flipperzero-firmware/applications/nfc/helpers/nfc_emv_parser.c
gornekich ecff31d228
[FL-1643] NFC emv assets (#661)
* assets: add EMV AID table for NFC app
* file-worker: add searching for value by the key
* nfc: add emv parser helpers
* assets: add country and currency codes
* nfc: add country and currency code parsing
* emv_decoder: add country and currency code support
* nfc: add AID. currency and country display
* nfc: rework bank_card view
* nfc: add currency and country save
* assets: change emv chip asset
* nfc: change asset in bank card
* gui: add frame element to widget
* nfc: add bank card frame, add documentation
* rfal: fix long APDU command emulation
* nfc: fix typos
* Scripts ReadMe: assets delivery command

Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
2021-08-20 22:56:43 +03:00

50 lines
1.5 KiB
C
Executable File

#include "nfc_emv_parser.h"
#include <file-worker.h>
static bool
nfc_emv_parser_get_value(const char* file_path, string_t key, char delimiter, string_t value) {
bool found = false;
FileWorker* file_worker = file_worker_alloc(true);
if(file_worker_open(file_worker, file_path, FSAM_READ, FSOM_OPEN_EXISTING)) {
if(file_worker_get_value_from_key(file_worker, key, delimiter, value)) {
found = true;
}
}
file_worker_close(file_worker);
file_worker_free(file_worker);
return found;
}
bool nfc_emv_parser_get_aid_name(uint8_t* aid, uint8_t aid_len, string_t aid_name) {
bool result = false;
string_t key;
string_init(key);
for(uint8_t i = 0; i < aid_len; i++) {
string_cat_printf(key, "%02X", aid[i]);
}
result = nfc_emv_parser_get_value("/ext/nfc/emv/aid.nfc", key, ' ', aid_name);
string_clear(key);
return result;
}
bool nfc_emv_parser_get_country_name(uint16_t country_code, string_t country_name) {
bool result = false;
string_t key;
string_init_printf(key, "%04X", country_code);
result = nfc_emv_parser_get_value("/ext/nfc/emv/country_code.nfc", key, ' ', country_name);
string_clear(key);
return result;
}
bool nfc_emv_parser_get_currency_name(uint16_t currency_code, string_t currency_name) {
bool result = false;
string_t key;
string_init_printf(key, "%04X", currency_code);
result = nfc_emv_parser_get_value("/ext/nfc/emv/currency_code.nfc", key, ' ', currency_name);
string_clear(key);
return result;
}