Implemented the ability to override the instance of ZipContainer.

ZipContainer will be cloned before writing the zip file.
Tested custom ZipWriter, ZipReader, ZipContainer and ZipFile.

tests/Internal/Epub/EpubFile.php

@@ -0,0 +1,98 @@
+<?php
+
+/** @noinspection PhpComposerExtensionStubsInspection */
+
+namespace PhpZip\Tests\Internal\Epub;
+
+use PhpZip\Constants\ZipPlatform;
+use PhpZip\Exception\ZipEntryNotFoundException;
+use PhpZip\Exception\ZipException;
+use PhpZip\IO\ZipReader;
+use PhpZip\IO\ZipWriter;
+use PhpZip\Model\ImmutableZipContainer;
+use PhpZip\Model\ZipContainer;
+use PhpZip\Model\ZipEntry;
+use PhpZip\ZipFile;
+
+/**
+ * Class EpubFile.
+ *
+ * @property EpubZipContainer $zipContainer
+ */
+class EpubFile extends ZipFile
+{
+    /**
+     * @return ZipWriter
+     */
+    protected function createZipWriter()
+    {
+        return new EpubWriter($this->zipContainer);
+    }
+
+    /**
+     * @param resource $inputStream
+     * @param array    $options
+     *
+     * @return ZipReader
+     */
+    protected function createZipReader($inputStream, array $options = [])
+    {
+        return new EpubReader($inputStream, $options);
+    }
+
+    /**
+     * @param ImmutableZipContainer|null $sourceContainer
+     *
+     * @return ZipContainer
+     */
+    protected function createZipContainer(ImmutableZipContainer $sourceContainer = null)
+    {
+        return new EpubZipContainer($sourceContainer);
+    }
+
+    /**
+     * @param ZipEntry $zipEntry
+     */
+    protected function addZipEntry(ZipEntry $zipEntry)
+    {
+        $zipEntry->setCreatedOS(ZipPlatform::OS_DOS);
+        $zipEntry->setExtractedOS(ZipPlatform::OS_UNIX);
+        parent::addZipEntry($zipEntry);
+    }
+
+    /**
+     * @throws ZipEntryNotFoundException
+     *
+     * @return string
+     */
+    public function getMimeType()
+    {
+        return $this->zipContainer->getMimeType();
+    }
+
+    public function getEpubInfo()
+    {
+        return new EpubInfo($this->getEntryContents($this->getRootFile()));
+    }
+
+    /**
+     * @throws ZipException
+     *
+     * @return string
+     */
+    public function getRootFile()
+    {
+        $entryName = 'META-INF/container.xml';
+        $contents = $this->getEntryContents($entryName);
+        $doc = new \DOMDocument();
+        $doc->loadXML($contents);
+        $xpath = new \DOMXPath($doc);
+        $rootFile = $xpath->evaluate('string(//@full-path)');
+
+        if ($rootFile === '') {
+            throw new ZipException('Incorrect ' . $entryName . ' file format');
+        }
+
+        return $rootFile;
+    }
+}