prosody
5a09c1166d89
plugins/mod_blocklist.lua

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plugins/mod_blocklist.lua @ 7618:5a09c1166d89

configure: Add --compiler-wrapper flag for using things like ccache or distcc
author Kim Alvefur <zash@zash.se>
date Fri, 19 Aug 2016 16:25:15 +0200
parent 7079:f094683ae6eb
child 7620:c27c9695d130
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 -- Prosody IM
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2 -- Copyright (C) 2009-2010 Matthew Wild
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3 -- Copyright (C) 2009-2010 Waqas Hussain
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4 -- Copyright (C) 2014-2015 Kim Alvefur
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9 -- This module implements XEP-0191: Blocking Command
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10 --
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11
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12 local user_exists = require"core.usermanager".user_exists;
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13 local rostermanager = require"core.rostermanager";
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14 local is_contact_subscribed = rostermanager.is_contact_subscribed;
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15 local is_contact_pending_in = rostermanager.is_contact_pending_in;
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16 local load_roster = rostermanager.load_roster;
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17 local save_roster = rostermanager.save_roster;
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18 local st = require"util.stanza";
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19 local st_error_reply = st.error_reply;
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20 local jid_prep = require"util.jid".prep;
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21 local jid_split = require"util.jid".split;
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22
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23 local storage = module:open_store();
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24 local sessions = prosody.hosts[module.host].sessions;
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25
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26 -- First level cache of blocklists by username.
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27 -- Weak table so may randomly expire at any time.
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28 local cache = setmetatable({}, { __mode = "v" });
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29
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30 -- Second level of caching, keeps a fixed number of items, also anchors
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31 -- items in the above cache.
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32 --
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33 -- The size of this affects how often we will need to load a blocklist from
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34 -- disk, which we want to avoid during routing. On the other hand, we don't
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35 -- want to use too much memory either, so this can be tuned by advanced
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36 -- users. TODO use science to figure out a better default, 64 is just a guess.
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37 local cache_size = module:get_option_number("blocklist_cache_size", 64);
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38 local cache2 = require"util.cache".new(cache_size);
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39
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40 local null_blocklist = {};
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41
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42 module:add_feature("urn:xmpp:blocking");
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43
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44 local function set_blocklist(username, blocklist)
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45 local ok, err = storage:set(username, blocklist);
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46 if not ok then
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47 return ok, err;
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48 end
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49 -- Successful save, update the cache
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50 cache2:set(username, blocklist);
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51 cache[username] = blocklist;
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52 return true;
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53 end
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54
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55 -- Migrates from the old mod_privacy storage
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56 local function migrate_privacy_list(username)
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57 local migrated_data = { [false] = "not empty" };
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58 local legacy_data = module:open_store("privacy"):get(username);
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59 if legacy_data and legacy_data.lists and legacy_data.default then
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60 legacy_data = legacy_data.lists[legacy_data.default];
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61 legacy_data = legacy_data and legacy_data.items;
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62 else
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63 return migrated_data;
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64 end
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65 if legacy_data then
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66 module:log("info", "Migrating blocklist from mod_privacy storage for user '%s'", username);
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67 local item, jid;
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68 for i = 1, #legacy_data do
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69 item = legacy_data[i];
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70 if item.type == "jid" and item.action == "deny" then
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71 jid = jid_prep(item.value);
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72 if not jid then
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73 module:log("warn", "Invalid JID in privacy store for user '%s' not migrated: %s", username, tostring(item.value));
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74 else
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75 migrated_data[jid] = true;
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76 end
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77 end
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78 end
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79 end
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80 set_blocklist(username, migrated_data);
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81 return migrated_data;
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82 end
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83
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84 local function get_blocklist(username)
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85 local blocklist = cache[username];
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86 if not blocklist then
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87 blocklist = cache2:get(username);
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88 end
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89 if not blocklist then
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90 if not user_exists(username, module.host) then
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91 return null_blocklist;
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92 end
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93 blocklist = storage:get(username);
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94 if not blocklist then
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95 blocklist = migrate_privacy_list(username);
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96 end
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97 cache2:set(username, blocklist);
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98 end
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99 cache[username] = blocklist;
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100 return blocklist;
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101 end
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102
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103 module:hook("iq-get/self/urn:xmpp:blocking:blocklist", function (event)
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104 local origin, stanza = event.origin, event.stanza;
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105 local username = origin.username;
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106 local reply = st.reply(stanza):tag("blocklist", { xmlns = "urn:xmpp:blocking" });
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107 local blocklist = get_blocklist(username);
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108 for jid in pairs(blocklist) do
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109 if jid then
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110 reply:tag("item", { jid = jid }):up();
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111 end
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112 end
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113 origin.interested_blocklist = true; -- Gets notified about changes
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114 origin.send(reply);
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115 return true;
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116 end);
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117
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118 -- Add or remove some jid(s) from the blocklist
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
119 -- We want this to be atomic and not do a partial update
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
120 local function edit_blocklist(event)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
121 local origin, stanza = event.origin, event.stanza;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
122 local username = origin.username;
6971
96080d86bab8 mod_blocklist: Add comments describing some variables
Kim Alvefur <zash@zash.se>
parents: 6970
diff changeset
123 local action = stanza.tags[1]; -- "block" or "unblock"
6975
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
124 local is_blocking = action.name == "block" or nil; -- nil if unblocking
6971
96080d86bab8 mod_blocklist: Add comments describing some variables
Kim Alvefur <zash@zash.se>
parents: 6970
diff changeset
125 local new = {}; -- JIDs to block depending or unblock on action
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
126
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
127 -- XEP-0191 sayeth:
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
128 -- > When the user blocks communications with the contact, the user's
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
129 -- > server MUST send unavailable presence information to the contact (but
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
130 -- > only if the contact is allowed to receive presence notifications [...]
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
131 -- So contacts we need to do that for are added to the set below.
6975
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
132 local send_unavailable = is_blocking and {};
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
133
6974
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Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
134 -- Because blocking someone currently also blocks the ability to reject
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
135 -- subscription requests, we'll preemptively reject such
6975
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
136 local remove_pending = is_blocking and {};
6974
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
137
6352
b703e6930e4c mod_blocklist: Use full word as variable name, we can afford that
Kim Alvefur <zash@zash.se>
parents: 6351
diff changeset
138 for item in action:childtags("item") do
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
139 local jid = jid_prep(item.attr.jid);
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
140 if not jid then
6833
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
141 origin.send(st_error_reply(stanza, "modify", "jid-malformed"));
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
142 return true;
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144 item.attr.jid = jid; -- echo back prepped
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
145 new[jid] = true;
6975
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
146 if is_blocking then
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
147 if is_contact_subscribed(username, module.host, jid) then
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
148 send_unavailable[jid] = true;
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
149 elseif is_contact_pending_in(username, module.host, jid) then
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
150 remove_pending[jid] = true;
5bc229eb99d3 mod_blocklist: Skip creating some tables and some processing if unblocking
Kim Alvefur <zash@zash.se>
parents: 6974
diff changeset
151 end
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
152 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
153 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
154
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
155 if is_blocking and not next(new) then
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
156 -- <block/> element does not contain at least one <item/> child element
6833
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
157 origin.send(st_error_reply(stanza, "modify", "bad-request"));
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
158 return true;
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
159 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
160
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
161 local blocklist = get_blocklist(username);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
162
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
163 local new_blocklist = {};
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
165 if is_blocking or next(new) then
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
166 for jid in pairs(blocklist) do
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
167 new_blocklist[jid] = true;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
168 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 for jid in pairs(new) do
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
170 new_blocklist[jid] = is_blocking;
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 -- else empty the blocklist
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 new_blocklist[false] = "not empty"; -- In order to avoid doing the migration thing twice
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 local ok, err = set_blocklist(username, new_blocklist);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
177 if ok then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
178 origin.send(st.reply(stanza));
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
179 else
6833
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
180 origin.send(st_error_reply(stanza, "wait", "internal-server-error", err));
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
181 return true;
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
184 if is_blocking then
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
185 for jid in pairs(send_unavailable) do
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
186 if not blocklist[jid] then
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
187 for _, session in pairs(sessions[username].sessions) do
6495
44df423f8290 mod_blocklist: Don't send unavailable presence from unavailable sessions when blocking a contact
Kim Alvefur <zash@zash.se>
parents: 6494
diff changeset
188 if session.presence then
44df423f8290 mod_blocklist: Don't send unavailable presence from unavailable sessions when blocking a contact
Kim Alvefur <zash@zash.se>
parents: 6494
diff changeset
189 module:send(st.presence({ type = "unavailable", to = jid, from = session.full_jid }));
44df423f8290 mod_blocklist: Don't send unavailable presence from unavailable sessions when blocking a contact
Kim Alvefur <zash@zash.se>
parents: 6494
diff changeset
190 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
191 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
192 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
193 end
6974
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
194
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
195 if next(remove_pending) then
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
196 local roster = load_roster(username, module.host);
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
197 for jid in pairs(remove_pending) do
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
198 roster[false].pending[jid] = nil;
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
199 end
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
200 save_roster(username, module.host, roster);
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
201 -- Not much we can do about save failing here
bdb216e0688a mod_blocklist: When blocking someone who sent a subscription request, forget that request since the user would be unable to deny it while blocked (Fixes #574)
Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
202 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 end
6972
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
204
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
205 local blocklist_push = st.iq({ type = "set", id = "blocklist-push" })
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
206 :add_child(action); -- I am lazy
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
207
6972
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
208 for _, session in pairs(sessions[username].sessions) do
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
209 if session.interested_blocklist then
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
210 blocklist_push.attr.to = session.full_jid;
9e926e48cbf9 mod_blocklist: session[username] can't possibly be unset if that user is sending queries
Kim Alvefur <zash@zash.se>
parents: 6971
diff changeset
211 session.send(blocklist_push);
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
212 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
213 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
214
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
215 return true;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
216 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
217
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218 module:hook("iq-set/self/urn:xmpp:blocking:block", edit_blocklist);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 module:hook("iq-set/self/urn:xmpp:blocking:unblock", edit_blocklist);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
220
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
221 -- Cache invalidation, solved!
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
222 module:hook_global("user-deleted", function (event)
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
223 if event.host == module.host then
7079
f094683ae6eb mod_blocklist: Clear second level cache correctly on user deletion
Kim Alvefur <zash@zash.se>
parents: 6976
diff changeset
224 cache2:set(event.username, nil);
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
225 cache[event.username] = nil;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
226 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
227 end);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
228
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
229 -- Buggy clients
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
230 module:hook("iq-error/self/blocklist-push", function (event)
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
231 local _, condition, text = event.stanza:get_error();
6460
6d3187f24608 mod_blocklist: Capitalize log message
Kim Alvefur <zash@zash.se>
parents: 6352
diff changeset
232 (event.origin.log or module._log)("warn", "Client returned an error in response to notification from mod_%s: %s%s%s", module.name, condition, text and ": " or "", text or "");
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
233 return true;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
234 end);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
235
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
236 local function is_blocked(user, jid)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
237 local blocklist = cache[user] or get_blocklist(user);
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238 if blocklist[jid] then return true; end
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239 local node, host = jid_split(jid);
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240 return blocklist[host] or node and blocklist[node..'@'..host];
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241 end
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242
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243 -- Event handlers for bouncing or dropping stanzas
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244 local function drop_stanza(event)
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245 local stanza = event.stanza;
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246 local attr = stanza.attr;
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247 local to, from = attr.to, attr.from;
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248 to = to and jid_split(to);
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249 if to and from then
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250 return is_blocked(to, from);
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251 end
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252 end
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253
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254 local function bounce_stanza(event)
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255 local origin, stanza = event.origin, event.stanza;
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256 if drop_stanza(event) then
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257 origin.send(st_error_reply(stanza, "cancel", "service-unavailable"));
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258 return true;
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259 end
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260 end
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261
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262 local function bounce_iq(event)
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263 local type = event.stanza.attr.type;
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264 if type == "set" or type == "get" then
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265 return bounce_stanza(event);
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266 end
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267 return drop_stanza(event); -- result or error
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268 end
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269
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270 local function bounce_message(event)
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271 local type = event.stanza.attr.type;
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272 if type == "chat" or not type or type == "normal" then
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273 return bounce_stanza(event);
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274 end
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275 return drop_stanza(event); -- drop headlines, groupchats etc
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276 end
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277
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278 local function drop_outgoing(event)
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279 local origin, stanza = event.origin, event.stanza;
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280 local username = origin.username or jid_split(stanza.attr.from);
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281 if not username then return end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
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282 local to = stanza.attr.to;
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283 if to then return is_blocked(username, to); end
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284 -- nil 'to' means a self event, don't bock those
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285 end
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286
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287 local function bounce_outgoing(event)
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288 local origin, stanza = event.origin, event.stanza;
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289 local type = stanza.attr.type;
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290 if type == "error" or stanza.name == "iq" and type == "result" then
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291 return drop_outgoing(event);
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292 end
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293 if drop_outgoing(event) then
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294 origin.send(st_error_reply(stanza, "cancel", "not-acceptable", "You have blocked this JID")
6344
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295 :tag("blocked", { xmlns = "urn:xmpp:blocking:errors" }));
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296 return true;
6344
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297 end
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298 end
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299
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
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300 -- Hook all the events!
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301 local prio_in, prio_out = 100, 100;
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302 module:hook("presence/bare", drop_stanza, prio_in);
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303 module:hook("presence/full", drop_stanza, prio_in);
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304
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305 module:hook("message/bare", bounce_message, prio_in);
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parents:
diff changeset
306 module:hook("message/full", bounce_message, prio_in);
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parents:
diff changeset
307
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
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308 module:hook("iq/bare", bounce_iq, prio_in);
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Kim Alvefur <zash@zash.se>
parents:
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309 module:hook("iq/full", bounce_iq, prio_in);
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parents:
diff changeset
310
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
311 module:hook("pre-message/bare", bounce_outgoing, prio_out);
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Kim Alvefur <zash@zash.se>
parents:
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312 module:hook("pre-message/full", bounce_outgoing, prio_out);
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parents:
diff changeset
313 module:hook("pre-message/host", bounce_outgoing, prio_out);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
314
6969
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parents: 6968
diff changeset
315 -- Note: MUST bounce these, but we don't because this would produce
31d8e1a8a014 mod_blocklist: Add comment about compliance issue #575
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parents: 6968
diff changeset
316 -- lots of error replies due to server-generated presence.
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parents: 6968
diff changeset
317 -- FIXME some day, likely needing changes to mod_presence
6344
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parents:
diff changeset
318 module:hook("pre-presence/bare", drop_outgoing, prio_out);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
319 module:hook("pre-presence/full", drop_outgoing, prio_out);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
320 module:hook("pre-presence/host", drop_outgoing, prio_out);
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parents:
diff changeset
321
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
322 module:hook("pre-iq/bare", bounce_outgoing, prio_out);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
323 module:hook("pre-iq/full", bounce_outgoing, prio_out);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
324 module:hook("pre-iq/host", bounce_outgoing, prio_out);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
325