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/*
* Copyright (c) 2012 Isode Limited, London, England.
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
#include <string>
#include <Swift/QtUI/CAPICertificateSelector.h>
#define SECURITY_WIN32
#include <Windows.h>
#include <WinCrypt.h>
#include <cryptuiapi.h>
#include <Swiften/StringCodecs/Hexify.h>
#include <boost/algorithm/string.hpp>
#include <Swift/Controllers/Intl.h>
#include <Swift/QtUI/QtSwiftUtil.h>
#include <Swiften/Base/Log.h>
namespace Swift {
/////Hmm, maybe we should not exlude the "location" column
#define exclude_columns CRYPTUI_SELECT_LOCATION_COLUMN | CRYPTUI_SELECT_INTENDEDUSE_COLUMN
#define SHA1_HASH_LENGTH 20
static std::string getCertUri(PCCERT_CONTEXT cert, const char * cert_store_name) {
DWORD cbHash = SHA1_HASH_LENGTH;
BYTE aHash[SHA1_HASH_LENGTH];
std::string result("certstore:");
result += cert_store_name;
result += ":sha1:";
if (CertGetCertificateContextProperty(cert, CERT_HASH_PROP_ID, aHash, &cbHash) == FALSE ) {
return "";
}
ByteArray byteArray = createByteArray((char *)(&aHash[0]), cbHash);
result += Hexify::hexify(byteArray);
return result;
}
std::string selectCAPICertificate() {
const char* certStoreName = "MY";
DWORD storeFlags = CERT_STORE_OPEN_EXISTING_FLAG | CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
HCERTSTORE hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0, storeFlags, certStoreName);
if (!hstore) {
return "";
}
HWND hwnd = GetForegroundWindow();
if (!hwnd) {
hwnd = GetActiveWindow();
}
std::string certificateDialogTitle = QT_TRANSLATE_NOOP("", "TLS Client Certificate Selection");
std::string certificateDialogPrompt = QT_TRANSLATE_NOOP("", "Select a certificate to use for authentication");
int titleLength = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, certificateDialogTitle.c_str(), -1, NULL, 0);
int promptLength = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, certificateDialogPrompt.c_str(), -1, NULL, 0);
wchar_t* titleChars = new wchar_t[titleLength];
wchar_t* promptChars = new wchar_t[promptLength];
//titleChars[titleLength] = '\0';
//promptChars[promptLength] = '\0';
titleLength = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, certificateDialogTitle.c_str(), -1, titleChars, titleLength);
promptLength = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, certificateDialogPrompt.c_str(), -1, promptChars, promptLength);
if (titleLength == 0 || promptLength == 0) {
int error = GetLastError();
switch (error) {
case ERROR_INSUFFICIENT_BUFFER: SWIFT_LOG(error) << "Insufficient buffer for rendering cert dialog" << std::endl;break;
case ERROR_INVALID_FLAGS: SWIFT_LOG(error) << "Invalid flags for rendering cert dialog" << std::endl;break;
case ERROR_INVALID_PARAMETER: SWIFT_LOG(error) << "Invalid parameter for rendering cert dialog" << std::endl;break;
case ERROR_NO_UNICODE_TRANSLATION: SWIFT_LOG(error) << "Invalid unicode for rendering cert dialog" << std::endl;break;
default: SWIFT_LOG(error) << "Unexpected multibyte conversion errorcode" << std::endl;
}
}
/* Call Windows dialog to select a suitable certificate */
PCCERT_CONTEXT cert = CryptUIDlgSelectCertificateFromStore(hstore, hwnd, titleChars, promptChars, exclude_columns, 0, NULL);
delete[] titleChars;
delete[] promptChars;
if (hstore) {
CertCloseStore(hstore, 0);
}
std::string result;
if (cert) {
result = getCertUri(cert, certStoreName);
CertFreeCertificateContext(cert);
}
return result;
}
bool isCAPIURI(std::string uri) {
return (boost::iequals(uri.substr(0, 10), "certstore:"));
}
}
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Swift