1.前提条件

为了实现在cefsharp里面设置代理，首先在创建一个ChromiumWebBrowser的时候，检查是否使用了以下代码

settings.CefCommandLineArgs.Add("no-proxy-server", "1");//不使用代理

在RequestHandler下，实现GetAuthCredentials

public class BaseRequestHandler : RequestHandler
{
private string _userName;
private string _password;

public BaseRequestHandler(string userName, string password)
{
this._userName = userName;
this._password = password;
}

public BaseRequestHandler()
{

}



protected override bool GetAuthCredentials(IWebBrowser chromiumWebBrowser, IBrowser browser, string originUrl, bool isProxy, string host,
int port, string realm, string scheme, IAuthCallback callback)
{
if (isProxy == true)
{
callback.Continue(_userName, _password);

return true;
}

return false;
}
}

 

2.增加/卸载代理

万事俱备后，在对应的地方加上。如果想卸载掉代理， v["mode"] = "direct"; 替换即可

private async Task SetProxy(ChromiumWebBrowser cwb, string address)
{
try
{
await Cef.UIThreadTaskFactory.StartNew(delegate
{
var rc = cwb.GetBrowser().GetHost().RequestContext;
var v = new Dictionary<string, object>();
v["mode"] = "fixed_servers";
v["server"] = address;
string error;
bool success = rc.SetPreference("proxy", v, out error);
Console.WriteLine(success);
});
}
catch (Exception e)
{
//
}
}

 

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