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125 lines
4.4 KiB
125 lines
4.4 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2020 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 <pubkey.h>
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#include <script/script.h>
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#include <script/sign.h>
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#include <script/signingprovider.h>
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#include <script/standard.h>
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#include <util/vector.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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static const std::string OUTPUT_TYPE_STRING_MWEB = "mweb";
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const std::array<OutputType, 4> OUTPUT_TYPES = {OutputType::LEGACY, OutputType::P2SH_SEGWIT, OutputType::BECH32, OutputType::MWEB};
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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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} else if (type == OUTPUT_TYPE_STRING_MWEB) {
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output_type = OutputType::MWEB;
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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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case OutputType::MWEB: return OUTPUT_TYPE_STRING_MWEB;
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} // no default case, so the compiler can warn about missing cases
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assert(false);
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}
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CTxDestination GetDestinationForKey(const CPubKey& key, OutputType type, const SecretKey& scan_secret)
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{
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assert(type != OutputType::MWEB || !scan_secret.IsNull());
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switch (type) {
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case OutputType::LEGACY: return PKHash(key);
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case OutputType::P2SH_SEGWIT:
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case OutputType::BECH32: {
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if (!key.IsCompressed()) return PKHash(key);
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CTxDestination witdest = WitnessV0KeyHash(key);
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CScript witprog = GetScriptForDestination(witdest);
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if (type == OutputType::P2SH_SEGWIT) {
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return ScriptHash(witprog);
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} else {
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return witdest;
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}
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}
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case OutputType::MWEB: {
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PublicKey spend_pubkey(key.data());
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return StealthAddress(spend_pubkey.Mul(scan_secret), spend_pubkey);
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}
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} // no default case, so the compiler can warn about missing cases
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assert(false);
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}
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std::vector<CTxDestination> GetAllDestinationsForKey(const CPubKey& key, const SecretKey& scan_secret)
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{
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PKHash keyid(key);
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CTxDestination p2pkh{keyid};
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if (key.IsCompressed()) {
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CTxDestination segwit = WitnessV0KeyHash(keyid);
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CTxDestination p2sh = ScriptHash(GetScriptForDestination(segwit));
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if (!scan_secret.IsNull()) {
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CTxDestination stealth = GetDestinationForKey(key, OutputType::MWEB, scan_secret);
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return Vector(std::move(p2pkh), std::move(p2sh), std::move(segwit), std::move(stealth));
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} else {
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return Vector(std::move(p2pkh), std::move(p2sh), std::move(segwit));
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}
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} else {
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return Vector(std::move(p2pkh));
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}
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}
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CTxDestination AddAndGetDestinationForScript(FillableSigningProvider& 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 ScriptHash(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 ScriptHash(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 ScriptHash(witprog);
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}
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}
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case OutputType::MWEB:
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assert(false);
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} // no default case, so the compiler can warn about missing cases
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assert(false);
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}
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