annotate mod_readonly/mod_readonly.lua @ 4537:53ee391ca689

mod_smacks: Fix traceback due to session being destroyed in send() Sending something can cause the OS to notice that the connection is dead and then the connection can be dead at this point. More likely if opportunistic_writes is enabled.
author Kim Alvefur <zash@zash.se>
date Thu, 01 Apr 2021 11:35:26 +0200
parents 7776c9dc5f37
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
750
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
Matthew Wild <mwild1@gmail.com>
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1 local st = require "util.stanza";
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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2
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3 local stores = module:get_option("readonly_stores", {
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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4 vcard = { "vcard-temp", "vCard" };
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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5 });
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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6
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7 local namespaces = {};
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8 for name, namespace in pairs(stores) do
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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9 namespaces[table.concat(namespace, ":")] = name;
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10 end
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11
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7776c9dc5f37 mod_readonly: Simplify iq handling by hooking on iq-set/ instead of iq/.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 750
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12 local function prevent_write(event)
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13 local stanza = event.stanza;
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14 local xmlns_and_tag = stanza.tags[1].attr.xmlns..":"..stanza.tags[1].name;
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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15 local store_name = namespaces[xmlns_and_tag];
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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16 if store_name then
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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17 module:log("warn", "Preventing modification of %s store by %s", store_name, stanza.attr.from);
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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18 event.origin.send(st.error_reply(stanza, "cancel", "not-allowed", store_name.." data is read-only"));
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19 return true; -- Block stanza
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20 end
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21 end
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22
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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23 for namespace in pairs(namespaces) do
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7776c9dc5f37 mod_readonly: Simplify iq handling by hooking on iq-set/ instead of iq/.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 750
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24 module:hook("iq-set/bare/"..namespace, prevent_write, 200);
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25 end