summaryrefslogtreecommitdiff
path: root/src/modules/m_nicklock.cpp
blob: a16d651e97672725d2777dbf84cb45890f10762a (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
/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2009 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.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"

/* $ModDesc: Provides the NICKLOCK command, allows an oper to chage a users nick and lock them to it until they quit */

/** Handle /NICKLOCK
 */
class CommandNicklock : public Command
{

 public:
	CommandNicklock (InspIRCd* Instance) : Command(Instance,"NICKLOCK", "o", 2)
	{
		this->source = "m_nicklock.so";
		syntax = "<oldnick> <newnick>";
		TRANSLATE3(TR_NICK, TR_TEXT, TR_END);
	}

	CmdResult Handle(const std::vector<std::string>& parameters, User *user)
	{
		User* target = ServerInstance->FindNick(parameters[0]);

		/* Do local sanity checks and bails */
		if (IS_LOCAL(user))
		{
			if (target && ServerInstance->ULine(target->server))
			{
				user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKLOCK command on a u-lined client",user->nick.c_str());
				return CMD_FAILURE;
			}

			if (!target)
			{
				user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
				return CMD_FAILURE;
			}

			if (target->GetExt("nick_locked"))
			{
				user->WriteNumeric(946, "%s %s :This user's nickname is already locked.",user->nick.c_str(),target->nick.c_str());
				return CMD_FAILURE;
			}

			if (!ServerInstance->IsNick(parameters[1].c_str(), ServerInstance->Config->Limits.NickMax))
			{
				user->WriteServ("NOTICE %s :*** Invalid nickname '%s'", user->nick.c_str(), parameters[1].c_str());
				return CMD_FAILURE;
			}
		}

		/* If we made it this far, extend the user */
		if (target)
		{
			target->Extend("nick_locked", "ON");
			ServerInstance->SNO->WriteToSnoMask('A', user->nick+" used NICKLOCK to change and hold "+target->nick+" to "+parameters[1]);

			/* Only send out nick from local server */
			if (IS_LOCAL(target))
			{
				std::string oldnick = user->nick;
				std::string newnick = target->nick;
				if (!target->ForceNickChange(parameters[1].c_str()))
				{
					/* XXX: We failed, this *should* not happen but if it does
					 * tell everybody. Note user is still nick locked on their old
					 * nick instead.
					 */
					ServerInstance->SNO->WriteToSnoMask('A', oldnick+" failed nickchange on NICKLOCK (from "+newnick+" to "+parameters[1]+") Locked to "+newnick+" instead");
					ServerInstance->PI->SendSNONotice("A", oldnick+" failed nickchange on NICKLOCK (from "+newnick+" to "+parameters[1]+") Locked to "+newnick+" instead");
				}
			}
		}

		/* Route it */
		return CMD_SUCCESS;
	}
};

/** Handle /NICKUNLOCK
 */
class CommandNickunlock : public Command
{
 public:
	CommandNickunlock (InspIRCd* Instance) : Command(Instance,"NICKUNLOCK", "o", 1)
	{
		this->source = "m_nicklock.so";
		syntax = "<locked-nick>";
	}

	CmdResult Handle (const std::vector<std::string>& parameters, User *user)
	{
		User* target = ServerInstance->FindNick(parameters[0]);

		/* Do local sanity checks and bails */
		if (IS_LOCAL(user))
		{
			if (target && ServerInstance->ULine(target->server))
			{
				user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Cannot use an NICKUNLOCK command on a u-lined client",user->nick.c_str());
				return CMD_FAILURE;
			}

			if (!target)
			{
				user->WriteServ("NOTICE %s :*** No such nickname: '%s'", user->nick.c_str(), parameters[0].c_str());
				return CMD_FAILURE;
			}

			if (!target->GetExt("nick_locked"))
			{
				user->WriteNumeric(946, "%s %s :This user's nickname is not locked.",user->nick.c_str(),target->nick.c_str());
				return CMD_FAILURE;
			}
		}

		/* If we made it this far, the command is going out on the wire so send local snotice */
		ServerInstance->SNO->WriteToSnoMask('A', std::string(user->nick)+" used NICKUNLOCK on "+parameters[0]);

		if (target)
		{
			target->Shrink("nick_locked");
			if (IS_LOCAL(user))
				user->WriteNumeric(945, "%s %s :Nickname now unlocked.",user->nick.c_str(),target->nick.c_str());
		}

		/* Route it */
		return CMD_SUCCESS;
	}
};


class ModuleNickLock : public Module
{
	CommandNicklock*	cmd1;
	CommandNickunlock*	cmd2;
	char* n;
 public:
	ModuleNickLock(InspIRCd* Me)
		: Module(Me)
	{

		cmd1 = new CommandNicklock(ServerInstance);
		cmd2 = new CommandNickunlock(ServerInstance);
		ServerInstance->AddCommand(cmd1);
		ServerInstance->AddCommand(cmd2);
		Implementation eventlist[] = { I_OnUserPreNick, I_OnUserQuit, I_OnCleanup };
		ServerInstance->Modules->Attach(eventlist, this, 3);
	}

	virtual ~ModuleNickLock()
	{
	}

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


	virtual int OnUserPreNick(User* user, const std::string &newnick)
	{
		if (!IS_LOCAL(user))
			return 0;

		if (isdigit(newnick[0])) /* Allow a switch to a UID */
			return 0;

		if (user->GetExt("NICKForced")) /* Allow forced nick changes */
			return 0;

		if (user->GetExt("nick_locked", n))
		{
			user->WriteNumeric(447, "%s :You cannot change your nickname (your nick is locked)",user->nick.c_str());
			return 1;
		}
		return 0;
	}

	virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
	{
		user->Shrink("nick_locked");
	}

	void Prioritize()
	{
		Module *nflood = ServerInstance->Modules->Find("m_nickflood.so");
		ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIO_BEFORE, &nflood);
	}

	virtual void OnCleanup(int target_type, void* item)
	{
		if(target_type == TYPE_USER)
		{
			User* user = (User*)item;
			user->Shrink("nick_locked");
		}
	}
};

MODULE_INIT(ModuleNickLock)