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
|
/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013 Daniel Vassdal <shutter@canternet.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"
class FlashPDSocket;
namespace
{
insp::intrusive_list<FlashPDSocket> sockets;
std::string policy_reply;
const std::string expected_request("<policy-file-request/>\0", 23);
}
class FlashPDSocket : public BufferedSocket, public Timer, public insp::intrusive_list_node<FlashPDSocket>
{
/** True if this object is in the cull list
*/
bool waitingcull;
bool Tick(time_t currtime) CXX11_OVERRIDE
{
AddToCull();
return false;
}
public:
FlashPDSocket(int newfd, unsigned int timeoutsec)
: BufferedSocket(newfd)
, Timer(timeoutsec)
, waitingcull(false)
{
ServerInstance->Timers.AddTimer(this);
}
~FlashPDSocket()
{
sockets.erase(this);
}
void OnError(BufferedSocketError) CXX11_OVERRIDE
{
AddToCull();
}
void OnDataReady() CXX11_OVERRIDE
{
if (recvq == expected_request)
WriteData(policy_reply);
AddToCull();
}
void AddToCull()
{
if (waitingcull)
return;
waitingcull = true;
Close();
ServerInstance->GlobalCulls.AddItem(this);
}
};
class ModuleFlashPD : public Module
{
unsigned int timeout;
public:
ModResult OnAcceptConnection(int nfd, ListenSocket* from, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server) CXX11_OVERRIDE
{
if (from->bind_tag->getString("type") != "flashpolicyd")
return MOD_RES_PASSTHRU;
if (policy_reply.empty())
return MOD_RES_DENY;
sockets.push_front(new FlashPDSocket(nfd, timeout));
return MOD_RES_ALLOW;
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
ConfigTag* tag = ServerInstance->Config->ConfValue("flashpolicyd");
timeout = tag->getInt("timeout", 5, 1);
std::string file = tag->getString("file");
if (!file.empty())
{
try
{
FileReader reader(file);
policy_reply = reader.GetString();
}
catch (CoreException&)
{
const std::string error_message = "A file was specified for FlashPD, but it could not be loaded.";
ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, error_message);
ServerInstance->SNO->WriteGlobalSno('a', error_message);
policy_reply.clear();
}
return;
}
// A file was not specified. Set the default setting.
// We allow access to all client ports by default
std::string to_ports;
for (std::vector<ListenSocket*>::const_iterator i = ServerInstance->ports.begin(); i != ServerInstance->ports.end(); ++i)
{
ListenSocket* ls = *i;
if (ls->bind_tag->getString("type", "clients") != "clients" || ls->bind_tag->getString("ssl", "plaintext") != "plaintext")
continue;
to_ports.append(ConvToStr(ls->bind_port)).push_back(',');
}
if (to_ports.empty())
{
policy_reply.clear();
return;
}
to_ports.erase(to_ports.size() - 1);
policy_reply =
"<?xml version=\"1.0\"?>\
<!DOCTYPE cross-domain-policy SYSTEM \"/xml/dtds/cross-domain-policy.dtd\">\
<cross-domain-policy>\
<site-control permitted-cross-domain-policies=\"master-only\"/>\
<allow-access-from domain=\"*\" to-ports=\"" + to_ports + "\" />\
</cross-domain-policy>";
}
CullResult cull() CXX11_OVERRIDE
{
for (insp::intrusive_list<FlashPDSocket>::const_iterator i = sockets.begin(); i != sockets.end(); ++i)
{
FlashPDSocket* sock = *i;
sock->AddToCull();
}
return Module::cull();
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Flash Policy Daemon. Allows Flash IRC clients to connect", VF_VENDOR);
}
};
MODULE_INIT(ModuleFlashPD)
|
