aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Framework/Servers/HttpServer/SynchronousRestObjectRequester.cs
blob: 09ef95b4c4ef8ddaf11f9c841862927631e56adb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * 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 OpenSimulator Project 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 DEVELOPERS ``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 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.IO;
using System.Net;
using System.Text;
using System.Xml;
using System.Xml.Serialization;

namespace OpenSim.Framework.Servers.HttpServer
{
    public class SynchronousRestObjectPoster
    {
        [Obsolete]
        public static TResponse BeginPostObject<TRequest, TResponse>(string verb, string requestUrl, TRequest obj)
        {
            return SynchronousRestObjectRequester.MakeRequest<TRequest, TResponse>(verb, requestUrl, obj);
        }
    }

    public class SynchronousRestObjectRequester
    {
        /// <summary>
        /// Perform a synchronous REST request.
        /// </summary>
        /// <param name="verb"></param>
        /// <param name="requestUrl"></param>
        /// <param name="obj"> </param>
        /// <returns></returns>
        ///
        /// <exception cref="System.Net.WebException">Thrown if we encounter a network issue while posting
        /// the request.  You'll want to make sure you deal with this as they're not uncommon</exception>
        public static TResponse MakeRequest<TRequest, TResponse>(string verb, string requestUrl, TRequest obj)
        {
            Type type = typeof (TRequest);

            WebRequest request = WebRequest.Create(requestUrl);
            request.Method = verb;

            if (verb == "POST")
            {
                request.ContentType = "text/xml";

                MemoryStream buffer = new MemoryStream();

                XmlWriterSettings settings = new XmlWriterSettings();
                settings.Encoding = Encoding.UTF8;

                using (XmlWriter writer = XmlWriter.Create(buffer, settings))
                {
                    XmlSerializer serializer = new XmlSerializer(type);
                    serializer.Serialize(writer, obj);
                    writer.Flush();
                }

                int length = (int) buffer.Length;
                request.ContentLength = length;

                Stream requestStream = request.GetRequestStream();
                requestStream.Write(buffer.ToArray(), 0, length);
            }

            TResponse deserial = default(TResponse);
            try
            {
                using (WebResponse resp = request.GetResponse())
                {
                    if (resp.ContentLength > 0)
                    {
                        XmlSerializer deserializer = new XmlSerializer(typeof(TResponse));
                        deserial = (TResponse)deserializer.Deserialize(resp.GetResponseStream());
                    }
                }
            }
            catch (System.InvalidOperationException)
            {
                // This is what happens when there is invalid XML
            }
            return deserial;
        }
    }
}