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
|
using System;
using System.Collections.Generic;
using libsecondlife;
using OpenSim.Framework.Interfaces;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;
namespace OpenSim.Region.Environment.Modules
{
public class XferModule : IRegionModule, IXfer
{
public Dictionary<string, byte[]> NewFiles = new Dictionary<string, byte[]>();
public Dictionary<ulong, XferDownLoad> Transfers = new Dictionary<ulong, XferDownLoad>();
private Scene m_scene;
public XferModule()
{
}
public void Initialise(Scene scene)
{
m_scene = scene;
m_scene.EventManager.OnNewClient += NewClient;
m_scene.RegisterModuleInterface<IXfer>(this);
}
public void PostInitialise()
{
}
public void Close()
{
}
public string Name
{
get { return "XferModule"; }
}
public bool IsSharedModule
{
get { return false; }
}
public void NewClient(IClientAPI client)
{
client.OnRequestXfer += RequestXfer;
client.OnConfirmXfer += AckPacket;
}
/// <summary>
///
/// </summary>
/// <param name="remoteClient"></param>
/// <param name="xferID"></param>
/// <param name="fileName"></param>
public void RequestXfer(IClientAPI remoteClient, ulong xferID, string fileName)
{
lock (NewFiles)
{
if (NewFiles.ContainsKey(fileName))
{
if (!Transfers.ContainsKey(xferID))
{
byte[] fileData = NewFiles[fileName];
XferDownLoad transaction = new XferDownLoad(fileName, fileData, xferID, remoteClient);
Transfers.Add(xferID, transaction);
NewFiles.Remove(fileName);
transaction.StartSend();
}
}
}
}
public void AckPacket(IClientAPI remoteClient, ulong xferID, uint packet)
{
if (Transfers.ContainsKey(xferID))
{
Transfers[xferID].AckPacket(packet);
}
}
public bool AddNewFile(string fileName, byte[] data)
{
lock (NewFiles)
{
if (NewFiles.ContainsKey(fileName))
{
NewFiles[fileName] = data;
}
else
{
NewFiles.Add(fileName, data);
}
}
return true;
}
public class XferDownLoad
{
public byte[] Data = new byte[0];
public string FileName = "";
public ulong XferID = 0;
public int DataPointer = 0;
public uint Packet = 0;
public IClientAPI Client;
public uint Serial = 1;
private bool complete = false;
public XferDownLoad(string fileName, byte[] data, ulong xferID, IClientAPI client)
{
FileName = fileName;
Data = data;
XferID = xferID;
Client = client;
}
public XferDownLoad()
{
}
public void StartSend()
{
if (Data.Length < 1000)
{
// for now (testing ) we only support files under 1000 bytes
byte[] transferData = new byte[Data.Length + 4];
Array.Copy(Helpers.IntToBytes(Data.Length), 0, transferData, 0, 4);
Array.Copy(Data, 0, transferData, 4, Data.Length);
Client.SendXferPacket(XferID, 0 + 0x80000000, transferData);
complete = true;
}
else
{
byte[] transferData = new byte[1000 + 4];
Array.Copy(Helpers.IntToBytes(Data.Length), 0, transferData, 0, 4);
Array.Copy(Data, 0, transferData, 4, 1000);
Client.SendXferPacket(XferID, 0, transferData);
Packet++;
DataPointer = 1000;
}
}
public void AckPacket(uint packet)
{
if (!complete)
{
if ((Data.Length - DataPointer) > 1000)
{
byte[] transferData = new byte[1000];
Array.Copy(Data, DataPointer, transferData, 0, 1000);
Client.SendXferPacket(XferID, Packet, transferData);
Packet++;
DataPointer += 1000;
}
else
{
byte[] transferData = new byte[Data.Length - DataPointer];
Array.Copy(Data, DataPointer, transferData, 0, Data.Length - DataPointer);
uint endPacket = Packet |= (uint) 0x80000000;
Client.SendXferPacket(XferID, endPacket, transferData);
Packet++;
DataPointer += (Data.Length - DataPointer);
complete = true;
}
}
}
}
}
}
|
