Add extracted tools: CitrineOS, OpenOCPP, ShapeShifter

- CitrineOS core extracted (CSMS OCPP 2.0.1)
- OpenOCPP extracted (firmware OCPP 1.6J/2.0.1)
- ShapeShifter library installed (pip install -e)
- ShapeShifter specification extracted
- EVerest extracted

TODO updated with progress

tools/EVerest-main/modules/EVSE/Auth/.gitignore

@@ -0,0 +1 @@
+tests.txt

tools/EVerest-main/modules/EVSE/Auth/Auth.cpp

@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+#include <everest/helpers/helpers.hpp>
+
+#include <utility>
+
+#include "Auth.hpp"
+#include <everest/logging.hpp>
+
+namespace module {
+
+void Auth::init() {
+    invoke_init(*p_main);
+    invoke_init(*p_reservation);
+
+    this->auth_handler = std::make_unique<AuthHandler>(
+        string_to_selection_algorithm(this->config.selection_algorithm), this->config.connection_timeout,
+        this->config.plug_in_timeout_enabled, this->config.prioritize_authorization_over_stopping_transaction,
+        this->config.ignore_connector_faults, this->info.id,
+        (!this->r_kvs.empty() ? this->r_kvs.at(0).get() : nullptr));
+
+    for (const auto& token_provider : this->r_token_provider) {
+        token_provider->subscribe_provided_token([this](ProvidedIdToken provided_token) {
+            {
+                auto state = this->event_state.handle();
+                if (!state->started) {
+                    EVLOG_warning << "Auth not fully initialized. Discarding provided token";
+                    return;
+                }
+            }
+            std::thread t([this, provided_token]() { this->auth_handler->on_token(provided_token); });
+            t.detach();
+        });
+    }
+    for (const auto& token_validator : this->r_token_validator) {
+        token_validator->subscribe_validate_result_update([this](ValidationResultUpdate validation_result_update) {
+            {
+                auto state = this->event_state.handle();
+                if (!state->started) {
+                    EVLOG_warning << "Auth not fully initialized. Discarding validation result update";
+                    return;
+                }
+            }
+            this->auth_handler->handle_token_validation_result_update(validation_result_update);
+        });
+    }
+
+    // Subscribe to session events and errors in init() so we don't miss any events
+    // Events received before ready() are queued.
+    int32_t evse_index = 0;
+    for (const auto& evse_manager : this->r_evse_manager) {
+        const int32_t evse_idx = evse_index;
+
+        evse_manager->subscribe_session_event([this, evse_idx](SessionEvent session_event) {
+            {
+                auto state = this->event_state.handle();
+                if (!state->started) {
+                    EVLOG_debug << "Auth not fully initialized, but received a session event on evse_index: "
+                                << evse_idx << " that will be queued up: " << session_event.event;
+                    state->event_queue.emplace(evse_idx, session_event);
+                    return;
+                }
+            }
+            this->auth_handler->handle_session_event(this->auth_handler->get_evse_id_by_index(evse_idx), session_event);
+        });
+
+        evse_manager->subscribe_error(
+            "evse_manager/Inoperative",
+            [this, evse_idx](const Everest::error::Error& error) {
+                {
+                    auto state = this->event_state.handle();
+                    if (!state->started) {
+                        EVLOG_debug << "Auth not fully initialized, queuing permanent fault raised for evse_index: "
+                                    << evse_idx;
+                        state->event_queue.emplace(evse_idx, PermanentFaultRaised{1});
+                        return;
+                    }
+                }
+                this->auth_handler->handle_permanent_fault_raised(this->auth_handler->get_evse_id_by_index(evse_idx),
+                                                                  1);
+            },
+            [this, evse_idx](const Everest::error::Error& error) {
+                {
+                    auto state = this->event_state.handle();
+                    if (!state->started) {
+                        EVLOG_debug << "Auth not fully initialized, queuing permanent fault cleared for evse_index: "
+                                    << evse_idx;
+                        state->event_queue.emplace(evse_idx, PermanentFaultCleared{1});
+                        return;
+                    }
+                }
+                this->auth_handler->handle_permanent_fault_cleared(this->auth_handler->get_evse_id_by_index(evse_idx),
+                                                                   1);
+            });
+
+        evse_index++;
+    }
+}
+
+void Auth::ready() {
+    invoke_ready(*p_main);
+    invoke_ready(*p_reservation);
+
+    int32_t evse_index = 0;
+    for (const auto& evse_manager : this->r_evse_manager) {
+        const int32_t evse_id = evse_manager->call_get_evse().id;
+        std::vector<Connector> connectors;
+        for (const auto& connector : evse_manager->call_get_evse().connectors) {
+            connectors.push_back(
+                Connector(connector.id, connector.type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown)));
+        }
+
+        this->auth_handler->init_evse(evse_id, evse_index, connectors);
+
+        evse_index++;
+    }
+
+    this->auth_handler->register_publish_token_validation_status_callback(
+        [this](const ProvidedIdToken& token, TokenValidationStatus status,
+               const std::vector<MessageContent>& tariff_messages) {
+            this->p_main->publish_token_validation_status({token, status, tariff_messages});
+        });
+
+    this->auth_handler->register_notify_evse_callback(
+        [this](const int evse_index, const ProvidedIdToken& provided_token, const ValidationResult& validation_result) {
+            this->r_evse_manager.at(evse_index)->call_authorize_response(provided_token, validation_result);
+        });
+    this->auth_handler->register_withdraw_authorization_callback(
+        [this](const int32_t evse_index) { this->r_evse_manager.at(evse_index)->call_withdraw_authorization(); });
+    this->auth_handler->register_validate_token_callback([this](const ProvidedIdToken& provided_token) {
+        std::vector<ValidationResult> validation_results;
+        for (const auto& token_validator : this->r_token_validator) {
+            try {
+                const auto result = token_validator->call_validate_token(provided_token);
+                validation_results.push_back(result);
+                // TODO: This is very broad catch, make it more narrow when the everest-framework error handling will be
+                // established
+            } catch (const std::exception& e) {
+                EVLOG_warning << "Exception during validating token: " << e.what();
+                ValidationResult validation_result;
+                validation_result.authorization_status = AuthorizationStatus::Unknown;
+                validation_results.push_back(validation_result);
+            }
+        }
+        return validation_results;
+    });
+    this->auth_handler->register_stop_transaction_callback(
+        [this](const int32_t evse_index, const StopTransactionRequest& request) {
+            this->r_evse_manager.at(evse_index)->call_stop_transaction(request);
+        });
+    this->auth_handler->register_reserved_callback(
+        [this](const std::optional<int32_t> evse_id, const int32_t& reservation_id) {
+            // Only call the evse manager to store the reservation if it is done for a specific evse.
+            if (evse_id.has_value()) {
+                EVLOG_info << "Call reserved callback for evse id " << evse_id.value();
+
+                if (!this->r_evse_manager.at(evse_id.value() - 1)->call_reserve(reservation_id)) {
+                    EVLOG_warning << "EVSE manager does not allow placing a reservation for evse id " << evse_id.value()
+                                  << ": cancelling reservation.";
+                    this->auth_handler->handle_cancel_reservation(reservation_id);
+                    return false;
+                }
+            }
+
+            ReservationUpdateStatus status;
+            status.reservation_id = reservation_id;
+            status.reservation_status = Reservation_status::Placed;
+            this->p_reservation->publish_reservation_update(status);
+            return true;
+        });
+    this->auth_handler->register_reservation_cancelled_callback(
+        [this](const std::optional<int32_t> evse_id, const int32_t reservation_id, const ReservationEndReason reason,
+               const bool send_reservation_update) {
+            // Only call the evse manager to cancel the reservation if it was for a specific evse
+            if (evse_id.has_value() && evse_id.value() > 0) {
+                EVLOG_debug << "Call evse manager to cancel the reservation with evse id " << evse_id.value();
+                this->r_evse_manager.at(evse_id.value() - 1)->call_cancel_reservation();
+            }
+
+            if (send_reservation_update) {
+                ReservationUpdateStatus status;
+                status.reservation_id = reservation_id;
+                if (reason == ReservationEndReason::Expired) {
+                    status.reservation_status = Reservation_status::Expired;
+                } else if (reason == ReservationEndReason::Cancelled) {
+                    status.reservation_status = Reservation_status::Removed;
+                } else {
+                    // On reservation used: do not publish a reservation update!!
+                    return;
+                }
+                this->p_reservation->publish_reservation_update(status);
+            }
+        });
+
+    // Process any events that were queued during init before we were ready
+    {
+        auto state = this->event_state.handle();
+        while (!state->event_queue.empty()) {
+            auto queued_event = state->event_queue.front();
+            state->event_queue.pop();
+            const int32_t evse_id = this->auth_handler->get_evse_id_by_index(queued_event.evse_index);
+            if (std::holds_alternative<SessionEvent>(queued_event.data)) {
+                const auto& session_event = std::get<SessionEvent>(queued_event.data);
+                EVLOG_debug << "Processing queued session event for evse_id: " << evse_id
+                            << ", event: " << session_event.event;
+                this->auth_handler->handle_session_event(evse_id, session_event);
+            } else if (std::holds_alternative<PermanentFaultRaised>(queued_event.data)) {
+                const auto& fault = std::get<PermanentFaultRaised>(queued_event.data);
+                EVLOG_debug << "Processing queued permanent fault raised for evse_id: " << evse_id;
+                this->auth_handler->handle_permanent_fault_raised(evse_id, fault.connector_id);
+            } else if (std::holds_alternative<PermanentFaultCleared>(queued_event.data)) {
+                const auto& fault = std::get<PermanentFaultCleared>(queued_event.data);
+                EVLOG_debug << "Processing queued permanent fault cleared for evse_id: " << evse_id;
+                this->auth_handler->handle_permanent_fault_cleared(evse_id, fault.connector_id);
+            }
+        }
+        state->started = true;
+    }
+
+    this->auth_handler->initialize();
+}
+
+void Auth::set_connection_timeout(int& connection_timeout) {
+    this->auth_handler->set_connection_timeout(connection_timeout);
+}
+
+void Auth::set_master_pass_group_id(const std::string& master_pass_group_id) {
+    this->auth_handler->set_master_pass_group_id(master_pass_group_id);
+}
+
+WithdrawAuthorizationResult Auth::handle_withdraw_authorization(const WithdrawAuthorizationRequest& request) {
+    return this->auth_handler->handle_withdraw_authorization(request);
+}
+
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/Auth.hpp

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+#ifndef AUTH_HPP
+#define AUTH_HPP
+
+//
+// AUTO GENERATED - MARKED REGIONS WILL BE KEPT
+// template version 2
+//
+
+#include "ld-ev.hpp"
+
+// headers for provided interface implementations
+#include <generated/interfaces/auth/Implementation.hpp>
+#include <generated/interfaces/reservation/Implementation.hpp>
+
+// headers for required interface implementations
+#include <generated/interfaces/auth_token_provider/Interface.hpp>
+#include <generated/interfaces/auth_token_validator/Interface.hpp>
+#include <generated/interfaces/evse_manager/Interface.hpp>
+#include <generated/interfaces/kvs/Interface.hpp>
+
+// ev@4bf81b14-a215-475c-a1d3-0a484ae48918:v1
+// insert your custom include headers here
+#include <AuthHandler.hpp>
+#include <everest/util/async/monitor.hpp>
+#include <memory>
+#include <queue>
+#include <variant>
+
+using namespace types::evse_manager;
+using namespace types::authorization;
+
+struct PermanentFaultRaised {
+    int32_t connector_id;
+};
+
+struct PermanentFaultCleared {
+    int32_t connector_id;
+};
+
+using AuthEvent = std::variant<SessionEvent, PermanentFaultRaised, PermanentFaultCleared>;
+
+struct EvseEvent {
+    int32_t evse_index;
+    AuthEvent data;
+
+    EvseEvent(int32_t evse_index_, AuthEvent data_) : evse_index(evse_index_), data(std::move(data_)) {
+    }
+};
+
+struct EventQueueState {
+    bool started{false};
+    std::queue<EvseEvent> event_queue;
+};
+// ev@4bf81b14-a215-475c-a1d3-0a484ae48918:v1
+
+namespace module {
+
+struct Conf {
+    std::string selection_algorithm;
+    int connection_timeout;
+    std::string master_pass_group_id;
+    bool prioritize_authorization_over_stopping_transaction;
+    bool ignore_connector_faults;
+    bool plug_in_timeout_enabled;
+};
+
+class Auth : public Everest::ModuleBase {
+public:
+    Auth() = delete;
+    Auth(const ModuleInfo& info, std::unique_ptr<authImplBase> p_main,
+         std::unique_ptr<reservationImplBase> p_reservation,
+         std::vector<std::unique_ptr<auth_token_providerIntf>> r_token_provider,
+         std::vector<std::unique_ptr<auth_token_validatorIntf>> r_token_validator,
+         std::vector<std::unique_ptr<evse_managerIntf>> r_evse_manager, std::vector<std::unique_ptr<kvsIntf>> r_kvs,
+         Conf& config) :
+        ModuleBase(info),
+        p_main(std::move(p_main)),
+        p_reservation(std::move(p_reservation)),
+        r_token_provider(std::move(r_token_provider)),
+        r_token_validator(std::move(r_token_validator)),
+        r_evse_manager(std::move(r_evse_manager)),
+        r_kvs(std::move(r_kvs)),
+        config(config){};
+
+    const std::unique_ptr<authImplBase> p_main;
+    const std::unique_ptr<reservationImplBase> p_reservation;
+    const std::vector<std::unique_ptr<auth_token_providerIntf>> r_token_provider;
+    const std::vector<std::unique_ptr<auth_token_validatorIntf>> r_token_validator;
+    const std::vector<std::unique_ptr<evse_managerIntf>> r_evse_manager;
+    const std::vector<std::unique_ptr<kvsIntf>> r_kvs;
+    const Conf& config;
+
+    // ev@1fce4c5e-0ab8-41bb-90f7-14277703d2ac:v1
+    // insert your public definitions here
+    std::unique_ptr<AuthHandler> auth_handler;
+
+    /**
+     * @brief Set the connection timeout for the auth handler
+     *
+     * @param connection_timeout timeout in seconds
+     */
+    void set_connection_timeout(int& connection_timeout);
+
+    /**
+     * @brief Set the master pass group id for the auth handler
+     *
+     * @param master_pass_group_id master pass group id
+     */
+    void set_master_pass_group_id(const std::string& master_pass_group_id);
+
+    WithdrawAuthorizationResult handle_withdraw_authorization(const WithdrawAuthorizationRequest& request);
+    // ev@1fce4c5e-0ab8-41bb-90f7-14277703d2ac:v1
+
+protected:
+    // ev@4714b2ab-a24f-4b95-ab81-36439e1478de:v1
+    // insert your protected definitions here
+    // ev@4714b2ab-a24f-4b95-ab81-36439e1478de:v1
+
+private:
+    friend class LdEverest;
+    void init();
+    void ready();
+
+    // ev@211cfdbe-f69a-4cd6-a4ec-f8aaa3d1b6c8:v1
+    // insert your private definitions here
+    everest::lib::util::monitor<EventQueueState> event_state;
+    // ev@211cfdbe-f69a-4cd6-a4ec-f8aaa3d1b6c8:v1
+};
+
+// ev@087e516b-124c-48df-94fb-109508c7cda9:v1
+// insert other definitions here
+// ev@087e516b-124c-48df-94fb-109508c7cda9:v1
+
+} // namespace module
+
+#endif // AUTH_HPP

tools/EVerest-main/modules/EVSE/Auth/BUILD.bazel

@@ -0,0 +1,42 @@
+load("@rules_cc//cc:defs.bzl", "cc_library")
+load("//modules:module.bzl", "cc_everest_module")
+
+cc_library(
+    name = "auth_handler",
+    srcs = glob(["lib/*.cpp"]),
+    hdrs = glob(["include/*.hpp"]),
+    strip_include_prefix = "include",
+    deps = [
+        "//lib/everest/timer:libtimer",
+        "@boost.asio",
+        "//lib/everest/framework:framework",
+        "@com_github_HowardHinnant_date//:date",
+        "//types:types_lib",
+        "//interfaces:interfaces_lib",
+        "//lib/everest/helpers",
+        "//lib/everest/util",
+    ],
+    # See https://github.com/HowardHinnant/date/issues/324
+    local_defines = [
+        "BUILD_TZ_LIB=ON",
+        "USE_SYSTEM_TZ_DB=ON",
+        "USE_OS_TZDB=1",
+        "USE_AUTOLOAD=0",
+        "HAS_REMOTE_API=0",
+    ],
+    copts = ["-std=c++17"],
+)
+
+IMPLS = [
+    "main",
+    "reservation",
+]
+
+cc_everest_module(
+    name = "Auth",
+    deps = [
+        "//lib/everest/timer:libtimer",
+        ":auth_handler",
+    ],
+    impls = IMPLS,
+)

tools/EVerest-main/modules/EVSE/Auth/CMakeLists.txt

@@ -0,0 +1,40 @@
+#
+# AUTO GENERATED - MARKED REGIONS WILL BE KEPT
+# template version 3
+#
+
+# module setup:
+#   - ${MODULE_NAME}: module name
+ev_setup_cpp_module()
+
+# ev@bcc62523-e22b-41d7-ba2f-825b493a3c97:v1
+# insert your custom targets and additional config variables here
+option(BUILD_TESTING "Run unit tests" OFF)
+
+add_subdirectory(lib)
+
+target_include_directories(${MODULE_NAME} PRIVATE "include")
+
+target_link_libraries(${MODULE_NAME}
+    PRIVATE
+        auth_handler
+        date::date
+        date::date-tz
+        everest::timer
+        everest::helpers
+        everest::util
+)
+# ev@bcc62523-e22b-41d7-ba2f-825b493a3c97:v1
+
+target_sources(${MODULE_NAME}
+    PRIVATE
+        "main/authImpl.cpp"
+        "reservation/reservationImpl.cpp"
+)
+
+# ev@c55432ab-152c-45a9-9d2e-7281d50c69c3:v1
+# insert other things like install cmds etc here
+if(EVEREST_CORE_BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
+# ev@c55432ab-152c-45a9-9d2e-7281d50c69c3:v1

tools/EVerest-main/modules/EVSE/Auth/docs/everest_integration.drawio.svg

@@ -0,0 +1,249 @@
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+    <defs/>
+    <g>
+        <rect x="25" y="0" width="255" height="45" rx="4.5" ry="4.5" fill="#f2f3f5" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 239px; height: 1px; padding-top: 23px; margin-left: 33px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 237px; max-height: 27px;">
+                            <div style="display: inline-block; font-size: 16.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Token Provider
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="153" y="28" fill="#3a414a" font-family="Helvetica" font-size="17px" text-anchor="middle">
+                    Token Provider
+                </text>
+            </switch>
+        </g>
+        <path d="M 152.5 45.36 L 152.5 156.95" fill="none" stroke="#635dff" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 152.5 163.75 L 149.1 156.95 L 155.9 156.95 Z" fill="#635dff" stroke="#635dff" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 106px; margin-left: 153px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                1. Token
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="153" y="110" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    1. Token
+                </text>
+            </switch>
+        </g>
+        <rect x="25" y="165" width="255" height="45" rx="4.5" ry="4.5" fill="#f2f3f5" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 239px; height: 1px; padding-top: 188px; margin-left: 33px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 237px; max-height: 27px;">
+                            <div style="display: inline-block; font-size: 16.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Auth Module
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="153" y="193" fill="#3a414a" font-family="Helvetica" font-size="17px" text-anchor="middle">
+                    Auth Module
+                </text>
+            </switch>
+        </g>
+        <rect x="25" y="330" width="255" height="45" rx="4.5" ry="4.5" fill="#f2f3f5" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 239px; height: 1px; padding-top: 353px; margin-left: 33px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 237px; max-height: 27px;">
+                            <div style="display: inline-block; font-size: 16.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Token Validator
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="153" y="358" fill="#3a414a" font-family="Helvetica" font-size="17px" text-anchor="middle">
+                    Token Validator
+                </text>
+            </switch>
+        </g>
+        <path d="M 84.92 210.36 L 84.92 321.99" fill="none" stroke="#e81313" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 84.92 328.79 L 81.52 321.99 L 88.32 321.99 Z" fill="#e81313" stroke="#e81313" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 271px; margin-left: 85px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
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+                                2. validate_token(id_token)
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="85" y="275" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    2. validate_token(id_token)
+                </text>
+            </switch>
+        </g>
+        <path d="M 205.03 329.64 L 205.03 218.01" fill="none" stroke="#e81313" stroke-miterlimit="10" stroke-dasharray="3 8" pointer-events="stroke"/>
+        <path d="M 205.03 211.21 L 208.43 218.01 L 201.63 218.01 Z" fill="#e81313" stroke="#e81313" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 270px; margin-left: 206px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                3. Result
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="206" y="274" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    3. Result
+                </text>
+            </switch>
+        </g>
+        <rect x="445" y="112" width="255" height="45" rx="4.5" ry="4.5" fill="#f2f3f5" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 239px; height: 1px; padding-top: 135px; margin-left: 453px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 237px; max-height: 27px;">
+                            <div style="display: inline-block; font-size: 16.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Evse Manager 1
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="573" y="140" fill="#3a414a" font-family="Helvetica" font-size="17px" text-anchor="middle">
+                    Evse Manager 1
+                </text>
+            </switch>
+        </g>
+        <rect x="445" y="232" width="255" height="45" rx="4.5" ry="4.5" fill="#f2f3f5" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 239px; height: 1px; padding-top: 255px; margin-left: 453px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 237px; max-height: 27px;">
+                            <div style="display: inline-block; font-size: 16.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Evse Manager 2
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="573" y="260" fill="#3a414a" font-family="Helvetica" font-size="17px" text-anchor="middle">
+                    Evse Manager 2
+                </text>
+            </switch>
+        </g>
+        <path d="M 280.25 187.5 L 356.5 187.5 Q 362.5 187.5 362.5 193.5 L 362.5 248.5 Q 362.5 254.5 368.5 254.5 L 437.05 254.5" fill="none" stroke="#e81313" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 443.85 254.5 L 437.05 257.9 L 437.05 251.1 Z" fill="#e81313" stroke="#e81313" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 222px; margin-left: 363px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                authorize(id_token)
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="363" y="226" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    authorize(id_token)
+                </text>
+            </switch>
+        </g>
+        <path d="M 400 22 L 557.31 22" fill="none" stroke="#635dff" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 564.11 22 L 557.31 25.4 L 557.31 18.6 Z" fill="#635dff" stroke="#635dff" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 23px; margin-left: 484px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Vars
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="484" y="26" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Vars
+                </text>
+            </switch>
+        </g>
+        <path d="M 400 52 L 557.31 52" fill="none" stroke="#e81313" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 564.11 52 L 557.31 55.4 L 557.31 48.6 Z" fill="#e81313" stroke="#e81313" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 53px; margin-left: 484px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Cmds
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="484" y="56" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Cmds
+                </text>
+            </switch>
+        </g>
+        <rect x="295" y="142" width="120" height="40" rx="4.5" ry="4.5" fill-opacity="0" fill="#ffffff" stroke="rgb(0, 0, 0)" stroke-opacity="0" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 116px; height: 1px; padding-top: 145px; margin-left: 298px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: left; width: 114px;">
+                            <div style="display: inline-block; font-size: 10px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Selection depends on Selection logic of auth module
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="298" y="155" fill="#3a414a" font-family="Helvetica" font-size="10px">
+                    Selection depends on Se...
+                </text>
+            </switch>
+        </g>
+        <path d="M 190 76 L 295 76 L 295 123.6 Q 268.75 108.48 242.5 123.6 Q 216.25 138.72 190 123.6 L 190 84.4 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
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+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: left; width: 99px;">
+                            <div style="display: inline-block; font-size: 8.3px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                id_token: string
+                                <br/>
+                                type: string
+                                <br/>
+                                connectors: array of int
+                                <br/>
+                                prevalidated: bool
+                                <div>
+                                    <br/>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="193" y="87" fill="#3a414a" font-family="Helvetica" font-size="8px">
+                    id_token: string...
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Viewer does not support full SVG 1.1
+            </text>
+        </a>
+    </switch>
+</svg>

tools/EVerest-main/modules/EVSE/Auth/docs/index.rst

@@ -0,0 +1,87 @@
+.. _everest_modules_handwritten_Auth:
+
+.. ===========
+.. Auth Module
+.. ===========
+
+This module handles incoming authorization and reservation requests.
+
+The task of the module is to receive tokens from token providers, validate them and assign them to EvseManagers.
+It is responsible for providing authorization to EvseManagers and for stopping transactions at the EvseManagers if a token
+or parent id token is presented to stop a transaction. In addition, the module is responsible for managing all
+reservations and matching them with incoming tokens.
+
+The module contains the logic to select a connector for incoming tokens (e.g. by waiting for a car plug in, user
+interface, random selection, etc.). Currently two selection algorithms are implemented and described in 
+`Selection Algorithm`_.
+
+The following flow diagram describes how an incoming token is handled by the module.
+
+.. image:: token_handling.drawio.svg
+   :alt: TokenHandling
+
+.. note::
+    
+    The processing of each authorization request and the respective validation runs in an individual thread. This 
+    allows the parallel processing of authorization requests.
+
+Integration in EVerest
+======================
+
+This module provides implementations for the `reservation` and the `auth` interfaces.
+
+It requires connections to module(s) implementing the `token_provider`, `token_validator` and `evse_manager` interfaces.
+
+The following diagram shows how it integrates with other EVerest modules.
+
+.. image:: everest_integration.drawio.svg
+   :alt: Integration
+
+The module connections of the evse_manager requirement must be connected in the correct order in the EVerest config
+file, i.e. the module representing the EVSE with evse id 1 must listed first, EVSE with evse id 2 second and so on.
+
+Selection Algorithm
+===================
+
+The selection algorithm contains the logic to select one connector for an incoming token. The algorithm can be
+specified within the module config using the key `selection_algorithm`. In case the charging station has only 
+one connector, the selection of a connector is pretty straight-forward because there is only one that is 
+available. The selection algorithm becomes relevant in case the Auth module manages authorization requests 
+for multiple connectors. 
+
+Three options for the selection are available: 
+
+* PlugEvents
+* FindFirst
+* UserInput
+
+PlugEvents
+----------
+
+The following flow chart describes how a connector is selected using the `PlugEvents` algorithm.
+
+.. image:: plug_events_selection_algorithm.drawio.svg
+   :alt: SelectionAlgorithm
+
+.. note::
+    
+    In case a user authorizes first and no EV is connected to the charger to initiate a SessionStarted event the 
+    processing thread waits for a SessionStarted event to select the respective connector. A Plug-In timeout may 
+    occur, which will require a subsequent initiation of authorization to start a charging session.
+
+FindFirst
+---------
+
+The `FindFirst` selection method simply selects the first available connector that has no active transaction.
+This method attempts to select a connector immediately.
+
+UserInput
+---------
+
+Not yet implemented.
+
+Plug&Charge Authorization
+=========================
+
+Please see the :doc:`Plug&Charge configuration guide </how-to-guides/configure-pnc>`
+for further information about the Plug&Charge integration in EVerest.

tools/EVerest-main/modules/EVSE/Auth/docs/plug_events_selection_algorithm.drawio.svg

@@ -0,0 +1,248 @@
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+    <defs/>
+    <g>
+        <rect x="195" y="0" width="135" height="40" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 131px; height: 1px; padding-top: 20px; margin-left: 197px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 129px; max-height: 34px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Id Token with multiple connector assignment
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="263" y="24" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Id Token with multiple...
+                </text>
+            </switch>
+        </g>
+        <path d="M 233 112.5 L 259.4 92.7 Q 263 90 266.6 92.7 L 319.4 132.3 Q 323 135 319.4 137.7 L 266.6 177.3 Q 263 180 259.4 177.3 L 206.6 137.7 Q 203 135 206.6 132.3 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 116px; height: 1px; padding-top: 135px; margin-left: 205px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 114px; max-height: 84px;">
+                            <div style="display: inline-block; font-size: 10px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Only one of assigned connectors available?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="263" y="138" fill="#3a414a" font-family="Helvetica" font-size="10px" text-anchor="middle">
+                    Only one of assigned co...
+                </text>
+            </switch>
+        </g>
+        <path d="M 262.5 40.36 L 262.5 59 Q 262.5 65 262.62 71 L 262.85 83.39" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 262.98 90.19 L 259.45 83.45 L 266.25 83.32 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="390" y="112" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 135px; margin-left: 398px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Select this connector
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="458" y="139" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Select this connector
+                </text>
+            </switch>
+        </g>
+        <path d="M 321.08 135 L 381.9 135" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 388.7 135 L 381.9 138.4 L 381.9 131.6 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 136px; margin-left: 356px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Yes
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="356" y="139" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Yes
+                </text>
+            </switch>
+        </g>
+        <rect x="593" y="115" width="135" height="40" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 131px; height: 1px; padding-top: 135px; margin-left: 595px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 129px; max-height: 34px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                End
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="661" y="139" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    End
+                </text>
+            </switch>
+        </g>
+        <path d="M 525.4 135 L 584.9 135" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 591.7 135 L 584.9 138.4 L 584.9 131.6 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 263 178.92 L 263 223.39" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 263 230.19 L 259.6 223.39 L 266.4 223.39 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 205px; margin-left: 264px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                No
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="264" y="209" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    No
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="232" width="180" height="104" rx="4.5" ry="4.5" fill-opacity="0" fill="#ffffff" stroke="rgb(0, 0, 0)" stroke-opacity="0" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 176px; height: 1px; padding-top: 235px; margin-left: 3px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: left; width: 174px;">
+                            <div style="display: inline-block; font-size: 10px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                A connector is in the authorization queue as soon as the EvseManager sends a SessionStarted event and no authorization has yet been presented. A connector is removed from the authorization queue when it is selected by the selector or if the connection timeout expires
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="3" y="245" fill="#3a414a" font-family="Helvetica" font-size="10px">
+                    A connector is in the authorization...
+                </text>
+            </switch>
+        </g>
+        <path d="M 233 252.5 L 259.4 232.7 Q 263 230 266.6 232.7 L 319.4 272.3 Q 323 275 319.4 277.7 L 266.6 317.3 Q 263 320 259.4 317.3 L 206.6 277.7 Q 203 275 206.6 272.3 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 116px; height: 1px; padding-top: 275px; margin-left: 205px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 114px; max-height: 84px;">
+                            <div style="display: inline-block; font-size: 10px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Connector in authorization queue?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="263" y="278" fill="#3a414a" font-family="Helvetica" font-size="10px" text-anchor="middle">
+                    Connector in authorizat...
+                </text>
+            </switch>
+        </g>
+        <rect x="390" y="252" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 275px; margin-left: 398px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Select this connector
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="458" y="279" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Select this connector
+                </text>
+            </switch>
+        </g>
+        <path d="M 321.08 275 L 381.9 275" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 388.7 275 L 381.9 278.4 L 381.9 271.6 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 276px; margin-left: 356px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Yes
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="356" y="279" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Yes
+                </text>
+            </switch>
+        </g>
+        <path d="M 525.4 275 L 654.5 275 Q 660.5 275 660.5 269 L 660.5 163.05" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 660.5 156.25 L 663.9 163.05 L 657.1 163.05 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="195" y="370" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 393px; margin-left: 203px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Wait for next SessionStarted Event
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="263" y="397" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Wait for next Sessio...
+                </text>
+            </switch>
+        </g>
+        <path d="M 263 318.92 L 263 339 Q 263 345 262.88 351 L 262.66 361.94" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 262.52 368.74 L 259.26 361.87 L 266.06 362.01 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 346px; margin-left: 264px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                No
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="264" y="349" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    No
+                </text>
+            </switch>
+        </g>
+        <rect x="390" y="370" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 393px; margin-left: 398px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Select this connector
+                            </div>
+                        </div>
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+                                Currently used
+                                <br/>
+                                for transaction?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="139" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Currently used...
+                </text>
+            </switch>
+        </g>
+        <path d="M 67.5 40.36 L 67.5 59 Q 67.5 65 67.62 71 L 67.85 83.39" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 67.98 90.19 L 64.45 83.45 L 71.25 83.32 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="199" y="111" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 134px; margin-left: 207px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Call stop_transaction at evse manager
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="267" y="138" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Call stop_transactio...
+                </text>
+            </switch>
+        </g>
+        <path d="M 126.08 135 L 157.5 135 Q 163.5 135 163.5 134.5 L 163.5 134.25 Q 163.5 134 169.5 134 L 190.9 134" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 197.7 134 L 190.9 137.4 L 190.9 130.6 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 136px; margin-left: 164px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Yes
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="164" y="140" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Yes
+                </text>
+            </switch>
+        </g>
+        <rect x="405" y="112" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 135px; margin-left: 413px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Remove transaction
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="473" y="139" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Remove transaction
+                </text>
+            </switch>
+        </g>
+        <path d="M 334.4 134 L 363.5 134 Q 369.5 134 375.5 134.08 L 396.9 134.39" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 403.7 134.48 L 396.85 137.79 L 396.95 130.99 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 38 375.5 L 64.4 355.7 Q 68 353 71.6 355.7 L 124.4 395.3 Q 128 398 124.4 400.7 L 71.6 440.3 Q 68 443 64.4 440.3 L 11.6 400.7 Q 8 398 11.6 395.3 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 116px; height: 1px; padding-top: 398px; margin-left: 10px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 114px; max-height: 84px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                All connectors occupied?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="402" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    All connectors occup...
+                </text>
+            </switch>
+        </g>
+        <rect x="405" y="255" width="135" height="40" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 131px; height: 1px; padding-top: 275px; margin-left: 407px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 129px; max-height: 34px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                End
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="473" y="279" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    End
+                </text>
+            </switch>
+        </g>
+        <rect x="199" y="375" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 398px; margin-left: 207px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Discard/Reject Id Token
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="267" y="402" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Discard/Reject Id To...
+                </text>
+            </switch>
+        </g>
+        <path d="M 334.4 398 L 363.5 398 Q 369.5 398 369.5 392 L 369.5 281 Q 369.5 275 375.5 275 L 396.9 275" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 403.7 275 L 396.9 278.4 L 396.9 271.6 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="255" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 278px; margin-left: 8px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Forward Id Token to validators
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="282" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Forward Id Token to...
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="637" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 660px; margin-left: 8px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Select Connector using Selection logic
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="664" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Select Connector usi...
+                </text>
+            </switch>
+        </g>
+        <path d="M 38 757.5 L 64.4 737.7 Q 68 735 71.6 737.7 L 124.4 777.3 Q 128 780 124.4 782.7 L 71.6 822.3 Q 68 825 64.4 822.3 L 11.6 782.7 Q 8 780 11.6 777.3 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 116px; height: 1px; padding-top: 780px; margin-left: 10px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 114px; max-height: 84px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Connector Reserved?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="784" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Connector Reserved?
+                </text>
+            </switch>
+        </g>
+        <path d="M 281 757.5 L 307.4 737.7 Q 311 735 314.6 737.7 L 367.4 777.3 Q 371 780 367.4 782.7 L 314.6 822.3 Q 311 825 307.4 822.3 L 254.6 782.7 Q 251 780 254.6 777.3 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 116px; height: 1px; padding-top: 780px; margin-left: 253px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 114px; max-height: 84px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Id Tag match?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="311" y="784" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Id Tag match?
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="877" width="135" height="46" rx="4.5" ry="4.5" fill="rgb(255, 255, 255)" stroke="#3a414a" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 119px; height: 1px; padding-top: 900px; margin-left: 8px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 117px; max-height: 28px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Call authorize at evse manager
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="904" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Call authorize at ev...
+                </text>
+            </switch>
+        </g>
+        <path d="M 126.08 780 L 245.23 780" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 252.03 780 L 245.23 783.4 L 245.23 776.6 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 781px; margin-left: 190px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Yes
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="190" y="784" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Yes
+                </text>
+            </switch>
+        </g>
+        <path d="M 68 823.92 L 68 845 Q 68 851 67.88 857 L 67.65 868.94" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 67.52 875.74 L 64.25 868.87 L 71.05 869.01 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 852px; margin-left: 69px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                No
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="69" y="855" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    No
+                </text>
+            </switch>
+        </g>
+        <path d="M 311 736.08 L 311 584 Q 311 578 311.02 572 L 311.43 429.02" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 311.45 422.22 L 314.83 429.03 L 308.03 429.01 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 579px; margin-left: 311px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                No
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="311" y="582" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    No
+                </text>
+            </switch>
+        </g>
+        <path d="M 311 823.92 L 311 894 Q 311 900 305 900 L 143.1 900" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 136.3 900 L 143.1 896.6 L 143.1 903.4 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 901px; margin-left: 262px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Yes
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="262" y="904" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Yes
+                </text>
+            </switch>
+        </g>
+        <path d="M 67.5 923.37 L 67.5 931 Q 67.5 937 73.5 937 L 466.5 937 Q 472.5 937 472.5 931 L 472.5 303.05" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 472.5 296.25 L 475.9 303.05 L 469.1 303.05 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 472.5 158.37 L 472.5 246.95" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 472.5 253.75 L 469.1 246.95 L 475.9 246.95 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 68 178.92 L 68 211.5 Q 68 217.5 67.92 223.5 L 67.6 246.94" fill="none" stroke="#3a414a" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 67.51 253.74 L 64.2 246.89 L 71 246.98 Z" fill="#3a414a" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
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+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
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+                                No
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+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                Yes
+                            </div>
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+                    </div>
+                </foreignObject>
+                <text x="163" y="402" fill="#333333" font-family="Helvetica" font-size="13px" text-anchor="middle" font-weight="bold">
+                    Yes
+                </text>
+            </switch>
+        </g>
+        <path d="M 38 517.5 L 64.4 497.7 Q 68 495 71.6 497.7 L 124.4 537.3 Q 128 540 124.4 542.7 L 71.6 582.3 Q 68 585 64.4 582.3 L 11.6 542.7 Q 8 540 11.6 537.3 Z" fill="rgb(255, 255, 255)" stroke="#3a414a" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
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+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 116px; height: 1px; padding-top: 540px; margin-left: 10px;">
+                        <div data-drawio-colors="color: #3a414a; " style="box-sizing: border-box; font-size: 0px; text-align: center; width: 114px; max-height: 84px;">
+                            <div style="display: inline-block; font-size: 11.7px; font-family: Helvetica; color: rgb(58, 65, 74); line-height: 1.2; pointer-events: all; width: 100%; white-space: normal; overflow-wrap: normal;">
+                                Valid token available?
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="68" y="544" fill="#3a414a" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Valid token availabl...
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+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 469px; margin-left: 69px;">
+                        <div data-drawio-colors="color: #333333; background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 13.3px; font-family: Helvetica; color: rgb(51, 51, 51); line-height: 1.2; pointer-events: all; font-weight: bold; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                No
+                            </div>
+                        </div>
+                    </div>
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+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
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+                                Yes
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+                                No
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+                Viewer does not support full SVG 1.1
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+    </switch>
+</svg>

tools/EVerest-main/modules/EVSE/Auth/include/AuthHandler.hpp

@@ -0,0 +1,349 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#ifndef _AUTH_HANDLER_HPP_
+#define _AUTH_HANDLER_HPP_
+
+#include <condition_variable>
+#include <list>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <set>
+
+#include <utils/types.hpp>
+
+#include <generated/types/authorization.hpp>
+#include <generated/types/evse_manager.hpp>
+#include <generated/types/reservation.hpp>
+#include <generated/types/text_message.hpp>
+
+#include <Connector.hpp>
+#include <ReservationHandler.hpp>
+
+using namespace types::evse_manager;
+using namespace types::authorization;
+using namespace types::reservation;
+using namespace types::text_message;
+
+namespace types {
+namespace authorization {
+
+inline bool operator<(const IdToken& lhs, const IdToken& rhs) {
+    return lhs.value < rhs.value;
+}
+
+inline bool operator<(const ProvidedIdToken& lhs, const ProvidedIdToken& rhs) {
+    return lhs.id_token < rhs.id_token;
+}
+
+} // namespace authorization
+} // namespace types
+
+namespace module {
+
+enum class TokenHandlingResult {
+    ALREADY_IN_PROCESS,
+    REJECTED,
+    USED_TO_START_TRANSACTION,
+    USED_TO_STOP_TRANSACTION,
+    TIMEOUT,
+    NO_CONNECTOR_AVAILABLE,
+    WITHDRAWN
+};
+
+namespace conversions {
+std::string token_handling_result_to_string(const TokenHandlingResult& result);
+} // namespace conversions
+
+/**
+ * @brief This class handles authorization and reservation requests. It keeps track of the state of each connector and
+ * validates incoming token and reservation requests accordingly.
+ *
+ */
+class AuthHandler {
+
+public:
+    AuthHandler(const SelectionAlgorithm& selection_algorithm, const int connection_timeout,
+                bool plug_in_timeout_enabled, bool prioritize_authorization_over_stopping_transaction,
+                bool ignore_connector_faults, const std::string& id, kvsIntf* store);
+    virtual ~AuthHandler();
+
+    /**
+     * @brief Initializes the evse with the given \p connectors and the given \p evse_id . It instantiates new
+     * connector objects and fills data sturctures of the class.
+     *
+     * @param evse_id
+     * @param evse_index
+     * @param connectors    The connectors.
+     */
+    void init_evse(const int evse_id, const int evse_index, const std::vector<Connector>& connectors);
+
+    /**
+     * @brief Returns the evse_id for the given \p evse_index .
+     *
+     * @param evse_index
+     * @return int32_t evse_id
+     */
+    int32_t get_evse_id_by_index(const int evse_index);
+
+    /**
+     * @brief Call when everything is initialized. This will call 'init' of the reservation handler.
+     */
+    void initialize();
+
+    /**
+     * @brief Handler for a new incoming \p provided_token
+     *
+     * @param provided_token
+     */
+    TokenHandlingResult on_token(const ProvidedIdToken& provided_token);
+
+    /**
+     * @brief Handler for an update to a token validation result. This is mainly used to update if we have a parent id.
+     *
+     * @param validation_result_update
+     */
+    void handle_token_validation_result_update(const ValidationResultUpdate& validation_result_update);
+
+    /**
+     * @brief Handler for new incoming \p reservation for the given \p connector . Places the reservation if possible.
+     *
+     * @param reservation
+     * @return types::reservation::ReservationResult
+     */
+    types::reservation::ReservationResult handle_reservation(const Reservation& reservation);
+
+    /**
+     * @brief Handler for incoming cancel reservation request for the given \p reservation_id .
+     *
+     * @param reservation_id
+     * @return return value first returns false if the reservation could not been cancelled. Return value second is the
+     *         evse id or nullopt if the reservation was a 'global' reservation without evse id.
+     */
+    std::pair<bool, std::optional<int32_t>> handle_cancel_reservation(const int32_t reservation_id);
+
+    /**
+     * @brief Callback to check if there is a reservation for the given token (on the given evse id).
+     * @param id_token          The token to check.
+     * @param evse_id           The evse to check the reservation for.
+     * @param group_id_token    The group id token to check.
+     * @return The reservation check status
+     */
+    ReservationCheckStatus handle_reservation_exists(std::string& id_token, const std::optional<int>& evse_id,
+                                                     std::optional<std::string>& group_id_token);
+
+    /**
+     * @brief Callback to signal EvseManager that the given \p connector_id has been reserved with the given \p
+     * reservation_id .
+     *
+     * @param evse_id
+     * @param reservation_id
+     *
+     * @return true of EvseManager accepted the reservation.
+     */
+    bool call_reserved(const int reservation_id, const std::optional<int>& evse_id);
+
+    /**
+     * @brief Callback to signal EvseManager that the reservation for the given \p evse_id has been cancelled.
+     *
+     * @param reservation_id    The id of the cancelled reservation.
+     * @param reason            The reason the reservation was cancelled.
+     * @param evse_id           Evse id if reservation was for a specific evse.
+     * @param send_reservation_update   True to send a reservation update. This should not be sent if OCPP cancels
+     *                                  the reservation.
+     */
+    void call_reservation_cancelled(const int32_t reservation_id, const ReservationEndReason reason,
+                                    const std::optional<int>& evse_id, const bool send_reservation_update);
+
+    /**
+     * @brief Handler for the given \p events at the given \p connector . Submits events to the state machine of the
+     * handler.
+     *
+     * @param evse_id
+     * @param events
+     */
+    void handle_session_event(const int evse_id, const SessionEvent& events);
+
+    /**
+     * @brief Handler for permanent faults from evsemanager that prevents charging
+     */
+    void handle_permanent_fault_cleared(const int evse_id, const int32_t connector_id);
+    void handle_permanent_fault_raised(const int evse_id, const int32_t connector_id);
+
+    /**
+     * @brief Set the connection timeout of the handler.
+     *
+     * @param connection_timeout
+     */
+    void set_connection_timeout(const int connection_timeout);
+
+    /**
+     * @brief Set the plug in timeout enabled flag of the handler.
+     *
+     * @param plug_in_timeout_enabled
+     */
+    void set_plug_in_timeout_enabled(bool plug_in_timeout_enabled);
+
+    /**
+     * @brief Set the master pass group id of the handler.
+     *
+     * @param master_pass_group_id
+     */
+    void set_master_pass_group_id(const std::string& master_pass_group_id);
+
+    /**
+     * @brief Set the prioritize authorization over stopping transaction flag of the handler.
+     *
+     * @param b
+     */
+    void set_prioritize_authorization_over_stopping_transaction(bool b);
+
+    /**
+     * @brief Registers the given \p callback to notify the evse about the processed authorization request.
+     *
+     * @param callback
+     */
+    void
+    register_notify_evse_callback(const std::function<void(const int evse_index, const ProvidedIdToken& provided_token,
+                                                           const ValidationResult& validation_result)>& callback);
+    /**
+     * @brief Registers the given \p callback to withdraw authorization.
+     *
+     * @param callback
+     */
+    void register_withdraw_authorization_callback(const std::function<void(const int evse_index)>& callback);
+
+    /**
+     * @brief Registers the given \p callback to validate a token.
+     *
+     * @param callback
+     */
+    void register_validate_token_callback(
+        const std::function<std::vector<ValidationResult>(const ProvidedIdToken& provided_token)>& callback);
+
+    /**
+     * @brief Registers the given \p callback to stop a transaction at an EvseManager.
+     *
+     * @param callback
+     */
+    void register_stop_transaction_callback(
+        const std::function<void(const int evse_index, const StopTransactionRequest& request)>& callback);
+
+    /**
+     * @brief Registers the given \p callback to signal a reservation to an EvseManager.
+     *
+     * @param callback
+     */
+    void register_reserved_callback(
+        const std::function<bool(const std::optional<int>& evse_id, const int& reservation_id)>& callback);
+
+    /**
+     * @brief Registers the given \p callback to signal a reservation has been cancelled to the EvseManager.
+     *
+     * @param callback
+     */
+    void register_reservation_cancelled_callback(
+        const std::function<void(const std::optional<int32_t>& evse_id, const int32_t reservation_id,
+                                 const ReservationEndReason reason, const bool send_reservation_update)>& callback);
+
+    /**
+     * @brief Registers the given \p callback to publish the intermediate token validation status.
+     *
+     * @param callback
+     */
+    void register_publish_token_validation_status_callback(
+        const std::function<void(const ProvidedIdToken&, TokenValidationStatus, const std::vector<MessageContent>&)>&
+            callback);
+
+    WithdrawAuthorizationResult handle_withdraw_authorization(const WithdrawAuthorizationRequest& request);
+
+private:
+    enum class SelectEvseReturnStatus {
+        EvseSelected,
+        Interrupted,
+        TimeOut
+    };
+
+    struct SelectEvseResult {
+        std::optional<int> evse_id;
+        SelectEvseReturnStatus status;
+    };
+
+    SelectionAlgorithm selection_algorithm;
+    int connection_timeout;
+    bool plug_in_timeout_enabled;
+    std::optional<std::string> master_pass_group_id;
+    bool prioritize_authorization_over_stopping_transaction;
+    bool ignore_faults;
+    ReservationHandler reservation_handler;
+
+    std::map<int, std::unique_ptr<EVSEContext>> evses;
+
+    std::list<int> plug_in_queue;
+    std::set<ProvidedIdToken> tokens_in_process;
+    std::condition_variable cv;
+    std::condition_variable processing_finished_cv;
+    std::mutex event_mutex;
+    std::mutex withdraw_mutex;
+    std::unique_ptr<WithdrawAuthorizationRequest> withdraw_request;
+
+    // callbacks
+    std::function<void(const int evse_index, const ProvidedIdToken& provided_token,
+                       const ValidationResult& validation_result)>
+        notify_evse_callback;
+    std::function<void(const int evse_index)> withdraw_authorization_callback;
+    std::function<std::vector<ValidationResult>(const ProvidedIdToken& provided_token)> validate_token_callback;
+    std::function<void(const int evse_index, const StopTransactionRequest& request)> stop_transaction_callback;
+    std::function<void(const Array& reservations)> reservation_update_callback;
+    std::function<bool(const std::optional<int>& evse_index, const int& reservation_id)> reserved_callback;
+    std::function<void(const std::optional<int>& evse_index, const int32_t reservation_id,
+                       const types::reservation::ReservationEndReason reason, const bool send_reservation_update)>
+        reservation_cancelled_callback;
+    std::function<void(const ProvidedIdToken& token, TokenValidationStatus status,
+                       const std::vector<MessageContent>& tariff_messages)>
+        publish_token_validation_status_callback;
+
+    void publish_token_validation_status(const ProvidedIdToken& token, TokenValidationStatus status,
+                                         const std::vector<MessageContent>& tariff_messages = {});
+
+    std::vector<int> get_referenced_evses(const ProvidedIdToken& provided_token);
+    int used_for_transaction(const std::vector<int>& evse_ids, const std::string& id_token);
+    bool is_token_already_in_process(const ProvidedIdToken& provided_id_token,
+                                     const std::vector<int>& referenced_evses);
+    bool any_evse_available(const std::vector<int>& evse_ids);
+    bool any_parent_id_present(const std::vector<int>& evse_ids);
+    bool equals_master_pass_group_id(const std::optional<types::authorization::IdToken> parent_id_token);
+
+    TokenHandlingResult handle_token(ProvidedIdToken& provided_token, std::unique_lock<std::mutex>& lk);
+
+    /**
+     * @brief Method selects an evse based on the configured selection algorithm. It might block until an event
+     * occurs that can be used to determine an evse.
+     *
+     * @param selected_evses
+     * @param id_token          The id token of the request.
+     * @return The status and optional evse id if an evse was selected.
+     */
+    SelectEvseResult select_evse(const std::vector<int>& selected_evses, const IdToken& id_token,
+                                 std::unique_lock<std::mutex>& lk);
+    bool is_authorization_withdrawn(const std::vector<int>& selected_evses, const IdToken& id_token);
+
+    int get_latest_plugin(const std::vector<int>& evse_ids);
+    void notify_evse(int evse_id, const ProvidedIdToken& provided_token, const ValidationResult& validation_result,
+                     std::unique_lock<std::mutex>& lk);
+    Identifier get_identifier(const ValidationResult& validation_result, const std::string& id_token,
+                              const AuthorizationType& type);
+    void submit_event_for_connector(const int32_t evse_id, const int32_t connector_id,
+                                    const ConnectorEvent connector_event);
+    /**
+     * @brief Check reservations: if there are as many reservations as evse's, all should be set to reserved.
+     *
+     * This will check the reservation status of the evse's and send the statusses to the evse manager.
+     */
+    void check_evse_reserved_and_send_updates();
+};
+
+} // namespace module
+
+#endif //_AUTH_HANDLER_HPP_

tools/EVerest-main/modules/EVSE/Auth/include/Connector.hpp

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#ifndef _CONNECTOR_HPP_
+#define _CONNECTOR_HPP_
+
+#include <optional>
+
+#include <everest/timer.hpp>
+
+#include <utils/types.hpp>
+
+#include <ConnectorStateMachine.hpp>
+#include <generated/types/authorization.hpp>
+#include <generated/types/evse_manager.hpp>
+
+namespace module {
+
+/// \brief Validated Identifier struct. Used to keep track of active Identifiers
+struct Identifier {
+    types::authorization::IdToken id_token;       ///< IdToken of the identifier
+    types::authorization::AuthorizationType type; ///< Type of the provider of the identifier
+    std::optional<types::authorization::AuthorizationStatus> authorization_status;
+    std::optional<std::string> expiry_time; ///< Absolute UTC time point when reservation expires in RFC3339 format
+    std::optional<types::authorization::IdToken> parent_id_token; ///< Parent id token of the identifier
+};
+
+struct Connector {
+    explicit Connector(
+        int id, const types::evse_manager::ConnectorTypeEnum type = types::evse_manager::ConnectorTypeEnum::Unknown) :
+        id(id), transaction_active(false), state_machine(ConnectorState::AVAILABLE), type(type) {
+    }
+
+    int id;
+
+    bool transaction_active;
+    ConnectorStateMachine state_machine;
+    types::evse_manager::ConnectorTypeEnum type;
+
+    /**
+     * @brief Submits the given \p event to the state machine
+     *
+     * @param event
+     */
+    void submit_event(ConnectorEvent event);
+
+    /**
+     * @brief Returns true if connector is in state UNAVAILABLE or UNAVAILABLE_FAULTED
+     *
+     * @return true
+     * @return false
+     */
+    bool is_unavailable() const;
+
+    ConnectorState get_state() const;
+};
+
+struct EVSEContext {
+
+    EVSEContext(
+        int evse_id, int evse_index, int connector_id,
+        const types::evse_manager::ConnectorTypeEnum connector_type = types::evse_manager::ConnectorTypeEnum::Unknown) :
+        evse_id(evse_id), evse_index(evse_index), transaction_active(false), plugged_in(false) {
+        Connector c(connector_id, connector_type);
+        connectors.push_back(c);
+    }
+
+    EVSEContext(int evse_id, int evse_index, const std::vector<Connector>& connectors) :
+        evse_id(evse_id),
+        evse_index(evse_index),
+        transaction_active(false),
+        connectors(connectors),
+        plugged_in(false),
+        plug_in_timeout(false) {
+    }
+
+    int32_t evse_id;
+    int32_t evse_index;
+    bool transaction_active;
+
+    // identifier is set when transaction is running and none if not
+    std::optional<Identifier> identifier = std::nullopt;
+    std::vector<Connector> connectors;
+    Everest::SteadyTimer timeout_timer;
+    std::atomic<bool> timeout_in_progress{false};
+    bool plugged_in;
+    bool plug_in_timeout; // indicates no authorization received within connection_timeout. Replug is required for this
+                          // EVSE to get authorization and start a transaction
+
+    bool is_available();
+    bool is_unavailable();
+};
+
+namespace conversions {
+std::string connector_state_to_string(const ConnectorState& state);
+} // namespace conversions
+
+} // namespace module
+
+#endif //_CONNECTOR_HPP_

tools/EVerest-main/modules/EVSE/Auth/include/ConnectorStateMachine.hpp

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#ifndef _CONNECTOR_STATE_MACHINE_HPP_
+#define _CONNECTOR_STATE_MACHINE_HPP_
+
+#include <memory>
+#include <string>
+
+namespace module {
+
+enum class ConnectorEvent {
+    ENABLE,
+    DISABLE,
+    ERROR_CLEARED,
+    FAULTED,
+    TRANSACTION_STARTED,
+    SESSION_FINISHED
+};
+
+/// @warning Do not change the order of ConnectorState, or if you do it, fix the code in ReservationHandler.
+enum class ConnectorState {
+    AVAILABLE,
+    UNAVAILABLE,
+    FAULTED,
+    OCCUPIED,
+    UNAVAILABLE_FAULTED,
+    FAULTED_OCCUPIED
+};
+
+class ConnectorStateMachine {
+public:
+    explicit ConnectorStateMachine(ConnectorState initial_state);
+
+    bool handle_event(ConnectorEvent event);
+
+    ConnectorState get_state() const;
+
+private:
+    ConnectorState state;
+};
+
+} // namespace module
+
+#endif //_CONNECTOR_STATE_MACHINE_HPP_

tools/EVerest-main/modules/EVSE/Auth/include/ReservationHandler.hpp

@@ -0,0 +1,357 @@
+#pragma once
+
+#include <cstdint>
+#include <map>
+#include <mutex>
+#include <optional>
+#include <set>
+#include <vector>
+
+#include <boost/shared_ptr.hpp>
+
+#include <Connector.hpp>
+#include <everest/timer.hpp>
+#include <generated/types/evse_manager.hpp>
+#include <generated/types/reservation.hpp>
+
+class kvsIntf;
+
+namespace module {
+
+struct ReservationEvseStatus {
+    std::set<int32_t> reserved;
+    std::set<int32_t> available;
+};
+
+class ReservationHandler {
+private: // Members
+    /// \brief Map of EVSE's, with EVSE id as key and the EVSE struct as value.
+    std::map<int, std::unique_ptr<module::EVSEContext>>& evses;
+    /// \brief Key value store id.
+    const std::string kvs_store_key_id;
+    /// \brief Key value store for storing reservations.
+    kvsIntf* store;
+    /// \brief Map of EVSE specific reservations, with EVSE id as key and the Reservation type as value.
+    std::map<uint32_t, types::reservation::Reservation> evse_reservations;
+    /// \brief All reservations not bound to a specific EVSE.
+    std::vector<types::reservation::Reservation> global_reservations;
+    /// \brief event mutex, for all timer bound locks (for `reservation_id_to_reservation_timeout_timer_map`)
+    mutable std::recursive_mutex event_mutex;
+    /// \brief Map with reservations and their timer.
+    ///
+    /// Every reservation has a specific end time, which is stored in this map. Key is the reservation id. When the
+    /// timer expires, it is removed from the map and the reservation is removed from the `evse_reservations` or
+    /// `global_reservations`.
+    std::map<int, std::unique_ptr<Everest::SteadyTimer>> reservation_id_to_reservation_timeout_timer_map;
+
+    /// \brief The callback that is called when a reservation is cancelled.
+    std::function<void(const std::optional<uint32_t>& evse_id, const int32_t reservation_id,
+                       const types::reservation::ReservationEndReason reason, const bool send_reservation_update)>
+        reservation_cancelled_callback;
+
+    std::set<int32_t> last_reserved_status;
+
+    /// \brief worker for the timers.
+    boost::shared_ptr<boost::asio::executor_work_guard<boost::asio::io_context::executor_type>> work;
+    /// \brief io_context for the worker for the timers.
+    boost::asio::io_context io_context;
+    /// \brief io context thread for the timers.
+    std::thread io_context_thread;
+
+public:
+    ///
+    /// \brief Constructor.
+    ///
+    ReservationHandler(std::map<int, std::unique_ptr<module::EVSEContext>>& evses, const std::string& id,
+                       kvsIntf* store);
+
+    ///
+    /// \brief Destructor.
+    ///
+    ~ReservationHandler();
+
+    ///
+    /// \brief Load reservations from key value store.
+    ///
+    void load_reservations();
+
+    ///
+    /// \brief Try to make a reservation.
+    /// \param evse_id      Optional, the evse id. If omitted, a 'global' reservation will be made.
+    /// \param reservation  The reservation to make.
+    /// \return The result of the reservation (`Accepted` if the reservation could be made).
+    ///
+    types::reservation::ReservationResult make_reservation(const std::optional<uint32_t> evse_id,
+                                                           const types::reservation::Reservation& reservation);
+
+    ///
+    /// \brief Change a specific connector state.
+    ///
+    /// This is important for the reservation handler, to know which connector is in which state, to know if a
+    /// reservation can be made or not.
+    ///
+    /// \param connector_state  The state of the connector.
+    /// \param evse_id          The EVSE id the connector belongs to.
+    /// \param connector_id     The connector id.
+    ///
+    void on_connector_state_changed(const ConnectorState connector_state, const uint32_t evse_id,
+                                    const uint32_t connector_id);
+
+    ///
+    /// \brief Check if charging is possible on a given EVSE.
+    ///
+    /// If there are multiple global reservations, while a charging station might look available, it is possible that
+    /// charging is not possible because then cars that made reservations can not charge anymore.
+    ///
+    /// Only use this function to check if a car can charge without having a reservation id.
+    ///
+    /// \param evse_id  The evse on which a car wants to charge.
+    /// \return True if charging is possible.
+    ///
+    bool is_charging_possible(const uint32_t evse_id);
+
+    ///
+    /// \brief Check is an EVSE is reserved.
+    ///
+    /// This only looks at EVSE specific reservations.
+    ///
+    /// \param evse_id  The evse id to check.
+    /// \return True if EVSE is reserved.
+    ///
+    bool is_evse_reserved(const uint32_t evse_id);
+
+    ///
+    /// \brief Cancel a reservation.
+    /// \param reservation_id       The id of the reservation to cancel.
+    /// \param execute_callback     True if the `reservation_cancelled_callback` must be called.
+    /// \param reason               The cancel reason.
+    /// \return First: true if reservation could be cancelled.
+    ///         Second: The evse id if the reservation to cancel was made for a specific EVSE.
+    ///
+    std::pair<bool, std::optional<uint32_t>> cancel_reservation(const int reservation_id, const bool execute_callback,
+                                                                const types::reservation::ReservationEndReason reason);
+
+    ///
+    /// \brief Cancel a reservation.
+    /// \param evse_id              The evse id to cancel the reservation for.
+    /// \param execute_callback     True if the `reservation_cancelled_callback` must be called.
+    /// \return True if the reservation could be cancelled.
+    ///
+    bool cancel_reservation(const uint32_t evse_id, const bool execute_callback);
+
+    ///
+    /// \brief Register reservation cancelled callback.
+    /// \param callback The callback that should be called when a reservation is cancelled.
+    ///
+    void register_reservation_cancelled_callback(
+        const std::function<void(const std::optional<uint32_t>& evse_id, const int32_t reservation_id,
+                                 const types::reservation::ReservationEndReason reason,
+                                 const bool send_reservation_update)>& callback);
+
+    ///
+    /// \brief Called when a reservation is used, will remove it from the reservation list.
+    /// \param reservation_id   The if of the reservation that is used.
+    ///
+    /// \note This will not set the EVSE or Connector to 'available'. That must be done separately (because we don't
+    ///       know here when the connector is not connected anymore).
+    ///
+    void on_reservation_used(const int32_t reservation_id);
+
+    ///
+    /// @brief Function checks if the given \p id_token or \p parent_id_token matches the reserved token of the given \p
+    /// evse_id
+    ///
+    /// @param id_token          Id token
+    /// @param evse_id           Evse id
+    /// @param parent_id_token   Parent id token
+    /// @return The reservation id when there is a matching identifier, otherwise std::nullopt.
+    ///
+    std::optional<int32_t> matches_reserved_identifier(const std::string& id_token,
+                                                       const std::optional<uint32_t> evse_id,
+                                                       std::optional<std::string> parent_id_token);
+
+    ///
+    /// @brief Functions check if reservation at the given \p evse_id contains a parent_id
+    /// @param evse_id  Evse id
+    /// @return true if reservation for \p evse_id exists and reservation contains a parent_id
+    ///
+    bool has_reservation_parent_id(const std::optional<uint32_t> evse_id);
+
+    ///
+    /// \brief Check if the number of global reservations match the number of available evse's.
+    /// \return The new reservation status of the evse's.
+    ///
+    /// \note The return value has the new reserved and new available statusses (so the ones that were already reserved
+    ///       are not added to those lists).
+    ///
+    ReservationEvseStatus check_number_global_reservations_match_number_available_evses();
+
+private: // Functions
+    ///
+    /// \brief Check if there is a specific connector type in the vector.
+    /// \param evse_connectors  The vector to check for the type.
+    /// \param connector_type   The connector type to find.
+    /// \return True if the connector type is in the vector.
+    ///
+    bool has_evse_connector_type(const std::vector<Connector>& evse_connectors,
+                                 const types::evse_manager::ConnectorTypeEnum connector_type) const;
+
+    ///
+    /// \brief Check if there is at least one EVSE with the given connector type.
+    /// \param connector_type   The connector type to check.
+    /// \return True if at least one EVSE has this connector type.
+    ///
+    bool does_evse_connector_type_exist(const types::evse_manager::ConnectorTypeEnum connector_type) const;
+
+    ///
+    /// \brief Helper function to get a reservation result from the current EVSE state and connector state, and if
+    ///        there is a specific reservation for this EVSE.
+    /// \param evse_id                      The evse id to get the state from.
+    /// \param evse_specific_reservations   The evse specific reservations list to look in.
+    /// \return The `ReservationResult` to return for this specific EVSE.
+    ///
+    types::reservation::ReservationResult get_evse_connector_state_reservation_result(
+        const uint32_t evse_id, const std::map<uint32_t, types::reservation::Reservation>& evse_specific_reservations);
+
+    ///
+    /// \brief Helper function to check if the connector of a specific EVSE is available.
+    /// \param evse_id          The evse id the connector belongs to.
+    /// \param connector_type   The connector type to check.
+    /// \return The `ReservationResult` to return for his specific connector.
+    ///
+    types::reservation::ReservationResult
+    get_connector_availability_reservation_result(const uint32_t evse_id,
+                                                  const types::evse_manager::ConnectorTypeEnum connector_type);
+
+    ///
+    /// \brief Get all possible orders of connector types given a vector of connector types.
+    ///
+    /// For the reservations, there must be checked if all combinations of arriving cars with specific connector types
+    /// are possible. For that, we want to  have a list of all different combinations of arriving.
+    ///
+    /// So for example for connector type A, B and C, the different combinations are:
+    /// - A, B, C
+    /// - A, C, B
+    /// - B, A, C
+    /// - B, C, A
+    /// - C, A, B
+    /// - C, B, A
+    ///
+    /// And for connector types A, A and B, the combinations are:
+    /// - A, A, B
+    /// - A, B, A
+    /// - B, A, A
+    ///
+    /// \param connectors   The connector types to get all orders from.
+    /// \return A vector of all orders of the connector types.
+    ///
+    std::vector<std::vector<types::evse_manager::ConnectorTypeEnum>>
+    get_all_possible_orders(const std::vector<types::evse_manager::ConnectorTypeEnum>& connectors) const;
+
+    ///
+    /// \brief Helper function: For a specific order of arrival of cars, check if there is still an EVSE available for
+    /// each car.
+    ///
+    /// This function is called recursively, until no 'virtual cars' are left.
+    ///
+    /// \param used_evse_ids                The evse id's we have used in previous checks. This will be empty when the
+    ///                                     function is first called and will be filled every time an evse id is
+    ///                                     'used'.
+    /// \param next_car_arrival_order       The order in which the cars arrive. This is for example 'A, B, C' and as
+    ///                                     soon as the first is handled, it is removed from the list before
+    ///                                     recursively calling the function again.
+    /// \param evse_specific_reservations   EVSE specific reservations, to see if an EVSE is already reserved.
+    /// \return True if this combination of car arrival orders is possible.
+    ///
+    bool can_virtual_car_arrive(const std::vector<uint32_t>& used_evse_ids,
+                                const std::vector<types::evse_manager::ConnectorTypeEnum>& next_car_arrival_order,
+                                const std::map<uint32_t, types::reservation::Reservation>& evse_specific_reservations);
+
+    ///
+    /// \brief Check if it is possible to make a new reservation.
+    /// \param global_reservation_type      If it is a global reservation: the reservation type.
+    /// \param reservations_no_evse         The list of global reservations.
+    /// \param evse_specific_reservations   The list of evse specific reservations.
+    /// \return True if a reservation is possible, otherwise false.
+    ///
+    bool is_reservation_possible(const std::optional<types::evse_manager::ConnectorTypeEnum> global_reservation_type,
+                                 const std::vector<types::reservation::Reservation>& reservations_no_evse,
+                                 const std::map<uint32_t, types::reservation::Reservation>& evse_specific_reservations);
+
+    ///
+    /// \brief If a reservation is made, add the reservation to the `reservation_id_to_reservation_timeout_timer_map`.
+    /// \param reservation  The reservation.
+    /// \param evse_id      The evse id.
+    ///
+    void set_reservation_timer(const types::reservation::Reservation& reservation,
+                               const std::optional<uint32_t> evse_id);
+
+    ///
+    /// \brief Get all evses that have a specific connector type.
+    /// \param connector_type   The connector type.
+    /// \return Vector with evse's.
+    ///
+    std::vector<EVSEContext*>
+    get_all_evses_with_connector_type(const types::evse_manager::ConnectorTypeEnum connector_type) const;
+
+    ///
+    /// \brief For H01.FR.11, H01.FR.12 and H01.FR.13, the correct state must be returned.
+    ///
+    /// Also see @see module::ReservationHandler::get_reservation_evse_connector_state. This is a helper function to
+    /// return the 'more important' state (Occupied is 'more important' than Unavailable).
+    ///
+    /// \param currrent_state   The current connector state.
+    /// \param new_state        The new state.
+    /// \return The connector state.
+    ///
+    ConnectorState get_new_connector_state(ConnectorState currrent_state, const ConnectorState new_state) const;
+
+    ///
+    /// \brief For H01.FR.11, H01.FR.12 and H01.FR.13, the correct state must be returned: if (all) evses are Occupied
+    ///        or reserved, occupied must be returned, if (all) evses are Faulted, faulted must be returned, if (all)
+    ///        evses are unavailable, unavailable must be returned. This function helps returning the correct state.
+    ///
+    /// If at least one of the EVSE's is Occupied, it will return occupied, then it will look to faulted and then to
+    /// unavailable. So if one is occupied and one faulted, it will still return occupied.
+    ///
+    /// \param connector_type   The connector type to check.
+    /// \return The reservation result that can be returned on the reserve now request.
+    ///
+    types::reservation::ReservationResult
+    get_reservation_evse_connector_state(const types::evse_manager::ConnectorTypeEnum connector_type) const;
+
+    ///
+    /// \brief After a connector or evse is set to unavailable, faulted or occupied, this function can be called to
+    ///        check the reservations and cancel reservations that are not possible now anymore.
+    ///
+    void check_reservations_and_cancel_if_not_possible();
+
+    ///
+    /// \brief Store reservations to key value store.
+    ///
+    void store_reservations();
+
+    ///
+    /// \brief Get new reserved / available status for evse's and store it.
+    /// \param currently_available_evses    Current available evse's.
+    /// \param reserved_evses               Current reserved evse's.
+    /// \return A struct with changed reservation statuses compared with the last time this function was called.
+    ///
+    /// When an evse is reserved and it was available before, it will be added to the set in the struct (return value).
+    /// But when an evse is reserved and last time it was already reserved, it is not added.
+    ///
+    ReservationEvseStatus
+    get_evse_global_reserved_status_and_set_new_status(const std::set<int32_t>& currently_available_evses,
+                                                       const std::set<int32_t>& reserved_evses);
+
+    ///
+    /// \brief Helper function to print information about reservations and evses, to find out why a reservation has
+    ///        failed.
+    /// \param reservation  The reservation.
+    /// \param evse_id      The evse id.
+    ///
+    void print_reservations_debug_info(const types::reservation::Reservation& reservation,
+                                       const std::optional<uint32_t> evse_id, const bool reservation_failed);
+};
+
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/lib/CMakeLists.txt

@@ -0,0 +1,39 @@
+set(MODULE_DIR "${PROJECT_SOURCE_DIR}/modules/EVSE/Auth")
+set(INCLUDE_DIR "${MODULE_DIR}/include")
+
+add_library(auth_handler STATIC)
+ev_register_library_target(auth_handler)
+
+target_sources(auth_handler PRIVATE
+    AuthHandler.cpp
+    Connector.cpp
+    ReservationHandler.cpp
+    ConnectorStateMachine.cpp
+)
+
+get_target_property(GENERATED_INCLUDE_DIR generate_cpp_files EVEREST_GENERATED_INCLUDE_DIR)
+
+target_include_directories(auth_handler PRIVATE
+    ${INCLUDE_DIR}
+    ${GENERATED_INCLUDE_DIR}
+)
+
+add_dependencies(auth_handler generate_cpp_files)
+
+target_link_libraries(auth_handler
+PRIVATE
+    everest::timer
+    date::date
+    date::date-tz
+    everest::framework
+    everest::helpers
+)
+
+# needs c++ 14
+target_compile_features(auth_handler PRIVATE cxx_std_14)
+
+if(EVEREST_ENABLE_COMPILE_WARNINGS)
+    target_compile_options(auth_handler
+        PRIVATE ${EVEREST_COMPILE_OPTIONS}
+    )
+endif()

tools/EVerest-main/modules/EVSE/Auth/lib/Connector.cpp

@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include <Connector.hpp>
+
+namespace module {
+
+void Connector::submit_event(ConnectorEvent event) {
+    state_machine.handle_event(event);
+}
+
+ConnectorState Connector::get_state() const {
+    return this->state_machine.get_state();
+}
+
+bool Connector::is_unavailable() const {
+    return this->get_state() == ConnectorState::UNAVAILABLE || this->get_state() == ConnectorState::UNAVAILABLE_FAULTED;
+}
+
+namespace conversions {
+std::string connector_state_to_string(const ConnectorState& state) {
+    switch (state) {
+    case ConnectorState::AVAILABLE:
+        return "AVAILABLE";
+    case ConnectorState::OCCUPIED:
+        return "OCCUPIED";
+    case ConnectorState::UNAVAILABLE:
+        return "UNAVAILABLE";
+    case ConnectorState::FAULTED:
+        return "FAULTED";
+    case ConnectorState::FAULTED_OCCUPIED:
+        return "FAULTED_OCCUPIED";
+    case ConnectorState::UNAVAILABLE_FAULTED:
+        return "UNAVAILABLE_FAULTED";
+    default:
+        throw std::runtime_error("No known conversion for the given connector state");
+    }
+}
+
+} // namespace conversions
+
+bool EVSEContext::is_available() {
+    if (this->plug_in_timeout) {
+        return false;
+    }
+
+    // if an identifier is present, an EVSE is not considered available
+    if (this->identifier.has_value()) {
+        return false;
+    }
+
+    bool occupied = false;
+    bool available = false;
+    for (const auto& connector : this->connectors) {
+        if (connector.get_state() == ConnectorState::OCCUPIED ||
+            connector.get_state() == ConnectorState::FAULTED_OCCUPIED) {
+            occupied = true;
+        }
+        if (connector.get_state() != ConnectorState::UNAVAILABLE && connector.get_state() != ConnectorState::FAULTED) {
+            available = true;
+        }
+    }
+
+    if (occupied) {
+        // When at least one connector is occupied, they are both not available.
+        return false;
+    }
+
+    return available;
+}
+
+bool EVSEContext::is_unavailable() {
+    for (const auto& connector : this->connectors) {
+        if (!connector.is_unavailable()) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+// namespace conversions
+
+// namespace conversions
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/lib/ConnectorStateMachine.cpp

@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include <ConnectorStateMachine.hpp>
+
+namespace module {
+
+ConnectorStateMachine::ConnectorStateMachine(ConnectorState initial_state) : state(initial_state) {
+}
+
+bool ConnectorStateMachine::handle_event(ConnectorEvent event) {
+    switch (state) {
+    case ConnectorState::AVAILABLE:
+        switch (event) {
+        case ConnectorEvent::TRANSACTION_STARTED:
+            state = ConnectorState::OCCUPIED;
+            return true;
+        case ConnectorEvent::DISABLE:
+            state = ConnectorState::UNAVAILABLE;
+            return true;
+        case ConnectorEvent::FAULTED:
+            state = ConnectorState::FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::UNAVAILABLE:
+        switch (event) {
+        case ConnectorEvent::ENABLE:
+            state = ConnectorState::AVAILABLE;
+            return true;
+        case ConnectorEvent::FAULTED:
+            state = ConnectorState::UNAVAILABLE_FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::FAULTED:
+        switch (event) {
+        case ConnectorEvent::ERROR_CLEARED:
+            state = ConnectorState::AVAILABLE;
+            return true;
+        case ConnectorEvent::DISABLE:
+            state = ConnectorState::UNAVAILABLE_FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::OCCUPIED:
+        switch (event) {
+        case ConnectorEvent::SESSION_FINISHED:
+            state = ConnectorState::AVAILABLE;
+            return true;
+        case ConnectorEvent::FAULTED:
+            state = ConnectorState::FAULTED_OCCUPIED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::FAULTED_OCCUPIED:
+        switch (event) {
+        case ConnectorEvent::ERROR_CLEARED:
+            state = ConnectorState::OCCUPIED;
+            return true;
+        case ConnectorEvent::SESSION_FINISHED:
+            state = ConnectorState::FAULTED;
+            return true;
+        default:
+            return false;
+        }
+
+    case ConnectorState::UNAVAILABLE_FAULTED:
+        switch (event) {
+        case ConnectorEvent::ENABLE:
+            state = ConnectorState::FAULTED;
+            return true;
+        case ConnectorEvent::ERROR_CLEARED:
+            state = ConnectorState::UNAVAILABLE;
+            return true;
+        default:
+            return false;
+        }
+
+    default:
+        // could/should not happen!
+        return false;
+    }
+}
+
+ConnectorState ConnectorStateMachine::get_state() const {
+    return this->state;
+}
+
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/lib/ReservationHandler.cpp

@@ -0,0 +1,878 @@
+#include <ReservationHandler.hpp>
+
+#include <algorithm>
+
+#include <Connector.hpp>
+
+#include <everest/helpers/helpers.hpp>
+#include <everest/logging.hpp>
+#include <generated/interfaces/kvs/Interface.hpp>
+#include <utils/date.hpp>
+
+using everest::helpers::is_equal_case_insensitive;
+
+namespace module {
+
+static types::reservation::ReservationResult
+connector_state_to_reservation_result(const ConnectorState connector_state);
+
+ReservationHandler::ReservationHandler(std::map<int, std::unique_ptr<module::EVSEContext>>& evses,
+                                       const std::string& id, kvsIntf* store) :
+    evses(evses), kvs_store_key_id("reservation_" + id), store(store) {
+    // Create this worker thread and io service etc here for the timer.
+    this->work = boost::make_shared<boost::asio::executor_work_guard<boost::asio::io_context::executor_type>>(
+        boost::asio::make_work_guard(this->io_context));
+    this->io_context_thread = std::thread([this]() { this->io_context.run(); });
+}
+
+ReservationHandler::~ReservationHandler() {
+    this->reservation_id_to_reservation_timeout_timer_map.clear();
+    work->get_executor().context().stop();
+    (*work).reset(); // explicitly call underlying reset method, not the smart pointer reset
+    io_context.stop();
+    io_context_thread.join();
+}
+
+void ReservationHandler::load_reservations() {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    if (this->store == nullptr) {
+        EVLOG_warning << "Can not load reservations because no storage was configured.";
+        return;
+    }
+
+    const auto stored_reservations = store->call_load(this->kvs_store_key_id);
+    const Array* reservations_json = std::get_if<Array>(&stored_reservations);
+    if (reservations_json == nullptr) {
+        EVLOG_warning << "Can not load reservations: reservations is not a json array.";
+        return;
+    }
+
+    for (const auto& reservation : *reservations_json) {
+        types::reservation::Reservation r;
+        try {
+            r = reservation.at("reservation");
+        } catch (const json::exception& e) {
+            EVLOG_error << "Could not get reservation from store: " << e.what();
+            continue;
+        }
+
+        std::optional<uint32_t> evse_id;
+        if (reservation.contains("evse_id")) {
+            evse_id = reservation.at("evse_id");
+        }
+
+        types::reservation::ReservationResult reservation_result = this->make_reservation(evse_id, r);
+        if (reservation_result != types::reservation::ReservationResult::Accepted) {
+            EVLOG_warning << "Load reservations: Could not make reservation with id " << r.reservation_id
+                          << ": reservation cancelled.";
+            this->reservation_cancelled_callback(evse_id, r.reservation_id,
+                                                 types::reservation::ReservationEndReason::Cancelled, true);
+        }
+    }
+}
+
+types::reservation::ReservationResult
+ReservationHandler::make_reservation(const std::optional<uint32_t> evse_id,
+                                     const types::reservation::Reservation& reservation) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    if (date::utc_clock::now() > Everest::Date::from_rfc3339(reservation.expiry_time)) {
+        EVLOG_info << "Rejecting reservation because expire time is in the past.";
+        return types::reservation::ReservationResult::Rejected;
+    }
+
+    // If a reservation was made with an existing reservation id, the existing reservation must be replaced (H01.FR.01).
+    // We cancel the reservation here because of that. That also means that if the reservation can not be made, the old
+    // reservation is cancelled anyway.
+    std::pair<bool, std::optional<uint32_t>> reservation_cancelled = this->cancel_reservation(
+        reservation.reservation_id, false, types::reservation::ReservationEndReason::Cancelled);
+    if (reservation_cancelled.first && reservation_cancelled.second.has_value()) {
+        EVLOG_debug << "Cancelled reservation with id " << reservation.reservation_id << " for evse id "
+                    << reservation_cancelled.second.value() << " because a reservation with the same id was made";
+    }
+
+    if (evse_id.has_value()) {
+        if (this->evse_reservations.count(evse_id.value()) > 0) {
+            // There already is a reservation for this evse.
+            EVLOG_debug << "Rejected reservation because there already is a reservation for this evse.";
+            return types::reservation::ReservationResult::Occupied;
+        }
+
+        if (this->evses.count(evse_id.value()) == 0) {
+            // There is no evse with this evse id.
+            EVLOG_warning << "Rejected reservation because there is no evse with this evse id: " << evse_id.value();
+            return types::reservation::ReservationResult::Rejected;
+        }
+        const types::evse_manager::ConnectorTypeEnum connector_type =
+            reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown);
+
+        // We have to return a valid state here.
+        // So if one or all connectors are occupied or reserved, return occupied. (H01.FR.11)
+        // If one or all are faulted, return faulted. (H01.FR.12)
+        // If one or all are unavailable, return unavailable. (H01.FR.13)
+        // It is not clear what to return if one is faulted, one occupied and one available so in that case the first
+        // in row is returned, which is occupied.
+        const types::reservation::ReservationResult evse_state =
+            this->get_evse_connector_state_reservation_result(evse_id.value(), this->evse_reservations);
+        const types::reservation::ReservationResult connector_state =
+            this->get_connector_availability_reservation_result(evse_id.value(), connector_type);
+
+        if (!has_evse_connector_type(this->evses[evse_id.value()]->connectors, connector_type)) {
+            EVLOG_debug << "Rejected reservation because this evse (id: " << evse_id.value()
+                        << ") does not have the requested connector type ("
+                        << types::evse_manager::connector_type_enum_to_string(connector_type) << ")";
+            return types::reservation::ReservationResult::Rejected;
+        } else if (evse_state != types::reservation::ReservationResult::Accepted) {
+            print_reservations_debug_info(reservation, evse_id, true);
+            EVLOG_debug << "Rejecting reservation because connector is not available";
+            return evse_state;
+        } else if (connector_state != types::reservation::ReservationResult::Accepted) {
+            print_reservations_debug_info(reservation, evse_id, true);
+            return connector_state;
+        } else {
+            // Everything fine, continue.
+            if (global_reservations.empty()) {
+                set_reservation_timer(reservation, evse_id);
+                this->evse_reservations[evse_id.value()] = reservation;
+                EVLOG_info << "Created reservation for evse id " << evse_id.value() << ", connector type "
+                           << types::evse_manager::connector_type_enum_to_string(
+                                  reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown));
+                return types::reservation::ReservationResult::Accepted;
+            }
+
+            // Make a copy of the evse specific reservations map so we can add this reservation to test if the
+            // reservation is possible. Only if it is, we add it to the 'member' map.
+            std::map<uint32_t, types::reservation::Reservation> evse_specific_reservations = this->evse_reservations;
+            evse_specific_reservations[evse_id.value()] = reservation;
+
+            // Check if the reservations are possible with the added evse specific reservation.
+            if (!is_reservation_possible(std::nullopt, this->global_reservations, evse_specific_reservations)) {
+                print_reservations_debug_info(reservation, evse_id, true);
+                return get_reservation_evse_connector_state(connector_type);
+            }
+
+            // Reservation is possible, add to evse specific reservations.
+            this->evse_reservations[evse_id.value()] = reservation;
+            EVLOG_info << "Created reservation for evse id " << evse_id.value() << ", connector type "
+                       << types::evse_manager::connector_type_enum_to_string(
+                              reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown));
+        }
+    } else {
+        if (reservation.connector_type.has_value() &&
+            !does_evse_connector_type_exist(reservation.connector_type.value())) {
+            EVLOG_info << "Can not make reservation because the connector type does not exist.";
+            return types::reservation::ReservationResult::Rejected;
+        }
+
+        const types::evse_manager::ConnectorTypeEnum connector_type =
+            reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown);
+        if (!is_reservation_possible(connector_type, this->global_reservations, this->evse_reservations)) {
+            print_reservations_debug_info(reservation, evse_id, true);
+            return get_reservation_evse_connector_state(connector_type);
+        }
+
+        EVLOG_info << "Created reservation for connector type "
+                   << types::evse_manager::connector_type_enum_to_string(
+                          reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown));
+        global_reservations.push_back(reservation);
+        store_reservations();
+    }
+
+    set_reservation_timer(reservation, evse_id);
+
+    return types::reservation::ReservationResult::Accepted;
+}
+
+void ReservationHandler::on_connector_state_changed(const ConnectorState connector_state, const uint32_t evse_id,
+                                                    const uint32_t connector_id) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    if (connector_state == ConnectorState::AVAILABLE) {
+        // Nothing to cancel.
+        return;
+    }
+
+    if (this->evses.count(static_cast<int32_t>(evse_id)) == 0) {
+        EVLOG_warning << "on_connector_state_changed: evse " << evse_id << " does not exist. This should not happen.";
+        return;
+    }
+
+    auto& connectors = this->evses[evse_id]->connectors;
+    auto connector_it = std::find_if(connectors.begin(), connectors.end(),
+                                     [connector_id](const auto& connector) { return connector_id == connector.id; });
+
+    if (connector_it == connectors.end()) {
+        // Connector with specific connector id not found
+        EVLOG_warning << "Could not change connector state for connector id " << connector_id << " of evse " << evse_id
+                      << ": connector id does not exist. This should not happen.";
+        return;
+    }
+
+    const bool reservation_exists = evse_reservations.count(evse_id) != 0;
+
+    if (reservation_exists && evse_reservations[evse_id].connector_type.has_value() &&
+        (connector_it->type == evse_reservations[evse_id].connector_type.value() ||
+         connector_it->type == types::evse_manager::ConnectorTypeEnum::Unknown ||
+         evse_reservations[evse_id].connector_type.value() == types::evse_manager::ConnectorTypeEnum::Unknown)) {
+        cancel_reservation(evse_reservations[evse_id].reservation_id, true,
+                           types::reservation::ReservationEndReason::Cancelled);
+        return;
+    }
+
+    // Now we might have one connector less, let's check if all reservations are still possible now and if not, cancel
+    // the one(s) that can not be done anymore.
+    check_reservations_and_cancel_if_not_possible();
+}
+
+bool ReservationHandler::is_charging_possible(const uint32_t evse_id) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    if (this->evse_reservations.count(evse_id) > 0) {
+        return false;
+    }
+
+    if (this->evses.count(evse_id) == 0) {
+        // Not existing evse id
+        return false;
+    }
+
+    std::map<uint32_t, types::reservation::Reservation> reservations = this->evse_reservations;
+    // We want to test if charging is possible on this evse id with the current reservations. For that, we do like it
+    // is a new reservation and check if that reservation is possible. If it is, we can charge on that evse.
+    types::reservation::Reservation r;
+    // It is a dummy reservation so the details are not important.
+    reservations[evse_id] = r;
+    return is_reservation_possible(std::nullopt, this->global_reservations, reservations);
+}
+
+bool ReservationHandler::is_evse_reserved(const uint32_t evse_id) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    if (this->evse_reservations.count(evse_id) > 0) {
+        return true;
+    }
+
+    return false;
+}
+
+std::pair<bool, std::optional<uint32_t>>
+ReservationHandler::cancel_reservation(const int reservation_id, const bool execute_callback,
+                                       const types::reservation::ReservationEndReason reason) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    std::pair<bool, std::optional<uint32_t>> result;
+
+    bool reservation_cancelled = false;
+
+    auto reservation_id_timer_it = this->reservation_id_to_reservation_timeout_timer_map.find(reservation_id);
+    if (reservation_id_timer_it != this->reservation_id_to_reservation_timeout_timer_map.end()) {
+        reservation_id_timer_it->second->stop();
+        this->reservation_id_to_reservation_timeout_timer_map.erase(reservation_id_timer_it);
+        reservation_cancelled = true;
+        result.first = true;
+    }
+
+    if (!reservation_cancelled) {
+        result.first = false;
+        return result;
+    }
+
+    EVLOG_info << "Cancel reservation with reservation id " << reservation_id;
+
+    std::optional<uint32_t> evse_id;
+    for (const auto& reservation : this->evse_reservations) {
+        if (reservation.second.reservation_id == reservation_id) {
+            evse_id = reservation.first;
+        }
+    }
+
+    if (evse_id.has_value()) {
+        auto it = this->evse_reservations.find(evse_id.value());
+        if (it != this->evse_reservations.end()) {
+            this->evse_reservations.erase(it);
+        } else {
+            EVLOG_warning << "Could not remove reservation with evse id " << evse_id.value()
+                          << ": this should not happen";
+        }
+
+    } else {
+        // No evse, search in global reservations
+        const auto& it = std::find_if(this->global_reservations.begin(), this->global_reservations.end(),
+                                      [reservation_id](const types::reservation::Reservation& reservation) {
+                                          return reservation.reservation_id == reservation_id;
+                                      });
+
+        if (it != this->global_reservations.end()) {
+            this->global_reservations.erase(it);
+        }
+    }
+
+    this->store_reservations();
+
+    if (execute_callback && this->reservation_cancelled_callback != nullptr) {
+        this->reservation_cancelled_callback(evse_id, reservation_id, reason, execute_callback);
+    }
+
+    result.second = evse_id;
+    return result;
+}
+
+bool ReservationHandler::cancel_reservation(const uint32_t evse_id, const bool execute_callback) {
+    auto it = this->evse_reservations.find(evse_id);
+    if (it != this->evse_reservations.end()) {
+        int reservation_id = it->second.reservation_id;
+        return this
+            ->cancel_reservation(reservation_id, execute_callback, types::reservation::ReservationEndReason::Cancelled)
+            .first;
+    } else {
+        EVLOG_warning << "Could not cancel reservation with evse id " << evse_id;
+        return false;
+    }
+}
+
+void ReservationHandler::register_reservation_cancelled_callback(
+    const std::function<void(const std::optional<uint32_t>& evse_id, const int32_t reservation_id,
+                             const types::reservation::ReservationEndReason reason,
+                             const bool send_reservation_update)>& callback) {
+    this->reservation_cancelled_callback = callback;
+}
+
+void ReservationHandler::on_reservation_used(const int32_t reservation_id) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    const std::pair<bool, std::optional<uint32_t>> cancelled =
+        this->cancel_reservation(reservation_id, false, types::reservation::ReservationEndReason::UsedToStartCharging);
+    if (cancelled.first) {
+        if (cancelled.second.has_value()) {
+            EVLOG_info << "Reservation (" << reservation_id << ") for evse#" << cancelled.second.value()
+                       << " used and cancelled";
+        } else {
+            EVLOG_info << "Reservation (" << reservation_id << ") without evse id used and cancelled";
+        }
+    } else {
+        EVLOG_info << "Could not cancel reservation with reservation id " << reservation_id;
+    }
+}
+
+std::optional<int32_t> ReservationHandler::matches_reserved_identifier(const std::string& id_token,
+                                                                       const std::optional<uint32_t> evse_id,
+                                                                       std::optional<std::string> parent_id_token) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    EVLOG_debug << "Matches reserved identifier for evse id " << (evse_id.has_value() ? evse_id.value() : 9999)
+                << " and id token " << everest::helpers::redact(id_token) << " and parent id token "
+                << (parent_id_token.has_value() ? everest::helpers::redact(parent_id_token.value()) : "-");
+
+    // Return true if id tokens match or parent id tokens exists and match.
+    if (evse_id.has_value()) {
+        if (this->evse_reservations.count(evse_id.value())) {
+            const types::reservation::Reservation& reservation = this->evse_reservations[evse_id.value()];
+            if (is_equal_case_insensitive(reservation.id_token, id_token) ||
+                (parent_id_token.has_value() && reservation.parent_id_token.has_value() &&
+                 is_equal_case_insensitive(parent_id_token.value(), reservation.parent_id_token.value()))) {
+                EVLOG_debug << "There is a reservation (" << reservation.reservation_id << ") for evse "
+                            << evse_id.value() << " and the token matches";
+                return reservation.reservation_id;
+            } else {
+                EVLOG_debug << "There is a reservation for evse id " << evse_id.value() << ", but token does not match";
+                return std::nullopt;
+            }
+        }
+    }
+
+    // If evse_id == 0 or there is no reservation found with the given evse id, search globally for reservation with
+    // this token.
+    for (const auto& reservation : global_reservations) {
+        if (is_equal_case_insensitive(reservation.id_token, id_token) ||
+            (parent_id_token.has_value() && reservation.parent_id_token.has_value() &&
+             is_equal_case_insensitive(parent_id_token.value(), reservation.parent_id_token.value()))) {
+            EVLOG_debug << "There is a reservation for the token, reservation id: " << reservation.reservation_id;
+            return reservation.reservation_id;
+        }
+    }
+
+    EVLOG_debug << "No reservation found which matches the reserved identifier";
+    return std::nullopt;
+}
+
+bool ReservationHandler::has_reservation_parent_id(const std::optional<uint32_t> evse_id) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    if (evse_id.has_value()) {
+        if (this->evses.count(evse_id.value()) == 0) {
+            // EVSE id does not exist.
+            return false;
+        }
+
+        if (this->evse_reservations.count(evse_id.value())) {
+            return this->evse_reservations[evse_id.value()].parent_id_token.has_value();
+        }
+    }
+
+    // Check if one of the global reservations has a parent id.
+    for (const auto& reservation : this->global_reservations) {
+        if (reservation.parent_id_token.has_value()) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+ReservationEvseStatus ReservationHandler::check_number_global_reservations_match_number_available_evses() {
+    std::unique_lock<std::recursive_mutex> reservation_lock(this->event_mutex);
+    std::set<int32_t> available_evses;
+    // Get all evse's that are not reserved or used.
+    for (const auto& evse : this->evses) {
+        if (get_evse_connector_state_reservation_result(static_cast<uint32_t>(evse.first), this->evse_reservations) ==
+                types::reservation::ReservationResult::Accepted &&
+            get_connector_availability_reservation_result(static_cast<uint32_t>(evse.first),
+                                                          types::evse_manager::ConnectorTypeEnum::Unknown) ==
+                types::reservation::ReservationResult::Accepted) {
+            available_evses.insert(evse.first);
+        }
+    }
+    if (available_evses.size() == this->global_reservations.size()) {
+        // There are as many evses available as 'global' reservations, so all evse's are reserved. Set all available
+        // evse's to reserved.
+        return get_evse_global_reserved_status_and_set_new_status(available_evses, available_evses);
+    }
+
+    // There are not as many global reservations as available evse's, but we have to check for specific connector types
+    // as well.
+    std::set<int32_t> reserved_evses_with_specific_connector_type;
+    for (const auto& global_reservation : this->global_reservations) {
+        if (!is_reservation_possible(global_reservation.connector_type, this->global_reservations,
+                                     this->evse_reservations)) {
+            // A new reservation with this type is not possible (so also arrival of an extra car is not), so all evse's
+            // with this connector type should be set to reserved.
+            for (const auto& evse : this->evses) {
+                if (available_evses.find(evse.first) != available_evses.end() &&
+                    this->has_evse_connector_type(
+                        evse.second->connectors,
+                        global_reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown))) {
+                    // This evse is available and has a specific connector type. So it should be set to unavailable.
+                    reserved_evses_with_specific_connector_type.insert(evse.first);
+                }
+            }
+        }
+    }
+
+    return get_evse_global_reserved_status_and_set_new_status(available_evses,
+                                                              reserved_evses_with_specific_connector_type);
+}
+
+bool ReservationHandler::has_evse_connector_type(const std::vector<Connector>& evse_connectors,
+                                                 const types::evse_manager::ConnectorTypeEnum connector_type) const {
+    if (connector_type == types::evse_manager::ConnectorTypeEnum::Unknown) {
+        return true;
+    }
+
+    for (const auto& connector : evse_connectors) {
+        if (connector.type == types::evse_manager::ConnectorTypeEnum::Unknown || connector.type == connector_type) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool ReservationHandler::does_evse_connector_type_exist(
+    const types::evse_manager::ConnectorTypeEnum connector_type) const {
+    for (const auto& [evse_id, evse] : evses) {
+        if (has_evse_connector_type(evse->connectors, connector_type)) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+types::reservation::ReservationResult ReservationHandler::get_evse_connector_state_reservation_result(
+    const uint32_t evse_id, const std::map<uint32_t, types::reservation::Reservation>& evse_specific_reservations) {
+    if (evses.count(evse_id) == 0) {
+        EVLOG_warning << "Get evse state for evse " << evse_id
+                      << " not possible: evse id does not exists. This should not happen.";
+        return types::reservation::ReservationResult::Rejected;
+    }
+
+    // Check if evse is available.
+    if (evses[evse_id]->plugged_in) {
+        return connector_state_to_reservation_result(ConnectorState::OCCUPIED);
+    }
+
+    // If one connector is occupied, then the other connector can also not be used (one connector of an evse can be
+    // used at the same time).
+    for (const auto& connector : evses[evse_id]->connectors) {
+        if (connector.get_state() == ConnectorState::OCCUPIED ||
+            connector.get_state() == ConnectorState::FAULTED_OCCUPIED) {
+            return connector_state_to_reservation_result(connector.get_state());
+        }
+    }
+
+    // If evse is reserved, it is not available.
+    if (evse_specific_reservations.count(evse_id) > 0) {
+        return types::reservation::ReservationResult::Occupied;
+    }
+
+    return types::reservation::ReservationResult::Accepted;
+}
+
+types::reservation::ReservationResult ReservationHandler::get_connector_availability_reservation_result(
+    const uint32_t evse_id, const types::evse_manager::ConnectorTypeEnum connector_type) {
+    if (evses.count(evse_id) == 0) {
+        EVLOG_warning << "Request if connector is available for evse id " << evse_id
+                      << ", but evse id does not exist. This should not happen.";
+        return types::reservation::ReservationResult::Rejected;
+    }
+
+    ConnectorState connector_state = ConnectorState::UNAVAILABLE;
+
+    for (const auto& connector : evses[evse_id]->connectors) {
+        if ((connector.type == connector_type || connector.type == types::evse_manager::ConnectorTypeEnum::Unknown ||
+             connector_type == types::evse_manager::ConnectorTypeEnum::Unknown)) {
+            if (connector.get_state() == ConnectorState::AVAILABLE) {
+                return types::reservation::ReservationResult::Accepted;
+            } else {
+                connector_state = get_new_connector_state(connector_state, connector.get_state());
+            }
+        }
+    }
+
+    return connector_state_to_reservation_result(connector_state);
+}
+
+std::vector<std::vector<types::evse_manager::ConnectorTypeEnum>> ReservationHandler::get_all_possible_orders(
+    const std::vector<types::evse_manager::ConnectorTypeEnum>& connectors) const {
+
+    std::vector<types::evse_manager::ConnectorTypeEnum> input_next = connectors;
+    std::vector<types::evse_manager::ConnectorTypeEnum> input_prev = connectors;
+    std::vector<std::vector<types::evse_manager::ConnectorTypeEnum>> output;
+
+    if (connectors.empty()) {
+        return output;
+    }
+
+    // For next_permutation, the input must be ordered or it will stop halfway. So if it stops halafway,
+    // prev_permutation will find the others.
+    do {
+        output.push_back(input_next);
+    } while (std::next_permutation(input_next.begin(), input_next.end()));
+
+    while (std::prev_permutation(input_prev.begin(), input_prev.end())) {
+        output.push_back(input_prev);
+    }
+
+    return output;
+}
+
+bool ReservationHandler::can_virtual_car_arrive(
+    const std::vector<uint32_t>& used_evse_ids,
+    const std::vector<types::evse_manager::ConnectorTypeEnum>& next_car_arrival_order,
+    const std::map<uint32_t, types::reservation::Reservation>& evse_specific_reservations) {
+
+    bool is_possible = false;
+
+    for (const auto& [evse_id, evse] : evses) {
+        // Check if there is a car already at this evse id.
+        if (std::find(used_evse_ids.begin(), used_evse_ids.end(), evse_id) != used_evse_ids.end()) {
+            continue;
+        }
+
+        if (get_evse_connector_state_reservation_result(evse_id, evse_specific_reservations) ==
+                types::reservation::ReservationResult::Accepted &&
+            has_evse_connector_type(evse->connectors, next_car_arrival_order.at(0)) &&
+            get_connector_availability_reservation_result(evse_id, next_car_arrival_order.at(0)) ==
+                types::reservation::ReservationResult::Accepted) {
+            is_possible = true;
+
+            std::vector<uint32_t> next_used_evse_ids = used_evse_ids;
+            // Add evse id to list when we call the function recursively.
+            next_used_evse_ids.push_back(evse_id);
+
+            // Check if this is the last.
+            if (next_car_arrival_order.size() == 1) {
+                // If this is the last and a car can arrive, then this combination is possible.
+                return true;
+            }
+
+            // Call next level recursively.
+            // Remove connector type ('car') from list when we call the function recursively.
+            const std::vector<types::evse_manager::ConnectorTypeEnum> next_arrival_order(
+                next_car_arrival_order.begin() + 1, next_car_arrival_order.end());
+
+            if (!this->can_virtual_car_arrive(next_used_evse_ids, next_arrival_order, evse_specific_reservations)) {
+                return false;
+            }
+        }
+    }
+
+    return is_possible;
+}
+
+bool ReservationHandler::is_reservation_possible(
+    const std::optional<types::evse_manager::ConnectorTypeEnum> global_reservation_type,
+    const std::vector<types::reservation::Reservation>& reservations_no_evse,
+    const std::map<uint32_t, types::reservation::Reservation>& evse_specific_reservations) {
+
+    std::vector<types::evse_manager::ConnectorTypeEnum> types;
+    for (const auto& global_reservation : reservations_no_evse) {
+        types.push_back(global_reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown));
+    }
+
+    if (global_reservation_type.has_value()) {
+        types.push_back(global_reservation_type.value());
+    }
+
+    // Check if the total amount of reservations is not more than the total amount of evse's.
+    if (types.size() + evse_specific_reservations.size() > this->evses.size()) {
+        return false;
+    }
+
+    const std::vector<std::vector<types::evse_manager::ConnectorTypeEnum>> orders = get_all_possible_orders(types);
+
+    for (const auto& o : orders) {
+        if (!this->can_virtual_car_arrive({}, o, evse_specific_reservations)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+void ReservationHandler::set_reservation_timer(const types::reservation::Reservation& reservation,
+                                               const std::optional<uint32_t> evse_id) {
+    std::lock_guard<std::recursive_mutex> lk(this->event_mutex);
+    this->reservation_id_to_reservation_timeout_timer_map[reservation.reservation_id] =
+        std::make_unique<Everest::SteadyTimer>(&this->io_context);
+
+    this->reservation_id_to_reservation_timeout_timer_map[reservation.reservation_id]->at(
+        [this, reservation, evse_id]() {
+            if (evse_id.has_value()) {
+                EVLOG_info << "Reservation expired for evse #" << evse_id.value()
+                           << " (reservation id: " << reservation.reservation_id << ")";
+            } else {
+                EVLOG_info << "Reservation expired for reservation id " << reservation.reservation_id;
+            }
+
+            this->cancel_reservation(reservation.reservation_id, true,
+                                     types::reservation::ReservationEndReason::Expired);
+        },
+        Everest::Date::from_rfc3339(reservation.expiry_time));
+}
+
+std::vector<EVSEContext*> ReservationHandler::get_all_evses_with_connector_type(
+    const types::evse_manager::ConnectorTypeEnum connector_type) const {
+    std::vector<EVSEContext*> result;
+    for (const auto& evse : this->evses) {
+        if (this->has_evse_connector_type(evse.second->connectors, connector_type)) {
+            result.push_back(evse.second.get());
+        }
+    }
+
+    return result;
+}
+
+ConnectorState ReservationHandler::get_new_connector_state(ConnectorState current_state,
+                                                           const ConnectorState new_state) const {
+    if (new_state == ConnectorState::OCCUPIED) {
+        return ConnectorState::OCCUPIED;
+    }
+
+    if (new_state > current_state) {
+        if (new_state > ConnectorState::OCCUPIED) {
+            if (new_state == ConnectorState::FAULTED_OCCUPIED) {
+                current_state = ConnectorState::OCCUPIED;
+            } else if (new_state == ConnectorState::UNAVAILABLE_FAULTED) {
+                if (current_state != ConnectorState::OCCUPIED) {
+                    current_state = ConnectorState::FAULTED;
+                }
+            }
+        } else {
+            current_state = new_state;
+        }
+    }
+
+    return current_state;
+}
+
+types::reservation::ReservationResult ReservationHandler::get_reservation_evse_connector_state(
+    const types::evse_manager::ConnectorTypeEnum connector_type) const {
+    // If at least one connector is occupied, return occupied.
+    if (!global_reservations.empty() || !(evse_reservations.empty())) {
+        return types::reservation::ReservationResult::Occupied;
+    }
+
+    bool found_state = false;
+
+    ConnectorState state = ConnectorState::UNAVAILABLE;
+
+    for (const auto& [evse_id, evse] : evses) {
+        if (evse->plugged_in) {
+            // Overwrite state if we found a connector that was not available (if needed).
+            state = get_new_connector_state(state, ConnectorState::OCCUPIED);
+            found_state = true;
+        }
+    }
+
+    if (!found_state) {
+        const std::vector<EVSEContext*> evses_with_connector_type =
+            this->get_all_evses_with_connector_type(connector_type);
+        if (evses_with_connector_type.empty()) {
+            // This should not happen because then it should have been rejected before already somewhere in the
+            // code...
+            return types::reservation::ReservationResult::Rejected;
+        }
+
+        // Get all evse's with this specific connector type and check the connectors availability states.
+        for (const auto& evse : evses_with_connector_type) {
+            for (const auto& connector : evse->connectors) {
+                if (connector.type != connector_type &&
+                    connector.type != types::evse_manager::ConnectorTypeEnum::Unknown &&
+                    connector_type != types::evse_manager::ConnectorTypeEnum::Unknown) {
+                    continue;
+                }
+
+                if (connector.get_state() != ConnectorState::AVAILABLE) {
+                    state = get_new_connector_state(state, connector.get_state());
+                }
+            }
+        }
+    }
+
+    return connector_state_to_reservation_result(state);
+}
+
+void ReservationHandler::check_reservations_and_cancel_if_not_possible() {
+
+    std::vector<int32_t> reservations_to_cancel;
+    std::map<uint32_t, types::reservation::Reservation> evse_specific_reservations;
+    std::vector<types::reservation::Reservation> reservations_no_evse;
+
+    for (const auto& [evse_id, reservation] : this->evse_reservations) {
+        evse_specific_reservations[evse_id] = reservation;
+        if (!is_reservation_possible(std::nullopt, reservations_no_evse, evse_specific_reservations)) {
+            reservations_to_cancel.push_back(reservation.reservation_id);
+            evse_specific_reservations.erase(evse_id);
+        }
+    }
+
+    for (const auto& reservation : this->global_reservations) {
+        if (is_reservation_possible(reservation.connector_type, reservations_no_evse, evse_specific_reservations)) {
+            reservations_no_evse.push_back(reservation);
+        } else {
+            reservations_to_cancel.push_back(reservation.reservation_id);
+        }
+    }
+
+    for (const int32_t reservation_id : reservations_to_cancel) {
+        this->cancel_reservation(reservation_id, true, types::reservation::ReservationEndReason::Cancelled);
+    }
+}
+
+void ReservationHandler::store_reservations() {
+    if (this->store == nullptr) {
+        return;
+    }
+
+    Array reservations = json::array();
+    for (const auto& reservation : this->evse_reservations) {
+
+        json r = json::object({{"evse_id", reservation.first}, {"reservation", reservation.second}});
+        reservations.push_back(r);
+    }
+
+    for (const auto& reservation : this->global_reservations) {
+        json r = json::object({{"reservation", reservation}});
+        reservations.push_back(r);
+    }
+
+    if (!reservations.empty()) {
+        this->store->call_store(this->kvs_store_key_id, reservations);
+    }
+}
+
+ReservationEvseStatus ReservationHandler::get_evse_global_reserved_status_and_set_new_status(
+    const std::set<int32_t>& currently_available_evses, const std::set<int32_t>& reserved_evses) {
+    ReservationEvseStatus evse_status_to_send;
+    std::set<int32_t> new_reserved_evses;
+
+    for (const auto evse_id : reserved_evses) {
+        if (this->last_reserved_status.find(evse_id) != this->last_reserved_status.end()) {
+            // Evse was already reserved, don't add it to the new status.
+        } else {
+            evse_status_to_send.reserved.insert(evse_id);
+        }
+    }
+
+    for (const auto evse_id : currently_available_evses) {
+        const bool is_reserved = reserved_evses.find(evse_id) != reserved_evses.end();
+        const bool was_reserved = this->last_reserved_status.find(evse_id) != this->last_reserved_status.end();
+        if (not is_reserved) {
+            if (was_reserved) {
+                evse_status_to_send.available.insert(evse_id);
+            }
+        }
+    }
+
+    new_reserved_evses = reserved_evses;
+    this->last_reserved_status = new_reserved_evses;
+
+    return evse_status_to_send;
+}
+
+void ReservationHandler::print_reservations_debug_info(const types::reservation::Reservation& reservation,
+                                                       const std::optional<uint32_t> evse_id,
+                                                       const bool reservation_failed) {
+    std::string reservation_information;
+    if (reservation_failed) {
+        reservation_information = "Reservation not possible";
+    } else {
+        reservation_information = "New reservation";
+    }
+    EVLOG_debug << reservation_information
+                << ". Evse id: " << (evse_id.has_value() ? std::to_string(evse_id.value()) : "no evse id")
+                << ", connector type: "
+                << (reservation.connector_type.has_value()
+                        ? types::evse_manager::connector_type_enum_to_string(reservation.connector_type.value())
+                        : "no connector type given");
+    std::string evse_info;
+    for (const auto& evse : this->evses) {
+        evse_info += "- " + std::to_string(evse.first) + ":\n";
+        for (const auto& connector : evse.second->connectors) {
+            evse_info += "--- " + std::to_string(connector.id) + " " +
+                         types::evse_manager::connector_type_enum_to_string(connector.type) +
+                         ", available: " + (connector.get_state() == ConnectorState::AVAILABLE ? "yes" : "no") + "\n";
+        }
+    }
+    std::string reservation_info;
+    for (const auto& evse_reservation : this->evse_reservations) {
+        reservation_info +=
+            "- evse " + std::to_string(evse_reservation.first) + ": " +
+            types::evse_manager::connector_type_enum_to_string(
+                evse_reservation.second.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown)) +
+            "\n";
+    }
+
+    for (const auto& reservation : this->global_reservations) {
+        reservation_info += "- global : " +
+                            types::evse_manager::connector_type_enum_to_string(
+                                reservation.connector_type.value_or(types::evse_manager::ConnectorTypeEnum::Unknown)) +
+                            "\n";
+    }
+
+    EVLOG_debug << "Current evse's and states: \n" << evse_info;
+    EVLOG_debug << "Current reservations: \n" << reservation_info;
+}
+
+static types::reservation::ReservationResult
+connector_state_to_reservation_result(const ConnectorState connector_state) {
+    switch (connector_state) {
+    case ConnectorState::AVAILABLE:
+        return types::reservation::ReservationResult::Accepted;
+    case ConnectorState::UNAVAILABLE:
+        return types::reservation::ReservationResult::Unavailable;
+    case ConnectorState::FAULTED:
+    case ConnectorState::UNAVAILABLE_FAULTED:
+    case ConnectorState::FAULTED_OCCUPIED:
+        return types::reservation::ReservationResult::Faulted;
+    case ConnectorState::OCCUPIED:
+        return types::reservation::ReservationResult::Occupied;
+    }
+
+    return types::reservation::ReservationResult::Rejected;
+}
+
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/main/authImpl.cpp

@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include "authImpl.hpp"
+
+#include <everest/logging.hpp>
+#include <utility>
+
+namespace module {
+namespace main {
+
+void authImpl::init() {
+}
+
+void authImpl::ready() {
+}
+
+void authImpl::handle_set_connection_timeout(int& connection_timeout) {
+    this->mod->set_connection_timeout(connection_timeout);
+}
+
+void authImpl::handle_set_master_pass_group_id(std::string& master_pass_group_id) {
+    this->mod->set_master_pass_group_id(master_pass_group_id);
+}
+
+types::authorization::WithdrawAuthorizationResult
+authImpl::handle_withdraw_authorization(WithdrawAuthorizationRequest& request) {
+    return this->mod->handle_withdraw_authorization(request);
+}
+
+} // namespace main
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/main/authImpl.hpp

@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+#ifndef MAIN_AUTH_IMPL_HPP
+#define MAIN_AUTH_IMPL_HPP
+
+//
+// AUTO GENERATED - MARKED REGIONS WILL BE KEPT
+// template version 3
+//
+
+#include <generated/interfaces/auth/Implementation.hpp>
+
+#include "../Auth.hpp"
+
+// ev@75ac1216-19eb-4182-a85c-820f1fc2c091:v1
+// insert your custom include headers here
+// ev@75ac1216-19eb-4182-a85c-820f1fc2c091:v1
+
+namespace module {
+namespace main {
+
+struct Conf {};
+
+class authImpl : public authImplBase {
+public:
+    authImpl() = delete;
+    authImpl(Everest::ModuleAdapter* ev, const Everest::PtrContainer<Auth>& mod, Conf& config) :
+        authImplBase(ev, "main"), mod(mod), config(config){};
+
+    // ev@8ea32d28-373f-4c90-ae5e-b4fcc74e2a61:v1
+    // insert your public definitions here
+    // ev@8ea32d28-373f-4c90-ae5e-b4fcc74e2a61:v1
+
+protected:
+    // command handler functions (virtual)
+    virtual void handle_set_connection_timeout(int& connection_timeout) override;
+    virtual void handle_set_master_pass_group_id(std::string& master_pass_group_id) override;
+    virtual types::authorization::WithdrawAuthorizationResult
+    handle_withdraw_authorization(types::authorization::WithdrawAuthorizationRequest& request) override;
+
+    // ev@d2d1847a-7b88-41dd-ad07-92785f06f5c4:v1
+    // insert your protected definitions here
+    // ev@d2d1847a-7b88-41dd-ad07-92785f06f5c4:v1
+
+private:
+    const Everest::PtrContainer<Auth>& mod;
+    const Conf& config;
+
+    virtual void init() override;
+    virtual void ready() override;
+
+    // ev@3370e4dd-95f4-47a9-aaec-ea76f34a66c9:v1
+    // insert your private definitions here
+    // ev@3370e4dd-95f4-47a9-aaec-ea76f34a66c9:v1
+};
+
+// ev@3d7da0ad-02c2-493d-9920-0bbbd56b9876:v1
+// insert other definitions here
+// ev@3d7da0ad-02c2-493d-9920-0bbbd56b9876:v1
+
+} // namespace main
+} // namespace module
+
+#endif // MAIN_AUTH_IMPL_HPP

tools/EVerest-main/modules/EVSE/Auth/manifest.yaml

@@ -0,0 +1,99 @@
+description: >-
+  This module implements the authentication handling for the EVerest. It is responsible for providing authorization to
+  the connected evse managers. In addition to that, it handles the reservation management.
+config:
+  selection_algorithm:
+    description: >-
+      The selection algorithm contains the logic to select one connector for an incoming token. In case the charging station
+      has only one connector, the selection of a connector is pretty straight-forward because there is only one that is 
+      available. The selection algorithm becomes relevant in case the Auth  module manages authorization requests 
+      for multiple connectors. The following values can be set:
+      PlugEvents: Selection of connector is based on EV Plug In events
+      FindFirst: Simply selects the first available connector that has no active transaction
+      UserInput: Placeholder, not yet implemented
+    type: string
+    default: FindFirst
+  connection_timeout:
+    description: >-
+      Defines how many seconds an authorization is valid before it is discarded.
+      Defines how many seconds a user can provide authorization after the plug in
+      of a car
+    type: integer
+  master_pass_group_id:
+    description: >-
+      IdTokens that have this id as groupId belong to the Master Pass Group. Meaning they can stop any ongoing
+      transaction, but cannot start transactions. This can, for example, be used by law enforcement personal to stop any
+      ongoing transaction when an EV has to be towed away. If left empty, master_pass_group_id is not used.
+    type: string
+    default: ""
+  prioritize_authorization_over_stopping_transaction:
+    description: >-
+      Boolean value to describe the handling of parent id tokens.
+
+      If true, a new token will be preferably used for authorization of a new connector if a connector is available. It
+      will not be used to finish a transaction using its parent_id_token. parent_id_token will only be used to finish
+      transaction if no connector is available for authorization anymore.
+
+      If false, a new token will be used to finish a transaction if the parent_id_token of a present transaction matches
+      the parent_id_token of the provided_token. Authorization to available connectors will only be provided if no
+      transaction can be stopped using the given parent_id_token
+    type: boolean
+    default: true
+  ignore_connector_faults:
+    description: >-
+      Boolean value to describe the handling of faults on connectors.
+
+      If true, faults reported on connectors are ignored, i.e. they can still be authorized. This should be disabled in
+      most use cases, but e.g. in free charging applications it may be useful to allow a charging session in the following case:
+      A connector e.g. has an overtemperature fault that at some point will clear once it is cooled down. A car is plugged in before 
+      the error is cleared. The user would expect that the charging starts once it is cooled down. When this option is set to false, 
+      it will not be authorized on plug in as the connector is in fault state and it will never recover until the car is replugged.
+      If it is set to true, the authorization happens on the faulty connector and charging will start once the fault is cleared.
+
+      If false, faulty connectors are treated as not available and will not be authorized. This is a good setting for e.g. public chargers.
+    type: boolean
+    default: false
+  plug_in_timeout_enabled:
+    description: >-
+      This parameter is only used if the charging station has multiple EVSEs managed by this Auth module.
+
+      Controls the authorization-timeout behavior after a plug-in event. When enabled, an internal timer is started immediately after an EV
+      is detected as plugged in. During the time defined by connection_timeout, the user must present a valid authorization token.
+      
+      If no valid token is received within the specified connection_timeout, the authorization attempt is considered as timed out and a
+      re-plug by the user is required to start a new authorization process.
+      
+      This setting is particularly useful for charging stations with multiple EVSEs and a shared, non-EVSE-specific authorization interface
+      (e.g., a single RFID reader). It prevents authorization tokens from being incorrectly associated with an EVSE where an EV is
+      plugged in but has not been authorized, by ensuring that expired or ambiguous plug-ins are not considered for EVSE assignments
+      for future authorization attempts.
+    type: boolean
+    default: false
+provides:
+  main:
+    description: This implements the auth interface for EVerest
+    interface: auth
+  reservation:
+    description: This implements the reservation interface for EVerest.
+    interface: reservation
+requires:
+  token_provider:
+    interface: auth_token_provider
+    min_connections: 1
+    max_connections: 128
+  token_validator:
+    interface: auth_token_validator
+    min_connections: 1
+    max_connections: 128
+  evse_manager:
+    interface: evse_manager
+    min_connections: 1
+    max_connections: 128
+  kvs:
+    interface: kvs
+    min_connections: 0
+    max_connections: 1
+metadata:
+  license: https://opensource.org/licenses/Apache-2.0
+  authors:
+    - 'Piet Gömpel'

tools/EVerest-main/modules/EVSE/Auth/reservation/reservationImpl.cpp

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include "reservationImpl.hpp"
+
+namespace module {
+namespace reservation {
+
+void reservationImpl::init() {
+}
+
+void reservationImpl::ready() {
+}
+
+types::reservation::ReservationResult reservationImpl::handle_reserve_now(types::reservation::Reservation& request) {
+    // your code for cmd reserve_now goes here
+
+    EVLOG_debug << "Handle reservation for evse id " << (request.evse_id.has_value() ? request.evse_id.value() : -1);
+
+    const auto reservation_result = this->mod->auth_handler->handle_reservation(request);
+    if (reservation_result == ReservationResult::Accepted) {
+        if (!this->mod->auth_handler->call_reserved(request.reservation_id, request.evse_id)) {
+            return ReservationResult::Rejected;
+        }
+    }
+    return reservation_result;
+};
+
+bool reservationImpl::handle_cancel_reservation(int& reservation_id) {
+    const auto reservation_cancelled = this->mod->auth_handler->handle_cancel_reservation(reservation_id);
+    if (reservation_cancelled.first) {
+        // Call reservation cancelled. This comes from outside, so we don't send the status update (otherwise this is
+        // sent to OCPP and that is not according to specification).
+        this->mod->auth_handler->call_reservation_cancelled(reservation_id, ReservationEndReason::Cancelled,
+                                                            reservation_cancelled.second, false);
+        return true;
+    }
+
+    return false;
+}
+
+types::reservation::ReservationCheckStatus
+reservationImpl::handle_exists_reservation(types::reservation::ReservationCheck& request) {
+    return this->mod->auth_handler->handle_reservation_exists(request.id_token, request.evse_id,
+                                                              request.group_id_token);
+};
+
+} // namespace reservation
+} // namespace module

tools/EVerest-main/modules/EVSE/Auth/reservation/reservationImpl.hpp

@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+#ifndef RESERVATION_RESERVATION_IMPL_HPP
+#define RESERVATION_RESERVATION_IMPL_HPP
+
+//
+// AUTO GENERATED - MARKED REGIONS WILL BE KEPT
+// template version 3
+//
+
+#include <generated/interfaces/reservation/Implementation.hpp>
+
+#include "../Auth.hpp"
+
+// ev@75ac1216-19eb-4182-a85c-820f1fc2c091:v1
+// insert your custom include headers here
+// ev@75ac1216-19eb-4182-a85c-820f1fc2c091:v1
+
+namespace module {
+namespace reservation {
+
+struct Conf {};
+
+class reservationImpl : public reservationImplBase {
+public:
+    reservationImpl() = delete;
+    reservationImpl(Everest::ModuleAdapter* ev, const Everest::PtrContainer<Auth>& mod, Conf& config) :
+        reservationImplBase(ev, "reservation"), mod(mod), config(config){};
+
+    // ev@8ea32d28-373f-4c90-ae5e-b4fcc74e2a61:v1
+    // insert your public definitions here
+    // ev@8ea32d28-373f-4c90-ae5e-b4fcc74e2a61:v1
+
+protected:
+    // command handler functions (virtual)
+    virtual types::reservation::ReservationResult handle_reserve_now(types::reservation::Reservation& request) override;
+    virtual bool handle_cancel_reservation(int& reservation_id) override;
+    virtual types::reservation::ReservationCheckStatus
+    handle_exists_reservation(types::reservation::ReservationCheck& request) override;
+
+    // ev@d2d1847a-7b88-41dd-ad07-92785f06f5c4:v1
+    // insert your protected definitions here
+    // ev@d2d1847a-7b88-41dd-ad07-92785f06f5c4:v1
+
+private:
+    const Everest::PtrContainer<Auth>& mod;
+    const Conf& config;
+
+    virtual void init() override;
+    virtual void ready() override;
+
+    // ev@3370e4dd-95f4-47a9-aaec-ea76f34a66c9:v1
+    // insert your private definitions here
+    // ev@3370e4dd-95f4-47a9-aaec-ea76f34a66c9:v1
+};
+
+// ev@3d7da0ad-02c2-493d-9920-0bbbd56b9876:v1
+// insert other definitions here
+// ev@3d7da0ad-02c2-493d-9920-0bbbd56b9876:v1
+
+} // namespace reservation
+} // namespace module
+
+#endif // RESERVATION_RESERVATION_IMPL_HPP

tools/EVerest-main/modules/EVSE/Auth/tests/CMakeLists.txt

@@ -0,0 +1,43 @@
+set(TEST_TARGET_NAME ${PROJECT_NAME}_auth_tests)
+
+set(MODULE_DIR 
+    "${PROJECT_SOURCE_DIR}/modules/EVSE/Auth")
+
+set(TEST_SOURCES ${MODULE_DIR}/lib/ReservationHandler.cpp
+                 ${MODULE_DIR}/lib/AuthHandler.cpp
+                 ${MODULE_DIR}/lib/Connector.cpp
+                 ${MODULE_DIR}/lib/ConnectorStateMachine.cpp)
+
+add_executable(${TEST_TARGET_NAME} auth_tests.cpp reservation_tests.cpp ${TEST_SOURCES})
+
+message("Current source dir: ${CMAKE_CURRENT_SOURCE_DIR}")
+
+set(INCLUDE_DIR 
+    "${CMAKE_CURRENT_SOURCE_DIR}/stubs"
+    "${MODULE_DIR}/include"
+    "${MODULE_DIR}/tests"
+)
+
+get_target_property(GENERATED_INCLUDE_DIR generate_cpp_files EVEREST_GENERATED_INCLUDE_DIR)
+
+target_include_directories(${TEST_TARGET_NAME} PUBLIC
+    ${INCLUDE_DIR}
+    ${GENERATED_INCLUDE_DIR}
+)
+
+target_link_libraries(${TEST_TARGET_NAME} PRIVATE
+    GTest::gmock
+    GTest::gtest_main
+    everest::timer
+    ${CMAKE_DL_LIBS}
+    everest::log
+    everest::framework
+    everest::helpers
+    pthread
+    nlohmann_json::nlohmann_json
+    date::date
+    date::date-tz
+    )
+
+add_test(${TEST_TARGET_NAME} ${TEST_TARGET_NAME})
+ev_register_test_target(${TEST_TARGET_NAME})

tools/EVerest-main/modules/EVSE/Auth/tests/FakeAuthReceiver.hpp

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include <map>
+
+/**
+ * @brief This implementation is only used for testing purposes. It is used to check which EVSE have received
+ * authorization.
+ *
+ */
+class FakeAuthReceiver {
+
+private:
+    std::map<int32_t, bool> evse_index_to_authorization_map;
+
+public:
+    FakeAuthReceiver(){};
+    explicit FakeAuthReceiver(const std::vector<int32_t>& evse_indices) {
+        for (const auto evse_index : evse_indices) {
+            evse_index_to_authorization_map[evse_index] = false;
+        }
+    };
+    void add_evse_index(const int32_t evse_index) {
+        evse_index_to_authorization_map[evse_index] = false;
+    };
+    void authorize(const int32_t evse_index) {
+        evse_index_to_authorization_map[evse_index] = true;
+    };
+    void deauthorize(const int32_t evse_index) {
+        evse_index_to_authorization_map[evse_index] = false;
+    };
+    bool get_authorization(const int32_t evse_index) {
+        return evse_index_to_authorization_map[evse_index];
+    };
+    void reset() {
+        for (auto& e : evse_index_to_authorization_map) {
+            e.second = false;
+        }
+    };
+};

tools/EVerest-main/modules/EVSE/Auth/tests/stubs/generated/interfaces/kvs/Interface.hpp

@@ -0,0 +1,35 @@
+#ifndef KVS_INTERFACE_HPP
+#define KVS_INTERFACE_HPP
+
+#include <iostream>
+#include <string>
+#include <variant>
+
+#include <nlohmann/json.hpp>
+// #include <utils/types.hpp>
+
+using nlohmann::json;
+
+using Array = nlohmann::json::array_t;
+using Object = nlohmann::json::object_t;
+
+class kvsIntf {
+private:
+    std::variant<std::nullptr_t, Array, Object, bool, double, int, std::string> value;
+
+public:
+    kvsIntf() {
+    }
+    void call_store(std::string key,
+                    std::variant<std::nullptr_t, Array, Object, bool, double, int, std::string> value) {
+        std::cout << "Store called!" << std::endl;
+        this->value = value;
+    }
+    std::variant<std::nullptr_t, Array, Object, bool, double, int, std::string> call_load(std::string key) {
+        std::cout << "Load called!" << std::endl;
+
+        return this->value;
+    }
+};
+
+#endif // KVS_INTERFACE_HPP