Add epub loader resource

resources/epub-loader/ZipFile.class.php

@@ -0,0 +1,119 @@
+<?php
+/**
+ * ZipFile class
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Didier Corbière <didier.corbiere@opale-concept.com>
+ */
+
+/**
+ * ZipFile class allows to open files inside a zip file with the standard php zip functions
+ */
+class ZipFile
+{
+	private $mZip;
+	private $mEntries;
+
+	public function __construct()
+	{
+		$this->mZip = null;
+		$this->mEntries = null;
+	}
+
+	/**
+	 * Destructor
+	 */
+	public function __destruct()
+	{
+		$this->Close();
+	}
+
+	/**
+	 * Open a zip file and read it's entries
+	 *
+	 * @param string $inFileName
+	 * @return boolean True if zip file has been correctly opended, else false
+	 */
+	public function Open($inFileName)
+	{
+		$this->Close();
+
+		$this->mZip = zip_open($inFileName);
+		if (!$this->mZip) {
+			return false;
+		}
+
+		$this->mEntries = array();
+
+		while ($entry = zip_read($this->mZip)) {
+			$fileName = zip_entry_name($entry);
+			$this->mEntries[$fileName] = $entry;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Check if a file exist in the zip entries
+	 *
+	 * @param string $inFileName File to search
+	 *
+	 * @return boolean True if the file exist, else false
+	 */
+	public function FileExists($inFileName)
+	{
+		if (!isset($this->mZip)) {
+			return false;
+		}
+
+		if (!isset($this->mEntries[$inFileName])) {
+			return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Read the content of a file in the zip entries
+	 *
+	 * @param string $inFileName File to search
+	 *
+	 * @return mixed File content the file exist, else false
+	 */
+	public function FileRead($inFileName)
+	{
+		if (!isset($this->mZip)) {
+			return false;
+		}
+
+		if (!isset($this->mEntries[$inFileName])) {
+			return false;
+		}
+
+		$entry = $this->mEntries[$inFileName];
+		if (!zip_entry_open($this->mZip, $entry)) {
+			return false;
+		}
+		$data = zip_entry_read($entry, zip_entry_filesize($entry));
+		zip_entry_close($entry);
+
+		return $data;
+	}
+
+	/**
+	 * Close the zip file
+	 *
+	 * @return void
+	 */
+	public function Close()
+	{
+		if (!isset($this->mZip)) {
+			return false;
+		}
+
+		zip_close($this->mZip);
+	}
+
+}
+
+?>