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-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local plugin_dir = CFG_PLUGINDIR or "./plugins/";
local io_open, os_time = io.open, os.time;
local loadstring, pairs = loadstring, pairs;
local datamanager = require "util.datamanager";
module "pluginloader"
local function load_from_datastore(name)
local content = datamanager.load(name, "*", "plugins");
if not content or not content[1] then return nil, "Resource not found"; end
return content[1], name;
end
local function load_file(name)
local file, err = io_open(plugin_dir..name);
if not file then return file, err; end
local content = file:read("*a");
file:close();
return content, name;
end
function load_resource(plugin, resource, loader)
if not resource then
resource = "mod_"..plugin..".lua";
end
loader = loader or load_file;
local content, err = loader(plugin.."/"..resource);
if not content then content, err = loader(resource); end
-- TODO add support for packed plugins
if not content and loader == load_file then
return load_resource(plugin, resource, load_from_datastore);
end
return content, err;
end
function store_resource(plugin, resource, content, metadata)
if not resource then
resource = "mod_"..plugin..".lua";
end
local store = { content };
if metadata then
for k,v in pairs(metadata) do
store[k] = v;
end
end
datamanager.store(plugin.."/"..resource, "*", "plugins", store);
end
function load_code(plugin, resource)
local content, err = load_resource(plugin, resource);
if not content then return content, err; end
return loadstring(content, "@"..err);
end
return _M;
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