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IoTManager/lib/decoder/src/decoder.h
Mit4el e5781dc424 new Ble ver, 2 parts
2023-11-15 21:54:02 +03:00

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/*
TheengsDecoder - Decode things and devices
Copyright: (c)Florian ROBERT
This file is part of TheengsDecoder.
TheengsDecoder is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TheengsDecoder is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//#define DEBUG_DECODER
#ifdef BLE_PART1
#define PART1_XIAOMI
#endif
#ifdef BLE_PART2
#define PART2_OTHER
#endif
#ifndef _DECODER_H_
#define _DECODER_H_
//#define ARDUINOJSON_USE_LONG_LONG 1
#include "ArduinoJson.h"
#include <climits>
#include <string>
#include "devices.h"
#ifdef DEBUG_DECODER
# include <stdio.h>
# define DEBUG_PRINT(...) \
{ printf(__VA_ARGS__); }
#else
# define DEBUG_PRINT(...) \
{}
#endif
#ifdef UNIT_TESTING
# define TEST_MAX_DOC 16384UL
# include <assert.h>
static size_t peakDocSize = 0;
#endif
#define SVC_DATA "servicedata"
#define MFG_DATA "manufacturerdata"
class TheengsDecoder;
typedef double (TheengsDecoder::*decoder_function)(const char* data_str,
int offset, int data_length,
bool reverse, bool canBeNegative, bool isFloat);
typedef double (TheengsDecoder::*staticbitdecoder_function)(const char* data_str,
const char* source_str, int offset, int bitindex,
const char* falseresult, const char* trueresult);
class TheengsDecoder {
public:
TheengsDecoder() {}
~TheengsDecoder() {}
/*
int decodeBLEJson(JsonObject& jsondata);
void setMinServiceDataLen(size_t len);
void setMinManufacturerDataLen(size_t len);
std::string getTheengProperties(const char* model_id);
std::string getTheengProperties(int mod_index);
std::string getTheengAttribute(const char* model_id, const char* attribute);
std::string getTheengAttribute(int model_id, const char* attribute);
int getTheengModel(JsonDocument& doc, const char* model_id);
#ifdef UNIT_TESTING
int testDocMax();
#endif
*/
enum BLE_ID_NUM {
UNKNOWN_MODEL = -1,
HHCCJCY01HHCC = 0,
LYWSD02,
LYWSDCGQ,
CGP1W,
CGG1_STOCK,
CGG1_ATC1441,
CGG1_PVVX,
CGG1_STOCK_2,
CGDN1,
CGD1,
CGDK2_STOCK,
CGDK2_PVVX,
CGDK2_ATC1441,
CGH1,
JQJCY01YM,
IBSTHBP01B,
IBT_2X,
IBT_2XS,
IBT4XS,
IBT6XS_SOLIS,
MIBAND,
XMTZC04HMKG,
XMTZC04HMLB,
XMTZC05HMKG,
XMTZC05HMLB,
TPMS,
KKM_K6P,
KKM_K9,
LYWSD03MMC_ATC,
LYWSD03MMC_PVVX,
LYWSD03MMC_PVVX_DECR,
LYWSD03MMC_PVVX_ENCR,
CGPR1,
THERMOBEACON,
H5055,
H5072,
H5074,
H5102,
H5106,
H5179,
HHCCJCY10,
MUE4094RT,
MOKOBEACON,
MOKOBEACONXPRO,
INODEEM,
RUUVITAG_RAWV1,
RUUVITAG_RAWV2,
SBCS,
SBCU,
SBMS,
SBMT,
SBOT,
SBS1,
SHT4X,
SCD4X,
SKALE,
SMARTDRY,
BC08,
BM1IN1,
BM3IN1,
BM4IN1,
MS_CDP,
GAEN,
HHCCPOT002,
BPARASITE,
BWBSDOO,
BM2,
BM6,
RDL52832,
ABN03,
ABN07,
ABTEMP,
AMPHIRO,
ORALB_BT,
PH10,
TPTH,
MOPEKA,
T201,
T301,
NUT,
ITAG,
TAGIT,
TILE,
TILEN,
JHT_F525,
IBEACON,
APPLE_CONT,
APPLE_CONTAT,
SERVICE_DATA,
SBBT_002C,
SBBT_002C_ENCR,
SBDW_002C,
SBDW_002C_ENCR,
SBMO_003Z,
SBMO_003Z_ENCR,
BLE_ID_MAX
};
/*
private:
void reverse_hex_data(const char* in, char* out, int l);
double value_from_hex_string(const char* data_str, int offset, int data_length, bool reverse, bool canBeNegative = true, bool isFloat = false);
double bf_value_from_hex_string(const char* data_str, int offset, int data_length, bool reverse, bool canBeNegative = true, bool isFloat = false);
bool data_index_is_valid(const char* str, size_t index, size_t len);
bool data_length_is_valid(size_t data_len, size_t default_min, const JsonArray& condition, int *idx);
uint8_t getBinaryData(char ch);
bool evaluateDatalength(std::string op, size_t data_len, size_t req_len);
bool checkPropCondition(const JsonArray& prop, const char* svc_data, const char* mfg_data);
bool checkDeviceMatch(const JsonArray& condition, const char* svc_data, const char* mfg_data,
const char* dev_name, const char* svc_uuid, const char* mac_id);
std::string sanitizeJsonKey(const char* key_in);
*/
size_t m_docMax = 12000;
size_t m_minSvcDataLen = 20;
size_t m_minMfgDataLen = 16;
/*
* @brief Revert the string data 2 by 2 to get the correct endianness
*/
void reverse_hex_data(const char* in, char* out, int l) {
int i = l, j = 0;
while (i) {
out[j] = in[i - 2];
out[j + 1] = in[i - 1];
i -= 2;
j += 2;
}
out[l] = '\0';
}
double bf_value_from_hex_string(const char* data_str,
int offset, int data_length,
bool reverse, bool canBeNegative, bool isFloat) {
DEBUG_PRINT("extracting BCF data\n");
long value = (long)value_from_hex_string(data_str, offset, data_length, reverse, false, false);
double d_value = ((((value >> 8) * 100) + (uint8_t)value)) / 100.0;
if (canBeNegative) {
if (data_length == 4 && value > SHRT_MAX) {
d_value = -d_value + (SCHAR_MAX + 1);
}
}
return d_value;
}
/*
* @brief Extracts the data value from the data string
*/
double value_from_hex_string(const char* data_str,
int offset, int data_length,
bool reverse, bool canBeNegative, bool isFloat) {
DEBUG_PRINT("offset: %d, len %d, rev %u, neg, %u, flo, %u\n",
offset, data_length, reverse, canBeNegative, isFloat);
std::string data(&data_str[offset], data_length);
if (reverse) {
reverse_hex_data(&data_str[offset], &data[0], data_length);
}
double value = 0;
if (!isFloat) {
value = strtoll(data.c_str(), NULL, 16);
DEBUG_PRINT("extracted value from %s = %lld\n", data.c_str(), (long long)value);
} else {
long longV = strtol(data.c_str(), NULL, 16);
float floatV = *((float*)&longV);
DEBUG_PRINT("extracted float value from %s = %f\n", data.c_str(), floatV);
value = floatV;
}
if (canBeNegative) {
if (data_length <= 2 && value > SCHAR_MAX) {
value -= (UCHAR_MAX + 1);
} else if (data_length == 4 && value > SHRT_MAX) {
value -= (USHRT_MAX + 1);
}
}
return value;
}
/*
* @brief Removes the underscores at the beginning of key strings
* when duplicate properties exist in a device.
*/
std::string sanitizeJsonKey(const char* key_in) {
unsigned int key_index = 0;
while (key_in[key_index] == '_') {
key_index++;
}
return std::string(key_in + key_index);
}
/*
* @brief Checks to ensure accessing data at the index + length of the string is valid.
*/
bool data_index_is_valid(const char* str, size_t index, size_t len) {
if (strlen(str) < (index + len)) {
return false;
}
return true;
}
bool data_length_is_valid(size_t data_len, size_t default_min,
const JsonArray& condition, int* idx) {
std::string op = condition[*idx + 1].as<std::string>();
if (!op.empty() && op.length() > 2) {
return (data_len >= default_min);
}
if (!condition[*idx + 2].is<size_t>()) {
*idx = -1;
return false;
}
size_t req_len = condition[*idx + 2].as<size_t>();
*idx += 2;
return evaluateDatalength(op, data_len, req_len);
}
uint8_t getBinaryData(char ch) {
uint8_t data = 0;
if (ch >= '0' && ch <= '9')
data = ch - '0';
else if (ch >= 'a' && ch <= 'f')
data = 10 + (ch - 'a');
return data;
}
bool evaluateDatalength(std::string op, size_t data_len, size_t req_len) {
if (op == "=" && data_len == req_len) return true;
if (op == ">=" && data_len >= req_len) return true;
if (op == ">" && data_len > req_len) return true;
if (op == "<=" && data_len <= req_len) return true;
if (op == "<" && data_len < req_len) return true;
return false;
}
bool checkDeviceMatch(const JsonArray& condition,
const char* svc_data,
const char* mfg_data,
const char* dev_name,
const char* svc_uuid,
const char* mac_id) {
bool match = false;
int cond_size = condition.size();
for (int i = 0; i < cond_size;) {
if (condition[i].is<JsonArray>()) {
DEBUG_PRINT("found nested array\n");
match = checkDeviceMatch(condition[i], svc_data, mfg_data, dev_name, svc_uuid, mac_id);
if (++i < cond_size) {
if (!match && *condition[i].as<const char*>() == '|') {
} else if (match && *condition[i].as<const char*>() == '&') {
match = false;
} else {
break;
}
i++;
} else {
break;
}
}
const char* cmp_str = nullptr;
const char* cond_str = condition[i].as<const char*>();
if (svc_data != nullptr && strstr(cond_str, SVC_DATA) != nullptr) {
if (data_length_is_valid(strlen(svc_data), m_minSvcDataLen, condition, &i)) {
cmp_str = svc_data;
match = true;
} else {
match = false;
if (i < 0) {
break;
}
}
} else if (mfg_data != nullptr && strstr(cond_str, MFG_DATA) != nullptr) {
if (data_length_is_valid(strlen(mfg_data), m_minMfgDataLen, condition, &i)) {
cmp_str = mfg_data;
match = true;
} else {
match = false;
if (i < 0) {
break;
}
}
} else if (dev_name != nullptr && strstr(cond_str, "name") != nullptr) {
cmp_str = dev_name;
} else if (svc_uuid != nullptr && strstr(cond_str, "uuid") != nullptr) {
cmp_str = svc_uuid;
} else {
break;
}
if (!match && cmp_str == nullptr) {
while (i < cond_size && *cond_str != '|') {
if (!condition[++i].is<const char*>()) {
continue;
}
cond_str = condition[i].as<const char*>();
}
if (i < cond_size && cond_str != nullptr) {
i++;
continue;
}
}
cond_str = condition[++i].as<const char*>();
if (cmp_str != nullptr && cond_str != nullptr && *cond_str != '&' && *cond_str != '|') {
if (cmp_str == svc_uuid && !strncmp(cmp_str, "0x", 2)) {
cmp_str += 2;
}
if (strstr(cond_str, "contain") != nullptr) {
if (strstr(cmp_str, condition[++i].as<const char*>()) != nullptr) {
match = true; // (strstr(cond_str, "not_") != nullptr) ? false : true;
} else {
match = false; // (strstr(cond_str, "not_") != nullptr) ? true : false;
}
i++;
} else if (strstr(cond_str, "mac@index") != nullptr) {
size_t cond_index = condition[++i].as<size_t>();
size_t cond_len = 12;
const char* string_to_compare = nullptr;
std::string mac_string = mac_id;
// remove colons and make lower case
for (int x = 0; x < mac_string.length(); x++) {
if (mac_string[x] == ':') {
mac_string.erase(x, 1);
}
mac_string[x] = tolower(mac_string[x]);
}
string_to_compare = mac_string.c_str();
if (strstr(cond_str, "revmac@index") != nullptr) {
char* reverse_mac_string = (char*)malloc(strlen(string_to_compare) + 1);
reverse_hex_data(string_to_compare, reverse_mac_string, 12);
string_to_compare = reverse_mac_string;
}
if (!data_index_is_valid(cmp_str, cond_index, cond_len)) {
DEBUG_PRINT("Invalid data %s; skipping\n", cmp_str);
match = false;
break;
}
DEBUG_PRINT("comparing value: %s to %s at index %zu\n",
&cmp_str[cond_index],
string_to_compare,
cond_index);
if (strncmp(&cmp_str[cond_index],
string_to_compare,
12) == 0) {
match = true;
} else {
match = false;
}
i++;
} else if (strstr(cond_str, "index") != nullptr) {
size_t cond_index = condition[++i].as<size_t>();
size_t cond_len = strlen(condition[++i].as<const char*>());
if (!data_index_is_valid(cmp_str, cond_index, cond_len)) {
DEBUG_PRINT("Invalid data %s; skipping\n", cmp_str);
match = false;
break;
}
bool inverse = false;
if (*condition[i].as<const char*>() == '!') {
inverse = true;
i++;
}
DEBUG_PRINT("comparing value: %s to %s at index %zu\n",
&cmp_str[cond_index],
condition[i].as<const char*>(),
cond_index);
if (strncmp(&cmp_str[cond_index],
condition[i].as<const char*>(),
cond_len) == 0) {
match = inverse ? false : true;
} else {
match = inverse ? true : false;
}
i++;
}
cond_str = condition[i].as<const char*>();
}
if (i < cond_size && cond_str != nullptr) {
if (!match && *cond_str == '|') {
i++;
continue;
} else if (match && *cond_str == '&') {
i++;
match = false;
continue;
} else if (match) { // check for AND case before exit
while (i < cond_size && *cond_str != '&') {
if (!condition[++i].is<const char*>()) {
continue;
}
cond_str = condition[i].as<const char*>();
}
if (i < cond_size && cond_str != nullptr) {
i++;
match = false;
continue;
}
}
}
break;
}
return match;
}
bool checkPropCondition(const JsonArray& prop_condition,
const char* svc_data,
const char* mfg_data) {
int cond_size = prop_condition.size();
bool cond_met = prop_condition.isNull();
if (!cond_met) {
for (int i = 0; i < cond_size; i += 4) {
if (prop_condition[i].is<JsonArray>()) {
DEBUG_PRINT("found nested array\n");
cond_met = checkPropCondition(prop_condition[i], svc_data, mfg_data);
if (++i < cond_size) {
if (!cond_met && *prop_condition[i].as<const char*>() == '|') {
} else if (cond_met && *prop_condition[i].as<const char*>() == '&') {
cond_met = false;
} else {
break;
}
i++;
} else {
break;
}
}
bool inverse = 0;
const char* prop_data_src = prop_condition[i];
const char* data_src = nullptr;
if (svc_data && strstr(prop_data_src, SVC_DATA) != nullptr) {
data_src = svc_data;
} else if (mfg_data && strstr(prop_data_src, MFG_DATA) != nullptr) {
data_src = mfg_data;
}
if (data_src) {
if (prop_condition[i + 1].is<int>()) {
inverse = *(const char*)prop_condition[i + 2] == '!';
size_t cond_len = strlen(prop_condition[i + 2 + inverse].as<const char*>());
if (strstr((const char*)prop_condition[i + 2], "bit") != nullptr) {
char ch = *(data_src + prop_condition[i + 1].as<int>());
uint8_t data = getBinaryData(ch);
uint8_t shift = prop_condition[i + 3].as<uint8_t>();
uint8_t val = prop_condition[i + 4].as<uint8_t>();
if (((data >> shift) & 0x01) == val) {
cond_met = true;
}
i += 2;
} else if (!strncmp(&data_src[prop_condition[i + 1].as<int>()],
prop_condition[i + 2 + inverse].as<const char*>(), cond_len)) {
cond_met = inverse ? false : true;
} else if (strncmp(&data_src[prop_condition[i + 1].as<int>()],
prop_condition[i + 2 + inverse].as<const char*>(), cond_len)) {
cond_met = inverse ? true : false;
}
} else {
std::string op = prop_condition[i + 1].as<std::string>();
size_t data_len = strlen(data_src);
size_t req_len = prop_condition[i + 2].as<size_t>();
cond_met = evaluateDatalength(op, data_len, req_len);
}
} else {
DEBUG_PRINT("ERROR property condition data source invalid\n");
return false;
}
i += inverse;
if (cond_size > (i + 3)) {
if (!cond_met && *prop_condition[i + 3].as<const char*>() == '|') {
continue;
} else if (cond_met && *prop_condition[i + 3].as<const char*>() == '&') {
cond_met = false;
continue;
} else {
break;
}
}
}
}
return cond_met;
}
/*
* @brief Compares the input json values to the known devices and
* decodes the data if a match is found.
*/
int decodeBLEJson(JsonObject& jsondata) {
#ifdef UNIT_TESTING
DynamicJsonDocument doc(TEST_MAX_DOC);
#else
DynamicJsonDocument doc(m_docMax);
#endif
const char* svc_data = jsondata[SVC_DATA].as<const char*>();
const char* mfg_data = jsondata[MFG_DATA].as<const char*>();
const char* dev_name = jsondata["name"].as<const char*>();
const char* svc_uuid = jsondata["servicedatauuid"].as<const char*>();
const char* mac_id = jsondata["id"].as<const char*>();
int success = -1;
// if there is no data to decode just return
if (svc_data == nullptr && mfg_data == nullptr && dev_name == nullptr) {
DEBUG_PRINT("Invalid data\n");
return success;
}
/* loop through the devices and attempt to match the input data to a device parameter set */
for (auto i_main = 0; i_main < sizeof(_devices) / sizeof(_devices[0]); ++i_main) {
DeserializationError error = deserializeJson(doc, _devices[i_main][0]);
if (error) {
DEBUG_PRINT("deserializeJson() failed: %s\n", error.c_str());
#ifdef UNIT_TESTING
assert(0);
#endif
return success;
}
#ifdef UNIT_TESTING
if (doc.memoryUsage() > peakDocSize)
peakDocSize = doc.memoryUsage();
#endif
/* found a match, extract the data */
JsonArray selectedCondition;
#ifdef NO_MAC_ADDR
if (doc.containsKey("conditionnomac")) {
selectedCondition = doc["conditionnomac"];
} else {
selectedCondition = doc["condition"];
}
#else
selectedCondition = doc["condition"];
#endif
if (checkDeviceMatch(selectedCondition, svc_data, mfg_data, dev_name, svc_uuid, mac_id)) {
jsondata["brand"] = doc["brand"];
jsondata["model"] = doc["model"];
jsondata["model_id"] = doc["model_id"];
if (doc.containsKey("tag")) {
doc.add("type");
doc["type"] = NULL;
std::string tagstring = doc["tag"];
int type = strtol(tagstring.substr(0, 2).c_str(), NULL, 16);
switch (type) {
case 1:
doc["type"] = "THB"; // Termperature, Humidity, Battery
break;
case 2:
doc["type"] = "THBX"; // Termperature, Humidity, Battery, Extra
break;
case 3:
doc["type"] = "BBQ"; // Multip probe temperatures only
break;
case 4:
doc["type"] = "CTMO"; // Contact and/or Motion sensor
break;
case 5:
doc["type"] = "SCALE"; // weight scale
break;
case 6:
doc["type"] = "BCON"; // iBeacon protocol
break;
case 7:
doc["type"] = "ACEL"; // acceleration
break;
case 8:
doc["type"] = "BATT"; // battery
break;
case 9:
doc["type"] = "PLANT"; // plant sensors
break;
case 10:
doc["type"] = "TIRE"; // tire pressure monitoring system
break;
case 11:
doc["type"] = "BODY"; // health monitoring devices
break;
case 12:
doc["type"] = "ENRG"; // energy monitoring devices
break;
case 13:
doc["type"] = "WCVR"; // window covering
break;
case 14:
doc["type"] = "ACTR"; // ON/OFF actuators
break;
case 15:
doc["type"] = "AIR"; // air environmental monitoring devices
break;
case 16:
doc["type"] = "TRACK"; // Bluetooth tracker
break;
case 17:
doc["type"] = "BTN"; // Button
break;
case 254:
doc["type"] = "RMAC"; // random MAC address devices
break;
case 255:
doc["type"] = "UNIQ"; // unique devices
break;
}
if (!doc["type"].isNull()) {
jsondata["type"] = doc["type"];
} else {
DEBUG_PRINT("ERROR - no valid device type present in model tag property\n");
}
// Octet Byte[1] bits[7-0] - True/False tags
if (tagstring.length() >= 4) {
// bits[3-0]
uint8_t data = getBinaryData(tagstring[3]);
if (((data >> 0) & 0x01) == 1) { // CIDC - NOT Company ID Compliant
doc.add("cidc");
doc["cidc"] = false;
jsondata["cidc"] = doc["cidc"];
}
if (((data >> 1) & 0x01) == 1) { // Active Scanning required
doc.add("acts");
doc["acts"] = true;
jsondata["acts"] = doc["acts"];
}
if (((data >> 2) & 0x01) == 1) { // Continuous Scanning required
doc.add("cont");
doc["cont"] = true;
jsondata["cont"] = doc["cont"];
}
if (((data >> 3) & 0x01) == 1) { // Presence tracking conpatible
doc.add("track");
doc["track"] = true;
jsondata["track"] = doc["track"];
}
}
// Octet Byte[2] - Encryption Model
if (tagstring.length() >= 6) {
int encrmode = strtol(tagstring.substr(4, 2).c_str(), NULL, 16);
DEBUG_PRINT("encrmode: %d\n", encrmode);
if (encrmode > 0) {
doc.add("encr");
doc["encr"] = encrmode;
jsondata["encr"] = doc["encr"];
}
}
}
JsonObject properties = doc["properties"];
/* Loop through all the devices properties and extract the values */
for (JsonPair kv : properties) {
JsonObject prop = kv.value().as<JsonObject>();
if (checkPropCondition(prop["condition"], svc_data, mfg_data)) {
JsonArray decoder = prop["decoder"];
if (strstr((const char*)decoder[0], "value_from_hex_data") != nullptr) {
const char* src = svc_data;
if (strstr((const char*)decoder[1], MFG_DATA)) {
src = mfg_data;
}
/* use a double for all values and cast later if required */
double temp_val;
static double cal_val = 0;
if (data_index_is_valid(src, decoder[2].as<int>(), decoder[3].as<int>())) {
decoder_function dec_fun = &TheengsDecoder::value_from_hex_string;
if (strstr((const char*)decoder[0], "bf") != nullptr) {
dec_fun = &TheengsDecoder::bf_value_from_hex_string;
}
temp_val = (this->*dec_fun)(src, decoder[2].as<int>(),
decoder[3].as<int>(),
decoder[4].as<bool>(),
decoder[5].isNull() ? true : decoder[5].as<bool>(),
decoder[6].isNull() ? false : decoder[6].as<bool>());
} else {
break;
}
/* Do any required post processing of the value */
if (prop.containsKey("post_proc")) {
JsonArray post_proc = prop["post_proc"];
for (unsigned int i = 0; i < post_proc.size(); i += 2) {
if (cal_val && post_proc[i + 1].as<const char*>() != NULL &&
strncmp(post_proc[i + 1].as<const char*>(), ".cal", 4) == 0) {
switch (*post_proc[i].as<const char*>()) {
case '/':
temp_val /= cal_val;
break;
case '*':
temp_val *= cal_val;
break;
case '-':
temp_val -= cal_val;
break;
case '+':
temp_val += cal_val;
break;
}
} else {
if (strlen(post_proc[i].as<const char*>()) == 1) {
switch (*post_proc[i].as<const char*>()) {
case '/':
temp_val /= post_proc[i + 1].as<double>();
break;
case '*':
temp_val *= post_proc[i + 1].as<double>();
break;
case '-':
temp_val -= post_proc[i + 1].as<double>();
break;
case '+':
temp_val += post_proc[i + 1].as<double>();
break;
case '%': {
long val = (long)temp_val;
temp_val = val % post_proc[i + 1].as<long>();
break;
}
case '<': {
long val = (long)temp_val;
temp_val = val << post_proc[i + 1].as<unsigned int>();
break;
}
case '>': {
long val = (long)temp_val;
temp_val = val >> post_proc[i + 1].as<unsigned int>();
break;
}
case '!': {
bool val = (bool)temp_val;
temp_val = !val;
break;
}
case '&': {
long long val = (long long)temp_val;
temp_val = val & post_proc[i + 1].as<unsigned int>();
break;
}
}
} else if (strncmp(post_proc[i].as<const char*>(), "max", 3) == 0) {
if (temp_val > post_proc[i + 1].as<double>()) {
temp_val = post_proc[i + 1].as<double>();
}
} else if (strncmp(post_proc[i].as<const char*>(), "min", 3) == 0) {
if (temp_val < post_proc[i + 1].as<double>()) {
temp_val = post_proc[i + 1].as<double>();
}
}
}
}
}
/* If there is any underscores at the beginning of the property name, there is multiple
* properties of this type, we need remove the underscores for creating the key.
*/
std::string _key = sanitizeJsonKey(kv.key().c_str());
/* calculation values extracted from data are not added to the decoded output
* instead we store them temporarily to use with the next data properties.
*/
if (_key == ".cal") {
cal_val = temp_val;
continue;
}
/* Cast to a different value type if specified */
if (prop.containsKey("is_bool")) {
jsondata[_key] = (bool)temp_val;
} else {
jsondata[_key] = temp_val;
}
/* If the property is temp in C, make sure to convert and add temp in F */
if (_key.find("tempc", 0, 5) != std::string::npos) {
double tc = jsondata[_key];
_key[4] = 'f';
jsondata[_key] = tc * 1.8 + 32;
_key[4] = 'c';
}
/* If the property is with suffix _cm, make sure to convert and add length in inches */
if (_key.find("_cm", _key.length() - 3, 3) != std::string::npos) {
double tc = jsondata[_key];
_key.replace(_key.length() - 3, 3, "_in");
jsondata[_key] = tc / 2.54;
_key.replace(_key.length() - 3, 3, "_cm");
}
success = i_main;
DEBUG_PRINT("found value = %s : %.2f\n", _key.c_str(), jsondata[_key].as<double>());
} else if (strstr((const char*)decoder[0], "static_value") != nullptr) {
if (strstr((const char*)decoder[0], "bit") != nullptr) {
JsonArray staticbitdecoder = prop["decoder"];
const char* data_src = nullptr;
if (svc_data && strstr((const char*)staticbitdecoder[1], SVC_DATA) != nullptr) {
data_src = svc_data;
} else if (mfg_data && strstr((const char*)staticbitdecoder[1], MFG_DATA) != nullptr) {
data_src = mfg_data;
}
char ch = *(data_src + staticbitdecoder[2].as<int>());
uint8_t data = getBinaryData(ch);
uint8_t shift = staticbitdecoder[3].as<uint8_t>();
int x = 4 + ((data >> shift) & 0x01);
jsondata[sanitizeJsonKey(kv.key().c_str())] = staticbitdecoder[x];
success = i_main;
} else {
jsondata[sanitizeJsonKey(kv.key().c_str())] = decoder[1];
success = i_main;
}
} else if (strstr((const char*)decoder[0], "string_from_hex_data") != nullptr) {
const char* src = svc_data;
if (strstr((const char*)decoder[1], MFG_DATA)) {
src = mfg_data;
}
std::string value(src + decoder[2].as<int>(), decoder[3].as<int>());
/* Lookup table */
if (prop.containsKey("lookup")) {
JsonArray lookup = prop["lookup"];
for (unsigned int i = 0; i < lookup.size(); i += 2) {
if (lookup[i].as<std::string>() == value) {
value = lookup[i + 1].as<std::string>();
jsondata[sanitizeJsonKey(kv.key().c_str())] = value;
success = i_main;
break;
}
}
} else {
jsondata[sanitizeJsonKey(kv.key().c_str())] = value;
success = i_main;
}
} else if (strstr((const char*)decoder[0], "mac_from_hex_data") != nullptr) {
const char* src = svc_data;
if (strstr((const char*)decoder[1], MFG_DATA)) {
src = mfg_data;
}
std::string value(src + decoder[2].as<int>(), 12);
// reverse MAC
if (strstr((const char*)decoder[0], "revmac_from_hex_data") != nullptr) {
const char* mac_string = nullptr;
mac_string = value.c_str();
char* reverse_mac_string = (char*)malloc(strlen(mac_string) + 1);
reverse_hex_data(mac_string, reverse_mac_string, 12);
value = reverse_mac_string;
free(reverse_mac_string);
}
// upper case MAC
for (int x = 0; x <= 12; x++) {
value[x] = toupper(value[x]);
}
// add colons
for (int x = 2; x <= 14; x += 3) {
value.insert(x, 1, ':');
}
jsondata[sanitizeJsonKey(kv.key().c_str())] = value;
success = i_main;
}
}
}
return success;
}
}
return success;
}
int getTheengModel(JsonDocument& doc, const char* model_id) {
int mid_len = strlen(model_id);
for (auto i = 0; i < sizeof(_devices) / sizeof(_devices[0]); ++i) {
DeserializationError error = deserializeJson(doc, _devices[i][0]);
if (error) {
DEBUG_PRINT("deserializeJson() failed: %s\n", error.c_str());
#ifdef UNIT_TESTING
assert(0);
#endif
break;
}
#ifdef UNIT_TESTING
if (doc.memoryUsage() > peakDocSize)
peakDocSize = doc.memoryUsage();
#endif
if (doc.containsKey("model_id")) {
if (strlen(doc["model_id"].as<const char*>()) != mid_len) {
continue;
}
if (!strncmp(model_id, doc["model_id"], mid_len)) {
return i;
}
}
}
return -1;
}
std::string getTheengProperties(int mod_index) {
return (mod_index < 0 || mod_index >= BLE_ID_NUM::BLE_ID_MAX) ? "" : _devices[mod_index][1];
}
std::string getTheengProperties(const char* model_id) {
#ifdef UNIT_TESTING
DynamicJsonDocument doc(TEST_MAX_DOC);
#else
DynamicJsonDocument doc(m_docMax);
#endif
int mod_index = getTheengModel(doc, model_id);
return (mod_index < 0 || mod_index >= BLE_ID_NUM::BLE_ID_MAX) ? "" : _devices[mod_index][1];
}
std::string getTheengAttribute(int model_id, const char* attribute) {
#ifdef UNIT_TESTING
DynamicJsonDocument doc(TEST_MAX_DOC);
#else
DynamicJsonDocument doc(m_docMax);
#endif
std::string ret_attr = "";
if (model_id >= 0 && model_id < BLE_ID_NUM::BLE_ID_MAX) {
DeserializationError error = deserializeJson(doc, _devices[model_id][0]);
if (error) {
DEBUG_PRINT("deserializeJson() failed: %s\n", error.c_str());
#ifdef UNIT_TESTING
assert(0);
#endif
} else if (!doc[attribute].isNull()) {
ret_attr = doc[attribute].as<std::string>();
}
}
return ret_attr;
}
std::string getTheengAttribute(const char* model_id, const char* attribute) {
#ifdef UNIT_TESTING
DynamicJsonDocument doc(TEST_MAX_DOC);
#else
DynamicJsonDocument doc(m_docMax);
#endif
int mod_index = getTheengModel(doc, model_id);
if (mod_index >= 0 && !doc[attribute].isNull()) {
return std::string(doc[attribute].as<std::string>());
}
return "";
}
void setMinServiceDataLen(size_t len) {
m_minSvcDataLen = len;
}
void setMinManufacturerDataLen(size_t len) {
m_minMfgDataLen = len;
}
#ifdef UNIT_TESTING
int testDocMax() {
if (peakDocSize > m_docMax) {
DEBUG_PRINT("Error: peak doc size > max; peak: %lu, max: %lu\n", peakDocSize, m_docMax);
}
return m_docMax - peakDocSize;
}
#endif
};
#endif
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