view mod_storage_mongodb/mod_storage_mongodb.lua @ 4976:75b6e5df65f9

various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +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);