/// <summary>
/// This is where we hijack the resizing process, interrupt it, and send
/// back the JSON data we created.
/// </summary>
/// <param name="sender"></param>
/// <param name="context"></param>
/// <param name="e"></param>
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
if (!this.IsDiagnosticRequest(e.RewrittenQuerystring))
{
return;
}
AlternateResponseException.InjectExceptionHandler(e as ImageResizer.Caching.ResponseArgs);
}
/* http://developer.yahoo.com/performance/rules.html
* http://24x7aspnet.blogspot.com/2009/06/using-cache-methods-httpcacheability-in.html
*
* Redirects should have caching headers.
* Expires: is good
* Remove ETags, bad server implementation
*/
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
int mins = c.get("clientcache.minutes", -1);
//Set the expires value if present
if (mins > 0)
{
e.ResponseHeaders.Expires = DateTime.UtcNow.AddMinutes(mins);
// Hieu Le: Apr-16-2014:
// Set MaxAge
e.ResponseHeaders.MaxAge = new TimeSpan(0, 0, mins, 0);
}
//NDJ Jan-16-2013. The last modified date sent in the headers should NOT match the source modified date when using DiskCaching.
//Setting this will prevent 304s from being sent properly.
// (Moved to NoCache)
//Authenticated requests only allow caching on the client.
//Anonymous requests get caching on the server, proxy and client
if (context.Request.IsAuthenticated)
{
e.ResponseHeaders.CacheControl = System.Web.HttpCacheability.Private;
}
else
{
e.ResponseHeaders.CacheControl = System.Web.HttpCacheability.Public;
}
}
/// <summary>
/// This is where we hijack the resizing process, interrupt it, and send back the json data we created.
/// </summary>
/// <param name="sender"></param>
/// <param name="context"></param>
/// <param name="e"></param>
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
bool detect = NameValueCollectionExtensions.Get(e.RewrittenQuerystring, "f.detect", false);
bool getlayout = NameValueCollectionExtensions.Get(e.RewrittenQuerystring, "f.getlayout", false);
if (!detect && !getlayout)
{
return;
}
DetectionResponse <Face> .InjectExceptionHandler(e as ResponseArgs);
}
private static void OnPreHandleImage(IHttpModule sender, HttpContext context, Caching.IResponseArgs e)
{
ServiceLocator.Current.GetInstance <ICacheHelper>().SetCacheHeaders(context, GetLastModifiedFromRequestKey(e.RequestKey), "ImageResizer");
}
/// <summary>
/// This is where we hijack the resizing process, interrupt it, and send back the json data we created.
/// </summary>
/// <param name="sender"></param>
/// <param name="context"></param>
/// <param name="e"></param>
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
if (NameValueCollectionExtensions.Get(e.RewrittenQuerystring, "r.detecteyes", false) ||
NameValueCollectionExtensions.Get(e.RewrittenQuerystring, "r.getlayout", false))
{
DetectionResponse <ObjRect> .InjectExceptionHandler(e as ResponseArgs);
}
}
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
string info = e.RewrittenQuerystring["getinfo"];
if (string.IsNullOrEmpty(info))
{
return;
}
ResponseArgs ra = e as ResponseArgs;
e.ResponseHeaders.ContentType = "application/json; charset=utf-8";
NameValueCollection d = new NameValueCollection();
ra.ResizeImageToStream = new ResizeImageDelegate(delegate(Stream s) {
try {
using (Stream src = ra.GetSourceImage()) {
bool attemptFastMode = src.CanSeek;
long orig = attemptFastMode ? src.Position : 0;
bool trySlowMode = !attemptFastMode;
if (attemptFastMode)
{
try {
using (Image i = System.Drawing.Image.FromStream(src, false, false)) {
d["width"] = i.Width.ToString();
d["height"] = i.Height.ToString();
}
} catch {
trySlowMode = true;
}
}
if (trySlowMode)
{
if (attemptFastMode)
{
src.Seek(orig, SeekOrigin.Begin);
}
using (Bitmap b = c.CurrentImageBuilder.LoadImage(src, new ResizeSettings(ra.RewrittenQuerystring))){
d["width"] = b.Width.ToString();
d["height"] = b.Height.ToString();
}
}
SimpleJson(s, d, e.RewrittenQuerystring["jsonp"]);
}
} catch (FileNotFoundException) {
d["result"] = "404";
SimpleJson(s, d, e.RewrittenQuerystring["jsonp"]);
}
});
}
/// <summary>
/// This is where we hijack the resizing process, interrupt it, and send back the json data we created.
/// </summary>
/// <param name="sender"></param>
/// <param name="context"></param>
/// <param name="e"></param>
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
if (e.RewrittenQuerystring.Get("resizer.debug", DebugType.None) != DebugType.None)
{
InjectRequestMod(e as ResponseArgs);
if (!Diagnostic.AllowResponse(context, this.c))
{
throw GetResponseException(Diagnostic.DisabledNotice(c));
}
}
}
static void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
if (!Config.Current.Plugins.Has <Trial>())
{
new Trial().Install(Config.Current);
}
}
