Differential D552 Diff 1796 src/qt/bitcoinaddressvalidator.cpp

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src/qt/bitcoinaddressvalidator.cpp

// Copyright (c) 2011-2014 The Bitcoin Core developers		// Copyright (c) 2011-2014 The Bitcoin Core developers
		// Copyright (c) 2017 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying		// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.		// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include "bitcoinaddressvalidator.h"		#include "bitcoinaddressvalidator.h"

		#include "cashaddr.h"
#include "dstencode.h"		#include "dstencode.h"

/* Base58 characters are:		/* Base58 characters are:
"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"		"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"

This is:		This is:
- All numbers except for '0'		- All numbers except for '0'
- All upper-case letters except for 'I' and 'O'		- All upper-case letters except for 'I' and 'O'
- All lower-case letters except for 'l'		- All lower-case letters except for 'l'
*/		*/
		static bool ValidLegacyInput(const QString &input) {
		// Alphanumeric and not a 'forbidden' character
		for (QChar ch : input) {
		if (!(((ch >= '0' && ch <= '9') \|\| (ch >= 'a' && ch <= 'z') \|\|
		(ch >= 'A' && ch <= 'Z')) &&
		ch != 'l' && ch != 'I' && ch != '0' && ch != 'O'))
		return false;
		}
		return true;
		}

BitcoinAddressEntryValidator::BitcoinAddressEntryValidator(QObject *parent)		static bool ValidCashaddrInput(const QString &prefix, const QString &input) {
: QValidator(parent) {}
		std::vector<uint8_t> charset = cashaddr::EncodingCharset();

		// Input may be incomplete. We're checking if it so far looks good.

		for (int i = 0; i < input.size(); ++i) {
		char ch = std::tolower(input[i].toLatin1());

		// Does the input have the right prefix?
		if (i < prefix.size()) {
		if (ch != prefix[i].toLatin1()) {
		return false;
		}
		continue;
		}

		// Payload, must use cashaddr charset.
		if (std::find(begin(charset), end(charset), ch) == end(charset)) {
		return false;
		}
		}
		return true;
		}
		BitcoinAddressEntryValidator::BitcoinAddressEntryValidator(
		const std::string &cashaddrprefix, QObject *parent)
		: QValidator(parent), cashaddrprefix(cashaddrprefix) {}

QValidator::State BitcoinAddressEntryValidator::validate(QString &input,		QValidator::State BitcoinAddressEntryValidator::validate(QString &input,
int &pos) const {		int &pos) const {
Q_UNUSED(pos);		Q_UNUSED(pos);

// Empty address is "intermediate" input		// Empty address is "intermediate" input
if (input.isEmpty()) return QValidator::Intermediate;		if (input.isEmpty()) return QValidator::Intermediate;

Show All 20 Lines	for (int idx = 0; idx < input.size();) {
// To next character		// To next character
if (removeChar)		if (removeChar)
input.remove(idx, 1);		input.remove(idx, 1);
else		else
++idx;		++idx;
}		}

// Validation		// Validation
QValidator::State state = QValidator::Acceptable;		const QString cashPrefix = QString::fromStdString(cashaddrprefix) + ":";
for (int idx = 0; idx < input.size(); ++idx) {		return (ValidLegacyInput(input) \|\| ValidCashaddrInput(cashPrefix, input))
int ch = input.at(idx).unicode();		? QValidator::Acceptable
		: QValidator::Invalid;
if (((ch >= '0' && ch <= '9') \|\| (ch >= 'a' && ch <= 'z') \|\|
(ch >= 'A' && ch <= 'Z')) &&
ch != 'l' && ch != 'I' && ch != '0' && ch != 'O') {
// Alphanumeric and not a 'forbidden' character
} else {
state = QValidator::Invalid;
}
}

return state;
}		}

BitcoinAddressCheckValidator::BitcoinAddressCheckValidator(QObject *parent)		BitcoinAddressCheckValidator::BitcoinAddressCheckValidator(QObject *parent)
: QValidator(parent) {}		: QValidator(parent) {}

QValidator::State BitcoinAddressCheckValidator::validate(QString &input,		QValidator::State BitcoinAddressCheckValidator::validate(QString &input,
int &pos) const {		int &pos) const {
Q_UNUSED(pos);		Q_UNUSED(pos);
// Validate the passed Bitcoin address		// Validate the passed Bitcoin address
if (IsValidDestinationString(input.toStdString())) {		if (IsValidDestinationString(input.toStdString())) {
return QValidator::Acceptable;		return QValidator::Acceptable;
}		}

return QValidator::Invalid;		return QValidator::Invalid;
}		}