moonlight-qt/identitymanager.cpp
2018-04-28 23:29:45 -07:00

132 lines
3.5 KiB
C++

#include "identitymanager.h"
#include "utils.h"
#include <QDebug>
#include <QFile>
#include <QTextStream>
#include <QSslCertificate>
#include <QSslKey>
#include <openssl/pem.h>
#include <openssl/rsa.h>
#include <openssl/pkcs12.h>
IdentityManager::IdentityManager(QDir directory)
{
QFile uniqueIdFile(directory.filePath("uniqueid"));
if (uniqueIdFile.open(QIODevice::ReadOnly))
{
m_CachedUniqueId = QTextStream(&uniqueIdFile).readAll();
qDebug() << "Loaded cached unique ID: " << m_CachedUniqueId;
}
else
{
for (int i = 0; i < 16; i++)
{
int n = qrand() % 16;
m_CachedUniqueId.append(QString::number(n, 16));
}
qDebug() << "Generated new unique ID: " << m_CachedUniqueId;
uniqueIdFile.open(QIODevice::ReadWrite);
QTextStream(&uniqueIdFile) << m_CachedUniqueId;
}
QFile certificateFile(m_RootDirectory.filePath("cert"));
QFile privateKeyFile(m_RootDirectory.filePath("key"));
if (certificateFile.open(QIODevice::ReadOnly) && privateKeyFile.open(QIODevice::ReadOnly))
{
// Not cached yet, but it's on disk
m_CachedPemCert = certificateFile.readAll();
m_CachedPrivateKey = privateKeyFile.readAll();
// Make sure it really loads
if (!QSslKey(m_CachedPrivateKey, QSsl::Rsa).isNull() && !QSslCertificate(m_CachedPemCert).isNull())
{
qDebug() << "Loaded cached identity key pair from disk";
return;
}
qDebug() << "Regenerating corrupted local key pair";
}
privateKeyFile.close();
certificateFile.close();
X509* cert = X509_new();
THROW_BAD_ALLOC_IF_NULL(cert);
EVP_PKEY* pk = EVP_PKEY_new();
THROW_BAD_ALLOC_IF_NULL(pk);
BIGNUM* bne = BN_new();
THROW_BAD_ALLOC_IF_NULL(bne);
RSA* rsa = RSA_new();
THROW_BAD_ALLOC_IF_NULL(rsa);
BN_set_word(bne, RSA_F4);
RSA_generate_key_ex(rsa, 2048, bne, nullptr);
EVP_PKEY_assign_RSA(pk, rsa);
X509_set_version(cert, 2);
ASN1_INTEGER_set(X509_get_serialNumber(cert), 0);
X509_gmtime_adj(X509_get_notBefore(cert), 0);
X509_gmtime_adj(X509_get_notAfter(cert), 60 * 60 * 24 * 365 * 20); // 20 yrs
X509_set_pubkey(cert, pk);
X509_NAME* name = X509_get_subject_name(cert);
X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC, reinterpret_cast<unsigned char *>(const_cast<char*>("NVIDIA GameStream Client")), -1, -1, 0);
X509_set_issuer_name(cert, name);
X509_sign(cert, pk, EVP_sha1());
BIO* biokey = BIO_new(BIO_s_mem());
THROW_BAD_ALLOC_IF_NULL(biokey);
PEM_write_bio_PrivateKey(biokey, pk, NULL, NULL, 0, NULL, NULL);
BIO* biocert = BIO_new(BIO_s_mem());
THROW_BAD_ALLOC_IF_NULL(biocert);
PEM_write_bio_X509(biocert, cert);
privateKeyFile.open(QIODevice::WriteOnly);
certificateFile.open(QIODevice::WriteOnly);
BUF_MEM* mem;
BIO_get_mem_ptr(biokey, &mem);
m_CachedPrivateKey = QByteArray(mem->data, mem->length);
QTextStream(&privateKeyFile) << m_CachedPrivateKey;
BIO_get_mem_ptr(biocert, &mem);
m_CachedPemCert = QByteArray(mem->data, mem->length);
QTextStream(&certificateFile) << m_CachedPemCert;
X509_free(cert);
EVP_PKEY_free(pk);
BN_free(bne);
BIO_free(biokey);
BIO_free(biocert);
qDebug() << "Wrote new identity credentials to disk";
}
QString
IdentityManager::getUniqueId()
{
return m_CachedUniqueId;
}
QByteArray
IdentityManager::getCertificate()
{
return m_CachedPemCert;
}
QByteArray
IdentityManager::getPrivateKey()
{
return m_CachedPrivateKey;
}