summaryrefslogtreecommitdiff
path: root/src/modules/m_hostchange.cpp
blob: 17c597e7153dcd52b46350a87b49a659c4960dca (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
/*       +------------------------------------+
 *       | 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.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"
#include "wildcard.h"

/* $ModDesc: Provides masking of user hostnames in a different way to m_cloaking */

/** Holds information on a host set by m_hostchange
 */
class Host : public classbase
{
 public:
	std::string action;
	std::string newhost;
	std::string ports;
};

typedef std::map<std::string,Host*> hostchanges_t;

class ModuleHostChange : public Module
{
 private:
	hostchanges_t hostchanges;
	std::string MySuffix;
	std::string MyPrefix;
	std::string MySeparator;
	 
 public:
	ModuleHostChange(InspIRCd* Me)
		: Module(Me)
	{
		OnRehash(NULL,"");
	}
	
	virtual ~ModuleHostChange()
	{
		for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
		{
			DELETE(i->second);
		}
		hostchanges.clear();
	}

	Priority Prioritize()
	{
		return (Priority)ServerInstance->Modules->PriorityAfter("m_cloaking.so");
	}

	void Implements(char* List)
	{
		List[I_OnRehash] = List[I_OnUserConnect] = 1;
	}

	virtual void OnRehash(User* user, const std::string &parameter)
	{
		ConfigReader Conf(ServerInstance);
		MySuffix = Conf.ReadValue("host","suffix",0);
		MyPrefix = Conf.ReadValue("host","prefix","",0);
		MySeparator = Conf.ReadValue("host","separator",".",0);
		for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
		{
			DELETE(i->second);
		}
		hostchanges.clear();
		for (int index = 0; index < Conf.Enumerate("hostchange"); index++)
		{
			std::string mask = Conf.ReadValue("hostchange", "mask", index);
			std::string ports = Conf.ReadValue("hosthange", "ports", index);
			std::string action = Conf.ReadValue("hostchange", "action", index);
			std::string newhost = Conf.ReadValue("hostchange", "value", index);
			Host* x = new Host;
			x->action = action;
			x->ports = ports;
			x->newhost = newhost;
			hostchanges[mask] = x;
		}
	}
	
	virtual Version GetVersion()
	{
		// returns the version number of the module to be
		// listed in /MODULES
		return Version(1,1,0,1,VF_VENDOR,API_VERSION);
	}
	
	virtual void OnUserConnect(User* user)
	{
		for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
		{
			if (((match(user->MakeHost(),i->first.c_str(),true)) || (match(user->MakeHostIP(),i->first.c_str()))))
			{
				Host* h = i->second;

				if (!h->ports.empty())
				{
					irc::portparser portrange(h->ports, false);
					long portno = -1;
					bool foundany = false;

					while ((portno = portrange.GetToken()))
						if (portno == user->GetPort())
							foundany = true;

					if (!foundany)
						continue;
				}

				// host of new user matches a hostchange tag's mask
				std::string newhost;
				if (h->action == "set")
				{
					newhost = h->newhost;
				}
				else if (h->action == "suffix")
				{
					newhost = MySuffix;
				}
				else if (h->action == "addnick")
				{
					// first take their nick and strip out non-dns, leaving just [A-Z0-9\-]
					std::string complete;
					std::string old = user->nick;
					for (unsigned int j = 0; j < old.length(); j++)
					{
						if  (((old[j] >= 'A') && (old[j] <= 'Z')) ||
						    ((old[j] >= 'a') && (old[j] <= 'z')) ||
						    ((old[j] >= '0') && (old[j] <= '9')) ||
						    (old[j] == '-'))
						{
							complete = complete + old[j];
						}
					}
					if (complete.empty())
						complete = "i-have-a-lame-nick";
						
					if (!MyPrefix.empty())
						newhost = MyPrefix + MySeparator + complete;
					else
						newhost = complete + MySeparator + MySuffix;
				}
				if (!newhost.empty())
				{
					user->WriteServ("NOTICE "+std::string(user->nick)+" :Setting your virtual host: " + newhost);
					if (!user->ChangeDisplayedHost(newhost.c_str()))
						user->WriteServ("NOTICE "+std::string(user->nick)+" :Could not set your virtual host: " + newhost);
					return;
				}
			}
		}
	}
};

MODULE_INIT(ModuleHostChange)