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<?php
set_include_path(__DIR__ ."/include" . PATH_SEPARATOR .
get_include_path());
$op = $_REQUEST['op'] ?? '';
$method = !empty($_REQUEST['subop']) ?
$_REQUEST['subop'] :
$_REQUEST["method"] ?? false;
if (!$method)
$method = 'index';
else
$method = strtolower($method);
/* Public calls compatibility shim */
$public_calls = array("globalUpdateFeeds", "rss", "getUnread", "getProfiles", "share");
if (array_search($op, $public_calls) !== false) {
header("Location: public.php?" . $_SERVER['QUERY_STRING']);
return;
}
$csrf_token = $_POST['csrf_token'] ?? "";
require_once "autoload.php";
require_once "sessions.php";
require_once "functions.php";
$op = (string)clean($op);
$method = (string)clean($method);
$scope = Tracer::start(__FILE__, ['tags' => json_encode($_REQUEST)]);
startup_gettext();
$script_started = microtime(true);
if (!init_plugins()) {
$scope->close();
return;
}
header("Content-Type: text/json; charset=utf-8");
if (Config::get(Config::SINGLE_USER_MODE)) {
UserHelper::authenticate("admin", null);
}
if (!empty($_SESSION["uid"])) {
if (!\Sessions\validate_session()) {
header("Content-Type: text/json");
print Errors::to_json(Errors::E_UNAUTHORIZED);
$scope->getSpan()->setTag('error', Errors::E_UNAUTHORIZED);
$scope->close();
return;
}
UserHelper::load_user_plugins($_SESSION["uid"]);
}
if (Config::is_migration_needed()) {
print Errors::to_json(Errors::E_SCHEMA_MISMATCH);
$scope->getSpan()->setTag('error', Errors::E_SCHEMA_MISMATCH);
$scope->close();
return;
}
$purge_intervals = array(
0 => __("Use default"),
-1 => __("Never purge"),
7 => __("1 week old"),
14 => __("2 weeks old"),
31 => __("1 month old"),
60 => __("2 months old"),
90 => __("3 months old"));
$update_intervals = array(
0 => __("Default interval"),
-1 => __("Disable updates"),
15 => __("15 minutes"),
30 => __("30 minutes"),
60 => __("Hourly"),
240 => __("4 hours"),
720 => __("12 hours"),
1440 => __("Daily"),
10080 => __("Weekly"));
$update_intervals_nodefault = array(
-1 => __("Disable updates"),
15 => __("15 minutes"),
30 => __("30 minutes"),
60 => __("Hourly"),
240 => __("4 hours"),
720 => __("12 hours"),
1440 => __("Daily"),
10080 => __("Weekly"));
$access_level_names = [
UserHelper::ACCESS_LEVEL_DISABLED => __("Disabled"),
UserHelper::ACCESS_LEVEL_READONLY => __("Read Only"),
UserHelper::ACCESS_LEVEL_USER => __("User"),
UserHelper::ACCESS_LEVEL_POWERUSER => __("Power User"),
UserHelper::ACCESS_LEVEL_ADMIN => __("Administrator")
];
// shortcut syntax for plugin methods (?op=plugin--pmethod&...params)
/* if (strpos($op, PluginHost::PUBLIC_METHOD_DELIMITER) !== false) {
list ($plugin, $pmethod) = explode(PluginHost::PUBLIC_METHOD_DELIMITER, $op, 2);
// TODO: better implementation that won't modify $_REQUEST
$_REQUEST["plugin"] = $plugin;
$method = $pmethod;
$op = "pluginhandler";
} */
$op = str_replace("-", "_", $op);
$override = PluginHost::getInstance()->lookup_handler($op, $method);
if (class_exists($op) || $override) {
if (strpos($method, "_") === 0) {
user_error("Refusing to invoke method $method of handler $op which starts with underscore.", E_USER_WARNING);
header("Content-Type: text/json");
print Errors::to_json(Errors::E_UNAUTHORIZED);
$scope->getSpan()->setTag('error', Errors::E_UNAUTHORIZED);
$scope->close();
return;
}
if ($override) {
/** @var Plugin|IHandler|ICatchall $handler */
$handler = $override;
} else {
$reflection = new ReflectionClass($op);
$handler = $reflection->newInstanceWithoutConstructor();
}
if (implements_interface($handler, 'IHandler')) {
$h_scope = Tracer::start("construct/$op");
$handler->__construct($_REQUEST);
$h_scope->close();
if (validate_csrf($csrf_token) || $handler->csrf_ignore($method)) {
$b_scope = Tracer::start("before/$method");
$before = $handler->before($method);
$b_scope->close();
if ($before) {
$m_scope = Tracer::start("method/$method");
if ($method && method_exists($handler, $method)) {
$reflection = new ReflectionMethod($handler, $method);
if ($reflection->getNumberOfRequiredParameters() == 0) {
$handler->$method();
} else {
user_error("Refusing to invoke method $method of handler $op which has required parameters.", E_USER_WARNING);
header("Content-Type: text/json");
$m_scope->getSpan()->setTag('error', Errors::E_UNAUTHORIZED);
print Errors::to_json(Errors::E_UNAUTHORIZED);
}
} else {
if (method_exists($handler, "catchall")) {
$handler->catchall($method);
} else {
header("Content-Type: text/json");
$m_scope->getSpan()->setTag('error', Errors::E_UNKNOWN_METHOD);
print Errors::to_json(Errors::E_UNKNOWN_METHOD, ["info" => get_class($handler) . "->$method"]);
}
}
$m_scope->close();
$a_scope = Tracer::start("after/$method");
$handler->after();
$a_scope->close();
$scope->close();
return;
} else {
header("Content-Type: text/json");
print Errors::to_json(Errors::E_UNAUTHORIZED);
$scope->getSpan()->setTag('error', Errors::E_UNAUTHORIZED);
$scope->close();
return;
}
} else {
user_error("Refusing to invoke method $method of handler $op with invalid CSRF token.", E_USER_WARNING);
header("Content-Type: text/json");
print Errors::to_json(Errors::E_UNAUTHORIZED);
$scope->getSpan()->setTag('error', Errors::E_UNAUTHORIZED);
$scope->close();
return;
}
}
}
header("Content-Type: text/json");
print Errors::to_json(Errors::E_UNKNOWN_METHOD, [ "info" => (isset($handler) ? get_class($handler) : "UNKNOWN:".$op) . "->$method"]);
$scope->getSpan()->setTag('error', Errors::E_UNKNOWN_METHOD);
$scope->close();
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