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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
// ChannelManager.cpp
// Implements the cChannelManager class which stores and calls channel callbacks
#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include <algorithm>
#include "ByteBuffer.h"
#include "ChannelManager.h"
#include "ChannelCallback.h"
#include "ClientHandle.h"
#include "Entities/Player.h"
#include "OSSupport/CriticalSection.h"
#include "World.h"
class cChannelBroadcastCallback : public cPlayerListCallback
{
public:
cChannelBroadcastCallback(const AString & a_Channel, const AString & a_Data)
: m_Channel(a_Channel), m_Data(a_Data){}
virtual bool Item(cPlayer * a_Type)
{
cClientHandle * Handle = a_Type->GetClientHandle();
if (Handle->HasPluginChannel(m_Channel))
{
Handle->SendPluginMessage(m_Channel, m_Data);
}
return false;
}
private:
AString m_Channel;
AString m_Data;
};
bool cChannelManager::RegisterChannel(const AString & a_Channel, cChannelCallbackPtr a_Callback)
{
cCSLock Lock(m_CSCallbacks);
auto Result = m_ChannelCallbacks.emplace(a_Channel, a_Callback);
return Result.second;
}
bool cChannelManager::RemoveChannel(const AString & a_Channel)
{
cCSLock Lock(m_CSCallbacks);
auto callback = m_ChannelCallbacks.find(a_Channel);
if (callback != m_ChannelCallbacks.end())
{
m_ChannelCallbacks.erase(callback);
return true;
}
return false;
}
void cChannelManager::AddClientToChannel(cClientHandle & a_Client, const AString & a_Channel)
{
a_Client.RegisterChannel(a_Channel);
a_Client.SendPluginMessage("REGISTER", a_Channel);
}
void cChannelManager::AddClientToChannels(cClientHandle & a_Client, const AString & a_Channels)
{
auto channels = BreakApartChannels(a_Channels);
a_Client.RegisterChannels(channels);
}
void cChannelManager::RemoveClientFromChannel(cClientHandle & a_Client, const AString & a_Channel)
{
a_Client.UnregisterChannel(a_Channel);
a_Client.SendPluginMessage("UNREGISTER", a_Channel);
}
void cChannelManager::RemoveClientFromChannels(cClientHandle & a_Client, const AString & a_Channels)
{
auto channels = BreakApartChannels(a_Channels);
a_Client.UnregisterChannels(channels);
}
bool cChannelManager::ClientHasChannel(cClientHandle & a_Client, const AString & a_Channel)
{
return a_Client.HasPluginChannel(a_Channel);
}
void cChannelManager::HandleChannelMessage(cClientHandle & a_Client, const AString & a_Channel, cByteBuffer & a_Data)
{
bool HasChannel = ClientHasChannel(a_Client, a_Channel);
// If the client has not registered to send and recieve this channel, log it and send an unregister message.
// Otherwise try to use it.
if (HasChannel)
{
cCSLock Lock(m_CSCallbacks);
auto Callback = m_ChannelCallbacks.find(a_Channel);
// If a callback has been registered for this channel, call it.
// Otherwise, call the hook
if (HasChannel && (Callback != m_ChannelCallbacks.end()))
{
Callback->second->Call(a_Client, a_Data);
}
else
{
cPluginManager::Get()->CallHookPluginMessage(a_Client, a_Channel, a_Data);
}
}
else
{
// Ignore if client sent something but didn't register the channel first
LOGD("Player %s sent a plugin message on channel \"%s\", but didn't REGISTER it first", a_Client.GetUsername().c_str(), a_Channel.c_str());
a_Client.SendPluginMessage("UNREGISTER", a_Channel);
}
}
void cChannelManager::HandlePluginUnloading(const cPluginLua * a_Plugin)
{
cCSLock Lock(m_CSCallbacks);
for (auto it = m_ChannelCallbacks.begin(); it != m_ChannelCallbacks.end();)
{
if (!it->second->BelongsTo(a_Plugin))
{
++it;
}
else
{
it = m_ChannelCallbacks.erase(it);
}
}
}
void cChannelManager::BroadcastChannelMessage(const AString & a_Channel, cByteBuffer & a_Data, cWorld * a_World)
{
AString Temp;
a_Data.ReadAll(Temp);
if (a_World != nullptr)
{
cChannelBroadcastCallback Callback(a_Channel, Temp);
a_World->ForEachPlayer(Callback);
}
else
{
// TODO: Implement server-wide broadcast
}
}
AStringVector cChannelManager::BreakApartChannels(const AString & a_Channels)
{
// Break the string on each NUL character.
// Note that StringSplit() doesn't work on this because NUL is a special char - string terminator
size_t len = a_Channels.size();
size_t first = 0;
AStringVector res;
for (size_t i = 0; i < len; i++)
{
if (a_Channels[i] != 0)
{
continue;
}
if (i > first)
{
res.push_back(a_Channels.substr(first, i - first));
}
first = i + 1;
} // for i - a_PluginChannels[]
if (first < len)
{
res.push_back(a_Channels.substr(first, len - first));
}
return res;
}
|
