static Uri GetProxyUriFromScript(NSString script, Uri targetUri)
{
CFProxy[] proxies = CFNetwork.GetProxiesForAutoConfigurationScript(script, targetUri);
if (proxies == null)
{
return(targetUri);
}
for (int i = 0; i < proxies.Length; i++)
{
switch (proxies[i].ProxyType)
{
case CFProxyType.HTTPS:
case CFProxyType.HTTP:
case CFProxyType.FTP:
// create a Uri based on the hostname/port/etc info
return(GetProxyUri(proxies[i]));
case CFProxyType.SOCKS:
default:
// unsupported proxy type, try the next one
break;
case CFProxyType.None:
// no proxy should be used
return(targetUri);
}
}
return(null);
}
public Uri GetProxy(Uri targetUri)
{
if (targetUri == null)
{
throw new ArgumentNullException("targetUri");
}
try
{
CFProxySettings settings = CFNetwork.GetSystemProxySettings();
CFProxy[] proxies = CFNetwork.GetProxiesForUri(targetUri, settings);
Uri uri;
if (proxies == null)
{
return(targetUri);
}
for (int i = 0; i < proxies.Length; i++)
{
switch (proxies[i].ProxyType)
{
case CFProxyType.AutoConfigurationJavaScript:
if ((uri = GetProxyUriFromScript(proxies[i].AutoConfigurationJavaScript, targetUri)) != null)
{
return(uri);
}
break;
case CFProxyType.AutoConfigurationUrl:
// unsupported proxy type (requires fetching script from remote url)
break;
case CFProxyType.HTTPS:
case CFProxyType.HTTP:
case CFProxyType.FTP:
// create a Uri based on the hostname/port/etc info
return(GetProxyUri(proxies[i]));
case CFProxyType.SOCKS:
// unsupported proxy type, try the next one
break;
case CFProxyType.None:
// no proxy should be used
return(targetUri);
}
}
}
catch
{
// ignore errors while retrieving proxy data
}
// no supported proxies for this Uri, fall back to trying to connect to targetUri directly.
return(targetUri);
}
public Uri GetProxy(Uri targetUri)
{
NetworkCredential credentials = null;
Uri proxy = null;
if (targetUri == null)
{
throw new ArgumentNullException("targetUri");
}
try {
CFProxySettings settings = CFNetwork.GetSystemProxySettings();
CFProxy[] proxies = CFNetwork.GetProxiesForUri(targetUri, settings);
if (proxies != null)
{
for (int i = 0; i < proxies.Length && proxy == null; i++)
{
switch (proxies[i].ProxyType)
{
case CFProxyType.AutoConfigurationJavaScript:
proxy = GetProxyUriFromScript(proxies[i].AutoConfigurationJavaScript, targetUri, out credentials);
break;
case CFProxyType.AutoConfigurationUrl:
// unsupported proxy type (requires fetching script from remote url)
break;
case CFProxyType.HTTPS:
case CFProxyType.HTTP:
case CFProxyType.FTP:
// create a Uri based on the hostname/port/etc info
proxy = GetProxyUri(proxies[i], out credentials);
break;
case CFProxyType.SOCKS:
// unsupported proxy type, try the next one
break;
case CFProxyType.None:
// no proxy should be used
proxy = targetUri;
break;
}
}
if (proxy == null)
{
// no supported proxies for this Uri, fall back to trying to connect to targetUri directly
proxy = targetUri;
}
}
else
{
proxy = targetUri;
}
} catch {
// ignore errors while retrieving proxy data
proxy = targetUri;
}
if (!userSpecified)
{
this.credentials = credentials;
}
return(proxy);
}
