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Group delete pushes with a delete-multiple for the talk clients as th… #939

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Group delete pushes with a delete-multiple for the talk clients as th… #939

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128 changes: 100 additions & 28 deletions lib/Push.php
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,8 @@ class Push {
protected $output;
/** @var array */
protected $payloadsToSend = [];
/** @var array */
protected $deferredDeletes = [];
/** @var bool */
protected $deferPayloads = false;

Expand Down Expand Up @@ -121,6 +123,11 @@ public function deferPayloads(): void {

public function flushPayloads(): void {
$this->deferPayloads = false;

foreach ($this->deferredDeletes as $userId => $deletes) {
$this->createDeletePayloads($userId, $deletes);
}

$this->sendNotificationsToProxies();
}

Expand Down Expand Up @@ -234,7 +241,7 @@ public function pushToDevice(int $id, INotification $notification, ?OutputInterf
}

if (!$this->deferPayloads) {
$this->sendNotificationsToProxies();
$this->flushPayloads();
}
}

Expand All @@ -243,20 +250,59 @@ public function pushDeleteToDevice(string $userId, int $notificationId, string $
return;
}

if (!isset($this->deferredDeletes[$userId])) {
$this->deferredDeletes[$userId] = [];
}

$this->deferredDeletes[$userId] = [
'notificationId' => $notificationId,
'app' => $app,
];

if (!$this->deferPayloads) {
$this->flushPayloads();
}
}

public function createDeletePayloads(string $userId, array $deferredDeletes): void {
if (!$this->config->getSystemValueBool('has_internet_connection', true)) {
return;
}

if (empty($deferredDeletes)) {
return;
}

$user = $this->userManager->get($userId);
if (!($user instanceof IUser)) {
return;
}

$devices = $this->getDevicesForUser($userId);
if ($notificationId !== 0 && $app !== '') {
// Only filter when it's not a single delete
$devices = $this->filterDeviceList($devices, $app);
}

if (empty($devices)) {
return;
}

$deleteAll = !empty(array_filter($deferredDeletes, static function($deferredDelete) {
return $deferredDelete['notificationId'] === 0;
}));

$talkIds = $otherIds = [];
if (!$deleteAll) {
$talkIds = array_map(static function ($deferredDelete) {
return $deferredDelete['notificationId'];
}, array_filter($deferredDeletes, static function($deferredDelete) {
return \in_array($deferredDelete['app'], ['spreed', 'talk', 'admin_notification_talk'], true);
}));

$otherIds = array_map(static function ($deferredDelete) {
return $deferredDelete['notificationId'];
}, array_filter($deferredDeletes, static function($deferredDelete) {
return !\in_array($deferredDelete['app'], ['spreed', 'talk', 'admin_notification_talk'], true);
}));
}

// We don't push to devices that are older than 60 days
$maxAge = time() - 60 * 24 * 60 * 60;

Expand All @@ -267,22 +313,38 @@ public function pushDeleteToDevice(string $userId, int $notificationId, string $
continue;
}

try {
$payload = json_encode($this->encryptAndSignDelete($userKey, $device, $notificationId));

$proxyServer = rtrim($device['proxyserver'], '/');
if (!isset($this->payloadsToSend[$proxyServer])) {
$this->payloadsToSend[$proxyServer] = [];
if ($deleteAll) {
$this->createPayloadsInChunks($userKey, $device, []);
} else if ($device['apptype'] !== 'talk') {
foreach ($otherIds as $id) {
// Only talk clients handle delete-multiple
$this->createPayloadsInChunks($userKey, $device, [$id]);
}
} else {
$ids = $talkIds;
while (!empty($ids)) {
$ids = $this->createPayloadsInChunks($userKey, $device, $ids);
}
$this->payloadsToSend[$proxyServer][] = $payload;
} catch (\InvalidArgumentException $e) {
// Failed to encrypt message for device: public key is invalid
$this->deletePushToken($device['token']);
}
}
}

if (!$this->deferPayloads) {
$this->sendNotificationsToProxies();
protected function createPayloadsInChunks(Key $userKey, array $device, array $ids): array {
try {
$data = $this->encryptAndSignDelete($userKey, $device, $ids);
$payload = json_encode($data['payload']);

$proxyServer = rtrim($device['proxyserver'], '/');
if (!isset($this->payloadsToSend[$proxyServer])) {
$this->payloadsToSend[$proxyServer] = [];
}
$this->payloadsToSend[$proxyServer][] = $payload;

return $data['remaining'];
} catch (\InvalidArgumentException $e) {
// Failed to encrypt message for device: public key is invalid
$this->deletePushToken($device['token']);
return [];
}
}

Expand Down Expand Up @@ -472,21 +534,28 @@ protected function shortenJsonEncodedMultibyte(string $subject, int $dataLength)
/**
* @param Key $userKey
* @param array $device
* @param int $id
* @param int[] $ids
* @return array
* @throws InvalidTokenException
* @throws \InvalidArgumentException
*/
protected function encryptAndSignDelete(Key $userKey, array $device, int $id): array {
if ($id === 0) {
protected function encryptAndSignDelete(Key $userKey, array $device, array $ids): array {
$remainingIds = [];
if (empty($ids)) {
$data = [
'delete-all' => true,
];
} else {
} else if (count($ids) === 1) {
$data = [
'nid' => $id,
'nid' => array_pop($ids),
'delete' => true,
];
} else {
$remainingIds = array_splice($ids, 10);
$data = [
'nids' => $ids,
'delete-multiple' => true,
];
}

if (!openssl_public_encrypt(json_encode($data), $encryptedSubject, $device['devicepublickey'], OPENSSL_PKCS1_PADDING)) {
Expand All @@ -499,12 +568,15 @@ protected function encryptAndSignDelete(Key $userKey, array $device, int $id): a
$base64Signature = base64_encode($signature);

return [
'deviceIdentifier' => $device['deviceidentifier'],
'pushTokenHash' => $device['pushtokenhash'],
'subject' => $base64EncryptedSubject,
'signature' => $base64Signature,
'priority' => 'normal',
'type' => 'background',
'remaining' => $remainingIds,
'payload' => [
'deviceIdentifier' => $device['deviceidentifier'],
'pushTokenHash' => $device['pushtokenhash'],
'subject' => $base64EncryptedSubject,
'signature' => $base64Signature,
'priority' => 'normal',
'type' => 'background',
],
];
}

Expand Down