1 files changed, 118 insertions, 0 deletions
diff --git a/vendor/nelexa/zip/src/PhpZip/Extra/Fields/Zip64ExtraField.php b/vendor/nelexa/zip/src/PhpZip/Extra/Fields/Zip64ExtraField.php
new file mode 100644
index 0000000..52c3e38
--- /dev/null
+++ b/vendor/nelexa/zip/src/PhpZip/Extra/Fields/Zip64ExtraField.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace PhpZip\Extra\Fields;
+
+use PhpZip\Exception\RuntimeException;
+use PhpZip\Extra\ExtraField;
+use PhpZip\Model\ZipEntry;
+use PhpZip\Util\PackUtil;
+
+/**
+ * ZIP64 Extra Field
+ *
+ * @see https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT .ZIP File Format Specification
+ * @author Ne-Lexa alexey@nelexa.ru
+ * @license MIT
+ */
+class Zip64ExtraField implements ExtraField
+{
+    /** The Header ID for a ZIP64 Extended Information Extra Field. */
+    const ZIP64_HEADER_ID = 0x0001;
+    /**
+     * @var ZipEntry
+     */
+    protected $entry;
+
+    /**
+     * Zip64ExtraField constructor.
+     * @param ZipEntry $entry
+     */
+    public function __construct(ZipEntry $entry = null)
+    {
+        if (null !== $entry) {
+            $this->setEntry($entry);
+        }
+    }
+
+    /**
+     * @param ZipEntry $entry
+     */
+    public function setEntry(ZipEntry $entry)
+    {
+        $this->entry = $entry;
+    }
+
+    /**
+     * Returns the Header ID (type) of this Extra Field.
+     * The Header ID is an unsigned short integer (two bytes)
+     * which must be constant during the life cycle of this object.
+     *
+     * @return int
+     */
+    public static function getHeaderId()
+    {
+        return 0x0001;
+    }
+
+    /**
+     * Serializes a Data Block.
+     * @return string
+     * @throws RuntimeException
+     */
+    public function serialize()
+    {
+        if (null === $this->entry) {
+            throw new RuntimeException("entry is null");
+        }
+        $data = '';
+        // Write out Uncompressed Size.
+        $size = $this->entry->getSize();
+        if (0xffffffff <= $size) {
+            $data .= PackUtil::packLongLE($size);
+        }
+        // Write out Compressed Size.
+        $compressedSize = $this->entry->getCompressedSize();
+        if (0xffffffff <= $compressedSize) {
+            $data .= PackUtil::packLongLE($compressedSize);
+        }
+        // Write out Relative Header Offset.
+        $offset = $this->entry->getOffset();
+        if (0xffffffff <= $offset) {
+            $data .= PackUtil::packLongLE($offset);
+        }
+        return $data;
+    }
+
+    /**
+     * Initializes this Extra Field by deserializing a Data Block.
+     * @param string $data
+     * @throws RuntimeException
+     */
+    public function deserialize($data)
+    {
+        if (null === $this->entry) {
+            throw new RuntimeException("entry is null");
+        }
+        $off = 0;
+        // Read in Uncompressed Size.
+        $size = $this->entry->getSize();
+        if (0xffffffff <= $size) {
+            assert(0xffffffff === $size);
+            $this->entry->setSize(PackUtil::unpackLongLE(substr($data, $off, 8)));
+            $off += 8;
+        }
+        // Read in Compressed Size.
+        $compressedSize = $this->entry->getCompressedSize();
+        if (0xffffffff <= $compressedSize) {
+            assert(0xffffffff === $compressedSize);
+            $this->entry->setCompressedSize(PackUtil::unpackLongLE(substr($data, $off, 8)));
+            $off += 8;
+        }
+        // Read in Relative Header Offset.
+        $offset = $this->entry->getOffset();
+        if (0xffffffff <= $offset) {
+            assert(0xffffffff, $offset);
+            $this->entry->setOffset(PackUtil::unpackLongLE(substr($data, $off, 8)));
+        }
+    }
+}