void AddHeaderVariables(HttpWorkerRequest wr)
{
string hname;
string hvalue;
// Add all known headers
for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++)
{
hvalue = wr.GetKnownRequestHeader(i);
if (null != hvalue && hvalue.Length > 0)
{
hname = HttpWorkerRequest.GetKnownRequestHeaderName(i);
if (null != hname && hname.Length > 0)
{
Add("HTTP_" + hname.ToUpper(Helpers.InvariantCulture).Replace('-', '_'), hvalue);
}
}
}
// Get all other headers
string [][] unknown = wr.GetUnknownRequestHeaders();
if (null != unknown)
{
for (int i = 0; i < unknown.Length; i++)
{
hname = unknown [i][0];
if (hname == null)
{
continue;
}
hvalue = unknown [i][1];
Add("HTTP_" + hname.ToUpper(Helpers.InvariantCulture).Replace('-', '_'), hvalue);
}
}
}
string Fill(HttpWorkerRequest wr, bool standard)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++)
{
string val = wr.GetKnownRequestHeader(i);
if (val == null || val == "")
{
continue;
}
string key = HttpWorkerRequest.GetKnownRequestHeaderName(i);
AppendKeyValue(sb, key, val, standard);
}
string [][] other = wr.GetUnknownRequestHeaders();
if (other == null)
{
return(sb.ToString());
}
for (int i = other.Length; i > 0;)
{
i--;
AppendKeyValue(sb, other [i][0], other [i][1], standard);
}
return(sb.ToString());
}
protected override void InsertInfo()
{
HttpWorkerRequest worker_request = _request.WorkerRequest;
if (null != worker_request)
{
for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++)
{
string hval = worker_request.GetKnownRequestHeader(i);
if (hval == null || hval == "")
{
continue;
}
Add(HttpWorkerRequest.GetKnownRequestHeaderName(i), hval);
}
string [] [] unknown = worker_request.GetUnknownRequestHeaders();
if (unknown != null && unknown.GetUpperBound(0) != -1)
{
int top = unknown.GetUpperBound(0) + 1;
for (int i = 0; i < top; i++)
{
// should check if unknown [i] is not null, but MS does not.
Add(unknown [i] [0], unknown [i] [1]);
}
}
Protect();
}
}
public RequestStream(HttpWorkerRequest request)
{
this.request = request;
tempBuff = request.GetPreloadedEntityBody();
_contentLength = long.Parse(request.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentLength));
// Handle the case where GetPreloadedEntityBody is null -- e.g. Mono
if (tempBuff == null || tempBuff.Length == 0)
{
isInPreloaded = false;
}
}
public AsyncUpload(HttpWorkerRequest wRquest)
{
if (wRquest == null) throw new ArgumentNullException("wRquest");
this.uploadProcess = new UploadProcess(delegate(float f) { });
workerRequest = wRquest;
//当前读到的流长度
this.preLen = workerRequest.GetPreloadedEntityBodyLength();
//请求流的总长度
this.totLen = workerRequest.GetTotalEntityBodyLength();
//内容分隔符 如: -----------------------------152733254716788
if (preLen == 0 && workerRequest.IsClientConnected() && workerRequest.HasEntityBody())
{
byte[] buffer = new byte[8192];
preLen = workerRequest.ReadEntityBody(buffer, buffer.Length);
byte[] buf = new byte[preLen];
for (int i = 0; i < buf.Length; i++) buf[i] = buffer[i];
this.perBodyBytes = buf;
}
else
this.perBodyBytes = workerRequest.GetPreloadedEntityBody();
this.headerBytes = this.GetBoundaryBytes(Encoding.UTF8.GetBytes(workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType)));
//请求流尾部分隔符 如: -----------------------------152733254716788--
this.contentEnd = new byte[this.headerBytes.Length + 2];
this.headerBytes.CopyTo(this.contentEnd, 0);
this.contentEnd[this.headerBytes.Length] = 45;
this.contentEnd[this.headerBytes.Length + 1] = 45;
//当前流中第一个文件分隔符的位置
int fHeaderPosition = perBodyBytes.Indexof(fileNameHeader);
//尝试在已读取到的流中找文件尾位置
this.fEndPosition = perBodyBytes.Indexof(contentEnd);
if (fHeaderPosition > -1)
{
//先找到文件名
IList<byte> bufList = new List<byte>();
int i = fHeaderPosition + fileNameHeader.Length;
while (i < perBodyBytes.Length)
{
if (perBodyBytes[i] == 34) break;
bufList.Add(perBodyBytes[i]);
i++;
}
this.FileName = Encoding.UTF8.GetString(bufList.ToArray());//file name
this.fPosition = perBodyBytes.Indexof(wrapBytes, i) + 4;//当前流中此文件的开始位置
this.FileLength = this.totLen - this.fPosition;
}
}
static void Redirect (HttpWorkerRequest wr, string location)
{
string host = wr.GetKnownRequestHeader (HttpWorkerRequest.HeaderHost);
wr.SendStatus (301, "Moved Permanently");
wr.SendUnknownResponseHeader ("Connection", "close");
wr.SendUnknownResponseHeader ("Date", DateTime.Now.ToUniversalTime ().ToString ("r"));
wr.SendUnknownResponseHeader ("Location", String.Format ("{0}://{1}{2}", wr.GetProtocol(), host, location));
Encoding enc = Encoding.ASCII;
wr.SendUnknownResponseHeader ("Content-Type", "text/html; charset=" + enc.WebName);
string content = String.Format (CONTENT301, host, location);
byte [] contentBytes = enc.GetBytes (content);
wr.SendUnknownResponseHeader ("Content-Length", contentBytes.Length.ToString ());
wr.SendResponseFromMemory (contentBytes, contentBytes.Length);
wr.FlushResponse (true);
wr.CloseConnection ();
}
// Determines whether or not a given HttpWorkerRequest meets the requirements for "same-origin"
// as called out in these two documents:
// - http://tools.ietf.org/html/rfc6454 (Web Origin)
// - http://tools.ietf.org/html/rfc6455 (WebSockets)
public static bool IsSameOriginRequest(HttpWorkerRequest workerRequest) {
string hostHeader = workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderHost);
if (String.IsNullOrEmpty(hostHeader)) {
// RFC 6455 (Sec. 4.1) and RFC 2616 (Sec. 14.23) make the "Host" header mandatory
return false;
}
string secWebSocketOriginHeader = workerRequest.GetUnknownRequestHeader("Origin");
if (String.IsNullOrEmpty(secWebSocketOriginHeader)) {
// RFC 6455 (Sec. 4.1) makes the "Origin" header mandatory for browser clients.
// Phone apps, console clients, and similar non-browser clients aren't required to send the header,
// but this method isn't intended for those use cases anyway, so we can fail them. (Note: it's still
// possible for a non-browser app to send the appropriate Origin header.)
return false;
}
// create URI instances from both the "Host" and the "Origin" headers
Uri hostHeaderUri = null;
Uri originHeaderUri = null;
bool urisCreatedSuccessfully = Uri.TryCreate(workerRequest.GetProtocol() + "://" + hostHeader.Trim(), UriKind.Absolute, out hostHeaderUri) // RFC 2616 (Sec. 14.23): "Host" header doesn't contain the scheme, so we need to prepend
&& Uri.TryCreate(secWebSocketOriginHeader.Trim(), UriKind.Absolute, out originHeaderUri);
if (!urisCreatedSuccessfully) {
// construction of one of the Uri instances failed
return false;
}
// RFC 6454 (Sec. 4), schemes must be normalized to lowercase. (And for WebSockets we only
// support HTTP / HTTPS anyway.)
if (originHeaderUri.Scheme != "http" && originHeaderUri.Scheme != "https") {
return false;
}
// RFC 6454 (Sec. 5), comparisons should be ordinal. The Uri class will automatically
// fill in the Port property using the default value for the scheme if the provided input doesn't
// explicitly contain a port number.
return hostHeaderUri.Scheme == originHeaderUri.Scheme
&& hostHeaderUri.Host == originHeaderUri.Host
&& hostHeaderUri.Port == originHeaderUri.Port;
}
string Fill (HttpWorkerRequest wr, bool standard)
{
StringBuilder sb = new StringBuilder ();
for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++){
string val = wr.GetKnownRequestHeader (i);
if (val == null || val == "")
continue;
string key = HttpWorkerRequest.GetKnownRequestHeaderName (i);
AppendKeyValue (sb, key, val, standard);
}
string [][] other = wr.GetUnknownRequestHeaders ();
if (other == null)
return sb.ToString ();
for (int i = other.Length; i > 0; ){
i--;
AppendKeyValue (sb, other [i][0], other [i][1], standard);
}
return sb.ToString ();
}
private void SetByteMarkers(HttpWorkerRequest workerRequest, Encoding encoding)
{
var contentType = workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
var bufferIndex = contentType.IndexOf("boundary=") + "boundary=".Length;
var boundary = String.Concat("--", contentType.Substring(bufferIndex));
_boundaryBytes = encoding.GetBytes(string.Concat(boundary, _lineBreak));
//head 结尾标志 (假定！hack，不同的表单或许会不一样的)
_endFileHeaderBytes = encoding.GetBytes(string.Concat("application/octet-stream"+_lineBreak, _lineBreak));
_endHeaderBytes = encoding.GetBytes(string.Concat(_lineBreak, _lineBreak));
//文件结尾标志
// _endFileBytes = encoding.GetBytes(string.Concat(_lineBreak, boundary, "--", _lineBreak));
_endFileBytes = encoding.GetBytes(string.Concat(_lineBreak, boundary, "--"));
_lineBreakBytes = encoding.GetBytes(string.Concat(_lineBreak + boundary + _lineBreak));
}
private void context_BeginRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
HttpContext context = app.Context;
// We need the HttpWorkerRequest of the current context to
// process the request data. For more details about HttpWorkerRequest,
// please follow the Readme file in the root directory.
IServiceProvider provider = (IServiceProvider)context;
System.Web.HttpWorkerRequest request =
(HttpWorkerRequest)provider.GetService(typeof(HttpWorkerRequest));
// Get the content type of the current request.
string contentType =
request.GetKnownRequestHeader(
System.Web.HttpWorkerRequest.HeaderContentType);
// If we could not get the content type, then skip out the module
if (contentType == null)
{
return;
}
// If the content type is not multipart/form-data,
// means that there is no file upload request
// then skip out the moudle
if (contentType.IndexOf("multipart/form-data") == -1)
{
return;
}
string boundary = contentType.Substring(contentType.IndexOf("boundary=") + 9);
// Get the content length of the current request
long contentLength = Convert.ToInt64(
request.GetKnownRequestHeader(
HttpWorkerRequest.HeaderContentLength));
// Get the data of the portion of the HTTP request body
// that has currently been read.
// This is the first step for us to store the upload file.
byte[] data = request.GetPreloadedEntityBody();
// Create an instance of the manager class which
// help to filter the request data.
FileUploadDataManager storeManager =
new FileUploadDataManager(boundary);
// Append the preloaded data.
storeManager.AppendData(data);
UploadStatus status = null;
if (context.Cache[_cacheContainer] == null)
{
//Initialize the UploadStatus which used to
//store the status for the client.
status = new UploadStatus(
context, // Send the current context to the status
// which will be used for the events.
contentLength // Initialize the file length.
);
// Bind a event when update the status.
status.OnDataChanged +=
new UploadStatusEventHandler(status_OnDataChanged);
}
else
{
status = context.Cache[_cacheContainer] as UploadStatus;
if (status.IsFinished)
{
return;
}
}
// Set the first read data length to the status class.
if (data != null)
{
status.UpdateLoadedLength(data.Length);
}
// Get the length of the left request data.
long leftdata = status.ContentLength - status.LoadedLength;
// Define a custom buffer length
int customBufferLength = Convert.ToInt32(Math.Ceiling((double)contentLength / 16));
if (customBufferLength < 1024)
{
customBufferLength = 1024;
}
while (!request.IsEntireEntityBodyIsPreloaded() && leftdata > 0)
{
// Check if user abort the upload, then close the connection
if (status.Aborted)
{
// Delete the cached files.
foreach (UploadFile file in storeManager.FilterResult)
{
file.ClearCache();
}
request.CloseConnection();
return;
}
// If the length the remained request data
// is less than the buffer length,
// then set the buffer length as the remained data length.
if (leftdata < customBufferLength)
{
customBufferLength = (int)leftdata;
}
// Read a custom buffer length of the request data
data = new byte[customBufferLength];
int redlen = request.ReadEntityBody(data, customBufferLength);
if (customBufferLength > redlen)
{
data = BinaryHelper.SubData(data, 0, redlen);
}
// Append the left data.
storeManager.AppendData(data);
// Add the buffer length to the status to update the upload status
status.UpdateLoadedLength(redlen);
leftdata -= redlen;
}
// After all the data has been read,
// save the uploaded files.
foreach (UploadFile file in storeManager.FilterResult)
{
file.Save(null);
}
}
void Application_ResolveRequestCache(object sender, EventArgs e)
{
wr = GetCurrentWorkerRequest();
string contentTypeHeader = wr.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
if (contentTypeHeader != null && contentTypeHeader.ToLower().StartsWith("multipart/form-data"))
{
WaitForUploadToComplete();
}
}
internal static bool IsUpload(HttpWorkerRequest request)
{
string contentType = request.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
return IsPost(request) && IsMultiPartFormData(contentType) && HasBoundary(contentType);
}
void AddHeaderVariables (HttpWorkerRequest wr)
{
string hname;
string hvalue;
// Add all known headers
for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++) {
hvalue = wr.GetKnownRequestHeader (i);
if (null != hvalue && hvalue.Length > 0) {
hname = HttpWorkerRequest.GetKnownRequestHeaderName (i);
if (null != hname && hname.Length > 0)
Add ("HTTP_" + hname.ToUpper (Helpers.InvariantCulture).Replace ('-', '_'), hvalue);
}
}
// Get all other headers
string [][] unknown = wr.GetUnknownRequestHeaders ();
if (null != unknown) {
for (int i = 0; i < unknown.Length; i++) {
hname = unknown [i][0];
if (hname == null)
continue;
hvalue = unknown [i][1];
Add ("HTTP_" + hname.ToUpper (Helpers.InvariantCulture).Replace ('-', '_'), hvalue);
}
}
}
public static void Log(HttpWorkerRequest worker, string uploadId)
{
#if DEBUG
Log(" - Content-Length:" + worker.GetKnownRequestHeader(System.Web.HttpWorkerRequest.HeaderContentLength), uploadId);
#endif
}
public static Encoding GetEncodingFromHeaders(HttpWorkerRequest workerRequest)
{
if (workerRequest == null)
throw new ArgumentNullException("workerRequest");
string userAgent = workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderUserAgent);
if (userAgent != null && CultureInfo.InvariantCulture.CompareInfo.IsPrefix(userAgent, "UP"))
{
string text = workerRequest.GetUnknownRequestHeader("x-up-devcap-post-charset");
if (!string.IsNullOrEmpty(text))
{
try
{
return Encoding.GetEncoding(text);
}
catch
{
}
}
}
if (!workerRequest.HasEntityBody())
{
return null;
}
string contentType = workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
if (contentType == null)
{
return null;
}
string attributeFromHeader = GetAttributeFromHeader(contentType, "charset");
if (attributeFromHeader == null)
{
return null;
}
Encoding result = null;
try
{
result = Encoding.GetEncoding(attributeFromHeader);
}
catch
{
}
return result;
}
public static byte[] GetMultipartBoundary(HttpWorkerRequest workerRequest)
{
if (workerRequest == null)
throw new ArgumentNullException("workerRequest");
string text = workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
if (text == null)
return null;
text = GetAttributeFromHeader(text, "boundary");
if (text == null)
return null;
text = "--" + text;
return Encoding.ASCII.GetBytes(text.ToCharArray());
}
private void SetByteMarkers(HttpWorkerRequest workerRequest, Encoding encoding)
{
var contentType = workerRequest.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
var bufferIndex = contentType.IndexOf("boundary=") + "boundary=".Length;
var boundary = String.Concat("--", contentType.Substring(bufferIndex));
_boundaryBytes = encoding.GetBytes(string.Concat(boundary, _lineBreak));
_endHeaderBytes = encoding.GetBytes(string.Concat(_lineBreak, _lineBreak));
_endFileBytes = encoding.GetBytes(string.Concat(_lineBreak, boundary, "--", _lineBreak));
_lineBreakBytes = encoding.GetBytes(string.Concat(_lineBreak + boundary + _lineBreak));
}
void loadServerVariablesCollection()
{
HttpWorkerRequest wr = request.WorkerRequest;
if (loaded || (wr == null))
{
return;
}
IsReadOnly = false;
Add("ALL_HTTP", Fill(wr, true));
Add("ALL_RAW", Fill(wr, false));
Add("APPL_MD_PATH", wr.GetServerVariable("APPL_MD_PATH"));
Add("APPL_PHYSICAL_PATH", wr.GetServerVariable("APPL_PHYSICAL_PATH"));
if (null != request.Context.User && request.Context.User.Identity.IsAuthenticated)
{
Add("AUTH_TYPE", request.Context.User.Identity.AuthenticationType);
Add("AUTH_USER", request.Context.User.Identity.Name);
}
else
{
Add("AUTH_TYPE", "");
Add("AUTH_USER", "");
}
Add("AUTH_PASSWORD", wr.GetServerVariable("AUTH_PASSWORD"));
Add("LOGON_USER", wr.GetServerVariable("LOGON_USER"));
Add("REMOTE_USER", wr.GetServerVariable("REMOTE_USER"));
Add("CERT_COOKIE", wr.GetServerVariable("CERT_COOKIE"));
Add("CERT_FLAGS", wr.GetServerVariable("CERT_FLAGS"));
Add("CERT_ISSUER", wr.GetServerVariable("CERT_ISSUER"));
Add("CERT_KEYSIZE", wr.GetServerVariable("CERT_KEYSIZE"));
Add("CERT_SECRETKEYSIZE", wr.GetServerVariable("CERT_SECRETKEYSIZE"));
Add("CERT_SERIALNUMBER", wr.GetServerVariable("CERT_SERIALNUMBER"));
Add("CERT_SERVER_ISSUER", wr.GetServerVariable("CERT_SERVER_ISSUER"));
Add("CERT_SERVER_SUBJECT", wr.GetServerVariable("CERT_SERVER_SUBJECT"));
Add("CERT_SUBJECT", wr.GetServerVariable("CERT_SUBJECT"));
string sTmp = wr.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentLength);
if (null != sTmp)
{
Add("CONTENT_LENGTH", sTmp);
}
Add("CONTENT_TYPE", request.ContentType);
Add("GATEWAY_INTERFACE", wr.GetServerVariable("GATEWAY_INTERFACE"));
Add("HTTPS", wr.GetServerVariable("HTTPS"));
Add("HTTPS_KEYSIZE", wr.GetServerVariable("HTTPS_KEYSIZE"));
Add("HTTPS_SECRETKEYSIZE", wr.GetServerVariable("HTTPS_SECRETKEYSIZE"));
Add("HTTPS_SERVER_ISSUER", wr.GetServerVariable("HTTPS_SERVER_ISSUER"));
Add("HTTPS_SERVER_SUBJECT", wr.GetServerVariable("HTTPS_SERVER_SUBJECT"));
Add("INSTANCE_ID", wr.GetServerVariable("INSTANCE_ID"));
Add("INSTANCE_META_PATH", wr.GetServerVariable("INSTANCE_META_PATH"));
Add("LOCAL_ADDR", wr.GetLocalAddress());
Add("PATH_INFO", request.PathInfo);
Add("PATH_TRANSLATED", request.PhysicalPath);
Add("QUERY_STRING", request.QueryStringRaw);
Add("REMOTE_ADDR", request.UserHostAddress);
Add("REMOTE_HOST", request.UserHostName);
Add("REMOTE_PORT", wr.GetRemotePort().ToString());
Add("REQUEST_METHOD", request.HttpMethod);
Add("SCRIPT_NAME", request.FilePath);
Add("SERVER_NAME", wr.GetServerName());
Add("SERVER_PORT", wr.GetLocalPort().ToString());
if (wr.IsSecure())
{
Add("SERVER_PORT_SECURE", "1");
}
else
{
Add("SERVER_PORT_SECURE", "0");
}
Add("SERVER_PROTOCOL", wr.GetHttpVersion());
Add("SERVER_SOFTWARE", wr.GetServerVariable("SERVER_SOFTWARE"));
Add("URL", request.FilePath);
AddHeaderVariables(wr);
IsReadOnly = true;
loaded = true;
}
private void context_BeginRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
HttpContext context = app.Context;
// 我们需要HttpWorkerRequest的当前内容来处理请求数据.
// 要想知道HttpWorkerRequest更多更详细的内容,
// 请参考根目录下的Readme文件.
IServiceProvider provider = (IServiceProvider)context;
System.Web.HttpWorkerRequest request =
(HttpWorkerRequest)provider.GetService(typeof(HttpWorkerRequest));
// 获取当前请求的内容类型.
string contentType =
request.GetKnownRequestHeader(
System.Web.HttpWorkerRequest.HeaderContentType);
// 如果我们不能获取内容类型，跳过这个模块.
if (contentType == null)
{
return;
}
// 如果内容类型不是multipart/form-data,
// 意味着没有上传请求，
// 就可以跳过这个模块.
if (contentType.IndexOf("multipart/form-data") == -1)
{
return;
}
string boundary = contentType.Substring(contentType.IndexOf("boundary=") + 9);
// 获取当前请求的内容长度.
long contentLength = Convert.ToInt64(
request.GetKnownRequestHeader(
HttpWorkerRequest.HeaderContentLength));
// 获取HTTP请求主体的那些
// 当前已经被读取的数据.
// 这是我们存储上传文件的第一步.
byte[] data = request.GetPreloadedEntityBody();
// 创建一个管理类的实例可以
// 帮助过滤请求数据.
FileUploadDataManager storeManager =
new FileUploadDataManager(boundary);
// 添加预装载的数据.
storeManager.AppendData(data);
UploadStatus status = null;
if (context.Cache[_cacheContainer] == null)
{
//初始化UploadStatus，
//它被用来存储客户状态.
status = new UploadStatus(
context, // 把当前内容发送到status被事件使用
//
contentLength // 初始化文件长度.
);
// 当更新状态时绑定事件.
status.OnDataChanged +=
new UploadStatusEventHandler(status_OnDataChanged);
}
else
{
status = context.Cache[_cacheContainer] as UploadStatus;
if (status.IsFinished)
{
return;
}
}
// 把首先读到的数据长度设置到status class.
if (data != null)
{
status.UpdateLoadedLength(data.Length);
}
// 获取留下的请求数据的长度.
long leftdata = status.ContentLength - status.LoadedLength;
// 定义一个自定义的缓存区的长度
int customBufferLength = Convert.ToInt32(Math.Ceiling((double)contentLength / 16));
if (customBufferLength < 1024)
{
customBufferLength = 1024;
}
while (!request.IsEntireEntityBodyIsPreloaded() && leftdata > 0)
{
// 检查用户如果终止了上传，关闭连接.
if (status.Aborted)
{
// 删除缓存文件.
foreach (UploadFile file in storeManager.FilterResult)
{
file.ClearCache();
}
request.CloseConnection();
return;
}
// 如果剩下的请求数据小于缓
// 冲区的长度，把缓冲区的
// 长度设置成剩余数据的长度.
if (leftdata < customBufferLength)
{
customBufferLength = (int)leftdata;
}
// 读取自定义缓冲区的长度的请求数据
data = new byte[customBufferLength];
int redlen = request.ReadEntityBody(data, customBufferLength);
if (customBufferLength > redlen)
{
data = BinaryHelper.SubData(data, 0, redlen);
}
// 添加剩余数据.
storeManager.AppendData(data);
// 把缓冲区的长度添加到status来更新上传status.
status.UpdateLoadedLength(redlen);
leftdata -= redlen;
}
// 当所有的数据都被读取之后,
// 保存上传文件.
foreach (UploadFile file in storeManager.FilterResult)
{
file.Save(null);
}
}
internal UploadHttpRequest(HttpContext context)
{
_request = context.Request;
_worker = GetWorkerRequest(context);
// TODO: should we silently ignore?
if (_worker == null)
throw new HttpException("Could not intercept worker.");
string fileSizeHeader = _worker.GetUnknownRequestHeader("X-File-Size");
if (string.IsNullOrEmpty(fileSizeHeader) || !long.TryParse(fileSizeHeader, out _contentLength))
_contentLength = long.Parse(_worker.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentLength));
}
