QWindowsSystemProxy Class Reference

Public Functions
void	init ()
	QWindowsSystemProxy ()
	~QWindowsSystemProxy ()

Public Variables
QString	autoConfigUrl
WINHTTP_AUTOPROXY_OPTIONS	autoProxyOptions
QList< QNetworkProxy >	defaultResult
bool	functional
HINTERNET	hHttpSession
bool	initialized
bool	isAutoConfig
QMutex	mutex
QStringList	proxyBypass
QStringList	proxyServerList

Detailed Description

Definition at line 365 of file qnetworkproxy_win.cpp.

Constructors and Destructors

QWindowsSystemProxy()

QWindowsSystemProxy::QWindowsSystemProxy

(

)

Definition at line 389 of file qnetworkproxy_win.cpp.

    : hHttpSession(0), initialized(false), functional(false), isAutoConfig(false)
{
    defaultResult << QNetworkProxy::NoProxy;
}

~QWindowsSystemProxy()

QWindowsSystemProxy::~QWindowsSystemProxy

(

)

Definition at line 395 of file qnetworkproxy_win.cpp.

{
    if (hHttpSession)
        ptrWinHttpCloseHandle(hHttpSession);
}

Functions

init()

void QWindowsSystemProxy::init

(

)

Definition at line 401 of file qnetworkproxy_win.cpp.

Referenced by init().

{
    if (initialized)
        return;
    initialized = true;

#ifdef Q_OS_WINCE
    // Windows CE does not have any of the following API
    return;
#else
    // load the winhttp.dll library
    QSystemLibrary lib(L"winhttp");
    if (!lib.load())
        return;                 // failed to load

    ptrWinHttpOpen = (PtrWinHttpOpen)lib.resolve("WinHttpOpen");
    ptrWinHttpCloseHandle = (PtrWinHttpCloseHandle)lib.resolve("WinHttpCloseHandle");
    ptrWinHttpGetProxyForUrl = (PtrWinHttpGetProxyForUrl)lib.resolve("WinHttpGetProxyForUrl");
    ptrWinHttpGetDefaultProxyConfiguration = (PtrWinHttpGetDefaultProxyConfiguration)lib.resolve("WinHttpGetDefaultProxyConfiguration");
    ptrWinHttpGetIEProxyConfigForCurrentUser = (PtrWinHttpGetIEProxyConfigForCurrentUser)lib.resolve("WinHttpGetIEProxyConfigForCurrentUser");
    ptrOpenSCManager = (PtrOpenSCManager) QSystemLibrary(L"advapi32").resolve("OpenSCManagerW");
    ptrEnumServicesStatusEx = (PtrEnumServicesStatusEx) QSystemLibrary(L"advapi32").resolve("EnumServicesStatusExW");
    ptrCloseServiceHandle = (PtrCloseServiceHandle) QSystemLibrary(L"advapi32").resolve("CloseServiceHandle");

    // Try to obtain the Internet Explorer configuration.
    WINHTTP_CURRENT_USER_IE_PROXY_CONFIG ieProxyConfig;
    const bool hasIEConfig = ptrWinHttpGetIEProxyConfigForCurrentUser(&ieProxyConfig);
    if (hasIEConfig) {
        if (ieProxyConfig.lpszAutoConfigUrl) {
            autoConfigUrl = QString::fromWCharArray(ieProxyConfig.lpszAutoConfigUrl);
            GlobalFree(ieProxyConfig.lpszAutoConfigUrl);
        }
        if (ieProxyConfig.lpszProxy) {
            // http://msdn.microsoft.com/en-us/library/aa384250%28VS.85%29.aspx speaks only about a "proxy URL",
            // not multiple URLs. However we tested this and it can return multiple URLs. So we use splitSpaceSemicolon
            // on it.
            proxyServerList = splitSpaceSemicolon(QString::fromWCharArray(ieProxyConfig.lpszProxy));
            GlobalFree(ieProxyConfig.lpszProxy);
        }
        if (ieProxyConfig.lpszProxyBypass) {
            proxyBypass = splitSpaceSemicolon(QString::fromWCharArray(ieProxyConfig.lpszProxyBypass));
            GlobalFree(ieProxyConfig.lpszProxyBypass);
        }
    }

    if (!hasIEConfig ||
        (currentProcessIsService() && proxyServerList.isEmpty() && proxyBypass.isEmpty())) {
        // no user configuration
        // attempt to get the default configuration instead
        // that config will serve as default if WPAD fails
        WINHTTP_PROXY_INFO proxyInfo;
        if (ptrWinHttpGetDefaultProxyConfiguration(&proxyInfo) &&
            proxyInfo.dwAccessType == WINHTTP_ACCESS_TYPE_NAMED_PROXY) {
            // we got information from the registry
            // overwrite the IE configuration, if any

            proxyBypass = splitSpaceSemicolon(QString::fromWCharArray(proxyInfo.lpszProxyBypass));
            proxyServerList = splitSpaceSemicolon(QString::fromWCharArray(proxyInfo.lpszProxy));
        }

        if (proxyInfo.lpszProxy)
            GlobalFree(proxyInfo.lpszProxy);
        if (proxyInfo.lpszProxyBypass)
            GlobalFree(proxyInfo.lpszProxyBypass);
    }

    hHttpSession = NULL;
    if (ieProxyConfig.fAutoDetect || !autoConfigUrl.isEmpty()) {
        // open the handle and obtain the options
        hHttpSession = ptrWinHttpOpen(L"Qt System Proxy access/1.0",
                                      WINHTTP_ACCESS_TYPE_NO_PROXY,
                                      WINHTTP_NO_PROXY_NAME,
                                      WINHTTP_NO_PROXY_BYPASS,
                                      0);
        if (!hHttpSession)
            return;

        isAutoConfig = true;
        memset(&autoProxyOptions, 0, sizeof autoProxyOptions);
        autoProxyOptions.fAutoLogonIfChallenged = false;
        //Although it is possible to specify dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT | WINHTTP_AUTOPROXY_CONFIG_URL
        //this has poor performance (WPAD is attempted for every url, taking 2.5 seconds per interface,
        //before the configured pac file is used)
        if (ieProxyConfig.fAutoDetect) {
            autoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT;
            autoProxyOptions.dwAutoDetectFlags = WINHTTP_AUTO_DETECT_TYPE_DHCP |
                                                 WINHTTP_AUTO_DETECT_TYPE_DNS_A;
        } else {
            autoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL;
            autoProxyOptions.lpszAutoConfigUrl = (LPCWSTR)autoConfigUrl.utf16();
        }
    }

    functional = isAutoConfig || !proxyServerList.isEmpty();
#endif
}

Properties

autoConfigUrl

QString QWindowsSystemProxy::autoConfigUrl

Definition at line 377 of file qnetworkproxy_win.cpp.

Referenced by init().

autoProxyOptions

WINHTTP_AUTOPROXY_OPTIONS QWindowsSystemProxy::autoProxyOptions

Definition at line 375 of file qnetworkproxy_win.cpp.

Referenced by init().

defaultResult

QList<QNetworkProxy> QWindowsSystemProxy::defaultResult

Definition at line 380 of file qnetworkproxy_win.cpp.

Referenced by init(), and QWindowsSystemProxy().

functional

bool QWindowsSystemProxy::functional

Definition at line 383 of file qnetworkproxy_win.cpp.

Referenced by init().

hHttpSession

HINTERNET QWindowsSystemProxy::hHttpSession

Definition at line 374 of file qnetworkproxy_win.cpp.

Referenced by init(), and ~QWindowsSystemProxy().

initialized

bool QWindowsSystemProxy::initialized

Definition at line 382 of file qnetworkproxy_win.cpp.

Referenced by init().

isAutoConfig

bool QWindowsSystemProxy::isAutoConfig

Definition at line 384 of file qnetworkproxy_win.cpp.

Referenced by init().

mutex

QMutex QWindowsSystemProxy::mutex

Definition at line 372 of file qnetworkproxy_win.cpp.

Referenced by init().

proxyBypass

QStringList QWindowsSystemProxy::proxyBypass

Definition at line 379 of file qnetworkproxy_win.cpp.

Referenced by init().

proxyServerList

QStringList QWindowsSystemProxy::proxyServerList

Definition at line 378 of file qnetworkproxy_win.cpp.

Referenced by init().

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The documentation for this class was generated from the following file:

• /src/network/kernel/qnetworkproxy_win.cpp