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-- Gemeinschaft 5 module: user class
-- (c) AMOOMA GmbH 2012
--
module(...,package.seeall)
User = {}
MAX_GROUP_MEMBERSHIPS = 256;
-- create user object
function User.new(self, arg)
arg = arg or {}
object = arg.object or {}
setmetatable(object, self);
self.__index = self;
self.class = 'user';
self.log = arg.log;
self.database = arg.database;
self.record = arg.record;
return object;
end
-- find user by id
function User.find_by_id(self, id)
local sql_query = 'SELECT * FROM `users` WHERE `id`= ' .. tonumber(id) .. ' LIMIT 1';
local user = nil;
self.database:query(sql_query, function(account_entry)
user = User:new(self);
user.record = account_entry;
user.id = tonumber(account_entry.id);
user.uuid = account_entry.uuid;
end);
return user;
end
-- find user by uuid
function User.find_by_uuid(self, uuid)
local sql_query = 'SELECT * FROM `users` WHERE `id`= "' .. uuid .. '" LIMIT 1';
local user = nil;
self.database:query(sql_query, function(account_entry)
user = User:new(self);
user.record = account_entry;
user.id = tonumber(account_entry.id);
user.uuid = account_entry.uuid;
end);
return user;
end
function User.list_groups(self, id)
require 'common.str'
id = id or self.id;
local sql_query = 'SELECT `b`.`name` FROM `user_group_memberships` `a` \
JOIN `user_groups` `b` ON `a`.`user_group_id` = `b`.`id` \
WHERE `a`.`state` = "active" AND `a`.`user_id`= ' .. tonumber(id) .. ' ORDER BY `b`.`position` LIMIT ' .. MAX_GROUP_MEMBERSHIPS;
local groups = {};
self.database:query(sql_query, function(entry)
groups[common.str.downcase(entry.name)] = true;
end);
return groups;
end
function User.check_pin(self, pin_to_check)
if not self.record then
return nil
end
local str_to_hash = tostring(self.record.pin_salt) .. tostring(pin_to_check);
local file = io.popen("echo -n " .. str_to_hash .. "|sha256sum");
local pin_to_check_hash = file:read("*a");
file:close();
pin_to_check_hash = pin_to_check_hash:sub(1, 64);
if pin_to_check_hash == self.record.pin_hash then
return true;
end
return false;
end
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