protected void InitResult()
{
var(Stream, Pusher) = ResultStream <TOut> .GetResultStream(this);
_streamer = Pusher;
_result = Stream as ResultStream <TOut>;
}
/// <summary>
/// 重新构造相同的 HTTP 请求，用于重复当前请求。
/// </summary>
public HttpRequest RebuildRequest()
{
if (State == HttpRequestState.Connecting || State == HttpRequestState.Progressing)
{
throw new InvalidOperationException("不能对传输中的请求进行修改。");
}
var oldRequest = Request;
Request = WebRequest.CreateHttp(oldRequest.RequestUri);
Request?.Abort();
ResultStream?.Dispose();
Request.Accept = oldRequest.Accept;
Request.AllowReadStreamBuffering = oldRequest.AllowReadStreamBuffering;
Request.ContentType = oldRequest.ContentType;
Request.ContinueTimeout = oldRequest.ContinueTimeout;
Request.CookieContainer = oldRequest.CookieContainer;
Request.Credentials = oldRequest.Credentials;
Request.Headers = oldRequest.Headers;
Request.Method = oldRequest.Method;
Request.Proxy = oldRequest.Proxy;
Request.UseDefaultCredentials = oldRequest.UseDefaultCredentials;
State = HttpRequestState.NothingSpecial;
return(this);
}
void NetworkReadCallback(IAsyncResult ar)
{
var count = 0;
try
{
count = AsyncData.Stream.EndRead(ar);
if (count > 0)
{
ResultStream.Write(_buffer, 0, count);
}
}
catch (Exception exception)
{
AsyncData.Exception = exception;
CompleteCallback();
return;
}
if (count == 0)
{
ProcessFinalResponse();
ResultStream.Seek(0, SeekOrigin.Begin);
CompleteCallback();
}
else
{
AsyncData.Stream.BeginRead(_buffer, 0, _buffer.Length, NetworkReadCallback, this);
}
}
public Stream AsStream()
{
if (ResultStream.CanSeek)
{
ResultStream.Seek(0, SeekOrigin.Begin);
}
return(ResultStream);
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
lock (_lock)
{
_isDisposed = true;
_waitHandle.Close();
ResultStream?.Dispose();
}
}
public static IResultStream EvaluateTargetsToResults(IDictionary <IBookIndex, IBookTarget> targets, IProcessConfig config, IEngineProfile engine)
{
IResultStream emptyResults = ResultStream.CreateEmptyStream();
var results = targets.Aggregate(emptyResults,
(agr, target) => EvaluateTarget(agr, target.Value, config, engine));
return(results);
}
public string AsString()
{
if (ResultStream.CanSeek)
{
ResultStream.Seek(0, SeekOrigin.Begin);
}
var retv = Fi.StandardEncoding.GetString(AsBuffer());
return(retv);
}
public MemoryStream AsSeekableStream()
{
if (ResultStream.CanSeek)
{
ResultStream.Seek(0, SeekOrigin.Begin);
}
using (ResultStream) {
var ms = new MemoryStream();
ResultStream.CopyTo(ms);
ResultStream.Flush();
return(ms);
}
}
public void SubmitToStream(BuiltinReportDescriptor descriptor)
{
/* load the master template */
var raw = LoadTemplate("builtinreport.ent", descriptor.m);
/* do we need the JS libraries of amline? */
if (NeedsAMJSLines)
{
var flashscript = LoadTemplate("am_embed_js.html", descriptor.m);
raw.Set("flashscript", flashscript.ToString());
}
else
{
raw.Set("flashscript", String.Empty); /* added [dlatikay 20120202] */
}
/* perform the replacements */
raw.Set("title", descriptor.ReportPageTitle);
raw.Set("dqp", descriptor.DQP); /* added [dlatikay 20120209] */
raw.Set("onloadaction", descriptor.Outputformat == FileType.ft_html ? "window.print();" : String.Empty); /* added [dlatikay 20120209] */
raw.Set("header", header == null ? String.Empty : header.ToString());
raw.Set("meta", meta == null ? String.Empty : meta.ToString());
var compositecontent = new StringBuilder();
var partcounter = 0;
foreach (var part in parts)
{
compositecontent.AppendFormat("{1}{0}{2}", part.ToString(), (((++partcounter) <= 1) ? String.Empty : "<!-- section ruler -->"), Environment.NewLine);
}
raw.Set("rendition", compositecontent.ToString());
raw.Set("footer", String.Format("<span id=\"builtinreport_footer\">{0}</span>", HttpUtility.HtmlEncode(String.Format(descriptor.m(3252), descriptor.Systemname, descriptor.Systemversion, descriptor.ReportCreationTimestamp)))); /* Created using en-software SHERM v2.1 */
raw.Set("onafterprint", descriptor.Outputformat == dal.business.FileType.ft_pdf ? "JavaScript:window.location.href='about:blank';" : String.Empty); /* when we are rendering a pdf, we will print it to the postscript printer. therefore we need this to allow the silent host browser to detect when printing has finished */
/* [dlatikay 20111202] if we want html, we get html;
* stream it out: */
if (descriptor.Outputformat == dal.business.FileType.ft_html)
{
byte[] html = System.Text.UTF8Encoding.UTF8.GetBytes(raw.ToString());
ResultStream.Write(html, 0, html.Length);
}
/* reset if can */
if (ResultStream.CanSeek)
{
ResultStream.Seek(0, SeekOrigin.Begin);
}
}
/// <summary>
/// 将 HTTP 请求结果以指定的代码页转换为字符串，并在结束后释放该次网络请求的资源，在该操作后内部的<see cref="ResultStream" />与<see cref="Response" />不再有效，但不会释放
/// <see cref="SetResultStream" />所设置的流。
/// </summary>
public String GetDataAsString(Encoding encoding)
{
if (State == HttpRequestState.Completed)
{
if (!ResultStream.CanRead)
{
throw new ArgumentException("结果流不可读。", nameof(ResultStream));
}
if (ResultStream != null && ResultStream.Length > 0)
{
byte[] data = new byte[ResultStream.Length];
ResultStream?.Read(data, 0, data.Length);
Dispose();
return(encoding.GetString(data));
}
return(null);
}
throw new InvalidOperationException("请在请求完成后调用 HttpRequest.GetDataAsString 方法。");
}
//public Stream AsRawStream() {
// var rawStream = new MemoryStream();
// using (var writer = new StreamWriter(rawStream, new UTF8Encoding(), 8192, true)) {
// writer.WriteLine($"HTTP/1.1 {StatusCode} {StatusDescription}");
// lock (this.Headers) {
// this.Headers.ForEach(header => {
// writer.WriteLine();
// });
// }
// writer.WriteLine();
// }
// ResultStream.CopyTo(rawStream);
// rawStream.Seek(0, SeekOrigin.Begin);
// return rawStream;
//}
public byte[] AsBuffer()
{
if (ResultStream.CanSeek)
{
ResultStream.Seek(0, SeekOrigin.Begin);
}
byte[] bytes;
if (ResultStream is MemoryStream rsms)
{
bytes = rsms.ToArray();
}
else
{
using (var ms = new MemoryStream()) {
ResultStream.CopyTo(ms);
ms.Seek(0, SeekOrigin.Begin);
bytes = ms.ToArray();
}
}
return(bytes);
}
public async Task SaveToFile(IFileSystem fs, string fileName)
{
ResultStream.Seek(0, SeekOrigin.Begin);
await fs.Write(fileName, async stream => await ResultStream.CopyToAsync(stream));
}
public byte[] AsDecodedBuffer(IEncryptionMethod method)
{
ResultStream.Seek(0, SeekOrigin.Begin);
return(method.Decrypt(AsBuffer()));
}
private async Task AssertResultsAsync(ResultStream stream, IEnumerable <PartialResultSet> expectedResults)
{
var ret = new List <PartialResultSet>();
while (await stream.MoveNext(default))
private void OnResultStream(EventArgsT <object> e)
{
ResultStream?.Invoke(this, e);
}
private void Start(int retryCount, Stream content = null)
{
_progressing = true;
_progressWaitHandle.Reset();
int retry = 0;
Task.Run(async() =>
{
HttpRequestQueue.Current.Register(this);
_queueWaitHandle.WaitOne();
RETRY: //重试标签
if (State == HttpRequestState.NothingSpecial)
{
EventArgs <HttpRequestStats> progressInfo = null;
if (TransferProgressChanged != null)
{
progressInfo = new EventArgs <HttpRequestStats>(new HttpRequestStats());
}
try
{
State = HttpRequestState.Connecting;
if (TransferProgressChanged != null)
{
progressInfo.Value.Update();
TransferProgressChanged(this, progressInfo);
}
//数据上传过程，用于 Put 与 Post
if (content != null && (Request.Method == "PUT" || Request.Method == "POST"))
{
using (var requestStream = await Request.GetRequestStreamAsync())
{
State = HttpRequestState.Progressing;
if (TransferProgressChanged != null)
{
progressInfo.Value.ProgressType = HttpRequestProgressType.Upload;
progressInfo.Value.Update();
progressInfo.Value.TotalBytes = content.Length;
TransferProgressChanged(this, progressInfo);
byte[] buffer = new byte[TransferBufferSize];
int writeLength;
while ((writeLength = content.Read(buffer, 0, buffer.Length)) != 0)
{
requestStream.Write(buffer, 0, writeLength);
progressInfo.Value.Update(writeLength);
TransferProgressChanged(this, progressInfo);
}
progressInfo = new EventArgs <HttpRequestStats>(new HttpRequestStats());
}
else
{
content.CopyTo(requestStream);
}
}
}
//数据下载过程，用于 Post 与 Get
if (Request.Method == "GET" || Request.Method == "POST")
{
Response = (HttpWebResponse)await Request.GetResponseAsync();
State = HttpRequestState.Progressing;
#region 载过程
using (var stream = Response.GetResponseStream())
{
State = HttpRequestState.Progressing;
if (_customStream == null)
{
ResultStream =
new MemoryStream((int)(Response.ContentLength > 0
? Response.ContentLength
: 10 * TransferBufferSize));
}
if (TransferProgressChanged != null)
{
progressInfo.Value.ProgressType = HttpRequestProgressType.Download;
progressInfo.Value.TotalBytes = Response.ContentLength > 0
? Response.ContentLength
: 0;
byte[] buffer = new byte[TransferBufferSize];
long pos = 0;
int readLength;
if (ResultStream.CanSeek)
{
pos = ResultStream.Position;
}
while ((readLength = stream.Read(buffer, 0, buffer.Length)) != 0)
{
ResultStream.Write(buffer, 0, readLength);
progressInfo.Value.Update(readLength);
TransferProgressChanged(this, progressInfo);
}
if (ResultStream.CanSeek)
{
ResultStream.Position = pos;
}
}
else
{
long pos = 0;
if (ResultStream.CanSeek)
{
pos = ResultStream.Position;
}
stream.CopyTo(ResultStream);
if (ResultStream.CanSeek)
{
ResultStream.Position = pos;
}
}
}
#endregion 载过程
}
State = HttpRequestState.Completed;
if (TransferProgressChanged != null)
{
progressInfo.Value.Update();
TransferProgressChanged(this, progressInfo);
}
_progressWaitHandle.Set();
_progressing = false;
return;
}
catch (WebException webException)
{
Exception = webException;
State = HttpRequestState.ErrorOccurred;
if (TransferProgressChanged != null)
{
progressInfo.Value.Update();
TransferProgressChanged(this, progressInfo);
}
}
catch (Exception ex)
{
Exception = ex;
_progressWaitHandle.Set();
_progressing = false;
throw;
}
}
if (retry < retryCount)
{
retry++;
RebuildRequest(); //重构请求
goto RETRY; //重试请求
}
//取消等待
_progressWaitHandle.Set();
_progressing = false;
});
}
public void Dispose()
{
Response?.Dispose();
ResultStream?.Dispose();
}
public override void Output(HttpListenerResponse output)
{
output.StatusCode = StatusCode;
output.ContentType = ContentType;
ResultStream.CopyTo(output.OutputStream);
}
/// <summary>
/// 请求处理最后的内容
/// </summary>
protected virtual void ProcessFinalResponse()
{
ResultStream.Seek(0, SeekOrigin.Begin);
}
