prosody-modules
455a9b8fac27
mod_host_guard/mod_host_guard.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody-modules

Annotate

mod_host_guard/mod_host_guard.lua @ 726:455a9b8fac27

mod_host_guard: removed redundant cleanup code (tested it's completely unrequired).
author Marco Cirillo <maranda@lightwitch.org>
date Mon, 25 Jun 2012 23:53:40 +0000
parent 725:f79fda2d7e51
child 727:99f5846bcd85
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
493
b1b80319bbf6 mod_host_guard: renamed mod_component_guard to mod_host_guard, as it really works with all hosts, finally decided to wiki it out and not merge it with the s2s_blackwhitelisting module.
Marco Cirillo <maranda@lightwitch.org>
parents: 460
diff changeset
1 -- (C) 2011, Marco Cirillo (LW.Org)
519
219ffe3541ff mod_host_guard: updated banner.
Marco Cirillo <maranda@lightwitch.org>
parents: 515
diff changeset
2 -- Block or restrict by blacklist remote access to local components or hosts.
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
3
460
9bb9343f3c7a mod_component_guard: made module global, refactored init.
Marco Cirillo <maranda@lightwitch.org>
parents: 459
diff changeset
4 module:set_global()
9bb9343f3c7a mod_component_guard: made module global, refactored init.
Marco Cirillo <maranda@lightwitch.org>
parents: 459
diff changeset
5
493
b1b80319bbf6 mod_host_guard: renamed mod_component_guard to mod_host_guard, as it really works with all hosts, finally decided to wiki it out and not merge it with the s2s_blackwhitelisting module.
Marco Cirillo <maranda@lightwitch.org>
parents: 460
diff changeset
6 local guard_blockall = module:get_option_set("host_guard_blockall", {})
515
e98fe28c50b0 mod_host_guard: added exceptions/whitelisting to the blockall logic (makes little sense otherwise has s2s_disallow = true does the same)
Marco Cirillo <maranda@lightwitch.org>
parents: 494
diff changeset
7 local guard_ball_wl = module:get_option_set("host_guard_blockall_exceptions", {})
493
b1b80319bbf6 mod_host_guard: renamed mod_component_guard to mod_host_guard, as it really works with all hosts, finally decided to wiki it out and not merge it with the s2s_blackwhitelisting module.
Marco Cirillo <maranda@lightwitch.org>
parents: 460
diff changeset
8 local guard_protect = module:get_option_set("host_guard_selective", {})
b1b80319bbf6 mod_host_guard: renamed mod_component_guard to mod_host_guard, as it really works with all hosts, finally decided to wiki it out and not merge it with the s2s_blackwhitelisting module.
Marco Cirillo <maranda@lightwitch.org>
parents: 460
diff changeset
9 local guard_block_bl = module:get_option_set("host_guard_blacklist", {})
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
10
724
b94010de43f6 mod_host_guard: referenced configmanager from prosody's _G instead of requiring it.
Marco Cirillo <maranda@lightwitch.org>
parents: 686
diff changeset
11 local config = configmanager
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
12 local error_reply = require "util.stanza".error_reply
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
13
680
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
14 local function s2s_hook (event)
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
15 local origin, stanza = event.session or event.origin, event.stanza or false
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
16 local to_host, from_host = (not stanza and origin.to_host) or stanza.attr.to, (not stanza and origin.from_host) or stanza.attr.from
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
17
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
18 if origin.type == "s2sin" or origin.type == "s2sin_unauthed" then
680
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
19 if guard_blockall:contains(to_host) and not guard_ball_wl:contains(from_host) or
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
20 guard_block_bl:contains(from_host) and guard_protect:contains(to_host) then
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
21 module:log("error", "remote service %s attempted to access restricted host %s", from_host, to_host)
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
22 origin:close({condition = "policy-violation", text = "You're not authorized, good bye."})
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
23 return false
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
24 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
25 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
26
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
27 return nil
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
28 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
29
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
30 local function rr_hook (event)
685
19698c5f3ab3 mod_host_guard: prevent possible traces in case there isn't a conn object on the session by adding a dummy replacement function.
Marco Cirillo <maranda@lightwitch.org>
parents: 684
diff changeset
31 local from_host, to_host, send, stanza = event.from_host, event.to_host, (event.origin and event.origin.send) or function() end, event.stanza
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
32
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
33 if guard_blockall:contains(from_host) and not guard_ball_wl:contains(to_host) or
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
34 guard_block_bl:contains(to_host) and guard_protect:contains(from_host) then
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
35 module:log("info", "attempted to connect to a filtered remote host %s", to_host)
684
27529031890b mod_host_guard: now a proper error is returned when stanzas are routed to a filtered remote server (thanks Zash)
Marco Cirillo <maranda@lightwitch.org>
parents: 683
diff changeset
36 if stanza.attr.type ~= "error" then send(error_reply(event.stanza, "cancel", "policy-violation", "Communicating with a filtered remote server is not allowed.")) end
27529031890b mod_host_guard: now a proper error is returned when stanzas are routed to a filtered remote server (thanks Zash)
Marco Cirillo <maranda@lightwitch.org>
parents: 683
diff changeset
37 return true
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
38 end
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
39
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
40 return nil
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
41 end
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
42
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
43 local function handle_activation (host)
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
44 if guard_blockall:contains(host) or guard_protect:contains(host) then
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
45 if hosts[host] and hosts[host].events then
680
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
46 hosts[host].events.add_handler("s2sin-established", s2s_hook, 500)
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
47 hosts[host].events.add_handler("route/remote", rr_hook, 500)
680
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
48 hosts[host].events.add_handler("stanza/jabber:server:dialback:result", s2s_hook, 500)
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
49 module:log ("debug", "adding host protection for: "..host)
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
50 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
51 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
52 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
53
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
54 local function handle_deactivation (host)
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
55 if guard_blockall:contains(host) or guard_protect:contains(host) then
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
56 if hosts[host] and hosts[host].events then
680
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
57 hosts[host].events.remove_handler("s2sin-established", s2s_hook)
682
3ab1cf30a848 mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
Marco Cirillo <maranda@lightwitch.org>
parents: 681
diff changeset
58 hosts[host].events.remove_handler("route/remote", rr_hook)
680
a2cea070f2c7 mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents: 537
diff changeset
59 hosts[host].events.remove_handler("stanza/jabber:server:dialback:result", s2s_hook)
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
60 module:log ("debug", "removing host protection for: "..host)
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
61 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
62 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
63 end
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
64
537
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
65 local function init_hosts()
725
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
66 for n in pairs(hosts) do
537
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
67 if guard_blockall:contains(n) or guard_protect:contains(n) then handle_activation(n) end
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
68 end
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
69 end
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
70
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
71 local function reload()
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
72 module:log ("debug", "server configuration reloaded, rehashing plugin tables...")
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
73 guard_blockall = module:get_option_set("host_guard_blockall", {})
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
74 guard_ball_wl = module:get_option_set("host_guard_blockall_exceptions", {})
537
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
75 guard_protect = module:get_option_set("host_guard_selective", {})
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
76 guard_block_bl = module:get_option_set("host_guard_blacklist", {})
537
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
77
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
78 init_hosts()
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
79 end
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
80
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
81 local function setup()
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
82 module:log ("debug", "initializing host guard module...")
537
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
83 module:hook ("host-activated", handle_activation)
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
84 module:hook ("host-deactivated", handle_deactivation)
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
85 module:hook ("config-reloaded", reload)
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
86
537
50be30f203f3 mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents: 533
diff changeset
87 init_hosts()
456
73f06a14390a mod_component_guard: initial commit.
Marco Cirillo <maranda@lightwitch.org>
parents:
diff changeset
88 end
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
89
725
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
90 function module.unload()
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
91 module:log ("debug", "removing host handlers as module is being unloaded...")
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
92 for n in pairs(hosts) do
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
93 hosts[n].events.remove_handler("s2sin-established", s2s_hook)
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
94 hosts[n].events.remove_handler("route/remote", rr_hook)
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
95 hosts[n].events.remove_handler("stanza/jabber:server:dialback:result", s2s_hook)
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
96 end
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
97 end
f79fda2d7e51 mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
Marco Cirillo <maranda@lightwitch.org>
parents: 724
diff changeset
98
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
99 if prosody.start_time then
528
1737c08fde30 mod_host_guard: stick to one code "punctuation" style.
Marco Cirillo <maranda@lightwitch.org>
parents: 519
diff changeset
100 setup()
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
101 else
533
47b9053dba38 mod_host_guard: replaced prosody.events.add_handler with module:hook.
Marco Cirillo <maranda@lightwitch.org>
parents: 528
diff changeset
102 module:hook ("server-started", setup)
458
4149fcacbbf1 mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
Marco Cirillo <maranda@lightwitch.org>
parents: 457
diff changeset
103 end