ASP Page to capture AJAX XML post data

[Rich Halliwell]

I have a script that catches javascript errors and sends them through ajax to a specified file through the POST proticol. I want to write an ASP file which can read this xml file and act on its response. I have a CGI/PERL equivalent but i'm not sure how to read the xml file in asp neatly:

use CGI;
use CGI::Carp qw(set_progname);
use XML::Simple;
my $request = CGI->new();

my $method = $request->request_method();
# method must be POST
if ($method eq 'POST') {
eval {
my $content_type = $request->content_type();
if ($content_type eq 'text/xml') {
print $request->header(-status =>
'415 Unsupported Media Type', -type => 'text/xml');
croak "Invalid content type: $content_type\n";
}
# when method is POST and the content type is neither
# URI encoded nor multipart form, the entire post
# is stuffed into one param: POSTDATA
my $error_xml = $request->param('POSTDATA');
my $ref = XML::Simple::XMLin($error_xml);
my ($name, $msg, $location) =
($ref->{'name'}, $ref->{'message'}, '');
$location = $ref->{'location'} if (defined($ref->{'location'}));
# this will change the name of the carper in the log
set_progname('Client-side error');
my $remote_host = $request->remote_host();
carp "name: [$name], msg: [$msg], location: [$location]";
};
if ($@) {
print $request->header(-status => '500 Internal server error',
-type => 'text/xml');
croak "Error while logging: $@";
} else {
# this response code indicates that the operation was a
# success, but the client should not expect any content
print $request->header(-status => '204 No content',
-type => 'text/xml');
}
} else {
print $request->header(-status => '405 Method not supported',
-type => 'text/xml');
croak "Unsupported method: $method";
}

[nedu]

Hi,

Send the xml file which u have got. I will give you the asp code . .

[Rich Halliwell]

Hi,

Send the xml file which u have got. I will give you the asp code . .

Sure - I can send my ajax code if you contact me. The bulk of it can be found here:

http://www.xml.com/pub/a/2005/05/11/ajax-error.html

with slight modifications the returned xml looks like the following:

<?xml version=1.0"?>
<error>
<name>TypeError</name>
<message>Object expected</message>
<location>http://www.somasdhkhsdaf.com, function:foo()</location></error>

the important bit of this code is that the javascript ajax reads the state change of the asp page to state 204 and realises it has been successful.

I can provide you with any extra information you need

Thanks

Rich

[nedu]

<%
Set objXML = Server.CreateObject("Microsoft.XMLDOM")
Set objLst = Server.CreateObject("Microsoft.XMLDOM")
objXML.async = False
objXML.Load (Server.MapPath("filename.xml"))
If objXML.parseError.errorCode <> 0 Then
handle the error
End If

Set objLst = objXML.getElementsByTagName("*")

For i = 0 to (objLst.length – 1)

If objLst.item(i).nodeName = "error" Then
StrERR = objLst.item(i).text
Handle the Error here . . .

'Exit For
End If

Next
%>


Does thisa code help u . . . If u have any doubts mail me at [e-mail] . .

Thanks & regards

(M. Nedu . .)

[Rich Halliwell]

Hi,

That isn’t quite the problem. First the asp page isn’t reading the xml file form the server – it has to get it from the request of the page. Second it is the return of the page which is causing issues. I can capture the xml crudely using the following:

<%@LANGUAGE="VBSCRIPT"%>
<%
Response.ContentType = "text/xml"

set oXML = Server.CreateObject("Msxml2.DOMDocument")
oXML.setProperty "ServerHTTPRequest", True
oXML.async = False
oXML.load(Request)
Response.Status = "204 No Content"

Response.End


%>

But that doesn’t feedback successful to the ajax correctly

Thanks
Rich Halliwell