102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2018 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <outputtype.h>
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#include <keystore.h>
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#include <pubkey.h>
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#include <script/script.h>
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#include <script/standard.h>
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#include <assert.h>
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#include <string>
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static const std::string OUTPUT_TYPE_STRING_LEGACY = "legacy";
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static const std::string OUTPUT_TYPE_STRING_P2SH_SEGWIT = "p2sh-segwit";
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static const std::string OUTPUT_TYPE_STRING_BECH32 = "bech32";
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bool ParseOutputType(const std::string& type, OutputType& output_type)
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{
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if (type == OUTPUT_TYPE_STRING_LEGACY) {
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output_type = OutputType::LEGACY;
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return true;
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} else if (type == OUTPUT_TYPE_STRING_P2SH_SEGWIT) {
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output_type = OutputType::P2SH_SEGWIT;
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return true;
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} else if (type == OUTPUT_TYPE_STRING_BECH32) {
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output_type = OutputType::BECH32;
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return true;
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}
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return false;
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}
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const std::string& FormatOutputType(OutputType type)
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{
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switch (type) {
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case OutputType::LEGACY: return OUTPUT_TYPE_STRING_LEGACY;
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case OutputType::P2SH_SEGWIT: return OUTPUT_TYPE_STRING_P2SH_SEGWIT;
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case OutputType::BECH32: return OUTPUT_TYPE_STRING_BECH32;
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default: assert(false);
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}
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}
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CTxDestination GetDestinationForKey(const CPubKey& key, OutputType type)
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{
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switch (type) {
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case OutputType::LEGACY: return key.GetID();
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case OutputType::P2SH_SEGWIT:
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case OutputType::BECH32: {
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if (!key.IsCompressed()) return key.GetID();
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CTxDestination witdest = WitnessV0KeyHash(key.GetID());
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CScript witprog = GetScriptForDestination(witdest);
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if (type == OutputType::P2SH_SEGWIT) {
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return CScriptID(witprog);
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} else {
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return witdest;
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}
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}
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default: assert(false);
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}
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}
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std::vector<CTxDestination> GetAllDestinationsForKey(const CPubKey& key)
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{
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CKeyID keyid = key.GetID();
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if (key.IsCompressed()) {
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CTxDestination segwit = WitnessV0KeyHash(keyid);
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CTxDestination p2sh = CScriptID(GetScriptForDestination(segwit));
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return std::vector<CTxDestination>{std::move(keyid), std::move(p2sh), std::move(segwit)};
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} else {
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return std::vector<CTxDestination>{std::move(keyid)};
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}
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}
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CTxDestination AddAndGetDestinationForScript(CKeyStore& keystore, const CScript& script, OutputType type)
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{
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// Add script to keystore
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keystore.AddCScript(script);
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// Note that scripts over 520 bytes are not yet supported.
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switch (type) {
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case OutputType::LEGACY:
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return CScriptID(script);
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case OutputType::P2SH_SEGWIT:
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case OutputType::BECH32: {
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CTxDestination witdest = WitnessV0ScriptHash(script);
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CScript witprog = GetScriptForDestination(witdest);
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// Check if the resulting program is solvable (i.e. doesn't use an uncompressed key)
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if (!IsSolvable(keystore, witprog)) return CScriptID(script);
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// Add the redeemscript, so that P2WSH and P2SH-P2WSH outputs are recognized as ours.
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keystore.AddCScript(witprog);
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if (type == OutputType::BECH32) {
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return witdest;
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} else {
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return CScriptID(witprog);
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}
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}
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default: assert(false);
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}
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}
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