Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 1 | #pragma once |
| 2 | |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 3 | #include <boost/container/flat_map.hpp> |
| 4 | #include <boost/uuid/uuid.hpp> |
| 5 | #include <boost/uuid/uuid_generators.hpp> |
| 6 | #include <boost/uuid/uuid_io.hpp> |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 7 | #include <dbus_singleton.hpp> |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 8 | #include <nlohmann/json.hpp> |
| 9 | #include <pam_authenticate.hpp> |
| 10 | #include <random> |
RAJESWARAN THILLAIGOVINDAN | 7052517 | 2019-07-09 13:15:05 -0500 | [diff] [blame] | 11 | #include <sdbusplus/bus/match.hpp> |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 12 | |
| 13 | #include "crow/logging.h" |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 14 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 15 | namespace crow |
| 16 | { |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 17 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 18 | namespace persistent_data |
| 19 | { |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 20 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 21 | enum class PersistenceType |
| 22 | { |
| 23 | TIMEOUT, // User session times out after a predetermined amount of time |
| 24 | SINGLE_REQUEST // User times out once this request is completed. |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 25 | }; |
| 26 | |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 27 | constexpr char const* userService = "xyz.openbmc_project.User.Manager"; |
| 28 | constexpr char const* userObjPath = "/xyz/openbmc_project/user"; |
| 29 | constexpr char const* userAttrIface = "xyz.openbmc_project.User.Attributes"; |
| 30 | constexpr char const* dbusPropertiesIface = "org.freedesktop.DBus.Properties"; |
| 31 | |
| 32 | class SessionStore; |
| 33 | |
| 34 | struct UserRoleMap |
| 35 | { |
| 36 | using GetManagedPropertyType = |
| 37 | boost::container::flat_map<std::string, |
| 38 | std::variant<std::string, bool>>; |
| 39 | |
| 40 | using InterfacesPropertiesType = |
| 41 | boost::container::flat_map<std::string, GetManagedPropertyType>; |
| 42 | |
| 43 | using GetManagedObjectsType = std::vector< |
| 44 | std::pair<sdbusplus::message::object_path, InterfacesPropertiesType>>; |
| 45 | |
| 46 | static UserRoleMap& getInstance() |
| 47 | { |
| 48 | static UserRoleMap userRoleMap; |
| 49 | return userRoleMap; |
| 50 | } |
| 51 | |
| 52 | UserRoleMap(const UserRoleMap&) = delete; |
| 53 | UserRoleMap& operator=(const UserRoleMap&) = delete; |
| 54 | |
| 55 | std::string getUserRole(std::string_view name) |
| 56 | { |
| 57 | auto it = roleMap.find(std::string(name)); |
| 58 | if (it == roleMap.end()) |
| 59 | { |
| 60 | BMCWEB_LOG_ERROR << "User name " << name |
| 61 | << " is not found in the UserRoleMap."; |
| 62 | return ""; |
| 63 | } |
| 64 | return it->second; |
| 65 | } |
| 66 | |
| 67 | std::string |
| 68 | extractUserRole(const InterfacesPropertiesType& interfacesProperties) |
| 69 | { |
| 70 | auto iface = interfacesProperties.find(userAttrIface); |
| 71 | if (iface == interfacesProperties.end()) |
| 72 | { |
| 73 | return {}; |
| 74 | } |
| 75 | |
| 76 | auto& properties = iface->second; |
| 77 | auto property = properties.find("UserPrivilege"); |
| 78 | if (property == properties.end()) |
| 79 | { |
| 80 | return {}; |
| 81 | } |
| 82 | |
| 83 | const std::string* role = std::get_if<std::string>(&property->second); |
| 84 | if (role == nullptr) |
| 85 | { |
| 86 | BMCWEB_LOG_ERROR << "UserPrivilege property value is null"; |
| 87 | return {}; |
| 88 | } |
| 89 | |
| 90 | return *role; |
| 91 | } |
| 92 | |
| 93 | private: |
| 94 | void userAdded(sdbusplus::message::message& m) |
| 95 | { |
| 96 | sdbusplus::message::object_path objPath; |
| 97 | InterfacesPropertiesType interfacesProperties; |
| 98 | |
| 99 | try |
| 100 | { |
| 101 | m.read(objPath, interfacesProperties); |
| 102 | } |
| 103 | catch (const sdbusplus::exception::SdBusError& e) |
| 104 | { |
| 105 | BMCWEB_LOG_ERROR << "Failed to parse user add signal." |
| 106 | << "ERROR=" << e.what() |
| 107 | << "REPLY_SIG=" << m.get_signature(); |
| 108 | return; |
| 109 | } |
| 110 | BMCWEB_LOG_DEBUG << "obj path = " << objPath.str; |
| 111 | |
| 112 | std::size_t lastPos = objPath.str.rfind("/"); |
| 113 | if (lastPos == std::string::npos) |
| 114 | { |
| 115 | return; |
| 116 | }; |
| 117 | |
| 118 | std::string name = objPath.str.substr(lastPos + 1); |
| 119 | std::string role = this->extractUserRole(interfacesProperties); |
| 120 | |
| 121 | // Insert the newly added user name and the role |
| 122 | auto res = roleMap.emplace(name, role); |
| 123 | if (res.second == false) |
| 124 | { |
| 125 | BMCWEB_LOG_ERROR << "Insertion of the user=\"" << name |
| 126 | << "\" in the roleMap failed."; |
| 127 | return; |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | void userRemoved(sdbusplus::message::message& m) |
| 132 | { |
| 133 | sdbusplus::message::object_path objPath; |
| 134 | |
| 135 | try |
| 136 | { |
| 137 | m.read(objPath); |
| 138 | } |
| 139 | catch (const sdbusplus::exception::SdBusError& e) |
| 140 | { |
| 141 | BMCWEB_LOG_ERROR << "Failed to parse user delete signal."; |
| 142 | BMCWEB_LOG_ERROR << "ERROR=" << e.what() |
| 143 | << "REPLY_SIG=" << m.get_signature(); |
| 144 | return; |
| 145 | } |
| 146 | |
| 147 | BMCWEB_LOG_DEBUG << "obj path = " << objPath.str; |
| 148 | |
| 149 | std::size_t lastPos = objPath.str.rfind("/"); |
| 150 | if (lastPos == std::string::npos) |
| 151 | { |
| 152 | return; |
| 153 | }; |
| 154 | |
| 155 | // User name must be atleast 1 char in length. |
| 156 | if ((lastPos + 1) >= objPath.str.length()) |
| 157 | { |
| 158 | return; |
| 159 | } |
| 160 | |
| 161 | std::string name = objPath.str.substr(lastPos + 1); |
| 162 | |
| 163 | roleMap.erase(name); |
| 164 | } |
| 165 | |
| 166 | void userPropertiesChanged(sdbusplus::message::message& m) |
| 167 | { |
| 168 | std::string interface; |
| 169 | GetManagedPropertyType changedProperties; |
| 170 | m.read(interface, changedProperties); |
| 171 | const std::string path = m.get_path(); |
| 172 | |
| 173 | BMCWEB_LOG_DEBUG << "Object Path = \"" << path << "\""; |
| 174 | |
| 175 | std::size_t lastPos = path.rfind("/"); |
| 176 | if (lastPos == std::string::npos) |
| 177 | { |
| 178 | return; |
| 179 | }; |
| 180 | |
| 181 | // User name must be at least 1 char in length. |
| 182 | if ((lastPos + 1) == path.length()) |
| 183 | { |
| 184 | return; |
| 185 | } |
| 186 | |
| 187 | std::string user = path.substr(lastPos + 1); |
| 188 | |
| 189 | BMCWEB_LOG_DEBUG << "User Name = \"" << user << "\""; |
| 190 | |
| 191 | auto index = changedProperties.find("UserPrivilege"); |
| 192 | if (index == changedProperties.end()) |
| 193 | { |
| 194 | return; |
| 195 | } |
| 196 | |
| 197 | const std::string* role = std::get_if<std::string>(&index->second); |
| 198 | if (role == nullptr) |
| 199 | { |
| 200 | return; |
| 201 | } |
| 202 | BMCWEB_LOG_DEBUG << "Role = \"" << *role << "\""; |
| 203 | |
| 204 | auto it = roleMap.find(user); |
| 205 | if (it == roleMap.end()) |
| 206 | { |
| 207 | BMCWEB_LOG_ERROR << "User Name = \"" << user |
| 208 | << "\" is not found. But, received " |
| 209 | "propertiesChanged signal"; |
| 210 | return; |
| 211 | } |
| 212 | it->second = *role; |
| 213 | } |
| 214 | |
| 215 | UserRoleMap() : |
| 216 | userAddedSignal( |
| 217 | *crow::connections::systemBus, |
| 218 | sdbusplus::bus::match::rules::interfacesAdded(userObjPath), |
| 219 | [this](sdbusplus::message::message& m) { |
| 220 | BMCWEB_LOG_DEBUG << "User Added"; |
| 221 | this->userAdded(m); |
| 222 | }), |
| 223 | userRemovedSignal( |
| 224 | *crow::connections::systemBus, |
| 225 | sdbusplus::bus::match::rules::interfacesRemoved(userObjPath), |
| 226 | [this](sdbusplus::message::message& m) { |
| 227 | BMCWEB_LOG_DEBUG << "User Removed"; |
| 228 | this->userRemoved(m); |
| 229 | }), |
| 230 | userPropertiesChangedSignal( |
| 231 | *crow::connections::systemBus, |
| 232 | sdbusplus::bus::match::rules::path_namespace(userObjPath) + |
| 233 | sdbusplus::bus::match::rules::type::signal() + |
| 234 | sdbusplus::bus::match::rules::member("PropertiesChanged") + |
| 235 | sdbusplus::bus::match::rules::interface(dbusPropertiesIface) + |
| 236 | sdbusplus::bus::match::rules::argN(0, userAttrIface), |
| 237 | [this](sdbusplus::message::message& m) { |
| 238 | BMCWEB_LOG_DEBUG << "Properties Changed"; |
| 239 | this->userPropertiesChanged(m); |
| 240 | }) |
| 241 | { |
| 242 | crow::connections::systemBus->async_method_call( |
| 243 | [this](boost::system::error_code ec, |
| 244 | GetManagedObjectsType& managedObjects) { |
| 245 | if (ec) |
| 246 | { |
| 247 | BMCWEB_LOG_DEBUG << "User manager call failed, ignoring"; |
| 248 | return; |
| 249 | } |
| 250 | |
| 251 | for (auto& managedObj : managedObjects) |
| 252 | { |
| 253 | std::size_t lastPos = managedObj.first.str.rfind("/"); |
| 254 | if (lastPos == std::string::npos) |
| 255 | { |
| 256 | continue; |
| 257 | }; |
| 258 | std::string name = managedObj.first.str.substr(lastPos + 1); |
| 259 | std::string role = extractUserRole(managedObj.second); |
| 260 | roleMap.emplace(name, role); |
| 261 | } |
| 262 | }, |
| 263 | userService, userObjPath, "org.freedesktop.DBus.ObjectManager", |
| 264 | "GetManagedObjects"); |
| 265 | } |
| 266 | |
| 267 | boost::container::flat_map<std::string, std::string> roleMap; |
| 268 | sdbusplus::bus::match_t userAddedSignal; |
| 269 | sdbusplus::bus::match_t userRemovedSignal; |
| 270 | sdbusplus::bus::match_t userPropertiesChangedSignal; |
| 271 | }; |
| 272 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 273 | struct UserSession |
| 274 | { |
| 275 | std::string uniqueId; |
| 276 | std::string sessionToken; |
| 277 | std::string username; |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 278 | std::string userRole; |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 279 | std::string csrfToken; |
| 280 | std::chrono::time_point<std::chrono::steady_clock> lastUpdated; |
| 281 | PersistenceType persistence; |
Kowalski, Kamil | 5cef0f7 | 2018-02-15 15:26:51 +0100 | [diff] [blame] | 282 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 283 | /** |
| 284 | * @brief Fills object with data from UserSession's JSON representation |
| 285 | * |
| 286 | * This replaces nlohmann's from_json to ensure no-throw approach |
| 287 | * |
| 288 | * @param[in] j JSON object from which data should be loaded |
| 289 | * |
| 290 | * @return a shared pointer if data has been loaded properly, nullptr |
| 291 | * otherwise |
| 292 | */ |
| 293 | static std::shared_ptr<UserSession> fromJson(const nlohmann::json& j) |
| 294 | { |
| 295 | std::shared_ptr<UserSession> userSession = |
| 296 | std::make_shared<UserSession>(); |
| 297 | for (const auto& element : j.items()) |
| 298 | { |
| 299 | const std::string* thisValue = |
| 300 | element.value().get_ptr<const std::string*>(); |
| 301 | if (thisValue == nullptr) |
| 302 | { |
| 303 | BMCWEB_LOG_ERROR << "Error reading persistent store. Property " |
| 304 | << element.key() << " was not of type string"; |
| 305 | return nullptr; |
| 306 | } |
| 307 | if (element.key() == "unique_id") |
| 308 | { |
| 309 | userSession->uniqueId = *thisValue; |
| 310 | } |
| 311 | else if (element.key() == "session_token") |
| 312 | { |
| 313 | userSession->sessionToken = *thisValue; |
| 314 | } |
| 315 | else if (element.key() == "csrf_token") |
| 316 | { |
| 317 | userSession->csrfToken = *thisValue; |
| 318 | } |
| 319 | else if (element.key() == "username") |
| 320 | { |
| 321 | userSession->username = *thisValue; |
| 322 | } |
| 323 | else |
| 324 | { |
| 325 | BMCWEB_LOG_ERROR |
| 326 | << "Got unexpected property reading persistent file: " |
| 327 | << element.key(); |
| 328 | return nullptr; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | // For now, sessions that were persisted through a reboot get their idle |
| 333 | // timer reset. This could probably be overcome with a better |
| 334 | // understanding of wall clock time and steady timer time, possibly |
| 335 | // persisting values with wall clock time instead of steady timer, but |
| 336 | // the tradeoffs of all the corner cases involved are non-trivial, so |
| 337 | // this is done temporarily |
| 338 | userSession->lastUpdated = std::chrono::steady_clock::now(); |
| 339 | userSession->persistence = PersistenceType::TIMEOUT; |
| 340 | |
| 341 | return userSession; |
Kowalski, Kamil | 5cef0f7 | 2018-02-15 15:26:51 +0100 | [diff] [blame] | 342 | } |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 343 | }; |
| 344 | |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 345 | class Middleware; |
| 346 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 347 | class SessionStore |
| 348 | { |
| 349 | public: |
| 350 | std::shared_ptr<UserSession> generateUserSession( |
Ed Tanous | 39e7750 | 2019-03-04 17:35:53 -0800 | [diff] [blame] | 351 | const std::string_view username, |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 352 | PersistenceType persistence = PersistenceType::TIMEOUT) |
| 353 | { |
| 354 | // TODO(ed) find a secure way to not generate session identifiers if |
| 355 | // persistence is set to SINGLE_REQUEST |
| 356 | static constexpr std::array<char, 62> alphanum = { |
Joseph Reynolds | 368b1d4 | 2019-08-15 15:29:06 -0500 | [diff] [blame] | 357 | '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', |
| 358 | 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', |
| 359 | 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 360 | 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', |
| 361 | 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}; |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 362 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 363 | // entropy: 30 characters, 62 possibilities. log2(62^30) = 178 bits of |
| 364 | // entropy. OWASP recommends at least 60 |
| 365 | // https://www.owasp.org/index.php/Session_Management_Cheat_Sheet#Session_ID_Entropy |
| 366 | std::string sessionToken; |
| 367 | sessionToken.resize(20, '0'); |
Ed Tanous | b01bf29 | 2019-03-25 19:25:26 +0000 | [diff] [blame] | 368 | std::uniform_int_distribution<int> dist(0, alphanum.size() - 1); |
| 369 | for (int i = 0; i < sessionToken.size(); ++i) |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 370 | { |
| 371 | sessionToken[i] = alphanum[dist(rd)]; |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 372 | } |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 373 | // Only need csrf tokens for cookie based auth, token doesn't matter |
| 374 | std::string csrfToken; |
| 375 | csrfToken.resize(20, '0'); |
Ed Tanous | b01bf29 | 2019-03-25 19:25:26 +0000 | [diff] [blame] | 376 | for (int i = 0; i < csrfToken.size(); ++i) |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 377 | { |
| 378 | csrfToken[i] = alphanum[dist(rd)]; |
| 379 | } |
| 380 | |
| 381 | std::string uniqueId; |
| 382 | uniqueId.resize(10, '0'); |
Ed Tanous | b01bf29 | 2019-03-25 19:25:26 +0000 | [diff] [blame] | 383 | for (int i = 0; i < uniqueId.size(); ++i) |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 384 | { |
| 385 | uniqueId[i] = alphanum[dist(rd)]; |
| 386 | } |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 387 | |
| 388 | // Get the User Privilege |
| 389 | const std::string& role = |
| 390 | UserRoleMap::getInstance().getUserRole(username); |
| 391 | |
| 392 | BMCWEB_LOG_DEBUG << "user name=\"" << username << "\" role = " << role; |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 393 | auto session = std::make_shared<UserSession>(UserSession{ |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 394 | uniqueId, sessionToken, std::string(username), role, csrfToken, |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 395 | std::chrono::steady_clock::now(), persistence}); |
| 396 | auto it = authTokens.emplace(std::make_pair(sessionToken, session)); |
| 397 | // Only need to write to disk if session isn't about to be destroyed. |
| 398 | needWrite = persistence == PersistenceType::TIMEOUT; |
| 399 | return it.first->second; |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 400 | } |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 401 | |
| 402 | std::shared_ptr<UserSession> |
Ed Tanous | 39e7750 | 2019-03-04 17:35:53 -0800 | [diff] [blame] | 403 | loginSessionByToken(const std::string_view token) |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 404 | { |
| 405 | applySessionTimeouts(); |
| 406 | auto sessionIt = authTokens.find(std::string(token)); |
| 407 | if (sessionIt == authTokens.end()) |
| 408 | { |
| 409 | return nullptr; |
| 410 | } |
| 411 | std::shared_ptr<UserSession> userSession = sessionIt->second; |
| 412 | userSession->lastUpdated = std::chrono::steady_clock::now(); |
| 413 | return userSession; |
| 414 | } |
| 415 | |
Ed Tanous | 39e7750 | 2019-03-04 17:35:53 -0800 | [diff] [blame] | 416 | std::shared_ptr<UserSession> getSessionByUid(const std::string_view uid) |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 417 | { |
| 418 | applySessionTimeouts(); |
| 419 | // TODO(Ed) this is inefficient |
| 420 | auto sessionIt = authTokens.begin(); |
| 421 | while (sessionIt != authTokens.end()) |
| 422 | { |
| 423 | if (sessionIt->second->uniqueId == uid) |
| 424 | { |
| 425 | return sessionIt->second; |
| 426 | } |
| 427 | sessionIt++; |
| 428 | } |
| 429 | return nullptr; |
| 430 | } |
| 431 | |
| 432 | void removeSession(std::shared_ptr<UserSession> session) |
| 433 | { |
| 434 | authTokens.erase(session->sessionToken); |
| 435 | needWrite = true; |
| 436 | } |
| 437 | |
| 438 | std::vector<const std::string*> getUniqueIds( |
| 439 | bool getAll = true, |
| 440 | const PersistenceType& type = PersistenceType::SINGLE_REQUEST) |
| 441 | { |
| 442 | applySessionTimeouts(); |
| 443 | |
| 444 | std::vector<const std::string*> ret; |
| 445 | ret.reserve(authTokens.size()); |
| 446 | for (auto& session : authTokens) |
| 447 | { |
| 448 | if (getAll || type == session.second->persistence) |
| 449 | { |
| 450 | ret.push_back(&session.second->uniqueId); |
| 451 | } |
| 452 | } |
| 453 | return ret; |
| 454 | } |
| 455 | |
| 456 | bool needsWrite() |
| 457 | { |
| 458 | return needWrite; |
| 459 | } |
Ed Tanous | b01bf29 | 2019-03-25 19:25:26 +0000 | [diff] [blame] | 460 | int getTimeoutInSeconds() const |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 461 | { |
| 462 | return std::chrono::seconds(timeoutInMinutes).count(); |
| 463 | }; |
| 464 | |
| 465 | // Persistent data middleware needs to be able to serialize our authTokens |
| 466 | // structure, which is private |
| 467 | friend Middleware; |
| 468 | |
| 469 | static SessionStore& getInstance() |
| 470 | { |
| 471 | static SessionStore sessionStore; |
| 472 | return sessionStore; |
| 473 | } |
| 474 | |
| 475 | SessionStore(const SessionStore&) = delete; |
| 476 | SessionStore& operator=(const SessionStore&) = delete; |
| 477 | |
| 478 | private: |
| 479 | SessionStore() : timeoutInMinutes(60) |
| 480 | { |
| 481 | } |
| 482 | |
| 483 | void applySessionTimeouts() |
| 484 | { |
| 485 | auto timeNow = std::chrono::steady_clock::now(); |
| 486 | if (timeNow - lastTimeoutUpdate > std::chrono::minutes(1)) |
| 487 | { |
| 488 | lastTimeoutUpdate = timeNow; |
| 489 | auto authTokensIt = authTokens.begin(); |
| 490 | while (authTokensIt != authTokens.end()) |
| 491 | { |
| 492 | if (timeNow - authTokensIt->second->lastUpdated >= |
| 493 | timeoutInMinutes) |
| 494 | { |
| 495 | authTokensIt = authTokens.erase(authTokensIt); |
| 496 | needWrite = true; |
| 497 | } |
| 498 | else |
| 499 | { |
| 500 | authTokensIt++; |
| 501 | } |
| 502 | } |
| 503 | } |
| 504 | } |
Ratan Gupta | 12c04ef | 2019-04-03 10:08:11 +0530 | [diff] [blame] | 505 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 506 | std::chrono::time_point<std::chrono::steady_clock> lastTimeoutUpdate; |
| 507 | boost::container::flat_map<std::string, std::shared_ptr<UserSession>> |
| 508 | authTokens; |
| 509 | std::random_device rd; |
| 510 | bool needWrite{false}; |
| 511 | std::chrono::minutes timeoutInMinutes; |
Kowalski, Kamil | 2b7981f | 2018-01-31 13:24:59 +0100 | [diff] [blame] | 512 | }; |
| 513 | |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 514 | } // namespace persistent_data |
| 515 | } // namespace crow |
Borawski.Lukasz | 4b1b868 | 2018-04-04 12:50:16 +0200 | [diff] [blame] | 516 | |
| 517 | // to_json(...) definition for objects of UserSession type |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 518 | namespace nlohmann |
| 519 | { |
Borawski.Lukasz | 4b1b868 | 2018-04-04 12:50:16 +0200 | [diff] [blame] | 520 | template <> |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 521 | struct adl_serializer<std::shared_ptr<crow::persistent_data::UserSession>> |
| 522 | { |
| 523 | static void |
| 524 | to_json(nlohmann::json& j, |
| 525 | const std::shared_ptr<crow::persistent_data::UserSession>& p) |
| 526 | { |
| 527 | if (p->persistence != |
| 528 | crow::persistent_data::PersistenceType::SINGLE_REQUEST) |
| 529 | { |
| 530 | j = nlohmann::json{{"unique_id", p->uniqueId}, |
| 531 | {"session_token", p->sessionToken}, |
| 532 | {"username", p->username}, |
| 533 | {"csrf_token", p->csrfToken}}; |
| 534 | } |
Borawski.Lukasz | 4b1b868 | 2018-04-04 12:50:16 +0200 | [diff] [blame] | 535 | } |
Borawski.Lukasz | 4b1b868 | 2018-04-04 12:50:16 +0200 | [diff] [blame] | 536 | }; |
Ed Tanous | 1abe55e | 2018-09-05 08:30:59 -0700 | [diff] [blame] | 537 | } // namespace nlohmann |