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);