Example #1
0
 private void OnDataReceive(DownLoadEventArgs e)
 {
     //触发数据到达事件
     DataReceive(this, e);
 }
Example #2
0
		private void OnDataReceive(DownLoadEventArgs e)
		{
			//触发数据到达事件
			DataReceive(this, e);
		}
Example #3
0
        internal byte[] ResponseAsBytes(string RequestURL, WebResponse Response, long Length, string FileName)
        {
            string a   = null;     //AttachmentName
            int    P   = 0;        //整个文件的位置指针
            long   num = 0;

            try
            {
                a = Response.Headers["Content-Disposition"];                 //attachment
                if (a != null)
                {
                    a = a.Substring(a.LastIndexOf("filename=") + 9);
                }

                num = Length;                 //Response.ContentLength;
                bool flag = false;
                if (num == -1)
                {
                    flag = true;
                    num  = 0x0000;                    //6k
                }
                byte[] buffer = new byte[(int)num];


                int p = 0;                 //本块的位置指针

                string s = Response.Headers["Content-Range"];
                if (s != null)
                {
                    s = s.Replace("bytes ", "");
                    s = s.Substring(0, s.IndexOf("-"));
                    P = Convert.Toint(s);
                }
                num = 0;

                Stream S = Response.GetResponseStream();
                do
                {
                    num = S.Read(buffer, num, ((int)num) - num);

                    num += num;
                    if (flag && (num == num))
                    {
                        num += 0x0000;
                        byte[] buffer = new byte[(int)num];
                        Buffer.BlockCopy(buffer, 0, buffer, 0, num);
                        buffer = buffer;
                    }

                    // lock (_SyncLockObject)
                    // {
                    // this._bytes += num;
                    // }
                    if (num > 0)
                    {
                        if (this.DataReceive != null)
                        {
                            byte[] buffer = new byte[num];
                            Buffer.BlockCopy(buffer, p, buffer, 0, buffer.Length);
                            DownLoadState     dls  = new DownLoadState(RequestURL, Response.ResponseUri.AbsolutePath, FileName, a, P, num, buffer);
                            DownLoadEventArgs dlea = new DownLoadEventArgs(dls);
                            //触发事件
                            this.OnDataReceive(dlea);
                            //System.Threading.Thread.Sleep(00);
                        }
                        p += num;                         //本块的位置指针
                        P += num;                         //整个文件的位置指针
                    }
                    else
                    {
                        break;
                    }
                }while (num != 0);

                S.Close();
                S = null;
                if (flag)
                {
                    byte[] buffer = new byte[num];
                    Buffer.BlockCopy(buffer, 0, buffer, 0, num);
                    buffer = buffer;
                }
                return(buffer);
            }
            catch (Exception e)
            {
                ExceptionActions ea = ExceptionActions.Throw;
                if (this.ExceptionOccurrs != null)
                {
                    DownLoadState      x   = new DownLoadState(RequestURL, Response.ResponseUri.AbsolutePath, FileName, a, P, num);
                    ExceptionEventArgs eea = new ExceptionEventArgs(e, x);
                    ExceptionOccurrs(this, eea);
                    ea = eea.ExceptionAction;
                }

                if (ea == ExceptionActions.Throw)
                {
                    if (!(e is WebException) && !(e is SecurityException))
                    {
                        throw new WebException("net_webclient", e);
                    }
                    throw;
                }
                return(null);
            }
        }
Example #4
0
		internal byte[] ResponseAsBytes(string RequestURL, WebResponse Response, long Length, string FileName)
		{
			string a = null; //AttachmentName
			int P = 0; //整个文件的位置指针
			long num = 0;
			try
			{
				a = Response.Headers["Content-Disposition"]; //attachment
				if (a != null)
				{
					a = a.Substring(a.LastIndexOf("filename=") + 9);
				}

				num = Length; //Response.ContentLength;
				bool flag = false;
				if (num == -1)
				{
					flag = true;
					num = 0x0000; //6k
				}
				byte[] buffer = new byte[(int)num];


				int p = 0; //本块的位置指针

				string s = Response.Headers["Content-Range"];
				if (s != null)
				{
					s = s.Replace("bytes ", "");
					s = s.Substring(0, s.IndexOf("-"));
					P = Convert.Toint(s);
				}
				num = 0;

				Stream S = Response.GetResponseStream();
				do
				{
					num = S.Read(buffer, num, ((int)num) - num);

					num += num;
					if (flag && (num == num))
					{
						num += 0x0000;
						byte[] buffer = new byte[(int)num];
						Buffer.BlockCopy(buffer, 0, buffer, 0, num);
						buffer = buffer;
					}

					// lock (_SyncLockObject)
					// {
					// this._bytes += num;
					// }
					if (num > 0)
					{
						if (this.DataReceive != null)
						{
							byte[] buffer = new byte[num];
							Buffer.BlockCopy(buffer, p, buffer, 0, buffer.Length);
							DownLoadState dls = new DownLoadState(RequestURL, Response.ResponseUri.AbsolutePath, FileName, a, P, num, buffer);
							DownLoadEventArgs dlea = new DownLoadEventArgs(dls);
							//触发事件
							this.OnDataReceive(dlea);
							//System.Threading.Thread.Sleep(00);

						}
						p += num; //本块的位置指针
						P += num; //整个文件的位置指针
					}
					else
					{
						break;
					}

				}
				while (num != 0);

				S.Close();
				S = null;
				if (flag)
				{
					byte[] buffer = new byte[num];
					Buffer.BlockCopy(buffer, 0, buffer, 0, num);
					buffer = buffer;
				}
				return buffer;
			}
			catch (Exception e)
			{
				ExceptionActions ea = ExceptionActions.Throw;
				if (this.ExceptionOccurrs != null)
				{
					DownLoadState x = new DownLoadState(RequestURL, Response.ResponseUri.AbsolutePath, FileName, a, P, num);
					ExceptionEventArgs eea = new ExceptionEventArgs(e, x);
					ExceptionOccurrs(this, eea);
					ea = eea.ExceptionAction;
				}

				if (ea == ExceptionActions.Throw)
				{
					if (!(e is WebException) && !(e is SecurityException))
					{
						throw new WebException("net_webclient", e);
					}
					throw;
				}
				return null;
			}
		}