summaryrefslogtreecommitdiff
path: root/src/modules/m_spanningtree/utils.h
blob: 3d34b93a6add6e6941cc0737fc7cfa965074d95b (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
/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
 *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
 *   Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
 *
 * This file is part of InspIRCd.  InspIRCd is free software: you can
 * redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, version 2.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */


#pragma once

#include "inspircd.h"
#include "cachetimer.h"

class TreeServer;
class TreeSocket;
class Link;
class Autoconnect;
class ModuleSpanningTree;
class SpanningTreeUtilities;
class CmdBuilder;

extern SpanningTreeUtilities* Utils;

/** Associative container type, mapping server names/ids to TreeServers
 */
typedef TR1NS::unordered_map<std::string, TreeServer*, irc::insensitive, irc::StrHashComp> server_hash;

/** Contains helper functions and variables for this module,
 * and keeps them out of the global namespace
 */
class SpanningTreeUtilities : public classbase
{
	CacheRefreshTimer RefreshTimer;

 public:
 	typedef std::set<TreeSocket*> TreeSocketSet;
	typedef std::map<TreeSocket*, std::pair<std::string, unsigned int> > TimeoutList;

	/** Creator module
	 */
	ModuleSpanningTree* Creator;

	/** Flatten links and /MAP for non-opers
	 */
	bool FlatLinks;
	/** Hide U-Lined servers in /MAP and /LINKS
	 */
	bool HideULines;
	/** Announce TS changes to channels on merge
	 */
	bool AnnounceTSChange;

	/** Allow modules marked as VF_OPTCOMMON to be mismatched when linking
	 */
	bool AllowOptCommon;

	/** Make snomasks +CQ quiet during bursts and splits
	 */
	bool quiet_bursts;

	/* Number of seconds that a server can go without ping
	 * before opers are warned of high latency.
	 */
	unsigned int PingWarnTime;
	/** This variable represents the root of the server tree
	 */
	TreeServer *TreeRoot;
	/** IPs allowed to link to us
	 */
	std::vector<std::string> ValidIPs;
	/** Hash of currently connected servers by name
	 */
	server_hash serverlist;
	/** Hash of currently known server ids
	 */
	server_hash sidlist;
	/** List of all outgoing sockets and their timeouts
	 */
	TimeoutList timeoutlist;
	/** Holds the data from the <link> tags in the conf
	 */
	std::vector<reference<Link> > LinkBlocks;
	/** Holds the data from the <autoconnect> tags in the conf
	 */
	std::vector<reference<Autoconnect> > AutoconnectBlocks;

	/** Ping frequency of server to server links
	 */
	unsigned int PingFreq;

	/** Initialise utility class
	 */
	SpanningTreeUtilities(ModuleSpanningTree* Creator);

	/** Prepare for class destruction
	 */
	CullResult cull() CXX11_OVERRIDE;

	/** Destroy class and free listeners etc
	 */
	~SpanningTreeUtilities();

	void RouteCommand(TreeServer* origin, CommandBase* cmd, const parameterlist& parameters, User* user);

	/** Send a message from this server to one other local or remote
	 */
	void DoOneToOne(const CmdBuilder& params, Server* target);

	/** Send a message from this server to all but one other, local or remote
	 */
	void DoOneToAllButSender(const CmdBuilder& params, TreeServer* omit);

	/** Send a message from this server to all others
	 */
	void DoOneToMany(const CmdBuilder& params);

	/** Read the spanningtree module's tags from the config file
	 */
	void ReadConfiguration();

	/** Handle nick collision
	 */
	bool DoCollision(User* u, TreeServer* server, time_t remotets, const std::string& remoteident, const std::string& remoteip, const std::string& remoteuid, const char* collidecmd);

	/** Compile a list of servers which contain members of channel c
	 */
	void GetListOfServersForChannel(Channel* c, TreeSocketSet& list, char status, const CUList& exempt_list);

	/** Find a server by name or SID
	 */
	TreeServer* FindServer(const std::string &ServerName);

	/** Find server by SID
	 */
	TreeServer* FindServerID(const std::string &id);

	/** Find a server based on a target string.
	 * @param target Target string where a command should be routed to. May be a server name, a sid, a nickname or a uuid.
	 */
	TreeServer* FindRouteTarget(const std::string& target);

	/** Find a server by glob mask
	 */
	TreeServer* FindServerMask(const std::string &ServerName);

	/** Find a link tag from a server name
	 */
	Link* FindLink(const std::string& name);

	/** Refresh the IP cache used for allowing inbound connections
	 */
	void RefreshIPCache();

	/** Sends a PRIVMSG or a NOTICE to a channel obeying an exempt list and an optional prefix
	 */
	void SendChannelMessage(const std::string& prefix, Channel* target, const std::string& text, char status, const CUList& exempt_list, const char* message_type, TreeSocket* omit = NULL);
};

inline void SpanningTreeUtilities::DoOneToMany(const CmdBuilder& params)
{
	DoOneToAllButSender(params, NULL);
}