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// matth-x/ArduinoOcpp
// Copyright Matthias Akstaller 2019 - 2021
// MIT License
#include <ArduinoOcpp/MessagesV16/ChangeConfiguration.h>
#include <ArduinoOcpp/Core/Configuration.h>
#include <Variants.h>
using ArduinoOcpp::Ocpp16::ChangeConfiguration;
ChangeConfiguration::ChangeConfiguration() {
}
const char* ChangeConfiguration::getOcppOperationType(){
return "ChangeConfiguration";
}
void ChangeConfiguration::processReq(JsonObject payload) {
String key = payload["key"];
if (key.isEmpty()) {
err = true;
Serial.print(F("[ChangeConfiguration] Could not read key!\n"));
return;
}
JsonVariant value = payload["value"];
if (value.isNull()) {
err = true;
Serial.print(F("[ChangeConfiguration] Message is lacking value!\n"));
return;
}
/*
* Parse value
*/
bool isInt = false;
int numInt = -1;
bool isFloat = false;
float numFloat = -1.0f;
bool isString = false;
const char *value_string = "\0";
if (value.is<int>()) { //Not enough. SteVe always sends numerical values as strings. Must also handle this
isInt = true;
numInt = value.as<int>();
//configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<int>(key.c_str(), value.as<int>()));
} else if (value.is<float>()) {
isFloat = true;
numFloat = value.as<float>();
//configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<float>(key.c_str(), value.as<float>()));
} else if (value.is<const char *>()) { //SteVe sends numerical values as strings. Check for that first
isString = true;
value_string = value.as<const char *>();
size_t value_buffsize = strlen(value_string) + 1;
/*
* Try to interpret input as number
*/
int nDigits = 0, nNonDigits = 0, nDots = 0, nSign = 0; //"-1.234" has 4 digits, 0 nonDigits, 1 dot and 1 sign. Don't allow comma as seperator. Don't allow e-expressions (e.g. 1.23e-7)
numInt = 0;
numFloat = 0.f;
float numFloatTranslate = 1.f;
for (size_t i = 0; i < value_buffsize - 1; i++) { //exclude terminating \0
char c = value_string[i];
if (c == '0' || c == '1' || c == '2' || c == '3' || c == '4' || c == '5' || c == '6' || c == '7' || c == '8' || c == '9') {
nDigits++;
numInt *= 10;
numInt += c - '0';
numFloat *= 10.f;
numFloat += (float) (c - '0');
if (nDots != 0) {
numFloatTranslate *= 10.f;
}
} else if (c == '.') {
nDots++;
} else if (i == 0 && c == '-') {
nSign++;
} else {
nNonDigits++;
}
}
int INT_MAXDIGITS; //plausibility check: this allows a numerical range of (-999,999,999 to 999,999,999), or (-9,999 to 9,999) respectively
if (sizeof(int) >= 4UL)
INT_MAXDIGITS = 9;
else
INT_MAXDIGITS = 4;
//bool isString = false;
if (nNonDigits == 0 && nDigits > 0 && nSign <= 1 && nDots == 0) {
//integer
if (nDigits > INT_MAXDIGITS) {
Serial.print(F("[ChangeConfiguration] Integer overflow! key = "));
Serial.print(key.c_str());
Serial.print(F(", value = "));
Serial.println(value_string);
err = true;
return;
} else {
if (nSign == 1) {
int neg = -numInt;
numInt = neg;
}
//configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<int>(key.c_str(), numInt));
isInt = true;
}
} else if (nNonDigits == 0 && nDigits > 0 && nSign <= 1 && nDots == 1) {
//float
// no overflow check
numFloat /= numFloatTranslate; // "1." <-- numFlTrans = 1.f; "-1.234" <-- numFlTrans = 1000.f
if (nSign == 1) {
numFloat *= -1.f;
}
//configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<float>(key.c_str(), numFloat));
isFloat = true;
} else {
//only string
isString = true;
//configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<const char *>(key.c_str(), value_string));
}
}
std::shared_ptr<AbstractConfiguration> configuration = getConfiguration(key.c_str());
if (configuration) {
if (!configuration->permissionRemotePeerCanWrite()) {
readOnly = true;
Serial.print(F("[ChangeConfiguration] Trying to override readonly value!\n"));
return;
}
if (!strcmp(configuration->getSerializedType(), SerializedType<int>::get()) && isInt) {
std::shared_ptr<Configuration<int>> configurationConcrete = std::static_pointer_cast<Configuration<int>>(configuration);
*configurationConcrete = numInt;
} else if (!strcmp(configuration->getSerializedType(), SerializedType<float>::get()) && isFloat) {
std::shared_ptr<Configuration<float>> configurationConcrete = std::static_pointer_cast<Configuration<float>>(configuration);
*configurationConcrete = numFloat;
} else if (!strcmp(configuration->getSerializedType(), SerializedType<const char *>::get()) && isString) {
std::shared_ptr<Configuration<const char *>> configurationConcrete = std::static_pointer_cast<Configuration<const char *>>(configuration);
*configurationConcrete = value_string;
// } else if (!strcmp(configuration->getSerializedType(), SerializedType<String>::get()) && value.is<String>()) {
// std::shared_ptr<Configuration<String>> configurationConcrete = std::static_pointer_cast<Configuration<String>>(configuration);
// *configurationConcrete = value.as<String>();
} else {
err = true;
Serial.print(F("[ChangeConfiguration] Value has incompatible type!\n"));
return;
}
} else {
//configuration does not exist yet. Create new entry
if (isInt) {
configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<int>(key.c_str(), numInt));
} else if (isFloat) {
configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<float>(key.c_str(), numFloat));
} else if (isString) {
configuration = std::static_pointer_cast<AbstractConfiguration>(declareConfiguration<const char*>(key.c_str(), value_string));
} else {
err = true;
Serial.print(F("[ChangeConfiguration] Could not parse value!\n"));
return;
}
} //end if (configuration)
if (!configuration) {
err = true;
Serial.print(F("[ChangeConfiguration] Could not deserialize value or set configuration!\n"));
return;
}
//success
configuration_save(); //TODO encapsulate in AbstractConfiguration: will split configurations in multiple files. Only write back modified data
if (configuration->requiresRebootWhenChanged()) {
rebootRequired = true;
}
//success
}
DynamicJsonDocument* ChangeConfiguration::createConf(){
DynamicJsonDocument* doc = new DynamicJsonDocument(JSON_OBJECT_SIZE(1));
JsonObject payload = doc->to<JsonObject>();
if (err || readOnly) {
payload["status"] = "Rejected";
} else if (rebootRequired) {
payload["status"] = "RebootRequired";
} else {
payload["status"] = "Accepted";
}
return doc;
}