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rewrite the webfinger discovery logic

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This commit is contained in:
redmatrix 2016-03-22 19:58:59 -07:00
parent 51a840f46a
commit 6f2ba0c619
5 changed files with 264 additions and 259 deletions
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23
include/crypto.php
View File

@ -308,11 +308,33 @@ function metorsa($m,$e) {
return $key;
}
function salmon_key($pubkey) {
pemtome($pubkey,$m,$e);
return 'RSA' . '.' . base64url_encode($m,true) . '.' . base64url_encode($e,true) ;
}
function convert_salmon_key($key) {
if(strstr($key,','))
$rawkey = substr($key,strpos($key,',')+1);
else
$rawkey = substr($key,5);
$key_info = explode('.',$rawkey);
$m = base64url_decode($key_info[1]);
$e = base64url_decode($key_info[2]);
logger('key details: ' . print_r($key_info,true), LOGGER_DATA);
$salmon_key = metopem($m,$e);
return $salmon_key;
}
function z_obscure($s) {
return json_encode(crypto_encapsulate($s,get_config('system','pubkey')));
}
@ -322,3 +344,4 @@ function z_unobscure($s) {
return $s;
return crypto_unencapsulate(json_decode($s,true),get_config('system','prvkey'));
}

476
include/network.php
View File

@ -1061,32 +1061,16 @@ function discover_by_url($url,$arr = null) {
}
function convert_salmon_key($key) {
if(strstr($key,','))
$rawkey = substr($key,strpos($key,',')+1);
else
$rawkey = substr($key,5);
$key_info = explode('.',$rawkey);
$m = base64url_decode($key_info[1]);
$e = base64url_decode($key_info[2]);
logger('key details: ' . print_r($key_info,true), LOGGER_DEBUG);
$salmon_key = metopem($m,$e);
return $salmon_key;
}
function discover_by_webbie($webbie) {
require_once('library/HTML5/Parser.php');
$result = array();
$network = null;
$result = array();
$network = null;
$diaspora = false;
$gnusoc = false;
$gnusoc = false;
$dfrn = false;
$has_salmon = false;
$salmon_key = false;
@ -1094,7 +1078,6 @@ function discover_by_webbie($webbie) {
$diaspora_base = '';
$diaspora_guid = '';
$diaspora_key = '';
$dfrn = false;
$webbie = strtolower($webbie);
@ -1102,6 +1085,10 @@ function discover_by_webbie($webbie) {
if($x && array_key_exists('links',$x) && $x['links']) {
foreach($x['links'] as $link) {
if(array_key_exists('rel',$link)) {
// If we discover zot - don't search further; grab the info and get out of
// here.
if($link['rel'] == 'http://purl.org/zot/protocol') {
logger('discover_by_webbie: zot found for ' . $webbie, LOGGER_DEBUG);
if(array_key_exists('zot',$x) && $x['zot']['success'])
@ -1115,6 +1102,9 @@ function discover_by_webbie($webbie) {
}
}
}
if($link['rel'] == NAMESPACE_DFRN) {
$dfrn = $link['href'];
}
if($link['rel'] == 'magic-public-key') {
if(substr($link['href'],0,5) === 'data:') {
$salmon_key = convert_salmon_key($link['href']);
@ -1131,88 +1121,40 @@ function discover_by_webbie($webbie) {
}
}
logger('webfing: ' . print_r($x,true), LOGGER_DATA, LOG_INFO);
logger('webfinger: ' . print_r($x,true), LOGGER_DATA, LOG_INFO);
$arr = array('address' => $webbie, 'success' => false, 'webfinger' => $x);
call_hooks('discover_channel_webfinger', $arr);
if($arr['success'])
return true;
if($salmon_key && $has_salmon && $atom_feed) {
$gnusoc = true;
$addr = $x['address'];
$aliases = array();
$m = parse_url($x['location']);
// Now let's make some decisions on what we may need
// to obtain further info
$k = z_fetch_url($atom_feed);
if($k['success'])
$feed_meta = feed_meta($k['body']);
$probe_atom = false;
$probe_old = false;
$probe_hcard = false;
// stash any discovered pubsubhubbub hubs in case we need to follow them
// this will save an expensive lookup later
$address = '';
$location = '';
$nickname = '';
$fullname = '';
$avatar = '';
$pubkey = '';
if($feed_meta['hubs'])
set_xconfig($addr,'system','push_hubs',$feed_meta['hubs']);
if(array_key_exists('address',$x))
$address = $x['address'];
if(array_key_exists('location',$x))
$location = $x['location'];
if(array_key_exists('nickname',$x))
$nickname = $x['nickname'];
if($feed_meta && $feed_meta['author']) {
$r = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($addr)
);
if($r) {
$r = q("update xchan set xchan_name = '%s', xchan_network = '%s', xchan_name_date = '%s' where xchan_hash = '%s' limit 1",
dbesc(($feed_meta['author']['author_name']) ? $feed_meta['author']['author_name'] : $x['nickname']),
dbesc('gnusoc'),
dbesc(datetime_convert()),
dbesc($addr)
);
}
else {
$r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_pubkey, xchan_addr, xchan_url, xchan_name, xchan_network, xchan_name_date ) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ",
dbesc($addr),
dbesc($x['location']),
dbesc($salmon_key),
dbesc($addr),
dbesc($x['location']),
dbesc(($feed_meta['author']['author_name']) ? $feed_meta['author']['author_name'] : $x['nickname']),
dbesc('gnusoc'),
dbescdate(datetime_convert())
);
}
$r = q("select * from hubloc where hubloc_hash = '%s' limit 1",
dbesc($addr)
);
if(! $r) {
$r = q("insert into hubloc ( hubloc_guid, hubloc_hash, hubloc_addr, hubloc_network, hubloc_url, hubloc_host, hubloc_callback, hubloc_updated, hubloc_primary ) values ('%s','%s','%s','%s','%s','%s','%s','%s', 1)",
dbesc($x['location']),
dbesc($addr),
dbesc($addr),
dbesc('gnusoc'),
dbesc($m['scheme'] . '://' . $m['host']),
dbesc($m['host']),
dbesc($salmon),
dbescdate(datetime_convert())
);
}
$photos = import_xchan_photo($feed_meta['author']['author_photo'],$addr);
$r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s'",
dbescdate(datetime_convert()),
dbesc($photos[0]),
dbesc($photos[1]),
dbesc($photos[2]),
dbesc($photos[3]),
dbesc($addr)
);
return true;
}
}
else {
if(! $x)
$probe_old = true;
if($probe_old) {
$x = old_webfinger($webbie);
if($x) {
logger('old_webfinger: ' . print_r($x,true));
@ -1245,174 +1187,194 @@ function discover_by_webbie($webbie) {
$pubkey = $diaspora_key;
$diaspora = true;
}
if($link['@attributes']['rel'] == 'magic-public-key') {
if(substr($link['@attributes']['href'],0,5) === 'data:') {
$salmon_key = convert_salmon_key($link['@attributes']['href']);
}
}
if($link['@attributes']['rel'] == 'salmon') {
$has_salmon = true;
$salmon = $link['@attributes']['href'];
}
if($link['@attributes']['rel'] == 'http://schemas.google.com/g/2010#updates-from') {
$atom_feed = $link['@attributes']['href'];
}
if($link['@attributes']['rel'] === 'alias') {
$aliases[] = $link['@attributes']['href'];
}
if($link['@attributes']['rel'] === 'subject') {
$subject = $link['@attributes']['href'];
}
}
}
if($diaspora && $diaspora_base && $diaspora_guid) {
$guid = $diaspora_guid;
$diaspora_base = trim($diaspora_base,'/');
$notify = $diaspora_base . '/receive';
if(strpos($webbie,'@')) {
$addr = str_replace('acct:', '', $webbie);
$hostname = substr($webbie,strpos($webbie,'@')+1);
}
$network = 'diaspora';
// until we get a dfrn layer, we'll use diaspora protocols for Friendica,
// but give it a different network so we can go back and fix these when we get proper support.
// It really should be just 'friendica' but we also want to distinguish
// between Friendica sites that we can use D* protocols with and those we can't.
// Some Friendica sites will have Diaspora disabled.
if($dfrn)
$network = 'friendica-over-diaspora';
if($hcard) {
$vcard = scrape_vcard($hcard);
$vcard['nick'] = substr($webbie,0,strpos($webbie,'@'));
if(! $vcard['fn'])
$vcard['fn'] = $webbie;
}
$r = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($addr)
);
// fix relative urls
if($vcard['photo'] && (strpos($vcard['photo'],'http') !== 0))
$vcard['photo'] = $diaspora_base . '/' . $vcard['photo'];
/**
*
* Diaspora communications are notoriously unreliable and receiving profile update messages (indeed any messages)
* are pretty much random luck. We'll check the timestamp of the xchan_name_date at a higher level and refresh
* this record once a month; because if you miss a profile update message and they update their profile photo or name
* you're otherwise stuck with stale info until they change their profile again - which could be years from now.
*
*/
if($r) {
$r = q("update xchan set xchan_name = '%s', xchan_network = '%s', xchan_name_date = '%s' where xchan_hash = '%s' limit 1",
dbesc($vcard['fn']),
dbesc($network),
dbesc(datetime_convert()),
dbesc($addr)
);
}
else {
$r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_pubkey, xchan_addr, xchan_url, xchan_name, xchan_network, xchan_name_date ) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ",
dbesc($addr),
dbesc($guid),
dbesc($pubkey),
dbesc($addr),
dbesc($profile),
dbesc($vcard['fn']),
dbesc($network),
dbescdate(datetime_convert())
);
}
$r = q("select * from hubloc where hubloc_hash = '%s' limit 1",
dbesc($webbie)
);
if(! $r) {
$r = q("insert into hubloc ( hubloc_guid, hubloc_hash, hubloc_addr, hubloc_network, hubloc_url, hubloc_host, hubloc_callback, hubloc_updated, hubloc_primary ) values ('%s','%s','%s','%s','%s','%s','%s','%s', 1)",
dbesc($guid),
dbesc($addr),
dbesc($addr),
dbesc($network),
dbesc(trim($diaspora_base,'/')),
dbesc($hostname),
dbesc($notify),
dbescdate(datetime_convert())
);
}
$photos = import_xchan_photo($vcard['photo'],$addr);
$r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s'",
dbescdate(datetime_convert()),
dbesc($photos[0]),
dbesc($photos[1]),
dbesc($photos[2]),
dbesc($photos[3]),
dbesc($addr)
);
return true;
}
}
if($subject || $aliases) {
if(strpos($webbie,'@')) {
$rhs = substr($webbie,strpos($webbie,'@')+1);
}
else {
$m = parse_url($webbie);
if($m) {
$rhs = $m['host'] . (($m['port']) ? ':' . $m['port'] : '');
}
}
$v = array('subject' => $subject,'aliases' => $aliases);
$address = find_webfinger_address($v,$rhs);
$location = find_webfinger_location($v,$rhs);
if($address)
$nickname = substr($address,0,strpos($address,'@'));
}
if($salmon_key && $has_salmon && $atom_feed && (! $dfrn) && (! $diaspora)) {
$gnusoc = true;
$probe_atom = true;
}
if(! $pubkey)
$pubkey = $salmon_key;
if(($dfrn || $diaspora) && $hcard)
$probe_hcard = true;
if(! $fullname)
$fullname = $nickname;
if($probe_atom) {
$k = z_fetch_url($atom_feed);
if($k['success'])
$feed_meta = feed_meta($k['body']);
if($feed_meta) {
// stash any discovered pubsubhubbub hubs in case we need to follow them
// this will save an expensive lookup later
if($feed_meta['hubs'] && $address) {
set_xconfig($address,'system','push_hubs',$feed_meta['hubs']);
}
if($feed_meta['author']['author_name']) {
$fullname = $feed_meta['author']['author_name'];
}
if(! $avatar) {
if($feed_meta['author']['author_photo'])
$avatar = $feed_meta['author']['author_photo'];
}
}
}
else {
if($probe_hcard) {
$vcard = scrape_vcard($hcard);
if($vcard) {
logger('vcard: ' . print_r($vcard,true), LOGGER_DATA);
if($vcard['fn'])
$fullname = $vcard['fn'];
if($vcard['photo'] && (strpos($vcard['photo'],'http') !== 0))
$vcard['photo'] = $diaspora_base . '/' . $vcard['photo'];
if(! $avatar)
$avatar = $vcard['photo'];
}
}
}
if(($profile) && (! $location))
$location = $profile;
if($location) {
$m = parse_url($location);
$base = $m['scheme'] . '://' . $m['host'];
$host = $m['host'];
}
if($diaspora && $diaspora_base && $diaspora_guid) {
if($dfrn)
$network = 'friendica-over-diaspora';
else
$network = 'diaspora';
$base = trim($diaspora_base,'/');
$notify = $base . '/receive';
}
else {
if($gnusoc) {
$network = 'gnusoc';
$notify = $salmon;
}
}
logger('network: ' . $network);
logger('address: ' . $address);
logger('fullname: ' . $fullname);
logger('pubkey: ' . $pubkey);
logger('location: ' . $location);
// if we have everything we need, let's create the records
if($network && $address && $fullname && $pubkey && $location) {
$r = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($address)
);
if($r) {
$r = q("update xchan set xchan_name = '%s', xchan_network = '%s', xchan_name_date = '%s' where xchan_hash = '%s' limit 1",
dbesc($fullname),
dbesc($network),
dbesc(datetime_convert()),
dbesc($address)
);
}
else {
$r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_pubkey, xchan_addr, xchan_url, xchan_name, xchan_network, xchan_name_date ) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ",
dbesc($address),
dbesc(($diaspora_guid) ? $diaspora_guid : $location),
dbesc($pubkey),
dbesc($address),
dbesc($location),
dbesc($fullname),
dbesc($network),
dbescdate(datetime_convert())
);
}
$r = q("select * from hubloc where hubloc_hash = '%s' limit 1",
dbesc($address)
);
if(! $r) {
$r = q("insert into hubloc ( hubloc_guid, hubloc_hash, hubloc_addr, hubloc_network, hubloc_url, hubloc_host, hubloc_callback, hubloc_updated, hubloc_primary ) values ('%s','%s','%s','%s','%s','%s','%s','%s', 1)",
dbesc(($diaspora_guid) ? $diaspora_guid : $location),
dbesc($address),
dbesc($address),
dbesc($network),
dbesc($base),
dbesc($host),
dbesc($notify),
dbescdate(datetime_convert())
);
}
$photos = import_xchan_photo($avatar,$address);
$r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s'",
dbescdate(datetime_convert()),
dbesc($photos[0]),
dbesc($photos[1]),
dbesc($photos[2]),
dbesc($photos[3]),
dbesc($address)
);
return true;
}
return false;
/*
$vcard['fn'] = notags($vcard['fn']);
$vcard['nick'] = str_replace(' ','',notags($vcard['nick']));
$result['name'] = $vcard['fn'];
$result['nick'] = $vcard['nick'];
$result['guid'] = $guid;
$result['url'] = $profile;
$result['hostname'] = $hostname;
$result['addr'] = $addr;
$result['batch'] = $batch;
$result['notify'] = $notify;
$result['poll'] = $poll;
$result['request'] = $request;
$result['confirm'] = $confirm;
$result['poco'] = $poco;
$result['photo'] = $vcard['photo'];
$result['priority'] = $priority;
$result['network'] = $network;
$result['alias'] = $alias;
$result['pubkey'] = $pubkey;
logger('probe_url: ' . print_r($result,true), LOGGER_DEBUG);
return $result;
*/
/* Sample Diaspora result.
Array
(
[name] => Mike Macgirvin
[nick] => macgirvin
[guid] => a9174a618f8d269a
[url] => https://joindiaspora.com/u/macgirvin
[hostname] => joindiaspora.com
[addr] => macgirvin@joindiaspora.com
[batch] =>
[notify] => https://joindiaspora.com/receive
[poll] => https://joindiaspora.com/public/macgirvin.atom
[request] =>
[confirm] =>
[poco] =>
[photo] => https://joindiaspora.s3.amazonaws.com/uploads/images/thumb_large_fec4e6eef13ae5e56207.jpg
[priority] =>
[network] => diaspora
[alias] =>
[pubkey] => -----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----
)
*/
}
function webfinger_rfc7033($webbie,$zot = false) {
@ -1573,7 +1535,7 @@ function fetch_lrdd_template($host) {
function fetch_xrd_links($url) {
logger('fetch_xrd_links: ' . $url);
logger('fetch_xrd_links: ' . $url, LOGGER_DEBUG);
$redirects = 0;
$x = z_fetch_url($url,false,$redirects,array('timeout' => 20));
@ -1619,6 +1581,10 @@ logger('fetch_xrd_links: ' . $url);
}
}
if(isset($arr['xrd']['subject'])) {
$links[]['@attributes'] = array('rel' => 'subject' , 'href' => $arr['xrd']['subject']);
}
logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
return $links;

17
mod/xrd.php
View File

@ -7,8 +7,12 @@ function xrd_init(&$a) {
$uri = urldecode(notags(trim($_GET['uri'])));
logger('xrd: ' . $uri,LOGGER_DEBUG);
if(substr($uri,0,4) === 'http')
$resource = $uri;
if(substr($uri,0,4) === 'http') {
$uri = str_replace('~','',$uri);
$name = basename($uri);
}
else {
$local = str_replace('acct:', '', $uri);
if(substr($local,0,2) == '//')
@ -35,9 +39,18 @@ function xrd_init(&$a) {
header("Content-type: application/xrd+xml");
$aliases = array('acct:' . $r[0]['channel_address'] . '@' . $a->get_hostname(), z_root() . '/channel/' . $r[0]['channel_address'], z_root() . '/~' . $r[0]['channel_address']);
for($x = 0; $x < count($aliases); $x ++) {
if($aliases[$x] === $resource)
unset($aliases[$x]);
}
$o = replace_macros(get_markup_template('xrd_person.tpl'), array(
'$nick' => $r[0]['channel_address'],
'$accturi' => $uri,
'$accturi' => $resource,
'$aliases' => $aliases,
'$profile_url' => $a->get_baseurl() . '/channel/' . $r[0]['channel_address'],
'$hcard_url' => $a->get_baseurl() . '/hcard/' . $r[0]['channel_address'],
'$atom' => $a->get_baseurl() . '/feed/' . $r[0]['channel_address'],

2
version.inc
View File

@ -1 +1 @@
2016-03-21.1342H
2016-03-22.1343H

5
view/tpl/xrd_person.tpl
View File

@ -2,7 +2,10 @@
<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
<Subject>{{$accturi}}</Subject>
{{if $aliases}}{{foreach $aliases as $a}}
<Alias>{{$a}}</Alias>
{{/foreach}}{{/if}}
<Link rel="http://schemas.google.com/g/2010#updates-from"
type="application/atom+xml"
href="{{$atom}}" />