Software / code / prosody-modules
Annotate
mod_host_guard/mod_host_guard.lua @ 785:e781e63a49f4
mod_pubsub_hub: Fix calculating next periodic check of subscriptions.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Tue, 07 Aug 2012 01:51:42 +0200 |
| parent | 729:ce8e7b784be0 |
| child | 815:b16b291d68c3 |
| 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
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changeset
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1 -- (C) 2011, Marco Cirillo (LW.Org) |
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519
219ffe3541ff
mod_host_guard: updated banner.
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515
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2 -- Block or restrict by blacklist remote access to local components or hosts. |
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456
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3 |
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460
9bb9343f3c7a
mod_component_guard: made module global, refactored init.
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4 module:set_global() |
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5 |
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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
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6 local guard_blockall = module:get_option_set("host_guard_blockall", {}) |
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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>
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494
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7 local guard_ball_wl = module:get_option_set("host_guard_blockall_exceptions", {}) |
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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
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9 local guard_block_bl = module:get_option_set("host_guard_blacklist", {}) |
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456
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10 |
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724
b94010de43f6
mod_host_guard: referenced configmanager from prosody's _G instead of requiring it.
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686
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11 local config = configmanager |
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682
3ab1cf30a848
mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
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681
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12 local error_reply = require "util.stanza".error_reply |
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13 |
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680
a2cea070f2c7
mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
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parents:
537
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14 local function s2s_hook (event) |
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mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
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15 local origin, stanza = event.session or event.origin, event.stanza or false |
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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 |
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17 |
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18 if origin.type == "s2sin" or origin.type == "s2sin_unauthed" then |
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680
a2cea070f2c7
mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
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parents:
537
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19 if guard_blockall:contains(to_host) and not guard_ball_wl:contains(from_host) or |
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a2cea070f2c7
mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents:
537
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20 guard_block_bl:contains(from_host) and guard_protect:contains(to_host) then |
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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
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21 module:log("error", "remote service %s attempted to access restricted host %s", from_host, to_host) |
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528
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mod_host_guard: stick to one code "punctuation" style.
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parents:
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22 origin:close({condition = "policy-violation", text = "You're not authorized, good bye."}) |
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23 return false |
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24 end |
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mod_component_guard: initial commit.
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25 end |
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mod_component_guard: initial commit.
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26 |
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528
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mod_host_guard: stick to one code "punctuation" style.
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parents:
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27 return nil |
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28 end |
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parents:
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29 |
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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
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30 local function rr_hook (event) |
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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
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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 |
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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
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32 |
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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
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33 if guard_blockall:contains(from_host) and not guard_ball_wl:contains(to_host) or |
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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
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34 guard_block_bl:contains(to_host) and guard_protect:contains(from_host) then |
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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
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35 module:log("info", "attempted to connect to a filtered remote host %s", to_host) |
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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
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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 |
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mod_host_guard: now a proper error is returned when stanzas are routed to a filtered remote server (thanks Zash)
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parents:
683
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37 return true |
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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
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38 end |
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mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
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parents:
681
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39 |
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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
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40 return nil |
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mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
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parents:
681
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41 end |
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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
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42 |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
Marco Cirillo <maranda@lightwitch.org>
parents:
727
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43 local function handle_activation (host, u) |
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456
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parents:
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44 if guard_blockall:contains(host) or guard_protect:contains(host) then |
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parents:
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45 if hosts[host] and hosts[host].events then |
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680
a2cea070f2c7
mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
Marco Cirillo <maranda@lightwitch.org>
parents:
537
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46 hosts[host].events.add_handler("s2sin-established", s2s_hook, 500) |
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682
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mod_host_guard: using route/remote event hook to stop outgoing connections to filtered entities, yet the returned error is highly misleading.
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parents:
681
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47 hosts[host].events.add_handler("route/remote", rr_hook, 500) |
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a2cea070f2c7
mod_host_guard: removed calls to s2smanager and made the module not dependant on it.
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parents:
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48 hosts[host].events.add_handler("stanza/jabber:server:dialback:result", s2s_hook, 500) |
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8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
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parents:
727
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49 if not u then |
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727
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50 module:log ("debug", "adding host protection for: "..host) |
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mod_host_guard: reduced code duplication and added better logging.
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51 else |
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729
ce8e7b784be0
mod_host_guard: adjusted log message.
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728
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52 module:log ("debug", "updating or adding host protection for: "..host) |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
Marco Cirillo <maranda@lightwitch.org>
parents:
727
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53 end |
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54 end |
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55 end |
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56 end |
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57 |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
Marco Cirillo <maranda@lightwitch.org>
parents:
727
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58 local function handle_deactivation (host, u, i) |
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59 if guard_blockall:contains(host) or guard_protect:contains(host) then |
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parents:
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changeset
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60 if hosts[host] and hosts[host].events then |
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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
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61 hosts[host].events.remove_handler("s2sin-established", s2s_hook) |
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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
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62 hosts[host].events.remove_handler("route/remote", rr_hook) |
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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
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63 hosts[host].events.remove_handler("stanza/jabber:server:dialback:result", s2s_hook) |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
Marco Cirillo <maranda@lightwitch.org>
parents:
727
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64 if not u and not i then module:log ("debug", "removing host protection for: "..host) end |
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65 end |
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66 end |
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67 end |
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68 |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
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parents:
727
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69 local function init_hosts(u, i) |
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725
f79fda2d7e51
mod_host_guard: host handlers are now cleaned properly on module unload (and also still on re/load to be safe).
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724
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70 for n in pairs(hosts) do |
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727
99f5846bcd85
mod_host_guard: during configuration reload the host handlers should be reinitialized as well, so reverted changed and added back the "redundant code".
Marco Cirillo <maranda@lightwitch.org>
parents:
726
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71 if guard_blockall:contains(n) or guard_protect:contains(n) then |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
Marco Cirillo <maranda@lightwitch.org>
parents:
727
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72 handle_deactivation(n, u, i) |
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73 handle_activation(n, u) |
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727
99f5846bcd85
mod_host_guard: during configuration reload the host handlers should be reinitialized as well, so reverted changed and added back the "redundant code".
Marco Cirillo <maranda@lightwitch.org>
parents:
726
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74 end |
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537
50be30f203f3
mod_host_guard: fixed plugin, minor code refactor.
Marco Cirillo <maranda@lightwitch.org>
parents:
533
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75 end |
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76 end |
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parents:
533
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77 |
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458
4149fcacbbf1
mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
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457
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78 local function reload() |
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mod_host_guard: stick to one code "punctuation" style.
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79 module:log ("debug", "server configuration reloaded, rehashing plugin tables...") |
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mod_host_guard: stick to one code "punctuation" style.
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parents:
519
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80 guard_blockall = module:get_option_set("host_guard_blockall", {}) |
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mod_host_guard: stick to one code "punctuation" style.
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parents:
519
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81 guard_ball_wl = module:get_option_set("host_guard_blockall_exceptions", {}) |
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537
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parents:
533
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82 guard_protect = module:get_option_set("host_guard_selective", {}) |
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528
1737c08fde30
mod_host_guard: stick to one code "punctuation" style.
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parents:
519
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83 guard_block_bl = module:get_option_set("host_guard_blacklist", {}) |
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mod_host_guard: fixed plugin, minor code refactor.
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parents:
533
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84 |
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728
8ad2e24f5efd
mod_host_guard: reduced code duplication and added better logging.
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parents:
727
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85 init_hosts(true) |
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86 end |
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mod_component_guard: refactored init code, added reloading logic to prevent events pollution with stale dupes.
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parents:
457
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87 |
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88 local function setup() |
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528
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89 module:log ("debug", "initializing host guard module...") |
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mod_host_guard: fixed plugin, minor code refactor.
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parents:
533
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90 module:hook ("host-activated", handle_activation) |
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91 module:hook ("host-deactivated", handle_deactivation) |
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mod_host_guard: stick to one code "punctuation" style.
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parents:
519
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92 module:hook ("config-reloaded", reload) |
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93 |
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728
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parents:
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94 init_hosts(false, true) |
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95 end |
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96 |
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97 function module.unload() |
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98 module:log ("debug", "removing host handlers as module is being unloaded...") |
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99 for n in pairs(hosts) do |
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100 hosts[n].events.remove_handler("s2sin-established", s2s_hook) |
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101 hosts[n].events.remove_handler("route/remote", rr_hook) |
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102 hosts[n].events.remove_handler("stanza/jabber:server:dialback:result", s2s_hook) |
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103 end |
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104 end |
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105 |
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106 if prosody.start_time then |
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107 setup() |
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108 else |
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109 module:hook ("server-started", setup) |
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110 end |
