QCA
ssltest.cpp
The code below shows how to create an SSL client
/*
Copyright (C) 2003-2005 Justin Karneges <[email protected]>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <QtCrypto>
#include <QCoreApplication>
#include <QTcpSocket>
#ifdef QT_STATICPLUGIN
#include "import_plugins.h"
#endif
char exampleCA_cert[] =
"-----BEGIN CERTIFICATE-----\n"
"MIICSzCCAbSgAwIBAgIBADANBgkqhkiG9w0BAQUFADA4MRMwEQYDVQQDEwpFeGFt\n"
"cGxlIENBMQswCQYDVQQGEwJVUzEUMBIGA1UEChMLRXhhbXBsZSBPcmcwHhcNMDYw\n"
"MzE1MDY1ODMyWhcNMDYwNDE1MDY1ODMyWjA4MRMwEQYDVQQDEwpFeGFtcGxlIENB\n"
"MQswCQYDVQQGEwJVUzEUMBIGA1UEChMLRXhhbXBsZSBPcmcwgZ8wDQYJKoZIhvcN\n"
"AQEBBQADgY0AMIGJAoGBAL6ULdOxmpeZ+G/ypV12eNO4qnHSVIPTrYPkQuweXqPy\n"
"atwGFheG+hLVsNIh9GGOS0tCe7a3hBBKN0BJg1ppfk2x39cDx7hefYqjBuZvp/0O\n"
"8Ja3qlQiJLezITZKLxMBrsibcvcuH8zpfUdys2yaN+YGeqNfjQuoNN3Byl1TwuGJ\n"
"AgMBAAGjZTBjMB0GA1UdDgQWBBSQKCUCLNM7uKrAt5o7qv/yQm6qEzASBgNVHRMB\n"
"Af8ECDAGAQEBAgEIMB4GA1UdEQQXMBWBE2V4YW1wbGVAZXhhbXBsZS5jb20wDgYD\n"
"VR0PAQH/BAQDAgEGMA0GCSqGSIb3DQEBBQUAA4GBAAh+SIeT1Ao5qInw8oMSoTdO\n"
"lQ6h67ec/Jk5KmK4OoskuimmHI0Sp0C5kOCLehXbsVWW8pXsNC2fv0d2HkdaSUcX\n"
"hwLzqgyZXd4mupIYlaOTZhuHDwWPCAOZS4LVsi2tndTRHKCP12441JjNKhmZRhkR\n"
"u5zzD60nWgM9dKTaxuZM\n"
"-----END CERTIFICATE-----\n";
{
printf("-- Cert --\n");
printf(" Valid from: %s, until %s\n",
}
{
QString s;
switch (v) {
s = QStringLiteral("Validated");
break;
s = QStringLiteral("Root CA is marked to reject the specified purpose");
break;
s = QStringLiteral("Certificate not trusted for the required purpose");
break;
s = QStringLiteral("Invalid signature");
break;
s = QStringLiteral("Invalid CA certificate");
break;
s = QStringLiteral("Invalid certificate purpose");
break;
s = QStringLiteral("Certificate is self-signed");
break;
s = QStringLiteral("Certificate has been revoked");
break;
s = QStringLiteral("Maximum certificate chain length exceeded");
break;
s = QStringLiteral("Certificate has expired");
break;
s = QStringLiteral("CA has expired");
break;
default:
s = QStringLiteral("General certificate validation error");
break;
}
return s;
}
{
public:
SecureTest()
{
sock_done = false;
ssl_done = false;
#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
#else
connect(sock, QOverload<QAbstractSocket::SocketError>::of(&QTcpSocket::error), this, &SecureTest::sock_error);
#endif
}
~SecureTest() override
{
delete ssl;
delete sock;
}
{
int port;
if (n != -1) {
#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
#else
#endif
} else {
host = _host;
port = 443;
}
printf("Trying %s:%d...\n", qPrintable(host), port);
sock->connectToHost(host, port);
}
void quit();
void sock_connected()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
printf("Connected, starting TLS handshake...\n");
// We add this one to show how, and to make it work with
// the server example.
printf("Warning: no root certs\n");
else
ssl->setTrustedCertificates(rootCerts);
}
void sock_readyRead()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
ssl->writeIncoming(sock->readAll());
}
void sock_connectionClosed()
{
printf("\nConnection closed.\n");
sock_done = true;
if (ssl_done && sock_done)
emit quit();
}
void sock_error(QAbstractSocket::SocketError x)
{
sock_connectionClosed();
return;
}
printf("\nSocket error.\n");
emit quit();
}
void ssl_handshaken()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
printf("Successful SSL handshake using %s (%i of %i bits)\n",
qPrintable(ssl->cipherSuite()),
ssl->cipherBits(),
ssl->cipherMaxBits());
if (!cert.isNull())
showCertInfo(cert);
}
QString str = QStringLiteral("Peer Identity: ");
str += QStringLiteral("Valid");
str += QStringLiteral("Error: Wrong certificate");
str += QStringLiteral("Error: Invalid certificate.\n -> Reason: ") +
validityToString(ssl->peerCertificateValidity());
else
str += QStringLiteral("Error: No certificate");
printf("%s\n", qPrintable(str));
ssl->continueAfterStep();
printf("Let's try a GET request now.\n");
}
void ssl_certificateRequested()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
printf("Server requested client certificate.\n");
printf("Allowed issuers:\n");
}
ssl->continueAfterStep();
}
void ssl_readyRead()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
}
void ssl_readyReadOutgoing()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
}
void ssl_closed()
{
printf("SSL session closed.\n");
ssl_done = true;
if (ssl_done && sock_done)
emit quit();
}
void ssl_error()
{
// We just do this to help doxygen...
QCA::TLS *ssl = SecureTest::ssl;
printf("SSL Handshake Error!\n");
emit quit();
} else {
printf("SSL Error!\n");
emit quit();
}
}
private:
QTcpSocket *sock;
QCA::TLS *ssl;
QCA::Certificate cert;
bool sock_done, ssl_done;
};
#include "ssltest.moc"
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
printf("TLS not supported!\n");
return 1;
}
SecureTest *s = new SecureTest;
s->start(host);
app.exec();
delete s;
return 0;
}
Q_OBJECTQ_OBJECT
int cipherMaxBits() const
The number of bits of security that the cipher could use.
void write(const QByteArray &a) override
This method writes unencrypted (plain) data to the SecureLayer implementation.
int toInt(bool *ok, int base) const const
void readyRead()
This signal is emitted when SecureLayer has decrypted (application side) data ready to be read.
QCA_EXPORT CertificateCollection systemStore()
Get system-wide root Certificate Authority (CA) certificates.
Q_SLOTSQ_SLOTS
@ ErrorPathLengthExceeded
The path length from the root CA to this certificate is too long.
Definition: qca_cert.h:506
void setTrustedCertificates(const CertificateCollection &trusted)
Set up the set of trusted certificates that will be used to verify that the certificate provided is v...
QStringRef midRef(int position, int n) const const
QStringView mid(qsizetype start) const const
Q_SCRIPTABLE Q_NOREPLY void start()
SocketError
static Certificate fromPEM(const QString &s, ConvertResult *result=nullptr, const QString &provider=QString())
Import the certificate from PEM format.
QByteArray toLatin1() const const
QMetaObject::Connection connect(const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QByteArray read() override
This method reads decrypted (plain) data from the SecureLayer implementation.
int cipherBits() const
The number of effective bits of security being used for this connection.
QString commonName() const
The common name of the subject of the certificate.
void quit()
Definition: qca_cert.h:1928
void certificateRequested()
Emitted when the server requests a certificate.
QList< CertificateInfoOrdered > issuerList() const
QString fromLocal8Bit(const char *str, int size)
void startClient(const QString &host=QString())
Start the TLS/SSL connection as a client.
void closed()
This signal is emitted when the SecureLayer connection is closed.
void writeIncoming(const QByteArray &a) override
This method accepts encoded (typically encrypted) data for processing.
QByteArray readOutgoing(int *plainBytes=nullptr) override
This method provides encoded (typically encrypted) data.
void readyRead()
void errorOccurred(QAbstractSocket::SocketError socketError)
bool isEmpty() const const
Definition: qca_securelayer.h:289
Definition: qca_cert.h:547
QCA_EXPORT bool haveSystemStore()
Test if QCA can access the root CA certificates.
Definition: qca_cert.h:856
void connected()
int indexOf(QChar ch, int from, Qt::CaseSensitivity cs) const const
CertificateChain peerCertificateChain() const
The CertificateChain from the peer (other end of the connection to the trusted root certificate).
@ ErrorSelfSigned
The certificate is self-signed, and is not found in the list of trusted certificates.
Definition: qca_cert.h:504
Q_SIGNALSQ_SIGNALS
ScriptableExtension * host() const
const Certificate & primary() const
Return the primary (end-user) Certificate.
Definition: qca_cert.h:1249
void readyReadOutgoing()
This signal is emitted when SecureLayer has encrypted (network side) data ready to be read.
const QList< QKeySequence > & quit()
QAbstractSocket::SocketError error() const const
Definition: qca_core.h:659
QString fromLatin1(const char *str, int size)
QCA_EXPORT bool isSupported(const char *features, const QString &provider=QString())
Test if a capability (algorithm) is available.
Validity peerCertificateValidity() const
After the SSL/TLS handshake is valid, this method allows you to check if the received certificate fro...
IdentityResult peerIdentityResult() const
After the SSL/TLS handshake is complete, this method allows you to determine if the other end of the ...
QString cipherSuite() const
The cipher suite that has been negotiated for this connection.
QString toString(Qt::DateFormat format) const const
QString mid(int position, int n) const const
void addCertificate(const Certificate &cert)
Append a Certificate to this collection.
char * data()
QDateTime notValidBefore() const
The earliest date that the certificate is valid.
QDateTime notValidAfter() const
The latest date that the certificate is valid.
This file is part of the KDE documentation.
Documentation copyright © 1996-2023 The KDE developers.
Generated on Mon May 8 2023 03:50:08 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006
Documentation copyright © 1996-2023 The KDE developers.
Generated on Mon May 8 2023 03:50:08 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.