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/*
* Copyright (c) 2011-2013 libbitcoin developers (see AUTHORS)
*
* This file is part of libbitcoin.
*
* libbitcoin is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License with
* additional permissions to the one published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version. For more information see LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBBITCOIN_ADDRESS_HPP
#define LIBBITCOIN_ADDRESS_HPP
#include <bitcoin/types.hpp>
#include <bitcoin/script.hpp>
namespace libbitcoin {
/**
* A class for handling Bitcoin addresses. Supports encoding and decoding
* Bitcoin string addresses.
*
* To validate a Bitcoin address we can try to set a string address.
*
* @code
* payment_address payaddr;
* if (!payaddr.set_encoded("155GwFbFET2HCT6r6jHAHUoxc897sSdjaq"))
* // Address is invalid
* @endcode
*
* To check whether a payment_address has successfully been set, the
* hash value can be compared to null_short_hash (defined in constants.hpp).
*
* @code
* if (payaddr.hash() == null_short_hash)
* // This payment_address is empty.
* @endcode
*/
class payment_address
{
public:
#ifdef ENABLE_TESTNET
enum
{
pubkey_version = 0x6F,
script_version = 0xC4,
wif_version = 0xEF
};
#else
enum
{
pubkey_version = 0x00,
script_version = 0x05,
wif_version = 0x80
};
#endif
payment_address();
payment_address(uint8_t version, const short_hash& hash);
payment_address(const std::string& encoded_address);
void set(uint8_t version, const short_hash& hash);
uint8_t version() const;
const short_hash& hash() const;
bool set_encoded(const std::string& encoded_address);
std::string encoded() const;
private:
uint8_t version_;
short_hash hash_;
};
void set_public_key_hash(payment_address& address,
const short_hash& pubkey_hash);
void set_script_hash(payment_address& address,
const short_hash& script_hash);
void set_public_key(payment_address& address, const data_chunk& public_key);
void set_script(payment_address& address, const script_type& eval_script);
/**
* Extract a Bitcoin address from an input or output script.
* Returns false on failure.
*/
bool extract(payment_address& address, const script_type& script);
bool operator==(const payment_address& lhs, const payment_address& rhs);
} // namespace libbitcoin
// Allow payment_address to be in indexed in std::*map classes.
namespace std
{
template <>
struct hash<libbitcoin::payment_address>
{
size_t operator()(const libbitcoin::payment_address& payaddr) const
{
using libbitcoin::short_hash;
using libbitcoin::short_hash_size;
std::string raw_addr;
raw_addr.resize(short_hash_size + 1);
raw_addr[0] = payaddr.version();
const short_hash& addr_hash = payaddr.hash();
std::copy(addr_hash.begin(), addr_hash.end(),
raw_addr.begin() + 1);
std::hash<std::string> hash_fn;
return hash_fn(raw_addr);
}
};
}
#endif
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