aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Capabilities/CapsHandlers.cs
blob: 458272d10c361357521e405bfbcd2a3f322bc551 (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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*
 * 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.Collections;
using System.Collections.Generic;
using OpenSim.Framework.Servers;
using OpenSim.Framework.Servers.HttpServer;

namespace OpenSim.Framework.Capabilities
{
    /// <summary>
    /// CapsHandlers is a cap handler container but also takes
    /// care of adding and removing cap handlers to and from the
    /// supplied BaseHttpServer.
    /// </summary>
    public class CapsHandlers
    {
        private Dictionary <string, IRequestHandler> m_capsHandlers = new Dictionary<string, IRequestHandler>();
        private IHttpServer m_httpListener;
        private string m_httpListenerHostName;
        private uint m_httpListenerPort;
        private bool m_useSSL = false;

        /// <summary></summary>
        /// CapsHandlers is a cap handler container but also takes
        /// care of adding and removing cap handlers to and from the
        /// supplied BaseHttpServer.
        /// </summary>
        /// <param name="httpListener">base HTTP server</param>
        /// <param name="httpListenerHostname">host name of the HTTP server</param>
        /// <param name="httpListenerPort">HTTP port</param>
        public CapsHandlers(BaseHttpServer httpListener, string httpListenerHostname, uint httpListenerPort)
            : this(httpListener,httpListenerHostname,httpListenerPort, false)
        {
        }

        /// <summary></summary>
        /// CapsHandlers is a cap handler container but also takes
        /// care of adding and removing cap handlers to and from the
        /// supplied BaseHttpServer.
        /// </summary>
        /// <param name="httpListener">base HTTP server</param>
        /// <param name="httpListenerHostname">host name of the HTTP
        /// server</param>
        /// <param name="httpListenerPort">HTTP port</param>
        public CapsHandlers(IHttpServer httpListener, string httpListenerHostname, uint httpListenerPort, bool https)
        {
            m_httpListener = httpListener;
            m_httpListenerHostName = httpListenerHostname;
            m_httpListenerPort = httpListenerPort;
            m_useSSL = https;
            if (httpListener != null && m_useSSL)
            {
                m_httpListenerHostName = httpListener.SSLCommonName;
                m_httpListenerPort = httpListener.SSLPort;
            }
        }

        /// <summary>
        /// Remove the cap handler for a capability.
        /// </summary>
        /// <param name="capsName">name of the capability of the cap
        /// handler to be removed</param>
        public void Remove(string capsName)
        {
            lock (m_capsHandlers)
            {
                m_httpListener.RemoveStreamHandler("POST", m_capsHandlers[capsName].Path);
                m_httpListener.RemoveStreamHandler("GET", m_capsHandlers[capsName].Path);
                m_capsHandlers.Remove(capsName);
            }
        }

        public bool ContainsCap(string cap)
        {
            lock (m_capsHandlers)
                return m_capsHandlers.ContainsKey(cap);
        }

        /// <summary>
        /// The indexer allows us to treat the CapsHandlers object
        /// in an intuitive dictionary like way.
        /// </summary>
        /// <remarks>
        /// The indexer will throw an exception when you try to
        /// retrieve a cap handler for a cap that is not contained in
        /// CapsHandlers.
        /// </remarks>
        public IRequestHandler this[string idx]
        {
            get
            {
                lock (m_capsHandlers)
                    return m_capsHandlers[idx];
            }

            set
            {
                lock (m_capsHandlers)
                {
                    if (m_capsHandlers.ContainsKey(idx))
                    {
                        m_httpListener.RemoveStreamHandler("POST", m_capsHandlers[idx].Path);
                        m_capsHandlers.Remove(idx);
                    }
    
                    if (null == value) return;
    
                    m_capsHandlers[idx] = value;
                    m_httpListener.AddStreamHandler(value);
                }
            }
        }

        /// <summary>
        /// Return the list of cap names for which this CapsHandlers
        /// object contains cap handlers.
        /// </summary>
        public string[] Caps
        {
            get
            {
                lock (m_capsHandlers)
                {
                    string[] __keys = new string[m_capsHandlers.Keys.Count];
                    m_capsHandlers.Keys.CopyTo(__keys, 0);
                    return __keys;
                }
            }
        }

        /// <summary>
        /// Return an LLSD-serializable Hashtable describing the
        /// capabilities and their handler details.
        /// </summary>
        /// <param name="excludeSeed">If true, then exclude the seed cap.</param>
        public Hashtable GetCapsDetails(bool excludeSeed, List<string> requestedCaps)
        {
            Hashtable caps = new Hashtable();
            string protocol = "http://";
            
            if (m_useSSL)
                protocol = "https://";

            string baseUrl = protocol + m_httpListenerHostName + ":" + m_httpListenerPort.ToString();

            lock (m_capsHandlers)
            {
                foreach (string capsName in m_capsHandlers.Keys)
                {
                    if (excludeSeed && "SEED" == capsName)
                        continue;

                    if (requestedCaps != null && !requestedCaps.Contains(capsName))
                        continue;

                    caps[capsName] = baseUrl + m_capsHandlers[capsName].Path;
                }
            }

            return caps;
        }
    }
}