mirror of https://github.com/nextcloud/desktop
260 lines
9.4 KiB
C++
260 lines
9.4 KiB
C++
/*
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* Copyright (C) by Daniel Molkentin <danimo@owncloud.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "sslbutton.h"
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#include "account.h"
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#include "accountstate.h"
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#include "utility.h"
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#include "theme.h"
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#include <QMenu>
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#include <QUrl>
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#include <QtNetwork>
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#include <QSslConfiguration>
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#include <QWidgetAction>
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#include <QLabel>
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namespace OCC {
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SslButton::SslButton(QWidget *parent) :
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QToolButton(parent)
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{
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setPopupMode(QToolButton::InstantPopup);
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setAutoRaise(true);
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_menu = new QMenu(this);
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QObject::connect(_menu, SIGNAL(aboutToShow()),
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this, SLOT(slotUpdateMenu()));
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}
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QString SslButton::protoToString(QSsl::SslProtocol proto)
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{
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switch(proto) {
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break;
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case QSsl::SslV2:
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return QLatin1String("SSL v2");
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case QSsl::SslV3:
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return QLatin1String("SSL v3");
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case QSsl::TlsV1:
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return QLatin1String("TLS");
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default:
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return QString();
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}
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}
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static QString addCertDetailsField(const QString &key, const QString &value)
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{
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if (value.isEmpty())
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return QString();
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return QString::fromLatin1("<tr><td style=\"vertical-align: top;\"><b>%1</b></td><td style=\"vertical-align: bottom;\">%2</td></tr>").arg(key).arg(value);
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}
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// necessary indication only, not sufficient for primary validation!
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static bool isSelfSigned(const QSslCertificate &certificate)
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{
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return certificate.issuerInfo(QSslCertificate::CommonName) == certificate.subjectInfo(QSslCertificate::CommonName) &&
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certificate.issuerInfo(QSslCertificate::OrganizationalUnitName) == certificate.subjectInfo(QSslCertificate::OrganizationalUnitName);
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}
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QMenu* SslButton::buildCertMenu(QMenu *parent, const QSslCertificate& cert,
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const QList<QSslCertificate>& userApproved, int pos)
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{
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QString cn = QStringList(cert.subjectInfo(QSslCertificate::CommonName)).join(QChar(';'));
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QString ou = QStringList(cert.subjectInfo(QSslCertificate::OrganizationalUnitName)).join(QChar(';'));
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QString org = QStringList(cert.subjectInfo(QSslCertificate::Organization)).join(QChar(';'));
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QString country = QStringList(cert.subjectInfo(QSslCertificate::CountryName)).join(QChar(';'));
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QString state = QStringList(cert.subjectInfo(QSslCertificate::StateOrProvinceName)).join(QChar(';'));
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QString issuer = QStringList(cert.issuerInfo(QSslCertificate::CommonName)).join(QChar(';'));
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if (issuer.isEmpty())
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issuer = QStringList(cert.issuerInfo(QSslCertificate::OrganizationalUnitName)).join(QChar(';'));
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QString sha1 = Utility::formatFingerprint(cert.digest(QCryptographicHash::Sha1).toHex(), false);
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#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
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QString md5 = Utility::formatFingerprint(cert.digest(QCryptographicHash::Md5).toHex(), false);
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#else
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QByteArray sha265hash = cert.digest(QCryptographicHash::Sha256).toHex();
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QString sha256escaped =
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Utility::escape(Utility::formatFingerprint(sha265hash.left(sha265hash.length()/2), false)) +
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QLatin1String("<br/>") +
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Utility::escape(Utility::formatFingerprint(sha265hash.mid(sha265hash.length()/2), false));
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#endif
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QString serial = QString::fromUtf8(cert.serialNumber());
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QString effectiveDate = cert.effectiveDate().date().toString();
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QString expiryDate = cert.expiryDate().date().toString();
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QString sna = QStringList(cert.alternateSubjectNames().values()).join(" ");
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QString details;
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QTextStream stream(&details);
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stream << QLatin1String("<html><body>");
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stream << tr("<h3>Certificate Details</h3>");
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stream << QLatin1String("<table>");
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stream << addCertDetailsField(tr("Common Name (CN):"), Utility::escape(cn));
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stream << addCertDetailsField(tr("Subject Alternative Names:"), Utility::escape(sna)
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.replace(" ", "<br/>"));
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stream << addCertDetailsField(tr("Organization (O):"), Utility::escape(org));
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stream << addCertDetailsField(tr("Organizational Unit (OU):"), Utility::escape(ou));
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stream << addCertDetailsField(tr("State/Province:"), Utility::escape(state));
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stream << addCertDetailsField(tr("Country:"), Utility::escape(country));
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stream << addCertDetailsField(tr("Serial:"), Utility::escape(serial));
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stream << QLatin1String("</table>");
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stream << tr("<h3>Issuer</h3>");
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stream << QLatin1String("<table>");
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stream << addCertDetailsField(tr("Issuer:"), Utility::escape(issuer));
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stream << addCertDetailsField(tr("Issued on:"), Utility::escape(effectiveDate));
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stream << addCertDetailsField(tr("Expires on:"), Utility::escape(expiryDate));
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stream << QLatin1String("</table>");
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stream << tr("<h3>Fingerprints</h3>");
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stream << QLatin1String("<table>");
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#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
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stream << addCertDetailsField(tr("MD 5:"), Utility::escape(md5));
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#else
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stream << addCertDetailsField(tr("SHA-256:"), sha256escaped);
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#endif
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stream << addCertDetailsField(tr("SHA-1:"), Utility::escape(sha1));
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stream << QLatin1String("</table>");
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if (userApproved.contains(cert)) {
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stream << tr("<p><b>Note:</b> This certificate was manually approved</p>");
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}
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stream << QLatin1String("</body></html>");
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QString txt;
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if (pos > 0) {
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txt += QString(2*pos, ' ');
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if (!Utility::isWindows()) {
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// doesn't seem to work reliably on Windows
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txt += QChar(0x21AA); // nicer '->' symbol
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txt += QChar(' ');
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}
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}
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QString certId = cn.isEmpty() ? ou : cn;
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if (QSslSocket::systemCaCertificates().contains(cert)) {
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txt += certId;
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} else {
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if (isSelfSigned(cert)) {
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txt += tr("%1 (self-signed)").arg(certId);
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} else {
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txt += tr("%1").arg(certId);
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}
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}
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// create label first
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QLabel *label = new QLabel(parent);
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label->setStyleSheet(QLatin1String("QLabel { padding: 8px; background-color: #fff; }"));
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label->setText(details);
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// plug label into widget action
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QWidgetAction *action = new QWidgetAction(parent);
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action->setDefaultWidget(label);
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// plug action into menu
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QMenu *menu = new QMenu(parent);
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menu->menuAction()->setText(txt);
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menu->addAction(action);
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return menu;
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}
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void SslButton::updateAccountState(AccountState *accountState)
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{
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if (!accountState || !accountState->isConnected()) {
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setVisible(false);
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return;
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} else {
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setVisible(true);
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}
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_accountState = accountState;
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AccountPtr account = _accountState->account();
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if (account->url().scheme() == QLatin1String("https")) {
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setIcon(QIcon(QLatin1String(":/client/resources/lock-https.png")));
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QSslCipher cipher = account->_sessionCipher;
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setToolTip(tr("This connection is encrypted using %1 bit %2.\n").arg(cipher.usedBits()).arg(cipher.name()));
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setMenu(_menu);
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} else {
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setIcon(QIcon(QLatin1String(":/client/resources/lock-http.png")));
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setToolTip(tr("This connection is NOT secure as it is not encrypted.\n"));
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setMenu(0);
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}
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}
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void SslButton::slotUpdateMenu() {
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_menu->clear();
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if (!_accountState) {
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return;
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}
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AccountPtr account = _accountState->account();
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if (account->url().scheme() == QLatin1String("https")) {
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QString sslVersion = account->_sessionCipher.protocolString()
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+ ", " + account->_sessionCipher.authenticationMethod()
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+ ", " + account->_sessionCipher.keyExchangeMethod()
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+ ", " + account->_sessionCipher.encryptionMethod();
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_menu->addAction(sslVersion)->setEnabled(false);
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#if QT_VERSION > QT_VERSION_CHECK(5, 2, 0)
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if (account->_sessionTicket.isEmpty()) {
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_menu->addAction(tr("No support for SSL session tickets/identifiers"))->setEnabled(false);
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}
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#endif
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QList<QSslCertificate> chain = account->_peerCertificateChain;
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if (chain.isEmpty()) {
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qWarning() << "empty certificate chain";
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return;
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}
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_menu->addAction(tr("Certificate information:"))->setEnabled(false);
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QList<QSslCertificate> tmpChain;
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foreach(QSslCertificate cert, chain) {
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tmpChain << cert;
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if (QSslSocket::systemCaCertificates().contains(cert))
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break;
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}
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chain = tmpChain;
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// find trust anchor (informational only, verification is done by QSslSocket!)
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foreach(QSslCertificate rootCA, QSslSocket::systemCaCertificates()) {
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if (rootCA.issuerInfo(QSslCertificate::CommonName) == chain.last().issuerInfo(QSslCertificate::CommonName) &&
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rootCA.issuerInfo(QSslCertificate::Organization) == chain.last().issuerInfo(QSslCertificate::Organization)) {
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chain.append(rootCA);
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break;
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}
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}
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QListIterator<QSslCertificate> it(chain);
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it.toBack();
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int i = 0;
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while (it.hasPrevious()) {
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_menu->addMenu(buildCertMenu(_menu, it.previous(), account->approvedCerts(), i));
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i++;
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}
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}
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}
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} // namespace OCC
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