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lib/classes/ZipArchiveImproved.php

@@ -0,0 +1,123 @@
+<?php
+
+/**
+ * ZipArchiveImproved extends ZipArchive to add some information about the zip file and some functionality.
+ *
+ *
+ *
+ * @author Farzad Ghanei
+ * @uses ZipArchive
+ * @version 1.0.0 2009-01-18
+ */
+class ZipArchiveImproved extends ZipArchive
+{
+    protected $_archiveFileName = null;
+    protected $_newAddedFilesCounter = 0;
+    protected $_newAddedFilesSize = 100;
+
+    /**
+     * returns the name of the archive file.
+     *
+     * @return string
+     */
+    public function getArchiveFileName()
+    {
+        return $this->_archiveFileName;
+    }
+
+    /**
+     * returns the number of files that are going to be added to ZIP
+     * without reopenning the stream to file.
+     *
+     * @return int
+     */
+    public function getNewAddedFilesSize()
+    {
+        return $this->_newAddedFilesSize;
+    }
+
+    /**
+     * sets the number of files that are going to be added to ZIP
+     * without reopenning the stream to file. if no size is specified, default is 100.
+     *
+     * @param int
+     * @return ZipArchiveImproved self reference
+     */
+    public function setNewlAddedFilesSize($size = 100)
+    {
+        if (empty($size) || ! is_int($size) || $size < 1) {
+            $size = 100;
+        }
+        $this->_newAddedFilesSize = $size;
+
+        return $this;
+    }
+
+    /**
+     * opens a stream to a ZIP archive file. calls the ZipArchive::open() internally.
+     * overwrites ZipArchive::open() to add the archiveFileName functionality.
+     *
+     * @param string $fileName
+     * @param int    $flags
+     * return mixed
+     */
+    public function open($fileName, $flags = null)
+    {
+        $this->_archiveFileName = $fileName;
+        $this->_newAddedFilesCounter = 0;
+
+        return parent::open($fileName, $flags);
+    }
+
+    /**
+     * closes the stream to ZIP archive file. calls the ZipArchive::close() internally.
+     * overwrites ZipArchive::close() to add the archiveFileName functionality.
+     *
+     * @return bool
+     */
+    public function close()
+    {
+        $this->_archiveFileName = null;
+        $this->_newAddedFilesCounter = 0;
+
+        return parent::close();
+    }
+
+    /**
+     * closes the connection to ZIP file and openes the connection again.
+     *
+     * @return bool
+     */
+    public function reopen()
+    {
+        $archiveFileName = $this->_archiveFileName;
+        if ( ! $this->close()) {
+            return false;
+        }
+
+        return $this->open($archiveFileName, self::CREATE);
+    }
+
+    /**
+     * adds a file to a ZIP archive from the given path. calls the ZipArchive::addFile() internally.
+     * overwrites ZipArchive::addFile() to handle maximum file connections in operating systems.
+     *
+     * @param  string            $fileName  the path to file to be added to archive
+     * @param  string [optional] $localname the name of the file in the ZIP archive
+     * @return bool
+     */
+    public function addFile($fileName, $localname = null, $start = 0, $length = 0)
+    {
+        if ($this->_newAddedFilesCounter >= $this->_newAddedFilesSize) {
+            $this->reopen();
+        }
+
+        $added = parent::addFile($fileName, $localname, $start, $length);
+
+        if ($added) {
+            $this->_newAddedFilesCounter ++;
+        }
+
+        return $added;
+    }
+}