Receiving xml problem

[Danny]

I am working on a project in which a number of client applications will be
posting xml documents as a byte array to an ASP.NET page on our web server. I
am trying to simulate the process and run into problems.

Sending code:

ASCIIEncoding encoding = new ASCIIEncoding() ;

string lcUrl = "http://localhost/test/receive.aspx";
HttpWebRequest loHttp =
(HttpWebRequest ) WebRequest.Crea te(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.Url Encode("<Data>T est Data</Data>");

loHttp.Method=" POST";
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetByt es(lcPostData);
loHttp.ContentL ength = lbPostBuffer.Le ngth;

Stream loPostData = loHttp.GetReque stStream();
loPostData.Writ e(lbPostBuffer, 0,lbPostBuffer. Length);
loPostData.Clos e();

HttpWebResponse loWebResponse = (HttpWebRespons e)
loHttp.GetRespo nse();

Encoding enc = System.Text.Enc oding.GetEncodi ng(1252);

StreamReader loResponseStrea m =
new StreamReader(lo WebResponse.Get ResponseStream( ));

string lcHtml = loResponseStrea m.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.C lose();
loResponseStrea m.Close();

Receiving code:
Stream str = Request.InputSt ream;
int strLen = (int)str.Length ;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0 ,strLen);
string strmContents = System.Text.Enc oding.ASCII.Get String(bArr,
0, bytes);
Response.Write (strmContents);
The above code will work with XMLData=xyz. But when “<� or “>� is in the
string as above, an error is returned from the receiving page:
The remote server returned an error: (500) Internal Server Error

If the following line is commented out, it works:
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";

When it works with the above line commented out, the result displayed is:
XMLData=%3cData %3eTest+Data%3c %2fData%3e

If I use:
string strXMLData = System.Text.Enc oding.ASCII.Get String(bArr);
strXMLData = HttpUtility.Url Decode(strXMLDa ta);
Response.Write (strXMLData);

The result I get is: XMLData=Test Data
I need the end result to be <Data>Test Data</Data>"

Where am I going wrong?

Thanks for any help

[John Timney \( MVP \)]

I dont have an answer for you, but theres an example here that accepts XML
data as a post submission and deserializes it in a web service.

It might help you work out an alternative. Otherwise, I think MVP John
Skeet is the byte array expert in the dotnet.general group.

--
Regards

John Timney
ASP.NET MVP
Microsoft Regional Director

"Danny" <Da***@discussi ons.microsoft.c om> wrote in message
news:E2******** *************** ***********@mic rosoft.com...

I am working on a project in which a number of client applications will be
posting xml documents as a byte array to an ASP.NET page on our web
server. I
am trying to simulate the process and run into problems.

Sending code:

ASCIIEncoding encoding = new ASCIIEncoding() ;

string lcUrl = "http://localhost/test/receive.aspx";
HttpWebRequest loHttp =
(HttpWebRequest ) WebRequest.Crea te(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.Url Encode("<Data>T est
Data</Data>");

loHttp.Method=" POST";
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetByt es(lcPostData);
loHttp.ContentL ength = lbPostBuffer.Le ngth;

Stream loPostData = loHttp.GetReque stStream();
loPostData.Writ e(lbPostBuffer, 0,lbPostBuffer. Length);
loPostData.Clos e();

HttpWebResponse loWebResponse = (HttpWebRespons e)
loHttp.GetRespo nse();

Encoding enc = System.Text.Enc oding.GetEncodi ng(1252);

StreamReader loResponseStrea m =
new StreamReader(lo WebResponse.Get ResponseStream( ));

string lcHtml = loResponseStrea m.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.C lose();
loResponseStrea m.Close();

Receiving code:
Stream str = Request.InputSt ream;
int strLen = (int)str.Length ;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0 ,strLen);
string strmContents =
System.Text.Enc oding.ASCII.Get String(bArr,
0, bytes);
Response.Write (strmContents);
The above code will work with XMLData=xyz. But when "<" or ">" is in the
string as above, an error is returned from the receiving page:
The remote server returned an error: (500) Internal Server Error

If the following line is commented out, it works:
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";

When it works with the above line commented out, the result displayed is:
XMLData=%3cData %3eTest+Data%3c %2fData%3e

If I use:
string strXMLData = System.Text.Enc oding.ASCII.Get String(bArr);
strXMLData = HttpUtility.Url Decode(strXMLDa ta);
Response.Write (strXMLData);

The result I get is: XMLData=Test Data
I need the end result to be <Data>Test Data</Data>"

Where am I going wrong?

Thanks for any help

[Danny]

Thanks John. Can you give me the link to article you suggested.

Regards
Danny

"John Timney ( MVP )" wrote:

I dont have an answer for you, but theres an example here that accepts XML
data as a post submission and deserializes it in a web service.

It might help you work out an alternative. Otherwise, I think MVP John
Skeet is the byte array expert in the dotnet.general group.

--
Regards

John Timney
ASP.NET MVP
Microsoft Regional Director

"Danny" <Da***@discussi ons.microsoft.c om> wrote in message
news:E2******** *************** ***********@mic rosoft.com...

I am working on a project in which a number of client applications will be
posting xml documents as a byte array to an ASP.NET page on our web
server. I
am trying to simulate the process and run into problems.

Sending code:

ASCIIEncoding encoding = new ASCIIEncoding() ;

string lcUrl = "http://localhost/test/receive.aspx";
HttpWebRequest loHttp =
(HttpWebRequest ) WebRequest.Crea te(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.Url Encode("<Data>T est
Data</Data>");

loHttp.Method=" POST";
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetByt es(lcPostData);
loHttp.ContentL ength = lbPostBuffer.Le ngth;

Stream loPostData = loHttp.GetReque stStream();
loPostData.Writ e(lbPostBuffer, 0,lbPostBuffer. Length);
loPostData.Clos e();

HttpWebResponse loWebResponse = (HttpWebRespons e)
loHttp.GetRespo nse();

Encoding enc = System.Text.Enc oding.GetEncodi ng(1252);

StreamReader loResponseStrea m =
new StreamReader(lo WebResponse.Get ResponseStream( ));

string lcHtml = loResponseStrea m.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.C lose();
loResponseStrea m.Close();

Receiving code:
Stream str = Request.InputSt ream;
int strLen = (int)str.Length ;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0 ,strLen);
string strmContents =
System.Text.Enc oding.ASCII.Get String(bArr,
0, bytes);
Response.Write (strmContents);
The above code will work with XMLData=xyz. But when "<" or ">" is in the
string as above, an error is returned from the receiving page:
The remote server returned an error: (500) Internal Server Error

If the following line is commented out, it works:
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";

When it works with the above line commented out, the result displayed is:
XMLData=%3cData %3eTest+Data%3c %2fData%3e

If I use:
string strXMLData = System.Text.Enc oding.ASCII.Get String(bArr);
strXMLData = HttpUtility.Url Decode(strXMLDa ta);
Response.Write (strXMLData);

The result I get is: XMLData=Test Data
I need the end result to be <Data>Test Data</Data>"

Where am I going wrong?

Thanks for any help

[Bruce Barker]

you need to turn validateRequest off for this page. by default, asp.net
throws an error if a "<" is found in the form data. this is to handle bady
coded sites that allow script injection.

-- bruce (sqlwork.com)

"Danny" <Da***@discussi ons.microsoft.c om> wrote in message
news:E2******** *************** ***********@mic rosoft.com...

I am working on a project in which a number of client applications will be
posting xml documents as a byte array to an ASP.NET page on our web
server. I
am trying to simulate the process and run into problems.

Sending code:

ASCIIEncoding encoding = new ASCIIEncoding() ;

string lcUrl = "http://localhost/test/receive.aspx";
HttpWebRequest loHttp =
(HttpWebRequest ) WebRequest.Crea te(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.Url Encode("<Data>T est
Data</Data>");

loHttp.Method=" POST";
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetByt es(lcPostData);
loHttp.ContentL ength = lbPostBuffer.Le ngth;

Stream loPostData = loHttp.GetReque stStream();
loPostData.Writ e(lbPostBuffer, 0,lbPostBuffer. Length);
loPostData.Clos e();

HttpWebResponse loWebResponse = (HttpWebRespons e)
loHttp.GetRespo nse();

Encoding enc = System.Text.Enc oding.GetEncodi ng(1252);

StreamReader loResponseStrea m =
new StreamReader(lo WebResponse.Get ResponseStream( ));

string lcHtml = loResponseStrea m.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.C lose();
loResponseStrea m.Close();

Receiving code:
Stream str = Request.InputSt ream;
int strLen = (int)str.Length ;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0 ,strLen);
string strmContents =
System.Text.Enc oding.ASCII.Get String(bArr,
0, bytes);
Response.Write (strmContents);
The above code will work with XMLData=xyz. But when "<" or ">" is in the
string as above, an error is returned from the receiving page:
The remote server returned an error: (500) Internal Server Error

If the following line is commented out, it works:
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";

When it works with the above line commented out, the result displayed is:
XMLData=%3cData %3eTest+Data%3c %2fData%3e

If I use:
string strXMLData = System.Text.Enc oding.ASCII.Get String(bArr);
strXMLData = HttpUtility.Url Decode(strXMLDa ta);
Response.Write (strXMLData);

The result I get is: XMLData=Test Data
I need the end result to be <Data>Test Data</Data>"

Where am I going wrong?

Thanks for any help

[John Timney \( MVP \)]

Sorry, heres the link, you might not need it with Bruces answer
though.......ho pe it helps.

http://www.prescod.net/rest/dotnet/

--
Regards

John Timney
ASP.NET MVP
Microsoft Regional Director

"Danny" <Da***@discussi ons.microsoft.c om> wrote in message
news:57******** *************** ***********@mic rosoft.com...

Thanks John. Can you give me the link to article you suggested.

Regards
Danny

"John Timney ( MVP )" wrote:

I dont have an answer for you, but theres an example here that accepts
XML
data as a post submission and deserializes it in a web service.

It might help you work out an alternative. Otherwise, I think MVP John
Skeet is the byte array expert in the dotnet.general group.

--
Regards

John Timney
ASP.NET MVP
Microsoft Regional Director

"Danny" <Da***@discussi ons.microsoft.c om> wrote in message
news:E2******** *************** ***********@mic rosoft.com...

>
> I am working on a project in which a number of client applications will
> be
> posting xml documents as a byte array to an ASP.NET page on our web
> server. I
> am trying to simulate the process and run into problems.
>
> Sending code:
>
> ASCIIEncoding encoding = new ASCIIEncoding() ;
>
> string lcUrl = "http://localhost/test/receive.aspx";
> HttpWebRequest loHttp =
> (HttpWebRequest ) WebRequest.Crea te(lcUrl);
>
> string lcPostData =
> "XMLData=" + HttpUtility.Url Encode("<Data>T est
> Data</Data>");
>
> loHttp.Method=" POST";
> loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
> byte [] lbPostBuffer = encoding.GetByt es(lcPostData);
> loHttp.ContentL ength = lbPostBuffer.Le ngth;
>
> Stream loPostData = loHttp.GetReque stStream();
> loPostData.Writ e(lbPostBuffer, 0,lbPostBuffer. Length);
> loPostData.Clos e();
>
> HttpWebResponse loWebResponse = (HttpWebRespons e)
> loHttp.GetRespo nse();
>
> Encoding enc = System.Text.Enc oding.GetEncodi ng(1252);
>
> StreamReader loResponseStrea m =
> new StreamReader(lo WebResponse.Get ResponseStream( ));
>
> string lcHtml = loResponseStrea m.ReadToEnd();
>
> Response.Write (lcHtml);
>
> loWebResponse.C lose();
> loResponseStrea m.Close();
>
> Receiving code:
> Stream str = Request.InputSt ream;
> int strLen = (int)str.Length ;
> byte[] bArr = new byte[strLen];
> Int32 bytes = str.Read(bArr,0 ,strLen);
> string strmContents =
> System.Text.Enc oding.ASCII.Get String(bArr,
> 0, bytes);
> Response.Write (strmContents);
>
>
> The above code will work with XMLData=xyz. But when "<" or ">" is in
> the
> string as above, an error is returned from the receiving page:
> The remote server returned an error: (500) Internal Server Error
>
> If the following line is commented out, it works:
> loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
>
> When it works with the above line commented out, the result displayed
> is:
> XMLData=%3cData %3eTest+Data%3c %2fData%3e
>
> If I use:
> string strXMLData =
> System.Text.Enc oding.ASCII.Get String(bArr);
> strXMLData = HttpUtility.Url Decode(strXMLDa ta);
> Response.Write (strXMLData);
>
> The result I get is: XMLData=Test Data
> I need the end result to be <Data>Test Data</Data>"
>
> Where am I going wrong?
>
> Thanks for any help
>
>

[Danny]

Hi Bruce

I tried what you said and still get the error. What would be the most common
approach for sending xml documents from multiple clients to a server?

Thanks
Danny

"Bruce Barker" wrote:

you need to turn validateRequest off for this page. by default, asp.net
throws an error if a "<" is found in the form data. this is to handle bady
coded sites that allow script injection.

-- bruce (sqlwork.com)

"Danny" <Da***@discussi ons.microsoft.c om> wrote in message
news:E2******** *************** ***********@mic rosoft.com...

I am working on a project in which a number of client applications will be
posting xml documents as a byte array to an ASP.NET page on our web
server. I
am trying to simulate the process and run into problems.

Sending code:

ASCIIEncoding encoding = new ASCIIEncoding() ;

string lcUrl = "http://localhost/test/receive.aspx";
HttpWebRequest loHttp =
(HttpWebRequest ) WebRequest.Crea te(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.Url Encode("<Data>T est
Data</Data>");

loHttp.Method=" POST";
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetByt es(lcPostData);
loHttp.ContentL ength = lbPostBuffer.Le ngth;

Stream loPostData = loHttp.GetReque stStream();
loPostData.Writ e(lbPostBuffer, 0,lbPostBuffer. Length);
loPostData.Clos e();

HttpWebResponse loWebResponse = (HttpWebRespons e)
loHttp.GetRespo nse();

Encoding enc = System.Text.Enc oding.GetEncodi ng(1252);

StreamReader loResponseStrea m =
new StreamReader(lo WebResponse.Get ResponseStream( ));

string lcHtml = loResponseStrea m.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.C lose();
loResponseStrea m.Close();

Receiving code:
Stream str = Request.InputSt ream;
int strLen = (int)str.Length ;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0 ,strLen);
string strmContents =
System.Text.Enc oding.ASCII.Get String(bArr,
0, bytes);
Response.Write (strmContents);
The above code will work with XMLData=xyz. But when "<" or ">" is in the
string as above, an error is returned from the receiving page:
The remote server returned an error: (500) Internal Server Error

If the following line is commented out, it works:
loHttp.ContentT ype = "applicatio n/x-www-form-urlencoded";

When it works with the above line commented out, the result displayed is:
XMLData=%3cData %3eTest+Data%3c %2fData%3e

If I use:
string strXMLData = System.Text.Enc oding.ASCII.Get String(bArr);
strXMLData = HttpUtility.Url Decode(strXMLDa ta);
Response.Write (strXMLData);

The result I get is: XMLData=Test Data
I need the end result to be <Data>Test Data</Data>"

Where am I going wrong?

Thanks for any help