/// <summary>
/// 获取响应结果
/// </summary>
private HttpResult GetResponse(HttpWebResponse response, HttpRequestItem item)
{
var result = new HttpResult();
//获取StatusCode
result.StatusCode = response.StatusCode;
//获取StatusDescription
result.StatusDescription = response.StatusDescription;
//获取Headers
result.Header = response.Headers;
//获取CookieCollection
if (response.Cookies != null)
{
result.CookieCollection = response.Cookies;
}
//获取set-cookie
if (response.Headers["set-cookie"] != null)
{
result.Cookie = response.Headers["set-cookie"];
}
byte[] ResponseByte = GetResponseBytes(response);
result.ResponseBytes = ResponseByte;
var encoding = Encoding.UTF8;
if (item.Encoding != null)
{
encoding = item.Encoding;
}
result.Html = encoding.GetString(ResponseByte);
return(result);
}
/// <summary>
/// 设置代理
/// </summary>
private void SetProxy(HttpWebRequest request, HttpRequestItem item)
{
if (item.WebProxy != null)
{
request.Proxy = item.WebProxy;
}
}
/// <summary>
/// 设置多个证书
/// </summary>
/// <param name="item"></param>
private void SetCerList(HttpWebRequest request, HttpRequestItem item)
{
if (item.ClentCertificates != null && item.ClentCertificates.Count > 0)
{
foreach (X509Certificate c in item.ClentCertificates)
{
request.ClientCertificates.Add(c);
}
}
}
/// <summary>
/// 设置Cookie
/// </summary>
private void SetCookie(HttpWebRequest request, HttpRequestItem item)
{
if (!string.IsNullOrEmpty(item.Cookie))
{
request.Headers[HttpRequestHeader.Cookie] = item.Cookie;
}
if (item.CookieContainer != null)
{
request.CookieContainer = item.CookieContainer;
}
}
/// <summary>
/// 设置证书
/// </summary>
private void SetCer(HttpWebRequest request, HttpRequestItem item)
{
if (!string.IsNullOrWhiteSpace(item.CerPath))
{
//将证书添加到请求里
request.ClientCertificates.Add(new X509Certificate(item.CerPath));
}
else
{
//多个证书
SetCerList(request, item);
}
}
/// <summary>
/// 设置Post数据
/// </summary>
private void SetPostData(HttpWebRequest request, HttpRequestItem item)
{
if (request.Method.Trim().ToLower().Contains("post"))
{
if (item.PostDatas != null)
{
request.ContentLength = item.PostDatas.Length;
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(item.PostDatas, 0, item.PostDatas.Length);
}
}
}
}
public HttpResult Request(HttpRequestItem item)
{
var request = (HttpWebRequest)WebRequest.Create(item.URL);
try
{
//设置证书
SetCer(request, item);
//设置Header
if (item.Header != null && item.Header.Count > 0)
{
foreach (string key in item.Header.AllKeys)
{
request.Headers.Add(key, item.Header[key]);
}
}
//设置代理
SetProxy(request, item);
request.Method = item.Method;
request.Timeout = item.Timeout;
request.KeepAlive = item.KeepAlive;
request.ReadWriteTimeout = item.ReadWriteTimeout;
if (!string.IsNullOrWhiteSpace(item.Host))
{
request.Host = item.Host;
}
request.Accept = item.Accept;
request.ContentType = item.ContentType;
request.UserAgent = item.UserAgent;
request.Referer = item.Referer;
request.AllowAutoRedirect = item.AllowAutoRedirect;
if (item.MaximumAutomaticRedirections > 0)
{
request.MaximumAutomaticRedirections = item.MaximumAutomaticRedirections;
}
//设置安全凭证
request.Credentials = item.ICredentials;
//设置Cookie
SetCookie(request, item);
//设置Post数据
SetPostData(request, item);
//设置最大连接
if (item.Connectionlimit > 0)
{
request.ServicePoint.ConnectionLimit = item.Connectionlimit;
}
}
catch (Exception ex)
{
return(new HttpResult()
{
Html = ex.Message, StatusDescription = $"请求参数错误：{ex.Message}"
});
}
try
{
//请求数据
using (var response = (HttpWebResponse)request.GetResponse())
{
return(GetResponse(response, item));
}
}
catch (WebException ex)
{
using (var response = (HttpWebResponse)ex.Response)
{
return(GetResponse(response, item));
}
}
catch (Exception ex)
{
return(new HttpResult()
{
Html = ex.Message, StatusDescription = ex.Message
});
}
}