annotate mod_readonly/mod_readonly.lua @ 2670:6e01878103c0

mod_smacks: Ignore user when writing or reading session_cache on prosody 0.9 At least under some circumstances it seems that session.username is nil when a user tries to resume his session in prosody 0.9. The username is not relevant when no limiting is done (limiting the number of entries in the session cache is only possible in prosody 0.10), so this commit removes the usage of the username when accessing the prosody 0.9 session cache.
author tmolitor <thilo@eightysoft.de>
date Thu, 06 Apr 2017 02:12:14 +0200
parents 8133dd5f266a
children 7776c9dc5f37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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750
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
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1 local st = require "util.stanza";
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2
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3 local stores = module:get_option("readonly_stores", {
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4 vcard = { "vcard-temp", "vCard" };
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5 });
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6
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7 local namespaces = {};
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8 for name, namespace in pairs(stores) do
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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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12 function prevent_write(event)
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13 local stanza = event.stanza;
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14 if stanza.attr.type ~= "set" then return; end
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15 local xmlns_and_tag = stanza.tags[1].attr.xmlns..":"..stanza.tags[1].name;
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16 local store_name = namespaces[xmlns_and_tag];
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17 if store_name then
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18 module:log("warn", "Preventing modification of %s store by %s", store_name, stanza.attr.from);
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19 event.origin.send(st.error_reply(stanza, "cancel", "not-allowed", store_name.." data is read-only"));
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20 return true; -- Block stanza
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21 end
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22 end
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23
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24 for namespace in pairs(namespaces) do
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25 module:hook("iq/bare/"..namespace, prevent_write, 200);
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26 end