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<?php declare(strict_types = 1); |
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namespace PeeHaa\AsyncTwitter\Api\Client; |
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use Amp\Artax\Notify; |
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use Amp\Deferred; |
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use Amp\Promise; |
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use ExceptionalJSON\DecodeErrorException; |
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use PeeHaa\AsyncTwitter\Api\Client\Exception\StreamFailureException; |
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use PeeHaa\AsyncTwitter\Api\Client\Exception\StreamOpenFailureException; |
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use PeeHaa\AsyncTwitter\Api\StatusStream; |
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class StreamReader |
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{ |
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/** |
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* @uses processResponseHeaders |
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* @uses processBodyData |
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* @uses processResponseComplete |
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* @uses processError |
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*/ |
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private static $progressHandlers = [ |
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Notify::RESPONSE_HEADERS => 'processResponseHeaders', |
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Notify::RESPONSE_BODY_DATA => 'processBodyData', |
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Notify::RESPONSE => 'processResponseComplete', |
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Notify::ERROR => 'processError', |
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]; |
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/** |
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* @var StatusStream |
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*/ |
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private $stream; |
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private $openDeferred; |
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private $inflateCtx; |
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private $rawDataBuffer = ''; |
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public function __construct() |
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{ |
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$this->openDeferred = new Deferred; |
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} |
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private function processBodyData(string $data) |
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{ |
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if ($this->stream === null) { |
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return; |
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} |
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/** @noinspection PhpUndefinedFunctionInspection */ |
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$this->rawDataBuffer .= $this->inflateCtx !== null |
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? \inflate_add($this->inflateCtx, $data) |
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: $data; |
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while (false !== $pos = \strpos($this->rawDataBuffer, "\r\n")) { |
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if ($pos > 0) { |
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try { |
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$this->stream->update(\json_try_decode(\substr($this->rawDataBuffer, 0, $pos), true)); |
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} catch (DecodeErrorException $e) { |
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$this->stream->fail(new StreamFailureException('Error decoding stream data', 0, $e)); |
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$this->inflateCtx = $this->stream = null; |
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return; |
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} |
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} |
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$this->rawDataBuffer = (string)\substr($this->rawDataBuffer, $pos + 2); |
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} |
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} |
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private function processResponseHeaders(array $info) |
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{ |
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static $zlibEncodingMap = [ |
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'gzip' => ZLIB_ENCODING_GZIP, |
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'x-gzip' => ZLIB_ENCODING_GZIP, // recommended for compatibility by MDN |
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'deflate' => ZLIB_ENCODING_DEFLATE, |
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]; |
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$status = (int)($info['status'] ?? -1); |
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$headers = (array)($info['headers'] ?? []); |
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if ($status !== 200) { |
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$this->openDeferred->fail(new StreamOpenFailureException("Server responded with HTTP status {$status}")); |
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} |
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$encoding = 'identity'; |
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foreach ($headers as $name => $values) { |
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if (\strtolower($name) !== 'content-encoding') { |
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continue; |
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} |
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$encoding = \strtolower($values[0] ?? 'identity'); |
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} |
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if ($encoding !== 'identity') { |
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if (!isset($zlibEncodingMap[$encoding])) { |
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$this->openDeferred->fail( |
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new StreamOpenFailureException("Server is using an encoding format I don't understand: {$encoding}") |
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); |
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} |
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/** @noinspection PhpUndefinedFunctionInspection */ |
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$this->inflateCtx = \inflate_init($zlibEncodingMap[$encoding]); |
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} |
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$this->stream = new StatusStream; |
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$this->openDeferred->succeed($this->stream); |
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} |
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private function processError(\Throwable $error) |
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{ |
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if ($this->stream === null) { |
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return; |
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} |
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$this->stream->fail(new StreamFailureException("HTTP request error", 0, $error)); |
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$this->inflateCtx = $this->stream = null; |
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} |
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private function processResponseComplete() |
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{ |
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if ($this->stream === null) { |
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return; |
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} |
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$this->stream->end(); |
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$this->inflateCtx = $this->stream = null; |
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} |
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public function awaitStreamOpen(): Promise |
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{ |
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return $this->openDeferred->promise(); |
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} |
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public function onProgress(array $data) |
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{ |
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if (!isset(self::$progressHandlers[$data[0]])) { |
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return; |
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} |
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\call_user_func([$this, self::$progressHandlers[$data[0]]], $data[1]); |
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} |
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} |
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PeeHaa /
AsyncTwitter
Loading history...
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: