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annotate mod_component_guard/mod_component_guard.lua @ 457:79ba4f95d65c

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mod_component_guard: missing hook priority.
author Marco Cirillo <maranda@lightwitch.org>
date Sat, 22 Oct 2011 19:30:43 +0000
parents 73f06a14390a
children 4149fcacbbf1
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73f06a14390a mod_component_guard: initial commit.
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1 -- Block or restrict by blacklist remote access to local components.
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2
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3 local guard_blockall = module:get_option_set("component_guard_blockall") -- blocks all s2s irregardless
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4 local guard_protect = module:get_option_set("component_guard_components") -- add hook for blacklisting check
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5 local guard_block_bl = module:get_option_set("component_guard_blacklist")
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6
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7 local s2smanager = require "core.s2smanager";
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8 local config = require "core.configmanager";
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9 local nameprep = require "util.encodings".stringprep.nameprep;
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10
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11 local _make_connect = s2smanager.make_connect;
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12 function s2smanager.make_connect(session, connect_host, connect_port)
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13 if not session.s2sValidation then
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14 if guard_blockall:contains(session.from_host) or guard_block_bl:contains(session.to_host) then
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15 module:log("error", "remote service %s attempted to access restricted component %s", session.to_host, session.from_host);
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16 s2smanager.destroy_session(session, "You're not authorized, good bye.");
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17 return false;
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18 end
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19 end
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20 return _make_connect(session, connect_host, connect_port);
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21 end
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22
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23 local _stream_opened = s2smanager.streamopened;
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24 function s2smanager.streamopened(session, attr)
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25 local host = attr.to and nameprep(attr.to);
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26 local from = attr.from and nameprep(attr.from);
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27 if not from then
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28 session.s2sValidation = false;
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29 else
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30 session.s2sValidation = true;
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31 end
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32
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33 if guard_blockall:contains(host) or
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34 guard_block_bl:contains(from) then
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35 module:log("error", "remote service %s attempted to access restricted component %s", from, host);
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36 session:close({condition = "policy-violation", text = "You're not authorized, good bye."});
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37 return false;
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38 end
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39 _stream_opened(session, attr);
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40 end
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41
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42 local function sdr_hook (event)
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43 local origin, stanza = event.origin, event.stanza;
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44
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45 if origin.type == "s2sin" or origin.type == "s2sin_unauthed" then
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46 if guard_blockall:contains(stanza.attr.to) or guard_block_bl:contains(stanza.attr.from) then
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47 module:log("error", "remote service %s attempted to access restricted component %s", stanza.attr.from, stanza.attr.to);
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48 origin:close({condition = "policy-violation", text = "You're not authorized, good bye."});
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49 return false;
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50 end
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51 end
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52
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53 return nil;
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54 end
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55
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56 local function handle_activation (host)
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57 if guard_blockall:contains(host) or guard_protect:contains(host) then
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58 if hosts[host] and hosts[host].events then
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59 hosts[host].events.add_handler("stanza/jabber:server:dialback:result", sdr_hook, 100);
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60 module:log ("debug", "adding component protection for: "..host);
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61 end
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62 end
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63 end
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64
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65 local function handle_deactivation (host)
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66 if guard_blockall:contains(host) or guard_protect:contains(host) then
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67 if hosts[host] and hosts[host].events then
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68 hosts[host].events.remove_handler("stanza/jabber:server:dialback:result", sdr_hook);
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69 module:log ("debug", "removing component protection for: "..host);
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70 end
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71 end
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72 end
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73
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74 prosody.events.add_handler("component-activated", handle_activation);
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75 prosody.events.add_handler("component-deactivated", handle_deactivation);
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76
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77 for n,table in pairs(hosts) do
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78 if table.type == "component" then
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79 if guard_blockall:contains(n) or guard_protect:contains(n) then
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80 handle_activation(n);
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81 end
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82 end
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83 end