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Handling POST redirects in output cache

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This commit is contained in:
Sebastien Ros 2014-05-02 09:23:11 -07:00
parent ee16100a6c
commit 59c302ac0a
1 changed files with 21 additions and 5 deletions
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26
src/Orchard.Web/Modules/Orchard.OutputCache/Filters/OutputCacheFilter.cs
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@ -314,14 +314,30 @@ namespace Orchard.OutputCache.Filters {
_filter = null;
if (_previousFilter != null) {
response.Filter = _previousFilter;
}
}
// if the result of a POST is a Redirect, remove any Cache Item for this url
// so that the redirected client gets a fresh result
// i.e., Comment creation
if (filterContext.HttpContext.Request.HttpMethod.Equals("POST", StringComparison.OrdinalIgnoreCase) &&
!String.IsNullOrWhiteSpace(filterContext.HttpContext.Response.RedirectLocation)) {
var url = filterContext.HttpContext.Response.RedirectLocation;
if (!VirtualPathUtility.IsAbsolute(url)) {
var applicationRoot = new UrlHelper(filterContext.HttpContext.Request.RequestContext).MakeAbsolute("/");
if (url.StartsWith(applicationRoot, StringComparison.OrdinalIgnoreCase)) {
url = url.Substring(applicationRoot.Length);
}
}
var redirectionInvariantCacheKey = ComputeCacheKey(_shellSettings.Name, url, () => _workContext.CurrentCulture, _themeManager.GetRequestTheme(filterContext.RequestContext).Id, null);
_cacheService.RemoveByTag(redirectionInvariantCacheKey);
}
return;
}
// if the result of a POST is a Redirect, remove any Cache Item for this url
// so that the redirected client gets a fresh result
// also add a random token to the query string so that public cachers (IIS, proxies, ...) don't return cached content
// i.e., Comment creation
// ignore in admin
if (AdminFilter.IsApplied(new RequestContext(filterContext.HttpContext, new RouteData()))) {