summaryrefslogtreecommitdiff
path: root/src/modules/m_swhois.cpp
blob: cf14be3e1dde68e4dc12cf4e8fad90765b9f636e (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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
/*       +------------------------------------+
 *       | 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"

/* $ModDesc: Provides the SWHOIS command which allows setting of arbitary WHOIS lines */

/** Handle /SWHOIS
 */
class CommandSwhois : public Command
{

 public:
	CommandSwhois (InspIRCd* Instance, Module* Creator) : Command(Instance, Creator,"SWHOIS","o",2, 2)
	{
		syntax = "<nick> :<swhois>";
		TRANSLATE3(TR_NICK, TR_TEXT, TR_END);
	}

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

		if (!dest)
		{
			user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), parameters[0].c_str());
			return CMD_FAILURE;
		}

		std::string* text;
		if (dest->GetExt("swhois", text))
		{
			// We already had it set...
			if (!ServerInstance->ULine(user->server))
				// Ulines set SWHOISes silently
				ServerInstance->SNO->WriteGlobalSno('a', "%s used SWHOIS to set %s's extra whois from '%s' to '%s'", user->nick.c_str(), dest->nick.c_str(), text->c_str(), parameters[1].c_str());

			dest->Shrink("swhois");
			delete text;
		}
		else if (!ServerInstance->ULine(user->server))
		{
			// Ulines set SWHOISes silently
			ServerInstance->SNO->WriteGlobalSno('a', "%s used SWHOIS to set %s's extra whois to '%s'", user->nick.c_str(), dest->nick.c_str(), parameters[1].c_str());
		}

		text = new std::string(parameters[1]);
		dest->Extend("swhois", text);

		/* Bug #376 - feature request -
		 * To cut down on the amount of commands services etc have to recognise, this only sends METADATA across the network now
		 * not an actual SWHOIS command. Any SWHOIS command sent from services will be automatically translated to METADATA by this.
		 * Sorry w00t i know this was your fix, but i got bored and wanted to clear down the tracker :)
		 * -- Brain
		 */
		ServerInstance->PI->SendMetaData(dest, "swhois", *text);

		// If it's an empty swhois, unset it (not ideal, but ok)
		if (text->empty())
		{
			dest->Shrink("swhois");
			delete text;
		}

		return CMD_LOCALONLY;
	}

};

class ModuleSWhois : public Module
{
	CommandSwhois cmd;

	ConfigReader* Conf;

 public:
	ModuleSWhois(InspIRCd* Me) : Module(Me), cmd(Me, this)
	{

		Conf = new ConfigReader(ServerInstance);
		ServerInstance->AddCommand(&cmd);
		Implementation eventlist[] = { I_OnDecodeMetaData, I_OnWhoisLine, I_OnSyncUser, I_OnUserQuit, I_OnCleanup, I_OnRehash, I_OnPostCommand };
		ServerInstance->Modules->Attach(eventlist, this, 7);
	}

	void OnRehash(User* user)
	{
		delete Conf;
		Conf = new ConfigReader(ServerInstance);
	}


	// :kenny.chatspike.net 320 Brain Azhrarn :is getting paid to play games.
	ModResult OnWhoisLine(User* user, User* dest, int &numeric, std::string &text)
	{
		/* We use this and not OnWhois because this triggers for remote, too */
		if (numeric == 312)
		{
			/* Insert our numeric before 312 */
			std::string* swhois;
			if (dest->GetExt("swhois", swhois))
			{
				ServerInstance->SendWhoisLine(user, dest, 320, "%s %s :%s",user->nick.c_str(), dest->nick.c_str(), swhois->c_str());
			}
		}

		/* Dont block anything */
		return MOD_RES_PASSTHRU;
	}

	// Whenever the linking module wants to send out data, but doesnt know what the data
	// represents (e.g. it is metadata, added to a User or Channel by a module) then
	// this method is called. We should use the ProtoSendMetaData function after we've
	// corrected decided how the data should look, to send the metadata on its way if
	// it is ours.
	virtual void OnSyncUser(User* user, Module* proto, void* opaque)
	{
		// check if this user has an swhois field to send
		std::string* swhois;
		if (user->GetExt("swhois", swhois))
			proto->ProtoSendMetaData(opaque,user,"swhois",*swhois);
	}

	// when a user quits, tidy up their metadata
	virtual void OnUserQuit(User* user, const std::string &message, const std::string &oper_message)
	{
		std::string* swhois;
		if (user->GetExt("swhois", swhois))
		{
			user->Shrink("swhois");
			delete swhois;
		}
	}

	// if the module is unloaded, tidy up all our dangling metadata
	virtual void OnCleanup(int target_type, void* item)
	{
		if (target_type != TYPE_USER) return;
		User* user = static_cast<User*>(item);
		std::string* swhois;
		if (user && user->GetExt("swhois", swhois))
		{
			user->Shrink("swhois");
			delete swhois;
		}
	}

	// Whenever the linking module receives metadata from another server and doesnt know what
	// to do with it (of course, hence the 'meta') it calls this method, and it is up to each
	// module in turn to figure out if this metadata key belongs to them, and what they want
	// to do with it.
	// In our case we're only sending a single string around, so we just construct a std::string.
	// Some modules will probably get much more complex and format more detailed structs and classes
	// in a textual way for sending over the link.
	virtual void OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata)
	{
		User* dest = dynamic_cast<User*>(target);
		// check if its our metadata key, and its associated with a user
		if (extname != "swhois" || !dest)
			return;

		// if they already have an swhois field, trash it and replace it with the remote one.
		std::string* text;
		if (dest->GetExt("swhois", text))
		{
			dest->Shrink("swhois");
			delete text;
		}

		if (extdata.empty())
			return;

		text = new std::string(extdata);
		dest->Extend("swhois", text);
	}

	virtual void OnPostCommand(const std::string &command, const std::vector<std::string> &params, User *user, CmdResult result, const std::string &original_line)
	{
		if ((command != "OPER") || (result != CMD_SUCCESS))
			return;

		std::string swhois;

		for (int i = 0; i < Conf->Enumerate("oper"); i++)
		{
			std::string name = Conf->ReadValue("oper", "name", i);

			if (name == params[0])
			{
				swhois = Conf->ReadValue("oper", "swhois", i);
				break;
			}
		}

		if (!swhois.length())
		{
			for (int i = 0; i < Conf->Enumerate("type"); i++)
			{
				std::string type = Conf->ReadValue("type", "name", i);

				if (type == user->oper)
				{
					swhois = Conf->ReadValue("type", "swhois", i);
					break;
				}
			}
		}

		std::string *old;
		if (user->GetExt("swhois", old))
		{
			user->Shrink("swhois");
			delete old;
		}

		if (!swhois.length())
			return;

		std::string *text = new std::string(swhois);
		user->Extend("swhois", text);
		ServerInstance->PI->SendMetaData(user, "swhois", *text);
	}

	virtual ~ModuleSWhois()
	{
		delete Conf;
	}

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

MODULE_INIT(ModuleSWhois)