/* 
 * 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.Specialized;
using System.Net;
using OpenMetaverse;

namespace AssetServer
{
    public static class Utils
    {
        public static UUID GetAuthToken(HttpListenerRequest request)
        {
            UUID authToken = UUID.Zero;

            string[] authHeader = request.Headers.GetValues("Authorization");
            if (authHeader != null && authHeader.Length == 1)
            {
                // Example header:
                // Authorization: OpenGrid 65fda0b5-4446-42f5-b828-aaf644293646
                string[] authHeaderParts = authHeader[0].Split(' ');
                if (authHeaderParts.Length == 2 && authHeaderParts[0] == "OpenGrid")
                    UUID.TryParse(authHeaderParts[1], out authToken);
            }
            
            if (authToken == UUID.Zero && request.Cookies.Count > 0)
            {
                // Check for an authToken cookie to logins browser-compatible
                Cookie authCookie = request.Cookies["authToken"];
                if (authCookie != null)
                    UUID.TryParse(authCookie.Value, out authToken);
            }

            return authToken;
        }

        public static string SLAssetTypeToContentType(int assetType)
        {
            switch (assetType)
            {
                case 0:
                    return "image/jp2";
                case 1:
                    return "application/ogg";
                case 2:
                    return "application/x-metaverse-callingcard";
                case 3:
                    return "application/x-metaverse-landmark";
                case 5:
                    return "application/x-metaverse-clothing";
                case 6:
                    return "application/x-metaverse-primitive";
                case 7:
                    return "application/x-metaverse-notecard";
                case 10:
                    return "application/x-metaverse-lsl";
                case 11:
                    return "application/x-metaverse-lso";
                case 12:
                    return "image/tga";
                case 13:
                    return "application/x-metaverse-bodypart";
                case 17:
                    return "audio/x-wav";
                case 19:
                    return "image/jpeg";
                case 20:
                    return "application/x-metaverse-animation";
                case 21:
                    return "application/x-metaverse-gesture";
                case 22:
                    return "application/x-metaverse-simstate";
                default:
                    return "application/octet-stream";
            }
        }

        public static int ContentTypeToSLAssetType(string contentType)
        {
            switch (contentType)
            {
                case "image/jp2":
                    return 0;
                case "application/ogg":
                    return 1;
                case "application/x-metaverse-callingcard":
                    return 2;
                case "application/x-metaverse-landmark":
                    return 3;
                case "application/x-metaverse-clothing":
                    return 5;
                case "application/x-metaverse-primitive":
                    return 6;
                case "application/x-metaverse-notecard":
                    return 7;
                case "application/x-metaverse-lsl":
                    return 10;
                case "application/x-metaverse-lso":
                    return 11;
                case "image/tga":
                    return 12;
                case "application/x-metaverse-bodypart":
                    return 13;
                case "audio/x-wav":
                    return 17;
                case "image/jpeg":
                    return 19;
                case "application/x-metaverse-animation":
                    return 20;
                case "application/x-metaverse-gesture":
                    return 21;
                case "application/x-metaverse-simstate":
                    return 22;
                default:
                    return -1;
            }
        }
    }
}