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-rw-r--r--vendor/maennchen/zipstream-php/src/DeflateStream.php71
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
+ );
+ }
+}