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WebSub fixes

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More fixes related to https://github.com/friendica/friendica/issues/6128
* Bug when using direct ATOM URL, which ends with .atom after nick name
* Bug when callback URL already has some ?query=parameters (which is
quite usual)
Slight refactoring
This commit is contained in:
Alexandre Alapetite 2018-11-15 12:54:04 +01:00
parent 921094017c
commit 51f0d52100
1 changed files with 21 additions and 14 deletions
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35
mod/pubsubhubbub.php
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@ -50,13 +50,15 @@ function pubsubhubbub_init(App $a) {
Logger::log("$hub_mode request from " . $_SERVER['REMOTE_ADDR']);
// get the nick name from the topic, a bit hacky but needed as a fallback
$nick = substr(strrchr($hub_topic, "/"), 1);
// Normally the url should now contain the nick name as last part of the url
if ($a->argc > 1) {
// Normally the url should now contain the nick name as last part of the url
$nick = $a->argv[1];
} else {
// Get the nick name from the topic as a fallback
$nick = $hub_topic;
}
// Extract nick name and strip any .atom extension
$nick = basename($nick, '.atom');
if (!$nick) {
Logger::log('Bad hub_topic=$hub_topic, ignoring.');
@ -97,18 +99,23 @@ function pubsubhubbub_init(App $a) {
// do subscriber verification according to the PuSH protocol
$hub_challenge = Strings::getRandomHex(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)
$params = http_build_query([
'hub.mode' => $subscribe == 1 ? 'subscribe' : 'unsubscribe',
'hub.topic' => $hub_topic,
'hub.challenge' => $hub_challenge,
'hub.verify_token' => $hub_verify_token,
$fetchResult = Network::fetchUrlFull($hub_callback . "?" . $params);
// 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)
'hub.lease_seconds' => 604800,
]);
$hub_callback = rtrim($hub_callback, ' ?&#');
$separator = parse_url($hub_callback, PHP_URL_QUERY) === null ? '?' : '&';
$fetchResult = Network::fetchUrlFull($hub_callback . $separator . $params);
$body = $fetchResult->getBody();
$ret = $fetchResult->getReturnCode();