一个免费的邮件列表源程序(二)_asp实例

ShowSource.asp
<%@ Language=JavaScript %>

<!–#include file = "include/SetGlobals.asp"–>

<%
// get the page to display from the URL
var sPage = "" + Request.QueryString ( "page" );

// make sure its a page we allow them to view!
switch ( sPage )
{
case "Wider":
case "COM":
case "Handle404":
case "Categories":
case "CategoryPage":
case "Columns":
case "ResultsPage":
case "Date":
case "Contact":
case "Subscribe":
case "MailToList":
   break;

default:
   Response.Redirect ( "NaughtyNaughty!" );
}

// output relevant meta tags
Init( "ASP source example" );

// output common top of page
Header( <a href="work.asp">Work</a> –> <a href=" + sPage + .asp">" + sPage + .asp"</a> –> Source, 3 );

// output page content
Content ( );

// output common bottom of page
Footer ( );
%>

<% /* standard page elements */ %>
<!–#include file = "utils/Init.asp"–>
<!–#include file = "utils/Header.asp"–>
<!–#include file = "utils/Footer.asp"–>
<!–#include file = "utils/ShowFile.asp"–>

<%
// ============================================
// the content of this page
// ============================================
function Content ( )
{
   Out ( <td width="20%">&nbsp;</td> );
   Out ( <td width="60%"> );

      // create handle to FileSystemObject
      var oFSO = Server.CreateObject ( Scripting.FileSystemObject );

      // each source file that we show source for could have a related
      // documentation file for us to display before and after the
      // source. for now, I use a generic header and footer file. the
      // true tells ShowFile to pass through any HTML to the browser.

      ShowFile ( oFSO, Generic.pre, true, false );

      switch ( sPage )
      {
      case "Categories":
      case "CategoryPage":
      case "Columns":
         Out ( <p><img src="images/new.gif">&nbsp;<a href="Categories.zip">Download</a> all the source for the category demonstration!<p> );
         break;
      }

      ShowSource ( oFSO, sPage + .asp, true );

      // show any extra utility file(s) too
      switch ( sPage )
      {
      case "Wider":
         ShowSource ( oFSO, include/SetGlobals.asp, true );
         ShowSource ( oFSO, utils/Header.asp, true );
         break;

      case "Categories":
      case "CategoryPage":
      case "Columns":
      case "Subscribe":
      case "MailToList":
         ShowSource ( oFSO, utils/Database.asp, true );
         break;

      case "Categories":
      case "CategoryPage":
      case "Columns":
         ShowSource ( oFSO, utils/ShowCategory.asp, true );
         break;
      }

      // show the generic footer
      ShowFile ( oFSO, Generic.pst, true, false );

      // weve finished with the object so free the resource
      oFSO = null;

      Out ( <p><center><a href="FSO.asp"><img src="images/source.gif" border=0></a></center> );

   Out ( </td> );
   Out ( <td width="20%">&nbsp;</td> );
}
%>
     
utils/ShowFile.asp
<%
// have we advertized our mailing list yet?
var bDoneLink = false;

// ============================================
// display the contents of the given file
// ============================================
function ShowFile ( oFSO, sFile, bPassHTML, bShowName )
{
   var ForReading = 1;
   // var ForWriting = 2;
   // var ForAppending = 8;

   // open asp file for reading
   var fFile = oFSO.OpenTextFile ( Server.MapPath( sFile ), ForReading );

   // read entire file contents into variable
   var s = fFile.ReadAll ( );

   if ( !bPassHTML )
   {
      // replace & with &amp; so HTML displayed, not interpreted
      s = s.replace ( /&/g, &amp; );

      // replace < with &lt; so HTML displayed, not interpreted
      s = s.replace ( /</g, &lt; );

      // replace newline with HTML equivalent
      s = s.replace ( /\n/g, <br> );

      // replace tabs with 3 spaces
      s = s.replace ( /\t/g, &nbsp;&nbsp;&nbsp; );

      // show filename and change font color for source code
      s = <font color="black"> + s + </font>;

      if ( bShowName )
         s = <h4> + sFile + </h4> + s;
   }

   Out ( s );

   fFile.Close ( );
}

// ============================================
// show a source file outside the table
// ============================================
function ShowSource ( oFSO, sFile, bShowName )
{
   // advertize our mailing list before the first source file
   if ( !bDoneLink )
   {
      bDoneLink = true;
      Out ( <p><b>Get informed when the source code below changes!</b> <a href="subscribe.asp">Subscribe to our mailing list.</a> );
   }

   Out ( </td> );
   Out ( <td width="20%">&nbsp;</td></tr><tr><td colspan=3 width="100%" bgcolor="#ff9900"> );

      // show news file
      ShowFile ( oFSO, sFile, false, bShowName );

   Out ( </td></tr><tr><td width="20%">&nbsp;</td> );
   Out ( <td width="60%"> );
}
%>