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98 lines
3 KiB
C++
98 lines
3 KiB
C++
/*
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Copyright 2009 Paul Marchouk <pmarchouk@gmail.com>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License or (at your option) version 3 or any later version
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accepted by the membership of KDE e.V. (or its successor approved
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by the membership of KDE e.V.), which shall act as a proxy
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defined in Section 14 of version 3 of the license.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "simpleipv4addressvalidator.h"
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#include <KDebug>
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#include <QStringList>
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SimpleIpV4AddressValidator::SimpleIpV4AddressValidator(QObject *parent)
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: QValidator(parent)
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{
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}
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SimpleIpV4AddressValidator::~SimpleIpV4AddressValidator()
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{
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}
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QValidator::State SimpleIpV4AddressValidator::validate(QString &address, int &pos) const
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{
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if (QValidator::Invalid == checkWithInputMask(address, pos)) {
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return QValidator::Invalid;
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}
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// this list will be filled with tetrad values. It can be used to make
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// some additional correctness checks on the last validation step.
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QList<int> tetrads;
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return checkTetradsRanges(address, tetrads);
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}
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QValidator::State SimpleIpV4AddressValidator::checkWithInputMask(QString &value, int &pos) const
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{
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QRegExpValidator v(QRegExp("[0-9, ]{1,3}\\.[0-9, ]{1,3}\\.[0-9, ]{1,3}\\.[0-9, ]{1,3}"), 0);
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return v.validate(value, pos);
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}
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QValidator::State SimpleIpV4AddressValidator::checkTetradsRanges(QString &value, QList<int> &tetrads) const
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{
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QStringList temp;
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const QStringList addrParts = value.split(QLatin1Char('.'));
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int i = 0;
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// fill in the list with invalid values
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tetrads << -1 << -1 << -1 << -1;
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// lets check address parts
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foreach(const QString &part, addrParts) {
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if (part.isEmpty()) {
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if (i != (addrParts.size() - 1)) {
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//kDebug() << "part.isEmpty()";
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return QValidator::Invalid;
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}
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// the last tetrad can be empty, continue...
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return QValidator::Intermediate;
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}
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tetrads[i] = part.toInt();
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if (tetrads[i] > 255) {
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//kDebug() << "tetrads[i] > 255";
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return QValidator::Invalid;
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}
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// correct tetrad value: for example, 001 -> 1
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temp.append(QString::number(tetrads[i]));
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i++;
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}
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// replace input string with the corrected version
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value = temp.join(QLatin1String("."));
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if (i < 4) {
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// not all tetrads are filled... continue
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//kDebug() << "QValidator::Intermediate";
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return QValidator::Intermediate;
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} else {
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//kDebug() << "QValidator::Acceptable";
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return QValidator::Acceptable;
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}
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}
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