summaryrefslogtreecommitdiff
path: root/src/modules/m_messageflood.cpp
blob: 10048ccf0986e83cd9d57fe77ae84cf8e3290fec (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
189
190
191
192
193
/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
 *                       E-mail:
 *                <brain@chatspike.net>
 *           	  <Craig@chatspike.net>
 *     
 * Written by Craig Edwards, Craig McLure, and others.
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

using namespace std;

#include <stdio.h>
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "helperfuncs.h"

/* $ModDesc: Provides channel mode +f (message flood protection) */

class floodsettings
{
	bool ban;
	int secs;
	int lines;

	floodsettings() : ban(0), secs(0), lines(0) {};
	floodsettings(bool a, int b, int c) : ban(a), secs(b), lines(c) {};
}

class ModuleMsgFlood : public Module
{
	Server *Srv;
	
 public:
 
	ModuleMsgFlood(Server* Me)
		: Module::Module(Me)
	{
		Srv = Me;
		Srv->AddExtendedMode('f',MT_CHANNEL,false,1,0);
	}
	
	virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
	{
		if ((modechar == 'f') && (type == MT_CHANNEL))
		{
			if (mode_on)
			{
				std::string FloodParams = params[0];
				chanrec* c = (chanrec*)target;
				char data[MAXBUF];
				strlcpy(data,FloodParams.c_str(),MAXBUF);
				char* lines = data;
				char* secs = NULL;
				bool ban = false;
				if (*data == '*')
				{
					ban = true;
					data++;
				}
				else
				{
					ban = false;
				}
				while (*data)
				{
					if (*data == ':')
					{
						*data = 0;
						data++;
						secs = data;
						break;
					}
					else data++;
				}
				if (secs)
				{
					/* Set up the flood parameters for this channel */
					int nlines = atoi(lines);
					int nsecs = atoi(secs);
					if ((nlines<1) || (nsecs<1))
					{
						WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
						return 0;
					}
					else
					{
						if (!c->GetExt("flood"))
						{
							floodsettings *f = new floodsettings(ban,nlines,nsecs);
							c->Extend("flood",(char*)f);
						}
					}
					return 1;
				}
				else
				{
					WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
					return 0;
				}
				
			}
			else
			{
				if (c->GetExt("flood"))
				{
					floodsettings *f = (floodsettings*)c->GetExt("flood");
					delete f;
					c->Shrink("flood");
				}
			}
			return 1;
		}
		return 0;
	}

	void OnChannelDelete(chanrec* chan)
	{
		if (c->GetExt("flood"))
		{
			floodsettings *f = (floodsettings*)c->GetExt("flood");
			delete f;
			c->Shrink("flood");
		}
	}

	void Implements(char* List)
	{
		List[I_On005Numeric] = List[I_OnExtendedMode] = List[I_OnChannelDelete] = 1;
	}

        virtual void On005Numeric(std::string &output)
        {
                std::stringstream line(output);
                std::string temp1, temp2;
                while (!line.eof())
                {
                        line >> temp1;
                        if (temp1.substr(0,10) == "CHANMODES=")
                        {
				// By doing this we're *assuming* no other module has fucked up the CHANMODES=
				// section of the 005 numeric. If they have, we're going DOWN in a blaze of glory,
				// with a honking great EXCEPTION :)
				temp1.insert(temp1.find(",")+1,"f");
                        }
                        temp2 = temp2 + temp1 + " ";
                }
		if (temp2.length())
	                output = temp2.substr(0,temp2.length()-1);
        }

	virtual ~ModuleMsgFlood()
	{
	}
	
	virtual Version GetVersion()
	{
		return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
	}
};


class ModuleMsgFloodFactory : public ModuleFactory
{
 public:
	ModuleMsgFloodFactory()
	{
	}
	
	~ModuleMsgFloodFactory()
	{
	}
	
	virtual Module * CreateModule(Server* Me)
	{
		return new ModuleMsgFlood(Me);
	}
	
};


extern "C" void * init_module( void )
{
	return new ModuleMsgFloodFactory;
}