107 lines
3.6 KiB
C++
107 lines
3.6 KiB
C++
#include <SecuritySettingsService.h>
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SecuritySettingsService::SecuritySettingsService(AsyncWebServer* server, FS* fs) :
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AdminSettingsService(server, fs, this, SECURITY_SETTINGS_PATH, SECURITY_SETTINGS_FILE),
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SecurityManager() {
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}
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SecuritySettingsService::~SecuritySettingsService() {
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}
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void SecuritySettingsService::readFromJsonObject(JsonObject& root) {
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// secret
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_jwtHandler.setSecret(root["jwt_secret"] | DEFAULT_JWT_SECRET);
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// users
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_settings.users.clear();
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if (root["users"].is<JsonArray>()) {
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for (JsonVariant user : root["users"].as<JsonArray>()) {
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_settings.users.push_back(User(user["username"], user["password"], user["admin"]));
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}
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} else {
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_settings.users.push_back(User(DEFAULT_ADMIN_USERNAME, DEFAULT_ADMIN_USERNAME, true));
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_settings.users.push_back(User(DEFAULT_GUEST_USERNAME, DEFAULT_GUEST_USERNAME, false));
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}
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}
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void SecuritySettingsService::writeToJsonObject(JsonObject& root) {
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// secret
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root["jwt_secret"] = _jwtHandler.getSecret();
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// users
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JsonArray users = root.createNestedArray("users");
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for (User _user : _settings.users) {
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JsonObject user = users.createNestedObject();
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user["username"] = _user.username;
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user["password"] = _user.password;
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user["admin"] = _user.admin;
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}
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}
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Authentication SecuritySettingsService::authenticateRequest(AsyncWebServerRequest *request) {
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AsyncWebHeader *authorizationHeader = request->getHeader(AUTHORIZATION_HEADER);
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if (authorizationHeader) {
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String value = authorizationHeader->value();
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if (value.startsWith(AUTHORIZATION_HEADER_PREFIX)) {
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value = value.substring(AUTHORIZATION_HEADER_PREFIX_LEN);
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return authenticateJWT(value);
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}
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}
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return Authentication();
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}
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Authentication SecuritySettingsService::authenticateJWT(String jwt) {
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DynamicJsonDocument payloadDocument(MAX_JWT_SIZE);
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_jwtHandler.parseJWT(jwt, payloadDocument);
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if (payloadDocument.is<JsonObject>()) {
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JsonObject parsedPayload = payloadDocument.as<JsonObject>();
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String username = parsedPayload["username"];
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for (User _user : _settings.users) {
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if (_user.username == username && validatePayload(parsedPayload, &_user)) {
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return Authentication(_user);
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}
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}
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}
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return Authentication();
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}
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Authentication SecuritySettingsService::authenticate(String username, String password) {
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for (User _user : _settings.users) {
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if (_user.username == username && _user.password == password) {
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return Authentication(_user);
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}
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}
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return Authentication();
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}
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inline void populateJWTPayload(JsonObject &payload, User *user) {
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payload["username"] = user->username;
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payload["admin"] = user->admin;
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}
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boolean SecuritySettingsService::validatePayload(JsonObject &parsedPayload, User *user) {
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DynamicJsonDocument _jsonDocument(MAX_JWT_SIZE);
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JsonObject payload = _jsonDocument.to<JsonObject>();
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populateJWTPayload(payload, user);
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return payload == parsedPayload;
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}
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String SecuritySettingsService::generateJWT(User *user) {
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DynamicJsonDocument _jsonDocument(MAX_JWT_SIZE);
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JsonObject payload = _jsonDocument.to<JsonObject>();
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populateJWTPayload(payload, user);
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return _jwtHandler.buildJWT(payload);
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}
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ArRequestHandlerFunction SecuritySettingsService::wrapRequest(ArRequestHandlerFunction onRequest,
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AuthenticationPredicate predicate) {
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return [this, onRequest, predicate](AsyncWebServerRequest *request) {
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Authentication authentication = authenticateRequest(request);
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if (!predicate(authentication)) {
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request->send(401);
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return;
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}
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onRequest(request);
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};
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}
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