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NFC: Plaintain parser fix

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by mxcdoam
https://github.com/flipperdevices/flipperzero-firmware/pull/3975/files
This commit is contained in:
MX 2024-10-29 02:28:33 +03:00
parent e87356af72
commit ed57ddb14b
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1 changed files with 77 additions and 7 deletions
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84
applications/main/nfc/plugins/supported_cards/plantain.c
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@ -201,8 +201,9 @@ static bool plantain_read(Nfc* nfc, NfcDevice* device) {
static bool plantain_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
size_t uid_len = 0;
const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
bool parsed = false;
@ -220,12 +221,30 @@ static bool plantain_parse(const NfcDevice* device, FuriString* parsed_data) {
if(key != cfg.keys[cfg.data_sector].a) break;
furi_string_printf(parsed_data, "\e#Plantain card\n");
const uint8_t* temp_ptr = &uid[0];
// UID is read from last to first byte
uint8_t card_number_tmp[uid_len];
if(uid_len == 4) {
for(size_t i = 0; i < 4; i++) {
card_number_tmp[i] = temp_ptr[3 - i];
}
} else if(uid_len == 7) {
for(size_t i = 0; i < 7; i++) {
card_number_tmp[i] = temp_ptr[6 - i];
}
} else {
break;
}
//UID is converted to a card number
uint64_t card_number = 0;
for(size_t i = 0; i < 7; i++) {
card_number = (card_number << 8) | data->block[0].data[6 - i];
for(size_t i = 0; i < uid_len; i++) {
card_number = (card_number << 8) | card_number_tmp[i];
}
// Print card number with 4-digit groups
// Print card number with 4-digit groups. "3" in "3078" denotes a ticket type "3 - full ticket", will differ on discounted cards.
furi_string_cat_printf(parsed_data, "Number: ");
FuriString* card_number_s = furi_string_alloc();
furi_string_cat_printf(card_number_s, "%llu", card_number);
@ -237,6 +256,7 @@ static bool plantain_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_string_push_back(tmp_s, ' ');
}
furi_string_cat_printf(parsed_data, "%s\n", furi_string_get_cstr(tmp_s));
// this works for 2K Plantain
if(data->type == MfClassicType1k) {
//balance
uint32_t balance = 0;
@ -290,20 +310,70 @@ static bool plantain_parse(const NfcDevice* device, FuriString* parsed_data) {
last_payment_date.year,
last_payment_date.hour,
last_payment_date.minute);
//payment summ
//payment amount. This needs to be investigated more, currently it shows incorrect amount on some cards.
uint16_t last_payment = (data->block[18].data[9] << 8) | data->block[18].data[8];
furi_string_cat_printf(parsed_data, "Amount: %d rub", last_payment / 100);
furi_string_free(card_number_s);
furi_string_free(tmp_s);
//This is for 4K Plantains.
} else if(data->type == MfClassicType4k) {
//balance
uint32_t balance = 0;
for(uint8_t i = 0; i < 4; i++) {
balance = (balance << 8) | data->block[16].data[3 - i];
}
furi_string_cat_printf(parsed_data, "Balance: %ld rub\n", balance / 100);
//trips
uint8_t trips_metro = data->block[36].data[0];
uint8_t trips_ground = data->block[36].data[1];
uint8_t trips_metro = data->block[21].data[0];
uint8_t trips_ground = data->block[21].data[1];
furi_string_cat_printf(parsed_data, "Trips: %d\n", trips_metro + trips_ground);
//trip time
uint32_t last_trip_timestamp = 0;
for(uint8_t i = 0; i < 3; i++) {
last_trip_timestamp = (last_trip_timestamp << 8) | data->block[21].data[4 - i];
}
DateTime last_trip = {0};
from_minutes_to_datetime(last_trip_timestamp + 24 * 60, &last_trip, 2010);
furi_string_cat_printf(
parsed_data,
"Trip start: %02d.%02d.%04d %02d:%02d\n",
last_trip.day,
last_trip.month,
last_trip.year,
last_trip.hour,
last_trip.minute);
//validator
uint16_t validator = (data->block[20].data[5] << 8) | data->block[20].data[4];
furi_string_cat_printf(parsed_data, "Validator: %d\n", validator);
//tariff
uint16_t fare = (data->block[20].data[7] << 8) | data->block[20].data[6];
furi_string_cat_printf(parsed_data, "Tariff: %d rub\n", fare / 100);
//trips in metro
furi_string_cat_printf(parsed_data, "Trips (Metro): %d\n", trips_metro);
//trips on ground
furi_string_cat_printf(parsed_data, "Trips (Ground): %d\n", trips_ground);
//last payment
uint32_t last_payment_timestamp = 0;
for(uint8_t i = 0; i < 3; i++) {
last_payment_timestamp = (last_payment_timestamp << 8) |
data->block[18].data[4 - i];
}
DateTime last_payment_date = {0};
from_minutes_to_datetime(last_payment_timestamp + 24 * 60, &last_payment_date, 2010);
furi_string_cat_printf(
parsed_data,
"Last pay: %02d.%02d.%04d %02d:%02d\n",
last_payment_date.day,
last_payment_date.month,
last_payment_date.year,
last_payment_date.hour,
last_payment_date.minute);
//payment amount
uint16_t last_payment = (data->block[18].data[9] << 8) | data->block[18].data[8];
furi_string_cat_printf(parsed_data, "Amount: %d rub", last_payment / 100);
furi_string_free(card_number_s);
furi_string_free(tmp_s);
}
parsed = true;
} while(false);