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// Copyright 2022 Jo-Philipp Wich <jo@mein.io>
// Licensed to the public under the Apache License 2.0.
import { load_catalog, change_catalog, get_translations } from 'luci.core';
const ubus_types = [
null,
'array',
'object',
'string',
null, // INT64
'number',
null, // INT16,
'boolean',
'double'
];
function ubus_reply(id, data, code, errmsg) {
const reply = { jsonrpc: '2.0', id };
if (errmsg)
reply.error = { code, message: errmsg };
else if (type(code) == 'object')
reply.result = code;
else if (data != null)
reply.result = [ code, data ];
else
reply.result = [ code ];
return reply;
}
function ubus_access(sid, obj, fun) {
return (ubus.call('session', 'access', {
ubus_rpc_session: sid,
scope: 'ubus',
object: obj,
function: fun
})?.access == true);
}
function ubus_request(req) {
if (type(req?.method) != 'string' || req?.jsonrpc != '2.0' || req?.id == null)
return ubus_reply(null, null, -32600, 'Invalid request');
if (req.method == 'call') {
if (type(req?.params) != 'array' || length(req.params) < 3)
return ubus_reply(null, null, -32600, 'Invalid parameters');
let sid = req.params[0],
obj = req.params[1],
fun = req.params[2],
arg = req.params[3] ?? {};
if (type(arg) != 'object' || exists(arg, 'ubus_rpc_session'))
return ubus_reply(req.id, null, -32602, 'Invalid parameters');
if (sid == '00000000000000000000000000000000' && ctx.authsession)
sid = ctx.authsession;
if (!ubus_access(sid, obj, fun))
return ubus_reply(req.id, null, -32002, 'Access denied');
arg.ubus_rpc_session = sid;
// clear error
ubus.error();
const res = ubus.call(obj, fun, arg);
return ubus_reply(req.id, res, ubus.error(true) ?? 0);
}
if (req.method == 'list') {
if (req?.params == null || (type(req.params) == 'array' && length(req.params) == 0)) {
return ubus_reply(req.id, null, ubus.list());
}
else if (type(req.params) == 'array') {
const rv = {};
for (let param in req.params) {
if (type(param) != 'string')
return ubus_reply(req.id, null, -32602, 'Invalid parameters');
for (let m, p in ubus.list(param)?.[0]) {
for (let pn, pt in p) {
rv[param] ??= {};
rv[param][m] ??= {};
rv[param][m][pn] = ubus_types[pt] ?? 'unknown';
}
}
}
return ubus_reply(req.id, null, rv);
}
else {
return ubus_reply(req.id, null, -32602, 'Invalid parameters')
}
}
return ubus_reply(req.id, null, -32601, 'Method not found')
}
return {
action_ubus: function() {
let request;
try { request = json(http.content()); }
catch { request = null; }
http.prepare_content('application/json; charset=UTF-8');
if (type(request) == 'object')
http.write_json(ubus_request(request));
else if (type(request) == 'array')
http.write_json(map(request, ubus_request));
else
http.write_json(ubus_reply(null, null, -32700, 'Parse error'))
},
action_translations: function(reqlang) {
if (reqlang != null && reqlang != dispatcher.lang) {
load_catalog(reqlang, '/usr/lib/lua/luci/i18n');
change_catalog(reqlang);
}
http.prepare_content('application/javascript; charset=UTF-8');
http.write('window.TR={');
get_translations((key, val) => http.write(sprintf('"%08x":%J,', key, val)));
http.write('};');
},
action_logout: function() {
const url = dispatcher.build_url();
if (ctx.authsession) {
ubus.call('session', 'destroy', { ubus_rpc_session: ctx.authsession });
if (http.getenv('HTTPS') == 'on')
http.header('Set-Cookie', `sysauth_https=; expires=Thu, 01 Jan 1970 01:00:00 GMT; path=${url}`);
else
http.header('Set-Cookie', `sysauth_http=; expires=Thu, 01 Jan 1970 01:00:00 GMT; path=${url}`);
}
http.redirect(url);
},
action_menu: function() {
const session = dispatcher.is_authenticated({ methods: [ 'cookie:sysauth_https', 'cookie:sysauth_http' ] });
const menu = dispatcher.menu_json(session?.acls ?? {}) ?? {};
http.prepare_content('application/json; charset=UTF-8');
http.write_json(menu);
}
};
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