public static MemoryStream GetFile(string url)
{
try
{
Console.WriteLine();
Console.WriteLine(url);
Console.WriteLine();
Console.WriteLine(" 开始请求文件 " + DateTime.Now);
var data = new Http_Client().get(url);
Console.WriteLine();
Console.WriteLine(" 文件请求结束 " + DateTime.Now);
Console.WriteLine();
return(data);
}
catch (Exception ex)
{
Console.WriteLine("url:{0} , error:{1}", url, ex.Message);
L.File.Error(url, ex);
return(null);
}
}
private MemoryStream init(string url, string datainfo = null, string method = "get", string charset = "UTF-8", string referer = null)
{
MemoryStream stream = null;
#region
var coding = Encoding.GetEncoding(charset);
byte[] dataByte = null;
if (datainfo != null)
{
dataByte = coding.GetBytes(datainfo);
}
Uri uri = new Uri(url);
_socket.Connect(uri.Host, uri.Port);
MemoryStream ms = new MemoryStream();
if (referer == null)
{
referer = url;
}
StringBuilder sb = new StringBuilder();
sb.Append(string.Format("{0} {1} HTTP/1.1\r\n", method.ToUpper(), uri.PathAndQuery));
sb.Append(string.Format("Host: {0}\r\n", uri.Authority));
sb.Append("Accept: */*\r\n");
sb.Append("Content-Type:application/x-www-form-urlencoded\r\n");
//sb.Append("Connection: keep - alive\r\n");
//sb.Append("User - Agent: Mozilla / 5.0(Windows NT 10.0; WOW64) AppleWebKit / 537.36(KHTML, like Gecko) Chrome / 63.0.3239.132 Safari / 537.36\r\n");
//sb.Append(string.Format("Accept: image / webp,image / apng,image/*,*/*; q = 0.8\r\n"));
//sb.Append(string.Format("Referer: {0}\r\n", referer));
//sb.Append(string.Format("Accept - Encoding: gzip, deflate, br\r\n"));
//if (datainfo != null)
// sb.Append(string.Format("Content-Length:{0}\r\n", dataByte.Length));
//sb.Append(string.Format("Accept - Language: zh - CN,zh; q = 0.9,en; q = 0.8\r\n"));
sb.Append(string.Format("\r\n"));
var sendinfo = sb.ToString();
_socket.ReceiveTimeout = 1000 * timeout;
_socket.SendTimeout = 1000 * timeout;
isHttps = string.Compare(uri.Scheme, "https", false) == 0;
if (isHttps)
{
ssl = new SslStream(new NetworkStream(_socket), false, delegate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) {
return(sslPolicyErrors == SslPolicyErrors.None);
}, null);
ssl.ReadTimeout = 1000 * timeout;
ssl.WriteTimeout = 1000 * timeout;
ssl.AuthenticateAsClient(uri.Host);
ssl.Write(coding.GetBytes(sendinfo));
if (datainfo != null)
{
ssl.Write(dataByte);
}
//ssl.Flush();
}
else
{
var result_int = _socket.Send(coding.GetBytes(sendinfo));
if (datainfo != null)
{
result_int = _socket.Send(dataByte);
}
}
#endregion
byte[] filedata = getHeader();
int status_code = int.Parse(HttpHeaders.ResponseStatusCode);
if (status_code != 200)
{
L.File.InfoFormat("状态码：【{0}】 , [ url ]：{1}", status_code, url);
}
switch (status_code)
{
case 403: return(stream);
default: break;
}
Console.WriteLine(" {0}", status_code);
if (status_code >= 500)
{
Console.WriteLine(" 服务器返回状态码：{0} --- 服务器报错！！！", status_code);
return(stream);
}
if (HttpHeaders.IsChunk)
{
byte[] data = new byte[102400];
int bodyStart = 0;//数据部分起始位置
int readLength = filedata.Length;
stream = new MemoryStream();
Array.Copy(filedata, 0, data, 0, filedata.Length);
GetChunkData(ref data, ref bodyStart, ref readLength, ref stream);
}
else
{
stream = defaultReceive(filedata);
}
if (!string.IsNullOrWhiteSpace(this.HttpHeaders.Location))
{
stream = new Http_Client().get(this.HttpHeaders.Location, referer = uri.AbsoluteUri);
}
if (HttpHeaders.IsGzip)
{
stream = unGzip(stream);
}
stream.Flush();
return(stream);
}