bool getPngAsBase64(const Tile& tile,const std::vector<RoadSegment>& segments,std::string& base64_str)
{
agg::int8u* buffer = new agg::int8u[tile.getByteSize()];
memset(buffer, 0 , tile.getByteSize());
agg::rendering_buffer rbuf = agg::rendering_buffer(buffer,
tile.getImgWidth(), tile.getImgHeight(), tile.getImgWidth() * tile.getBytesPerPixel());
render(tile, segments, rbuf);
getBase64String(rbuf, base64_str);
delete [] buffer;
return true;
}
int main(int argc, char **argv) {
int res;
nfc_connstring devices[8];
size_t device_count;
nfc_context *nfcctx;
char *uid = NULL;
init_crypto_state();
nfc_init(&nfcctx);
device_count = nfc_list_devices(nfcctx,devices,8);
if (device_count <= 0) {
std::cerr << "No device found" << std::endl;
}
device = nfc_open(nfcctx, devices[0]);
tags = freefare_get_tags(device);
if (tags[0] == NULL) {
std::cerr << "No tag on device" << std::endl;
exit(1);
}
for (int i = 0; tags[i]; i++) {
if (freefare_get_tag_type(tags[i]) == CLASSIC_1K) {
tag = tags[i];
res = mifare_classic_connect(tag);
if (res != 0) {
std::cout << "Error connecting to MiFare Classic" << std::endl;
exit(1);
}
std::cout << "Connected to MiFare Classic" << std::endl;
uid = freefare_get_tag_uid(tag);
break;
}
}
std::cout << "UID: " << uid << std::endl;
MifareClassicKey *keyA = (MifareClassicKey *)get_random_bytes(6);
std::cout << "Key A: ";
print_hex(*keyA,6);
char *b64KeyA = getBase64String((char *)keyA,6);
std::cout << b64KeyA << std::endl;
std::cout << "Key B: ";
MifareClassicKey *keyB = (MifareClassicKey *)get_random_bytes(6);
print_hex(*keyB,6);
char *b64KeyB = getBase64String((char *)keyB,6);
bool addedToServer = addCard(uid,b64KeyA,b64KeyB);
if (!addedToServer) {
printf("Not added to server\n");
}
// Authenticate with default key to make changes
MifareClassicBlockNumber lastTrailer = mifare_classic_sector_last_block(15);
res = mifare_classic_authenticate(tag,lastTrailer,defaultKey,MFC_KEY_A);
if (res != 0) {
printf("Could not authenticate with default key.. card already formatted?\n");
return -1;
}
MifareClassicBlockNumber firstBlock = mifare_classic_sector_first_block(15);
res = mifare_classic_init_value(tag,firstBlock,SECTOR_15_BLOCK_0_INIT,firstBlock);
if (res != 0) {
printf("Could not init value block %d\n",firstBlock);
}
MifareClassicBlock trailerBlock;
mifare_classic_trailer_block(&trailerBlock,*keyA,0x03,0x00,0x00,0x04,0x00, *keyB);
print_hex(trailerBlock, sizeof(MifareClassicBlock));
res = mifare_classic_write(tag,lastTrailer,trailerBlock);
if (res != 0) {
printf("Could not write sector 15 trailer. STOP\n");
return -1;
}
MifareClassicBlock normalTrailerBlock;
mifare_classic_trailer_block(&normalTrailerBlock,*keyA,0x00,0x00,0x00,0x04,0x00,*keyB);
printf("Writing normal trailer block ");
print_hex(&normalTrailerBlock[0], sizeof(MifareClassicBlock));
MifareClassicSectorNumber sector;
for(sector=0; sector<15;sector++) {
MifareClassicBlockNumber trailerBlockNumber = mifare_classic_sector_last_block(sector);
res = mifare_classic_authenticate(tag,trailerBlockNumber,defaultKey,MFC_KEY_A);
if (res != 0) {
printf("Could not authenticate with default key.. card already formatted?\n");
return -1;
}
res = mifare_classic_write(tag,trailerBlockNumber,normalTrailerBlock);
if (res != 0) {
printf("Could not write trailer block for sector %d\n",sector);
return -1;
} else {
printf("Wrote trailer block for sector %d\n",sector);
}
}
free(keyA);
free(keyB);
free(b64KeyA);
free(b64KeyB);
free(uid);
freefare_free_tags(tags);
nfc_close(device);
}
