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ConfigManager.cpp
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1540 lines (1416 loc) · 65.6 KB
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#include "ConfigManager.hpp"
#include "MbedtlsHelpers.hpp"
#include "cJSON.h"
#include "config.hpp"
#include <ranges>
#include <string>
#include <vector>
#include <limits>
#include "esp_log.h"
#include "fmt/ranges.h"
#include "mbedtls/sha256.h"
#include "mbedtls/x509.h"
#include "msgpack.h"
#include <LittleFS.h>
#include "fmt/format.h"
#include "nvs.h"
#include <mbedtls/entropy.h>
#include <mbedtls/ctr_drbg.h>
#include <mbedtls/x509_crt.h>
#include <mbedtls/pk.h>
#include <mbedtls/error.h>
const char* ConfigManager::TAG = "ConfigManager";
using crypto::ScopedEntropy;
using crypto::ScopedCtrDrbg;
using crypto::ScopedPk;
using crypto::ScopedX509Crt;
/**
* @brief Initialize ConfigManager and build the configuration key-to-field map.
*
* Constructs a ConfigManager instance, marks it uninitialized, and populates
* the internal m_configMap with mappings from configuration keys (for the
* "mqtt" and "misc" sections) to pointers of their corresponding in-memory
* fields. The map enables unified serialization/deserialization and JSON
* handling for both MQTT and miscellaneous settings.
*/
ConfigManager::ConfigManager() : m_isInitialized(false) {
m_configMap = {
{"mqtt",{
// MQTT Config
{"mqttBroker", &m_mqttConfig.mqttBroker},
{"mqttPort", &m_mqttConfig.mqttPort},
{"mqttClientId", &m_mqttConfig.mqttClientId},
{"mqttUsername", &m_mqttConfig.mqttUsername},
{"mqttPassword", &m_mqttConfig.mqttPassword},
{"hassMqttDiscoveryEnabled",
&m_mqttConfig.hassMqttDiscoveryEnabled},
{"lwtTopic", &m_mqttConfig.lwtTopic},
{"hkTopic", &m_mqttConfig.hkTopic},
{"lockStateTopic", &m_mqttConfig.lockStateTopic},
{"lockStateCmd", &m_mqttConfig.lockStateCmd},
{"lockCStateCmd", &m_mqttConfig.lockCStateCmd},
{"lockTStateCmd", &m_mqttConfig.lockTStateCmd},
{"btrLvlCmdTopic", &m_mqttConfig.btrLvlCmdTopic},
{"hkAltActionTopic", &m_mqttConfig.hkAltActionTopic},
{"lockCustomStateTopic", &m_mqttConfig.lockCustomStateTopic},
{"lockCustomStateCmd", &m_mqttConfig.lockCustomStateCmd},
{"lockEnableCustomState", &m_mqttConfig.lockEnableCustomState},
{"nfcTagNoPublish", &m_mqttConfig.nfcTagNoPublish},
{"useSSL", &m_mqttConfig.useSSL},
{"allowInsecure", &m_mqttConfig.allowInsecure},
{"customLockStates", &m_mqttConfig.customLockStates},
{"customLockActions", &m_mqttConfig.customLockActions}
}
},
{
"ssl", {
{"caCert", &m_mqttSslConfig.caCert},
{"clientCert", &m_mqttSslConfig.clientCert},
{"clientKey", &m_mqttSslConfig.clientKey},
}
},
{
"https", {
{"serverCert", &m_httpsCertsConfig.serverCert},
{"privateKey", &m_httpsCertsConfig.privateKey},
{"caCert", &m_httpsCertsConfig.caCert},
}
},
{"misc",{
// Miscellaneous Config
{"deviceName", &m_miscConfig.deviceName},
{"otaPasswd", &m_miscConfig.otaPasswd},
{"hk_key_color", &m_miscConfig.hk_key_color},
{"setupCode", &m_miscConfig.setupCode},
{"lockAlwaysUnlock", &m_miscConfig.lockAlwaysUnlock},
{"lockAlwaysLock", &m_miscConfig.lockAlwaysLock},
{"hkAuthPrecomputeEnabled", &m_miscConfig.hkAuthPrecomputeEnabled},
{"nfcFastPollingEnabled", &m_miscConfig.nfcFastPollingEnabled},
{"controlPin", &m_miscConfig.controlPin},
{"hsStatusPin", &m_miscConfig.hsStatusPin},
{"webAuthEnabled", &m_miscConfig.webAuthEnabled},
{"webUsername", &m_miscConfig.webUsername},
{"webPassword", &m_miscConfig.webPassword},
{"webHttpsEnabled", &m_miscConfig.webHttpsEnabled},
{"nfcGpioPins", &m_miscConfig.nfcGpioPins},
{"nfcPinsPreset", &m_miscConfig.nfcPinsPreset},
{"btrLowStatusThreshold", &m_miscConfig.btrLowStatusThreshold},
{"proxBatEnabled", &m_miscConfig.proxBatEnabled},
{"ethernetEnabled", &m_miscConfig.ethernetEnabled},
{"ethActivePreset", &m_miscConfig.ethActivePreset},
{"ethPhyType", &m_miscConfig.ethPhyType},
{"ethSpiBus", &m_miscConfig.ethSpiBus},
{"ethRmiiConfig", &m_miscConfig.ethRmiiConfig},
{"ethSpiConfig", &m_miscConfig.ethSpiConfig},
{"logLevel", &m_miscConfig.logLevel}
}
},
{
"actions", {
{"nfcNeopixelPin", &m_actionsConfig.nfcNeopixelPin},
{"neoPixelType", &m_actionsConfig.neoPixelType},
{"neopixelSuccessColor", &m_actionsConfig.neopixelSuccessColor},
{"neopixelFailureColor", &m_actionsConfig.neopixelFailureColor},
{"neopixelSuccessTime", &m_actionsConfig.neopixelSuccessTime},
{"neopixelFailTime", &m_actionsConfig.neopixelFailTime},
{"neopixelTagEventTime", &m_actionsConfig.neopixelTagEventTime},
{"neopixelTagEventColor", &m_actionsConfig.neopixelTagEventColor},
{"nfcSuccessPin", &m_actionsConfig.nfcSuccessPin},
{"nfcSuccessTime", &m_actionsConfig.nfcSuccessTime},
{"nfcSuccessHL", &m_actionsConfig.nfcSuccessHL},
{"nfcFailPin", &m_actionsConfig.nfcFailPin},
{"nfcFailTime", &m_actionsConfig.nfcFailTime},
{"nfcFailHL", &m_actionsConfig.nfcFailHL},
{"tagEventPin", &m_actionsConfig.tagEventPin},
{"tagEventTimeout", &m_actionsConfig.tagEventTimeout},
{"tagEventHL", &m_actionsConfig.tagEventHL},
{"gpioActionPin", &m_actionsConfig.gpioActionPin},
{"gpioActionLockState", &m_actionsConfig.gpioActionLockState},
{"gpioActionUnlockState", &m_actionsConfig.gpioActionUnlockState},
{"gpioActionMomentaryEnabled", &m_actionsConfig.gpioActionMomentaryEnabled},
{"hkGpioControlledState", &m_actionsConfig.hkGpioControlledState},
{"gpioActionMomentaryTimeout", &m_actionsConfig.gpioActionMomentaryTimeout},
{"hkDumbSwitchMode", &m_actionsConfig.hkDumbSwitchMode},
{"hkAltActionPin", &m_actionsConfig.hkAltActionPin},
{"hkAltActionTimeout", &m_actionsConfig.hkAltActionTimeout},
{"hkAltActionGpioState", &m_actionsConfig.hkAltActionGpioState},
{"hkAltActionInitPin", &m_actionsConfig.hkAltActionInitPin},
{"hkAltActionInitLedPin", &m_actionsConfig.hkAltActionInitLedPin},
{"hkAltActionInitTimeout", &m_actionsConfig.hkAltActionInitTimeout},
}
}
};
}
/**
* @brief Releases resources held by ConfigManager.
*
* Closes the open NVS handle if the manager was initialized.
*/
ConfigManager::~ConfigManager() {
if (m_isInitialized) {
nvs_close(m_nvsHandle);
m_isInitialized = false;
m_nvsHandle = 0; // Invalidate handle
}
}
/**
* @brief Initialize the NVS-backed configuration subsystem and load saved MQTT and miscellaneous settings.
*
* This opens the NVS namespace used for saved configuration, sets the internal initialized state,
* and loads configuration blobs for "MQTTDATA" and "MISCDATA" into memory.
*
* @return true if initialization succeeded or was already performed, false if opening the NVS handle failed.
*/
bool ConfigManager::begin() {
if (m_isInitialized) {
ESP_LOGW(TAG, "ConfigManager already initialized.");
return true;
}
ESP_LOGI(TAG, "Initializing...");
esp_err_t err = nvs_open("SAVED_DATA", NVS_READWRITE, &m_nvsHandle);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Error (%s) opening NVS handle!", esp_err_to_name(err));
return false;
}
nvs_stats_t nvs_stats;
nvs_get_stats(NULL, &nvs_stats);
ESP_LOGI(TAG,"Count: UsedEntries = (%lu), FreeEntries = (%lu), AvailableEntries = (%lu), AllEntries = (%lu)\n",
nvs_stats.used_entries, nvs_stats.free_entries, nvs_stats.available_entries, nvs_stats.total_entries);
m_isInitialized = true;
ESP_LOGI(TAG, "Loading configurations from NVS...");
loadConfigFromNvs("MQTTDATA");
loadConfigFromNvs("MQTTSSLDATA");
loadConfigFromNvs("MISCDATA");
loadConfigFromNvs("HTTPSDATA");
ESP_LOGI(TAG, "Initialization complete.");
return true;
}
template <typename ConfigType>
/**
* @brief Access the stored configuration corresponding to the requested ConfigType.
*
* Returns a reference to the internal configuration instance for the specified
* template type.
*
* @tparam ConfigType The configuration struct type to retrieve. Supported values:
* `espConfig::mqttConfig_t` or `espConfig::misc_config_t`.
* @return const ConfigType& Reference to the matching in-memory configuration:
* the MQTT configuration when `ConfigType` is
* `espConfig::mqttConfig_t`, or the miscellaneous
* configuration when `ConfigType` is
* `espConfig::misc_config_t`.
*/
const ConfigType& ConfigManager::getConfig() const {
using NonConstConfigType = std::remove_const_t<ConfigType>;
if constexpr (std::is_same_v<NonConstConfigType, espConfig::mqttConfig_t>) {
return m_mqttConfig;
} else if constexpr (std::is_same_v<NonConstConfigType, espConfig::misc_config_t>) {
return m_miscConfig;
} else if constexpr (std::is_same_v<NonConstConfigType, espConfig::actions_config_t>) {
return m_actionsConfig;
}else {
static_assert(std::is_void_v<ConfigType> && false, "Unsupported ConfigType for getConfig");
}
}
template const espConfig::mqttConfig_t& ConfigManager::getConfig<espConfig::mqttConfig_t>() const;
template const espConfig::mqttConfig_t& ConfigManager::getConfig<espConfig::mqttConfig_t const>() const;
template const espConfig::misc_config_t& ConfigManager::getConfig<espConfig::misc_config_t>() const;
template const espConfig::misc_config_t& ConfigManager::getConfig<espConfig::misc_config_t const>() const;
template const espConfig::actions_config_t& ConfigManager::getConfig<espConfig::actions_config_t>() const;
template const espConfig::actions_config_t& ConfigManager::getConfig<espConfig::actions_config_t const>() const;
template <typename ConfigType>
/**
* @brief Clears the in-memory configuration for the specified config type and removes its persisted NVS blob.
*
* The function resets the matching member configuration to its default/empty state and attempts to erase
* the corresponding NVS entry ("MQTTDATA" for MQTT config, "MISCDATA" for misc config).
*
* @returns `true` if the NVS key was erased successfully, `false` otherwise.
*
* @note Instantiating this template with an unsupported `ConfigType` produces a compile-time error.
*/
bool ConfigManager::deleteConfig() {
if (!m_isInitialized) {
ESP_LOGE(TAG, "Cannot delete config, NVS not initialized.");
return false;
}
if constexpr (std::is_same_v<ConfigType, espConfig::mqttConfig_t>){
m_mqttConfig = {};
esp_err_t err_mqtt = nvs_erase_key(m_nvsHandle, "MQTTDATA");
esp_err_t err_ssl = nvs_erase_key(m_nvsHandle, "MQTTSSLDATA");
bool mqtt_ok = (err_mqtt == ESP_OK || err_mqtt == ESP_ERR_NVS_NOT_FOUND);
bool ssl_ok = (err_ssl == ESP_OK || err_ssl == ESP_ERR_NVS_NOT_FOUND);
if (!mqtt_ok) {
ESP_LOGE(TAG, "Failed to erase MQTTDATA: %s", esp_err_to_name(err_mqtt));
}
if (!ssl_ok) {
ESP_LOGE(TAG, "Failed to erase MQTTSSLDATA: %s", esp_err_to_name(err_ssl));
}
if (mqtt_ok && ssl_ok) {
esp_err_t commit_err = nvs_commit(m_nvsHandle);
if (commit_err == ESP_OK) {
return true;
}
ESP_LOGE(TAG, "Failed to commit deleteConfig: %s", esp_err_to_name(commit_err));
return false;
}
return false;
} else if constexpr(std::is_same_v<ConfigType, espConfig::misc_config_t>){
m_miscConfig = {};
return saveConfig<espConfig::misc_config_t>();
} else if constexpr(std::is_same_v<ConfigType, espConfig::actions_config_t>){
m_actionsConfig = {};
return saveConfig<espConfig::actions_config_t>();
} else if constexpr(std::is_same_v<ConfigType, espConfig::https_certs_t>){
m_httpsCertsConfig = {};
esp_err_t err = nvs_erase_key(m_nvsHandle, "HTTPSDATA");
if (err == ESP_OK || err == ESP_ERR_NVS_NOT_FOUND) {
esp_err_t commit_err = nvs_commit(m_nvsHandle);
return commit_err == ESP_OK;
}
ESP_LOGE(TAG, "Failed to erase HTTPSDATA: %s", esp_err_to_name(err));
return false;
} else {
static_assert(std::is_void_v<ConfigType> && false, "Unsupported ConfigType for deleteConfig");
}
return false;
}
template bool ConfigManager::deleteConfig<espConfig::mqttConfig_t>();
template bool ConfigManager::deleteConfig<espConfig::misc_config_t>();
template <typename ConfigType>
/**
* @brief Saves the selected configuration group to non-volatile storage (NVS).
*
* Chooses the NVS blob key based on the config type and attempts to write and commit the serialized data.
*
* @returns `true` if the configuration was written and committed to NVS, `false` otherwise.
*/
bool ConfigManager::saveConfig() {
std::string key;
if constexpr (std::is_same_v<ConfigType, espConfig::mqttConfig_t>){
key = "MQTTDATA";
} else if constexpr (std::is_same_v<ConfigType, espConfig::mqtt_ssl_t>){
key = "MQTTSSLDATA";
} else if constexpr(std::is_same_v<ConfigType, espConfig::misc_config_t> || std::is_same_v<ConfigType, espConfig::actions_config_t>){
key = "MISCDATA";
} else if constexpr(std::is_same_v<ConfigType, espConfig::https_certs_t>){
key = "HTTPSDATA";
} else {
static_assert(std::is_void_v<ConfigType> && false, "Unsupported ConfigType for saveConfig");
}
ESP_LOGI(TAG, "Attempting to save '%s' configuration...", key.c_str());
if (saveConfigToNvs(key.c_str())) {
ESP_LOGI(TAG, "'%s' successfully saved and updated.", key.c_str());
return true;
}
ESP_LOGE(TAG, "Failed to save '%s' configuration.", key.c_str());
return false;
}
template bool ConfigManager::saveConfig<espConfig::mqttConfig_t>();
template bool ConfigManager::saveConfig<espConfig::misc_config_t>();
template bool ConfigManager::saveConfig<espConfig::actions_config_t>();
/**
* @brief Loads and applies a configuration blob from NVS into the in-memory config.
*
* Attempts to read a MessagePack blob stored under the given NVS key and, if present
* and valid, deserializes it into the corresponding in-memory configuration (either
* the MQTT or misc config). If the key is absent, the blob is empty, or parsing fails,
* the in-memory configuration is left unchanged (defaults remain).
*
* @param key NVS blob key to load; valid values are "MQTTDATA" (loads MQTT config)
* and "MISCDATA" (loads misc config).
*/
void ConfigManager::loadConfigFromNvs(const char *key) {
if (!m_isInitialized) {
ESP_LOGE(TAG, "Cannot load, NVS not initialized.");
return;
}
size_t required_size = 0;
esp_err_t err = nvs_get_blob(m_nvsHandle, key, NULL, &required_size);
if (err == ESP_ERR_NVS_NOT_FOUND) {
ESP_LOGI(TAG, "Config key '%s' not found in NVS. Using default values.",
key);
return;
} else if (err != ESP_OK) {
ESP_LOGE(TAG, "Error (%s) getting blob size for key '%s'",
esp_err_to_name(err), key);
return;
}
if (required_size == 0) {
ESP_LOGW(TAG, "Key '%s' found but size is 0. Using defaults.", key);
return;
}
// Validate size to prevent heap exhaustion on ESP32
const size_t MAX_CONFIG_SIZE = 8192; // 8KB max config size
if (required_size > MAX_CONFIG_SIZE) {
ESP_LOGE(TAG, "Config size too large for key '%s': %zu bytes (max: %zu)",
key, required_size, MAX_CONFIG_SIZE);
return;
}
std::vector<uint8_t> buffer(required_size);
err = nvs_get_blob(m_nvsHandle, key, buffer.data(), &required_size);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Error (%s) reading blob for key '%s'", esp_err_to_name(err),
key);
return;
}
msgpack_unpacked unpacked;
msgpack_unpacked_init(&unpacked);
// RAII guard to ensure cleanup on all code paths
struct UnpackedGuard {
msgpack_unpacked* ptr;
~UnpackedGuard() { if(ptr) msgpack_unpacked_destroy(ptr); }
} guard{&unpacked};
bool success = msgpack_unpack((const char*)buffer.data(), buffer.size(), NULL, unpacked.zone, &unpacked.data);
if(success) {
msgpack_object obj = unpacked.data;
if(!strcmp(key, "MQTTDATA")){
deserialize(obj, "mqtt");
} else if(!strcmp(key, "MQTTSSLDATA")){
deserialize(obj, "ssl");
} else if(!strcmp(key, "MISCDATA")){
deserialize(obj, "misc");
deserialize(obj, "actions");
} else if(!strcmp(key, "HTTPSDATA")){
deserialize(obj, "https");
} else {ESP_LOGE(TAG, "Key '%s' not valid", key);return;}
} else {
ESP_LOGE(TAG, "Failed to parse msgpack for key '%s'. Using defaults.", key);
}
}
/**
* @brief Persist the specified configuration group into NVS under the given key.
*
* Writes a MessagePack-serialized blob for the configuration identified by `key`
* ("MISCDATA" or "MQTTDATA") into the opened NVS namespace and commits the change.
*
* @param key NVS blob key that identifies which configuration to save ("MISCDATA" or "MQTTDATA").
* @return bool `true` if the blob was written and NVS commit succeeded, `false` otherwise (including when NVS is not initialized or on write/commit errors).
*/
bool ConfigManager::saveConfigToNvs(const char *key) {
if (!m_isInitialized) {
ESP_LOGE(TAG, "Cannot save, NVS not initialized.");
return false;
}
std::vector<uint8_t> buf;
if (!strcmp(key, "MISCDATA")){
buf = serialize<espConfig::misc_config_t>();
} else if (!strcmp(key, "MQTTSSLDATA")){
buf = serialize<espConfig::mqtt_ssl_t>();
} else if (!strcmp(key, "MQTTDATA")){
buf = serialize<espConfig::mqttConfig_t>();
} else if (!strcmp(key, "HTTPSDATA")){
buf = serialize<espConfig::https_certs_t>();
}
esp_err_t set_err = nvs_set_blob(m_nvsHandle, key, buf.data(), buf.size());
if (set_err != ESP_OK) {
ESP_LOGE(TAG, "Failed to set blob in NVS for key '%s': %s", key,
esp_err_to_name(set_err));
return false;
}
esp_err_t commit_err = nvs_commit(m_nvsHandle);
if (commit_err != ESP_OK) {
ESP_LOGE(TAG, "Failed to commit NVS changes for key '%s': %s", key,
esp_err_to_name(commit_err));
return false;
}
return true;
}
/**
* @brief Populates in-memory configuration fields from a MessagePack map.
*
* Deserializes a MessagePack map object into the ConfigManager's in-memory configuration
* entries identified by the provided section name (`type`). For each string key found
* in the MessagePack map that exists in the internal `m_configMap[type]`, the matching
* in-memory field is updated. Supported value types:
* - string -> std::string
* - boolean -> bool
* - positive integer -> uint8_t / uint16_t
* - array of integers -> std::array<uint8_t, N> (N = 4, 5, 7)
* - array of [enum, value] pairs -> std::map<espConfig::misc_config_t::colorMap, uint8_t>
* - array of [string, value] pairs -> std::map<std::string, uint8_t>
*
* Unknown keys are ignored. If `obj` is not a MessagePack map, an error is logged and
* no assignments are performed.
*
* @param obj MessagePack object expected to be a map of configuration keys to values.
* @param type Configuration section name (e.g., "mqtt" or "misc") used to look up the
* corresponding key → field mapping in `m_configMap`.
*/
void ConfigManager::deserialize(msgpack_object obj, std::string type) {
if (obj.type == MSGPACK_OBJECT_MAP) {
msgpack_object_kv *map = obj.via.map.ptr;
msgpack_object_kv *const end = obj.via.map.ptr + obj.via.map.size;
std::span range(map, end);
for (auto v : range) {
if (v.key.type == MSGPACK_OBJECT_STR) {
std::string key(v.key.via.str.ptr, v.key.via.str.size);
if (!m_configMap.contains(type) || !m_configMap[type].contains(key))
continue;
std::visit([&](auto&& arg) {
using T = std::decay_t<decltype(arg)>;
if constexpr (std::is_pointer_v<T>) {
using PointeeType = std::remove_pointer_t<T>;
switch (v.val.type) {
case MSGPACK_OBJECT_STR: {
if constexpr (std::is_same_v<PointeeType, std::string>) {
arg->assign(std::string(v.val.via.str.ptr, v.val.via.str.size));
}
break;
}
case MSGPACK_OBJECT_BOOLEAN: {
if constexpr (std::is_same_v<PointeeType, bool>) {
*arg = v.val.via.boolean;
}
break;
}
case MSGPACK_OBJECT_POSITIVE_INTEGER: {
if constexpr (std::is_same_v<PointeeType, uint8_t> || std::is_same_v<PointeeType, uint16_t>) {
if (v.val.via.u64 > std::numeric_limits<PointeeType>::max()) {
ESP_LOGW(TAG, "Value overflow for '%s': %llu exceeds max %u",
key.c_str(), v.val.via.u64, std::numeric_limits<PointeeType>::max());
break;
}
*arg = static_cast<PointeeType>(v.val.via.u64);
}
break;
}
case MSGPACK_OBJECT_ARRAY: {
auto msgpack_elements = std::ranges::subrange(v.val.via.array.ptr, v.val.via.array.ptr + v.val.via.array.size);
auto integer_view = msgpack_elements | std::ranges::views::transform([](const msgpack_object& o){return o.via.u64;});
if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 4>>) {
if (msgpack_elements.size() != 4) {
ESP_LOGW(TAG, "Validation failed for '%s': array size is not 4.", key.c_str());
break;
}
std::ranges::copy(integer_view, arg->begin());
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 5>>) {
if (msgpack_elements.size() != 5) {
ESP_LOGW(TAG, "Validation failed for '%s': array size is not 5.", key.c_str());
break;
}
std::ranges::copy(integer_view, arg->begin());
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 7>>) {
if (msgpack_elements.size() != 7) {
ESP_LOGW(TAG, "Validation failed for '%s': array size is not 7.", key.c_str());
break;
}
std::ranges::copy(integer_view, arg->begin());
} else if constexpr (std::is_same_v<PointeeType, std::map<espConfig::actions_config_t::colorMap, uint8_t>>) {
std::ranges::for_each(msgpack_elements, [&](const msgpack_object& o) {
if (o.type == MSGPACK_OBJECT_ARRAY && o.via.array.size == 2) {
const msgpack_object* inner_array_ptr = o.via.array.ptr;
uint8_t key_val = inner_array_ptr[0].via.u64;
uint8_t value_val = inner_array_ptr[1].via.u64;
(*arg)[static_cast<espConfig::actions_config_t::colorMap>(key_val)] = static_cast<uint8_t>(value_val);
}
});
} else if constexpr (std::is_same_v<PointeeType, std::map<std::string, uint8_t>>) {
std::ranges::for_each(msgpack_elements, [&](const msgpack_object& o) {
if (o.type == MSGPACK_OBJECT_ARRAY && o.via.array.size >= 2) {
const msgpack_object* inner_array_ptr = o.via.array.ptr;
std::string key_str(inner_array_ptr[0].via.str.ptr, inner_array_ptr[0].via.str.size);
uint64_t value_val = inner_array_ptr[1].via.u64;
(*arg)[key_str] = static_cast<uint8_t>(value_val);
}
});
}
break;
}
case MSGPACK_OBJECT_MAP: {
if constexpr (std::is_same_v<PointeeType, std::map<std::string, uint8_t>>) {
arg->clear();
msgpack_object_kv *sub_map = v.val.via.map.ptr;
msgpack_object_kv *const sub_end = v.val.via.map.ptr + v.val.via.map.size;
for (; sub_map != sub_end; ++sub_map) {
if (sub_map->key.type == MSGPACK_OBJECT_STR && sub_map->val.type == MSGPACK_OBJECT_POSITIVE_INTEGER) {
std::string sub_key(sub_map->key.via.str.ptr, sub_map->key.via.str.size);
uint8_t sub_value = static_cast<uint8_t>(sub_map->val.via.u64);
arg->emplace(sub_key, sub_value);
}
}
}
break;
}
default:
ESP_LOGW(TAG, "DON'T KNOW THIS ONE! - %s (%d) = %d", key.c_str(), v.val.type, v.val.via.u64);
}
}
}, m_configMap[type][key]);
}
}
} else {
ESP_LOGE(TAG, "Error: Expected a MessagePack map object for deserialization.");
}
}
template <typename ConfigType>
/**
* @brief Serializes the selected configuration type into a MessagePack binary blob.
*
* Produces a MessagePack representation of the in-memory configuration for either the misc or mqtt config type,
* encoding strings, booleans, unsigned integers, fixed-size byte arrays, and map entries. Map entries are encoded
* as arrays of key/value pairs; enum-keyed color maps are encoded as [enum, value] pairs and string-keyed maps as
* [string, value] pairs.
*
* @return std::vector<uint8_t> Byte vector containing the MessagePack-encoded configuration.
*/
std::vector<uint8_t> ConfigManager::serialize() {
msgpack_sbuffer sbuf;
msgpack_sbuffer_init(&sbuf);
msgpack_packer pk;
msgpack_packer_init(&pk, &sbuf, msgpack_sbuffer_write);
ConfigMapType configMap;
if constexpr (std::is_same_v<espConfig::misc_config_t, ConfigType>){
configMap = m_configMap["misc"];
configMap.insert(m_configMap["actions"].begin(), m_configMap["actions"].end());
} else if constexpr (std::is_same_v<espConfig::actions_config_t, ConfigType>){
configMap = m_configMap["actions"];
configMap.insert(m_configMap["misc"].begin(), m_configMap["misc"].end());
} else if constexpr (std::is_same_v<espConfig::mqtt_ssl_t, ConfigType>){
configMap = m_configMap["ssl"];
} else if constexpr (std::is_same_v<espConfig::mqttConfig_t, ConfigType>){
configMap = m_configMap["mqtt"];
} else if constexpr (std::is_same_v<espConfig::https_certs_t, ConfigType>){
configMap = m_configMap["https"];
}
msgpack_pack_map(&pk, configMap.size()); // Pack the map size
for (const auto &pair : configMap) {
msgpack_pack_str(&pk, pair.first.size()); // Pack the key (string) size
msgpack_pack_str_body(&pk, pair.first.data(), pair.first.size()); // Pack the key (string) body
std::visit([&](auto&& arg) {
using T = std::decay_t<decltype(arg)>;
if constexpr (std::is_pointer_v<T>) {
using PointeeType = std::remove_pointer_t<T>;
if constexpr (std::is_same_v<PointeeType, std::string>) {
msgpack_pack_str(&pk, arg->size());
msgpack_pack_str_body(&pk, arg->data(), arg->size());
} else if constexpr (std::is_same_v<PointeeType, bool>) {
if (*arg) {
msgpack_pack_true(&pk);
} else {
msgpack_pack_false(&pk);
}
} else if constexpr (std::is_same_v<PointeeType, uint8_t>) {
msgpack_pack_unsigned_char(&pk, *arg);
} else if constexpr (std::is_same_v<PointeeType, uint16_t>) {
msgpack_pack_unsigned_short(&pk, *arg);
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 4>>) {
msgpack_pack_array(&pk, arg->size());
for (const auto& val : *arg) {
msgpack_pack_unsigned_char(&pk, val);
}
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 5>>) {
msgpack_pack_array(&pk, arg->size());
for (const auto& val : *arg) {
msgpack_pack_unsigned_char(&pk, val);
}
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 7>>) {
msgpack_pack_array(&pk, arg->size());
for (const auto& val : *arg) {
msgpack_pack_unsigned_char(&pk, val);
}
} else if constexpr (std::is_same_v<PointeeType, std::map<espConfig::actions_config_t::colorMap, uint8_t>>) {
msgpack_pack_array(&pk, arg->size());
for (const auto& map_pair : *arg) {
msgpack_pack_array(&pk, 2);
msgpack_pack_unsigned_char(&pk, static_cast<uint8_t>(map_pair.first));
msgpack_pack_unsigned_char(&pk, map_pair.second);
}
} else if constexpr (std::is_same_v<PointeeType, std::map<std::string, uint8_t>>) {
msgpack_pack_map(&pk, arg->size());
for (const auto& map_pair : *arg) {
msgpack_pack_str(&pk, map_pair.first.size());
msgpack_pack_str_body(&pk, map_pair.first.data(), map_pair.first.size());
msgpack_pack_unsigned_char(&pk, map_pair.second);
} }
}
}, pair.second);
}
std::vector<uint8_t> serialized_data(reinterpret_cast<uint8_t*>(sbuf.data), reinterpret_cast<uint8_t*>(sbuf.data) + sbuf.size);
msgpack_sbuffer_destroy(&sbuf);
return serialized_data;
}
template <typename ConfigType>
std::string ConfigManager::updateFromJson(const std::string& json_string) {
// RAII guard for cJSON cleanup
struct cJSONGuard {
cJSON* ptr;
cJSONGuard(cJSON* p) : ptr(p) {}
~cJSONGuard() { if(ptr) cJSON_Delete(ptr); }
cJSON* get() { return ptr; }
operator bool() const { return ptr != nullptr; }
};
cJSONGuard root(cJSON_Parse(json_string.c_str()));
if (!root) {
ESP_LOGE(TAG, "Failed to parse JSON: invalid format.");
return "";
}
if (!cJSON_IsObject(root.get())) {
ESP_LOGE(TAG, "JSON root is not an object.");
return "";
}
ConfigMapType* configMapPtr = nullptr;
if constexpr (std::is_same_v<ConfigType, espConfig::misc_config_t>) {
configMapPtr = &m_configMap["misc"];
} else if constexpr (std::is_same_v<ConfigType, espConfig::actions_config_t>) {
configMapPtr = &m_configMap["actions"];
} else if constexpr (std::is_same_v<ConfigType, espConfig::mqttConfig_t>) {
configMapPtr = &m_configMap["mqtt"];
} else {
ESP_LOGE(TAG, "Invalid configuration type specified.");
return "";
}
for (cJSON *it = root.get()->child; it != NULL; it = it->next) {
std::string keyStr = it->string;
auto config_entry = configMapPtr->find(keyStr);
if (config_entry != configMapPtr->end()) {
std::visit([&](auto&& arg) {
using T = std::decay_t<decltype(arg)>;
if constexpr (std::is_pointer_v<T>) {
using PointeeType = std::remove_pointer_t<T>;
if constexpr (std::is_same_v<PointeeType, std::string>) {
if (cJSON_IsString(it)) {
arg->assign(it->valuestring);
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected string.", keyStr.c_str());
}
} else if constexpr (std::is_same_v<PointeeType, bool>) {
if (cJSON_IsBool(it)) {
*arg = cJSON_IsTrue(it);
} else if (cJSON_IsNumber(it)) {
*arg = (it->valueint != 0);
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected boolean.", keyStr.c_str());
}
} else if constexpr (std::is_integral_v<PointeeType>) {
if (cJSON_IsNumber(it)) {
if (it->valueint < 0 || it->valueint > std::numeric_limits<PointeeType>::max()) {
ESP_LOGW(TAG, "Value out of range for '%s': %d", keyStr.c_str(), it->valueint);
} else {
*arg = static_cast<PointeeType>(it->valueint);
}
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected number.", keyStr.c_str());
}
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 4>> ||
std::is_same_v<PointeeType, std::array<uint8_t, 5>> ||
std::is_same_v<PointeeType, std::array<uint8_t, 7>>) {
if (cJSON_IsArray(it)) {
int array_size = cJSON_GetArraySize(it);
if (array_size == arg->size()) {
bool array_success = true;
for (int i = 0; i < array_size; ++i) {
cJSON *sub_item = cJSON_GetArrayItem(it, i);
if (cJSON_IsNumber(sub_item)) {
(*arg)[i] = static_cast<uint8_t>(sub_item->valueint);
} else {
array_success = false;
break;
}
}
if (!array_success) {
ESP_LOGW(TAG, "Validation failed for '%s': array contains non-numeric elements.", keyStr.c_str());
}
} else {
ESP_LOGW(TAG, "Validation failed for '%s': incorrect array size. Expected %zu, got %d.", keyStr.c_str(), arg->size(), array_size);
}
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected array.", keyStr.c_str());
}
} else if constexpr (std::is_same_v<PointeeType, std::map<espConfig::actions_config_t::colorMap, uint8_t>>) {
if (cJSON_IsArray(it)) {
arg->clear();
cJSON *inner_array;
cJSON_ArrayForEach(inner_array, it) {
if (cJSON_IsArray(inner_array) && cJSON_GetArraySize(inner_array) == 2) {
cJSON *key_json = cJSON_GetArrayItem(inner_array, 0);
cJSON *value_json = cJSON_GetArrayItem(inner_array, 1);
if (cJSON_IsNumber(key_json) && cJSON_IsNumber(value_json)) {
arg->emplace(
static_cast<espConfig::actions_config_t::colorMap>(key_json->valueint),
static_cast<uint8_t>(value_json->valueint)
);
}
}
}
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected an array of [key, value] pairs.", keyStr.c_str());
}
} else if constexpr (std::is_same_v<PointeeType, std::map<std::string, uint8_t>>) {
if (cJSON_IsObject(it)) {
arg->clear();
cJSON* sub_obj_item;
cJSON_ArrayForEach(sub_obj_item, it) {
if (cJSON_IsNumber(sub_obj_item)) {
(*arg)[sub_obj_item->string] = static_cast<uint8_t>(sub_obj_item->valueint);
}
}
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected an object.", keyStr.c_str());
}
}
}
}, config_entry->second);
} else {
ESP_LOGW(TAG, "'%s' is not a valid configuration key and will be ignored.", keyStr.c_str());
}
}
return serializeToJson<ConfigType>();
}
template std::string ConfigManager::updateFromJson<espConfig::misc_config_t>(const std::string& json_string);
template std::string ConfigManager::updateFromJson<espConfig::actions_config_t>(const std::string& json_string);
template std::string ConfigManager::updateFromJson<espConfig::mqttConfig_t>(const std::string& json_string);
template <typename ConfigType>
/**
* @brief Convert the selected configuration (MQTT or misc) into a JSON string.
*
* Serializes in-memory configuration fields into a JSON object. Supported field types:
* - std::string as JSON strings
* - bool as JSON booleans
* - uint8_t/uint16_t as JSON numbers
* - fixed-size byte arrays (std::array<uint8_t, 4|5|7>) as JSON arrays of numbers
* - std::map<espConfig::misc_config_t::colorMap, uint8_t> as an array of two-element arrays [enumValue, value]
* - std::map<std::string, uint8_t> as a JSON object mapping names to numeric values
*
* @return std::string JSON representation of the configuration; returns an empty string if serialization fails.
*/
std::string ConfigManager::serializeToJson() {
// RAII guard for cJSON cleanup
struct cJSONGuard {
cJSON* ptr;
cJSONGuard(cJSON* p) : ptr(p) {}
~cJSONGuard() { if(ptr) cJSON_Delete(ptr); }
cJSON* get() { return ptr; }
operator bool() const { return ptr != nullptr; }
};
cJSONGuard root(cJSON_CreateObject());
if (!root) {
return ""; // Error creating JSON object
}
ConfigMapType configMap;
if constexpr (std::is_same_v<espConfig::misc_config_t, ConfigType>){
configMap = m_configMap["misc"];
} else if constexpr (std::is_same_v<espConfig::actions_config_t, ConfigType>){
configMap = m_configMap["actions"];
} else if constexpr (std::is_same_v<espConfig::mqttConfig_t, ConfigType>){
configMap = m_configMap["mqtt"];
}
for (const auto &pair : configMap) {
const std::string& key = pair.first;
std::visit([&](auto&& arg) {
using T = std::decay_t<decltype(arg)>;
if constexpr (std::is_pointer_v<T>) {
using PointeeType = std::remove_pointer_t<T>;
if constexpr (std::is_same_v<PointeeType, std::string>) {
if(key.contains("Password") || key.contains("Passwd")){
cJSON_AddStringToObject(root.get(), key.c_str(), "********");
} else {
cJSON_AddStringToObject(root.get(), key.c_str(), arg->c_str());
}
} else if constexpr (std::is_same_v<PointeeType, bool>) {
cJSON_AddBoolToObject(root.get(), key.c_str(), *arg);
} else if constexpr (std::is_same_v<PointeeType, uint8_t> || std::is_same_v<PointeeType, uint16_t>) {
cJSON_AddNumberToObject(root.get(), key.c_str(), static_cast<double>(*arg));
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 4>> ||
std::is_same_v<PointeeType, std::array<uint8_t, 5>> ||
std::is_same_v<PointeeType, std::array<uint8_t, 7>>) {
cJSON *array = cJSON_CreateArray();
if (array) {
for (const auto& val : *arg) {
cJSON_AddItemToArray(array, cJSON_CreateNumber(static_cast<double>(val)));
}
cJSON_AddItemToObject(root.get(), key.c_str(), array);
}
} else if constexpr (std::is_same_v<PointeeType, std::map<espConfig::actions_config_t::colorMap, uint8_t>>) {
cJSON *array_of_arrays = cJSON_CreateArray();
if (array_of_arrays) {
for (const auto& map_pair : *arg) {
cJSON *inner_array = cJSON_CreateArray();
cJSON_AddItemToArray(inner_array, cJSON_CreateNumber(static_cast<double>(map_pair.first))); // Enum key as integer
cJSON_AddItemToArray(inner_array, cJSON_CreateNumber(static_cast<double>(map_pair.second)));
cJSON_AddItemToArray(array_of_arrays, inner_array);
}
cJSON_AddItemToObject(root.get(), key.c_str(), array_of_arrays);
}
} else if constexpr (std::is_same_v<PointeeType, std::map<std::string, uint8_t>>) {
cJSON *map_obj = cJSON_CreateObject();
if (map_obj) {
for (const auto& map_pair : *arg) {
cJSON_AddNumberToObject(map_obj, map_pair.first.c_str(), static_cast<double>(map_pair.second));
}
cJSON_AddItemToObject(root.get(), key.c_str(), map_obj);
}
}
}
}, pair.second);
}
char *json_string = cJSON_PrintUnformatted(root.get());
std::string result(json_string ? json_string : "");
if (json_string) {
free(json_string);
}
return result;
}
template std::string ConfigManager::serializeToJson<espConfig::misc_config_t>();
template std::string ConfigManager::serializeToJson<espConfig::actions_config_t>();
template std::string ConfigManager::serializeToJson<espConfig::mqttConfig_t>();
template <typename ConfigType>
/**
* @brief Parses a JSON string and applies its fields to the selected in-memory configuration.
*
* Parses `json_string`, validates types and shapes of present fields, and updates the corresponding
* configuration members (either the "misc" or "mqtt" config selected by the template parameter).
* Only keys that exist in the manager's config map are processed; keys with type/shape mismatches
* are ignored and cause the function to report failure.
*
* @param json_string JSON object string containing configuration keys and values.
* @return bool `true` if the JSON was parsed and all processed keys were valid and applied; `false` if parsing failed or one or more processed keys failed validation.
*/
bool ConfigManager::deserializeFromJson(const std::string& json_string) {
// RAII guard for cJSON cleanup
struct cJSONGuard {
cJSON* ptr;
cJSONGuard(cJSON* p) : ptr(p) {}
~cJSONGuard() { if(ptr) cJSON_Delete(ptr); }
cJSON* get() { return ptr; }
operator bool() const { return ptr != nullptr; }
};
cJSONGuard root(cJSON_Parse(json_string.c_str()));
if (!root) {
ESP_LOGE(TAG, "Failed to parse JSON: invalid format.");
return false;
}
if (!cJSON_IsObject(root.get())) {
ESP_LOGE(TAG, "JSON root is not an object.");
return false;
}
ConfigMapType configMap;
if constexpr (std::is_same_v<ConfigType, espConfig::misc_config_t>){
configMap = m_configMap["misc"];
} else if constexpr (std::is_same_v<ConfigType, espConfig::actions_config_t>){
configMap = m_configMap["actions"];
} else if constexpr (std::is_same_v<ConfigType, espConfig::mqttConfig_t>){
configMap = m_configMap["mqtt"];
} else {
static_assert(std::is_void_v<ConfigType> && false, "Unsupported ConfigType for deserializeFromJson");
}
bool success = true;
cJSON *item = root.get()->child;
while (item) {
std::string key = item->string;
if (configMap.contains(key)) {
std::visit([&](auto&& arg) {
using T = std::decay_t<decltype(arg)>;
if constexpr (std::is_pointer_v<T>) {
using PointeeType = std::remove_pointer_t<T>;
if constexpr (std::is_same_v<PointeeType, std::string>) {
if (cJSON_IsString(item)) {
arg->assign(item->valuestring);
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected string.", key.c_str());
success = false;
}
} else if constexpr (std::is_same_v<PointeeType, bool>) {
if (cJSON_IsBool(item)) {
*arg = cJSON_IsTrue(item);
} else if(cJSON_IsNumber(item)) {
*arg = static_cast<PointeeType>(item->valueint);
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected boolean.", key.c_str());
success = false;
}
} else if constexpr (std::is_same_v<PointeeType, uint8_t> || std::is_same_v<PointeeType, uint16_t>) {
if (cJSON_IsNumber(item)) {
if (item->valuedouble < 0 || item->valuedouble > std::numeric_limits<PointeeType>::max()) {
ESP_LOGW(TAG, "Value out of range for '%s': %f", key.c_str(), item->valuedouble);
success = false;
} else {
*arg = static_cast<PointeeType>(item->valuedouble);
}
} else {
ESP_LOGW(TAG, "Validation failed for '%s': type mismatch, expected number.", key.c_str());
success = false;
}
} else if constexpr (std::is_same_v<PointeeType, std::array<uint8_t, 4>> ||
std::is_same_v<PointeeType, std::array<uint8_t, 5>> ||