summaryrefslogtreecommitdiff
path: root/src/modules/m_delaymsg.cpp
blob: b5fdd8238fdf15611a7d93f9747953b4b98bfc49 (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
/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
 * See: http://wiki.inspircd.org/Credits
 *
 * This program is free but copyrighted software; see
 *	    the file COPYING for details.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"
#include <stdarg.h>

/* $ModDesc: Provides channelmode +d <int>, to deny messages to a channel until <int> seconds. */

class DelayMsgMode : public ModeHandler
{
 private:
	CUList empty;
 public:
	DelayMsgMode(InspIRCd* Instance, Module* Parent) : ModeHandler(Instance, Parent, 'd', 1, 0, false, MODETYPE_CHANNEL, false, 0, '@') {};

	ModePair ModeSet(User*, User*, Channel* channel, const std::string &parameter)
	{
		std::string climit = channel->GetModeParameter('d');
		if (!climit.empty())
		{
			return std::make_pair(true, climit);
		}
		else
		{
			return std::make_pair(false, parameter);
		}
	}

	bool CheckTimeStamp(std::string &their_param, const std::string &our_param, Channel*)
	{
		return (atoi(their_param.c_str()) < atoi(our_param.c_str()));
	}

	ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding);
};

class ModuleDelayMsg : public Module
{
 private:
	DelayMsgMode djm;
 public:
	ModuleDelayMsg(InspIRCd* Me) : Module(Me), djm(Me, this)
	{
		if (!ServerInstance->Modes->AddMode(&djm))
			throw ModuleException("Could not add new modes!");
		Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnCleanup, I_OnUserPreMessage};
		ServerInstance->Modules->Attach(eventlist, this, 5);
	}
	virtual ~ModuleDelayMsg();
	virtual Version GetVersion();
	void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent, bool created);
	void OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent);
	void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent);
	void OnCleanup(int target_type, void* item);
	ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list);
};

ModeAction DelayMsgMode::OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
{
	if (adding)
	{
		/* Setting a new limit, sanity check */
		long limit = atoi(parameter.c_str());

		/* Wrap low values at 32768 */
		if (limit < 0)
			limit = 0x7FFF;

		parameter = ConvToStr(limit);
	}
	else
	{
		/*
		 * Clean up metadata
		 */
		CUList* names = channel->GetUsers();
		for (CUListIter n = names->begin(); n != names->end(); ++n)
			n->first->Shrink("delaymsg_" + channel->name);
	}
	channel->SetModeParam('d', adding ? parameter : "");
	return MODEACTION_ALLOW;
}

ModuleDelayMsg::~ModuleDelayMsg()
{
	ServerInstance->Modes->DelMode(&djm);
}

Version ModuleDelayMsg::GetVersion()
{
	return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
}

void ModuleDelayMsg::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent, bool created)
{
	if (channel->IsModeSet('d'))
		user->Extend("delaymsg_"+channel->name, reinterpret_cast<char*>(ServerInstance->Time()));
}

void ModuleDelayMsg::OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent)
{
	user->Shrink("delaymsg_"+channel->name);
}

void ModuleDelayMsg::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
{
	user->Shrink("delaymsg_"+chan->name);
}

void ModuleDelayMsg::OnCleanup(int target_type, void* item)
{
	if (target_type == TYPE_USER)
	{
		User* user = (User*)item;
		for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
		{
			Channel* chan = f->first;
			user->Shrink("delaymsg_"+chan->name);
		}
	}
}

ModResult ModuleDelayMsg::OnUserPreMessage(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
{
	/* Server origin */
	if (!user)
		return MOD_RES_PASSTHRU;

	if (target_type != TYPE_CHANNEL)
		return MOD_RES_PASSTHRU;

	Channel* channel = (Channel*) dest;

	void* jointime_as_ptr;

	if (!user->GetExt("delaymsg_"+channel->name, jointime_as_ptr))
		return MOD_RES_PASSTHRU;

	time_t jointime = reinterpret_cast<time_t>(jointime_as_ptr);

	std::string len = channel->GetModeParameter('d');

	if (jointime + atoi(len.c_str()) > ServerInstance->Time())
	{
		if (channel->GetStatus(user) < STATUS_VOICE)
		{
			user->WriteNumeric(404, "%s %s :You must wait %s seconds after joining to send to channel (+d)",
				user->nick.c_str(), channel->name.c_str(), len.c_str());
			return MOD_RES_DENY;
		}
	}
	else
	{
		/* Timer has expired, we can stop checking now */
		user->Shrink("delaymsg_"+channel->name);
	}
	return MOD_RES_PASSTHRU;
}

MODULE_INIT(ModuleDelayMsg)