/usr/share/asp.net-demos/1.1/handlers/monodoc.ashx is in asp.net-examples 4.2-2build1.
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<%@ Assembly name="monodoc" %>
//
// Mono.Web.Handlers.MonodocHandler.
//
// Authors:
// Ben Maurer (bmaurer@users.sourceforge.net)
//
// (C) 2003 Ben Maurer
//
using System;
using System.Collections;
using System.IO;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using Monodoc;
namespace Mono.Website.Handlers
{
public class MonodocHandler : IHttpHandler
{
static RootTree help_tree;
static MonodocHandler ()
{
help_tree = RootTree.LoadTree ();
}
void IHttpHandler.ProcessRequest (HttpContext context)
{
string link = (string) context.Request.Params["link"];
if (link == null)
link = "root:";
if (link.StartsWith ("source-id:") && (link.EndsWith (".gif") || link.EndsWith (".jpeg") || link.EndsWith (".jpg") || link.EndsWith(".png")))
{
switch (link.Substring (link.LastIndexOf ('.') + 1))
{
case "gif":
context.Response.ContentType = "image/gif";
break;
case "jpeg":
case "jpg":
context.Response.ContentType = "image/jpeg";
break;
case "png":
context.Response.ContentType = "image/png";
break;
default:
throw new Exception ("Internal error");
}
Stream s = help_tree.GetImage (link);
if (s == null)
throw new HttpException (404, "File not found");
Copy (s, context.Response.OutputStream);
return;
}
Node n;
string content = help_tree.RenderUrl (link, out n);
PrintDocs (content, context);
}
void Copy (Stream input, Stream output)
{
const int BUFFER_SIZE=8192; // 8k buf
byte [] buffer = new byte [BUFFER_SIZE];
int len;
while ( (len = input.Read (buffer, 0, BUFFER_SIZE)) > 0)
output.Write (buffer, 0, len);
output.Flush();
}
string requestPath;
void PrintDocs (string content, HttpContext ctx)
{
Node n;
ctx.Response.Write (@"
<html>
<head>
<script>
<!--
function load ()
{
objs = document.getElementsByTagName('a');
for (i = 0; i < objs.length; i++) {
e = objs [i];
if (e.href == null) continue;
objs[i].href = makeLink (objs[i].href);
}
objs = document.getElementsByTagName('img');
for (i = 0; i < objs.length; i++)
{
e = objs [i];
if (e.src == null) continue;
objs[i].src = makeLink (objs[i].src);
}
}
function makeLink (link)
{
if (link == '') return '';
if (link.charAt(0) == '#') return link;
protocol = link.substring (0, link.indexOf (':'));
switch (protocol)
{
case 'http':
case 'ftp':
case 'mailto':
return link;
default:
return '" + ctx.Request.Path + @"?link=' + link.replace(/\+/g, '%2B');
}
}
-->
</script>
<title>Mono Documentation</title>
</head>
<body onLoad='load()'>
");
requestPath=ctx.Request.Path;
string output;
if (content == null)
output = "No documentation available on this topic";
else {
output = MakeLinks(content);
}
ctx.Response.Write (output);
ctx.Response.Write (@"</body></html>");
}
string MakeLinks(string content)
{
MatchEvaluator linkUpdater=new MatchEvaluator(MakeLink);
if(content.Trim().Length<1|| content==null)
return content;
try
{
string updatedContents=Regex.Replace(content,"(<a[^>]*href=['\"])([^'\"]+)(['\"][^>]*)(>)", linkUpdater);
return(updatedContents);
}
catch(Exception e)
{
return "LADEDA" + content+"!<!--Exception:"+e.Message+"-->";
}
}
// Delegate to be called from MakeLinks for fixing <a> tag
string MakeLink (Match theMatch)
{
string updated_link = null;
// Return the link without change if it of the form
// $protocol://... or #...
string link = theMatch.Groups[2].ToString();
if (Regex.Match(link, @"^\w+:\/\/").Success || Regex.Match(link, "^#").Success)
updated_link = theMatch.Groups[0].ToString();
else {
updated_link = String.Format ("{0}{1}?link={2}{3} target=\"content\"{4}",
theMatch.Groups[1].ToString(),
requestPath,
HttpUtility.UrlEncode (link.Replace ("file://","")),
theMatch.Groups[3].ToString(),
theMatch.Groups[4].ToString());
}
return updated_link;
}
bool IHttpHandler.IsReusable
{
get {
return true;
}
}
}
}
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