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#include "nfc_emv_parser.h"
#include <flipper_format/flipper_format.h>
static const char* nfc_resources_header = "Flipper EMV resources";
static const uint32_t nfc_resources_file_version = 1;
static bool nfc_emv_parser_search_data(
Storage* storage,
const char* file_name,
string_t key,
string_t data) {
bool parsed = false;
FlipperFormat* file = flipper_format_file_alloc(storage);
string_t temp_str;
string_init(temp_str);
do {
// Open file
if(!flipper_format_file_open_existing(file, file_name)) break;
// Read file header and version
uint32_t version = 0;
if(!flipper_format_read_header(file, temp_str, &version)) break;
if(string_cmp_str(temp_str, nfc_resources_header) ||
(version != nfc_resources_file_version))
break;
if(!flipper_format_read_string(file, string_get_cstr(key), data)) break;
parsed = true;
} while(false);
string_clear(temp_str);
flipper_format_free(file);
return parsed;
}
bool nfc_emv_parser_get_aid_name(
Storage* storage,
uint8_t* aid,
uint8_t aid_len,
string_t aid_name) {
furi_assert(storage);
bool parsed = false;
string_t key;
string_init(key);
for(uint8_t i = 0; i < aid_len; i++) {
string_cat_printf(key, "%02X", aid[i]);
}
if(nfc_emv_parser_search_data(storage, "/ext/nfc/assets/aid.nfc", key, aid_name)) {
parsed = true;
}
string_clear(key);
return parsed;
}
bool nfc_emv_parser_get_country_name(
Storage* storage,
uint16_t country_code,
string_t country_name) {
bool parsed = false;
string_t key;
string_init_printf(key, "%04X", country_code);
if(nfc_emv_parser_search_data(storage, "/ext/nfc/assets/country_code.nfc", key, country_name)) {
parsed = true;
}
string_clear(key);
return parsed;
}
bool nfc_emv_parser_get_currency_name(
Storage* storage,
uint16_t currency_code,
string_t currency_name) {
bool parsed = false;
string_t key;
string_init_printf(key, "%04X", currency_code);
if(nfc_emv_parser_search_data(
storage, "/ext/nfc/assets/currency_code.nfc", key, currency_name)) {
parsed = true;
}
string_clear(key);
return parsed;
}
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