File indexing completed on 2025-04-20 11:02:16

 /*
     SPDX-FileCopyrightText: 2009 Paul Marchouk <pmarchouk@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 */
 
 #include "simpleipv4addressvalidator.h"
 
 #include <QStringList>
 #include <QVector>
 
 SimpleIpV4AddressValidator::SimpleIpV4AddressValidator(AddressStyle style, QObject *parent)
     : QValidator(parent)
     , m_addressStyle(style)
 {
     switch (style) {
     case Base:
         m_validator.setRegularExpression(QRegularExpression(QStringLiteral("[0-9, ]{1,3}\\.[0-9, ]{1,3}\\.[0-9, ]{1,3}\\.[0-9, ]{1,3}")));
         break;
     case WithCidr:
         m_validator.setRegularExpression(QRegularExpression(QStringLiteral("([0-9]{1,3}\\.){3,3}[0-9]{1,3}/[0-9]{1,2}")));
         break;
     case WithPort:
         m_validator.setRegularExpression(QRegularExpression(QStringLiteral("([0-9]{1,3}\\.){3,3}[0-9]{1,3}:[0-9]{1,5}")));
         break;
     }
 }
 
 SimpleIpV4AddressValidator::~SimpleIpV4AddressValidator() = default;
 
 QValidator::State SimpleIpV4AddressValidator::validate(QString &address, int &pos) const
 {
     QValidator::State maskResult = checkWithInputMask(address, pos);
     if (QValidator::Invalid == maskResult) {
         return QValidator::Invalid;
     }
 
     // this list will be filled with tetrad values. It can be used to make
     // some additional correctness checks on the last validation step.
     QList<int> tetrads;
 
     QValidator::State tetradResult = checkTetradsRanges(address, tetrads);
     if (QValidator::Invalid == tetradResult)
         return QValidator::Invalid;
     else if (QValidator::Intermediate == tetradResult || QValidator::Intermediate == maskResult)
         return QValidator::Intermediate;
     else
         return QValidator::Acceptable;
 }
 
 QValidator::State SimpleIpV4AddressValidator::checkWithInputMask(QString &value, int &pos) const
 {
     return m_validator.validate(value, pos);
 }
 
 QValidator::State SimpleIpV4AddressValidator::checkTetradsRanges(QString &value, QList<int> &tetrads) const
 {
     QStringList temp;
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     QVector<QStringRef> addrParts;
 #else
     QVector<QStringView> addrParts;
 #endif
     QStringList cidrParts;
     QStringList portParts;
 
     switch (m_addressStyle) {
     case Base:
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         addrParts = value.splitRef(QLatin1Char('.'));
 #else
         addrParts = QStringView(value).split(QLatin1Char('.'));
 #endif
         break;
 
     case WithCidr:
         cidrParts = value.split(QLatin1Char('/'));
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         addrParts = cidrParts[0].splitRef(QLatin1Char('.'));
 #else
         addrParts = QStringView(cidrParts[0]).split(QLatin1Char('.'));
 #endif
         break;
 
     case WithPort:
         portParts = value.split(QLatin1Char(':'));
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         addrParts = portParts[0].splitRef(QLatin1Char('.'));
 #else
         addrParts = QStringView(portParts[0]).split(QLatin1Char('.'));
 #endif
         break;
     }
 
     int i = 0;
     // fill in the list with invalid values
     tetrads << -1 << -1 << -1 << -1;
 
     // lets check address parts
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     for (const QStringRef &part : std::as_const(addrParts)) {
 #else
     for (const QStringView &part : std::as_const(addrParts)) {
 #endif
         if (part.isEmpty()) {
             if (i != (addrParts.size() - 1)) {
                 // qCDebug(PLASMA_NM_EDITOR_LOG) << "part.isEmpty()";
                 return QValidator::Invalid;
             }
             // the last tetrad can be empty, continue...
             return QValidator::Intermediate;
         }
 
         tetrads[i] = part.toInt();
 
         if (tetrads[i] > 255) {
             // qCDebug(PLASMA_NM_EDITOR_LOG) << "tetrads[i] > 255";
             return QValidator::Invalid;
         }
 
         // correct tetrad value: for example, 001 -> 1
         temp.append(QString::number(tetrads[i]));
 
         i++;
     }
 
     // replace input string with the corrected version
     value = temp.join(QLatin1String("."));
 
     if (i < 4) {
         // not all tetrads are filled... continue
         // qCDebug(PLASMA_NM_EDITOR_LOG) << "QValidator::Intermediate";
         return QValidator::Intermediate;
     } else {
         if (m_addressStyle == WithCidr) {
             if (cidrParts.size() > 1) {
                 value += QLatin1String("/");
                 if (!cidrParts[1].isEmpty()) {
                     int cidrValue = cidrParts[1].toInt();
                     if (cidrValue > 32) {
                         return QValidator::Invalid;
                     } else {
                         value += cidrParts[1];
                         return QValidator::Acceptable;
                     }
                 } else {
                     return QValidator::Intermediate;
                 }
             }
         } else if (m_addressStyle == WithPort) {
             if (portParts.size() > 1) {
                 value += QLatin1String(":");
                 if (!portParts[1].isEmpty()) {
                     int portValue = portParts[1].toInt();
                     if (portValue > 65535) {
                         return QValidator::Invalid;
                     } else {
                         value += portParts[1];
                         return QValidator::Acceptable;
                     }
                 } else {
                     return QValidator::Intermediate;
                 }
             }
         }
 
         // qCDebug(PLASMA_NM_EDITOR_LOG) << "QValidator::Acceptable";
         return QValidator::Acceptable;
     }
 }