Home / Community & Support / Developer Productivity Tools Forums / Telerik MVC Extensions (superseded) > General Discussions > Assets support on Mono

• Igor Intermediate

  Posted on Oct 11, 2011 (permalink)

  Hi
  
  I working with Telerik MVC on Mono 2.10, Apache 2 and it works well, except one thing
  
  In my code on Site.Master i have the following fragment for content registration:
  

  <%= Html.Telerik().StyleSheetRegistrar()

          .DefaultGroup(group => group

          .Add("telerik.common.css")

          .Add("telerik.black.css")

          .Combined(true)

          .Compress(true)) %>

  and same code for ScriptRegistrar:
  
  

  <% Html.Telerik()

  .ScriptRegistrar().Globalization(true)

  .Combine(true)

  .Compresss(true)

  .Render(); %>

  
  
  in the web.config file i have all handlers inserted:
  
  

  <httpHandlers>

  ...

  <add verb="GET,HEAD" path="asset.axd" validate="false" type="Telerik.Web.Mvc.WebAssetHttpHandler, Telerik.Web.Mvc" />

   

  ...

  </httpHandlers>

   

  ....

     <system.webServer>
      
      <validation validateIntegratedModeConfiguration="false" />
  ......

   <handlers>

        <add name="asset" preCondition="integratedMode" verb="GET,HEAD" path="asset.axd" type="Telerik.Web.Mvc.WebAssetHttpHandler, Telerik.Web.Mvc" />

  
  
  But when opening webpage i have 404 server error on the .axd resource that Telerik http handler uses for compress CSS and JS content, and browser cannot load content to show page properly. Same issue can be reproduced on Apache 2 server and XSP 4 as well.
  
  When disabling combine and compress - everything works well.
  
  

  .Combined(false)

  .Compress(false))

  
  The page content loads with no issues.
  When using .NET runtime instead - i have no such issues at all.
  
  Could you please give me some advices, how to make these handlers to work with Mono?
  Thanks!

  Reply

• Answer Atanas Korchev Atanas Korchev

  Posted on Oct 12, 2011 (permalink)

  Hello Igor,

   It sees that for some reason the HTTP handler registration does not work in Mono or just requires some extra steps. I found the following resources which may be helpful:
  
  http://mono.1490590.n4.nabble.com/HttpHandler-to-handle-all-kinds-of-URL-s-in-Mono-Apache-in-order-to-build-a-REST-service-td1752753.html
  
  http://stackoverflow.com/questions/2569703/httphandler-to-handle-all-kinds-of-urls-in-mono-apache-xsp-in-order-to-build-a-r
  
  http://lists.ximian.com/pipermail/mono-list/2005-June/027551.html
  
  

  I hope this helps,
  Atanas Korchev
  the Telerik team

  If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the Telerik Extensions for ASP.MET MVC, subscribe to their blog feed now

  Reply

• Igor Intermediate

  Posted on Oct 12, 2011 (permalink)

  Thank you for answering, i found the things that were missed in my Mono configuration: 
  
  mod_mono.conf:
  
  

  AddType application/x-asp-net .axd

  SetHandler mono

  
  but unfortunately i did not get it working yet with compression and combine (even with XSP 4 web server).
  i am looking for solution and will let you know if i found one.
  
  the workaround now is to disable compression and combine for CSS and scripts.

  Reply

• Kevin

  Posted on Jan 7, 2012 (permalink)

  Hello Igor, 
  
  Did you find any solution in order to have Asset working with Mono ?
  
  Thank you for your awnser
  

  Reply

• Igor Intermediate

  Posted on Mar 4, 2012 (permalink)

  Hi!
  
  Unfortunately i didnt yet
  I disabled all assets to work with Mono
  

  Reply

• Igor Intermediate

  Posted on Mar 29, 2012 (permalink)

  Hi guys!
  Any progress on Mono handlers support?

  Reply

• Atanas Korchev Atanas Korchev

  Posted on Mar 30, 2012 (permalink)

  Hi,

   Do you think there is a problem with Telerik Extensions for ASP.NET MVC which prevents the HTTP handlers from working in Mono? I think there is just a configuration issue which prevents them from working. Have you tried with other HTTP handlers? Do they work as expected in your setup?

  Kind regards,
  Atanas Korchev
  the Telerik team

  If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the Telerik Extensions for ASP.MET MVC, subscribe to their blog feed now.

  Reply

• Igor Intermediate

  Posted on Mar 31, 2012 (permalink)

  hi!
  
  i have updated Telerik Extensions for MVC, Mono and mod_mono for Apache to the last versions and now everything works as expected. Not sure what the problem was exactly, but anyway now its fine!

  Reply

• Kevin

  Posted on Mar 31, 2012 (permalink)

  Hello Igor, 
  
  Thank You !!
  
  Could you please tell me what is your configuration ?
  Telerik Extensions for ASP.NET MVC Q1 2012 ?
  Mono  2.6.10 ?

  Reply

• Igor Intermediate

  Posted on Mar 31, 2012 (permalink)

  Kevin,
  i am using Q1 2012 of MVC Extensions and Mono 2.10.8
  

  Reply

• Kevin

  Posted on Apr 1, 2012 (permalink)

  Coul you send me your current configuration about Asset HttpHandler you're using ?
  
  Did you try with xsp4 server ?

  Reply

• Igor Intermediate

  Posted on Apr 8, 2012 (permalink)

  Kevin,
  i did not try xsp4 so far, only apache2.
  i am using default HttpHandler registration from Telerik MVC Website template's web.config 
  

  Reply

• Kevin

  Posted on May 26, 2012 (permalink)

  Hello Igor, 
  
  I installed mono 2.10.8 o my server and tried to activate asset combination support -> It doesn't work anyway.
  I'm also using Telerik Q1 2012 MVC extensions...
  
  
  Could you tell me if I forgot something in my configuration ?
  
  This is my Web.config handler configuration : 
  
  <httpHandlers>
        <add verb="GET,HEAD" path="asset.axd" validate="false" type="Telerik.Web.Mvc.WebAssetHttpHandler, Telerik.Web.Mvc" />
      </httpHandlers>
  

  
  

  This is an extract of my virtual host configuration : 
  <VirtualHost *:80>
          ServerAdmin webmaster@localhost
          ServerName .....
  
          MonoPath default "/usr/lib/mono/4.0"
          MonoServerPath default /usr/bin/mod-mono-server4
          AddMonoApplications default "/:/..."
  
           <location />
                  MonoSetServerAlias default
                  AddType application/x-asp-net .axd
                  SetHandler mono
                  SetOutputFilter DEFLATE
                  SetEnvIfNoCase Request_URI "\.(?:gif|jpe?g|png)$" no-gzip dont-vary
           </location>
  
          DocumentRoot /....
          <Directory /....>
                  Options Indexes FollowSymLinks MultiViews
                  AllowOverride all
                  Order allow,deny
                  allow from all
          </Directory>
  
          ErrorLog /....
  
          <IfModule mod_deflate.c>
                  AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript
          </IfModule>
  
  </VirtualHost>
  
  Thank you very much for helping me ...
  
  Kevin, 
  

  
  

  Reply

• Igor Intermediate

  Posted on May 26, 2012 (permalink)

  Kevin, your configuration seems to be ok.
  how did you install mono and mod_mono?
  do you have mod-mono-server4 , libapache-mod-mono  installed and configured ?
  and what exactly problem do you faced with - 404 or 500 server error? does the other part of the site works as expected?
  
  show here also mod_mono.conf file please

  Reply

• Kevin

  Posted on May 26, 2012 (permalink)

  Hello Igor, 
  
  I've installed  mono and mod_mono from sources (with compiling)... So all I think all needed is installed (do you agree ?).
  
  All my website works fine except for Telerik web asset -> 404 server error when I activate Telerik asset combination.
  
  Here is my mod_mono.conf : 
  
  # mod_mono.conf
  
  
  # Achtung! This file may be overwritten
  # Use 'include mod_mono.conf' from other configuration file
  # to load mod_mono module.
  
  
  <IfModule !mod_mono.c>
      LoadModule mono_module /usr/lib/apache2/modules/mod_mono.so
  </IfModule>
  
  
  <IfModule mod_headers.c>
      Header set X-Powered-By "Mono"
  </IfModule>
  
  
  AddType application/x-asp-net .aspx
  AddType application/x-asp-net .asmx
  AddType application/x-asp-net .ashx
  AddType application/x-asp-net .asax
  AddType application/x-asp-net .ascx
  AddType application/x-asp-net .soap
  AddType application/x-asp-net .rem
  AddType application/x-asp-net .axd
  AddType application/x-asp-net .cs
  AddType application/x-asp-net .vb
  AddType application/x-asp-net .master
  AddType application/x-asp-net .sitemap
  AddType application/x-asp-net .resources
  AddType application/x-asp-net .skin
  AddType application/x-asp-net .browser
  AddType application/x-asp-net .webinfo
  AddType application/x-asp-net .resx
  AddType application/x-asp-net .licx
  AddType application/x-asp-net .csproj
  AddType application/x-asp-net .vbproj
  AddType application/x-asp-net .config
  AddType application/x-asp-net .Config
  AddType application/x-asp-net .dll
  DirectoryIndex index.aspx
  DirectoryIndex Default.aspx
  DirectoryIndex default.aspx
  

  
  

  Thenk you.

  Reply

• Igor Intermediate

  Posted on May 26, 2012 (permalink)

  Kevin, have you tried to test if http handlers works with your configuration?
  Please try this example and see if it works: http://schwuk.com/articles/2005/02/25/using-httphandlers-with-mod_mono/ 
  
  If you still have 404 - i recommend to install Mono from scratch using this script (for Debian):
  

  # STEP 1 ...

   

  echo 'deb http://ftp.debian.org/debian unstable main' >>/etc/apt/sources.list

  echo 'deb http://ftp.debian.org/debian experimental main' >>/etc/apt/sources.list

   

  apt-get update

  apt-get upgrade -y --force-yes

   

  # reboot system !!

  reboot

   

  # STEP 2

   

  # we may have wrong gcc version updated...

  apt-get remove -y gcc-4.4

  apt-get install -y --force-yes gcc-4.4

   

   

   

  apt-get -y --force-yes -t unstable install libpcre3

  apt-get -y --force-yes -t experimental install libglib2.0-0 mono-devel mono-complete

   

  /etc/init.d/apache2 stop

   

  apt-get -y --force-yes -t experimental install mono-apache-server

  apt-get -y --force-yes -t experimental install libapache2-mod-mono

   

  service apache2 restart

   

  #REBOOT AGAIN

  reboot

  
  By the way.. After updating the system (and moving to debian...) i got error with Telerik MVC Extensions 2012.1.419 asset handler again. It can be reproduced with default settings on mono 2.10:
  
  when opening URL: 
  http://localhost/asset.axd?id=kQAAAB-LCAAAAAAAAANVjcEKwjAQRP9lziFtahXM1c-QntItFE1WkrUIJf_ukh7E28x7A7Njhr_veMHjxkkoCQyWxpIyoSfl9WEDx8jJhlJUM3xfzf8gkmT-eVenOhkEaZOPdIfZtA69G6yzo7sqCHp_upw1wEt-U_0CNhxLipEAAAA%3d
  
  i got 500 server error (not 404 !)
  
  

  System.NullReferenceException: Object reference not set to an instance of an object
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToObject (IDictionary`2 dict, System.Type type) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType (System.Type type, System.Object obj) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToList (System.Collections.ArrayList col, System.Type type) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType (System.Type type, System.Object obj) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToObject (IDictionary`2 dict, System.Type type) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType (System.Type type, System.Object obj) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToList (System.Collections.ArrayList col, System.Type type) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType (System.Type type, System.Object obj) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType[IEnumerable`1] (System.Object obj) [0x00000] in <filename unknown>:0 
    at Telerik.Web.Mvc.Infrastructure.Implementation.WebAssetGroupConverter.SetIfPresent[IEnumerable`1] (IDictionary`2 dictionary, System.String key, System.Action`1 setter) [0x00000] in <filename unknown>:0 
    at Telerik.Web.Mvc.Infrastructure.Implementation.WebAssetGroupConverter.Deserialize (IDictionary`2 dictionary, System.Type type, System.Web.Script.Serialization.JavaScriptSerializer serializer) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType (System.Type type, System.Object obj) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.ConvertToType[WebAssetGroup] (System.Object obj) [0x00000] in <filename unknown>:0 
    at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[WebAssetGroup] (System.String input) [0x00000] in <filename unknown>:0 
    at Telerik.Web.Mvc.Infrastructure.Implementation.WebAssetGroupSerializer.Deserialize (System.String source) [0x00000] in <filename unknown>:0 
    at Telerik.Web.Mvc.WebAssetHttpHandler.ProcessRequest (System.Web.HttpContextBase context) [0x00000] in <filename unknown>:0 
    at Telerik.Web.Mvc.Infrastructure.HttpHandlerBase.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 
    at System.Web.HttpApplication+<Pipeline>c__Iterator6.MoveNext () [0x00000] in <filename unknown>:0 
    at System.Web.HttpApplication.Tick () [0x00000] in <filename unknown>:0 

  
  Anyway it used to work normally on Ubuntu server before...
  
  I suspect the problem is related to the JavaScriptSerializer implementation in Mono, so i recommend few things:
  

  • turn off asset.axd
  • configure mod_mono using this tool: http://www.go-mono.com/config-mod-mono/ 
  • enable mod_deflate, so apache itself will compress the content

  Reply

• Igor Intermediate

  Posted on May 26, 2012 (permalink)

  I am looking forward to find any solution fixing JavaScriptSerializer issue..

  Reply

Back to Top

Home / Community & Support / Developer Productivity Tools Forums / Telerik MVC Extensions (superseded) > General Discussions > Assets support on Mono