From ef68436ac04da078ffdcacd7e1f785473a303d45 Mon Sep 17 00:00:00 2001
From: Giulio Cesare Solaroli <giulio.cesare@clipperz.com>
Date: Sun, 02 Oct 2011 23:56:18 +0000
Subject: First version of the newly restructured repository

---
(limited to 'backend/php/src/setup/setup_library/class.zipfile.php')

diff --git a/backend/php/src/setup/setup_library/class.zipfile.php b/backend/php/src/setup/setup_library/class.zipfile.php
new file mode 100644
index 0000000..4bbe779
--- a/dev/null
+++ b/backend/php/src/setup/setup_library/class.zipfile.php
@@ -0,0 +1,212 @@
+<?php
+
+/**
+ * Class to dynamically create a zip file (archive)
+ *
+ * @author Rochak Chauhan. Extended by Joel Wan & Mark Slemko
+ */
+
+class createZip  {
+	var $compressedData = array();
+	var $centralDirectory = array(); // central directory
+	var $endOfCentralDirectory = "\x50\x4b\x05\x06\x00\x00\x00\x00"; //end of Central directory record
+	var $oldOffset = 0;
+
+	/**
+	 * Function to create the directory where the file(s) will be unzipped
+	 *
+	 * @param $directoryName string
+	 *
+	 */
+
+	function addDirectory($directoryName) {
+		$directoryName = str_replace("\\", "/", $directoryName);
+
+		$feedArrayRow = "\x50\x4b\x03\x04";
+		$feedArrayRow .= "\x0a\x00";
+		$feedArrayRow .= "\x00\x00";
+		$feedArrayRow .= "\x00\x00";
+		$feedArrayRow .= "\x00\x00\x00\x00";
+
+		$feedArrayRow .= pack("V",0);
+		$feedArrayRow .= pack("V",0);
+		$feedArrayRow .= pack("V",0);
+		$feedArrayRow .= pack("v", strlen($directoryName) );
+		$feedArrayRow .= pack("v", 0 );
+		$feedArrayRow .= $directoryName;
+
+		$feedArrayRow .= pack("V",0);
+		$feedArrayRow .= pack("V",0);
+		$feedArrayRow .= pack("V",0);
+
+		$this -> compressedData[] = $feedArrayRow;
+
+		$newOffset = strlen(implode("", $this->compressedData));
+
+		$addCentralRecord = "\x50\x4b\x01\x02";
+		$addCentralRecord .="\x00\x00";
+		$addCentralRecord .="\x0a\x00";
+		$addCentralRecord .="\x00\x00";
+		$addCentralRecord .="\x00\x00";
+		$addCentralRecord .="\x00\x00\x00\x00";
+		$addCentralRecord .= pack("V",0);
+		$addCentralRecord .= pack("V",0);
+		$addCentralRecord .= pack("V",0);
+		$addCentralRecord .= pack("v", strlen($directoryName) );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("v", 0 );
+		$ext = "\x00\x00\x10\x00";
+		$ext = "\xff\xff\xff\xff";
+		$addCentralRecord .= pack("V", 16 );
+
+		$addCentralRecord .= pack("V", $this -> oldOffset );
+		$this -> oldOffset = $newOffset;
+
+		$addCentralRecord .= $directoryName;
+
+		$this -> centralDirectory[] = $addCentralRecord;
+	}
+
+	/**
+	 * Function to add file(s) to the specified directory in the archive
+	 *
+	 * @param $directoryName string
+	 *
+	 */
+
+	function addFile($data, $directoryName)   {
+
+		$directoryName = str_replace("\\", "/", $directoryName);
+
+		$feedArrayRow = "\x50\x4b\x03\x04";
+		$feedArrayRow .= "\x14\x00";
+		$feedArrayRow .= "\x00\x00";
+		$feedArrayRow .= "\x08\x00";
+		$feedArrayRow .= "\x00\x00\x00\x00";
+
+		$uncompressedLength = strlen($data);
+		$compression = crc32($data);
+		$gzCompressedData = gzcompress($data);
+		$gzCompressedData = substr( substr($gzCompressedData, 0, strlen($gzCompressedData) - 4), 2);
+		$compressedLength = strlen($gzCompressedData);
+		$feedArrayRow .= pack("V",$compression);
+		$feedArrayRow .= pack("V",$compressedLength);
+		$feedArrayRow .= pack("V",$uncompressedLength);
+		$feedArrayRow .= pack("v", strlen($directoryName) );
+		$feedArrayRow .= pack("v", 0 );
+		$feedArrayRow .= $directoryName;
+
+		$feedArrayRow .= $gzCompressedData;
+
+		$feedArrayRow .= pack("V",$compression);
+		$feedArrayRow .= pack("V",$compressedLength);
+		$feedArrayRow .= pack("V",$uncompressedLength);
+
+		$this -> compressedData[] = $feedArrayRow;
+
+		$newOffset = strlen(implode("", $this->compressedData));
+
+		$addCentralRecord = "\x50\x4b\x01\x02";
+		$addCentralRecord .="\x00\x00";
+		$addCentralRecord .="\x14\x00";
+		$addCentralRecord .="\x00\x00";
+		$addCentralRecord .="\x08\x00";
+		$addCentralRecord .="\x00\x00\x00\x00";
+		$addCentralRecord .= pack("V",$compression);
+		$addCentralRecord .= pack("V",$compressedLength);
+		$addCentralRecord .= pack("V",$uncompressedLength);
+		$addCentralRecord .= pack("v", strlen($directoryName) );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("v", 0 );
+		$addCentralRecord .= pack("V", 32 );
+
+		$addCentralRecord .= pack("V", $this -> oldOffset );
+		$this -> oldOffset = $newOffset;
+
+		$addCentralRecord .= $directoryName;
+
+		$this -> centralDirectory[] = $addCentralRecord;
+	}
+
+	/**
+	 * Fucntion to return the zip file
+	 *
+	 * @return zipfile (archive)
+	 */
+
+	function getZippedfile() {
+
+		$data = implode("", $this -> compressedData);
+		$controlDirectory = implode("", $this -> centralDirectory);
+
+		return
+			$data.
+			$controlDirectory.
+			$this -> endOfCentralDirectory.
+			pack("v", sizeof($this -> centralDirectory)).
+			pack("v", sizeof($this -> centralDirectory)).
+			pack("V", strlen($controlDirectory)).
+			pack("V", strlen($data)).
+			"\x00\x00";
+	}
+
+	/**
+	 *
+	 * Function to force the download of the archive as soon as it is created
+	 *
+	 * @param archiveName string - name of the created archive file
+	 */
+
+	function forceDownload($archiveName) {
+		$headerInfo = '';
+		header("Pragma: public");
+		header("Expires: 0");
+		header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
+		header("Cache-Control: private",false);
+		header("Content-Type: application/zip");
+		header("Content-Disposition: attachment; filename=".basename($archiveName).";" );
+		header("Content-Transfer-Encoding: binary");
+		echo $this->getZippedfile();
+
+	 }
+
+	/**
+	 * Generates zip file from POG package.
+	 *
+	 * @param multi-d array $package
+	 * @param array $paths
+	 */
+	function addPOGPackage($package, $paths=array())
+	{
+		
+		$i = 0;
+		foreach ($package as $key=>$value)
+		{
+			$path = '';
+			foreach ($paths as $p)
+			{
+				$path .= (($path == '') ? $p : "/$p");
+			}
+			if (strpos($key, ".") == false)
+			{
+				$paths[] = $key;
+				$this->addDirectory((($path == '') ? "$key/" : "$path/$key/"));
+				$this->addPOGPackage($package[$key], &$paths);
+			}
+			else
+			{
+				$this->addFile(base64_decode($value), (($path == '') ? $key : "$path/$key"));
+			}
+			if ($i == (sizeof($package)-1))
+			{
+				array_pop($paths);
+			}
+			$i++;
+		}
+	}
+}
+?>
\ No newline at end of file
--
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