unleashed-firmware/applications/main/nfc/helpers/nfc_supported_cards.c
gornekich d92b0a82cc
NFC refactoring (#3050)
"A long time ago in a galaxy far, far away...." we started NFC subsystem refactoring.

Starring:

- @gornekich - NFC refactoring project lead, architect, senior developer
- @gsurkov - architect, senior developer
- @RebornedBrain - senior developer

Supporting roles:

- @skotopes, @DrZlo13, @hedger - general architecture advisors, code review
- @Astrrra, @doomwastaken, @Hellitron, @ImagineVagon333 - quality assurance

Special thanks:

@bettse, @pcunning, @nxv, @noproto, @AloneLiberty and everyone else who has been helping us all this time and contributing valuable knowledges, ideas and source code.
2023-10-24 12:08:09 +09:00

147 lines
4.5 KiB
C

#include "nfc_supported_cards.h"
#include "../plugins/supported_cards/nfc_supported_card_plugin.h"
#include <flipper_application/flipper_application.h>
#include <flipper_application/plugins/plugin_manager.h>
#include <loader/firmware_api/firmware_api.h>
#include <furi.h>
#include <path.h>
#define TAG "NfcSupportedCards"
#define NFC_SUPPORTED_CARDS_PLUGINS_PATH APP_DATA_PATH("plugins")
#define NFC_SUPPORTED_CARDS_PLUGIN_SUFFIX "_parser.fal"
typedef struct {
Storage* storage;
File* directory;
FuriString* file_path;
char file_name[256];
FlipperApplication* app;
} NfcSupportedCards;
static NfcSupportedCards* nfc_supported_cards_alloc() {
NfcSupportedCards* instance = malloc(sizeof(NfcSupportedCards));
instance->storage = furi_record_open(RECORD_STORAGE);
instance->directory = storage_file_alloc(instance->storage);
instance->file_path = furi_string_alloc();
if(!storage_dir_open(instance->directory, NFC_SUPPORTED_CARDS_PLUGINS_PATH)) {
FURI_LOG_D(TAG, "Failed to open directory: %s", NFC_SUPPORTED_CARDS_PLUGINS_PATH);
}
return instance;
}
static void nfc_supported_cards_free(NfcSupportedCards* instance) {
if(instance->app) {
flipper_application_free(instance->app);
}
furi_string_free(instance->file_path);
storage_dir_close(instance->directory);
storage_file_free(instance->directory);
furi_record_close(RECORD_STORAGE);
free(instance);
}
static const NfcSupportedCardsPlugin*
nfc_supported_cards_get_next_plugin(NfcSupportedCards* instance) {
const NfcSupportedCardsPlugin* plugin = NULL;
do {
if(!storage_file_is_open(instance->directory)) break;
if(!storage_dir_read(
instance->directory, NULL, instance->file_name, sizeof(instance->file_name)))
break;
furi_string_set(instance->file_path, instance->file_name);
if(!furi_string_end_with_str(instance->file_path, NFC_SUPPORTED_CARDS_PLUGIN_SUFFIX))
continue;
path_concat(NFC_SUPPORTED_CARDS_PLUGINS_PATH, instance->file_name, instance->file_path);
if(instance->app) flipper_application_free(instance->app);
instance->app = flipper_application_alloc(instance->storage, firmware_api_interface);
if(flipper_application_preload(instance->app, furi_string_get_cstr(instance->file_path)) !=
FlipperApplicationPreloadStatusSuccess)
continue;
if(!flipper_application_is_plugin(instance->app)) continue;
if(flipper_application_map_to_memory(instance->app) != FlipperApplicationLoadStatusSuccess)
continue;
const FlipperAppPluginDescriptor* descriptor =
flipper_application_plugin_get_descriptor(instance->app);
if(descriptor == NULL) continue;
if(strcmp(descriptor->appid, NFC_SUPPORTED_CARD_PLUGIN_APP_ID) != 0) continue;
if(descriptor->ep_api_version != NFC_SUPPORTED_CARD_PLUGIN_API_VERSION) continue;
plugin = descriptor->entry_point;
} while(plugin == NULL); //-V654
return plugin;
}
bool nfc_supported_cards_read(NfcDevice* device, Nfc* nfc) {
furi_assert(device);
furi_assert(nfc);
bool card_read = false;
NfcSupportedCards* supported_cards = nfc_supported_cards_alloc();
do {
const NfcSupportedCardsPlugin* plugin =
nfc_supported_cards_get_next_plugin(supported_cards);
if(plugin == NULL) break; //-V547
const NfcProtocol protocol = nfc_device_get_protocol(device); //-V779
if(plugin->protocol != protocol) continue;
if(plugin->verify) {
if(!plugin->verify(nfc)) continue;
}
if(plugin->read) {
card_read = plugin->read(nfc, device);
}
} while(!card_read);
nfc_supported_cards_free(supported_cards);
return card_read;
}
bool nfc_supported_cards_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
furi_assert(parsed_data);
bool parsed = false;
NfcSupportedCards* supported_cards = nfc_supported_cards_alloc();
do {
const NfcSupportedCardsPlugin* plugin =
nfc_supported_cards_get_next_plugin(supported_cards);
if(plugin == NULL) break; //-V547
const NfcProtocol protocol = nfc_device_get_protocol(device); //-V779
if(plugin->protocol != protocol) continue;
if(plugin->parse) {
parsed = plugin->parse(device, parsed_data);
}
} while(!parsed);
nfc_supported_cards_free(supported_cards);
return parsed;
}