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<?php
if(!$config['activitypub']) exit('ActivityPub is disabled via config file.');
$public_key = activitypub_get_key('public');
// generate a key pair, if neccessary
if(!$public_key) {
$key = activitypub_new_key('sha512', 4096, 'RSA');
if(!empty($key)) exit('Fatal error: Could not generate a new key!');
$public_key = $key['key_public'];
}
/*
// old, file-based key system
if(!file_exists(ROOT.DS.'keys'.DS.'id_rsa')) {
if(!is_dir(ROOT.DS.'keys')) {
mkdir(ROOT.DS.'keys');
}
// generate a key pair, if neccessary
$rsa = openssl_pkey_new([
'digest_alg' => 'sha512',
'private_key_bits' => 4096,
'private_key_type' => OPENSSL_KEYTYPE_RSA,
]);
openssl_pkey_export($rsa, $private_key);
$public_key = openssl_pkey_get_details($rsa)['key'];
file_put_contents(ROOT.DS.'keys'.DS.'id_rsa', $private_key);
file_put_contents(ROOT.DS.'keys'.DS.'id_rsa.pub', $public_key);
} else {
$public_key = file_get_contents(ROOT.DS.'keys'.DS.'id_rsa.pub');
}
*/
if(strpos($_SERVER['HTTP_ACCEPT'], 'application/activity+json') !== false):
header('Content-Type: application/ld+json');
?>{
"@context": [
"https://www.w3.org/ns/activitystreams",
"https://w3id.org/security/v1"
],
"id": "<?= $config['url'] ?>/actor",
"type": "Person",
"name": "<?= trim($config['site_title']) ?>",
"summary": "<?= trim($config['site_claim']) ?>",
"preferredUsername": "<?= ltrim($config['microblog_account'], '@') ?>",
"manuallyApprovesFollowers": false,
"discoverable": true,
"publishedDate": "2023-01-01T00:00:00Z",
"icon": {
"url": "<?= $config['url'] ?>/favicon-large.png",
"mediaType": "image/png",
"type": "Image"
},
"inbox": "<?= $config['url'] ?>/inbox",
"outbox": "<?= $config['url'] ?>/outbox",
"followers": "<?= $config['url'] ?>/followers",
"publicKey": {
"id": "<?= $config['url'] ?>/actor#main-key",
"owner": "<?= $config['url'] ?>/actor",
"publicKeyPem": "<?= preg_replace('/\n/', '\n', $public_key) ?>"
}
}
<?php
else:
// this is for people who click through to the profile URL in their mastodon client
header('Location: '.$config['url']);
exit();
endif;
?>
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