Initial implementation of internal PuSH server in Friendica. It has been tested with GNU Social/StatusNet, and subscribe, unsubscribe and pushing new items seem to work.
This commit is contained in:
Mats Sjöberg
parent
19de78e511
commit
2859ce1483
6 changed files with 243 additions and 6 deletions
2
boot.php
2
boot.php
|
|
@ -14,7 +14,7 @@ require_once('include/features.php');
|
|||
define ( 'FRIENDICA_PLATFORM', 'Friendica');
|
||||
define ( 'FRIENDICA_VERSION', '3.2.1745' );
|
||||
define ( 'DFRN_PROTOCOL_VERSION', '2.23' );
|
||||
define ( 'DB_UPDATE_VERSION', 1165 );
|
||||
define ( 'DB_UPDATE_VERSION', 1166 );
|
||||
define ( 'EOL', "<br />\r\n" );
|
||||
define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
|
||||
|
||||
|
|
|
|||
|
|
@ -966,9 +966,18 @@ function notifier_run(&$argv, &$argc){
|
|||
$h = trim($h);
|
||||
if(! strlen($h))
|
||||
continue;
|
||||
$params = 'hub.mode=publish&hub.url=' . urlencode($a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
|
||||
|
||||
if ($h === '[internal]') {
|
||||
// Set push flag for PuSH subscribers to this topic,
|
||||
// they will be notified in queue.php
|
||||
q("UPDATE `push_subscriber` SET `push` = 1 " .
|
||||
"WHERE `nickname` = '%s'", dbesc($owner['nickname']));
|
||||
} else {
|
||||
|
||||
$params = 'hub.mode=publish&hub.url=' . urlencode( $a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
|
||||
post_url($h,$params);
|
||||
logger('pubsub: publish: ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
|
||||
}
|
||||
if(count($hubs) > 1)
|
||||
sleep(7); // try and avoid multiple hubs responding at precisely the same time
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,6 +2,51 @@
|
|||
require_once("boot.php");
|
||||
require_once('include/queue_fn.php');
|
||||
|
||||
function handle_pubsubhubbub() {
|
||||
global $a, $db;
|
||||
|
||||
logger('queue [pubsubhubbub]: start');
|
||||
|
||||
// We'll push to each subscriber that has the push flag set,
|
||||
// i.e. there has been an update (set in notifier.php).
|
||||
|
||||
$r = q("SELECT * FROM `push_subscriber` WHERE `push` = 1");
|
||||
|
||||
foreach($r as $rr) {
|
||||
$params = get_feed_for($a, '', $rr['nickname'], $rr['last_update']);
|
||||
$hmac_sig = hash_hmac("sha1", $params, $rr['secret']);
|
||||
|
||||
$headers = array("Content-type: application/atom+xml",
|
||||
sprintf("Link: <%s>;rel=hub," .
|
||||
"<%s>;rel=self",
|
||||
$a->get_baseurl() . '/pubsubhubbub',
|
||||
$rr['topic']),
|
||||
"X-Hub-Signature: sha1=" . $hmac_sig);
|
||||
|
||||
logger('queue [pubsubhubbub]: POST', $headers);
|
||||
|
||||
post_url($rr['callback_url'], $params, $headers);
|
||||
$ret = $a->get_curl_code();
|
||||
|
||||
if ($ret >= 200 && $ret <= 299) {
|
||||
logger('queue [pubsubhubbub]: successfully pushed to ' .
|
||||
$rr['callback_url']);
|
||||
// here we should set push = 0 and update last_update to 'now'
|
||||
$date_now = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
|
||||
q("UPDATE `push_subscriber` SET `push` = 0, last_update = '%s' " .
|
||||
"WHERE id = %d",
|
||||
dbesc($date_now),
|
||||
intval($rr['id']));
|
||||
} else {
|
||||
logger('queue [pubsubhubbub]: error when pushing to ' .
|
||||
$rr['callback_url'] . 'HTTP: ', $ret);
|
||||
// here we should set update some retry counter
|
||||
// or cancel if counter is too high, remove subscription?
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
function queue_run(&$argv, &$argc){
|
||||
global $a, $db;
|
||||
|
||||
|
|
@ -38,6 +83,8 @@ function queue_run(&$argv, &$argc){
|
|||
|
||||
logger('queue: start');
|
||||
|
||||
handle_pubsubhubbub();
|
||||
|
||||
$interval = ((get_config('system','delivery_interval') === false) ? 2 : intval(get_config('system','delivery_interval')));
|
||||
|
||||
$r = q("select * from deliverq where 1");
|
||||
|
|
|
|||
|
|
@ -1554,7 +1554,7 @@ if(! function_exists('feed_hublinks')) {
|
|||
* @return string hub link xml elements
|
||||
*/
|
||||
function feed_hublinks() {
|
||||
|
||||
$a = get_app();
|
||||
$hub = get_config('system','huburl');
|
||||
|
||||
$hubxml = '';
|
||||
|
|
@ -1565,6 +1565,8 @@ function feed_hublinks() {
|
|||
$h = trim($h);
|
||||
if(! strlen($h))
|
||||
continue;
|
||||
if ($h === '[internal]')
|
||||
$h = $a->get_baseurl() . '/pubsubhubbub';
|
||||
$hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
162
mod/pubsubhubbub.php
Normal file
162
mod/pubsubhubbub.php
Normal file
|
|
@ -0,0 +1,162 @@
|
|||
<?php
|
||||
|
||||
function post_var($name) {
|
||||
return (x($_POST, $name)) ? notags(trim($_POST[$name])) : '';
|
||||
}
|
||||
|
||||
function pubsubhubbub_init(&$a) {
|
||||
// PuSH subscription must be considered "public" so just block it
|
||||
// if public access isn't enabled.
|
||||
if (get_config('system', 'block_public')) {
|
||||
http_status_exit(403);
|
||||
}
|
||||
|
||||
// Subscription request from subscriber
|
||||
// https://pubsubhubbub.googlecode.com/git/pubsubhubbub-core-0.4.html#anchor4
|
||||
// Example from GNU Social:
|
||||
// [hub_mode] => subscribe
|
||||
// [hub_callback] => http://status.local/main/push/callback/1
|
||||
// [hub_verify] => sync
|
||||
// [hub_verify_token] => af11...
|
||||
// [hub_secret] => af11...
|
||||
// [hub_topic] => http://friendica.local/dfrn_poll/sazius
|
||||
|
||||
if($_SERVER['REQUEST_METHOD'] === 'POST') {
|
||||
$hub_mode = post_var('hub_mode');
|
||||
$hub_callback = post_var('hub_callback');
|
||||
$hub_verify = post_var('hub_verify');
|
||||
$hub_verify_token = post_var('hub_verify_token');
|
||||
$hub_secret = post_var('hub_secret');
|
||||
$hub_topic = post_var('hub_topic');
|
||||
|
||||
// check for valid hub_mode
|
||||
if ($hub_mode === 'subscribe') {
|
||||
$subscribe = 1;
|
||||
} else if ($hub_mode === 'unsubscribe') {
|
||||
$subscribe = 0;
|
||||
} else {
|
||||
logger("pubsubhubbub: invalid hub_mode=$hub_mode, ignoring.");
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
logger("pubsubhubbub: $hub_mode request from " .
|
||||
$_SERVER['REMOTE_ADDR']);
|
||||
|
||||
// get the nick name from the topic, a bit hacky but needed
|
||||
$nick = substr(strrchr($hub_topic, "/"), 1);
|
||||
|
||||
if (!$nick) {
|
||||
logger('pubsubhubbub: bad hub_topic=$hub_topic, ignoring.');
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
// fetch user from database given the nickname
|
||||
$r = q("SELECT * FROM `user` WHERE `nickname` = '%s'" .
|
||||
" AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
|
||||
dbesc($nick));
|
||||
|
||||
if(!count($r)) {
|
||||
logger('pubsubhubbub: local account not found: ' . $nick);
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
$owner = $r[0];
|
||||
|
||||
// abort if user's wall is supposed to be private
|
||||
if ($r[0]['hidewall']) {
|
||||
logger('pubsubhubbub: local user ' . $nick .
|
||||
'has chosen to hide wall, ignoring.');
|
||||
http_status_exit(403);
|
||||
}
|
||||
|
||||
// get corresponding row from contact table
|
||||
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `blocked` = 0" .
|
||||
" AND `pending` = 0 LIMIT 1",
|
||||
intval($owner['uid']));
|
||||
if(!count($r)) {
|
||||
logger('pubsubhubbub: contact not found.');
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
$contact = $r[0];
|
||||
|
||||
// sanity check that topic URLs are the same
|
||||
if(!link_compare($hub_topic, $contact['poll'])) {
|
||||
logger('pubsubhubbub: hub topic ' . $hub_topic . ' != ' .
|
||||
$contact['poll']);
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
// do subscriber verification according to the PuSH protocol
|
||||
$hub_challenge = random_string(40);
|
||||
$params = 'hub.mode=' .
|
||||
($subscribe == 1 ? 'subscribe' : 'unsubscribe') .
|
||||
'&hub.topic=' . urlencode($hub_topic) .
|
||||
'&hub.challenge=' . $hub_challenge .
|
||||
'&hub.lease_seconds=604800' .
|
||||
'&hub.verify_token=' . $hub_verify_token;
|
||||
|
||||
// lease time is hard coded to one week (in seconds)
|
||||
// we don't actually enforce the lease time because GNU
|
||||
// Social/StatusNet doesn't honour it (yet)
|
||||
|
||||
$body = fetch_url($hub_callback . "?" . $params);
|
||||
$ret = $a->get_curl_code();
|
||||
|
||||
// give up if the HTTP return code wasn't a success (2xx)
|
||||
if ($ret < 200 || $ret > 299) {
|
||||
logger("pubsubhubbub: subscriber verification at $hub_callback ".
|
||||
"returned $ret, ignoring.");
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
// check that the correct hub_challenge code was echoed back
|
||||
if (trim($body) !== $hub_challenge) {
|
||||
logger("pubsubhubbub: subscriber did not echo back ".
|
||||
"hub.challenge, ignoring.");
|
||||
logger("\"$hub_challenge\" != \"".trim($body)."\"");
|
||||
http_status_exit(404);
|
||||
}
|
||||
|
||||
// fetch the old subscription if it exists
|
||||
$r = q("SELECT * FROM `push_subscriber` WHERE `callback_url` = '%s'",
|
||||
dbesc($hub_callback));
|
||||
|
||||
// delete old subscription if it exists
|
||||
q("DELETE FROM `push_subscriber` WHERE `callback_url` = '%s'",
|
||||
dbesc($hub_callback));
|
||||
|
||||
if ($subscribe) {
|
||||
$last_update = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
|
||||
$push_flag = 0;
|
||||
|
||||
// if we are just updating an old subscription, keep the
|
||||
// old values for push and last_update
|
||||
if (count($r)) {
|
||||
$last_update = $r[0]['last_update'];
|
||||
$push_flag = $r[0]['push'];
|
||||
}
|
||||
|
||||
// subscribe means adding the row to the table
|
||||
q("INSERT INTO `push_subscriber` (`uid`, `callback_url`, " .
|
||||
"`topic`, `nickname`, `push`, `last_update`, `secret`) values " .
|
||||
"(%d, '%s', '%s', '%s', %d, '%s', '%s')",
|
||||
intval($owner['uid']),
|
||||
dbesc($hub_callback),
|
||||
dbesc($hub_topic),
|
||||
dbesc($nick),
|
||||
intval($push_flag),
|
||||
dbesc($last_update),
|
||||
dbesc($hub_secret));
|
||||
logger("pubsubhubbub: successfully subscribed [$hub_callback].");
|
||||
} else {
|
||||
logger("pubsubhubbub: successfully unsubscribed [$hub_callback].");
|
||||
// we do nothing here, since the row was already deleted
|
||||
}
|
||||
http_status_exit(202);
|
||||
}
|
||||
|
||||
killme();
|
||||
}
|
||||
|
||||
?>
|
||||
19
update.php
19
update.php
|
|
@ -1,6 +1,6 @@
|
|||
<?php
|
||||
|
||||
define( 'UPDATE_VERSION' , 1165 );
|
||||
define( 'UPDATE_VERSION' , 1166 );
|
||||
|
||||
/**
|
||||
*
|
||||
|
|
@ -1509,3 +1509,20 @@ function update_1164() {
|
|||
|
||||
return UPDATE_SUCCESS;
|
||||
}
|
||||
|
||||
function update_1165() {
|
||||
$r = q("CREATE TABLE IF NOT EXISTS `push_subscriber` (
|
||||
`id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
|
||||
`uid` INT NOT NULL,
|
||||
`callback_url` CHAR( 255 ) NOT NULL,
|
||||
`topic` CHAR( 255 ) NOT NULL,
|
||||
`nickname` CHAR( 255 ) NOT NULL,
|
||||
`push` INT NOT NULL,
|
||||
`last_update` DATETIME NOT NULL,
|
||||
`secret` CHAR( 255 ) NOT NULL
|
||||
) ENGINE = MYISAM DEFAULT CHARSET=utf8 ");
|
||||
if (!$r)
|
||||
return UPDATE_FAILED;
|
||||
|
||||
return UPDATE_SUCCESS;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue