unleashed-firmware/applications/main/nfc/helpers/nfc_emv_parser.c
Sergey Gavrilov 4bf29827f8
M*LIB: non-inlined strings, FuriString primitive (#1795)
* Quicksave 1
* Header stage complete
* Source stage complete
* Lint & merge fixes
* Includes
* Documentation step 1
* FBT: output free size considering BT STACK
* Documentation step 2
* py lint
* Fix music player plugin
* unit test stage 1: string allocator, mem, getters, setters, appends, compare, search.
* unit test: string equality
* unit test: string replace
* unit test: string start_with, end_with
* unit test: string trim
* unit test: utf-8
* Rename
* Revert fw_size changes
* Simplify CLI backspace handling
* Simplify CLI character insert
* Merge fixes
* Furi: correct filenaming and spelling
* Bt: remove furi string include

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-10-06 00:15:23 +09:00

82 lines
2.4 KiB
C

#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,
FuriString* key,
FuriString* data) {
bool parsed = false;
FlipperFormat* file = flipper_format_file_alloc(storage);
FuriString* temp_str;
temp_str = furi_string_alloc();
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(furi_string_cmp_str(temp_str, nfc_resources_header) ||
(version != nfc_resources_file_version))
break;
if(!flipper_format_read_string(file, furi_string_get_cstr(key), data)) break;
parsed = true;
} while(false);
furi_string_free(temp_str);
flipper_format_free(file);
return parsed;
}
bool nfc_emv_parser_get_aid_name(
Storage* storage,
uint8_t* aid,
uint8_t aid_len,
FuriString* aid_name) {
furi_assert(storage);
bool parsed = false;
FuriString* key;
key = furi_string_alloc();
for(uint8_t i = 0; i < aid_len; i++) {
furi_string_cat_printf(key, "%02X", aid[i]);
}
if(nfc_emv_parser_search_data(storage, EXT_PATH("nfc/assets/aid.nfc"), key, aid_name)) {
parsed = true;
}
furi_string_free(key);
return parsed;
}
bool nfc_emv_parser_get_country_name(
Storage* storage,
uint16_t country_code,
FuriString* country_name) {
bool parsed = false;
FuriString* key;
key = furi_string_alloc_printf("%04X", country_code);
if(nfc_emv_parser_search_data(
storage, EXT_PATH("nfc/assets/country_code.nfc"), key, country_name)) {
parsed = true;
}
furi_string_free(key);
return parsed;
}
bool nfc_emv_parser_get_currency_name(
Storage* storage,
uint16_t currency_code,
FuriString* currency_name) {
bool parsed = false;
FuriString* key;
key = furi_string_alloc_printf("%04X", currency_code);
if(nfc_emv_parser_search_data(
storage, EXT_PATH("nfc/assets/currency_code.nfc"), key, currency_name)) {
parsed = true;
}
furi_string_free(key);
return parsed;
}