1 files changed, 71 insertions, 0 deletions
diff --git a/vendor/maennchen/zipstream-php/src/DeflateStream.php b/vendor/maennchen/zipstream-php/src/DeflateStream.php
new file mode 100644
index 0000000..8e1e579
--- /dev/null
+++ b/vendor/maennchen/zipstream-php/src/DeflateStream.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ZipStream;
+
+class DeflateStream extends Stream
+{
+    protected $filter;
+
+    /**
+     * @var Option\File
+     */
+    protected $options;
+
+    /**
+     * Rewind stream
+     *
+     * @return void
+     */
+    public function rewind(): void
+    {
+        // deflate filter needs to be removed before rewind
+        if ($this->filter) {
+            $this->removeDeflateFilter();
+            $this->seek(0);
+            $this->addDeflateFilter($this->options);
+        } else {
+            rewind($this->stream);
+        }
+    }
+
+    /**
+     * Remove the deflate filter
+     *
+     * @return void
+     */
+    public function removeDeflateFilter(): void
+    {
+        if (!$this->filter) {
+            return;
+        }
+        stream_filter_remove($this->filter);
+        $this->filter = null;
+    }
+
+    /**
+     * Add a deflate filter
+     *
+     * @param Option\File $options
+     * @return void
+     */
+    public function addDeflateFilter(Option\File $options): void
+    {
+        $this->options = $options;
+        // parameter 4 for stream_filter_append expects array
+        // so we convert the option object in an array
+        $optionsArr = [
+            'comment' => $options->getComment(),
+            'method' => $options->getMethod(),
+            'deflateLevel' => $options->getDeflateLevel(),
+            'time' => $options->getTime(),
+        ];
+        $this->filter = stream_filter_append(
+            $this->stream,
+            'zlib.deflate',
+            STREAM_FILTER_READ,
+            $optionsArr
+        );
+    }
+}