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class for WIN-CGI

Posted on 1998-03-26
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Last Modified: 2010-04-06
I have develop a class for Win-CGI but I cannot seem to be able to return the my response to client. Each time I run my program it seems to work but I get the following message in my browser window.

CGI Error
The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are:

I use the IIS 4.0 web server.
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Question by:malaland
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6 Comments
 
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Expert Comment

by:d003303
ID: 1360923
In the CGI interface, you have to build the HTML header by yourself. The design of a HTTP response header is defined in RFC 2068, section 6.2 (ftp://ftp.leo.org/pub/comp/doc/standards/rfc/rfc-2000-2099/rfc2068). Briefly, a HTTP response header can look like:
(only the text between the lines count, CR+LF and blanks are important !)
----------------------------------
HTTP/1.0 200 OK
Server: MyPrivateServer
Content-length: 123
Content-type: text/html


----------------------------------
The header ends with 2 CR+LF, then comes the content. Note that the Content-length value should set appropriate.

Slash/d003303
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Expert Comment

by:d003303
ID: 1360924
I forgot, everything in the header is case sensitive.
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Author Comment

by:malaland
ID: 1360925
No good, My server hangs with these lines.
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Expert Comment

by:itamar
ID: 1360926
Hi (again) malaland,

could you send a piece of code, at least the response part of the program.

Just a guess:

    WriteLn('Content-type: text/html');
    WriteLn;
    WriteLn('<HTML>');
    WriteLn('<HEAD>');
    WriteLn('<TITLE>Hello !</TITLE>');
    WriteLn('</HEAD>');
    WriteLn('<BODY>');

Something like that should work.

Bye,
Itamar
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Accepted Solution

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d003303 earned 150 total points
ID: 1360927
Leave our the line with the "Server:" and "HTTP/1.0" Keywords. It seems that your server is providing these additional header. So, like itamars example, it should read

var MyHTML : string;
begin
  MyHTML := '<HTML><HEAD><TITLE>Hello !</TITLE></HEAD>';
  MyHTML := MyHTML + '<BODY>Hello World</BODY></HTML>';

  WriteLn(Format('Content-length: %d', [Length(MyHTML)]));
  WriteLn('Content-type: text/html');
  WriteLn;
  Write(MyHTML);
end;

Slash/d003303
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Author Comment

by:malaland
ID: 1360928
I found a way. Unfortunately it did not have anything to do with what you told me.
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