/// <summary>
/// 通过网页重定向获取 <see cref="Wlan_eduManager"/> 实例。
/// </summary>
/// <returns>Wlan-edu 管理器实例。</returns>
public static Wlan_eduManager CreateManagerFromRedirection()
{
string url;
Encoding encoding = Encoding.UTF8;
HtmlDocument document;
// 通过重定向获取登录地址。
url = "http://1.1.1.1/";
document = new HtmlDocument();
document.Load(HttpRequestUtil.GetHtmlContentStreamReader(url, encoding));
string refresh_content = document.DocumentNode.SelectSingleNode(@"html/head/meta[@http-equiv='refresh']")?.GetAttributeValue("content", null);
;
// 获取登录地址。
url = Regex.Match(refresh_content.Split(';')[1], @"url=(?<Url>\S*)").Groups["Url"].Value;
var queryArgs =
Regex.Matches(
new Uri(url, UriKind.Absolute).Query,
@"(?<=^\?|&)(?<Key>\w+?)=(?<Value>\S*?)(?=&|$)"
)
.OfType <Match>()
.ToDictionary(
(match => match.Groups["Key"].Value.ToLower()),
(match => match.Groups["Value"].Value)
);
string wlanAcName = queryArgs["wlanacname"];
string wlanUserIp = queryArgs["wlanuserip"];
;
return(new Wlan_eduManager(wlanAcName, wlanUserIp, url, encoding));
}
