streams/Code/Daemon/File_importer.php

<?php

namespace Code\Daemon;

use Code\Web\HTTPSig;
use Code\Lib\Channel;
use Code\Lib\Url;

require_once('include/cli_startup.php');
require_once('include/attach.php');
require_once('include/import.php');

class File_importer implements DaemonInterface
{

    public function run(int $argc, array $argv): void
    {

        cli_startup();

        $attach_id = $argv[1];
        $channel_address = $argv[2];
        $hz_server = urldecode($argv[3]);

        $m = parse_url($hz_server);

        $channel = Channel::from_username($channel_address);
        if (! $channel) {
            logger('filehelper: channel not found');
            killme();
        }

        $headers = [
            'X-API-Token'      => random_string(),
            'X-API-Request'    => $hz_server . '/api/z/1.0/file/export?f=&zap_compat=1&file_id=' . $attach_id,
            'Host'             => $m['host'],
            '(request-target)' => 'get /api/z/1.0/file/export?f=&zap_compat=1&file_id=' . $attach_id,
        ];

        $headers = HTTPSig::create_sig($headers, $channel['channel_prvkey'], Channel::url($channel), true, 'sha512');
        $x = Url::get($hz_server . '/api/z/1.0/file/export?f=&zap_compat=1&file_id=' . $attach_id, [ 'headers' => $headers ]);

        if (! $x['success']) {
            logger('no API response', LOGGER_DEBUG);
            return;
        }

        $j = json_decode($x['body'], true);

        sync_files($channel, [$j]);

        killme();
    }
}