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Request procesor ...

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Aurelian POPA

I want to implememt the following:

1. when a user request let's say http://mysite.com/somefolder/page ,
my handler must search for a directory called page, and then for a page
called page.aspx,
and then for a page called page.asp and finally for a page named
page.html or page.htm
(maybe even a configurable feature for specifying order of seacrh is
welcomed)

2. if my root of site is located at c:\inetpub\wwwroot, I want to be able to
dinamically
(not with virtual folders)
mount site nodes like http://mysite.com/firstnode/page to local folder
located
upper in folder tree (for example page.aspx in
c:\www\packages\firstnode)

In this way it will be possible to request http://mysite/firstnode/page
and
this handler will "transfer" constrol to the
script page.aspx in c:\www\packages\firstnode

3. a way of passing URL folders as parameters to the aspx script ...
for example let's assume that I have an exchange rates page ...
something like:
- http://mysite.com/exchange-rates.aspx?currency&#us;d&lang&#en; ;
I want to be able to request http://mysite.com/exchange-rates/en/usd/
instead of first ugly url ....

Why I want to do this?

- because regardless the technological evolution my links
will remain maintainable (in les than 5 years I moved from .htm to .asp
and now to .aspx ...)

- because, if I'll develop a module, called, let's say, ***news*** (some
aspx files grouped
in a single directory - c:\www\news), and my site have to sections
(http://mysite.com/first-dept and http://mysite.com/second-dept),
I want to be able to "mount" this module to both site sections;
of course there be a logic in the code which will present apropiate news
for each department ...
and both sites will have their own news corner :
(http://mysite.com/first-dept/news and http://mysite.com/second-dept/news)

If anyone know that this is possible with ASP.NET's httphandler,
please send me some url's or some proof-of-concept examples ...

Thanks,
Aurelian POPA

PS. I know that this is possible with ISAPI filters and/or extensions ...
but I hate C++ ...

Reply to this message...

Mitch Denny (VIP)

Aurelian,

1.    No need to do any development here. This is really a matter
    of tweaking an IIS setting to change the default documents,
    open up the properties for the web-site in the Internet
    Information Services MMC Snap-in; its under the Documents tab.

2.    I'm not sure how you would do these cleanly, my recommendation
    would be once again to avoid using handlers and just mount those
    directories physically under the root. Why add the complexity?

3.    You can do this using the Redirect(...) method on the Response
    object that is intrinsic to the Page class. Just place the page
    in your simple path and have it call that method.

The development methodology of .NET is slightly different than
working with Classic ASP. We aren't so much creating sites now
as we are creating applications. This mean we need to (hopefully)
do a little bit more design. Given your requirements, I am sure
a design could be built that causes no impact to your users.

Hope this helps.

----------------------------------------
- Mitch Denny
- http://www.warbyte.com
- Click here to reveal e-mail address
- +61 (414) 610-141
-

-----Original Message-----
From: Aurelian POPA [mailto:Click here to reveal e-mail address]
Sent: Wednesday, 1 August 2001 8:20 PM
To: aspnghttphandlers
Subject: [aspnghttphandlers] Request procesor ...
Importance: High

I want to implememt the following:
1. when a user request let's say http://mysite.com/somefolder/page ,
my handler must search for a directory called page, and then for a
page called page.aspx,
and then for a page called page.asp and finally for a page named
page.html or page.htm
(maybe even a configurable feature for specifying order of seacrh is
welcomed)
2. if my root of site is located at c:\inetpub\wwwroot, I want to be
able to dinamically
(not with virtual folders)
mount site nodes like http://mysite.com/firstnode/page to local
folder located
upper in folder tree (for example page.aspx in
c:\www\packages\firstnode)

In this way it will be possible to request
http://mysite/firstnode/page and
this handler will "transfer" constrol to the
script page.aspx in c:\www\packages\firstnode
3. a way of passing URL folders as parameters to the aspx script ...
for example let's assume that I have an exchange rates page ...
something like:
- http://mysite.com/exchange-rates.aspx?currency=usd&lang=en ;
I want to be able to request http://mysite.com/exchange-rates/en/usd/

instead of first ugly url ....
Why I want to do this?
- because regardless the technological evolution my links
will remain maintainable (in les than 5 years I moved from .htm to
.asp and now to .aspx ...)
- because, if I'll develop a module, called, let's say, ***news*** (some
aspx files grouped
in a single directory - c:\www\news), and my site have to sections
(http://mysite.com/first-dept and http://mysite.com/second-dept),
I want to be able to "mount" this module to both site sections;
of course there be a logic in the code which will present apropiate
news
for each department ...
and both sites will have their own news corner :
(http://mysite.com/first-dept/news and
http://mysite.com/second-dept/news)
If anyone know that this is possible with ASP.NET's httphandler,
please send me some url's or some proof-of-concept examples ...
Thanks,
Aurelian POPA
PS. I know that this is possible with ISAPI filters and/or extensions
...
but I hate C++ ...
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Reply to this message...

Peixin Han

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Reply to this message...

Aurelian POPA

Hi Peixin,

many thanks...

what if this page is let's say "c:\www\page.aspx"
(I mean outside of my actual website - c:\inetpub\wwwroot)?
Is there a method like RewriteMappedPath or something ..?

Application_BeginRequest is not documented in beta2
can tell me other events .....?
Where can I find updated documentation?

Thanks ...

-----Original Message-----
From: Peixin Han [mailto:Click here to reveal e-mail address]
Sent: Wednesday, August 01, 2001 11:22 PM
To: aspnghttphandlers
Subject: [aspnghttphandlers] RE: Request procesor ...

Hi, Aurelian,

There are several ways to do that. You can use HttpContext.RewritePath or
implement the httphandler by yourself.

You can define Application_BeginRequest in your global.asax file, and use
HttpContext.RewritePath to transfer the request to another page. For
example, in order to resolve your question 3, you can

<script runat=server>

public void Application_BeginRequest() {

String p = Request.FilePath;

//Parser the URL, get en and usd

&#E2;P&#A6;..

//Generate a new URL passing en and usd as querystring

p = &#E2;P C;/exchange-rates.aspx?currency=&#E2;P D; + usd + &#E2;P C;&language=&#E2;P D; + en;

//Pass the new URL to Context.RewritePath. The execution will be
transfer to the new aspx page.

Context.RewritePath(p);

}

</script>

In order to call an asp page or html page, you can use
Context.Response.Redirect in Application_BeginRequest.

You can also implement this using httphandler. Here is an example.

public class abc : IHttpHandler

{

public virtual void ProcessRequest(HttpContext context)

{

if (page.aspx exist)

context.Response.Redirect("http://localhost/page/page.aspx";);

else &#E2;P&#A6;.

}

public virtual bool IsReusable

{

get { return true; }

}

}

Thanks,

-Peixin

-----Original Message-----
From: Aurelian POPA [mailto:Click here to reveal e-mail address]
Sent: Wednesday, August 01, 2001 03:20
To: aspnghttphandlers
Subject: [aspnghttphandlers] Request procesor ...
Importance: High

I want to implememt the following:

1. when a user request let's say http://mysite.com/somefolder/page
<http://mysite.com/somefolder/page> ,
my handler must search for a directory called page, and then for a page
called page.aspx,
and then for a page called page.asp and finally for a page named
page.html or page.htm
(maybe even a configurable feature for specifying order of seacrh is
welcomed)

2. if my root of site is located at c:\inetpub\wwwroot, I want to be able to
dinamically
(not with virtual folders)
mount site nodes like http://mysite.com/firstnode/page
<http://mysite.com/firstnode/page> to local folder located
upper in folder tree (for example page.aspx in
c:\www\packages\firstnode)

In this way it will be possible to request http://mysite/firstnode/page
<http://mysite/firstnode/page> and
this handler will "transfer" constrol to the
script page.aspx in c:\www\packages\firstnode

3. a way of passing URL folders as parameters to the aspx script ...
for example let's assume that I have an exchange rates page ...
something like:
- http://mysite.com/exchange-rates.aspx?currency=usd&" target="_blank">http://mysite.com/exchange-rates.aspx?currency=usd&#E2;C;&#A9;=en
<http://mysite.com/exchange-rates.aspx?currency=usd<=en> ;
I want to be able to request http://mysite.com/exchange-rates/en/usd/
<http://mysite.com/exchange-rates/en/usd/>
instead of first ugly url ....

Why I want to do this?

- because regardless the technological evolution my links
will remain maintainable (in les than 5 years I moved from .htm to .asp
and now to .aspx ...)

- because, if I'll develop a module, called, let's say, ***news*** (some
aspx files grouped
in a single directory - c:\www\news), and my site have to sections
( http://mysite.com/first-dept <http://mysite.com/first-dept> and
http://mysite.com/second-dept <http://mysite.com/second-dept> ),
I want to be able to "mount" this module to both site sections;
of course there be a logic in the code which will present apropiate news
for each department ...
and both sites will have their own news corner :
( http://mysite.com/first-dept/news <http://mysite.com/first-dept/news>
and http://mysite.com/second-dept/news <http://mysite.com/second-dept/news>
)

If anyone know that this is possible with ASP.NET's httphandler,
please send me some url's or some proof-of-concept examples ...

Thanks,
Aurelian POPA

PS. I know that this is possible with ISAPI filters and/or extensions ...
but I hate C++ ...

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Reply to this message...

Aurelian POPA

And another trouble is that It's ok for url's like /aaa/test.aspx
but it gives me a 404 Not found for aaa/test .... (req 1)
    -----Original Message-----
    From: Peixin Han [mailto:Click here to reveal e-mail address]
    Sent: Wednesday, August 01, 2001 11:22 PM
    To: aspnghttphandlers
    Subject: [aspnghttphandlers] RE: Request procesor ...

    Hi, Aurelian,
    There are several ways to do that. You can use
HttpContext.RewritePath or implement the httphandler by yourself.
    You can define Application_BeginRequest in your global.asax file,
and use HttpContext.RewritePath to transfer the request to another page. For
example, in order to resolve your question 3, you can
    <script runat=server>
    public void Application_BeginRequest() {
    String p = Request.FilePath;
    //Parser the URL, get en and usd
    &#E2;P&#A6;..
    //Generate a new URL passing en and usd as querystring
    p = &#E2;P C;/exchange-rates.aspx?currency=&#E2;P D; + usd + &#E2;P C;&language=&#E2;P D; + en;
    //Pass the new URL to Context.RewritePath. The execution will be
transfer to the new aspx page.
    Context.RewritePath(p);
    }
    </script>
    In order to call an asp page or html page, you can use
Context.Response.Redirect in Application_BeginRequest.
    You can also implement this using httphandler. Here is an example.
    public class abc : IHttpHandler
    {
    public virtual void ProcessRequest(HttpContext context)
    {
    if (page.aspx exist)
    context.Response.Redirect("http://localhost/page/page.aspx";);
    else &#E2;P&#A6;.
    }
    public virtual bool IsReusable
    {
    get { return true; }
    }
    }
    Thanks,
    -Peixin
    -----Original Message-----
    From: Aurelian POPA [mailto:Click here to reveal e-mail address]
    Sent: Wednesday, August 01, 2001 03:20
    To: aspnghttphandlers
    Subject: [aspnghttphandlers] Request procesor ...
    Importance: High
    I want to implememt the following:
    1. when a user request let's say <http://mysite.com/somefolder/page>
,
    my handler must search for a directory called page, and then for a
page called page.aspx,
    and then for a page called page.asp and finally for a page named
page.html or page.htm
    (maybe even a configurable feature for specifying order of seacrh is
welcomed)
    2. if my root of site is located at c:\inetpub\wwwroot, I want to be
able to dinamically
    (not with virtual folders)
    mount site nodes like <http://mysite.com/firstnode/page> to local
folder located
    upper in folder tree (for example page.aspx in
c:\www\packages\firstnode)

    In this way it will be possible to request
<http://mysite/firstnode/page> and
    this handler will "transfer" constrol to the
    script page.aspx in c:\www\packages\firstnode
    3. a way of passing URL folders as parameters to the aspx script ...

    for example let's assume that I have an exchange rates page ...
    something like:
    - <http://mysite.com/exchange-rates.aspx?currency=usd<=en> ;
    I want to be able to request
<http://mysite.com/exchange-rates/en/usd/>
    instead of first ugly url ....
    Why I want to do this?
    - because regardless the technological evolution my links
    will remain maintainable (in les than 5 years I moved from .htm to
.asp and now to .aspx ...)
    - because, if I'll develop a module, called, let's say, ***news***
(some aspx files grouped
    in a single directory - c:\www\news), and my site have to sections
    (<http://mysite.com/first-dept> and
<http://mysite.com/second-dept>),
    I want to be able to "mount" this module to both site sections;
    of course there be a logic in the code which will present apropiate
news
    for each department ...
    and both sites will have their own news corner :
    (<http://mysite.com/first-dept/news> and
<http://mysite.com/second-dept/news>)
    If anyone know that this is possible with ASP.NET's httphandler,
    please send me some url's or some proof-of-concept examples ...
    Thanks,
    Aurelian POPA
    PS. I know that this is possible with ISAPI filters and/or
extensions ...
    but I hate C++ ...
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	System.Runtime.Remoting.Contexts.Context
	System.Web.HttpContext
	System.Web.IHttpHandler

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