summaryrefslogtreecommitdiff
path: root/src/modules/m_timedbans.cpp
blob: a1fb41439e2898f04fe270c525e312ee32d44f6e (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
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
223
224
225
226
227
228
229
230
/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
 * See: http://www.inspircd.org/wiki/index.php/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

/* $ModDesc: Adds timed bans */

#include <stdio.h>
#include <vector>
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "hashcomp.h"
#include "configreader.h"
#include "inspircd.h"


/** Holds a timed ban
 */
class TimedBan : public classbase
{
 public:
	std::string channel;
	std::string mask;
	time_t expire;
};

typedef std::vector<TimedBan> timedbans;
timedbans TimedBanList;

/** Handle /TBAN
 */
class cmd_tban : public command_t
{
 public:
 cmd_tban (InspIRCd* Instance) : command_t(Instance,"TBAN", 0, 3)
	{
		this->source = "m_timedbans.so";
		syntax = "<channel> <duration> <banmask>";
	}

	CmdResult Handle (const char** parameters, int pcnt, userrec *user)
	{
		chanrec* channel = ServerInstance->FindChan(parameters[0]);
		if (channel)
		{
			int cm = channel->GetStatus(user);
			if ((cm == STATUS_HOP) || (cm == STATUS_OP))
			{
				if (!ServerInstance->IsValidMask(parameters[2]))
				{
					user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban mask");
					return CMD_FAILURE;
				}
				for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++)
				{
					if (!strcasecmp(i->data,parameters[2]))
					{
						user->WriteServ("NOTICE "+std::string(user->nick)+" :The ban "+std::string(parameters[2])+" is already on the banlist of "+std::string(parameters[0]));
						return CMD_FAILURE;
					}
				}
				TimedBan T;
				std::string channelname = parameters[0];
				unsigned long expire = ServerInstance->Duration(parameters[1]) + time(NULL);
				if (ServerInstance->Duration(parameters[1]) < 1)
				{
					user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban time");
					return CMD_FAILURE;
				}
				char duration[MAXBUF];
				snprintf(duration,MAXBUF,"%lu",ServerInstance->Duration(parameters[1]));
				std::string mask = parameters[2];
				const char *setban[32];
				setban[0] = parameters[0];
				setban[1] = "+b";
				setban[2] = parameters[2];
				// use CallCommandHandler to make it so that the user sets the mode
				// themselves
				ServerInstance->CallCommandHandler("MODE",setban,3,user);
				/* Check if the ban was actually added (e.g. banlist was NOT full) */
				bool was_added = false;
				for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++)
					if (!strcasecmp(i->data,mask.c_str()))
						was_added = true;
				if (was_added)
				{
					T.channel = channelname;
					T.mask = mask;
					T.expire = expire;
					TimedBanList.push_back(T);
					channel->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s added a timed ban on %s lasting for %s seconds.", channel->name, user->nick, mask.c_str(), duration);
					return CMD_SUCCESS;
				}
				return CMD_FAILURE;
			}
			else user->WriteServ("482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, channel->name);
			return CMD_FAILURE;
		}
		user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]);
		return CMD_FAILURE;
	}
};

class ModuleTimedBans : public Module
{
	cmd_tban* mycommand;
 public:
	ModuleTimedBans(InspIRCd* Me)
		: Module(Me)
	{
		
		mycommand = new cmd_tban(ServerInstance);
		ServerInstance->AddCommand(mycommand);
		TimedBanList.clear();
	}
	
	virtual ~ModuleTimedBans()
	{
		TimedBanList.clear();
	}

	void Implements(char* List)
	{
		List[I_OnDelBan] = List[I_OnBackgroundTimer] = 1;
	}

	virtual int OnDelBan(userrec* source, chanrec* chan, const std::string &banmask)
	{
		irc::string listitem = banmask.c_str();
		irc::string thischan = chan->name;
		for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++)
		{
			irc::string target = i->mask.c_str();
			irc::string tchan = i->channel.c_str();
			if ((listitem == target) && (tchan == thischan))
			{
				TimedBanList.erase(i);
				break;
			}
		}
		return 0;
	}

	virtual void OnBackgroundTimer(time_t curtime)
	{
		bool again = true;
		while (again)
		{
			again = false;
			for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++)
			{
				if (curtime > i->expire)
				{
					chanrec* cr = ServerInstance->FindChan(i->channel);
					again = true;
					if (cr)
					{
						cr->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :Timed ban on %s expired.", cr->name, i->mask.c_str());
						const char *setban[3];
						setban[0] = i->channel.c_str();
						setban[1] = "-b";
						setban[2] = i->mask.c_str();
						// kludge alert!
						// ::SendMode expects a userrec* to send the numeric replies
						// back to, so we create it a fake user that isnt in the user
						// hash and set its descriptor to FD_MAGIC_NUMBER so the data
						// falls into the abyss :p
						userrec* temp = new userrec(ServerInstance);
						temp->SetFd(FD_MAGIC_NUMBER);
                                                /* FIX: Send mode remotely*/
                                                std::deque<std::string> n;
                                                n.push_back(setban[0]);
                                                n.push_back("-b");
                                                n.push_back(setban[2]);
						ServerInstance->SendMode(setban,3,temp);
                                                Event rmode((char *)&n, NULL, "send_mode");
                                                rmode.Send(ServerInstance);
						DELETE(temp);
					}
					else
					{
						/* Where the hell did our channel go?! */
						TimedBanList.erase(i);
					}
					// we used to delete the item here, but we dont need to as the servermode above does it for us,
					break;
				}
			}
		}
	}
	
	virtual Version GetVersion()
	{
		return Version(1,1,0,0,VF_VENDOR,API_VERSION);
	}
};


class ModuleTimedBansFactory : public ModuleFactory
{
 public:
	ModuleTimedBansFactory()
	{
	}
	
	~ModuleTimedBansFactory()
	{
	}
	
	virtual Module * CreateModule(InspIRCd* Me)
	{
		return new ModuleTimedBans(Me);
	}
	
};


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