prosody
d90a4d6a0e2c
plugins/mod_blocklist.lua

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plugins/mod_blocklist.lua @ 6967:d90a4d6a0e2c

mod_blocklist: Clear second level cache when user is deleted
author Kim Alvefur <zash@zash.se>
date Sat, 05 Dec 2015 22:46:50 +0100
parent 6944:62b6f6d230f1
child 6968:828a10e0464b
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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 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 is_contact_subscribed = require"core.rostermanager".is_contact_subscribed;
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14 local st = require"util.stanza";
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15 local st_error_reply = st.error_reply;
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16 local jid_prep = require"util.jid".prep;
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17 local jid_split = require"util.jid".split;
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18
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19 local storage = module:open_store();
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20 local sessions = prosody.hosts[module.host].sessions;
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21
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22 -- Cache of blocklists by username may randomly expire at any time
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23 local cache = setmetatable({}, { __mode = "v" });
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24
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25 -- Second level of caching, keeps a fixed number of items,
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26 -- also anchors items in the above cache
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27 local cache_size = module:get_option_number("blocklist_cache_size", 64);
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28 local cache2 = require"util.cache".new(cache_size);
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29
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30 local null_blocklist = {};
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31
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32 module:add_feature("urn:xmpp:blocking");
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33
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34 local function set_blocklist(username, blocklist)
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35 local ok, err = storage:set(username, blocklist);
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36 if not ok then
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37 return ok, err;
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38 end
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39 -- Successful save, update the cache
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40 cache2:set(username, blocklist);
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41 cache[username] = blocklist;
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42 return true;
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43 end
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44
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45 -- Migrates from the old mod_privacy storage
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46 local function migrate_privacy_list(username)
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47 local migrated_data = { [false] = "not empty" };
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48 local legacy_data = module:open_store("privacy"):get(username);
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49 if legacy_data and legacy_data.lists and legacy_data.default then
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50 legacy_data = legacy_data.lists[legacy_data.default];
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51 legacy_data = legacy_data and legacy_data.items;
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52 else
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53 return migrated_data;
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54 end
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55 if legacy_data then
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56 module:log("info", "Migrating blocklist from mod_privacy storage for user '%s'", username);
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57 local item, jid;
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58 for i = 1, #legacy_data do
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59 item = legacy_data[i];
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60 if item.type == "jid" and item.action == "deny" then
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61 jid = jid_prep(item.value);
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62 if not jid then
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63 module:log("warn", "Invalid JID in privacy store for user '%s' not migrated: %s", username, tostring(item.value));
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64 else
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65 migrated_data[jid] = true;
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66 end
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67 end
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68 end
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69 end
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70 set_blocklist(username, migrated_data);
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71 return migrated_data;
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72 end
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73
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74 local function get_blocklist(username)
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75 local blocklist = cache[username];
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76 if not blocklist then
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77 blocklist = cache2:get(username);
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78 end
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79 if not blocklist then
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80 if not user_exists(username, module.host) then
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81 return null_blocklist;
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82 end
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83 blocklist = storage:get(username);
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84 if not blocklist then
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85 blocklist = migrate_privacy_list(username);
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86 end
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87 cache2:set(username, blocklist);
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88 end
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89 cache[username] = blocklist;
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90 return blocklist;
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91 end
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92
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93 module:hook("iq-get/self/urn:xmpp:blocking:blocklist", function (event)
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94 local origin, stanza = event.origin, event.stanza;
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95 local username = origin.username;
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96 local reply = st.reply(stanza):tag("blocklist", { xmlns = "urn:xmpp:blocking" });
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97 local blocklist = get_blocklist(username);
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98 for jid in pairs(blocklist) do
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99 if jid then
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100 reply:tag("item", { jid = jid }):up();
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101 end
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102 end
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103 origin.interested_blocklist = true; -- Gets notified about changes
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104 origin.send(reply);
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105 return true;
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106 end);
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107
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108 -- Add or remove some jid(s) from the blocklist
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109 -- We want this to be atomic and not do a partial update
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110 local function edit_blocklist(event)
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111 local origin, stanza = event.origin, event.stanza;
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112 local username = origin.username;
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113 local action = stanza.tags[1];
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114 local new = {};
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115
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116 for item in action:childtags("item") do
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117 local jid = jid_prep(item.attr.jid);
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118 if not jid then
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parents: 6629
diff changeset
119 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
120 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
121 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
122 item.attr.jid = jid; -- echo back prepped
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
123 new[jid] = is_contact_subscribed(username, module.host, jid) or false;
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
124 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
125
6352
b703e6930e4c mod_blocklist: Use full word as variable name, we can afford that
Kim Alvefur <zash@zash.se>
parents: 6351
diff changeset
126 local mode = action.name == "block" or nil;
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
127
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
128 if mode and not next(new) then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
129 -- <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
130 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
131 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
132 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
133
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
134 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
135
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
136 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
137
6350
bba5f4ffe75a mod_blocklist: Fix any unblock emptying the blocklist
Kim Alvefur <zash@zash.se>
parents: 6344
diff changeset
138 if mode 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
139 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
140 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
141 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 for jid in pairs(new) do
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 new_blocklist[jid] = mode;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
145 -- 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
146 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
147 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
148
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
149 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
150 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
151 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
152 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
153 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
154 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
155 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
156
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
157 if mode then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
158 for jid, in_roster in pairs(new) do
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
159 if not blocklist[jid] and in_roster and sessions[username] then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
160 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
161 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
162 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
163 end
6344
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
165 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
166 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
167 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
168 if sessions[username] then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 local blocklist_push = st.iq({ type = "set", id = "blocklist-push" })
6352
b703e6930e4c mod_blocklist: Use full word as variable name, we can afford that
Kim Alvefur <zash@zash.se>
parents: 6351
diff changeset
170 :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
171
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 for _, session in pairs(sessions[username].sessions) do
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173 if session.interested_blocklist then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 blocklist_push.attr.to = session.full_jid;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 session.send(blocklist_push);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
177 end
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
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
180 return true;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
181 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
182
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183 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
184 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
185
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
186 -- 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
187 module:hook_global("user-deleted", function (event)
6629
42aeb882b3e1 mod_blocklist: Some cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6531
diff changeset
188 if event.host == module.host then
6967
d90a4d6a0e2c mod_blocklist: Clear second level cache when user is deleted
Kim Alvefur <zash@zash.se>
parents: 6944
diff changeset
189 cache: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
190 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
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
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
194 -- Buggy clients
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
195 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
196 local _, condition, text = event.stanza:get_error();
6460
6d3187f24608 mod_blocklist: Capitalize log message
Kim Alvefur <zash@zash.se>
parents: 6352
diff changeset
197 (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
198 return true;
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
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
201 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
202 local blocklist = cache[user] or get_blocklist(user);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 if blocklist[jid] then return true; end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
204 local node, host = jid_split(jid);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
205 return blocklist[host] or node and blocklist[node..'@'..host];
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
206 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
207
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
208 -- 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
209 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:
diff changeset
210 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
211 local attr = stanza.attr;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
212 local to, from = attr.to, attr.from;
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
213 to = to and jid_split(to);
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
214 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
215 return is_blocked(to, from);
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 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 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
220 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
221 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
222 origin.send(st_error_reply(stanza, "cancel", "service-unavailable"));
aeb088bb1a20 mod_blocklist: Explicitly halt event propagation after returning a reply (send returns nil sometimes)
Kim Alvefur <zash@zash.se>
parents: 6629
diff changeset
223 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
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 local function bounce_iq(event)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
228 local type = event.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
229 if type == "set" or type == "get" then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
230 return 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
231 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
232 return drop_stanza(event); -- result or error
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
233 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
234
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
235 local function bounce_message(event)
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
236 local type = event.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
237 if type == "chat" or not type or type == "normal" then
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
238 return 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
239 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
240 return drop_stanza(event); -- drop headlines, groupchats etc
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
diff changeset
241 end
68b5c1ed18dd mod_blocklist: XEP-0191 implementation written for speed and independence from mod_privacy
Kim Alvefur <zash@zash.se>
parents:
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242
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243 local function drop_outgoing(event)
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244 local origin, stanza = event.origin, event.stanza;
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245 local username = origin.username or jid_split(stanza.attr.from);
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246 if not username then return end
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247 local to = stanza.attr.to;
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248 if to then return is_blocked(username, to); end
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249 -- nil 'to' means a self event, don't bock those
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250 end
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251
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252 local function bounce_outgoing(event)
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253 local origin, stanza = event.origin, event.stanza;
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254 local type = stanza.attr.type;
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255 if type == "error" or stanza.name == "iq" and type == "result" then
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256 return drop_outgoing(event);
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257 end
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258 if drop_outgoing(event) then
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259 origin.send(st_error_reply(stanza, "cancel", "not-acceptable", "You have blocked this JID")
6344
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260 :tag("blocked", { xmlns = "urn:xmpp:blocking:errors" }));
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261 return true;
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262 end
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263 end
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264
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265 -- Hook all the events!
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266 local prio_in, prio_out = 100, 100;
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267 module:hook("presence/bare", drop_stanza, prio_in);
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268 module:hook("presence/full", drop_stanza, prio_in);
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269
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270 module:hook("message/bare", bounce_message, prio_in);
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271 module:hook("message/full", bounce_message, prio_in);
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272
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273 module:hook("iq/bare", bounce_iq, prio_in);
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274 module:hook("iq/full", bounce_iq, prio_in);
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275
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276 module:hook("pre-message/bare", bounce_outgoing, prio_out);
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277 module:hook("pre-message/full", bounce_outgoing, prio_out);
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278 module:hook("pre-message/host", bounce_outgoing, prio_out);
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279
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280 module:hook("pre-presence/bare", drop_outgoing, prio_out);
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281 module:hook("pre-presence/full", drop_outgoing, prio_out);
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282 module:hook("pre-presence/host", drop_outgoing, prio_out);
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283
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284 module:hook("pre-iq/bare", bounce_outgoing, prio_out);
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285 module:hook("pre-iq/full", bounce_outgoing, prio_out);
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286 module:hook("pre-iq/host", bounce_outgoing, prio_out);
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287