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-rw-r--r--src/common/config.cpp3
-rw-r--r--src/common/messages.cpp139
-rw-r--r--src/common/messages.h38
-rw-r--r--src/common/signmessage.cpp93
-rw-r--r--src/common/signmessage.h77
-rw-r--r--src/common/system.cpp2
-rw-r--r--src/common/types.h26
7 files changed, 378 insertions, 0 deletions
diff --git a/src/common/config.cpp b/src/common/config.cpp
index 1c85273f69..98223fc3e3 100644
--- a/src/common/config.cpp
+++ b/src/common/config.cpp
@@ -27,6 +27,9 @@
#include <utility>
#include <vector>
+using util::TrimString;
+using util::TrimStringView;
+
static bool GetConfigOptions(std::istream& stream, const std::string& filepath, std::string& error, std::vector<std::pair<std::string, std::string>>& options, std::list<SectionInfo>& sections)
{
std::string str, prefix;
diff --git a/src/common/messages.cpp b/src/common/messages.cpp
new file mode 100644
index 0000000000..9e88ca8b0f
--- /dev/null
+++ b/src/common/messages.cpp
@@ -0,0 +1,139 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <common/messages.h>
+
+#include <common/types.h>
+#include <policy/fees.h>
+#include <node/types.h>
+#include <tinyformat.h>
+#include <util/strencodings.h>
+#include <util/string.h>
+#include <util/translation.h>
+
+#include <cassert>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+using node::TransactionError;
+using util::Join;
+
+namespace common {
+std::string StringForFeeReason(FeeReason reason)
+{
+ static const std::map<FeeReason, std::string> fee_reason_strings = {
+ {FeeReason::NONE, "None"},
+ {FeeReason::HALF_ESTIMATE, "Half Target 60% Threshold"},
+ {FeeReason::FULL_ESTIMATE, "Target 85% Threshold"},
+ {FeeReason::DOUBLE_ESTIMATE, "Double Target 95% Threshold"},
+ {FeeReason::CONSERVATIVE, "Conservative Double Target longer horizon"},
+ {FeeReason::MEMPOOL_MIN, "Mempool Min Fee"},
+ {FeeReason::PAYTXFEE, "PayTxFee set"},
+ {FeeReason::FALLBACK, "Fallback fee"},
+ {FeeReason::REQUIRED, "Minimum Required Fee"},
+ };
+ auto reason_string = fee_reason_strings.find(reason);
+
+ if (reason_string == fee_reason_strings.end()) return "Unknown";
+
+ return reason_string->second;
+}
+
+const std::vector<std::pair<std::string, FeeEstimateMode>>& FeeModeMap()
+{
+ static const std::vector<std::pair<std::string, FeeEstimateMode>> FEE_MODES = {
+ {"unset", FeeEstimateMode::UNSET},
+ {"economical", FeeEstimateMode::ECONOMICAL},
+ {"conservative", FeeEstimateMode::CONSERVATIVE},
+ };
+ return FEE_MODES;
+}
+
+std::string FeeModes(const std::string& delimiter)
+{
+ return Join(FeeModeMap(), delimiter, [&](const std::pair<std::string, FeeEstimateMode>& i) { return i.first; });
+}
+
+std::string InvalidEstimateModeErrorMessage()
+{
+ return "Invalid estimate_mode parameter, must be one of: \"" + FeeModes("\", \"") + "\"";
+}
+
+bool FeeModeFromString(const std::string& mode_string, FeeEstimateMode& fee_estimate_mode)
+{
+ auto searchkey = ToUpper(mode_string);
+ for (const auto& pair : FeeModeMap()) {
+ if (ToUpper(pair.first) == searchkey) {
+ fee_estimate_mode = pair.second;
+ return true;
+ }
+ }
+ return false;
+}
+
+bilingual_str PSBTErrorString(PSBTError err)
+{
+ switch (err) {
+ case PSBTError::MISSING_INPUTS:
+ return Untranslated("Inputs missing or spent");
+ case PSBTError::SIGHASH_MISMATCH:
+ return Untranslated("Specified sighash value does not match value stored in PSBT");
+ case PSBTError::EXTERNAL_SIGNER_NOT_FOUND:
+ return Untranslated("External signer not found");
+ case PSBTError::EXTERNAL_SIGNER_FAILED:
+ return Untranslated("External signer failed to sign");
+ case PSBTError::UNSUPPORTED:
+ return Untranslated("Signer does not support PSBT");
+ // no default case, so the compiler can warn about missing cases
+ }
+ assert(false);
+}
+
+bilingual_str TransactionErrorString(const TransactionError err)
+{
+ switch (err) {
+ case TransactionError::OK:
+ return Untranslated("No error");
+ case TransactionError::MISSING_INPUTS:
+ return Untranslated("Inputs missing or spent");
+ case TransactionError::ALREADY_IN_CHAIN:
+ return Untranslated("Transaction already in block chain");
+ case TransactionError::MEMPOOL_REJECTED:
+ return Untranslated("Transaction rejected by mempool");
+ case TransactionError::MEMPOOL_ERROR:
+ return Untranslated("Mempool internal error");
+ case TransactionError::MAX_FEE_EXCEEDED:
+ return Untranslated("Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)");
+ case TransactionError::MAX_BURN_EXCEEDED:
+ return Untranslated("Unspendable output exceeds maximum configured by user (maxburnamount)");
+ case TransactionError::INVALID_PACKAGE:
+ return Untranslated("Transaction rejected due to invalid package");
+ // no default case, so the compiler can warn about missing cases
+ }
+ assert(false);
+}
+
+bilingual_str ResolveErrMsg(const std::string& optname, const std::string& strBind)
+{
+ return strprintf(_("Cannot resolve -%s address: '%s'"), optname, strBind);
+}
+
+bilingual_str InvalidPortErrMsg(const std::string& optname, const std::string& invalid_value)
+{
+ return strprintf(_("Invalid port specified in %s: '%s'"), optname, invalid_value);
+}
+
+bilingual_str AmountHighWarn(const std::string& optname)
+{
+ return strprintf(_("%s is set very high!"), optname);
+}
+
+bilingual_str AmountErrMsg(const std::string& optname, const std::string& strValue)
+{
+ return strprintf(_("Invalid amount for -%s=<amount>: '%s'"), optname, strValue);
+}
+} // namespace common
diff --git a/src/common/messages.h b/src/common/messages.h
new file mode 100644
index 0000000000..68e7bb2169
--- /dev/null
+++ b/src/common/messages.h
@@ -0,0 +1,38 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+//! @file common/messages.h is a home for simple string functions returning
+//! descriptive messages that are used in RPC and GUI interfaces or log
+//! messages, and are called in different parts of the codebase across
+//! node/wallet/gui boundaries.
+
+#ifndef BITCOIN_COMMON_MESSAGES_H
+#define BITCOIN_COMMON_MESSAGES_H
+
+#include <string>
+
+struct bilingual_str;
+
+enum class FeeEstimateMode;
+enum class FeeReason;
+namespace node {
+enum class TransactionError;
+} // namespace node
+
+namespace common {
+enum class PSBTError;
+bool FeeModeFromString(const std::string& mode_string, FeeEstimateMode& fee_estimate_mode);
+std::string StringForFeeReason(FeeReason reason);
+std::string FeeModes(const std::string& delimiter);
+std::string InvalidEstimateModeErrorMessage();
+bilingual_str PSBTErrorString(PSBTError error);
+bilingual_str TransactionErrorString(const node::TransactionError error);
+bilingual_str ResolveErrMsg(const std::string& optname, const std::string& strBind);
+bilingual_str InvalidPortErrMsg(const std::string& optname, const std::string& strPort);
+bilingual_str AmountHighWarn(const std::string& optname);
+bilingual_str AmountErrMsg(const std::string& optname, const std::string& strValue);
+} // namespace common
+
+#endif // BITCOIN_COMMON_MESSAGES_H
diff --git a/src/common/signmessage.cpp b/src/common/signmessage.cpp
new file mode 100644
index 0000000000..1612751e44
--- /dev/null
+++ b/src/common/signmessage.cpp
@@ -0,0 +1,93 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <common/signmessage.h>
+#include <hash.h>
+#include <key.h>
+#include <key_io.h>
+#include <pubkey.h>
+#include <uint256.h>
+#include <util/strencodings.h>
+
+#include <cassert>
+#include <optional>
+#include <string>
+#include <variant>
+#include <vector>
+
+/**
+ * Text used to signify that a signed message follows and to prevent
+ * inadvertently signing a transaction.
+ */
+const std::string MESSAGE_MAGIC = "Bitcoin Signed Message:\n";
+
+MessageVerificationResult MessageVerify(
+ const std::string& address,
+ const std::string& signature,
+ const std::string& message)
+{
+ CTxDestination destination = DecodeDestination(address);
+ if (!IsValidDestination(destination)) {
+ return MessageVerificationResult::ERR_INVALID_ADDRESS;
+ }
+
+ if (std::get_if<PKHash>(&destination) == nullptr) {
+ return MessageVerificationResult::ERR_ADDRESS_NO_KEY;
+ }
+
+ auto signature_bytes = DecodeBase64(signature);
+ if (!signature_bytes) {
+ return MessageVerificationResult::ERR_MALFORMED_SIGNATURE;
+ }
+
+ CPubKey pubkey;
+ if (!pubkey.RecoverCompact(MessageHash(message), *signature_bytes)) {
+ return MessageVerificationResult::ERR_PUBKEY_NOT_RECOVERED;
+ }
+
+ if (!(PKHash(pubkey) == *std::get_if<PKHash>(&destination))) {
+ return MessageVerificationResult::ERR_NOT_SIGNED;
+ }
+
+ return MessageVerificationResult::OK;
+}
+
+bool MessageSign(
+ const CKey& privkey,
+ const std::string& message,
+ std::string& signature)
+{
+ std::vector<unsigned char> signature_bytes;
+
+ if (!privkey.SignCompact(MessageHash(message), signature_bytes)) {
+ return false;
+ }
+
+ signature = EncodeBase64(signature_bytes);
+
+ return true;
+}
+
+uint256 MessageHash(const std::string& message)
+{
+ HashWriter hasher{};
+ hasher << MESSAGE_MAGIC << message;
+
+ return hasher.GetHash();
+}
+
+std::string SigningResultString(const SigningResult res)
+{
+ switch (res) {
+ case SigningResult::OK:
+ return "No error";
+ case SigningResult::PRIVATE_KEY_NOT_AVAILABLE:
+ return "Private key not available";
+ case SigningResult::SIGNING_FAILED:
+ return "Sign failed";
+ // no default case, so the compiler can warn about missing cases
+ }
+ assert(false);
+}
diff --git a/src/common/signmessage.h b/src/common/signmessage.h
new file mode 100644
index 0000000000..215b563bbb
--- /dev/null
+++ b/src/common/signmessage.h
@@ -0,0 +1,77 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_COMMON_SIGNMESSAGE_H
+#define BITCOIN_COMMON_SIGNMESSAGE_H
+
+#include <uint256.h>
+
+#include <string>
+
+class CKey;
+
+extern const std::string MESSAGE_MAGIC;
+
+/** The result of a signed message verification.
+ * Message verification takes as an input:
+ * - address (with whose private key the message is supposed to have been signed)
+ * - signature
+ * - message
+ */
+enum class MessageVerificationResult {
+ //! The provided address is invalid.
+ ERR_INVALID_ADDRESS,
+
+ //! The provided address is valid but does not refer to a public key.
+ ERR_ADDRESS_NO_KEY,
+
+ //! The provided signature couldn't be parsed (maybe invalid base64).
+ ERR_MALFORMED_SIGNATURE,
+
+ //! A public key could not be recovered from the provided signature and message.
+ ERR_PUBKEY_NOT_RECOVERED,
+
+ //! The message was not signed with the private key of the provided address.
+ ERR_NOT_SIGNED,
+
+ //! The message verification was successful.
+ OK
+};
+
+enum class SigningResult {
+ OK, //!< No error
+ PRIVATE_KEY_NOT_AVAILABLE,
+ SIGNING_FAILED,
+};
+
+/** Verify a signed message.
+ * @param[in] address Signer's bitcoin address, it must refer to a public key.
+ * @param[in] signature The signature in base64 format.
+ * @param[in] message The message that was signed.
+ * @return result code */
+MessageVerificationResult MessageVerify(
+ const std::string& address,
+ const std::string& signature,
+ const std::string& message);
+
+/** Sign a message.
+ * @param[in] privkey Private key to sign with.
+ * @param[in] message The message to sign.
+ * @param[out] signature Signature, base64 encoded, only set if true is returned.
+ * @return true if signing was successful. */
+bool MessageSign(
+ const CKey& privkey,
+ const std::string& message,
+ std::string& signature);
+
+/**
+ * Hashes a message for signing and verification in a manner that prevents
+ * inadvertently signing a transaction.
+ */
+uint256 MessageHash(const std::string& message);
+
+std::string SigningResultString(const SigningResult res);
+
+#endif // BITCOIN_COMMON_SIGNMESSAGE_H
diff --git a/src/common/system.cpp b/src/common/system.cpp
index ddd0feda3b..6d04c8a7bc 100644
--- a/src/common/system.cpp
+++ b/src/common/system.cpp
@@ -28,6 +28,8 @@
#include <string>
#include <thread>
+using util::ReplaceAll;
+
// Application startup time (used for uptime calculation)
const int64_t nStartupTime = GetTime();
diff --git a/src/common/types.h b/src/common/types.h
new file mode 100644
index 0000000000..0d9cb67ce9
--- /dev/null
+++ b/src/common/types.h
@@ -0,0 +1,26 @@
+// Copyright (c) 2010-2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+//! @file common/types.h is a home for simple enum and struct type definitions
+//! that can be used internally by functions in the libbitcoin_common library,
+//! but also used externally by node, wallet, and GUI code.
+//!
+//! This file is intended to define only simple types that do not have external
+//! dependencies. More complicated types should be defined in dedicated header
+//! files.
+
+#ifndef BITCOIN_COMMON_TYPES_H
+#define BITCOIN_COMMON_TYPES_H
+
+namespace common {
+enum class PSBTError {
+ MISSING_INPUTS,
+ SIGHASH_MISMATCH,
+ EXTERNAL_SIGNER_NOT_FOUND,
+ EXTERNAL_SIGNER_FAILED,
+ UNSUPPORTED,
+};
+} // namespace common
+
+#endif // BITCOIN_COMMON_TYPES_H