/// <summary>
///
/// </summary>
/// <param name="filterContext"></param>
public override void OnActionExecuted(ActionExecutedContext filterContext)
{
var acDomain = filterContext.HttpContext.Application[Constants.ApplicationRuntime.AcDomainCacheKey] as IAcDomain;
if (Enable || acDomain.Config.EnableClientCache)
{
if (Duration <= 0)
{
return;
}
HttpCachePolicyBase cache = filterContext.HttpContext.Response.Cache;
TimeSpan cacheDuration = TimeSpan.FromSeconds(Duration);
cache.SetCacheability(HttpCacheability.Public);
cache.SetExpires(DateTime.Now.Add(cacheDuration));
if (!string.IsNullOrEmpty(VaryByParam))
{
string[] parms = VaryByParam.Split(';');
foreach (var parm in parms)
{
cache.VaryByParams[parm] = true;
}
}
cache.SetMaxAge(cacheDuration);
cache.AppendCacheExtension("must-revalidate, proxy-revalidate");
}
}
string GetCacheKey(HttpActionContext actionContext)
{
StringBuilder sb = new StringBuilder("b1", actionContext.Request.RequestUri.AbsolutePath.Length + 2);
sb.Append(actionContext.Request.RequestUri.AbsolutePath.ToLower());
if (!"none".Equals(VaryByParam, StringComparison.OrdinalIgnoreCase))
{
NameValueCollection querys = actionContext.Request.RequestUri.ParseQueryString();
if ("*".Equals(VaryByParam) || string.IsNullOrEmpty(VaryByParam))
{
foreach (var item in querys.AllKeys)
{
sb.Append(item.ToLower());
sb.Append(querys[item]);
}
}
else
{
var keys = VaryByParam.Split(';');
foreach (var item in keys)
{
if (querys.AllKeys.Contains(item, StringComparer.OrdinalIgnoreCase))
{
sb.Append(item.ToLower());
sb.Append(querys[item]);
}
}
}
}
if (!string.IsNullOrEmpty(VaryByCustom))
{
var customs = VaryByParam.Split(';');
foreach (var item in customs)
{
if (ApiOutputCacheConfig.GlobalVaryByCustomFunc != null)
{
sb.Append(item.ToLower());
sb.Append(ApiOutputCacheConfig.GlobalVaryByCustomFunc(actionContext.Request, item));
}
else
{
throw new Exception("要使用VaryByCustom，必须先定义VaryByCustomFunc或GlobalVaryByCustomFunc");
}
}
}
if (VaryByMediaType)
{
var negotiator = actionContext.Request.GetConfiguration().Services.GetContentNegotiator();
var negotiateResult = negotiator.Negotiate(actionContext.ActionDescriptor.ReturnType, actionContext.Request, actionContext.Request.GetConfiguration().Formatters);
sb.Append(negotiateResult.MediaType);
}
return(sb.ToString());
}
private string CreateCacheKey(RouteValueDictionary routeValues,
IDictionary <string, object> actionParameters)
{
var sb = new StringBuilder(routeValues["controller"].ToString());
sb.Append("_").Append(routeValues["action"].ToString());
if (string.IsNullOrWhiteSpace(VaryByParam))
{
return(sb.ToString());
}
if (VaryByParam == "*")
{
foreach (var p in actionParameters)
{
sb.Append("_");
sb.Append(GetObjectValue(p.Value));
}
return(sb.ToString());
}
if (!VaryByParamsSplitCache.TryGetValue(VaryByParam, out var varyByParamsSplit))
{
varyByParamsSplit = VaryByParam.Split(new[] { ',', ' ' },
StringSplitOptions.RemoveEmptyEntries);
VaryByParamsSplitCache[VaryByParam] = varyByParamsSplit;
}
foreach (var varyByParam in varyByParamsSplit)
{
if (!actionParameters.TryGetValue(varyByParam, out object varyByParamObject))
{
continue;
}
sb.Append("_");
sb.Append(GetObjectValue(varyByParamObject));
}
return(sb.ToString());
}
/// <summary>
/// Creates the cache key.
/// </summary>
/// <param name="routeValues">The route values.</param>
/// <returns>The cache key.</returns>
private string CreateCacheKey(RouteValueDictionary routeValues, IDictionary <string, object> actionParameters)
{
// Create the cache key prefix as the controller and action method
var sb = new StringBuilder(routeValues["controller"].ToString());
sb.Append("_").Append(routeValues["action"].ToString());
if (!string.IsNullOrWhiteSpace(VaryByParam))
{
// Append the cache key from the vary by parameters
object varyByParamObject = null;
string[] varyByParamsSplit = null;
bool gotValue = false;
_lock.EnterReadLock();
try
{
gotValue = _varyByParamsSplitCache.TryGetValue(VaryByParam, out varyByParamsSplit);
}
finally
{
_lock.ExitReadLock();
}
if (!gotValue)
{
_lock.EnterWriteLock();
try
{
varyByParamsSplit = VaryByParam.Split(",; ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
_varyByParamsSplitCache[VaryByParam] = varyByParamsSplit;
}
finally
{
_lock.ExitWriteLock();
}
}
foreach (var varyByParam in varyByParamsSplit)
{
// Skip invalid parameters
if (!actionParameters.TryGetValue(varyByParam, out varyByParamObject))
{
continue;
}
// Sometimes a parameter will be null
if (varyByParamObject == null)
{
continue;
}
sb.Append("_").Append(varyByParamObject.ToString());
}
}
// Handle VaryByCustom
if (!string.IsNullOrWhiteSpace(VaryByCustom))
{
sb.Append("_" + HttpContext.Current.ApplicationInstance.GetVaryByCustomString(HttpContext.Current, VaryByCustom));
}
// Handle VaryByHeader
if (!string.IsNullOrWhiteSpace(VaryByHeader))
{
sb.Append("_Header");
foreach (string Header in VaryByHeader.Split(";".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
{
try {
string[] vals = HttpContext.Current.Request.Headers[Header] != null?HttpContext.Current.Request.Headers.GetValues(Header) : new string[]
{
};
sb.Append($"_{Header}={string.Join("|", vals)}");
} catch (Exception) { }
}
}
if (!string.IsNullOrWhiteSpace(VaryByCookie))
{
sb.Append("_Cookie");
foreach (string Cookie in VaryByCookie.Split(";".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
{
try
{
string val = HttpContext.Current.Request.Cookies[Cookie] != null ? HttpContext.Current.Request.Cookies[Cookie].Value : "";
sb.Append($"_{Cookie}={val}");
}
catch (Exception) { }
}
}
return(sb.ToString());
}
/// <summary>
/// Retrieves the cache key based on the current property values.
/// </summary>
/// <param name="context"></param>
/// <param name="control"></param>
/// <param name="container"></param>
/// <param name="getDefaultKey"></param>
/// <returns></returns>
public string GetCacheKey(System.Web.HttpContext context, System.Web.UI.Control control, object container, Converter <string, string> getDefaultKey)
{
string cacheKey = KeyFormat;
if (Parameters != null && Parameters.Count > 0)
{
// use the parameters collection to build the dependency
IOrderedDictionary values = Parameters.GetValues(context, control);
if (container != null)
{
// process CacheItemParameter objects, lookup the value based on the container
foreach (Parameter param in Parameters)
{
if (param is CacheItemParameter)
{
string format = (param as CacheItemParameter).Format;
string propertyName = (param as CacheItemParameter).PropertyName;
string result = DataBinder.Eval(container, propertyName, format);
if (!string.IsNullOrEmpty(result))
{
values[param.Name] = result;
}
}
}
}
if (!string.IsNullOrEmpty(KeyFormat))
{
foreach (DictionaryEntry entry in values)
{
if (entry.Key != null)
{
string key = entry.Key.ToString().Trim();
if (!key.StartsWith("@"))
{
key = "@" + key;
}
cacheKey = Regex.Replace(cacheKey, key, "{0}".FormatWith(entry.Value), RegexOptions.IgnoreCase);
}
}
}
}
else if (!string.IsNullOrEmpty(Name) && !string.IsNullOrEmpty(PropertyName))
{
string result = null;
if (container != null)
{
try
{
result = DataBinder.Eval(container, PropertyName, "{0}");
}
catch (Exception e)
{
Tracing.FrameworkError("CacheKeyDependency", "GetCacheKey", "Invalid cache parameter settings.");
Tracing.FrameworkError("CacheKeyDependency", "GetCacheKey", e.ToString());
}
}
// use this object to build the dependency
string key = Name.Trim();
if (!key.StartsWith("@"))
{
key = "@" + key;
}
cacheKey = Regex.Replace(cacheKey, key, result ?? string.Empty, RegexOptions.IgnoreCase);
}
if (string.IsNullOrEmpty(cacheKey))
{
// could not find a suitable cacheKey from the parameters, build a default key
cacheKey = "Adxstudio:{0}:ID={1}".FormatWith(control.GetType().FullName, control.ID);
// provide an opportunity to override this suggested default
if (getDefaultKey != null)
{
cacheKey = getDefaultKey(cacheKey);
}
}
if (VaryByUser)
{
IIdentity identity;
if (TryGetCurrentIdentity(out identity) && identity.IsAuthenticated)
{
cacheKey += ":Identity={0}".FormatWith(identity.Name);
}
}
if (!string.IsNullOrEmpty(VaryByParam))
{
foreach (string section in VaryByParam.Split(_varySeparator))
{
string param = section.Trim();
cacheKey += ":{0}={1}".FormatWith(param, context.Request[param]);
}
}
return(cacheKey);
}