/// <summary>
/// Sets the output cache parameters and also the client side caching parameters
/// </summary>
/// <param name="context"></param>
private void SetCaching(HttpContext context, string fileName)
{
//This ensures OutputCaching is set for this handler and also controls
//client side caching on the browser side. Default is 10 days.
TimeSpan duration = TimeSpan.FromDays(10);
HttpCachePolicy cache = context.Response.Cache;
cache.SetCacheability(HttpCacheability.Public);
cache.SetExpires(DateTime.Now.Add(duration));
cache.SetMaxAge(duration);
cache.SetValidUntilExpires(true);
cache.SetLastModified(DateTime.Now);
cache.SetETag(Guid.NewGuid().ToString());
//set server OutputCache to vary by our params
cache.VaryByParams["t"] = true;
cache.VaryByParams["s"] = true;
//don't allow varying by wildcard
cache.SetOmitVaryStar(true);
//ensure client browser maintains strict caching rules
cache.AppendCacheExtension("must-revalidate, proxy-revalidate");
//This is the only way to set the max-age cachability header in ASP.Net!
FieldInfo maxAgeField = cache.GetType().GetField("_maxAge", BindingFlags.Instance | BindingFlags.NonPublic);
maxAgeField.SetValue(cache, duration);
//make this output cache dependent on the file if there is one.
if (!string.IsNullOrEmpty(fileName))
{
context.Response.AddFileDependency(fileName);
}
}
/// <summary>
/// Set the response cache headers for WebResource
/// </summary>
/// <param name="cache"></param>
/// <param name="etag"></param>
/// <param name="maxAge"></param>
protected static void SetCachingHeadersForWebResource(HttpCachePolicy cache, string etag, TimeSpan maxAge)
{
cache.SetCacheability(HttpCacheability.Public);
cache.VaryByParams["d"] = true;
cache.SetOmitVaryStar(true);
cache.SetExpires(DateTime.Now.Add(maxAge));
cache.SetValidUntilExpires(true);
cache.VaryByHeaders["Accept-Encoding"] = true;
cache.SetETag(string.Concat("\"", etag, "\""));
}
public void ProcessRequest(HttpContext context)
{
string[] jsFiles = context.Request.QueryString["jsfiles"].Split(',');
List <string> files = new List <string>();
StringBuilder response = new StringBuilder();
foreach (string jsFile in jsFiles)
{
if (!jsFile.EndsWith(".js", StringComparison.OrdinalIgnoreCase))
{
//log custom exception
context.Response.StatusCode = 403;
return;
}
try
{
JavaScriptCompressor javaScriptCompressor = new JavaScriptCompressor();
string filePath = context.Server.MapPath(jsFile);
string js = File.ReadAllText(filePath);
string compressedJS = javaScriptCompressor.Compress(js);
response.Append(compressedJS);
}
catch (Exception ex)
{
//log exception
context.Response.StatusCode = 500;
return;
}
}
context.Response.Write(response.ToString());
string version = "1.0"; //your dynamic version number here
context.Response.ContentType = "application/javascript";
context.Response.AddFileDependencies(files.ToArray());
HttpCachePolicy cache = context.Response.Cache;
cache.SetCacheability(HttpCacheability.Public);
cache.VaryByParams["jsfiles"] = true;
cache.VaryByParams["version"] = true;
cache.SetETag(version);
cache.SetLastModifiedFromFileDependencies();
cache.SetMaxAge(TimeSpan.FromDays(14));
cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
}
/// <summary>
/// Sets the ETag HTTP header to the specified string.
/// </summary>
/// <param name="etag">The text to use for the ETag header. </param>
/// <exception cref="T:System.ArgumentNullException"><paramref name="etag" /> is null. </exception>
/// <exception cref="T:System.InvalidOperationException">
/// The ETag header has already been set. - or -The
/// <see cref="M:System.Web.HttpCachePolicy.SetETagFromFileDependencies" /> has already been called.
/// </exception>
public void SetETag(string etag)
{
policy.SetETag(etag);
}
internal static void ProcessRequestInternal(HttpContext context, string pathOverride)
{
HttpRequest request = context.Request;
HttpResponse response = context.Response;
string virtualPathWithPathInfo;
string physicalPath;
FileInfo fileInfo;
long fileLength;
DateTime lastModifiedInUtc;
string etag;
string rangeHeader;
// custom virtual path providers that don't yeild a MapPathBasedVirtualFile
// are a special case, and do not support TransmitFile, WriteFile, Range requests,
// or the cache policy that we apply below
/*
* if (ProcessRequestForNonMapPathBasedVirtualFile(request, response, overrideVirtualPath)) {
* return;
* }
*
* if (overrideVirtualPath == null)
* {
* virtualPathWithPathInfo = request.Path;
* physicalPath = request.PhysicalPath;
* }
* else {
* virtualPathWithPathInfo = overrideVirtualPath;
* physicalPath = request.MapPath(overrideVirtualPath);
* }
*/
if (pathOverride != null)
{
physicalPath = pathOverride;
}
else
{
physicalPath = context.Request.PhysicalPath;
}
// Debug.Trace("StaticFileHandler", "Path= " + virtualPathWithPathInfo + ", PhysicalPath= " + physicalPath);
try
{
fileInfo = GetFileInfo(physicalPath);
}
catch (HttpException hex)
{
int httpCode = hex.GetHttpCode();
string httpError = String.Format("{0} ({1})", hex.Message, physicalPath);
throw new HttpException(httpCode, httpError, hex);
}
// Determine Last Modified Time. We might need it soon
// if we encounter a Range: and If-Range header
// Using UTC time to avoid daylight savings time bug 83230
lastModifiedInUtc = new DateTime(fileInfo.LastWriteTimeUtc.Year,
fileInfo.LastWriteTimeUtc.Month,
fileInfo.LastWriteTimeUtc.Day,
fileInfo.LastWriteTimeUtc.Hour,
fileInfo.LastWriteTimeUtc.Minute,
fileInfo.LastWriteTimeUtc.Second,
0,
DateTimeKind.Utc);
// Because we can't set a "Last-Modified" header to any time
// in the future, check the last modified time and set it to
// DateTime.Now if it's in the future.
// This is to fix VSWhidbey #402323
DateTime utcNow = DateTime.UtcNow;
if (lastModifiedInUtc > utcNow)
{
// use 1 second resolution
lastModifiedInUtc = new DateTime(utcNow.Ticks - (utcNow.Ticks % TimeSpan.TicksPerSecond), DateTimeKind.Utc);
}
etag = GenerateETag(lastModifiedInUtc, utcNow);
fileLength = fileInfo.Length;
// is this a Range request?
rangeHeader = request.Headers["Range"];
if (rangeHeader != null && rangeHeader.StartsWith("bytes", StringComparison.OrdinalIgnoreCase) &&
ProcessRangeRequest(context, physicalPath, fileLength, rangeHeader, etag, lastModifiedInUtc))
{
return;
}
// if we get this far, we're sending the entire file
SendFile(physicalPath, 0, fileLength, fileLength, context);
// Specify content type. Use extension to do the mapping
response.ContentType = MimeMapping.GetMapping(physicalPath);
// Static file handler supports byte ranges
response.AppendHeader("Accept-Ranges", "bytes");
// We want to flush cache entry when static file has changed
response.AddFileDependency(physicalPath);
/*
* NOTE: This was the code originally in the handler:
* // Set an expires in the future.
* response.Cache.SetExpires(utcNow.AddMinutes(5));
* // always set Last-Modified
* response.Cache.SetLastModified(lastModifiedInUtc);
* // always set ETag
* response.Cache.SetETag(etag);
* // always set Cache-Control to public
* response.Cache.SetCacheability(HttpCacheability.ServerAndPrivate);
*/
// set cache headers
HttpCachePolicy cachePolicy = response.Cache;
SetCachingPolicy(cachePolicy);
// set cache file info
cachePolicy.SetETag(etag);
cachePolicy.SetLastModified(lastModifiedInUtc);
}
public override void SetETag(string etag)
{
_httpCachePolicy.SetETag(etag);
}
void IHttpHandler.ProcessRequest(HttpContext context)
{
Image image;
ImageFormat imageFormat;
string contentType = null;
MemoryStream memStream = null;
ImageCache imageCache;
bool enableCaching = true;
bool cacheValid = false;
int minutes = Null.NullInteger;
string cacheKey = null;
string eTag = null;
// Get params
string imagePath = context.Request.QueryString["IP"];
string thumbWidth = context.Request.QueryString["IW"];
string background = context.Request.QueryString["BC"];
string duration = context.Request.QueryString["CD"];
// Get Header Etag
string headerEtag = context.Request.Headers["If-None-Match"];
// When image param start by http or https,
// it's probably an external image!
ImageTypeName imageType;
if (imagePath.IndexOf("http://") > -1 || imagePath.IndexOf("https://") > -1)
{
// Image will be get from an http request
imageType = ImageTypeName.URI;
}
else
{
// Image will be read from disk
imageType = ImageTypeName.FilePath;
imagePath = context.Server.MapPath(imagePath);
}
// Default image if not found
string defaultImage = context.Server.MapPath("~/images/thumbnail.jpg");
try
{
if (string.IsNullOrEmpty(imagePath) == false)
{
// Initializations
if (string.IsNullOrEmpty(thumbWidth))
{
thumbWidth = "175";
}
if (string.IsNullOrEmpty(duration))
{
enableCaching = false;
}
else
{
minutes = Convert.ToInt32(duration);
}
// Get cached image thumbnail
if (enableCaching)
{
cacheKey = string.Format("Store_{0}_{1}_{2}", imagePath, thumbWidth, background);
eTag = cacheKey.GetHashCode().ToString("X");
imageCache = (ImageCache)DataCache.GetCache(cacheKey);
if (imageCache != null)
{
contentType = imageCache.ContentType;
memStream = new MemoryStream(imageCache.Data);
cacheValid = true;
}
}
// If cache is null, create the thumbnail
if (!cacheValid)
{
image = GetImage(imageType, imagePath, defaultImage);
imageFormat = image.RawFormat;
contentType = GetContentType(imageFormat);
Size thumbSize = ThumbSize(image.Width, image.Height, Convert.ToInt16(thumbWidth));
Bitmap thumb = new Bitmap(thumbSize.Width, thumbSize.Height);
Graphics g = Graphics.FromImage(thumb);
g.CompositingQuality = CompositingQuality.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
// Fill background with specified color
// to mimics original GIF transparency
if (imageFormat.Equals(ImageFormat.Gif))
{
Brush bgBrush = GetBrush(GetHexDigits(background));
g.FillRectangle(bgBrush, 0, 0, thumbSize.Width, thumbSize.Height);
}
g.DrawImage(image, 0, 0, thumbSize.Width, thumbSize.Height);
// Create memory stream from thumbnail
memStream = new MemoryStream();
thumb.Save(memStream, imageFormat);
image.Dispose();
thumb.Dispose();
// Save thumbnail to cache
if (enableCaching)
{
imageCache = new ImageCache(contentType, memStream.ToArray());
TimeSpan sliding = new TimeSpan(0, Convert.ToInt32(duration), 0);
DataCache.SetCache(cacheKey, imageCache, sliding);
}
}
// If an Etag is present and valid
if (string.IsNullOrEmpty(headerEtag) == false && headerEtag == eTag)
{
// Return 304 Not Modified
context.Response.Clear();
context.Response.StatusCode = (int)HttpStatusCode.NotModified;
context.Response.SuppressContent = true;
}
else
{
// Return thumbnail to browser
context.Response.StatusCode = (int)HttpStatusCode.OK;
context.Response.ContentType = contentType;
if (enableCaching)
{
HttpCachePolicy contextCache = context.Response.Cache;
contextCache.SetCacheability(HttpCacheability.ServerAndPrivate);
contextCache.SetExpires(DateTime.Now.AddMinutes(minutes).ToUniversalTime());
contextCache.SetLastModified(DateTime.Now.ToUniversalTime());
contextCache.SetETag(eTag);
}
memStream.WriteTo(context.Response.OutputStream);
}
memStream.Close();
memStream.Dispose();
}
}
catch
{
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
}
}
public void Deny_Unrestricted()
{
HttpCachePolicy cache = response.Cache;
Assert.IsNotNull(cache.VaryByHeaders, "VaryByHeaders");
Assert.IsNotNull(cache.VaryByParams, "VaryByParams");
cache.AddValidationCallback(new HttpCacheValidateHandler(Validate), null);
cache.AppendCacheExtension("mono");
cache.SetCacheability(HttpCacheability.NoCache);
cache.SetCacheability(HttpCacheability.NoCache, "mono");
cache.SetETag("etag");
try
{
cache.SetETagFromFileDependencies();
}
catch (TypeInitializationException)
{
// 1.1 tries to initialize HttpRuntime
}
catch (InvalidOperationException)
{
// expected
}
cache.SetExpires(DateTime.MinValue);
cache.SetLastModified(DateTime.Now);
try
{
cache.SetLastModifiedFromFileDependencies();
}
catch (InvalidOperationException)
{
// expected
}
catch (NotImplementedException)
{
// mono
}
cache.SetMaxAge(TimeSpan.FromTicks(1000));
try
{
cache.SetNoServerCaching();
}
catch (NotImplementedException)
{
// mono
}
try
{
cache.SetNoStore();
}
catch (NotImplementedException)
{
// mono
}
try
{
cache.SetNoTransforms();
}
catch (NotImplementedException)
{
// mono
}
cache.SetProxyMaxAge(TimeSpan.FromTicks(2000));
cache.SetRevalidation(HttpCacheRevalidation.None);
cache.SetSlidingExpiration(true);
try
{
cache.SetValidUntilExpires(true);
}
catch (NotImplementedException)
{
// mono
}
cache.SetVaryByCustom("custom");
cache.SetAllowResponseInBrowserHistory(true);
#if NET_2_0
try
{
cache.SetOmitVaryStar(false);
}
catch (NotImplementedException)
{
// mono
}
#endif
}
internal static void ProcessRequestInternal(HttpContext context, string pathOverride)
{
HttpRequest request = context.Request;
HttpResponse response = context.Response;
string physicalPath = context.Request.PhysicalPath;
string fileName = Path.GetFileName(physicalPath);
if (pathOverride != null)
{
physicalPath = pathOverride;
}
FileInfo info;
if (!FileExists(physicalPath))
{
string error = "File does not exist";
if (context.IsDebuggingEnabled)
{
error += String.Format(": {0}", physicalPath);
}
throw new HttpException(404, error);
}
try
{
info = new FileInfo(physicalPath);
}
catch (IOException exception)
{
throw new HttpException(404, "Error trying to enumerate files", exception);
}
catch (SecurityException exception2)
{
throw new HttpException(401, "File enumerator access denied", exception2);
}
if (info.Length == 0)
{
throw new HttpException(404, "File is empty");
}
if ((info.Attributes & FileAttributes.Hidden) != 0)
{
throw new HttpException(404, "File is hidden");
}
if (physicalPath[physicalPath.Length - 1] == '.')
{
throw new HttpException(404, "File does not exist");
}
if ((info.Attributes & FileAttributes.Directory) != 0)
{
if (request.Path.EndsWith("/"))
{
throw new HttpException(403, SR.GetString("Missing star mapping"));
}
response.Redirect(request.Path + "/");
}
else
{
DateTime lastModTime = new DateTime(info.LastWriteTime.Year, info.LastWriteTime.Month, info.LastWriteTime.Day, info.LastWriteTime.Hour, info.LastWriteTime.Minute, info.LastWriteTime.Second, 0);
if (lastModTime > DateTime.Now)
{
lastModTime = DateTime.Now;
}
string strETag = GenerateETag(context, lastModTime);
try
{
BuildFileItemResponse(context, physicalPath, info.Length, lastModTime, strETag);
}
catch (Exception exception3)
{
if ((exception3 is ExternalException) && IsSecurityError(((ExternalException)exception3).ErrorCode))
{
throw new HttpException(401, "Resource access forbidden");
}
}
// set cache headers
HttpCachePolicy cachePolicy = context.Response.Cache;
SetCachingPolicy(cachePolicy);
// set cache file info
cachePolicy.SetETag(strETag);
cachePolicy.SetLastModified(lastModTime);
}
}
/// <summary>
/// This will make the browser and server keep the output
/// in its cache and thereby improve performance.
/// See http://en.wikipedia.org/wiki/HTTP_ETag
/// </summary>
/// <param name="path">
/// The combined path to the items.
/// </param>
/// <param name="context">
/// the <see cref="T:System.Web.HttpContext">HttpContext</see> object that provides
/// references to the intrinsic server objects
/// </param>
/// <param name="responseType">
/// The HTTP MIME type to to send.
/// </param>
/// <param name="futureExpire">
/// Whether the response headers should be set to expire in the future.
/// </param>
/// <param name="fileMonitors">
/// The file Monitors.
/// </param>
protected void SetHeaders(string path, HttpContext context, ResponseType responseType, bool futureExpire, IList <string> fileMonitors)
{
// Generate a hash from the combined last write times of any monitors and
// the path.
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append(path);
if (fileMonitors != null)
{
foreach (string fileMonitor in fileMonitors)
{
FileInfo fileInfo = new FileInfo(fileMonitor);
stringBuilder.AppendFormat("{0}", fileInfo.LastWriteTimeUtc);
}
}
int hash = stringBuilder.ToString().GetHashCode();
HttpResponse response = context.Response;
HttpCachePolicy cache = response.Cache;
response.ContentType = responseType.ToDescription();
cache.VaryByHeaders["Accept-Encoding"] = true;
if (futureExpire)
{
int maxCacheDays = CruncherConfiguration.Instance.MaxCacheDays;
cache.SetExpires(DateTime.UtcNow.AddDays(maxCacheDays));
cache.SetMaxAge(new TimeSpan(maxCacheDays, 0, 0, 0));
if (fileMonitors != null)
{
response.AddFileDependencies(fileMonitors.ToArray());
cache.SetLastModifiedFromFileDependencies();
}
cache.SetValidUntilExpires(false);
}
else
{
cache.SetExpires(DateTime.UtcNow.AddDays(-1));
cache.SetMaxAge(new TimeSpan(0, 0, 0, 0));
}
cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
string etag = string.Format(CultureInfo.InvariantCulture, "\"{0}\"", hash);
string incomingEtag = context.Request.Headers["If-None-Match"];
cache.SetETag(etag);
cache.SetCacheability(HttpCacheability.Public);
if (string.Compare(incomingEtag, etag, StringComparison.Ordinal) != 0)
{
return;
}
response.Clear();
response.StatusCode = (int)HttpStatusCode.NotModified;
response.SuppressContent = true;
}
/// <summary>
/// Configures ASP.Net's Cache policy based on properties set
/// </summary>
/// <param name="policy">cache policy to set</param>
void ICachePolicyConfigurer.Configure(HttpCachePolicy policy)
{
policy.SetAllowResponseInBrowserHistory(allowInHistory);
policy.SetCacheability(cacheability);
policy.SetOmitVaryStar(omitVaryStar);
policy.SetRevalidation(revalidation);
policy.SetSlidingExpiration(slidingExpiration);
policy.SetValidUntilExpires(validUntilExpires);
if (duration != 0)
{
policy.SetExpires(DateTime.Now.AddSeconds(duration));
}
if (varyByContentEncodings != null)
{
foreach (var header in varyByContentEncodings.Split(','))
{
policy.VaryByContentEncodings[header.Trim()] = true;
}
}
if (varyByCustom != null)
{
policy.SetVaryByCustom(varyByCustom);
}
if (varyByHeaders != null)
{
foreach (var header in varyByHeaders.Split(','))
{
policy.VaryByHeaders[header.Trim()] = true;
}
}
if (varyByParams != null)
{
foreach (var param in varyByParams.Split(','))
{
policy.VaryByParams[param.Trim()] = true;
}
}
if (cacheExtension != null)
{
policy.AppendCacheExtension(cacheExtension);
}
if (setEtagFromFileDependencies)
{
policy.SetETagFromFileDependencies();
}
if (setLastModifiedFromFileDependencies)
{
policy.SetLastModifiedFromFileDependencies();
}
if (setNoServerCaching)
{
policy.SetNoServerCaching();
}
if (setNoStore)
{
policy.SetNoStore();
}
if (setNoTransforms)
{
policy.SetNoTransforms();
}
if (etag != null)
{
policy.SetETag(etag);
}
if (isLastModifiedSet)
{
policy.SetLastModified(lastModified);
}
if (isMaxAgeSet)
{
policy.SetMaxAge(TimeSpan.FromSeconds(maxAge));
}
if (isProxyMaxAgeSet)
{
policy.SetProxyMaxAge(TimeSpan.FromSeconds(proxyMaxAge));
}
}
public override void SetETag(string etag)
{
_policy.SetETag(etag);
}
public void ProcessRequest(HttpContext context)
{
HttpRequest request = context.Request;
string phyFilePath = request.PhysicalPath;
if (!File.Exists(phyFilePath))
{
string phyDirPath = Path.GetDirectoryName(phyFilePath);
if (!string.IsNullOrWhiteSpace(phyDirPath))
{
string fileName = Path.GetFileNameWithoutExtension(phyFilePath);
if (!string.IsNullOrWhiteSpace(fileName))
{
string fileExtension = Path.GetExtension(phyFilePath);
if (!string.IsNullOrWhiteSpace(fileExtension))
{
string[] fileNames = fileName.Split(new char[] { '_' }, StringSplitOptions.RemoveEmptyEntries);
if (fileNames != null)
{
int length = fileNames.Length;
if (length > 1)
{
fileName = string.Join("_", fileNames, 0, length - 1);
phyFilePath = Path.Combine(phyDirPath, string.Concat(fileName, fileExtension));
}
Array.Clear(fileNames, 0, length);
fileNames = null;
}
fileExtension = null;
}
fileName = null;
}
phyDirPath = null;
}
}
if (File.Exists(phyFilePath))
{
HttpResponse response = context.Response;
ECacheType cacheType = ECacheType.None;
string subfix = Path.GetExtension(phyFilePath);
if (".css".Equals(subfix, StringComparison.CurrentCultureIgnoreCase))
{
cacheType = ECacheType.Css;
response.ContentType = "text/css";
}
else if (".js".Equals(subfix, StringComparison.CurrentCultureIgnoreCase))
{
cacheType = ECacheType.Js;
response.ContentType = "application/x-javascript";
}
#if !DEBUG
if (cacheType != ECacheType.None)
{
//http://www.cnblogs.com/shanyou/archive/2012/05/01/2477500.html
const int DAYS = 30;
string ifModifiedSince = request.Headers["If-Modified-Since"];
if (!string.IsNullOrEmpty(ifModifiedSince) &&
TimeSpan.FromTicks(DateTime.Now.Ticks - DateTime.Parse(ifModifiedSince).Ticks).Days < DAYS)
{
response.StatusCode = (int)System.Net.HttpStatusCode.NotModified;
response.StatusDescription = "Not Modified";
response.End();
return;
}
else
{
string fileContent = null;
string ifNoneMatch = request.Headers["If-None-Match"];
string eTag = string.Format("\"{0}\"", this.GetFileMd5(string.Concat(phyFilePath, fileContent = this.GetFileContent(phyFilePath))));
if (!string.IsNullOrEmpty(ifNoneMatch) && ifNoneMatch.Equals(eTag))
{
response.StatusCode = (int)System.Net.HttpStatusCode.NotModified;
response.StatusDescription = "Not Modified";
response.End();
return;
}
else
{
HttpCachePolicy cache = response.Cache;
//cache.SetLastModifiedFromFileDependencies();//程序自动读取文件的LastModified
cache.SetLastModified(context.Timestamp); //因为静态文件的URL是特殊处理过，所以程序自动读取文件是在磁盘上找不到的，故改成手工代码设置文件的LastModified的方式。wangyunpeng，2016-4-12
//cache.SetETagFromFileDependencies();//程序自动读取文件的ETag
cache.SetETag(eTag); //因为静态文件的URL是特殊处理过，所以程序自动读取文件是在磁盘上找不到的，故改成手工代码设置文件的ETag的方式。wangyunpeng，2016-4-12
cache.SetCacheability(HttpCacheability.Public);
cache.SetExpires(DateTime.Now.AddDays(DAYS));
TimeSpan timeSpan = TimeSpan.FromDays(DAYS);
cache.SetMaxAge(timeSpan);
cache.SetProxyMaxAge(timeSpan);
cache.SetValidUntilExpires(true);
cache.SetSlidingExpiration(true);
#region 压缩js和css文件
if (!string.IsNullOrWhiteSpace(fileContent))
{
if (cacheType == ECacheType.Js)
{
string fileName = Path.GetFileName(phyFilePath);
if (_MiniJsFiles.Contains(fileName, new StringComparer()))
{
fileContent = this.PackJavascript(fileContent);//ECMAScript压缩
}
}
//输出内容
response.ContentEncoding = _GlobalizationSection == null ? Encoding.UTF8 : _GlobalizationSection.ResponseEncoding;
response.Write(fileContent);
}
#endregion
}
}
}
else
{//直接输出文件
response.WriteFile(phyFilePath);
}
#else
//直接输出文件
response.WriteFile(phyFilePath);
#endif
//取消GZIP压缩，IE7,IE8,Safari支持GZIP压缩显示css和js有问题。wangyunpeng
if (this.IsAcceptEncoding(request, GZIP))
{
response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
this.SetResponseEncoding(response, GZIP);
}
else if (this.IsAcceptEncoding(request, DEFLATE))
{
response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
this.SetResponseEncoding(response, DEFLATE);
}
response.End();
}
}
