From cdd7ad020e165fe680703b6d3319b908b682fb7a Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Fri, 20 Oct 2023 17:12:29 +0300
Subject: jaeger-client -> opentelemetry

---
 vendor/guzzlehttp/psr7/src/InflateStream.php | 37 ++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 vendor/guzzlehttp/psr7/src/InflateStream.php

(limited to 'vendor/guzzlehttp/psr7/src/InflateStream.php')

diff --git a/vendor/guzzlehttp/psr7/src/InflateStream.php b/vendor/guzzlehttp/psr7/src/InflateStream.php
new file mode 100644
index 000000000..599b55da3
--- /dev/null
+++ b/vendor/guzzlehttp/psr7/src/InflateStream.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Uses PHP's zlib.inflate filter to inflate zlib (HTTP deflate, RFC1950) or gzipped (RFC1952) content.
+ *
+ * This stream decorator converts the provided stream to a PHP stream resource,
+ * then appends the zlib.inflate filter. The stream is then converted back
+ * to a Guzzle stream resource to be used as a Guzzle stream.
+ *
+ * @see http://tools.ietf.org/html/rfc1950
+ * @see http://tools.ietf.org/html/rfc1952
+ * @see http://php.net/manual/en/filters.compression.php
+ */
+final class InflateStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    /** @var StreamInterface */
+    private $stream;
+
+    public function __construct(StreamInterface $stream)
+    {
+        $resource = StreamWrapper::getResource($stream);
+        // Specify window=15+32, so zlib will use header detection to both gzip (with header) and zlib data
+        // See http://www.zlib.net/manual.html#Advanced definition of inflateInit2
+        // "Add 32 to windowBits to enable zlib and gzip decoding with automatic header detection"
+        // Default window size is 15.
+        stream_filter_append($resource, 'zlib.inflate', STREAM_FILTER_READ, ['window' => 15 + 32]);
+        $this->stream = $stream->isSeekable() ? new Stream($resource) : new NoSeekStream(new Stream($resource));
+    }
+}
-- 
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