private void DownloadFile(HttpListenerContext ctx)
{
Byte[] emptyBuffer = new Byte[0];
String fileIdUrl = ctx.Request.RawUrl.Replace(API_NAME, String.Empty).Trim('/');
Int64 fileId = 0L;
Int64.TryParse(fileIdUrl, out fileId);
using (BinaryWriter writer = new BinaryWriter(ctx.Response.OutputStream))
{
if (fileId == 0)
{
writer.Write(emptyBuffer, 0, 0);
}
else
{
using (BigFile bigFile = new BigFile(this.FilePath, this.FileSize))
{
Byte[] buffer = bigFile.Read(fileId) ?? emptyBuffer;
writer.Write(buffer, 0, buffer.Length);
}
}
ctx.Response.StatusCode = (Int32)HttpStatusCode.OK;
ctx.Response.Close();
writer.Close();
}
}
private static void TestRead()
{
var bigFile = new BigFile(BIG_FILE_NAME, 10737418240);
var lines = ReadMsg(BIG_FILE_NAME + ".txt");
if (!Directory.Exists("Images"))
{
Directory.CreateDirectory("Images");
}
var index = 0;
foreach (var line in lines)
{
index++;
if (string.IsNullOrEmpty(line))
{
continue;
}
var arry = line.Split(',');
var fileName = string.Format("{0}-{2}-{1}", arry[0], arry[2], Guid.NewGuid().ToString("N"));
var filePath = Path.Combine("Images", fileName);
var data = bigFile.Read(Convert.ToInt64(arry[0]));
if (data == null || data.Length == 0)
{
Console.WriteLine("{0}/{1} {2} {3} 文件不存在", index, lines.Count, filePath, line);
continue;
}
Console.WriteLine("{0}/{1} {2} {3}", index, lines.Count, filePath, line);
File.WriteAllBytes(filePath, data);
}
}
private void UploadFile(HttpListenerContext ctx)
{
String fileId = String.Empty;
Byte[] buffer = GetFile(ctx);
using (BigFile bigFile = new BigFile(this.FilePath, this.FileSize))
{
fileId = bigFile.Write(buffer).ToString();
}
buffer = null;
String fileUrl = GetApiUrl(ctx.Request.LocalEndPoint.Address.ToString(), ctx.Request.LocalEndPoint.Port) + "/" + fileId;
Trace.Write(fileUrl);
using (StreamWriter writer = new StreamWriter(ctx.Response.OutputStream))
{
writer.Write(fileUrl);
ctx.Response.AppendHeader("File-Id", fileId);
ctx.Response.StatusCode = (Int32)HttpStatusCode.OK;
ctx.Response.ContentType = "text/plain";
writer.Close();
}
}
private static void TestWrite()
{
var bigFile = new BigFile(BIG_FILE_NAME, 10737418240);
for (int i = 0; i < 10000000; i++)
{
var index = i % 10;
var fileName = index.ToString() + ".jpg";
var buffer = File.ReadAllBytes(fileName);
var bufferLength = buffer.Length;
var offset = bigFile.Write(buffer);
var msg = string.Format("{0},{1},{2},{3}\n", offset, bufferLength, fileName, i);
WriteMsg(BIG_FILE_NAME + ".txt", msg);
Console.Write(msg);
}
}
private void StartInfo(HttpListenerContext ctx)
{
const Int32 MB_SIZE = 1048576;
Process process = Process.GetCurrentProcess();
PerformanceCounter pcMemory = new PerformanceCounter("Process", "Working Set - Private", process.ProcessName);
PerformanceCounter pcCpuLoad = new PerformanceCounter("Processor", "% Processor Time", "_Total");
pcCpuLoad.NextValue();
CounterSample cs1 = pcCpuLoad.NextSample();
Thread.Sleep(200);
CounterSample cs2 = pcCpuLoad.NextSample();
Single finalCpuCounter = CounterSample.Calculate(cs1, cs2);
HostConfig section = ConfigurationManager.GetSection(HOST_CONFIG_SECTION) as HostConfig;
using (StreamWriter writer = new StreamWriter(ctx.Response.OutputStream, Encoding.UTF8))
{
writer.WriteLine("Web文件传输服务已经启动!");
writer.WriteLine("启动时间:" + process.StartTime.ToString(TIME_FORMAT));
writer.WriteLine("系统时间:" + DateTime.Now.ToString(TIME_FORMAT));
writer.WriteLine("请求地址:" + ctx.Request.RawUrl);
writer.WriteLine("客户端IP:" + ctx.Request.RemoteEndPoint.Address);
writer.WriteLine("线程数量:" + process.Threads.Count);
writer.WriteLine("程序内存:" + Math.Round(pcMemory.NextValue() / MB_SIZE, 2) + "MB");
writer.WriteLine("系统CPU:" + Math.Round(finalCpuCounter, 0) + "%");
writer.WriteLine("OS版本:" + Environment.OSVersion.VersionString);
if (section != null && section.Hosts != null)
{
writer.WriteLine();
foreach (HostElement setting in section.Hosts)
{
writer.WriteLine("API:" + GetApiUrl(ctx.Request.LocalEndPoint.Address.ToString(), ctx.Request.LocalEndPoint.Port));
writer.WriteLine("文件路径:" + setting.GetFilePath() + " 文件大小:" + setting.Size + " Http端口:" + setting.Port);
BigFile.Header header = null;
using (BigFile file = new BigFile(setting.GetFilePath(), setting.FileSize))
{
header = file.GetHeader();
}
writer.WriteLine("剩余容量:" + Math.Round((Decimal)header.FreeStorage / MB_SIZE, 2) + "MB");
writer.WriteLine("文件个数:" + header.FileCount);
writer.WriteLine("覆盖前文件个数:" + header.CycleTotalFileCount + " 覆盖次数:" + header.OverwriteCount + " 覆盖时间:" + header.OverwriteTime.ToString(TIME_FORMAT));
writer.WriteLine("上一文件刻度:" + header.PrevOffset + " 上一文件存储时间:" + header.ActiveTime.ToString(TIME_FORMAT));
if (header.FinalOffset > 0)
{
writer.WriteLine("末尾文件刻度:" + header.FinalOffset + " 末尾文件存储时间:" + header.FinalFileTime.ToString(TIME_FORMAT));
}
writer.WriteLine("当前文件刻度:" + header.CurrentOffset);
writer.WriteLine();
}
}
ctx.Response.StatusCode = (Int32)HttpStatusCode.OK;
ctx.Response.ContentType = "text/plain";
ctx.Response.ContentEncoding = Encoding.UTF8;
writer.Close();
}
}
