90d450368c
* nfc: allocate nfc device on heap * nfc: rework save with flipper file format * nfc: rework nfc device load with flipper file * nfc: save AID length and data * nfc: remove file worker usage * nfc: format sources * nfc: rework with flipper file format addons * assets: update EMV resources with flipper file format * nfc: rework EMV resources parsing with new file format * assets: fix EMV AID file format * nfc: fix nfc_device usage Co-authored-by: あく <alleteam@gmail.com>
81 lines
2.2 KiB
C
Executable File
81 lines
2.2 KiB
C
Executable File
#include "nfc_emv_parser.h"
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#include <lib/flipper_file/flipper_file.h>
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static const char* nfc_resources_header = "Flipper EMV resources";
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static const uint32_t nfc_resources_file_version = 1;
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static bool nfc_emv_parser_search_data(
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Storage* storage,
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const char* file_name,
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string_t key,
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string_t data) {
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bool parsed = false;
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FlipperFile* file = flipper_file_alloc(storage);
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string_t temp_str;
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string_init(temp_str);
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do {
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// Open file
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if(!flipper_file_open_existing(file, file_name)) break;
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// Read file header and version
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uint32_t version = 0;
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if(!flipper_file_read_header(file, temp_str, &version)) break;
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if(string_cmp_str(temp_str, nfc_resources_header) ||
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(version != nfc_resources_file_version))
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break;
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if(!flipper_file_read_string(file, string_get_cstr(key), data)) break;
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parsed = true;
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} while(false);
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string_clear(temp_str);
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flipper_file_free(file);
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return parsed;
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}
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bool nfc_emv_parser_get_aid_name(
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Storage* storage,
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uint8_t* aid,
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uint8_t aid_len,
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string_t aid_name) {
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furi_assert(storage);
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bool parsed = false;
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string_t key;
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string_init(key);
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for(uint8_t i = 0; i < aid_len; i++) {
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string_cat_printf(key, "%02X", aid[i]);
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}
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if(nfc_emv_parser_search_data(storage, "/ext/nfc/emv/aid.nfc", key, aid_name)) {
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parsed = true;
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}
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string_clear(key);
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return parsed;
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}
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bool nfc_emv_parser_get_country_name(
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Storage* storage,
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uint16_t country_code,
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string_t country_name) {
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bool parsed = false;
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string_t key;
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string_init_printf(key, "%04X", country_code);
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if(nfc_emv_parser_search_data(storage, "/ext/nfc/emv/country_code.nfc", key, country_name)) {
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parsed = true;
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}
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string_clear(key);
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return parsed;
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}
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bool nfc_emv_parser_get_currency_name(
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Storage* storage,
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uint16_t currency_code,
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string_t currency_name) {
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bool parsed = false;
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string_t key;
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string_init_printf(key, "%04X", currency_code);
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if(nfc_emv_parser_search_data(storage, "/ext/nfc/emv/currency_code.nfc", key, currency_name)) {
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parsed = true;
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}
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string_clear(key);
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return parsed;
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}
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