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<?php |
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namespace FastAPNS; |
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class Client { |
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const FASTAPNS_BATCH_SIZE_DEFAULT = 1700; |
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const FASTAPNS_BATCH_SUCCESS = 1; |
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const FASTAPNS_BATCH_NEEDS_REWIND = 2; |
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/** |
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* @var ClientStreamSocket |
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*/ |
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private $client_stream_socket; |
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private $batch_size; |
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private $batches; |
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private $badTokens; |
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public function __construct($stream_socket_client, $batch_size = Client::FASTAPNS_BATCH_SIZE_DEFAULT) { |
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$this->client_stream_socket = $stream_socket_client; |
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$this->batch_size = $batch_size; |
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} |
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public function getBadTokens() { |
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return $this->badTokens; |
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} |
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public function send($payload, $tokens, $expiry = 0) { |
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if (!$this->client_stream_socket->isConnected()) { |
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$this->client_stream_socket->connect(); |
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} |
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$payload = is_array($payload) ? json_encode($payload) : $payload; |
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$this->batches = array(); |
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$this->badTokens = array(); |
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$batch = array(); |
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$currentBatchIndex = 0; |
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$total = count($tokens); |
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for ($i = 0; $i < $total; $i += 1) { |
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$batch[] = $tokens[$i]; |
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if (count($batch) === $this->batch_size || $i === $total - 1) { |
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$this->batches[] = $batch; |
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$this->processBatches($payload, $expiry, $total); |
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$batch = array(); |
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$currentBatchIndex += 1; |
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} |
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} |
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} |
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private function processBatches($payload, $expiry, $total) { |
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$maxBatchOffset = count($this->batches) - 1; |
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$batchOffset = $maxBatchOffset; |
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$tokenOffset = 0; |
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while ($batchOffset <= $maxBatchOffset) { |
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$tokenOffset = $this->sendBatch($payload, $expiry, $total, $batchOffset, $tokenOffset); |
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if ($tokenOffset < count($this->batches[$batchOffset])) { |
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$rewind = $this->rewind($batchOffset * $this->batch_size + $tokenOffset); |
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$batchOffset = floor($rewind / $this->batch_size); |
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$tokenOffset = $rewind - ($batchOffset * $this->batch_size); |
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continue; |
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} |
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$batchOffset += 1; |
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$tokenOffset = 0; |
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} |
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} |
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private function sendBatch($payload, $expiry, $total, $batchOffset, $tokenOffset) { |
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$batch = $this->batches[$batchOffset]; |
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$batchSize = count($batch); |
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$confirm = $batchOffset == ceil($total / $this->batch_size) - 1; |
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while ($tokenOffset < $batchSize) { |
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$token = $batch[$tokenOffset]; |
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$notification_bytes = chr(1); |
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$notification_bytes .= pack('N', ($batchOffset * $this->batch_size) + $tokenOffset); |
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$notification_bytes .= pack('N', $expiry); |
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$notification_bytes .= chr(0) . chr(32); |
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$notification_bytes .= pack('H*', $token); |
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$notification_bytes .= chr(0) . chr(mb_strlen($payload)); |
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$notification_bytes .= $payload; |
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$result = $this->client_stream_socket->write($notification_bytes); |
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if ($result == ClientStreamSocket::FASTAPNS_STATUS_WRITABLE) { |
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continue; |
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} |
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if ($result == ClientStreamSocket::FASTAPNS_STATUS_READABLE) { |
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return $tokenOffset; |
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} |
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if ($confirm && $tokenOffset == $batchSize - 1) { |
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$result = $this->client_stream_socket->status(TRUE); |
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if ($result == ClientStreamSocket::FASTAPNS_STATUS_READABLE) { |
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return $tokenOffset; |
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} |
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} |
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$tokenOffset += 1; |
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} |
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return $tokenOffset; |
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} |
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private function rewind($currentPointer) { |
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$rewind = $currentPointer; |
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$socket = $this->client_stream_socket; |
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$error = $socket->read(); |
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if (!empty($error)) { |
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$rewind = $error['identifier']; |
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if ($error['status'] === 8) { |
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$batchIndex = (int) floor($rewind / $this->batch_size); |
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$tokenIndex = $rewind % $this->batch_size; |
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$this->badTokens[] = $this->batches[$batchIndex][$tokenIndex]; |
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$rewind += 1; |
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} else if ($error['status'] === 10) { |
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$socket->reconnect(); |
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} else { |
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throw new \Exception('Unrecoverable error sending notification: please check your payload.'); |
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} |
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} else { |
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$socket->reconnect(); |
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} |
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return $rewind; |
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} |
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} |
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samtny /
fastapns
