public static UploadMediaRequest Get(String toUser, Session session, String filePath)
{
UploadMediaRequest result = new UploadMediaRequest();
result.BaseRequest = session.BaseRequest;
result.FromUserName = session.CurrentUser.UserName;
result.ToUserName = toUser;
result.UploadType = 2;
result.ClientMediaId = Common.GetTimeStamp();
System.IO.FileInfo finfo = new System.IO.FileInfo(filePath);
result.TotalLen = finfo.Length;
result.MediaType = 4;
result.StartPos = 0;
result.DataLen = finfo.Length;
result.FileMd5 = GetMD5HashFromFile(filePath).ToLower();
return(result);
}
/// <summary>
/// 上传媒体文件,如果上传成功，返回获取到的MediaID，否则，返回String.Empty
/// </summary>
private String UploadMedia(String file, String receiver, Int32 fileIndex = 0)
{
String toUser = receiver;
System.Net.ServicePointManager.DefaultConnectionLimit = 100;
//System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
//System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
//System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls11;
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
System.Net.ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAllCertifications);
String _result = String.Empty;
String _url = $"https://file.{m_Session.WXVer}.qq.com/cgi-bin/mmwebwx-bin/webwxuploadmedia?f=json";
HttpWebRequest _request = WebRequest.CreateHttp(_url);
System.IO.FileStream fs = System.IO.File.Open(file, System.IO.FileMode.Open);
byte[] content = new byte[fs.Length];
fs.Read(content, 0, content.Length);
fs.Close();
//_request.KeepAlive = false;
_request.CookieContainer = m_Session.CookieContainer;
_request.Timeout = (Int32)TimeSpan.FromSeconds(20).TotalMilliseconds;
_request.ProtocolVersion = HttpVersion.Version10;
_request.Method = "POST";
_request.UserAgent = m_Session.UserAgent;
_request.Accept = "*/*";
String boundary = "----WebKitFormBoundaryXfoMzS2vayvACSgy";
//_request.ContentType = "application/x-www-form-urlencoded";
_request.ContentType = "multipart/form-data; boundary=" + boundary;
//_request.ContentType = "multipart/form-data;";
//_request.ContentLength = content.Length;
System.IO.FileInfo finfo = new System.IO.FileInfo(file);
Dictionary <string, object> paras = new Dictionary <string, object>();
paras.Add("id", "WU_FILE_" + fileIndex);
paras.Add("name", finfo.Name);
paras.Add("lastModifiedDate", finfo.LastWriteTimeUtc);
paras.Add("size", finfo.Length);
paras.Add("mediatype", "pic");
paras.Add("uploadmediarequest", JsonConvert.SerializeObject(UploadMediaRequest.Get(toUser, m_Session, file)));
paras.Add("webwx_data_ticket", m_Session.GetCookie("webwx_data_ticket"));
paras.Add("pass_ticket", m_Session.pass_ticket);
paras.Add("filename", new FileParameter(content, finfo.Name, "image/jpeg"));
byte[] postData = GetMultipartFormData(paras, boundary);
System.IO.Stream _stream = _request.GetRequestStream();
_stream.Write(postData, 0, postData.Length);
_stream.Close();
HttpWebResponse response = (HttpWebResponse)_request.GetResponse();
m_Session.AddCookies(response.Cookies);
if (response.StatusCode != HttpStatusCode.OK)
{
WriteLog("[上传文件]HTTP加载错误，HTTP请求状态：" + response.StatusCode);
}
System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
String _responseText = sr.ReadToEnd();
sr.Close();
response.Close();
WriteLog("[上传文件]HTTP请求返回结果：" + _responseText);
if (_responseText.Contains("\"MediaId\":"))
{
String mediaID = Regex.Match(_responseText, "(?<=\"MediaId\":).{1,}(?=\",)").Value;
_result = mediaID;
}
return(_result);
}