MultiMC5/application/CertWorkaround.cpp

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#include <stdexcept>
#include <iostream>
#include <QByteArray>
#include <QSslSocket>
#include <QDebug>
#include <Security/Security.h>
// CFRelease will crash if passed NULL
#define SafeCFRelease(ref) \
if (ref) \
CFRelease(ref);
/*!
* \brief LoadCertificatesFromKeyChain Load all certificates from the KeyChain path provided
* and return them as
* QSslCertificates.
* \param keyChainPath The KeyChain path. Pass an empty string to use the
* user's keychain.
* \return A list of new QSslCertificates generated from the
* KeyChain DER data.
*/
static QList<QSslCertificate>
LoadCertificatesFromKeyChain(const std::string &keyChainPath = std::string())
{
QList<QSslCertificate> qtCerts;
SecKeychainRef certsKeyChain = NULL;
SecKeychainSearchRef searchItem = NULL;
SecKeychainItemRef itemRef = NULL;
CSSM_DATA certData = {0, 0};
try
{
OSStatus status = errSecSuccess;
// if a keychain path was provided, obtain a pointer
if (!keyChainPath.empty())
{
status = SecKeychainOpen(keyChainPath.c_str(), &certsKeyChain);
if (status != errSecSuccess)
{
throw status;
}
}
// build a search query reference for certificates
status = SecKeychainSearchCreateFromAttributes(certsKeyChain, kSecCertificateItemClass,
NULL, &searchItem);
if (status != errSecSuccess)
{
throw status;
}
// loop through the certificates
while (SecKeychainSearchCopyNext(searchItem, &itemRef) != errSecItemNotFound)
{
// copy the KeyChain item data into a CSSM_DATA struct - this will be the certs Der
// data
status = SecKeychainItemCopyContent(itemRef, NULL, NULL,
reinterpret_cast<UInt32 *>(&certData.Length),
reinterpret_cast<void **>(&certData.Data));
if (status != errSecSuccess)
{
throw status;
}
// create a Qt byte array from the data - the data is NOT copied
const QByteArray byteArray = QByteArray::fromRawData(
reinterpret_cast<const char *>(certData.Data), certData.Length);
// create a Qt certificate from the data and add it to the list
QSslCertificate qtCert(byteArray, QSsl::Der);
qDebug() << "COMMON NAME: "
<< qtCert.issuerInfo(QSslCertificate::CommonName).join('\n')
<< " ORG NAME: "
<< qtCert.issuerInfo(QSslCertificate::Organization).join('\n');
qtCerts << qtCert;
}
}
catch (OSStatus status)
{
CFStringRef errorMessage = SecCopyErrorMessageString(status, NULL);
std::cerr << CFStringGetCStringPtr(errorMessage, kCFStringEncodingMacRoman)
<< std::endl;
SafeCFRelease(errorMessage);
}
SecKeychainItemFreeContent(NULL, certData.Data);
SafeCFRelease(itemRef);
SafeCFRelease(searchItem);
SafeCFRelease(certsKeyChain);
return qtCerts;
}
void RebuildQtCertificates()
{
const QList<QSslCertificate> existingCerts = QSslSocket::defaultCaCertificates();
QList<QSslCertificate> certs = LoadCertificatesFromKeyChain();
certs += LoadCertificatesFromKeyChain(
"/System/Library/Keychains/SystemRootCertificates.keychain");
Q_FOREACH (const QSslCertificate qtCert, certs)
{
if (!existingCerts.contains(qtCert))
{
qDebug() << "cert not known to Qt - adding";
qDebug() << "COMMON NAME: "
<< qtCert.issuerInfo(QSslCertificate::CommonName).join('\n')
<< " ORG NAME: "
<< qtCert.issuerInfo(QSslCertificate::Organization).join('\n');
QSslSocket::addDefaultCaCertificate(qtCert);
}
}
}