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.Create(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.UrlEncode("<Data>Test Data</Data>");

loHttp.Method="POST";
loHttp.ContentType = "application/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetBytes(lcPostData);
loHttp.ContentLength = lbPostBuffer.Length;

Stream loPostData = loHttp.GetRequestStream();
loPostData.Write(lbPostBuffer,0,lbPostBuffer.Lengt h);
loPostData.Close();

HttpWebResponse loWebResponse = (HttpWebResponse)
loHttp.GetResponse();

Encoding enc = System.Text.Encoding.GetEncoding(1252);

StreamReader loResponseStream =
new StreamReader(loWebResponse.GetResponseStream());

string lcHtml = loResponseStream.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.Close();
loResponseStream.Close();

Receiving code:
Stream str = Request.InputStream;
int strLen = (int)str.Length;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0,strLen);
string strmContents = System.Text.Encoding.ASCII.GetString(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.ContentType = "application/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.Encoding.ASCII.GetString(bArr);
strXMLData = HttpUtility.UrlDecode(strXMLData);
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***@discussions.microsoft.com> wrote in message
news:E2**********************************@microsof t.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.Create(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.UrlEncode("<Data>Test
Data</Data>");

loHttp.Method="POST";
loHttp.ContentType = "application/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetBytes(lcPostData);
loHttp.ContentLength = lbPostBuffer.Length;

Stream loPostData = loHttp.GetRequestStream();
loPostData.Write(lbPostBuffer,0,lbPostBuffer.Lengt h);
loPostData.Close();

HttpWebResponse loWebResponse = (HttpWebResponse)
loHttp.GetResponse();

Encoding enc = System.Text.Encoding.GetEncoding(1252);

StreamReader loResponseStream =
new StreamReader(loWebResponse.GetResponseStream());

string lcHtml = loResponseStream.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.Close();
loResponseStream.Close();

Receiving code:
Stream str = Request.InputStream;
int strLen = (int)str.Length;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0,strLen);
string strmContents =
System.Text.Encoding.ASCII.GetString(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.ContentType = "application/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.Encoding.ASCII.GetString(bArr);
strXMLData = HttpUtility.UrlDecode(strXMLData);
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***@discussions.microsoft.com> wrote in message
news:E2**********************************@microsof t.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.Create(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.UrlEncode("<Data>Test
Data</Data>");

loHttp.Method="POST";
loHttp.ContentType = "application/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetBytes(lcPostData);
loHttp.ContentLength = lbPostBuffer.Length;

Stream loPostData = loHttp.GetRequestStream();
loPostData.Write(lbPostBuffer,0,lbPostBuffer.Lengt h);
loPostData.Close();

HttpWebResponse loWebResponse = (HttpWebResponse)
loHttp.GetResponse();

Encoding enc = System.Text.Encoding.GetEncoding(1252);

StreamReader loResponseStream =
new StreamReader(loWebResponse.GetResponseStream());

string lcHtml = loResponseStream.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.Close();
loResponseStream.Close();

Receiving code:
Stream str = Request.InputStream;
int strLen = (int)str.Length;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0,strLen);
string strmContents =
System.Text.Encoding.ASCII.GetString(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.ContentType = "application/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.Encoding.ASCII.GetString(bArr);
strXMLData = HttpUtility.UrlDecode(strXMLData);
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***@discussions.microsoft.com> wrote in message
news:E2**********************************@microsof t.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.Create(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.UrlEncode("<Data>Test
Data</Data>");

loHttp.Method="POST";
loHttp.ContentType = "application/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetBytes(lcPostData);
loHttp.ContentLength = lbPostBuffer.Length;

Stream loPostData = loHttp.GetRequestStream();
loPostData.Write(lbPostBuffer,0,lbPostBuffer.Lengt h);
loPostData.Close();

HttpWebResponse loWebResponse = (HttpWebResponse)
loHttp.GetResponse();

Encoding enc = System.Text.Encoding.GetEncoding(1252);

StreamReader loResponseStream =
new StreamReader(loWebResponse.GetResponseStream());

string lcHtml = loResponseStream.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.Close();
loResponseStream.Close();

Receiving code:
Stream str = Request.InputStream;
int strLen = (int)str.Length;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0,strLen);
string strmContents =
System.Text.Encoding.ASCII.GetString(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.ContentType = "application/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.Encoding.ASCII.GetString(bArr);
strXMLData = HttpUtility.UrlDecode(strXMLData);
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.......hope it helps.

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

--
Regards

John Timney
ASP.NET MVP
Microsoft Regional Director

"Danny" <Da***@discussions.microsoft.com> wrote in message
news:57**********************************@microsof t.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***@discussions.microsoft.com> wrote in message
news:E2**********************************@microsof t.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.Create(lcUrl);
>
> string lcPostData =
> "XMLData=" + HttpUtility.UrlEncode("<Data>Test
> Data</Data>");
>
> loHttp.Method="POST";
> loHttp.ContentType = "application/x-www-form-urlencoded";
> byte [] lbPostBuffer = encoding.GetBytes(lcPostData);
> loHttp.ContentLength = lbPostBuffer.Length;
>
> Stream loPostData = loHttp.GetRequestStream();
> loPostData.Write(lbPostBuffer,0,lbPostBuffer.Lengt h);
> loPostData.Close();
>
> HttpWebResponse loWebResponse = (HttpWebResponse)
> loHttp.GetResponse();
>
> Encoding enc = System.Text.Encoding.GetEncoding(1252);
>
> StreamReader loResponseStream =
> new StreamReader(loWebResponse.GetResponseStream());
>
> string lcHtml = loResponseStream.ReadToEnd();
>
> Response.Write (lcHtml);
>
> loWebResponse.Close();
> loResponseStream.Close();
>
> Receiving code:
> Stream str = Request.InputStream;
> int strLen = (int)str.Length;
> byte[] bArr = new byte[strLen];
> Int32 bytes = str.Read(bArr,0,strLen);
> string strmContents =
> System.Text.Encoding.ASCII.GetString(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.ContentType = "application/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.Encoding.ASCII.GetString(bArr);
> strXMLData = HttpUtility.UrlDecode(strXMLData);
> 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***@discussions.microsoft.com> wrote in message
news:E2**********************************@microsof t.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.Create(lcUrl);

string lcPostData =
"XMLData=" + HttpUtility.UrlEncode("<Data>Test
Data</Data>");

loHttp.Method="POST";
loHttp.ContentType = "application/x-www-form-urlencoded";
byte [] lbPostBuffer = encoding.GetBytes(lcPostData);
loHttp.ContentLength = lbPostBuffer.Length;

Stream loPostData = loHttp.GetRequestStream();
loPostData.Write(lbPostBuffer,0,lbPostBuffer.Lengt h);
loPostData.Close();

HttpWebResponse loWebResponse = (HttpWebResponse)
loHttp.GetResponse();

Encoding enc = System.Text.Encoding.GetEncoding(1252);

StreamReader loResponseStream =
new StreamReader(loWebResponse.GetResponseStream());

string lcHtml = loResponseStream.ReadToEnd();

Response.Write (lcHtml);

loWebResponse.Close();
loResponseStream.Close();

Receiving code:
Stream str = Request.InputStream;
int strLen = (int)str.Length;
byte[] bArr = new byte[strLen];
Int32 bytes = str.Read(bArr,0,strLen);
string strmContents =
System.Text.Encoding.ASCII.GetString(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.ContentType = "application/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.Encoding.ASCII.GetString(bArr);
strXMLData = HttpUtility.UrlDecode(strXMLData);
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