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// matth-x/ArduinoOcpp
// Copyright Matthias Akstaller 2019 - 2022
// MIT License
#include <ArduinoOcpp/Core/Configuration.h>
#include <ArduinoOcpp/Debug.h>
#include <string.h>
#include <vector>
#include <algorithm>
#include <ArduinoJson.h>
namespace ArduinoOcpp {
std::shared_ptr<FilesystemAdapter> filesystem;
template<class T>
std::shared_ptr<Configuration<T>> createConfiguration(const char *key, T value) {
std::shared_ptr<Configuration<T>> configuration = std::make_shared<Configuration<T>>();
if (!configuration->setKey(key)) {
AO_DBG_ERR("Cannot set key! Abort");
return nullptr;
}
*configuration = value;
return configuration;
}
std::shared_ptr<Configuration<const char *>> createConfiguration(const char *key, const char *value) {
std::shared_ptr<Configuration<const char*>> configuration = std::make_shared<Configuration<const char*>>();
if (!configuration->setKey(key)) {
AO_DBG_ERR("Cannot set key! Abort");
return nullptr;
}
if (!configuration->setValue(value, strlen(value) + 1)) {
AO_DBG_ERR("Cannot set value! Abort");
return nullptr;
}
return configuration;
}
std::unique_ptr<ConfigurationContainer> createConfigurationContainer(const char *filename) {
//create non-persistent Configuration store (i.e. lives only in RAM) if
// - Flash FS usage is switched off OR
// - Filename starts with "/volatile"
if (!filesystem ||
!strncmp(filename, CONFIGURATION_VOLATILE, strlen(CONFIGURATION_VOLATILE))) {
return std::unique_ptr<ConfigurationContainer>(new ConfigurationContainerVolatile(filename));
} else {
//create persistent Configuration store. This is the normal caseS
return std::unique_ptr<ConfigurationContainer>(new ConfigurationContainerFlash(filesystem, filename));
}
}
std::vector<std::shared_ptr<ConfigurationContainer>> configurationContainers;
void addConfigurationContainer(std::shared_ptr<ConfigurationContainer> container) {
configurationContainers.push_back(container);
}
std::vector<std::shared_ptr<ConfigurationContainer>>::iterator getConfigurationContainersBegin() {
return configurationContainers.begin();
}
std::vector<std::shared_ptr<ConfigurationContainer>>::iterator getConfigurationContainersEnd() {
return configurationContainers.end();
}
std::shared_ptr<ConfigurationContainer> getContainer(const char *filename) {
std::vector<std::shared_ptr<ConfigurationContainer>>::iterator container = std::find_if(configurationContainers.begin(), configurationContainers.end(),
[filename](std::shared_ptr<ConfigurationContainer> &elem) {
return !strcmp(elem->getFilename(), filename);
});
if (container != configurationContainers.end()) {
return *container;
} else {
return nullptr;
}
}
template<class T>
std::shared_ptr<Configuration<T>> declareConfiguration(const char *key, T defaultValue, const char *filename, bool remotePeerCanWrite, bool remotePeerCanRead, bool localClientCanWrite, bool rebootRequiredWhenChanged) {
//already existent? --> stored in last session --> do set default content, but set writepermission flag
std::shared_ptr<ConfigurationContainer> container = getContainer(filename);
if (!container) {
AO_DBG_INFO("init new configurations container: %s", filename);
container = createConfigurationContainer(filename);
configurationContainers.push_back(container);
if (!container->load()) {
AO_DBG_WARN("Cannot load file contents. Path will be overwritten");
}
}
std::shared_ptr<AbstractConfiguration> configuration = container->getConfiguration(key);
if (configuration && strcmp(configuration->getSerializedType(), SerializedType<T>::get())) {
AO_DBG_ERR("conflicting declared types. Discard old config");
container->removeConfiguration(configuration);
configuration = nullptr;
}
std::shared_ptr<Configuration<T>> configurationConcrete = std::static_pointer_cast<Configuration<T>>(configuration);
if (!configurationConcrete) {
configurationConcrete = createConfiguration<T>(key, defaultValue);
configuration = std::static_pointer_cast<AbstractConfiguration>(configurationConcrete);
if (!configuration) {
AO_DBG_ERR("Cannot find configuration stored from previous session and cannot create new one! Abort");
return nullptr;
}
container->addConfiguration(configuration);
}
if (!remotePeerCanWrite)
configuration->revokePermissionRemotePeerCanWrite();
if (!remotePeerCanRead)
configuration->revokePermissionRemotePeerCanRead();
if (!localClientCanWrite)
configuration->revokePermissionLocalClientCanWrite();
if (rebootRequiredWhenChanged)
configuration->requireRebootWhenChanged();
return configurationConcrete;
}
namespace Ocpp16 {
std::shared_ptr<AbstractConfiguration> getConfiguration(const char *key) {
std::shared_ptr<AbstractConfiguration> result = nullptr;
for (auto container = configurationContainers.begin(); container != configurationContainers.end(); container++) {
result = (*container)->getConfiguration(key);
if (result)
return result;
}
return nullptr;
}
std::unique_ptr<std::vector<std::shared_ptr<AbstractConfiguration>>> getAllConfigurations() { //TODO maybe change to iterator?
auto result = std::unique_ptr<std::vector<std::shared_ptr<AbstractConfiguration>>>(
new std::vector<std::shared_ptr<AbstractConfiguration>>()
);
for (auto container = configurationContainers.begin(); container != configurationContainers.end(); container++) {
for (auto config = (*container)->configurationsIteratorBegin(); config != (*container)->configurationsIteratorEnd(); config++) {
if ((*config)->permissionRemotePeerCanRead()) {
result->push_back(*config);
}
}
}
return result;
}
} //end namespace Ocpp16
bool configuration_inited = false;
bool configuration_init(std::shared_ptr<FilesystemAdapter> _filesystem) {
if (configuration_inited)
return true; //configuration_init() already called; tolerate multiple calls so user can use this store for
//credentials outside ArduinoOcpp which need to be loaded before OCPP_initialize()
filesystem = _filesystem;
if (!filesystem) {
configuration_inited = true;
return true; //no filesystem, nothing can go wrong
}
std::shared_ptr<ConfigurationContainer> containerDefault = nullptr;
for (auto container = configurationContainers.begin(); container != configurationContainers.end(); container++) {
if (!strcmp((*container)->getFilename(), CONFIGURATION_FN)) {
containerDefault = (*container);
break;
}
}
bool success = true;
if (containerDefault) {
AO_DBG_DEBUG("Found default container before calling configuration_init(). If you added");
AO_DBG_DEBUG(" > the container manually, please ensure to call load(). If not, it is a hint");
AO_DBG_DEBUG(" > that declareConfiguration() was called too early");
(void)0;
} else {
containerDefault = createConfigurationContainer(CONFIGURATION_FN);
if (!containerDefault->load()) {
AO_DBG_ERR("Loading default configurations file failed");
success = false;
}
configurationContainers.push_back(containerDefault);
}
configuration_inited = success;
return success;
}
bool configuration_save() {
bool success = true;
for (auto container = configurationContainers.begin(); container != configurationContainers.end(); container++) {
if (!(*container)->save()) {
success = false;
}
}
return success;
}
template std::shared_ptr<Configuration<int>> createConfiguration(const char *key, int value);
template std::shared_ptr<Configuration<float>> createConfiguration(const char *key, float value);
template std::shared_ptr<Configuration<bool>> createConfiguration(const char *key, bool value);
template std::shared_ptr<Configuration<const char *>> createConfiguration(const char *key, const char * value);
template std::shared_ptr<Configuration<int>> declareConfiguration(const char *key, int defaultValue, const char *filename, bool remotePeerCanWrite, bool remotePeerCanRead, bool localClientCanWrite, bool rebootRequiredWhenChanged);
template std::shared_ptr<Configuration<float>> declareConfiguration(const char *key, float defaultValue, const char *filename, bool remotePeerCanWrite, bool remotePeerCanRead, bool localClientCanWrite, bool rebootRequiredWhenChanged);
template std::shared_ptr<Configuration<bool>> declareConfiguration(const char *key, bool defaultValue, const char *filename, bool remotePeerCanWrite, bool remotePeerCanRead, bool localClientCanWrite, bool rebootRequiredWhenChanged);
template std::shared_ptr<Configuration<const char *>> declareConfiguration(const char *key, const char *defaultValue, const char *filename, bool remotePeerCanWrite, bool remotePeerCanRead, bool localClientCanWrite, bool rebootRequiredWhenChanged);
} //end namespace ArduinoOcpp