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-rw-r--r--mod/magic.php168
1 files changed, 100 insertions, 68 deletions
diff --git a/mod/magic.php b/mod/magic.php
index ba9e69a49..aead559a7 100644
--- a/mod/magic.php
+++ b/mod/magic.php
@@ -4,81 +4,103 @@
function magic_init(&$a) {
+ $ret = array('success' => false, 'url' => '', 'message' => '');
+ logger('mod_magic: invoked', LOGGER_DEBUG);
+
+ logger('mod_magic: args: ' . print_r($_REQUEST,true),LOGGER_DATA);
+
$addr = ((x($_REQUEST,'addr')) ? $_REQUEST['addr'] : '');
$hash = ((x($_REQUEST,'hash')) ? $_REQUEST['hash'] : '');
$dest = ((x($_REQUEST,'dest')) ? $_REQUEST['dest'] : '');
+ $test = ((x($_REQUEST,'test')) ? intval($_REQUEST['test']) : 0);
+ $rev = ((x($_REQUEST,'rev')) ? intval($_REQUEST['rev']) : 0);
- if($hash) {
- $x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
- where hubloc_hash = '%s' and (hubloc_flags & %d) limit 1",
- dbesc($hash),
- intval(HUBLOC_FLAGS_PRIMARY)
- );
- }
- elseif($addr) {
- $x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
- where xchan_addr = '%s' and (hubloc_flags & %d) limit 1",
- dbesc($addr),
- intval(HUBLOC_FLAGS_PRIMARY)
- );
- }
- else {
- // See if we know anybody at the dest site that will unlock the door for us
- $b = explode('/',$dest);
- if(count($b) >= 2)
- $u = $b[0] . '//' . $b[2];
-
- $x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
- where hubloc_url = '%s' limit 1",
- dbesc($u)
- );
+ $parsed = parse_url($dest);
+ if(! $parsed) {
+ if($test) {
+ $ret['message'] .= 'could not parse ' . $dest . EOL;
+ return($ret);
+ }
+ goaway($dest);
}
+ $basepath = $parsed['scheme'] . '://' . $parsed['host'] . (($parsed['port']) ? ':' . $parsed['port'] : '');
+ $x = q("select * from hubloc where hubloc_url = '%s' order by hubloc_connected desc limit 1",
+ dbesc($basepath)
+ );
+
if(! $x) {
- // Finger them if they've never been seen here before
-
- if($addr) {
- $ret = zot_finger($addr,null);
- if($ret['success']) {
- $j = json_decode($ret['body'],true);
- if($j)
- import_xchan($j);
- $x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
- where xchan_addr = '%s' and (hubloc_flags & %d) limit 1",
- dbesc($addr),
- intval(HUBLOC_FLAGS_PRIMARY)
- );
- }
+ /*
+ * We have no records for, or prior communications with this hub.
+ * If an address was supplied, let's finger them to create a hub record.
+ * Otherwise we'll use the special address '[system]' which will return
+ * either a system channel or the first available normal channel. We don't
+ * really care about what channel is returned - we need the hub information
+ * from that response so that we can create signed auth packets destined
+ * for that hub.
+ *
+ */
+
+ $ret = zot_finger((($addr) ? $addr : '[system]@' . $parsed['host']),null);
+ if($ret['success']) {
+ $j = json_decode($ret['body'],true);
+ if($j)
+ import_xchan($j);
+
+ // Now try again
+
+ $x = q("select * from hubloc where hubloc_url = '%s' order by hubloc_connected desc limit 1",
+ dbesc($basepath)
+ );
}
}
if(! $x) {
- notice( t('Channel not found.') . EOL);
- return;
+ if($rev)
+ goaway($dest);
+ else {
+ logger('mod_magic: no channels found for requested hub.' . print_r($_REQUEST,true));
+ if($test) {
+ $ret['message'] .= 'This site has no previous connections with ' . $basepath . EOL;
+ return $ret;
+ }
+ notice( t('Hub not found.') . EOL);
+ return;
+ }
}
- if($x[0]['hubloc_url'] === z_root()) {
- $webbie = substr($x[0]['hubloc_addr'],0,strpos('@',$x[0]['hubloc_addr']));
- switch($dest) {
- case 'channel':
- $desturl = z_root() . '/channel/' . $webbie;
- break;
- case 'photos':
- $desturl = z_root() . '/photos/' . $webbie;
- break;
- case 'profile':
- $desturl = z_root() . '/profile/' . $webbie;
- break;
- default:
- $desturl = $dest;
- break;
+ // This is ready-made for a plugin that provides a blacklist or "ask me" before blindly authenticating.
+ // By default, we'll proceed without asking.
+
+ $arr = array(
+ 'channel_id' => local_user(),
+ 'xchan' => $x[0],
+ 'destination' => $dest,
+ 'proceed' => true
+ );
+
+ call_hooks('magic_auth',$arr);
+ $dest = $arr['destination'];
+ if(! $arr['proceed']) {
+ if($test) {
+ $ret['message'] .= 'cancelled by plugin.' . EOL;
+ return $ret;
}
+ goaway($dest);
+ }
+
+ if((get_observer_hash()) && ($x[0]['hubloc_url'] === z_root())) {
// We are already authenticated on this site and a registered observer.
// Just redirect.
- goaway($desturl);
+ if($test) {
+ $ret['success'] = true;
+ $ret['message'] .= 'Local site - you are already authenticated.' . EOL;
+ return $ret;
+ }
+ goaway($dest);
}
if(local_user()) {
@@ -90,25 +112,35 @@ function magic_init(&$a) {
$channel['token'] = $token;
$channel['token_sig'] = $token_sig;
-
- $recip = array(array('guid' => $x[0]['hubloc_guid'],'guid_sig' => $x[0]['hubloc_guid_sig']));
-
- $hash = random_string();
-
$r = q("insert into verify ( type, channel, token, meta, created) values ('%s','%d','%s','%s','%s')",
dbesc('auth'),
intval($channel['channel_id']),
dbesc($token),
- dbesc($x[0]['hubloc_hash']),
+ dbesc($x[0]['hubloc_url']),
dbesc(datetime_convert())
);
- goaway($x[0]['hubloc_callback'] . '/' . substr($x[0]['hubloc_addr'],0,strpos($x[0]['hubloc_addr'],'@'))
- . '/?f=&auth=' . $channel['channel_address'] . '@' . $a->get_hostname()
- . '&sec=' . $token . '&dest=' . $dest . '&version=' . ZOT_REVISION);
+ $target_url = $x[0]['hubloc_callback'] . '/?f=&auth=' . urlencode($channel['channel_address'] . '@' . $a->get_hostname())
+ . '&sec=' . $token . '&dest=' . urlencode($dest) . '&version=' . ZOT_REVISION;
+
+ logger('mod_magic: redirecting to: ' . $target_url, LOGGER_DEBUG);
+
+ if($test) {
+ $ret['success'] = true;
+ $ret['url'] = $target_url;
+ $ret['message'] = 'token ' . $token . ' created for channel ' . $channel['channel_id'] . ' for url ' . $x[0]['hubloc_url'] . EOL;
+ return $ret;
+ }
+
+ goaway($target_url);
+
}
- if(strpos($dest,'/'))
- goaway($dest);
- goaway(z_root());
+ if($test) {
+ $ret['message'] = 'Not authenticated or invalid arguments to mod_magic' . EOL;
+ return $ret;
+ }
+
+ goaway($dest);
+
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-08 14:28:20 +0000