107 lines
2.9 KiB
PHP
107 lines
2.9 KiB
PHP
<?php
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declare(strict_types=1);
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class ApiRequestEvent extends Event
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{
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public $method; // string
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public $params; // array|object
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public $id; // int|string
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public $result; // any
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public function __construct(string $method, $params, $id)
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{
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parent::__construct();
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$this->method = $method;
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$this->params = $params;
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$this->id = $id;
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$this->result = null;
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}
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public static function from_array(array $req)
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{
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$method = $req["method"];
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$params = $req["params"] ?? [];
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$id = $req["id"];
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return new ApiRequestEvent($method, $params, $id);
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}
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}
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class JsonRpc extends Extension
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{
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public function onPageRequest(PageRequestEvent $event)
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{
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global $page;
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if ($event->page_matches("api/json")) {
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$page->set_mode(PageMode::DATA);
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$in = json_decode(file_get_contents('php://input'), true);
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// $in is a request
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if (array_key_exists("jsonrpc", $in)) {
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$out = $this->get_response($in);
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if (!is_null($out)) {
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$page->set_data(json_encode($out));
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}
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}
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// assume $in is a list of requests
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else {
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$out = [];
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foreach ($in as $req) {
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$res = $this->get_response($req);
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if (!is_null($res)) {
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$out[] = $res;
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}
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}
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$page->set_data(json_encode($out));
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}
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}
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}
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public function onCommand(CommandEvent $event)
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{
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if ($event->cmd == "help") {
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print "\tjson-rpc <method> <params>\n";
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print "\t\teg 'json-rpc get-posts'\n\n";
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}
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if ($event->cmd == "json-rpc") {
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print(json_encode($this->get_response([
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"id" => 1,
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"method" => $event->args[0],
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"params" => json_decode($event->args[1] ?? "[]"),
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]), JSON_PRETTY_PRINT) . "\n");
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}
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}
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private function get_response(array $req): ?array
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{
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$evt = ApiRequestEvent::from_array($req);
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try {
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send_event($evt);
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if (is_null($evt->id)) {
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return null;
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}
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return [
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"jsonrpc" => "2.0",
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"result" => $evt->result,
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"id" => $evt->id,
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];
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} catch (Throwable $e) {
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return [
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"jsonrpc" => "2.0",
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"error" => [
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"code" => -1,
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"message" => $e->getMessage(),
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"data" => null,
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],
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"id" => $evt->id,
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];
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}
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}
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public function onApiRequest(ApiRequestEvent $event)
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{
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if ($event->method == "echo") {
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$event->result = $event->params;
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}
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}
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}
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