protected override void SetSwitchingSystemSettingsTo(SystemSettings settings, Proxy proxy)
{
// argument checks
Debug.Assert(settings != null);
SystemSettingsForWindows actualSettings = settings as SystemSettingsForWindows;
if (actualSettings == null)
{
throw CreateArgumentIsNotSystemSettingsForWindowsException(nameof(settings));
}
Debug.Assert(proxy != null);
// set the base class level settings
base.SetSwitchingSystemSettingsTo(settings, proxy);
// set this class level settings
string proxyEndPoint = proxy.MainListenerEndPoint.ToString();
Debug.Assert(actualSettings.AutoConfigURL == null);
actualSettings.ProxyEnable = 1;
actualSettings.ProxyServer = $"http={proxyEndPoint};https={proxyEndPoint}";
actualSettings.ProxyOverride = this.ProxyOverride;
Debug.Assert(actualSettings.AutoDetect == false);
actualSettings.HttpProxyEnvironmentVariable = $"http://{proxyEndPoint}";
actualSettings.HttpsProxyEnvironmentVariable = $"http://{proxyEndPoint}";
return;
}
protected override IActualProxy GetSystemActualProxy(SystemSettings systemSettings)
{
// argument checks
Debug.Assert(systemSettings != null);
SystemSettingsForWindows actualSystemSettings = systemSettings as SystemSettingsForWindows;
if (actualSystemSettings == null)
{
return(base.GetSystemActualProxy(systemSettings));
}
// detect actual proxy
IActualProxy actualProxy = null;
if ((actualSystemSettings.ProxyEnable ?? 0) == 0)
{
// proxy is not explicitly specified
bool autoDetect = actualSystemSettings.AutoDetect;
string autoConfigURL = actualSystemSettings.AutoConfigURL;
if (autoDetect || string.IsNullOrEmpty(autoConfigURL) == false)
{
actualProxy = new AutoConfigActualProxy(autoDetect, autoConfigURL);
}
}
else
{
// proxy is explicitly specified
// detect actually effective proxy by the base class implementation
// Note that the explicitly specified proxy setting is not used
// in some case such as dialup or VPN connection.
;
}
return((actualProxy != null) ? actualProxy : base.GetSystemActualProxy(systemSettings));
}
protected override void SetCurrentSystemSettingsTo(SystemSettings settings)
{
// argument checks
Debug.Assert(settings != null);
SystemSettingsForWindows actualSettings = settings as SystemSettingsForWindows;
if (actualSettings == null)
{
throw CreateArgumentIsNotSystemSettingsForWindowsException(nameof(settings));
}
// set the base class level settings
base.SetCurrentSystemSettingsTo(settings);
// set this class level settings
// read Internet Options from the registry
using (RegistryKey key = OpenInternetSettingsKey(writable: false)) {
// AutoConfigURL
actualSettings.AutoConfigURL = (string)key.GetValue(RegistryNames.AutoConfigURL, defaultValue: null);
// ProxyEnable
actualSettings.ProxyEnable = (int?)key.GetValue(RegistryNames.ProxyEnable, defaultValue: null);
// ProxyServer
actualSettings.ProxyServer = (string)key.GetValue(RegistryNames.ProxyServer, defaultValue: null);
// ProxyOverride
actualSettings.ProxyOverride = (string)key.GetValue(RegistryNames.ProxyOverride, defaultValue: null);
// AutoDetect
using (RegistryKey connectionsKey = OpenConnectionsKey(key, writable: false)) {
bool autoDetect = false;
byte[] bytes = (byte[])connectionsKey.GetValue(RegistryNames.DefaultConnectionSettings, defaultValue: null);
if (bytes != null && AutoDetectByteIndex < bytes.Length)
{
autoDetect = (bytes[AutoDetectByteIndex] & AutoDetectFlag) != 0;
}
actualSettings.AutoDetect = autoDetect;
}
}
// read User Environment Variables from the registry
using (RegistryKey key = OpenEnvironmentKey(writable: false)) {
// HttpProxyEnvironmentVariable
actualSettings.HttpProxyEnvironmentVariable = (string)key.GetValue(EnvironmentNames.HttpProxy, defaultValue: null);
// HttpsProxyEnvironmentVariable
actualSettings.HttpsProxyEnvironmentVariable = (string)key.GetValue(EnvironmentNames.HttpsProxy, defaultValue: null);
}
return;
}
public SystemSettingsForWindows(SystemSettingsForWindows src) : base(src)
{
// argument checks
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
// clone members
this.AutoConfigURL = src.AutoConfigURL;
this.ProxyEnable = src.ProxyEnable;
this.ProxyServer = src.ProxyServer;
this.ProxyOverride = src.ProxyOverride;
this.AutoDetect = src.AutoDetect;
this.HttpProxyEnvironmentVariable = src.HttpProxyEnvironmentVariable;
this.HttpsProxyEnvironmentVariable = src.HttpsProxyEnvironmentVariable;
return;
}
public SetupContextForWindows(CommandForWindowsSettings settings, SystemSettingsSwitcherForWindows switcher) : base(settings, switcher)
{
// argument checks
Debug.Assert(settings != null);
SystemSettingsSwitcherForWindowsSettings switcherSettings = settings.SystemSettingsSwitcher;
Debug.Assert(switcherSettings != null);
Debug.Assert(switcher != null);
// ProxyOverride
this.DefaultProxyOverride = SystemSettingsSwitcherForWindows.GetDefaultProxyOverride();
if (settings.InitialSetupLevel == 0 || base.NeedActualProxy)
{
// User must set ProxyOverride
this.NeedProxyOverride = true;
if (string.IsNullOrEmpty(switcherSettings.ProxyOverride))
{
// give default value
// DefaultProxyOverride may be set in config file
switcherSettings.ProxyOverride = this.DefaultProxyOverride;
}
}
if (settings.InitialSetupLevel == 1)
{
// After MAPE supports auto detect and auto config script,
// ProxyOverride should be reviewed because only overrides which
// are not handled by auto config should be specified.
SystemSettingsForWindows current = switcher.GetCurrentSystemSettings();
if (
(current.AutoDetect || string.IsNullOrEmpty(current.AutoConfigURL) == false) &&
string.CompareOrdinal(switcherSettings.ProxyOverride, this.DefaultProxyOverride) != 0
)
{
this.NeedProxyOverride = true;
this.ShouldResetProxyOverride = true;
}
}
return;
}
protected override bool SwitchTo(SystemSettings settings, SystemSettings backup)
{
// argument checks
Debug.Assert(settings != null);
SystemSettingsForWindows actualSettings = settings as SystemSettingsForWindows;
if (actualSettings == null)
{
throw CreateArgumentIsNotSystemSettingsForWindowsException(nameof(settings));
}
// backup can be null
SystemSettingsForWindows actualBackup = backup as SystemSettingsForWindows;
if (backup != null && actualBackup == null)
{
throw CreateArgumentIsNotSystemSettingsForWindowsException(nameof(backup));
}
// adjust settings
string proxyOverride = actualSettings.ProxyOverride;
if (actualBackup != null && string.IsNullOrEmpty(actualBackup.ProxyOverride) == false)
{
// use the current ProxyOverride if it is defined explicitly
proxyOverride = actualBackup.ProxyOverride;
}
// set Internet Options in the registry
using (RegistryKey key = OpenInternetSettingsKey(writable: true)) {
// AutoConfigURL
SetValue(key, RegistryNames.AutoConfigURL, actualSettings.AutoConfigURL);
// ProxyEnable
SetValue(key, RegistryNames.ProxyEnable, actualSettings.ProxyEnable);
// ProxyServer
SetValue(key, RegistryNames.ProxyServer, actualSettings.ProxyServer);
// ProxyOverride
SetValue(key, RegistryNames.ProxyOverride, proxyOverride);
// AutoDetect
using (RegistryKey connectionsKey = OpenConnectionsKey(key, writable: true)) {
byte[] bytes = (byte[])connectionsKey.GetValue(RegistryNames.DefaultConnectionSettings, defaultValue: null);
if (bytes != null && AutoDetectByteIndex < bytes.Length)
{
byte oldFlags = bytes[AutoDetectByteIndex];
byte newFlags = actualSettings.AutoDetect ? (byte)(oldFlags | AutoDetectFlag) : (byte)(oldFlags & ~AutoDetectFlag);
if (oldFlags != newFlags)
{
// set AutoDetect flag
bytes[AutoDetectByteIndex] = newFlags;
// update revision
// Do not increment the revision.
// Incrementing revision confuses Windows' Internet Option System.
// It seems that it detects difference based on this value.
#if false
uint revision = BitConverter.ToUInt32(bytes, ConnectionsRevisionIndex);
byte[] revisionBytes = BitConverter.GetBytes(++revision);
Debug.Assert(revisionBytes.Length == 4);
Array.Copy(revisionBytes, 0, bytes, ConnectionsRevisionIndex, 4);
#endif
// save the bytes
connectionsKey.SetValue(RegistryNames.DefaultConnectionSettings, bytes, RegistryValueKind.Binary);
}
}
}
}
// set User Environment Variables in the registry
using (RegistryKey key = OpenEnvironmentKey(writable: true)) {
// HttpProxyEnvironmentVariable
SetValue(key, EnvironmentNames.HttpProxy, actualSettings.HttpProxyEnvironmentVariable);
// HttpsProxyEnvironmentVariable
SetValue(key, EnvironmentNames.HttpsProxy, actualSettings.HttpsProxyEnvironmentVariable);
}
return(true);
}
