protected virtual Func<Meta<ICache>, Boolean> CacheTypeChecker(ECacheType cacheType)
{
return
cache =>
cache.Metadata["CacheType"]
.Equals(cacheType);
}
public ActionResult Index2(EFileType type,
string library,
string version,
string file = null,
ECacheType renew = ECacheType.cache)
{
return(View("Index"));
}
public ICacher GetCacher(ECacheType cacheType)
{
switch (cacheType)
{
case ECacheType.MemCache:
return(new MemCache());
case ECacheType.WinCache:
return(new MemCache());
default:
return(null);
}
}
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();
}
}
