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
|
/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
*
* 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/>.
*/
#include "inspircd.h"
#include "sql.h"
#include "hash.h"
/* $ModDesc: Allow/Deny connections based upon an arbitrary SQL table */
enum AuthState {
AUTH_STATE_NONE = 0,
AUTH_STATE_BUSY = 1,
AUTH_STATE_FAIL = 2
};
class AuthQuery : public SQLQuery
{
public:
const std::string uid;
LocalIntExt& pendingExt;
bool verbose;
AuthQuery(Module* me, const std::string& u, LocalIntExt& e, bool v)
: SQLQuery(me), uid(u), pendingExt(e), verbose(v)
{
}
void OnResult(SQLResult& res)
{
User* user = ServerInstance->FindNick(uid);
if (!user)
return;
if (res.Rows())
{
pendingExt.set(user, AUTH_STATE_NONE);
}
else
{
if (verbose)
ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s (SQL query returned no matches)", user->GetFullRealHost().c_str());
pendingExt.set(user, AUTH_STATE_FAIL);
}
}
void OnError(SQLerror& error)
{
User* user = ServerInstance->FindNick(uid);
if (!user)
return;
pendingExt.set(user, AUTH_STATE_FAIL);
if (verbose)
ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s (SQL query failed: %s)", user->GetFullRealHost().c_str(), error.Str());
}
};
class ModuleSQLAuth : public Module
{
LocalIntExt pendingExt;
dynamic_reference<SQLProvider> SQL;
std::string freeformquery;
std::string killreason;
std::string allowpattern;
bool verbose;
public:
ModuleSQLAuth() : pendingExt("sqlauth-wait", this), SQL(this, "SQL")
{
}
void init()
{
ServerInstance->Modules->AddService(pendingExt);
OnRehash(NULL);
Implementation eventlist[] = { I_OnUserDisconnect, I_OnCheckReady, I_OnRehash, I_OnUserRegister };
ServerInstance->Modules->Attach(eventlist, this, 4);
}
void OnRehash(User* user)
{
ConfigTag* conf = ServerInstance->Config->ConfValue("sqlauth");
std::string dbid = conf->getString("dbid");
if (dbid.empty())
SQL.SetProvider("SQL");
else
SQL.SetProvider("SQL/" + dbid);
freeformquery = conf->getString("query");
killreason = conf->getString("killreason");
allowpattern = conf->getString("allowpattern");
verbose = conf->getBool("verbose");
}
ModResult OnUserRegister(LocalUser* user)
{
// Note this is their initial (unresolved) connect block
ConfigTag* tag = user->MyClass->config;
if (!tag->getBool("usesqlauth", true))
return MOD_RES_PASSTHRU;
if (!allowpattern.empty() && InspIRCd::Match(user->nick,allowpattern))
return MOD_RES_PASSTHRU;
if (pendingExt.get(user))
return MOD_RES_PASSTHRU;
if (!SQL)
{
ServerInstance->SNO->WriteGlobalSno('a', "Forbiding connection from %s (SQL database not present)", user->GetFullRealHost().c_str());
ServerInstance->Users->QuitUser(user, killreason);
return MOD_RES_PASSTHRU;
}
pendingExt.set(user, AUTH_STATE_BUSY);
ParamM userinfo;
SQL->PopulateUserInfo(user, userinfo);
userinfo["pass"] = user->password;
HashProvider* md5 = ServerInstance->Modules->FindDataService<HashProvider>("hash/md5");
if (md5)
userinfo["md5pass"] = md5->hexsum(user->password);
HashProvider* sha256 = ServerInstance->Modules->FindDataService<HashProvider>("hash/sha256");
if (sha256)
userinfo["sha256pass"] = sha256->hexsum(user->password);
SQL->submit(new AuthQuery(this, user->uuid, pendingExt, verbose), freeformquery, userinfo);
return MOD_RES_PASSTHRU;
}
ModResult OnCheckReady(LocalUser* user)
{
switch (pendingExt.get(user))
{
case AUTH_STATE_NONE:
return MOD_RES_PASSTHRU;
case AUTH_STATE_BUSY:
return MOD_RES_DENY;
case AUTH_STATE_FAIL:
ServerInstance->Users->QuitUser(user, killreason);
return MOD_RES_DENY;
}
return MOD_RES_PASSTHRU;
}
Version GetVersion()
{
return Version("Allow/Deny connections based upon an arbitrary SQL table", VF_VENDOR);
}
};
MODULE_INIT(ModuleSQLAuth)
|
