prosody
72a2b85c0537
plugins/mod_blocklist.lua

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plugins/mod_blocklist.lua @ 11797:72a2b85c0537

mod_message: Clarify purpose of username field in offline message event Added in 03714861f8fc but it did not appear to be used anywhere until offline message "handling" was added to mod_mam in 8141645e3865
author Kim Alvefur <zash@zash.se>
date Sun, 12 Sep 2021 21:31:04 +0200
parent 10111:0f335815244f
child 12775:1dd468c63a3d
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rev   line source
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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 local full_sessions = prosody.full_sessions;
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26
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27 -- First level cache of blocklists by username.
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28 -- Weak table so may randomly expire at any time.
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29 local cache = setmetatable({}, { __mode = "v" });
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30
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31 -- Second level of caching, keeps a fixed number of items, also anchors
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32 -- items in the above cache.
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33 --
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34 -- The size of this affects how often we will need to load a blocklist from
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35 -- disk, which we want to avoid during routing. On the other hand, we don't
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36 -- want to use too much memory either, so this can be tuned by advanced
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37 -- users. TODO use science to figure out a better default, 64 is just a guess.
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38 local cache_size = module:get_option_number("blocklist_cache_size", 64);
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39 local cache2 = require"util.cache".new(cache_size);
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40
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41 local null_blocklist = {};
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42
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43 module:add_feature("urn:xmpp:blocking");
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44
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45 local function set_blocklist(username, blocklist)
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46 local ok, err = storage:set(username, blocklist);
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47 if not ok then
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48 return ok, err;
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49 end
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50 -- Successful save, update the cache
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51 cache2:set(username, blocklist);
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52 cache[username] = blocklist;
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53 return true;
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54 end
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55
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56 -- Migrates from the old mod_privacy storage
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57 local function migrate_privacy_list(username)
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58 local legacy_data = module:open_store("privacy"):get(username);
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59 if not legacy_data or not legacy_data.lists or not legacy_data.default then return; end
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60 local default_list = legacy_data.lists[legacy_data.default];
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61 if not default_list or not default_list.items then return; end
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62
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63 local migrated_data = { [false] = { created = os.time(); migrated = "privacy" }};
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64
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65 module:log("info", "Migrating blocklist from mod_privacy storage for user '%s'", username);
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66 for _, item in ipairs(default_list.items) do
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67 if item.type == "jid" and item.action == "deny" then
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68 local jid = jid_prep(item.value);
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69 if not jid then
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70 module:log("warn", "Invalid JID in privacy store for user '%s' not migrated: %s", username, item.value);
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71 else
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72 migrated_data[jid] = true;
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73 end
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74 end
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75 end
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76 set_blocklist(username, migrated_data);
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77 return migrated_data;
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78 end
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79
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80 local function get_blocklist(username)
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81 local blocklist = cache2:get(username);
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82 if not blocklist then
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83 if not user_exists(username, module.host) then
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84 return null_blocklist;
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85 end
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86 blocklist = storage:get(username);
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87 if not blocklist then
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88 blocklist = migrate_privacy_list(username);
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89 end
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90 if not blocklist then
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91 blocklist = { [false] = { created = os.time(); }; };
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92 end
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93 cache2:set(username, blocklist);
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94 end
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95 cache[username] = blocklist;
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96 return blocklist;
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97 end
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98
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99 module:hook("iq-get/self/urn:xmpp:blocking:blocklist", function (event)
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100 local origin, stanza = event.origin, event.stanza;
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101 local username = origin.username;
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102 local reply = st.reply(stanza):tag("blocklist", { xmlns = "urn:xmpp:blocking" });
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103 local blocklist = cache[username] or get_blocklist(username);
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104 for jid in pairs(blocklist) do
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105 if jid then
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106 reply:tag("item", { jid = jid }):up();
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107 end
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108 end
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109 origin.interested_blocklist = true; -- Gets notified about changes
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110 origin.send(reply);
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111 return true;
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112 end, -1);
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113
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114 -- Add or remove some jid(s) from the blocklist
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115 -- We want this to be atomic and not do a partial update
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116 local function edit_blocklist(event)
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117 local now = os.time();
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
118 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
119 local username = origin.username;
6971
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Kim Alvefur <zash@zash.se>
parents: 6970
diff changeset
120 local action = stanza.tags[1]; -- "block" or "unblock"
9248
1d6a2cc389eb mod_blocklist: Store timestamp of blocking to allow age to be determined
Kim Alvefur <zash@zash.se>
parents: 8741
diff changeset
121 local is_blocking = action.name == "block" and now or nil; -- nil if unblocking
6971
96080d86bab8 mod_blocklist: Add comments describing some variables
Kim Alvefur <zash@zash.se>
parents: 6970
diff changeset
122 local new = {}; -- JIDs to block depending or unblock on action
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
123
9248
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Kim Alvefur <zash@zash.se>
parents: 8741
diff changeset
124
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
125 -- 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
126 -- > 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
127 -- > 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
128 -- > 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
129 -- 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
130 local send_unavailable = is_blocking and {};
10052
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
131 local send_available = not 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
132
6974
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Kim Alvefur <zash@zash.se>
parents: 6973
diff changeset
133 -- 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
134 -- 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
135 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
136
6352
b703e6930e4c mod_blocklist: Use full word as variable name, we can afford that
Kim Alvefur <zash@zash.se>
parents: 6351
diff changeset
137 for item in action:childtags("item") do
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
138 local jid = jid_prep(item.attr.jid);
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 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
140 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
141 return true;
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 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
144 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
145 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
146 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
147 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
148 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
149 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
150 end
10052
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
151 elseif is_contact_subscribed(username, module.host, jid) then
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
152 send_available[jid] = true;
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
153 end
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
154 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
155
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
156 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
157 -- <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
158 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
159 return true;
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
160 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
161
7775
3733bdbe0b22 mod_blocklist: Check first level cache before calling blocklist getter
Kim Alvefur <zash@zash.se>
parents: 7774
diff changeset
162 local blocklist = cache[username] or get_blocklist(username);
6344
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
163
7771
2b288dab781a mod_blocklist: Make the 'false' metadata field a table so we can store timestamps and other useful data
Kim Alvefur <zash@zash.se>
parents: 7621
diff changeset
164 local new_blocklist = {
9993
02a41315d275 Fix various spelling mistakes [codespell]
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
165 -- We set the [false] key to something as a signal not to migrate privacy lists
9248
1d6a2cc389eb mod_blocklist: Store timestamp of blocking to allow age to be determined
Kim Alvefur <zash@zash.se>
parents: 8741
diff changeset
166 [false] = blocklist[false] or { created = now; };
7771
2b288dab781a mod_blocklist: Make the 'false' metadata field a table so we can store timestamps and other useful data
Kim Alvefur <zash@zash.se>
parents: 7621
diff changeset
167 };
2b288dab781a mod_blocklist: Make the 'false' metadata field a table so we can store timestamps and other useful data
Kim Alvefur <zash@zash.se>
parents: 7621
diff changeset
168 if type(blocklist[false]) == "table" then
9248
1d6a2cc389eb mod_blocklist: Store timestamp of blocking to allow age to be determined
Kim Alvefur <zash@zash.se>
parents: 8741
diff changeset
169 new_blocklist[false].modified = now;
7771
2b288dab781a mod_blocklist: Make the 'false' metadata field a table so we can store timestamps and other useful data
Kim Alvefur <zash@zash.se>
parents: 7621
diff changeset
170 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
171
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
172 if is_blocking or next(new) then
9248
1d6a2cc389eb mod_blocklist: Store timestamp of blocking to allow age to be determined
Kim Alvefur <zash@zash.se>
parents: 8741
diff changeset
173 for jid, t in pairs(blocklist) do
1d6a2cc389eb mod_blocklist: Store timestamp of blocking to allow age to be determined
Kim Alvefur <zash@zash.se>
parents: 8741
diff changeset
174 if jid then new_blocklist[jid] = t; end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 for jid in pairs(new) do
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
177 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
178 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
179 -- 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
180 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
181
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 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
183 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
184 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
185 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
186 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
187 return true;
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
188 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
189
6968
828a10e0464b mod_blocklist: Rename variable for clarity
Kim Alvefur <zash@zash.se>
parents: 6967
diff changeset
190 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
191 for jid in pairs(send_unavailable) do
10054
0656bd283fa2 mod_blocklist: Add comment to clarify some logic
Kim Alvefur <zash@zash.se>
parents: 10053
diff changeset
192 -- Check that this JID isn't already blocked, i.e. this is not a change
6973
f350f840a6f7 mod_blocklist: Restructure how we keep track of where to send unavailable presence
Kim Alvefur <zash@zash.se>
parents: 6972
diff changeset
193 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
194 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
195 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
196 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
197 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
198 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
199 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
200 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
201
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 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
203 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
204 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
205 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
206 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
207 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
208 -- 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
209 end
10052
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
210 else
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
211 local user_bare = username .. "@" .. module.host;
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
212 for jid in pairs(send_available) do
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
213 module:send(st.presence({ type = "probe", to = user_bare, from = jid }));
0c35f353db68 mod_blocklist: Trigger resend of presence when unblocking a contact (fixes #1380)
Kim Alvefur <zash@zash.se>
parents: 9248
diff changeset
214 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
215 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
216
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
217 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
218 :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
219
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
220 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
221 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
222 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
223 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
224 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
225 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
226
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
227 return true;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
228 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
229
7620
c27c9695d130 mod_blocklist: Decrease priority of iq hooks to ease handling by other modules
Kim Alvefur <zash@zash.se>
parents: 7079
diff changeset
230 module:hook("iq-set/self/urn:xmpp:blocking:block", edit_blocklist, -1);
c27c9695d130 mod_blocklist: Decrease priority of iq hooks to ease handling by other modules
Kim Alvefur <zash@zash.se>
parents: 7079
diff changeset
231 module:hook("iq-set/self/urn:xmpp:blocking:unblock", edit_blocklist, -1);
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
232
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
233 -- 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
234 module:hook_global("user-deleted", function (event)
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
235 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
236 cache2:set(event.username, nil);
6344
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parents:
diff changeset
237 cache[event.username] = nil;
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parents:
diff changeset
238 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
239 end);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
240
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
241 -- Buggy clients
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
242 module:hook("iq-error/self/blocklist-push", function (event)
7968
f0e35f4db9e0 mod_blocklist: Split long line [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7775
diff changeset
243 local origin, stanza = event.origin, event.stanza;
8040
62c540d51d50 mod_blocklist: Use local variable [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7968
diff changeset
244 local _, condition, text = stanza:get_error();
7968
f0e35f4db9e0 mod_blocklist: Split long line [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7775
diff changeset
245 local log = (origin.log or module._log);
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Kim Alvefur <zash@zash.se>
parents: 7775
diff changeset
246 log("warn", "Client returned an error in response to notification from mod_%s: %s%s%s",
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Kim Alvefur <zash@zash.se>
parents: 7775
diff changeset
247 module.name, condition, text and ": " or "", text or "");
6344
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parents:
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248 return true;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
249 end);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
250
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
251 local function is_blocked(user, jid)
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Kim Alvefur <zash@zash.se>
parents:
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252 local blocklist = cache[user] or get_blocklist(user);
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Kim Alvefur <zash@zash.se>
parents:
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253 if blocklist[jid] then return true; end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
254 local node, host = jid_split(jid);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
255 return blocklist[host] or node and blocklist[node..'@'..host];
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Kim Alvefur <zash@zash.se>
parents:
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256 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
257
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
258 -- Event handlers for bouncing or dropping stanzas
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
259 local function drop_stanza(event)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
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260 local stanza = event.stanza;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
261 local attr = stanza.attr;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
262 local to, from = attr.to, attr.from;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
263 to = to and jid_split(to);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
264 if to and from then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
265 return is_blocked(to, from);
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Kim Alvefur <zash@zash.se>
parents:
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266 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
267 end
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Kim Alvefur <zash@zash.se>
parents:
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268
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
269 local function bounce_stanza(event)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
270 local origin, stanza = event.origin, event.stanza;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
271 if drop_stanza(event) 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
272 origin.send(st_error_reply(stanza, "cancel", "service-unavailable"));
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
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parents: 6629
diff changeset
273 return true;
6344
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parents:
diff changeset
274 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
275 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
276
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
277 local function bounce_iq(event)
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
278 local type = event.stanza.attr.type;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
279 if type == "set" or type == "get" then
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
280 return bounce_stanza(event);
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parents:
diff changeset
281 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
282 return drop_stanza(event); -- result or error
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parents:
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283 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
284
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
285 local function bounce_message(event)
8275
13dad833e821 mod_blocklist: Drop messages to existing full JIDs in order to prevent issues with MUC PMs, fixes #690
Kim Alvefur <zash@zash.se>
parents: 8040
diff changeset
286 local stanza = event.stanza;
13dad833e821 mod_blocklist: Drop messages to existing full JIDs in order to prevent issues with MUC PMs, fixes #690
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parents: 8040
diff changeset
287 local type = stanza.attr.type;
6344
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parents:
diff changeset
288 if type == "chat" or not type or type == "normal" then
8275
13dad833e821 mod_blocklist: Drop messages to existing full JIDs in order to prevent issues with MUC PMs, fixes #690
Kim Alvefur <zash@zash.se>
parents: 8040
diff changeset
289 if full_sessions[stanza.attr.to] then
13dad833e821 mod_blocklist: Drop messages to existing full JIDs in order to prevent issues with MUC PMs, fixes #690
Kim Alvefur <zash@zash.se>
parents: 8040
diff changeset
290 -- See #690
13dad833e821 mod_blocklist: Drop messages to existing full JIDs in order to prevent issues with MUC PMs, fixes #690
Kim Alvefur <zash@zash.se>
parents: 8040
diff changeset
291 return drop_stanza(event);
13dad833e821 mod_blocklist: Drop messages to existing full JIDs in order to prevent issues with MUC PMs, fixes #690
Kim Alvefur <zash@zash.se>
parents: 8040
diff changeset
292 end
6344
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parents:
diff changeset
293 return bounce_stanza(event);
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parents:
diff changeset
294 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
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parents:
diff changeset
295 return drop_stanza(event); -- drop headlines, groupchats etc
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
296 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
297
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
298 local function drop_outgoing(event)
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parents:
diff changeset
299 local origin, stanza = event.origin, event.stanza;
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Kim Alvefur <zash@zash.se>
parents:
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300 local username = origin.username or jid_split(stanza.attr.from);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
301 if not username then return end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
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parents:
diff changeset
302 local to = stanza.attr.to;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
303 if to then return is_blocked(username, to); end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
304 -- nil 'to' means a self event, don't bock those
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
305 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
306
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
307 local function bounce_outgoing(event)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
308 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
309 local type = stanza.attr.type;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
310 if type == "error" or stanza.name == "iq" and type == "result" then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
311 return drop_outgoing(event);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
312 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
313 if drop_outgoing(event) 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
314 origin.send(st_error_reply(stanza, "cancel", "not-acceptable", "You have blocked this JID")
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
315 :tag("blocked", { xmlns = "urn:xmpp:blocking:errors" }));
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
316 return true;
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
317 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
318 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
319
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
320 -- Hook all the events!
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
321 local prio_in, prio_out = 100, 100;
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("presence/bare", drop_stanza, prio_in);
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("presence/full", drop_stanza, prio_in);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
324
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
325 module:hook("message/bare", bounce_message, prio_in);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
326 module:hook("message/full", bounce_message, prio_in);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
327
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
328 module:hook("iq/bare", bounce_iq, prio_in);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
329 module:hook("iq/full", bounce_iq, prio_in);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
330
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
331 module:hook("pre-message/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
332 module:hook("pre-message/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
333 module:hook("pre-message/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
334
8741
0fd63ed1f647 mod_blocklist: Allow mod_presence to handle subscription stanzas before bouncing outgoing presence (fixes #575)
Kim Alvefur <zash@zash.se>
parents: 8275
diff changeset
335 module:hook("pre-presence/bare", bounce_outgoing, -1);
0fd63ed1f647 mod_blocklist: Allow mod_presence to handle subscription stanzas before bouncing outgoing presence (fixes #575)
Kim Alvefur <zash@zash.se>
parents: 8275
diff changeset
336 module:hook("pre-presence/host", bounce_outgoing, -1);
0fd63ed1f647 mod_blocklist: Allow mod_presence to handle subscription stanzas before bouncing outgoing presence (fixes #575)
Kim Alvefur <zash@zash.se>
parents: 8275
diff changeset
337 module:hook("pre-presence/full", bounce_outgoing, prio_out);
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
338
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
339 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
340 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
341 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
342