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add magic

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This commit is contained in:
who asks? 2024-07-18 15:36:57 -06:00
parent 418adb7857
commit 54dab2e121
1 changed files with 134 additions and 84 deletions
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218
src/wallet/wallet_rpc_server.cpp
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@ -56,6 +56,8 @@ using namespace epee;
#include "rpc/core_rpc_server_commands_defs.h"
#include "daemonizer/daemonizer.h"
#define KEY_IMAGE_EXPORT_FILE_MAGIC "Monero key image export\003"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "wallet.rpc"
@ -2951,102 +2953,150 @@ namespace tools
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool wallet_rpc_server::on_export_encrypted_key_images(const wallet_rpc::COMMAND_RPC_EXPORT_ENCRYPTED_KEY_IMAGES::request& req, wallet_rpc::COMMAND_RPC_EXPORT_ENCRYPTED_KEY_IMAGES::response& res, epee::json_rpc::error& er, const connection_context *ctx)
/bool wallet_rpc_server::on_export_encrypted_key_images(const wallet_rpc::COMMAND_RPC_EXPORT_ENCRYPTED_KEY_IMAGES::request& req, wallet_rpc::COMMAND_RPC_EXPORT_ENCRYPTED_KEY_IMAGES::response& res, epee::json_rpc::error& er, const connection_context *ctx)
{
if (!m_wallet) return not_open(er);
try
{
if (!m_wallet) return not_open(er);
std::pair<uint64_t, std::vector<std::pair<crypto::key_image, crypto::signature>>> ski = m_wallet->export_key_images(req.all);
res.offset = ski.first;
std::string data;
const cryptonote::account_public_address &keys = m_wallet->get_account().get_keys().m_account_address;
data.reserve(4 + sizeof(crypto::public_key) * 2 + ski.second.size() * (sizeof(crypto::key_image) + sizeof(crypto::signature)));
data.resize(4);
data[0] = res.offset & 0xff;
data[1] = (res.offset >> 8) & 0xff;
data[2] = (res.offset >> 16) & 0xff;
data[3] = (res.offset >> 24) & 0xff;
data += std::string((const char *)&keys.m_spend_public_key, sizeof(crypto::public_key));
data += std::string((const char *)&keys.m_view_public_key, sizeof(crypto::public_key));
for (const auto &item : ski.second)
{
data += std::string((const char *)&item.first, sizeof(crypto::key_image));
data += std::string((const char *)&item.second, sizeof(crypto::signature));
}
std::string ciphertext = m_wallet->encrypt_with_view_secret_key(data);
std::string magic(KEY_IMAGE_EXPORT_FILE_MAGIC, strlen(KEY_IMAGE_EXPORT_FILE_MAGIC));
res.encrypted_key_images_blob = epee::string_tools::buff_to_hex_nodelimer(magic + ciphertext);
}
catch (const std::exception& e)
{
handle_rpc_exception(std::current_exception(), er, WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR);
return false;
}
return true;
}/------------------------------------------------------------------------------------------------------------------------------
/bool wallet_rpc_server::on_import_encrypted_key_images(const wallet_rpc::COMMAND_RPC_IMPORT_ENCRYPTED_KEY_IMAGES::request& req, wallet_rpc::COMMAND_RPC_IMPORT_ENCRYPTED_KEY_IMAGES::response& res, epee::json_rpc::error& er, const connection_context *ctx)
{
if (!m_wallet) return not_open(er);
if (m_restricted)
{
er.code = WALLET_RPC_ERROR_CODE_DENIED;
er.message = "Command unavailable in restricted mode.";
return false;
}
if (!m_wallet->is_trusted_daemon())
{
er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
er.message = "This command requires a trusted daemon.";
return false;
}
try
{
std::string data;
if (!epee::string_tools::parse_hexstr_to_binbuff(req.encrypted_key_images_blob, data))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Failed to parse encrypted key images blob";
return false;
}
const size_t magiclen = strlen(KEY_IMAGE_EXPORT_FILE_MAGIC);
if (data.size() < magiclen || memcmp(data.data(), KEY_IMAGE_EXPORT_FILE_MAGIC, magiclen))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Bad key image export file magic in blob";
return false;
}
try
{
std::pair<uint64_t, std::vector<std::pair<crypto::key_image, crypto::signature>>> ski = m_wallet->export_key_images(req.all);
res.offset = ski.first;
// Serialize the key images and signatures into a single blob
std::string data;
data.reserve(ski.second.size() * (sizeof(crypto::key_image) + sizeof(crypto::signature)));
for (const auto &item : ski.second)
{
data += std::string((const char *)&item.first, sizeof(crypto::key_image));
data += std::string((const char *)&item.second, sizeof(crypto::signature));
}
// Encrypt the serialized data
std::string ciphertext = m_wallet->encrypt_with_view_secret_key(data);
// Encode the encrypted data as hex
res.encrypted_key_images_blob = epee::string_tools::buff_to_hex_nodelimer(ciphertext);
data = m_wallet->decrypt_with_view_secret_key(std::string(data, magiclen));
}
catch (const std::exception& e)
{
handle_rpc_exception(std::current_exception(), er, WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR);
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Failed to decrypt blob";
return false;
}
return true;
const size_t headerlen = 4 + 2 * sizeof(crypto::public_key);
if (data.size() < headerlen)
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Bad data size from file";
return false;
}
uint32_t offset = (uint8_t)data[0] | (((uint8_t)data[1]) << 8) | (((uint8_t)data[2]) << 16) | (((uint8_t)data[3]) << 24);
if (offset > m_wallet->get_num_transfer_details())
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Offset larger than known outputs";
return false;
}
const crypto::public_key &public_spend_key = *(const crypto::public_key*)&data[4];
const crypto::public_key &public_view_key = *(const crypto::public_key*)&data[4 + sizeof(crypto::public_key)];
const cryptonote::account_public_address &keys = m_wallet->get_account().get_keys().m_account_address;
if (public_spend_key != keys.m_spend_public_key || public_view_key != keys.m_view_public_key)
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Key images from different account";
return false;
}
const size_t record_size = sizeof(crypto::key_image) + sizeof(crypto::signature);
if ((data.size() - headerlen) % record_size)
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Bad data size from file";
return false;
}
size_t nki = (data.size() - headerlen) / record_size;
std::vector<std::pair<crypto::key_image, crypto::signature>> ski;
ski.reserve(nki);
for (size_t n = 0; n < nki; ++n)
{
crypto::key_image key_image = *reinterpret_cast<const crypto::key_image*>(&data[headerlen + n * record_size]);
crypto::signature signature = *reinterpret_cast<const crypto::signature*>(&data[headerlen + n * record_size + sizeof(crypto::key_image)]);
ski.push_back(std::make_pair(key_image, signature));
}
uint64_t spent = 0, unspent = 0;
uint64_t height = m_wallet->import_key_images(ski, offset, spent, unspent);
res.height = height;
res.spent = spent;
res.unspent = unspent;
}
//------------------------------------------------------------------------------------------------------------------------------
bool wallet_rpc_server::on_import_encrypted_key_images(const wallet_rpc::COMMAND_RPC_IMPORT_ENCRYPTED_KEY_IMAGES::request& req, wallet_rpc::COMMAND_RPC_IMPORT_ENCRYPTED_KEY_IMAGES::response& res, epee::json_rpc::error& er, const connection_context *ctx)
catch (const std::exception& e)
{
if (!m_wallet) return not_open(er);
if (m_restricted)
{
er.code = WALLET_RPC_ERROR_CODE_DENIED;
er.message = "Command unavailable in restricted mode.";
return false;
}
if (!m_wallet->is_trusted_daemon())
{
er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
er.message = "This command requires a trusted daemon.";
return false;
}
try
{
// Decode the hex-encoded encrypted blob
std::string ciphertext;
if (!epee::string_tools::parse_hexstr_to_binbuff(req.encrypted_key_images_blob, ciphertext))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Failed to parse encrypted key images blob";
return false;
}
// Decrypt the ciphertext
std::string decrypted_data = m_wallet->decrypt_with_view_secret_key(ciphertext);
// Deserialize the decrypted data into key images and signatures
std::vector<std::pair<crypto::key_image, crypto::signature>> ski;
const size_t record_size = sizeof(crypto::key_image) + sizeof(crypto::signature);
if (decrypted_data.size() % record_size != 0)
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Decrypted data size is not a multiple of the record size";
return false;
}
size_t num_records = decrypted_data.size() / record_size;
ski.reserve(num_records);
for (size_t i = 0; i < num_records; ++i)
{
crypto::key_image ki;
crypto::signature sig;
memcpy(&ki, &decrypted_data[i * record_size], sizeof(crypto::key_image));
memcpy(&sig, &decrypted_data[i * record_size + sizeof(crypto::key_image)], sizeof(crypto::signature));
ski.emplace_back(ki, sig);
}
uint64_t spent = 0, unspent = 0;
uint64_t height = m_wallet->import_key_images(ski, req.offset, spent, unspent);
res.height = height;
res.spent = spent;
res.unspent = unspent;
}
catch (const std::exception& e)
{
handle_rpc_exception(std::current_exception(), er, WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR);
return false;
}
return true;
handle_rpc_exception(std::current_exception(), er, WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR);
return false;
}
return true;
}/------------------------------------------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------------------------------------------
bool wallet_rpc_server::on_make_uri(const wallet_rpc::COMMAND_RPC_MAKE_URI::request& req, wallet_rpc::COMMAND_RPC_MAKE_URI::response& res, epee::json_rpc::error& er, const connection_context *ctx)
{