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== link:index.html[Index] -> link:cookbook.html[Cookbook]
Cookbook: Setting up ASP.NET
----------------------------
To run ASP.NET applications with Cherokee, you will need to install
link:http://www.mono-project.com/[Mono]. The Mono Project is a UNIX
version of the Microsoft .NET development platform aimed at enabling
UNIX developers to build and deploy cross-platform .NET Applications.
You will specifically need to run the _mono-fastcgi-server_, since
that is the backend needed to set up Cherokee with the FastCGI handler
to parse and compile aspx code.
You have several options available to obtain this.
If you are lucky enough, it will already be available in your favorite
platform.
On Debian Lenny and Sid, and on Ubuntu 8.10+ (Intrepid and Jaunty) you
can simply leave to APT the trouble of setting up the dependencies by
typing:
----
# apt-get install mono-fastcgi-server2
----
The official supported packages can be found at
link:http://www.go-mono.com/mono-downloads/download.html[the download
site]. If your flavor is not there, for Linux you can either:
* Download the binary installer, which is the
link:http://ftp.novell.com/pub/mono/archive/1.9.1/linux-installer/2/mono-1.9.1_2-installer.bin[release
1.9.1] at the time of writing,
* Download and compile the sources, available at the
link:http://ftp.novell.com/pub/mono/sources-stable/[sources page]. The
fastcgi-server is provided by the
link:http://ftp.novell.com/pub/mono/sources/xsp/xsp-2.0.tar.bz2[XSP] package.
You can find all sorts of information about the configuration of Mono
at the link:http://www.mono-project.com/[Mono Project] web site.
Once you have a FastCGI Mono backend available, we can proceed with
the recipe.
Since a Mono Wizard is shipped with Cherokee, the configuration is as
simple as clicking on the Wizard, located under the `Languages`
category, and filling up a few required fields. Your application
should be up and running. The rest of this document simply details the
the recipe that is emulated by the Wizard. If you have any trouble
with it, these steps could provide some insight on the reason of the
failure to function properly.
.Preparations
. Define an link:config_info_sources.html[information source] that
spawns the _fastcgi-mono-server_. In our example we will be binding
it to the local interface, port 8080, with our application located
in `/var/www`, which is our document root. It will be mapped to `/`
by the FastCGI Mono Server. To do this, we will create a source
called _mono_, and we will set up the interpreter as:
+
----
fastcgi-mono-server2 --socket=tcp:8080 --address=127.0.0.1 --applications=/:/var/www
----
+
Of course you could also define the parameters through environment
variables, and simply launch the interpreter as:
+
----
fastcgi-mono-server2
----
+
Lets assume we wanted to do so and also wished to use it through a
Unix socket instead of through a host:port combination. You would have
to define at least the following variables:
+
----
MONO_FCGI_APPLICATIONS=/:/var/www
MONO_FCGI_SOCKET=unix
MONO_FCGI_FILENAME=/tmp/cherokee-mono.socket
----
+
Make sure to set up a relatively high spawning timeout, because it can
take its time and you don't want Cherokee giving up before the process
is spawned. A value of 30 seconds should suffice. Obviously this value
is way too high to serve contents when the FastCGI Mono backend has
not been spawned. It is only meant to be used a security
measure. Spawning the process before putting the server into
production is highly recommended.
. Map your information source to a rule that handles your Mono
application. This can be done by setting up the rule for extensions
or paths.
- The first alternative is easily achievable by passing the 11
standard extensions to the FastCGI Mono Server, defining a rule
that uses the information source we just mentioned and applies to
the extensions: `aspx, asmx, ashx, asax, ascx, soap, rem, axd, cs,
config, dll`. However, this is not the option recommended by the
Mono Project since some undesired side effects are obtained, such
as exposed files and missing features.
- The second alternative overcomes this by sending all requests
directly to the FastCGI Mono Server, but it comes at the cost of a
performance decrease. It is the recommended option.
So, lets get started. The recipe will configure the FastCGI handler
using paths, deleting all but the `Default` rule from our Cherokee
configuration.
.Steps
. First, access your virtual server configuration and go to the
`Basics` tab. Add `index.aspx,default.aspx` to the list of
`Directory Indexes`.
. Then, delete every erasable rule. The only remaining one should be
the `Default` one.
. Edit the rule, go to the `Handler` tab and select the FastCGI
handler. Assign it the _mono_ information source. As always, you can
set up as many hosts as desired and Cherokee will balance the load
among them. If you want to take the alternative path of configuring
Mono through extensions instead of paths, simply define a rule that
applies to the 11 extensions mentioned above. The handler
configuration is completely identical. Either way, make sure the
`Check file` option of the handler is enabled. This is very
important. If it is not, FastCGI will not work and you will receive
an _500 Internal Server Error_.
.FastCGI handler
image::media/images/cookbook_mono_handler.png[FastCGI handler options]
And that is all. Once you upload your ASP.NET application to
_/var/www_ and launch Cherokee, you should be able to access your
application by pointing your web browser to, lets say
`http://example.net/`.
For this recipe, the package asp.net2-examples (provided by Debian and
Ubuntu thanks to some APT magic) was used. If you were to copy the
examples to `/var/www` as final step of this tutorial, you should see that Mono is working.
.Demo in action
image::media/images/cookbook_mono_demo.png[Mono Demo]
When the package is installed, the examples will be placed in
`/usr/share/asp.net2-demos`. Copy those to `/var/www` and you are ready
to make the test.
Alternatively you can avoid copying any files and simply spawn the
FastCGI Mono Server with the real path of the examples, like this:
----
fastcgi-mono-server2 --socket=tcp:8080 --address=127.0.0.1 --applications=/:/usr/share/asp.net2-demos
----
In case you can't find the mentioned examples, you could always copy
the following program to `/var/www/index.aspx` just to make sure your
Mono setup is working.
----
<%@ Page Language="C#" Debug="true" %>
<html>
<body>
<h1>Hello World!!!</h1>
<%
// This block will execute in the Render_Control method
Response.Write("Check out the family tree: <br> <br>");
Response.Write(this.GetType().ToString());
Response.Write(" which derives from: <br> ");
Response.Write(this.GetType().BaseType.ToString());
Response.Write(" which derives from: <br> ");
Response.Write(this.GetType().BaseType.BaseType.ToString());
Response.Write(" which derives from: <br> ");
Response.Write(
this.GetType().BaseType.BaseType.BaseType.ToString());
Response.Write(" which derives from: <br> ");
Response.Write(
this.GetType().BaseType.BaseType.BaseType.BaseType.ToString());
%>
</body>
</html>
----
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