 308 | return it->second; |
| 309 | return {}; |
| 310 | } |
| 311 | |
| 312 | std::shared_ptr<ConnectionInfo> getConnectedInfo(const DeviceId& deviceId) |
| 313 | { |
| 314 | std::lock_guard<std::mutex> lk(infosMtx_); |
| 315 | auto it = std::find_if(infos_.begin(), infos_.end(), [&](const auto& item) { |
| 316 | auto& [key, value] = item; |
| 317 | return key.first == deviceId && value && value->socket_; |
| 318 | }); |
| 319 | if (it != infos_.end()) |
| 320 | return it->second; |
| 321 | return {}; |
| 322 | } |
| 323 | |
| 324 | ChannelRequestCallback channelReqCb_ {}; |
| 325 | ConnectionReadyCallback connReadyCb_ {}; |
| 326 | onICERequestCallback iceReqCb_ {}; |
| 327 | |
| 328 | /** |
| 329 | * Stores callback from connectDevice |
| 330 | * @note: each device needs a vector because several connectDevice can |
| 331 | * be done in parallel and we only want one socket |
| 332 | */ |
| 333 | std::mutex connectCbsMtx_ {}; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 334 | |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 335 | struct PendingCb |
| 336 | { |
| 337 | std::string name; |
| 338 | ConnectCallback cb; |
| 339 | }; |
| 340 | struct PendingOperations { |
| 341 | std::map<dht::Value::Id, PendingCb> connecting; |
| 342 | std::map<dht::Value::Id, PendingCb> waiting; |
| 343 | }; |
| 344 | |
| 345 | std::map<DeviceId, PendingOperations> pendingOperations_ {}; |
| 346 | |
Adrien Béraud | 7e8b056 | 2023-06-13 18:10:53 -0400 | [diff] [blame] | 347 | void executePendingOperations(const DeviceId& deviceId, const dht::Value::Id& vid, const std::shared_ptr<ChannelSocket>& sock, bool accepted = true) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 348 | { |
| 349 | std::vector<PendingCb> ret; |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 350 | std::unique_lock<std::mutex> lk(connectCbsMtx_); |
| 351 | auto it = pendingOperations_.find(deviceId); |
| 352 | if (it == pendingOperations_.end()) |
| 353 | return; |
| 354 | auto& pendingOperations = it->second; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 355 | if (vid == 0) { |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 356 | // Extract all pending callbacks |
| 357 | for (auto& [vid, cb] : pendingOperations.connecting) |
| 358 | ret.emplace_back(std::move(cb)); |
| 359 | pendingOperations.connecting.clear(); |
| 360 | for (auto& [vid, cb] : pendingOperations.waiting) |
| 361 | ret.emplace_back(std::move(cb)); |
| 362 | pendingOperations.waiting.clear(); |
| 363 | } else if (auto n = pendingOperations.waiting.extract(vid)) { |
| 364 | // If it's a waiting operation, just move it |
| 365 | ret.emplace_back(std::move(n.mapped())); |
| 366 | } else if (auto n = pendingOperations.connecting.extract(vid)) { |
| 367 | ret.emplace_back(std::move(n.mapped())); |
| 368 | // If sock is nullptr, execute if it's the last connecting operation |
Adrien Béraud | 7e8b056 | 2023-06-13 18:10:53 -0400 | [diff] [blame] | 369 | // If accepted is false, it means that underlying socket is ok, but channel is declined |
| 370 | if (!sock && pendingOperations.connecting.empty() && accepted) { |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 371 | for (auto& [vid, cb] : pendingOperations.waiting) |
| 372 | ret.emplace_back(std::move(cb)); |
| 373 | pendingOperations.waiting.clear(); |
| 374 | for (auto& [vid, cb] : pendingOperations.connecting) |
| 375 | ret.emplace_back(std::move(cb)); |
| 376 | pendingOperations.connecting.clear(); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 377 | } |
| 378 | } |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 379 | if (pendingOperations.waiting.empty() && pendingOperations.connecting.empty()) |
| 380 | pendingOperations_.erase(it); |
| 381 | lk.unlock(); |
| 382 | for (auto& cb : ret) |
| 383 | cb.cb(sock, deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 384 | } |
| 385 | |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 386 | std::map<dht::Value::Id, std::string> getPendingIds(const DeviceId& deviceId, const dht::Value::Id vid = 0) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 387 | { |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 388 | std::map<dht::Value::Id, std::string> ret; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 389 | std::lock_guard<std::mutex> lk(connectCbsMtx_); |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 390 | auto it = pendingOperations_.find(deviceId); |
| 391 | if (it == pendingOperations_.end()) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 392 | return ret; |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 393 | auto& pendingOp = it->second; |
| 394 | for (const auto& [id, pc]: pendingOp.connecting) { |
| 395 | if (vid == 0 || id == vid) |
| 396 | ret[id] = pc.name; |
| 397 | } |
| 398 | for (const auto& [id, pc]: pendingOp.waiting) { |
| 399 | if (vid == 0 || id == vid) |
| 400 | ret[id] = pc.name; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 401 | } |
| 402 | return ret; |
| 403 | } |
| 404 | |
| 405 | std::shared_ptr<ConnectionManager::Impl> shared() |
| 406 | { |
| 407 | return std::static_pointer_cast<ConnectionManager::Impl>(shared_from_this()); |
| 408 | } |
| 409 | std::shared_ptr<ConnectionManager::Impl const> shared() const |
| 410 | { |
| 411 | return std::static_pointer_cast<ConnectionManager::Impl const>(shared_from_this()); |
| 412 | } |
| 413 | std::weak_ptr<ConnectionManager::Impl> weak() |
| 414 | { |
| 415 | return std::static_pointer_cast<ConnectionManager::Impl>(shared_from_this()); |
| 416 | } |
| 417 | std::weak_ptr<ConnectionManager::Impl const> weak() const |
| 418 | { |
| 419 | return std::static_pointer_cast<ConnectionManager::Impl const>(shared_from_this()); |
| 420 | } |
| 421 | |
| 422 | std::atomic_bool isDestroying_ {false}; |
| 423 | }; |
| 424 | |
| 425 | void |
| 426 | ConnectionManager::Impl::connectDeviceStartIce( |
| 427 | const std::shared_ptr<dht::crypto::PublicKey>& devicePk, |
| 428 | const dht::Value::Id& vid, |
| 429 | const std::string& connType, |
| 430 | std::function<void(bool)> onConnected) |
| 431 | { |
| 432 | auto deviceId = devicePk->getLongId(); |
| 433 | auto info = getInfo(deviceId, vid); |
| 434 | if (!info) { |
| 435 | onConnected(false); |
| 436 | return; |
| 437 | } |
| 438 | |
| 439 | std::unique_lock<std::mutex> lk(info->mutex_); |
| 440 | auto& ice = info->ice_; |
| 441 | |
| 442 | if (!ice) { |
| 443 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 444 | config_->logger->error("[device {}] No ICE detected", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 445 | onConnected(false); |
| 446 | return; |
| 447 | } |
| 448 | |
| 449 | auto iceAttributes = ice->getLocalAttributes(); |
| 450 | std::ostringstream icemsg; |
| 451 | icemsg << iceAttributes.ufrag << "\n"; |
| 452 | icemsg << iceAttributes.pwd << "\n"; |
| 453 | for (const auto& addr : ice->getLocalCandidates(1)) { |
| 454 | icemsg << addr << "\n"; |
| 455 | if (config_->logger) |
Sébastien Blin | aec46fc | 2023-07-25 15:43:10 -0400 | [diff] [blame] | 456 | config_->logger->debug("[device {}] Added local ICE candidate {}", deviceId, addr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | // Prepare connection request as a DHT message |
| 460 | PeerConnectionRequest val; |
| 461 | |
| 462 | val.id = vid; /* Random id for the message unicity */ |
| 463 | val.ice_msg = icemsg.str(); |
| 464 | val.connType = connType; |
| 465 | |
| 466 | auto value = std::make_shared<dht::Value>(std::move(val)); |
| 467 | value->user_type = "peer_request"; |
| 468 | |
| 469 | // Send connection request through DHT |
| 470 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 471 | config_->logger->debug("[device {}] Sending connection request", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 472 | dht()->putEncrypted(dht::InfoHash::get(PeerConnectionRequest::key_prefix |
| 473 | + devicePk->getId().toString()), |
| 474 | devicePk, |
| 475 | value, |
| 476 | [l=config_->logger,deviceId](bool ok) { |
| 477 | if (l) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 478 | l->debug("[device {}] Sent connection request. Put encrypted {:s}", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 479 | deviceId, |
| 480 | (ok ? "ok" : "failed")); |
| 481 | }); |
| 482 | // Wait for call to onResponse() operated by DHT |
| 483 | if (isDestroying_) { |
| 484 | onConnected(true); // This avoid to wait new negotiation when destroying |
| 485 | return; |
| 486 | } |
| 487 | |
| 488 | info->onConnected_ = std::move(onConnected); |
| 489 | info->waitForAnswer_ = std::make_unique<asio::steady_timer>(*config_->ioContext, |
| 490 | std::chrono::steady_clock::now() |
| 491 | + DHT_MSG_TIMEOUT); |
| 492 | info->waitForAnswer_->async_wait( |
| 493 | std::bind(&ConnectionManager::Impl::onResponse, this, std::placeholders::_1, deviceId, vid)); |
| 494 | } |
| 495 | |
| 496 | void |
| 497 | ConnectionManager::Impl::onResponse(const asio::error_code& ec, |
| 498 | const DeviceId& deviceId, |
| 499 | const dht::Value::Id& vid) |
| 500 | { |
| 501 | if (ec == asio::error::operation_aborted) |
| 502 | return; |
| 503 | auto info = getInfo(deviceId, vid); |
| 504 | if (!info) |
| 505 | return; |
| 506 | |
| 507 | std::unique_lock<std::mutex> lk(info->mutex_); |
| 508 | auto& ice = info->ice_; |
| 509 | if (isDestroying_) { |
| 510 | info->onConnected_(true); // The destructor can wake a pending wait here. |
| 511 | return; |
| 512 | } |
| 513 | if (!info->responseReceived_) { |
| 514 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 515 | config_->logger->error("[device {}] no response from DHT to ICE request.", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 516 | info->onConnected_(false); |
| 517 | return; |
| 518 | } |
| 519 | |
| 520 | if (!info->ice_) { |
| 521 | info->onConnected_(false); |
| 522 | return; |
| 523 | } |
| 524 | |
| 525 | auto sdp = ice->parseIceCandidates(info->response_.ice_msg); |
| 526 | |
| 527 | if (not ice->startIce({sdp.rem_ufrag, sdp.rem_pwd}, std::move(sdp.rem_candidates))) { |
| 528 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 529 | config_->logger->warn("[device {}] start ICE failed", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 530 | info->onConnected_(false); |
| 531 | return; |
| 532 | } |
| 533 | info->onConnected_(true); |
| 534 | } |
| 535 | |
| 536 | bool |
| 537 | ConnectionManager::Impl::connectDeviceOnNegoDone( |
| 538 | const DeviceId& deviceId, |
| 539 | const std::string& name, |
| 540 | const dht::Value::Id& vid, |
| 541 | const std::shared_ptr<dht::crypto::Certificate>& cert) |
| 542 | { |
| 543 | auto info = getInfo(deviceId, vid); |
| 544 | if (!info) |
| 545 | return false; |
| 546 | |
| 547 | std::unique_lock<std::mutex> lk {info->mutex_}; |
| 548 | if (info->waitForAnswer_) { |
| 549 | // Negotiation is done and connected, go to handshake |
| 550 | // and avoid any cancellation at this point. |
| 551 | info->waitForAnswer_->cancel(); |
| 552 | } |
| 553 | auto& ice = info->ice_; |
| 554 | if (!ice || !ice->isRunning()) { |
| 555 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 556 | config_->logger->error("[device {}] No ICE detected or not running", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 557 | return false; |
| 558 | } |
| 559 | |
| 560 | // Build socket |
| 561 | auto endpoint = std::make_unique<IceSocketEndpoint>(std::shared_ptr<IceTransport>( |
| 562 | std::move(ice)), |
| 563 | true); |
| 564 | |
| 565 | // Negotiate a TLS session |
| 566 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 567 | config_->logger->debug("[device {}] Start TLS session - Initied by connectDevice(). Launched by channel: {} - vid: {}", deviceId, name, vid); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 568 | info->tls_ = std::make_unique<TlsSocketEndpoint>(std::move(endpoint), |
| 569 | certStore(), |
Adrien Béraud | 3f93ddf | 2023-07-21 14:46:22 -0400 | [diff] [blame] | 570 | config_->ioContext, |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 571 | identity(), |
| 572 | dhParams(), |
| 573 | *cert); |
| 574 | |
| 575 | info->tls_->setOnReady( |
| 576 | [w = weak(), deviceId = std::move(deviceId), vid = std::move(vid), name = std::move(name)]( |
| 577 | bool ok) { |
| 578 | if (auto shared = w.lock()) |
| 579 | shared->onTlsNegotiationDone(ok, deviceId, vid, name); |
| 580 | }); |
| 581 | return true; |
| 582 | } |
| 583 | |
| 584 | void |
| 585 | ConnectionManager::Impl::connectDevice(const DeviceId& deviceId, |
| 586 | const std::string& name, |
| 587 | ConnectCallback cb, |
| 588 | bool noNewSocket, |
| 589 | bool forceNewSocket, |
| 590 | const std::string& connType) |
| 591 | { |
| 592 | if (!dht()) { |
| 593 | cb(nullptr, deviceId); |
| 594 | return; |
| 595 | } |
| 596 | if (deviceId.toString() == identity().second->getLongId().toString()) { |
| 597 | cb(nullptr, deviceId); |
| 598 | return; |
| 599 | } |
| 600 | findCertificate(deviceId, |
| 601 | [w = weak(), |
| 602 | deviceId, |
| 603 | name, |
| 604 | cb = std::move(cb), |
| 605 | noNewSocket, |
| 606 | forceNewSocket, |
| 607 | connType](const std::shared_ptr<dht::crypto::Certificate>& cert) { |
| 608 | if (!cert) { |
| 609 | if (auto shared = w.lock()) |
| 610 | if (shared->config_->logger) |
| 611 | shared->config_->logger->error( |
| 612 | "No valid certificate found for device {}", |
| 613 | deviceId); |
| 614 | cb(nullptr, deviceId); |
| 615 | return; |
| 616 | } |
| 617 | if (auto shared = w.lock()) { |
| 618 | shared->connectDevice(cert, |
| 619 | name, |
| 620 | std::move(cb), |
| 621 | noNewSocket, |
| 622 | forceNewSocket, |
| 623 | connType); |
| 624 | } else |
| 625 | cb(nullptr, deviceId); |
| 626 | }); |
| 627 | } |
| 628 | |
| 629 | void |
Amna | 0cf544d | 2023-07-25 14:25:09 -0400 | [diff] [blame] | 630 | ConnectionManager::Impl::connectDevice(const dht::InfoHash& deviceId, |
| 631 | const std::string& name, |
| 632 | ConnectCallbackLegacy cb, |
| 633 | bool noNewSocket, |
| 634 | bool forceNewSocket, |
| 635 | const std::string& connType) |
| 636 | { |
| 637 | if (!dht()) { |
| 638 | cb(nullptr, deviceId); |
| 639 | return; |
| 640 | } |
| 641 | if (deviceId.toString() == identity().second->getLongId().toString()) { |
| 642 | cb(nullptr, deviceId); |
| 643 | return; |
| 644 | } |
| 645 | findCertificate(deviceId, |
| 646 | [w = weak(), |
| 647 | deviceId, |
| 648 | name, |
| 649 | cb = std::move(cb), |
| 650 | noNewSocket, |
| 651 | forceNewSocket, |
| 652 | connType](const std::shared_ptr<dht::crypto::Certificate>& cert) { |
| 653 | if (!cert) { |
| 654 | if (auto shared = w.lock()) |
| 655 | if (shared->config_->logger) |
| 656 | shared->config_->logger->error( |
| 657 | "No valid certificate found for device {}", |
| 658 | deviceId); |
| 659 | cb(nullptr, deviceId); |
| 660 | return; |
| 661 | } |
| 662 | if (auto shared = w.lock()) { |
| 663 | shared->connectDevice(cert, |
| 664 | name, |
| 665 | [cb, deviceId](const std::shared_ptr<ChannelSocket>& sock, const DeviceId& did){ |
| 666 | cb(sock, deviceId); |
| 667 | }, |
| 668 | noNewSocket, |
| 669 | forceNewSocket, |
| 670 | connType); |
| 671 | } else |
| 672 | cb(nullptr, deviceId); |
| 673 | }); |
| 674 | } |
| 675 | |
| 676 | void |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 677 | ConnectionManager::Impl::connectDevice(const std::shared_ptr<dht::crypto::Certificate>& cert, |
| 678 | const std::string& name, |
| 679 | ConnectCallback cb, |
| 680 | bool noNewSocket, |
| 681 | bool forceNewSocket, |
| 682 | const std::string& connType) |
| 683 | { |
| 684 | // Avoid dht operation in a DHT callback to avoid deadlocks |
| 685 | dht::ThreadPool::computation().run([w = weak(), |
| 686 | name = std::move(name), |
| 687 | cert = std::move(cert), |
| 688 | cb = std::move(cb), |
| 689 | noNewSocket, |
| 690 | forceNewSocket, |
| 691 | connType] { |
| 692 | auto devicePk = cert->getSharedPublicKey(); |
| 693 | auto deviceId = devicePk->getLongId(); |
| 694 | auto sthis = w.lock(); |
| 695 | if (!sthis || sthis->isDestroying_) { |
| 696 | cb(nullptr, deviceId); |
| 697 | return; |
| 698 | } |
| 699 | dht::Value::Id vid = ValueIdDist(1, ID_MAX_VAL)(sthis->rand); |
| 700 | auto isConnectingToDevice = false; |
| 701 | { |
| 702 | std::lock_guard<std::mutex> lk(sthis->connectCbsMtx_); |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 703 | auto pendingsIt = sthis->pendingOperations_.find(deviceId); |
| 704 | if (pendingsIt != sthis->pendingOperations_.end()) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 705 | const auto& pendings = pendingsIt->second; |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 706 | while (pendings.connecting.find(vid) != pendings.connecting.end() |
| 707 | && pendings.waiting.find(vid) != pendings.waiting.end()) { |
Adrien Béraud | c5b971d | 2023-06-13 19:41:25 -0400 | [diff] [blame] | 708 | vid = ValueIdDist(1, ID_MAX_VAL)(sthis->rand); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 709 | } |
| 710 | } |
| 711 | // Check if already connecting |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 712 | isConnectingToDevice = pendingsIt != sthis->pendingOperations_.end(); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 713 | // Save current request for sendChannelRequest. |
| 714 | // Note: do not return here, cause we can be in a state where first |
| 715 | // socket is negotiated and first channel is pending |
| 716 | // so return only after we checked the info |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 717 | if (isConnectingToDevice && !forceNewSocket) |
| 718 | pendingsIt->second.waiting[vid] = PendingCb {name, std::move(cb)}; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 719 | else |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 720 | sthis->pendingOperations_[deviceId].connecting[vid] = PendingCb {name, std::move(cb)}; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | // Check if already negotiated |
| 724 | CallbackId cbId(deviceId, vid); |
| 725 | if (auto info = sthis->getConnectedInfo(deviceId)) { |
| 726 | std::lock_guard<std::mutex> lk(info->mutex_); |
| 727 | if (info->socket_) { |
| 728 | if (sthis->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 729 | sthis->config_->logger->debug("[device {}] Peer already connected. Add a new channel", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 730 | info->cbIds_.emplace(cbId); |
| 731 | sthis->sendChannelRequest(info->socket_, name, deviceId, vid); |
| 732 | return; |
| 733 | } |
| 734 | } |
| 735 | |
| 736 | if (isConnectingToDevice && !forceNewSocket) { |
| 737 | if (sthis->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 738 | sthis->config_->logger->debug("[device {}] Already connecting, wait for ICE negotiation", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 739 | return; |
| 740 | } |
| 741 | if (noNewSocket) { |
| 742 | // If no new socket is specified, we don't try to generate a new socket |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 743 | sthis->executePendingOperations(deviceId, vid, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 744 | return; |
| 745 | } |
| 746 | |
| 747 | // Note: used when the ice negotiation fails to erase |
| 748 | // all stored structures. |
| 749 | auto eraseInfo = [w, cbId] { |
| 750 | if (auto shared = w.lock()) { |
| 751 | // If no new socket is specified, we don't try to generate a new socket |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 752 | shared->executePendingOperations(cbId.first, cbId.second, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 753 | std::lock_guard<std::mutex> lk(shared->infosMtx_); |
| 754 | shared->infos_.erase(cbId); |
| 755 | } |
| 756 | }; |
| 757 | |
| 758 | // If no socket exists, we need to initiate an ICE connection. |
| 759 | sthis->getIceOptions([w, |
| 760 | deviceId = std::move(deviceId), |
| 761 | devicePk = std::move(devicePk), |
| 762 | name = std::move(name), |
| 763 | cert = std::move(cert), |
| 764 | vid, |
| 765 | connType, |
| 766 | eraseInfo](auto&& ice_config) { |
| 767 | auto sthis = w.lock(); |
| 768 | if (!sthis) { |
| 769 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 770 | return; |
| 771 | } |
| 772 | ice_config.tcpEnable = true; |
| 773 | ice_config.onInitDone = [w, |
| 774 | deviceId = std::move(deviceId), |
| 775 | devicePk = std::move(devicePk), |
| 776 | name = std::move(name), |
| 777 | cert = std::move(cert), |
| 778 | vid, |
| 779 | connType, |
| 780 | eraseInfo](bool ok) { |
| 781 | dht::ThreadPool::io().run([w = std::move(w), |
| 782 | devicePk = std::move(devicePk), |
| 783 | vid = std::move(vid), |
| 784 | eraseInfo, |
| 785 | connType, ok] { |
| 786 | auto sthis = w.lock(); |
| 787 | if (!ok && sthis && sthis->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 788 | sthis->config_->logger->error("[device {}] Cannot initialize ICE session.", devicePk->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 789 | if (!sthis || !ok) { |
| 790 | eraseInfo(); |
| 791 | return; |
| 792 | } |
| 793 | sthis->connectDeviceStartIce(devicePk, vid, connType, [=](bool ok) { |
| 794 | if (!ok) { |
| 795 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 796 | } |
| 797 | }); |
| 798 | }); |
| 799 | }; |
| 800 | ice_config.onNegoDone = [w, |
| 801 | deviceId, |
| 802 | name, |
| 803 | cert = std::move(cert), |
| 804 | vid, |
| 805 | eraseInfo](bool ok) { |
| 806 | dht::ThreadPool::io().run([w = std::move(w), |
| 807 | deviceId = std::move(deviceId), |
| 808 | name = std::move(name), |
| 809 | cert = std::move(cert), |
| 810 | vid = std::move(vid), |
| 811 | eraseInfo = std::move(eraseInfo), |
| 812 | ok] { |
| 813 | auto sthis = w.lock(); |
| 814 | if (!ok && sthis && sthis->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 815 | sthis->config_->logger->error("[device {}] ICE negotiation failed.", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 816 | if (!sthis || !ok || !sthis->connectDeviceOnNegoDone(deviceId, name, vid, cert)) |
| 817 | eraseInfo(); |
| 818 | }); |
| 819 | }; |
| 820 | |
| 821 | auto info = std::make_shared<ConnectionInfo>(); |
| 822 | { |
| 823 | std::lock_guard<std::mutex> lk(sthis->infosMtx_); |
| 824 | sthis->infos_[{deviceId, vid}] = info; |
| 825 | } |
| 826 | std::unique_lock<std::mutex> lk {info->mutex_}; |
| 827 | ice_config.master = false; |
| 828 | ice_config.streamsCount = 1; |
| 829 | ice_config.compCountPerStream = 1; |
Sébastien Blin | 3408651 | 2023-07-25 09:52:14 -0400 | [diff] [blame] | 830 | info->ice_ = sthis->config_->factory->createUTransport(""); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 831 | if (!info->ice_) { |
| 832 | if (sthis->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 833 | sthis->config_->logger->error("[device {}] Cannot initialize ICE session.", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 834 | eraseInfo(); |
| 835 | return; |
| 836 | } |
| 837 | // We need to detect any shutdown if the ice session is destroyed before going to the |
| 838 | // TLS session; |
| 839 | info->ice_->setOnShutdown([eraseInfo]() { |
| 840 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 841 | }); |
Adrien Béraud | 4cda2d7 | 2023-06-01 15:44:43 -0400 | [diff] [blame] | 842 | try { |
| 843 | info->ice_->initIceInstance(ice_config); |
| 844 | } catch (const std::exception& e) { |
| 845 | if (sthis->config_->logger) |
| 846 | sthis->config_->logger->error("{}", e.what()); |
| 847 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 848 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 849 | }); |
| 850 | }); |
| 851 | } |
| 852 | |
| 853 | void |
| 854 | ConnectionManager::Impl::sendChannelRequest(std::shared_ptr<MultiplexedSocket>& sock, |
| 855 | const std::string& name, |
| 856 | const DeviceId& deviceId, |
| 857 | const dht::Value::Id& vid) |
| 858 | { |
| 859 | auto channelSock = sock->addChannel(name); |
| 860 | channelSock->onShutdown([name, deviceId, vid, w = weak()] { |
| 861 | auto shared = w.lock(); |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 862 | if (auto shared = w.lock()) |
| 863 | shared->executePendingOperations(deviceId, vid, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 864 | }); |
| 865 | channelSock->onReady( |
Adrien Béraud | 7e8b056 | 2023-06-13 18:10:53 -0400 | [diff] [blame] | 866 | [wSock = std::weak_ptr<ChannelSocket>(channelSock), name, deviceId, vid, w = weak()](bool accepted) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 867 | auto shared = w.lock(); |
| 868 | auto channelSock = wSock.lock(); |
| 869 | if (shared) |
Adrien Béraud | 7e8b056 | 2023-06-13 18:10:53 -0400 | [diff] [blame] | 870 | shared->executePendingOperations(deviceId, vid, accepted ? channelSock : nullptr, accepted); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 871 | }); |
| 872 | |
| 873 | ChannelRequest val; |
| 874 | val.name = channelSock->name(); |
| 875 | val.state = ChannelRequestState::REQUEST; |
| 876 | val.channel = channelSock->channel(); |
| 877 | msgpack::sbuffer buffer(256); |
| 878 | msgpack::pack(buffer, val); |
| 879 | |
| 880 | std::error_code ec; |
| 881 | int res = sock->write(CONTROL_CHANNEL, |
| 882 | reinterpret_cast<const uint8_t*>(buffer.data()), |
| 883 | buffer.size(), |
| 884 | ec); |
| 885 | if (res < 0) { |
| 886 | // TODO check if we should handle errors here |
| 887 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 888 | config_->logger->error("[device {}] sendChannelRequest failed - error: {}", deviceId, ec.message()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 889 | } |
| 890 | } |
| 891 | |
| 892 | void |
| 893 | ConnectionManager::Impl::onPeerResponse(const PeerConnectionRequest& req) |
| 894 | { |
| 895 | auto device = req.owner->getLongId(); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 896 | if (auto info = getInfo(device, req.id)) { |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 897 | if (config_->logger) |
| 898 | config_->logger->debug("[device {}] New response received", device); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 899 | std::lock_guard<std::mutex> lk {info->mutex_}; |
| 900 | info->responseReceived_ = true; |
| 901 | info->response_ = std::move(req); |
| 902 | info->waitForAnswer_->expires_at(std::chrono::steady_clock::now()); |
| 903 | info->waitForAnswer_->async_wait(std::bind(&ConnectionManager::Impl::onResponse, |
| 904 | this, |
| 905 | std::placeholders::_1, |
| 906 | device, |
| 907 | req.id)); |
| 908 | } else { |
| 909 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 910 | config_->logger->warn("[device {}] Respond received, but cannot find request", device); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 911 | } |
| 912 | } |
| 913 | |
| 914 | void |
| 915 | ConnectionManager::Impl::onDhtConnected(const dht::crypto::PublicKey& devicePk) |
| 916 | { |
| 917 | if (!dht()) |
| 918 | return; |
| 919 | dht()->listen<PeerConnectionRequest>( |
| 920 | dht::InfoHash::get(PeerConnectionRequest::key_prefix + devicePk.getId().toString()), |
| 921 | [w = weak()](PeerConnectionRequest&& req) { |
| 922 | auto shared = w.lock(); |
| 923 | if (!shared) |
| 924 | return false; |
| 925 | if (shared->isMessageTreated(to_hex_string(req.id))) { |
| 926 | // Message already treated. Just ignore |
| 927 | return true; |
| 928 | } |
| 929 | if (req.isAnswer) { |
| 930 | if (shared->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 931 | shared->config_->logger->debug("[device {}] Received request answer", req.owner->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 932 | } else { |
| 933 | if (shared->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 934 | shared->config_->logger->debug("[device {}] Received request", req.owner->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 935 | } |
| 936 | if (req.isAnswer) { |
| 937 | shared->onPeerResponse(req); |
| 938 | } else { |
| 939 | // Async certificate checking |
Sébastien Blin | 3408651 | 2023-07-25 09:52:14 -0400 | [diff] [blame] | 940 | shared->findCertificate( |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 941 | req.from, |
| 942 | [w, req = std::move(req)]( |
| 943 | const std::shared_ptr<dht::crypto::Certificate>& cert) mutable { |
| 944 | auto shared = w.lock(); |
| 945 | if (!shared) |
| 946 | return; |
| 947 | dht::InfoHash peer_h; |
| 948 | if (foundPeerDevice(cert, peer_h, shared->config_->logger)) { |
| 949 | #if TARGET_OS_IOS |
| 950 | if (shared->iOSConnectedCb_(req.connType, peer_h)) |
| 951 | return; |
| 952 | #endif |
| 953 | shared->onDhtPeerRequest(req, cert); |
| 954 | } else { |
| 955 | if (shared->config_->logger) |
| 956 | shared->config_->logger->warn( |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 957 | "[device {}] Received request from untrusted peer", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 958 | req.owner->getLongId()); |
| 959 | } |
| 960 | }); |
| 961 | } |
| 962 | |
| 963 | return true; |
| 964 | }, |
| 965 | dht::Value::UserTypeFilter("peer_request")); |
| 966 | } |
| 967 | |
| 968 | void |
| 969 | ConnectionManager::Impl::onTlsNegotiationDone(bool ok, |
| 970 | const DeviceId& deviceId, |
| 971 | const dht::Value::Id& vid, |
| 972 | const std::string& name) |
| 973 | { |
| 974 | if (isDestroying_) |
| 975 | return; |
| 976 | // Note: only handle pendingCallbacks here for TLS initied by connectDevice() |
| 977 | // Note: if not initied by connectDevice() the channel name will be empty (because no channel |
| 978 | // asked yet) |
| 979 | auto isDhtRequest = name.empty(); |
| 980 | if (!ok) { |
| 981 | if (isDhtRequest) { |
| 982 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 983 | config_->logger->error("[device {}] TLS connection failure - Initied by DHT request. channel: {} - vid: {}", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 984 | deviceId, |
| 985 | name, |
| 986 | vid); |
| 987 | if (connReadyCb_) |
| 988 | connReadyCb_(deviceId, "", nullptr); |
| 989 | } else { |
| 990 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 991 | config_->logger->error("[device {}] TLS connection failure - Initied by connectDevice. channel: {} - vid: {}", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 992 | deviceId, |
| 993 | name, |
| 994 | vid); |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 995 | executePendingOperations(deviceId, vid, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 996 | } |
| 997 | } else { |
| 998 | // The socket is ready, store it |
| 999 | if (isDhtRequest) { |
| 1000 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1001 | config_->logger->debug("[device {}] Connection is ready - Initied by DHT request. Vid: {}", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1002 | deviceId, |
| 1003 | vid); |
| 1004 | } else { |
| 1005 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1006 | config_->logger->debug("[device {}] Connection is ready - Initied by connectDevice(). channel: {} - vid: {}", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1007 | deviceId, |
| 1008 | name, |
| 1009 | vid); |
| 1010 | } |
| 1011 | |
| 1012 | auto info = getInfo(deviceId, vid); |
| 1013 | addNewMultiplexedSocket({deviceId, vid}, info); |
| 1014 | // Finally, open the channel and launch pending callbacks |
| 1015 | if (info->socket_) { |
| 1016 | // Note: do not remove pending there it's done in sendChannelRequest |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 1017 | for (const auto& [id, name] : getPendingIds(deviceId)) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1018 | if (config_->logger) |
Adrien Béraud | e5f2506 | 2023-07-25 13:16:13 -0400 | [diff] [blame] | 1019 | config_->logger->debug("[device {}] Send request on TLS socket for channel {}", |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1020 | deviceId, name); |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 1021 | sendChannelRequest(info->socket_, name, deviceId, id); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1022 | } |
| 1023 | } |
| 1024 | } |
| 1025 | } |
| 1026 | |
| 1027 | void |
| 1028 | ConnectionManager::Impl::answerTo(IceTransport& ice, |
| 1029 | const dht::Value::Id& id, |
| 1030 | const std::shared_ptr<dht::crypto::PublicKey>& from) |
| 1031 | { |
| 1032 | // NOTE: This is a shortest version of a real SDP message to save some bits |
| 1033 | auto iceAttributes = ice.getLocalAttributes(); |
| 1034 | std::ostringstream icemsg; |
| 1035 | icemsg << iceAttributes.ufrag << "\n"; |
| 1036 | icemsg << iceAttributes.pwd << "\n"; |
| 1037 | for (const auto& addr : ice.getLocalCandidates(1)) { |
| 1038 | icemsg << addr << "\n"; |
| 1039 | } |
| 1040 | |
| 1041 | // Send PeerConnection response |
| 1042 | PeerConnectionRequest val; |
| 1043 | val.id = id; |
| 1044 | val.ice_msg = icemsg.str(); |
| 1045 | val.isAnswer = true; |
| 1046 | auto value = std::make_shared<dht::Value>(std::move(val)); |
| 1047 | value->user_type = "peer_request"; |
| 1048 | |
| 1049 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1050 | config_->logger->debug("[device {}] Connection accepted, DHT reply", from->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1051 | dht()->putEncrypted(dht::InfoHash::get(PeerConnectionRequest::key_prefix |
| 1052 | + from->getId().toString()), |
| 1053 | from, |
| 1054 | value, |
| 1055 | [from,l=config_->logger](bool ok) { |
| 1056 | if (l) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1057 | l->debug("[device {}] Answer to connection request: put encrypted {:s}", |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1058 | from->getLongId(), |
| 1059 | (ok ? "ok" : "failed")); |
| 1060 | }); |
| 1061 | } |
| 1062 | |
| 1063 | bool |
| 1064 | ConnectionManager::Impl::onRequestStartIce(const PeerConnectionRequest& req) |
| 1065 | { |
| 1066 | auto deviceId = req.owner->getLongId(); |
| 1067 | auto info = getInfo(deviceId, req.id); |
| 1068 | if (!info) |
| 1069 | return false; |
| 1070 | |
| 1071 | std::unique_lock<std::mutex> lk {info->mutex_}; |
| 1072 | auto& ice = info->ice_; |
| 1073 | if (!ice) { |
| 1074 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1075 | config_->logger->error("[device {}] No ICE detected", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1076 | if (connReadyCb_) |
| 1077 | connReadyCb_(deviceId, "", nullptr); |
| 1078 | return false; |
| 1079 | } |
| 1080 | |
| 1081 | auto sdp = ice->parseIceCandidates(req.ice_msg); |
| 1082 | answerTo(*ice, req.id, req.owner); |
| 1083 | if (not ice->startIce({sdp.rem_ufrag, sdp.rem_pwd}, std::move(sdp.rem_candidates))) { |
| 1084 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1085 | config_->logger->error("[device {}] Start ICE failed", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1086 | ice = nullptr; |
| 1087 | if (connReadyCb_) |
| 1088 | connReadyCb_(deviceId, "", nullptr); |
| 1089 | return false; |
| 1090 | } |
| 1091 | return true; |
| 1092 | } |
| 1093 | |
| 1094 | bool |
| 1095 | ConnectionManager::Impl::onRequestOnNegoDone(const PeerConnectionRequest& req) |
| 1096 | { |
| 1097 | auto deviceId = req.owner->getLongId(); |
| 1098 | auto info = getInfo(deviceId, req.id); |
| 1099 | if (!info) |
| 1100 | return false; |
| 1101 | |
| 1102 | std::unique_lock<std::mutex> lk {info->mutex_}; |
| 1103 | auto& ice = info->ice_; |
| 1104 | if (!ice) { |
| 1105 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1106 | config_->logger->error("[device {}] No ICE detected", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1107 | return false; |
| 1108 | } |
| 1109 | |
| 1110 | // Build socket |
| 1111 | auto endpoint = std::make_unique<IceSocketEndpoint>(std::shared_ptr<IceTransport>( |
| 1112 | std::move(ice)), |
| 1113 | false); |
| 1114 | |
| 1115 | // init TLS session |
| 1116 | auto ph = req.from; |
| 1117 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1118 | config_->logger->debug("[device {}] Start TLS session - Initied by DHT request. vid: {}", |
| 1119 | deviceId, |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1120 | req.id); |
| 1121 | info->tls_ = std::make_unique<TlsSocketEndpoint>( |
| 1122 | std::move(endpoint), |
| 1123 | certStore(), |
Adrien Béraud | 3f93ddf | 2023-07-21 14:46:22 -0400 | [diff] [blame] | 1124 | config_->ioContext, |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1125 | identity(), |
| 1126 | dhParams(), |
| 1127 | [ph, w = weak()](const dht::crypto::Certificate& cert) { |
| 1128 | auto shared = w.lock(); |
| 1129 | if (!shared) |
| 1130 | return false; |
| 1131 | auto crt = shared->certStore().getCertificate(cert.getLongId().toString()); |
| 1132 | if (!crt) |
| 1133 | return false; |
| 1134 | return crt->getPacked() == cert.getPacked(); |
| 1135 | }); |
| 1136 | |
| 1137 | info->tls_->setOnReady( |
| 1138 | [w = weak(), deviceId = std::move(deviceId), vid = std::move(req.id)](bool ok) { |
| 1139 | if (auto shared = w.lock()) |
| 1140 | shared->onTlsNegotiationDone(ok, deviceId, vid); |
| 1141 | }); |
| 1142 | return true; |
| 1143 | } |
| 1144 | |
| 1145 | void |
| 1146 | ConnectionManager::Impl::onDhtPeerRequest(const PeerConnectionRequest& req, |
| 1147 | const std::shared_ptr<dht::crypto::Certificate>& /*cert*/) |
| 1148 | { |
| 1149 | auto deviceId = req.owner->getLongId(); |
| 1150 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1151 | config_->logger->debug("[device {}] New connection request", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1152 | if (!iceReqCb_ || !iceReqCb_(deviceId)) { |
| 1153 | if (config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1154 | config_->logger->debug("[device {}] Refusing connection", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | // Because the connection is accepted, create an ICE socket. |
| 1159 | getIceOptions([w = weak(), req, deviceId](auto&& ice_config) { |
| 1160 | auto shared = w.lock(); |
| 1161 | if (!shared) |
| 1162 | return; |
| 1163 | // Note: used when the ice negotiation fails to erase |
| 1164 | // all stored structures. |
| 1165 | auto eraseInfo = [w, id = req.id, deviceId] { |
| 1166 | if (auto shared = w.lock()) { |
| 1167 | // If no new socket is specified, we don't try to generate a new socket |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 1168 | shared->executePendingOperations(deviceId, id, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1169 | if (shared->connReadyCb_) |
| 1170 | shared->connReadyCb_(deviceId, "", nullptr); |
| 1171 | std::lock_guard<std::mutex> lk(shared->infosMtx_); |
| 1172 | shared->infos_.erase({deviceId, id}); |
| 1173 | } |
| 1174 | }; |
| 1175 | |
| 1176 | ice_config.tcpEnable = true; |
| 1177 | ice_config.onInitDone = [w, req, eraseInfo](bool ok) { |
| 1178 | auto shared = w.lock(); |
| 1179 | if (!shared) |
| 1180 | return; |
| 1181 | if (!ok) { |
| 1182 | if (shared->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1183 | shared->config_->logger->error("[device {}] Cannot initialize ICE session.", req.owner->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1184 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 1185 | return; |
| 1186 | } |
| 1187 | |
| 1188 | dht::ThreadPool::io().run( |
| 1189 | [w = std::move(w), req = std::move(req), eraseInfo = std::move(eraseInfo)] { |
| 1190 | auto shared = w.lock(); |
| 1191 | if (!shared) |
| 1192 | return; |
| 1193 | if (!shared->onRequestStartIce(req)) |
| 1194 | eraseInfo(); |
| 1195 | }); |
| 1196 | }; |
| 1197 | |
| 1198 | ice_config.onNegoDone = [w, req, eraseInfo](bool ok) { |
| 1199 | auto shared = w.lock(); |
| 1200 | if (!shared) |
| 1201 | return; |
| 1202 | if (!ok) { |
| 1203 | if (shared->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1204 | shared->config_->logger->error("[device {}] ICE negotiation failed.", req.owner->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1205 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 1206 | return; |
| 1207 | } |
| 1208 | |
| 1209 | dht::ThreadPool::io().run( |
| 1210 | [w = std::move(w), req = std::move(req), eraseInfo = std::move(eraseInfo)] { |
| 1211 | if (auto shared = w.lock()) |
| 1212 | if (!shared->onRequestOnNegoDone(req)) |
| 1213 | eraseInfo(); |
| 1214 | }); |
| 1215 | }; |
| 1216 | |
| 1217 | // Negotiate a new ICE socket |
| 1218 | auto info = std::make_shared<ConnectionInfo>(); |
| 1219 | { |
| 1220 | std::lock_guard<std::mutex> lk(shared->infosMtx_); |
| 1221 | shared->infos_[{deviceId, req.id}] = info; |
| 1222 | } |
| 1223 | if (shared->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1224 | shared->config_->logger->debug("[device {}] Accepting connection", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1225 | std::unique_lock<std::mutex> lk {info->mutex_}; |
| 1226 | ice_config.streamsCount = 1; |
| 1227 | ice_config.compCountPerStream = 1; // TCP |
| 1228 | ice_config.master = true; |
Sébastien Blin | 3408651 | 2023-07-25 09:52:14 -0400 | [diff] [blame] | 1229 | info->ice_ = shared->config_->factory->createUTransport(""); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1230 | if (not info->ice_) { |
| 1231 | if (shared->config_->logger) |
Adrien Béraud | 2385246 | 2023-07-22 01:46:27 -0400 | [diff] [blame] | 1232 | shared->config_->logger->error("[device {}] Cannot initialize ICE session", deviceId); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1233 | eraseInfo(); |
| 1234 | return; |
| 1235 | } |
| 1236 | // We need to detect any shutdown if the ice session is destroyed before going to the TLS session; |
| 1237 | info->ice_->setOnShutdown([eraseInfo]() { |
| 1238 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 1239 | }); |
Adrien Béraud | 4cda2d7 | 2023-06-01 15:44:43 -0400 | [diff] [blame] | 1240 | try { |
| 1241 | info->ice_->initIceInstance(ice_config); |
| 1242 | } catch (const std::exception& e) { |
| 1243 | if (shared->config_->logger) |
| 1244 | shared->config_->logger->error("{}", e.what()); |
| 1245 | dht::ThreadPool::io().run([eraseInfo = std::move(eraseInfo)] { eraseInfo(); }); |
| 1246 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1247 | }); |
| 1248 | } |
| 1249 | |
| 1250 | void |
| 1251 | ConnectionManager::Impl::addNewMultiplexedSocket(const CallbackId& id, const std::shared_ptr<ConnectionInfo>& info) |
| 1252 | { |
| 1253 | info->socket_ = std::make_shared<MultiplexedSocket>(config_->ioContext, id.first, std::move(info->tls_)); |
| 1254 | info->socket_->setOnReady( |
| 1255 | [w = weak()](const DeviceId& deviceId, const std::shared_ptr<ChannelSocket>& socket) { |
| 1256 | if (auto sthis = w.lock()) |
| 1257 | if (sthis->connReadyCb_) |
| 1258 | sthis->connReadyCb_(deviceId, socket->name(), socket); |
| 1259 | }); |
| 1260 | info->socket_->setOnRequest([w = weak()](const std::shared_ptr<dht::crypto::Certificate>& peer, |
| 1261 | const uint16_t&, |
| 1262 | const std::string& name) { |
| 1263 | if (auto sthis = w.lock()) |
| 1264 | if (sthis->channelReqCb_) |
| 1265 | return sthis->channelReqCb_(peer, name); |
| 1266 | return false; |
| 1267 | }); |
| 1268 | info->socket_->onShutdown([w = weak(), deviceId=id.first, vid=id.second]() { |
| 1269 | // Cancel current outgoing connections |
| 1270 | dht::ThreadPool::io().run([w, deviceId, vid] { |
| 1271 | auto sthis = w.lock(); |
| 1272 | if (!sthis) |
| 1273 | return; |
| 1274 | |
| 1275 | std::set<CallbackId> ids; |
| 1276 | if (auto info = sthis->getInfo(deviceId, vid)) { |
| 1277 | std::lock_guard<std::mutex> lk(info->mutex_); |
| 1278 | if (info->socket_) { |
| 1279 | ids = std::move(info->cbIds_); |
| 1280 | info->socket_->shutdown(); |
| 1281 | } |
| 1282 | } |
| 1283 | for (const auto& cbId : ids) |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 1284 | sthis->executePendingOperations(cbId.first, cbId.second, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1285 | |
| 1286 | std::lock_guard<std::mutex> lk(sthis->infosMtx_); |
| 1287 | sthis->infos_.erase({deviceId, vid}); |
| 1288 | }); |
| 1289 | }); |
| 1290 | } |
| 1291 | |
| 1292 | const std::shared_future<tls::DhParams> |
| 1293 | ConnectionManager::Impl::dhParams() const |
| 1294 | { |
| 1295 | return dht::ThreadPool::computation().get<tls::DhParams>( |
| 1296 | std::bind(tls::DhParams::loadDhParams, config_->cachePath + DIR_SEPARATOR_STR "dhParams")); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1297 | } |
| 1298 | |
| 1299 | template<typename ID = dht::Value::Id> |
| 1300 | std::set<ID, std::less<>> |
| 1301 | loadIdList(const std::string& path) |
| 1302 | { |
| 1303 | std::set<ID, std::less<>> ids; |
| 1304 | std::ifstream file = fileutils::ifstream(path); |
| 1305 | if (!file.is_open()) { |
| 1306 | //JAMI_DBG("Could not load %s", path.c_str()); |
| 1307 | return ids; |
| 1308 | } |
| 1309 | std::string line; |
| 1310 | while (std::getline(file, line)) { |
| 1311 | if constexpr (std::is_same<ID, std::string>::value) { |
| 1312 | ids.emplace(std::move(line)); |
| 1313 | } else if constexpr (std::is_integral<ID>::value) { |
| 1314 | ID vid; |
| 1315 | if (auto [p, ec] = std::from_chars(line.data(), line.data() + line.size(), vid, 16); |
| 1316 | ec == std::errc()) { |
| 1317 | ids.emplace(vid); |
| 1318 | } |
| 1319 | } |
| 1320 | } |
| 1321 | return ids; |
| 1322 | } |
| 1323 | |
| 1324 | template<typename List = std::set<dht::Value::Id>> |
| 1325 | void |
| 1326 | saveIdList(const std::string& path, const List& ids) |
| 1327 | { |
| 1328 | std::ofstream file = fileutils::ofstream(path, std::ios::trunc | std::ios::binary); |
| 1329 | if (!file.is_open()) { |
| 1330 | //JAMI_ERR("Could not save to %s", path.c_str()); |
| 1331 | return; |
| 1332 | } |
| 1333 | for (auto& c : ids) |
| 1334 | file << std::hex << c << "\n"; |
| 1335 | } |
| 1336 | |
| 1337 | void |
| 1338 | ConnectionManager::Impl::loadTreatedMessages() |
| 1339 | { |
| 1340 | std::lock_guard<std::mutex> lock(messageMutex_); |
| 1341 | auto path = config_->cachePath + DIR_SEPARATOR_STR "treatedMessages"; |
| 1342 | treatedMessages_ = loadIdList<std::string>(path); |
| 1343 | if (treatedMessages_.empty()) { |
| 1344 | auto messages = loadIdList(path); |
| 1345 | for (const auto& m : messages) |
| 1346 | treatedMessages_.emplace(to_hex_string(m)); |
| 1347 | } |
| 1348 | } |
| 1349 | |
| 1350 | void |
| 1351 | ConnectionManager::Impl::saveTreatedMessages() const |
| 1352 | { |
| 1353 | dht::ThreadPool::io().run([w = weak()]() { |
| 1354 | if (auto sthis = w.lock()) { |
| 1355 | auto& this_ = *sthis; |
| 1356 | std::lock_guard<std::mutex> lock(this_.messageMutex_); |
| 1357 | fileutils::check_dir(this_.config_->cachePath.c_str()); |
| 1358 | saveIdList<decltype(this_.treatedMessages_)>(this_.config_->cachePath |
| 1359 | + DIR_SEPARATOR_STR "treatedMessages", |
| 1360 | this_.treatedMessages_); |
| 1361 | } |
| 1362 | }); |
| 1363 | } |
| 1364 | |
| 1365 | bool |
| 1366 | ConnectionManager::Impl::isMessageTreated(std::string_view id) |
| 1367 | { |
| 1368 | std::lock_guard<std::mutex> lock(messageMutex_); |
| 1369 | auto res = treatedMessages_.emplace(id); |
| 1370 | if (res.second) { |
| 1371 | saveTreatedMessages(); |
| 1372 | return false; |
| 1373 | } |
| 1374 | return true; |
| 1375 | } |
| 1376 | |
| 1377 | /** |
| 1378 | * returns whether or not UPnP is enabled and active_ |
| 1379 | * ie: if it is able to make port mappings |
| 1380 | */ |
| 1381 | bool |
| 1382 | ConnectionManager::Impl::getUPnPActive() const |
| 1383 | { |
| 1384 | return config_->getUPnPActive(); |
| 1385 | } |
| 1386 | |
| 1387 | IpAddr |
| 1388 | ConnectionManager::Impl::getPublishedIpAddress(uint16_t family) const |
| 1389 | { |
| 1390 | if (family == AF_INET) |
| 1391 | return publishedIp_[0]; |
| 1392 | if (family == AF_INET6) |
| 1393 | return publishedIp_[1]; |
| 1394 | |
| 1395 | assert(family == AF_UNSPEC); |
| 1396 | |
| 1397 | // If family is not set, prefere IPv4 if available. It's more |
| 1398 | // likely to succeed behind NAT. |
| 1399 | if (publishedIp_[0]) |
| 1400 | return publishedIp_[0]; |
| 1401 | if (publishedIp_[1]) |
| 1402 | return publishedIp_[1]; |
| 1403 | return {}; |
| 1404 | } |
| 1405 | |
| 1406 | void |
| 1407 | ConnectionManager::Impl::setPublishedAddress(const IpAddr& ip_addr) |
| 1408 | { |
| 1409 | if (ip_addr.getFamily() == AF_INET) { |
| 1410 | publishedIp_[0] = ip_addr; |
| 1411 | } else { |
| 1412 | publishedIp_[1] = ip_addr; |
| 1413 | } |
| 1414 | } |
| 1415 | |
| 1416 | void |
| 1417 | ConnectionManager::Impl::storeActiveIpAddress(std::function<void()>&& cb) |
| 1418 | { |
| 1419 | dht()->getPublicAddress([this, cb = std::move(cb)](std::vector<dht::SockAddr>&& results) { |
| 1420 | bool hasIpv4 {false}, hasIpv6 {false}; |
| 1421 | for (auto& result : results) { |
| 1422 | auto family = result.getFamily(); |
| 1423 | if (family == AF_INET) { |
| 1424 | if (not hasIpv4) { |
| 1425 | hasIpv4 = true; |
| 1426 | if (config_->logger) |
| 1427 | config_->logger->debug("Store DHT public IPv4 address: {}", result); |
| 1428 | //JAMI_DBG("Store DHT public IPv4 address : %s", result.toString().c_str()); |
| 1429 | setPublishedAddress(*result.get()); |
| 1430 | if (config_->upnpCtrl) { |
| 1431 | config_->upnpCtrl->setPublicAddress(*result.get()); |
| 1432 | } |
| 1433 | } |
| 1434 | } else if (family == AF_INET6) { |
| 1435 | if (not hasIpv6) { |
| 1436 | hasIpv6 = true; |
| 1437 | if (config_->logger) |
| 1438 | config_->logger->debug("Store DHT public IPv6 address: {}", result); |
| 1439 | setPublishedAddress(*result.get()); |
| 1440 | } |
| 1441 | } |
| 1442 | if (hasIpv4 and hasIpv6) |
| 1443 | break; |
| 1444 | } |
| 1445 | if (cb) |
| 1446 | cb(); |
| 1447 | }); |
| 1448 | } |
| 1449 | |
| 1450 | void |
| 1451 | ConnectionManager::Impl::getIceOptions(std::function<void(IceTransportOptions&&)> cb) noexcept |
| 1452 | { |
| 1453 | storeActiveIpAddress([this, cb = std::move(cb)] { |
| 1454 | IceTransportOptions opts = ConnectionManager::Impl::getIceOptions(); |
| 1455 | auto publishedAddr = getPublishedIpAddress(); |
| 1456 | |
| 1457 | if (publishedAddr) { |
| 1458 | auto interfaceAddr = ip_utils::getInterfaceAddr(getLocalInterface(), |
| 1459 | publishedAddr.getFamily()); |
| 1460 | if (interfaceAddr) { |
| 1461 | opts.accountLocalAddr = interfaceAddr; |
| 1462 | opts.accountPublicAddr = publishedAddr; |
| 1463 | } |
| 1464 | } |
| 1465 | if (cb) |
| 1466 | cb(std::move(opts)); |
| 1467 | }); |
| 1468 | } |
| 1469 | |
| 1470 | IceTransportOptions |
| 1471 | ConnectionManager::Impl::getIceOptions() const noexcept |
| 1472 | { |
| 1473 | IceTransportOptions opts; |
Sébastien Blin | 3408651 | 2023-07-25 09:52:14 -0400 | [diff] [blame] | 1474 | opts.factory = config_->factory; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1475 | opts.upnpEnable = getUPnPActive(); |
Adrien Beraud | c161aaa | 2023-08-17 17:27:13 -0400 | [diff] [blame] | 1476 | opts.upnpContext = config_->upnpCtrl->upnpContext(); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1477 | |
| 1478 | if (config_->stunEnabled) |
| 1479 | opts.stunServers.emplace_back(StunServerInfo().setUri(config_->stunServer)); |
| 1480 | if (config_->turnEnabled) { |
Sébastien Blin | 84bf418 | 2023-07-21 14:18:39 -0400 | [diff] [blame] | 1481 | if (config_->turnCache) { |
| 1482 | auto turnAddr = config_->turnCache->getResolvedTurn(); |
| 1483 | if (turnAddr != std::nullopt) { |
| 1484 | opts.turnServers.emplace_back(TurnServerInfo() |
| 1485 | .setUri(turnAddr->toString()) |
| 1486 | .setUsername(config_->turnServerUserName) |
| 1487 | .setPassword(config_->turnServerPwd) |
| 1488 | .setRealm(config_->turnServerRealm)); |
| 1489 | } |
| 1490 | } else { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1491 | opts.turnServers.emplace_back(TurnServerInfo() |
Sébastien Blin | 84bf418 | 2023-07-21 14:18:39 -0400 | [diff] [blame] | 1492 | .setUri(config_->turnServer) |
| 1493 | .setUsername(config_->turnServerUserName) |
| 1494 | .setPassword(config_->turnServerPwd) |
| 1495 | .setRealm(config_->turnServerRealm)); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1496 | } |
| 1497 | // NOTE: first test with ipv6 turn was not concluant and resulted in multiple |
| 1498 | // co issues. So this needs some debug. for now just disable |
| 1499 | // if (cacheTurnV6 && *cacheTurnV6) { |
| 1500 | // opts.turnServers.emplace_back(TurnServerInfo() |
| 1501 | // .setUri(cacheTurnV6->toString(true)) |
| 1502 | // .setUsername(turnServerUserName_) |
| 1503 | // .setPassword(turnServerPwd_) |
| 1504 | // .setRealm(turnServerRealm_)); |
| 1505 | //} |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1506 | } |
| 1507 | return opts; |
| 1508 | } |
| 1509 | |
| 1510 | bool |
| 1511 | ConnectionManager::Impl::foundPeerDevice(const std::shared_ptr<dht::crypto::Certificate>& crt, |
| 1512 | dht::InfoHash& account_id, |
| 1513 | const std::shared_ptr<Logger>& logger) |
| 1514 | { |
| 1515 | if (not crt) |
| 1516 | return false; |
| 1517 | |
| 1518 | auto top_issuer = crt; |
| 1519 | while (top_issuer->issuer) |
| 1520 | top_issuer = top_issuer->issuer; |
| 1521 | |
| 1522 | // Device certificate can't be self-signed |
Adrien Béraud | c631a83 | 2023-07-26 22:19:00 -0400 | [diff] [blame] | 1523 | if (top_issuer == crt) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1524 | if (logger) |
Adrien Béraud | 8b831a8 | 2023-07-21 14:13:06 -0400 | [diff] [blame] | 1525 | logger->warn("Found invalid (self-signed) peer device: {}", crt->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1526 | return false; |
Adrien Béraud | c631a83 | 2023-07-26 22:19:00 -0400 | [diff] [blame] | 1527 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1528 | |
| 1529 | // Check peer certificate chain |
| 1530 | // Trust store with top issuer as the only CA |
| 1531 | dht::crypto::TrustList peer_trust; |
| 1532 | peer_trust.add(*top_issuer); |
| 1533 | if (not peer_trust.verify(*crt)) { |
| 1534 | if (logger) |
| 1535 | logger->warn("Found invalid peer device: {}", crt->getLongId()); |
| 1536 | return false; |
| 1537 | } |
| 1538 | |
| 1539 | // Check cached OCSP response |
| 1540 | if (crt->ocspResponse and crt->ocspResponse->getCertificateStatus() != GNUTLS_OCSP_CERT_GOOD) { |
| 1541 | if (logger) |
Adrien Béraud | 8b831a8 | 2023-07-21 14:13:06 -0400 | [diff] [blame] | 1542 | logger->error("Certificate {} is disabled by cached OCSP response", crt->getLongId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1543 | return false; |
| 1544 | } |
| 1545 | |
Adrien Béraud | c631a83 | 2023-07-26 22:19:00 -0400 | [diff] [blame] | 1546 | account_id = crt->issuer->getId(); |
| 1547 | if (logger) |
| 1548 | logger->warn("Found peer device: {} account:{} CA:{}", |
| 1549 | crt->getLongId(), |
| 1550 | account_id, |
| 1551 | top_issuer->getId()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1552 | return true; |
| 1553 | } |
| 1554 | |
| 1555 | bool |
| 1556 | ConnectionManager::Impl::findCertificate( |
| 1557 | const dht::PkId& id, std::function<void(const std::shared_ptr<dht::crypto::Certificate>&)>&& cb) |
| 1558 | { |
| 1559 | if (auto cert = certStore().getCertificate(id.toString())) { |
| 1560 | if (cb) |
| 1561 | cb(cert); |
| 1562 | } else if (cb) |
| 1563 | cb(nullptr); |
| 1564 | return true; |
| 1565 | } |
| 1566 | |
Sébastien Blin | 3408651 | 2023-07-25 09:52:14 -0400 | [diff] [blame] | 1567 | bool |
| 1568 | ConnectionManager::Impl::findCertificate(const dht::InfoHash& h, |
| 1569 | std::function<void(const std::shared_ptr<dht::crypto::Certificate>&)>&& cb) |
| 1570 | { |
| 1571 | if (auto cert = certStore().getCertificate(h.toString())) { |
| 1572 | if (cb) |
| 1573 | cb(cert); |
| 1574 | } else { |
| 1575 | dht()->findCertificate(h, |
| 1576 | [cb = std::move(cb), this]( |
| 1577 | const std::shared_ptr<dht::crypto::Certificate>& crt) { |
| 1578 | if (crt) |
| 1579 | certStore().pinCertificate(crt); |
| 1580 | if (cb) |
| 1581 | cb(crt); |
| 1582 | }); |
| 1583 | } |
| 1584 | return true; |
| 1585 | } |
| 1586 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1587 | ConnectionManager::ConnectionManager(std::shared_ptr<ConnectionManager::Config> config_) |
| 1588 | : pimpl_ {std::make_shared<Impl>(config_)} |
| 1589 | {} |
| 1590 | |
| 1591 | ConnectionManager::~ConnectionManager() |
| 1592 | { |
| 1593 | if (pimpl_) |
| 1594 | pimpl_->shutdown(); |
| 1595 | } |
| 1596 | |
| 1597 | void |
| 1598 | ConnectionManager::connectDevice(const DeviceId& deviceId, |
| 1599 | const std::string& name, |
| 1600 | ConnectCallback cb, |
| 1601 | bool noNewSocket, |
| 1602 | bool forceNewSocket, |
| 1603 | const std::string& connType) |
| 1604 | { |
| 1605 | pimpl_->connectDevice(deviceId, name, std::move(cb), noNewSocket, forceNewSocket, connType); |
| 1606 | } |
| 1607 | |
| 1608 | void |
Amna | 0cf544d | 2023-07-25 14:25:09 -0400 | [diff] [blame] | 1609 | ConnectionManager::connectDevice(const dht::InfoHash& deviceId, |
| 1610 | const std::string& name, |
| 1611 | ConnectCallbackLegacy cb, |
| 1612 | bool noNewSocket, |
| 1613 | bool forceNewSocket, |
| 1614 | const std::string& connType) |
| 1615 | { |
| 1616 | pimpl_->connectDevice(deviceId, name, std::move(cb), noNewSocket, forceNewSocket, connType); |
| 1617 | } |
| 1618 | |
| 1619 | |
| 1620 | void |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1621 | ConnectionManager::connectDevice(const std::shared_ptr<dht::crypto::Certificate>& cert, |
| 1622 | const std::string& name, |
| 1623 | ConnectCallback cb, |
| 1624 | bool noNewSocket, |
| 1625 | bool forceNewSocket, |
| 1626 | const std::string& connType) |
| 1627 | { |
| 1628 | pimpl_->connectDevice(cert, name, std::move(cb), noNewSocket, forceNewSocket, connType); |
| 1629 | } |
| 1630 | |
| 1631 | bool |
| 1632 | ConnectionManager::isConnecting(const DeviceId& deviceId, const std::string& name) const |
| 1633 | { |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 1634 | auto pending = pimpl_->getPendingIds(deviceId); |
| 1635 | return std::find_if(pending.begin(), pending.end(), [&](auto p) { return p.second == name; }) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1636 | != pending.end(); |
| 1637 | } |
| 1638 | |
| 1639 | void |
| 1640 | ConnectionManager::closeConnectionsWith(const std::string& peerUri) |
| 1641 | { |
| 1642 | std::vector<std::shared_ptr<ConnectionInfo>> connInfos; |
| 1643 | std::set<DeviceId> peersDevices; |
| 1644 | { |
| 1645 | std::lock_guard<std::mutex> lk(pimpl_->infosMtx_); |
| 1646 | for (auto iter = pimpl_->infos_.begin(); iter != pimpl_->infos_.end();) { |
| 1647 | auto const& [key, value] = *iter; |
| 1648 | auto deviceId = key.first; |
| 1649 | auto cert = pimpl_->certStore().getCertificate(deviceId.toString()); |
| 1650 | if (cert && cert->issuer && peerUri == cert->issuer->getId().toString()) { |
| 1651 | connInfos.emplace_back(value); |
| 1652 | peersDevices.emplace(deviceId); |
| 1653 | iter = pimpl_->infos_.erase(iter); |
| 1654 | } else { |
| 1655 | iter++; |
| 1656 | } |
| 1657 | } |
| 1658 | } |
| 1659 | // Stop connections to all peers devices |
| 1660 | for (const auto& deviceId : peersDevices) { |
Adrien Béraud | 665294f | 2023-06-13 18:09:11 -0400 | [diff] [blame] | 1661 | pimpl_->executePendingOperations(deviceId, 0, nullptr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1662 | // This will close the TLS Session |
| 1663 | pimpl_->removeUnusedConnections(deviceId); |
| 1664 | } |
| 1665 | for (auto& info : connInfos) { |
| 1666 | if (info->socket_) |
| 1667 | info->socket_->shutdown(); |
| 1668 | if (info->waitForAnswer_) |
| 1669 | info->waitForAnswer_->cancel(); |
| 1670 | if (info->ice_) { |
| 1671 | std::unique_lock<std::mutex> lk {info->mutex_}; |
| 1672 | dht::ThreadPool::io().run( |
| 1673 | [ice = std::shared_ptr<IceTransport>(std::move(info->ice_))] {}); |
| 1674 | } |
| 1675 | } |
| 1676 | } |
| 1677 | |
| 1678 | void |
| 1679 | ConnectionManager::onDhtConnected(const dht::crypto::PublicKey& devicePk) |
| 1680 | { |
| 1681 | pimpl_->onDhtConnected(devicePk); |
| 1682 | } |
| 1683 | |
| 1684 | void |
| 1685 | ConnectionManager::onICERequest(onICERequestCallback&& cb) |
| 1686 | { |
| 1687 | pimpl_->iceReqCb_ = std::move(cb); |
| 1688 | } |
| 1689 | |
| 1690 | void |
| 1691 | ConnectionManager::onChannelRequest(ChannelRequestCallback&& cb) |
| 1692 | { |
| 1693 | pimpl_->channelReqCb_ = std::move(cb); |
| 1694 | } |
| 1695 | |
| 1696 | void |
| 1697 | ConnectionManager::onConnectionReady(ConnectionReadyCallback&& cb) |
| 1698 | { |
| 1699 | pimpl_->connReadyCb_ = std::move(cb); |
| 1700 | } |
| 1701 | |
| 1702 | void |
| 1703 | ConnectionManager::oniOSConnected(iOSConnectedCallback&& cb) |
| 1704 | { |
| 1705 | pimpl_->iOSConnectedCb_ = std::move(cb); |
| 1706 | } |
| 1707 | |
| 1708 | std::size_t |
| 1709 | ConnectionManager::activeSockets() const |
| 1710 | { |
| 1711 | std::lock_guard<std::mutex> lk(pimpl_->infosMtx_); |
| 1712 | return pimpl_->infos_.size(); |
| 1713 | } |
| 1714 | |
| 1715 | void |
| 1716 | ConnectionManager::monitor() const |
| 1717 | { |
| 1718 | std::lock_guard<std::mutex> lk(pimpl_->infosMtx_); |
| 1719 | auto logger = pimpl_->config_->logger; |
| 1720 | if (!logger) |
| 1721 | return; |
| 1722 | logger->debug("ConnectionManager current status:"); |
| 1723 | for (const auto& [_, ci] : pimpl_->infos_) { |
| 1724 | if (ci->socket_) |
| 1725 | ci->socket_->monitor(); |
| 1726 | } |
| 1727 | logger->debug("ConnectionManager end status."); |
| 1728 | } |
| 1729 | |
| 1730 | void |
| 1731 | ConnectionManager::connectivityChanged() |
| 1732 | { |
| 1733 | std::lock_guard<std::mutex> lk(pimpl_->infosMtx_); |
| 1734 | for (const auto& [_, ci] : pimpl_->infos_) { |
| 1735 | if (ci->socket_) |
| 1736 | ci->socket_->sendBeacon(); |
| 1737 | } |
| 1738 | } |
| 1739 | |
| 1740 | void |
| 1741 | ConnectionManager::getIceOptions(std::function<void(IceTransportOptions&&)> cb) noexcept |
| 1742 | { |
| 1743 | return pimpl_->getIceOptions(std::move(cb)); |
| 1744 | } |
| 1745 | |
| 1746 | IceTransportOptions |
| 1747 | ConnectionManager::getIceOptions() const noexcept |
| 1748 | { |
| 1749 | return pimpl_->getIceOptions(); |
| 1750 | } |
| 1751 | |
| 1752 | IpAddr |
| 1753 | ConnectionManager::getPublishedIpAddress(uint16_t family) const |
| 1754 | { |
| 1755 | return pimpl_->getPublishedIpAddress(family); |
| 1756 | } |
| 1757 | |
| 1758 | void |
| 1759 | ConnectionManager::setPublishedAddress(const IpAddr& ip_addr) |
| 1760 | { |
| 1761 | return pimpl_->setPublishedAddress(ip_addr); |
| 1762 | } |
| 1763 | |
| 1764 | void |
| 1765 | ConnectionManager::storeActiveIpAddress(std::function<void()>&& cb) |
| 1766 | { |
| 1767 | return pimpl_->storeActiveIpAddress(std::move(cb)); |
| 1768 | } |
| 1769 | |
| 1770 | std::shared_ptr<ConnectionManager::Config> |
| 1771 | ConnectionManager::getConfig() |
| 1772 | { |
| 1773 | return pimpl_->config_; |
| 1774 | } |
| 1775 | |
Amna | 31791e5 | 2023-08-03 12:40:57 -0400 | [diff] [blame] | 1776 | std::vector<std::map<std::string, std::string>> |
| 1777 | ConnectionManager::getConnectionList(const DeviceId& device) const |
| 1778 | { |
| 1779 | std::vector<std::map<std::string, std::string>> connectionsList; |
| 1780 | std::lock_guard<std::mutex> lk(pimpl_->infosMtx_); |
| 1781 | |
| 1782 | for (const auto& [key, ci] : pimpl_->infos_) { |
| 1783 | if (device && key.first != device) |
| 1784 | continue; |
| 1785 | std::map<std::string, std::string> connectionInfo; |
| 1786 | connectionInfo["id"] = callbackIdToString(key.first, key.second); |
Amna | 8242020 | 2023-08-15 16:27:18 -0400 | [diff] [blame] | 1787 | connectionInfo["device"] = key.first.toString(); |
Amna | 6c999d8 | 2023-08-15 15:19:41 -0400 | [diff] [blame] | 1788 | if (ci->tls_) { |
| 1789 | if (auto cert = ci->tls_->peerCertificate()) { |
| 1790 | connectionInfo["peer"] = cert->issuer->getId().toString(); |
| 1791 | } |
Amna | 31791e5 | 2023-08-03 12:40:57 -0400 | [diff] [blame] | 1792 | } |
| 1793 | if (ci->socket_) { |
| 1794 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::Connected)); |
| 1795 | } else if (ci->tls_) { |
| 1796 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::TLS)); |
| 1797 | } else if(ci->ice_) |
| 1798 | { |
| 1799 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::ICE)); |
| 1800 | } |
| 1801 | if (ci->tls_) { |
| 1802 | std::string remoteAddress = ci->tls_->getRemoteAddress(); |
| 1803 | std::string remoteAddressIp = remoteAddress.substr(0, remoteAddress.find(':')); |
| 1804 | std::string remoteAddressPort = remoteAddress.substr(remoteAddress.find(':') + 1); |
| 1805 | connectionInfo["remoteAdress"] = remoteAddressIp; |
| 1806 | connectionInfo["remotePort"] = remoteAddressPort; |
| 1807 | } |
| 1808 | connectionsList.emplace_back(std::move(connectionInfo)); |
| 1809 | } |
| 1810 | |
| 1811 | if (device) { |
| 1812 | auto it = pimpl_->pendingOperations_.find(device); |
| 1813 | if (it != pimpl_->pendingOperations_.end()) { |
| 1814 | const auto& po = it->second; |
| 1815 | for (const auto& [vid, ci] : po.connecting) { |
| 1816 | std::map<std::string, std::string> connectionInfo; |
| 1817 | connectionInfo["id"] = callbackIdToString(device, vid); |
| 1818 | connectionInfo["deviceId"] = vid; |
| 1819 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::Connecting)); |
| 1820 | connectionsList.emplace_back(std::move(connectionInfo)); |
| 1821 | } |
| 1822 | |
| 1823 | for (const auto& [vid, ci] : po.waiting) { |
| 1824 | std::map<std::string, std::string> connectionInfo; |
| 1825 | connectionInfo["id"] = callbackIdToString(device, vid); |
| 1826 | connectionInfo["deviceId"] = vid; |
| 1827 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::Waiting)); |
| 1828 | connectionsList.emplace_back(std::move(connectionInfo)); |
| 1829 | } |
| 1830 | } |
| 1831 | } |
| 1832 | else { |
| 1833 | for (const auto& [key, po] : pimpl_->pendingOperations_) { |
| 1834 | for (const auto& [vid, ci] : po.connecting) { |
| 1835 | std::map<std::string, std::string> connectionInfo; |
| 1836 | connectionInfo["id"] = callbackIdToString(device, vid); |
| 1837 | connectionInfo["deviceId"] = vid; |
| 1838 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::Connecting)); |
| 1839 | connectionsList.emplace_back(std::move(connectionInfo)); |
| 1840 | } |
| 1841 | |
| 1842 | for (const auto& [vid, ci] : po.waiting) { |
| 1843 | std::map<std::string, std::string> connectionInfo; |
| 1844 | connectionInfo["id"] = callbackIdToString(device, vid); |
| 1845 | connectionInfo["deviceId"] = vid; |
| 1846 | connectionInfo["status"] = std::to_string(static_cast<int>(ConnectionStatus::Waiting)); |
| 1847 | connectionsList.emplace_back(std::move(connectionInfo)); |
| 1848 | } |
| 1849 | } |
| 1850 | } |
| 1851 | return connectionsList; |
| 1852 | } |
| 1853 | |
| 1854 | std::vector<std::map<std::string, std::string>> |
| 1855 | ConnectionManager::getChannelList(const std::string& connectionId) const |
| 1856 | { |
| 1857 | std::lock_guard<std::mutex> lk(pimpl_->infosMtx_); |
| 1858 | CallbackId cbid = parseCallbackId(connectionId); |
| 1859 | if (pimpl_->infos_.count(cbid) > 0) { |
| 1860 | return pimpl_->infos_[cbid]->socket_->getChannelList(); |
| 1861 | } else { |
| 1862 | return {}; |
| 1863 | } |
| 1864 | } |
| 1865 | |
Sébastien Blin | 464bdff | 2023-07-19 08:02:53 -0400 | [diff] [blame] | 1866 | } // namespace dhtnet |