Mercurial > prosody-modules
view mod_storage_mongodb/mod_storage_mongodb.lua @ 3656:3e0f4d727825
mod_vcard_muc: Add an alternative method of signaling avatar change
When the avatar has been changed, a signal is sent that the room
configuration has changed. Clients then do a disco#info query to find
the SHA-1 of the new avatar. They can then fetch it as before, or not if
they have it cached already.
This is meant to be less disruptive than signaling via presence, which
caused problems for some clients.
If clients transition to the new method, the old one can eventually be removed.
The namespace is made up while waiting for standardization.
Otherwise it is very close to what's described in
https://xmpp.org/extensions/inbox/muc-avatars.html
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 25 Aug 2019 20:46:43 +0200 |
parents | b21236b6b8d8 |
children |
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local next = next; local setmetatable = setmetatable; local params = assert ( module:get_option("mongodb") , "mongodb configuration not found" ); prosody.unlock_globals(); local mongo = require "mongo"; prosody.lock_globals(); local json = require "util.json"; local conn local keyval_store = {}; keyval_store.__index = keyval_store; function keyval_store:get(username) local host = module.host or "_global"; local store = self.store; -- The database name can't have a period in it (hence it can't be a host/ip) local namespace = params.dbname .. "." .. host; local v = { _id = { store = store ; username = username } }; local cursor , err = conn:query ( namespace , v ); if not cursor then return nil , err end; local r , err = cursor:next ( ); if not r then return nil , err end; return r.data; end function keyval_store:set(username, data) local host = module.host or "_global"; local store = self.store; -- The database name can't have a period in it (hence it can't be a host/ip) local namespace = params.dbname .. "." .. host; local v = { _id = { store = store ; username = username } }; if next(data) ~= nil then -- set data v.data = data; return conn:insert ( namespace , json.encode(v) ); else -- delete data return conn:remove ( namespace , v ); end; end local driver = {}; function driver:open(store, typ) if not conn then conn = assert ( mongo.Connection.New ( true ) ); assert ( conn:connect ( params.server ) ); if params.username then assert ( conn:auth ( params ) ); end end if not typ then -- default key-value store return setmetatable({ store = store }, keyval_store); end; return nil, "unsupported-store"; end module:provides("storage", driver);