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mod_compact_resource/mod_compact_resource.lua @ 5173:460f78654864

mod_muc_rtbl: also filter messages This was a bit tricky because we don't want to run the JIDs through SHA256 on each message. Took a while to come up with this simple plan of just caching the SHA256 of the JIDs on the occupants. This will leave some dirt in the occupants after unloading the module, but that should be ok; once they cycle the room, the hashes will be gone. This is direly needed, otherwise, there is a tight race between the moderation activities and the actors joining the room.
author Jonas Schäfer <jonas@wielicki.name>
date Tue, 21 Feb 2023 21:37:27 +0100
parent 1761:6f34e51a23f0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1761
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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1
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2 local base64_encode = require"util.encodings".base64.encode;
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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3 local random_bytes = require"util.random".bytes;
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4
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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5 local b64url = { ["+"] = "-", ["/"] = "_", ["="] = "" };
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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6 local function random_resource()
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7 return base64_encode(random_bytes(8)):gsub("[+/=]", b64url);
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8 end
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9
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10 module:hook("pre-resource-bind", function (event)
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11 event.resource = random_resource();
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12 end);