mirror of
https://codeberg.org/streams/streams.git
synced 2024-09-22 18:15:20 +00:00
126 lines
No EOL
2.4 KiB
PHP
126 lines
No EOL
2.4 KiB
PHP
<?php
|
|
|
|
namespace Zotlabs\Lib;
|
|
|
|
use Zotlabs\Web\HTTPSig;
|
|
|
|
|
|
class ZotURL {
|
|
|
|
static public function fetch($url,$channel,$hub = null) {
|
|
|
|
$ret = [ 'success' => false ];
|
|
|
|
if(strpos($url,'x-zot:') !== 0) {
|
|
return $ret;
|
|
}
|
|
|
|
|
|
if(! $url) {
|
|
return $ret;
|
|
}
|
|
|
|
$portable_url = substr($url,6);
|
|
$u = explode('/',$portable_url);
|
|
$portable_id = $u[0];
|
|
|
|
$hosts = self::lookup($portable_id,$hub);
|
|
|
|
if(! $hosts) {
|
|
return $ret;
|
|
}
|
|
|
|
foreach($hosts as $h) {
|
|
$newurl = $h . '/id/' . $portable_url;
|
|
|
|
$m = parse_url($newurl);
|
|
|
|
$data = json_encode([ 'zot_token' => random_string() ]);
|
|
|
|
if($channel && $m) {
|
|
|
|
$headers = [
|
|
'Accept' => 'application/x-zot+json',
|
|
'Content-Type' => 'application/x-zot+json',
|
|
'X-Zot-Token' => random_string(),
|
|
'Digest' => HTTPSig::generate_digest_header($data),
|
|
'Host' => $m['host'],
|
|
'(request-target)' => 'post ' . get_request_string($newurl)
|
|
];
|
|
$h = HTTPSig::create_sig($headers,$channel['channel_prvkey'],channel_url($channel),false);
|
|
}
|
|
else {
|
|
$h = [ 'Accept: application/x-zot+json' ];
|
|
}
|
|
|
|
$result = [];
|
|
|
|
$redirects = 0;
|
|
$x = z_post_url($newurl,$data,$redirects, [ 'headers' => $h ] );
|
|
if($x['success']) {
|
|
return $x;
|
|
}
|
|
}
|
|
|
|
return $ret;
|
|
|
|
}
|
|
|
|
static public function is_zoturl($s) {
|
|
|
|
if(strpos($url,'x-zot:') === 0) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
static public function lookup($portable_id,$hub) {
|
|
|
|
$r = q("select * from hubloc left join site on hubloc_url = site_url where hubloc_hash = '%s' and site_dead = 0 order by hubloc_primary desc",
|
|
dbesc($portable_id)
|
|
);
|
|
|
|
if(! $r) {
|
|
|
|
// extend to network lookup
|
|
|
|
$path = '/q/' . $portable_id;
|
|
|
|
// first check sending hub since they have recently communicated with this object
|
|
|
|
$redirects = 0;
|
|
|
|
if($hub) {
|
|
$x = z_fetch_url($hub['hubloc_url'] . $path, false, $redirects);
|
|
$u = self::parse_response($x);
|
|
if($u) {
|
|
return $u;
|
|
}
|
|
}
|
|
|
|
// If this fails, fallback on directory servers
|
|
|
|
return false;
|
|
}
|
|
return ids_to_array($r,'hubloc_url');
|
|
}
|
|
|
|
|
|
static public function parse_response($arr) {
|
|
if(! $arr['success']) {
|
|
return false;
|
|
}
|
|
$a = json_decode($arr['body'],true);
|
|
if($a['success'] && array_key_exists('results', $a) && is_array($a['results']) && count($a['results'])) {
|
|
foreach($a['results'] as $b) {
|
|
$m = discover_by_webbie($b);
|
|
if($m) {
|
|
return([ $b ]);
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} |