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/*
* Copyright (c) 2008 Intel Corporation
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* -- Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* -- Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* -- Neither the name of the Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR ITS
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Net;
using System.Text;
using System.Web;
using ExtensionLoader;
using OpenMetaverse;
using HttpServer;
namespace AssetServer.Extensions
{
public class BrowseFrontend : IExtension<AssetServer>
{
AssetServer server;
public BrowseFrontend()
{
}
public void Start(AssetServer server)
{
this.server = server;
// Request for / or /?...
server.HttpServer.AddHandler("get", null, @"(^/$)|(^/\?.*)", BrowseRequestHandler);
}
public void Stop()
{
}
bool BrowseRequestHandler(IHttpClientContext client, IHttpRequest request, IHttpResponse response)
{
const int ASSETS_PER_PAGE = 25;
const string HEADER = "<html><head><title>Asset Server</title></head><body>";
const string TABLE_HEADER =
"<table><tr><th>Name</th><th>Description</th><th>Type</th><th>ID</th><th>Temporary</th><th>SHA-1</th></tr>";
const string TABLE_FOOTER = "</table>";
const string FOOTER = "</body></html>";
UUID authToken = Utils.GetAuthToken(request);
StringBuilder html = new StringBuilder();
int start = 0;
uint page = 0;
if (!String.IsNullOrEmpty(request.Uri.Query))
{
NameValueCollection query = HttpUtility.ParseQueryString(request.Uri.Query);
if (!String.IsNullOrEmpty(query["page"]) && UInt32.TryParse(query["page"], out page))
start = (int)page * ASSETS_PER_PAGE;
}
html.AppendLine(HEADER);
html.AppendLine("<p>");
if (page > 0)
html.AppendFormat("<a href=\"{0}?page={1}\">< Previous Page</a> | ", request.Uri.AbsolutePath, page - 1);
html.AppendFormat("<a href=\"{0}?page={1}\">Next Page ></a>", request.Uri.AbsolutePath, page + 1);
html.AppendLine("</p>");
html.AppendLine(TABLE_HEADER);
server.StorageProvider.ForEach(
delegate(Metadata data)
{
if (server.AuthorizationProvider.IsMetadataAuthorized(authToken, data.ID))
{
html.AppendLine(String.Format(
"<tr><td>{0}</td><td>{1}</td><td>{2}</td><td>{3}</td><td>{4}</td><td>{5}</td></tr>",
data.Name, data.Description, data.ContentType, data.ID, data.Temporary,
BitConverter.ToString(data.SHA1).Replace("-", String.Empty)));
}
else
{
html.AppendLine(String.Format(
"<tr><td>[Protected Asset]</td><td> </td><td> </td><td>{0}</td><td>{1}</td><td> </td></tr>",
data.ID, data.Temporary));
}
}, start, ASSETS_PER_PAGE
);
html.AppendLine(TABLE_FOOTER);
html.AppendLine(FOOTER);
byte[] responseData = System.Text.Encoding.UTF8.GetBytes(html.ToString());
response.Status = HttpStatusCode.OK;
response.Body.Write(responseData, 0, responseData.Length);
response.Body.Flush();
return true;
}
}
}
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