Re: A simple client/server problem

[Dan Timis]

On Saturday, July 31, 2004, at 07:01 PM, Randal L. Schwartz wrote:
"Dan" == Dan Timis <[EMAIL PROTECTED]> writes:
Dan> I should have been more clear about what I meant by "simple."  I 
have
Dan> 100+ clients that need to run this script, and I cannot install 
any
Dan> kind of significant Perl modules on them.

See PAR, then.
Thanks.  Looks great.
Dan
"Cannot install" is not a valid excuse.
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Re: A simple client/server problem

[Randal L. Schwartz]

> "Dan" == Dan Timis <[EMAIL PROTECTED]> writes:

Dan> I should have been more clear about what I meant by "simple."  I have
Dan> 100+ clients that need to run this script, and I cannot install any
Dan> kind of significant Perl modules on them.

See PAR, then.

"Cannot install" is not a valid excuse.

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<[EMAIL PROTECTED]> http://www.stonehenge.com/merlyn/>
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Re: A simple client/server problem

[Dan Timis]

Thanks Bob,
I looked at LWP and it looks great.  I will keep it in mind for other 
applications.

I should have been more clear about what I meant by "simple."  I have 
100+ clients that need to run this script, and I cannot install any 
kind of significant Perl modules on them.

I found a file called geturl11.pl 
(http://www.jmarshall.com/easy/http/geturl11.pl.txt) that is pretty 
much self contained (it uses Socket, but that's already installed).  
"geturl11.pl" opens a socket, builds the HTTP request, parses the reply 
and saves the data to a file.  All I had to do is add "Content-length:" 
and the contents of my "request.xml" file to GET.

Thanks,
Dan Timis
Muse Research, Inc.
On Friday, July 30, 2004, at 05:26 AM, Bob Showalter wrote:
Dan Timis wrote:
Hi everyone,
I am very new to Perl.  I need two perl scripts, one would run on a
client, the
other would run on a server.
...
I think I can also handle most of the client side.  What I don't know
how to do
is open a two way connection with the server.  Do I do something like
this:
 open CONNECTION "http://www.myserver.com/cgi-bin/generate-reply";
Where can I find some example code?
Use the LWP family of modules for this. It's designed for creating HTTP
clients (and servers, for that matter).
   http://search.cpan.org/~gaas/libwww-perl-5.800/


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RE: A simple client/server problem

[NYIMI Jose (BMB)]

> -Original Message-
> From: Dan Timis [mailto:[EMAIL PROTECTED] 
> Sent: Friday, July 30, 2004 7:47 AM
> To: [EMAIL PROTECTED]
> Subject: A simple client/server problem
> 
> 
> Hi everyone,
> 
> I am very new to Perl.  I need two perl scripts, one would run on a 
> client, the
> other would run on a server.
> 
> The perl script on the client machine runs an application.  The 
> application
> creates a file called "request.xml"  The perl script reads the file, 
> and sends
> it to the server.
> 
> A cgi script on the server reads the file and saves it as 
> "request.xml" 
> then
> runs another application.  The application reads "request.xml" and 
> creates
> "reply.xml".  The server perl script reads "reply.xml" and sends it 
> back to the
> client.
> 
> The client reads the data from the server and saves it as "reply.xml"
> 
> I looked all over for some example code.  I found lots of examples 
> about how to
> upload a file to the server, but they are all about the server part, 
> and how to
> generate html that would let a user choose a file to upload.  I could 
> not find
> anything about how a client would connect to a server, send 
> some data, 
> and then
> read some data back.
...
...

> I think I can also handle most of the client side.  What I don't know 
> how to do
> is open a two way connection with the server.  Do I do something like 
> this:
> 
>  open CONNECTION "http://www.myserver.com/cgi-bin/generate-reply";
> 
> Where can I find some example code?

You may need XMLRPC.
http://www.xmlrpc.com
http://xmlrpc-c.sourceforge.net/xmlrpc-howto/xmlrpc-howto-perl-client.html
http://xmlrpc-c.sourceforge.net/xmlrpc-howto/xmlrpc-howto-perl-cgi.html

A Perl Client (not tested !)
The following program shows how to call an XML-RPC server from Perl:

use strict;
use warnings;
use Frontier::Client;

# Make an object to represent the XML-RPC server.
my $server_url = 'http://www.myserver.com/cgi-bin/generate-reply.pl';
my $server_obj = Frontier::Client->new(url => $server_url);

# Call the remote server and get our result.
my $request_data = subroutine_to_get_your_request_xml_data();
my $result_obj = $server_obj->call('in', $request_data);
my $reply_data = $result_obj->{'out'};
#the rest ...

Hope that gives you some new ideas ...

José.


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RE: A simple client/server problem

[Bob Showalter]

Dan Timis wrote:
> Hi everyone,
> 
> I am very new to Perl.  I need two perl scripts, one would run on a
> client, the
> other would run on a server.
> ...
> I think I can also handle most of the client side.  What I don't know
> how to do
> is open a two way connection with the server.  Do I do something like
> this:
> 
>  open CONNECTION "http://www.myserver.com/cgi-bin/generate-reply";
> 
> Where can I find some example code?

Use the LWP family of modules for this. It's designed for creating HTTP
clients (and servers, for that matter).

   http://search.cpan.org/~gaas/libwww-perl-5.800/

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