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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local modulemanager = require "core.modulemanager";
local log = require "util.logger".init("usermanager");
local type = type;
local ipairs = ipairs;
local jid_bare = require "util.jid".bare;
local jid_prep = require "util.jid".prep;
local config = require "core.configmanager";
local hosts = hosts;
local sasl_new = require "util.sasl".new;
local storagemanager = require "core.storagemanager";
local prosody = _G.prosody;
local setmetatable = setmetatable;
local default_provider = "internal_plain";
local _ENV = nil;
local function new_null_provider()
local function dummy() return nil, "method not implemented"; end;
local function dummy_get_sasl_handler() return sasl_new(nil, {}); end
return setmetatable({name = "null", get_sasl_handler = dummy_get_sasl_handler}, {
__index = function(self, method) return dummy; end --luacheck: ignore 212
});
end
local provider_mt = { __index = new_null_provider() };
local function initialize_host(host)
local host_session = hosts[host];
if host_session.type ~= "local" then return; end
host_session.events.add_handler("item-added/auth-provider", function (event)
local provider = event.item;
local auth_provider = config.get(host, "authentication") or default_provider;
if config.get(host, "anonymous_login") then
log("error", "Deprecated config option 'anonymous_login'. Use authentication = 'anonymous' instead.");
auth_provider = "anonymous";
end -- COMPAT 0.7
if provider.name == auth_provider then
host_session.users = setmetatable(provider, provider_mt);
end
if host_session.users ~= nil and host_session.users.name ~= nil then
log("debug", "Host '%s' now set to use user provider '%s'", host, host_session.users.name);
end
end);
host_session.events.add_handler("item-removed/auth-provider", function (event)
local provider = event.item;
if host_session.users == provider then
host_session.users = new_null_provider();
end
end);
host_session.users = new_null_provider(); -- Start with the default usermanager provider
local auth_provider = config.get(host, "authentication") or default_provider;
if config.get(host, "anonymous_login") then auth_provider = "anonymous"; end -- COMPAT 0.7
if auth_provider ~= "null" then
modulemanager.load(host, "auth_"..auth_provider);
end
end;
prosody.events.add_handler("host-activated", initialize_host, 100);
local function test_password(username, host, password)
return hosts[host].users.test_password(username, password);
end
local function get_password(username, host)
return hosts[host].users.get_password(username);
end
local function set_password(username, password, host, resource)
local ok, err = hosts[host].users.set_password(username, password);
if ok then
prosody.events.fire_event("user-password-changed", { username = username, host = host, resource = resource });
end
return ok, err;
end
local function user_exists(username, host)
if hosts[host].sessions[username] then return true; end
return hosts[host].users.user_exists(username);
end
local function create_user(username, password, host)
return hosts[host].users.create_user(username, password);
end
local function delete_user(username, host)
local ok, err = hosts[host].users.delete_user(username);
if not ok then return nil, err; end
prosody.events.fire_event("user-deleted", { username = username, host = host });
return storagemanager.purge(username, host);
end
local function users(host)
return hosts[host].users.users();
end
local function get_sasl_handler(host, session)
return hosts[host].users.get_sasl_handler(session);
end
local function get_provider(host)
return hosts[host].users;
end
local function is_admin(jid, host)
if host and not hosts[host] then return false; end
if type(jid) ~= "string" then return false; end
jid = jid_bare(jid);
host = host or "*";
local host_admins = config.get(host, "admins");
local global_admins = config.get("*", "admins");
if host_admins and host_admins ~= global_admins then
if type(host_admins) == "table" then
for _,admin in ipairs(host_admins) do
if jid_prep(admin) == jid then
return true;
end
end
elseif host_admins then
log("error", "Option 'admins' for host '%s' is not a list", host);
end
end
if global_admins then
if type(global_admins) == "table" then
for _,admin in ipairs(global_admins) do
if jid_prep(admin) == jid then
return true;
end
end
elseif global_admins then
log("error", "Global option 'admins' is not a list");
end
end
-- Still not an admin, check with auth provider
if host ~= "*" and hosts[host].users and hosts[host].users.is_admin then
return hosts[host].users.is_admin(jid);
end
return false;
end
return {
new_null_provider = new_null_provider;
initialize_host = initialize_host;
test_password = test_password;
get_password = get_password;
set_password = set_password;
user_exists = user_exists;
create_user = create_user;
delete_user = delete_user;
users = users;
get_sasl_handler = get_sasl_handler;
get_provider = get_provider;
is_admin = is_admin;
};
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