added composer setup and the first composer package php-archive

22 files changed, 2538 insertions, 18 deletions

diff --git a/.gitignore b/.gitignore
index bb39ba7cf..5698e9d1f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,3 +56,10 @@
 !/lib/plugins/remote.php
 !/lib/plugins/syntax.php
 lib/images/*/local/*
+
+# composer default ignores
+vendor/*/*/tests/*
+vendor/*/*/test/*
+vendor/*/*/doc/*
+vendor/*/*/docs/*
+
diff --git a/composer.json b/composer.json
new file mode 100644
index 000000000..14ae94ad7
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "splitbrain/php-archive": "~1.0"
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 000000000..753d5c9c0
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,65 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "This file is @generated automatically"
+    ],
+    "hash": "de1f49aad78674b8d56a7f93fb633f65",
+    "packages": [
+        {
+            "name": "splitbrain/php-archive",
+            "version": "1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/splitbrain/php-archive.git",
+                "reference": "a0fbfc2f85ed491f3d2af42cff48a9cb783a8549"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/splitbrain/php-archive/zipball/a0fbfc2f85ed491f3d2af42cff48a9cb783a8549",
+                "reference": "a0fbfc2f85ed491f3d2af42cff48a9cb783a8549",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.5.*"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "splitbrain\\PHPArchive\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Andreas Gohr",
+                    "email": "andi@splitbrain.org"
+                }
+            ],
+            "description": "Pure-PHP implementation to read and write TAR and ZIP archives",
+            "keywords": [
+                "archive",
+                "extract",
+                "tar",
+                "unpack",
+                "unzip",
+                "zip"
+            ],
+            "time": "2015-02-25 20:15:02"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": []
+}
diff --git a/inc/init.php b/inc/init.php
index bc9ab6d70..6d271dfb0 100644
--- a/inc/init.php
+++ b/inc/init.php
@@ -191,6 +191,7 @@ global $plugin_controller_class, $plugin_controller;
 if (empty($plugin_controller_class)) $plugin_controller_class = 'Doku_Plugin_Controller';
 
 // load libraries
+require_once(DOKU_INC.'vendor/autoload.php');
 require_once(DOKU_INC.'inc/load.php');
 
 // disable gzip if not available
diff --git a/lib/plugins/extension/helper/extension.php b/lib/plugins/extension/helper/extension.php
index 6c0946b09..d089245b5 100644
--- a/lib/plugins/extension/helper/extension.php
+++ b/lib/plugins/extension/helper/extension.php
@@ -1035,33 +1035,24 @@ class helper_plugin_extension_extension extends DokuWiki_Plugin {
 
         $ext = $this->guess_archive($file);
         if(in_array($ext, array('tar', 'bz', 'gz'))) {
-            switch($ext) {
-                case 'bz':
-                    $compress_type = Tar::COMPRESS_BZIP;
-                    break;
-                case 'gz':
-                    $compress_type = Tar::COMPRESS_GZIP;
-                    break;
-                default:
-                    $compress_type = Tar::COMPRESS_NONE;
-            }
 
-            $tar = new Tar();
             try {
-                $tar->open($file, $compress_type);
+                $tar = new \splitbrain\PHPArchive\Tar();
+                $tar->open($file);
                 $tar->extract($target);
-            } catch (Exception $e) {
+            } catch (\splitbrain\PHPArchive\ArchiveIOException $e) {
                 throw new Exception($this->getLang('error_decompress').' '.$e->getMessage());
             }
 
             return true;
         } elseif($ext == 'zip') {
 
-            $zip = new ZipLib();
-            $ok  = $zip->Extract($file, $target);
-
-            if($ok == -1){
-                throw new Exception($this->getLang('error_decompress').' Error extracting the zip archive');
+            try {
+                $zip = new \splitbrain\PHPArchive\Zip();
+                $zip->open($file);
+                $zip->extract($target);
+            } catch (\splitbrain\PHPArchive\ArchiveIOException $e) {
+                throw new Exception($this->getLang('error_decompress').' '.$e->getMessage());
             }
 
             return true;
diff --git a/vendor/autoload.php b/vendor/autoload.php
new file mode 100644
index 000000000..88c7fd93b
--- /dev/null
+++ b/vendor/autoload.php
@@ -0,0 +1,7 @@
+<?php
+
+// autoload.php @generated by Composer
+
+require_once __DIR__ . '/composer' . '/autoload_real.php';
+
+return ComposerAutoloaderInita19a915ee98347a0c787119619d2ff9b::getLoader();
diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php
new file mode 100644
index 000000000..5e1469e83
--- /dev/null
+++ b/vendor/composer/ClassLoader.php
@@ -0,0 +1,413 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0 class loader
+ *
+ * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class ClassLoader
+{
+    // PSR-4
+    private $prefixLengthsPsr4 = array();
+    private $prefixDirsPsr4 = array();
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    private $prefixesPsr0 = array();
+    private $fallbackDirsPsr0 = array();
+
+    private $useIncludePath = false;
+    private $classMap = array();
+
+    private $classMapAuthoritative = false;
+
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
+        }
+
+        return array();
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array $classMap Class to filename map
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string       $prefix  The prefix
+     * @param array|string $paths   The PSR-0 root directories
+     * @param bool         $prepend Whether to prepend the directories
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string       $prefix  The prefix/namespace, with trailing '\\'
+     * @param array|string $paths   The PSR-0 base directories
+     * @param bool         $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string       $prefix The prefix
+     * @param array|string $paths  The PSR-0 base directories
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string       $prefix The prefix/namespace, with trailing '\\'
+     * @param array|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return bool|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
+        if ('\\' == $class[0]) {
+            $class = substr($class, 1);
+        }
+
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative) {
+            return false;
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if ($file === null && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if ($file === null) {
+            // Remember that this class does not exist.
+            return $this->classMap[$class] = false;
+        }
+
+        return $file;
+    }
+
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ */
+function includeFile($file)
+{
+    include $file;
+}
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
new file mode 100644
index 000000000..7a91153b0
--- /dev/null
+++ b/vendor/composer/autoload_classmap.php
@@ -0,0 +1,9 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+);
diff --git a/vendor/composer/autoload_namespaces.php b/vendor/composer/autoload_namespaces.php
new file mode 100644
index 000000000..b7fc0125d
--- /dev/null
+++ b/vendor/composer/autoload_namespaces.php
@@ -0,0 +1,9 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+);
diff --git a/vendor/composer/autoload_psr4.php b/vendor/composer/autoload_psr4.php
new file mode 100644
index 000000000..e4d713270
--- /dev/null
+++ b/vendor/composer/autoload_psr4.php
@@ -0,0 +1,10 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'splitbrain\\PHPArchive\\' => array($vendorDir . '/splitbrain/php-archive/src'),
+);
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
new file mode 100644
index 000000000..fee79daed
--- /dev/null
+++ b/vendor/composer/autoload_real.php
@@ -0,0 +1,50 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInita19a915ee98347a0c787119619d2ff9b
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        spl_autoload_register(array('ComposerAutoloaderInita19a915ee98347a0c787119619d2ff9b', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
+        spl_autoload_unregister(array('ComposerAutoloaderInita19a915ee98347a0c787119619d2ff9b', 'loadClassLoader'));
+
+        $map = require __DIR__ . '/autoload_namespaces.php';
+        foreach ($map as $namespace => $path) {
+            $loader->set($namespace, $path);
+        }
+
+        $map = require __DIR__ . '/autoload_psr4.php';
+        foreach ($map as $namespace => $path) {
+            $loader->setPsr4($namespace, $path);
+        }
+
+        $classMap = require __DIR__ . '/autoload_classmap.php';
+        if ($classMap) {
+            $loader->addClassMap($classMap);
+        }
+
+        $loader->register(true);
+
+        return $loader;
+    }
+}
+
+function composerRequirea19a915ee98347a0c787119619d2ff9b($file)
+{
+    require $file;
+}
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
new file mode 100644
index 000000000..769865f79
--- /dev/null
+++ b/vendor/composer/installed.json
@@ -0,0 +1,51 @@
+[
+    {
+        "name": "splitbrain/php-archive",
+        "version": "1.0.0",
+        "version_normalized": "1.0.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/splitbrain/php-archive.git",
+            "reference": "a0fbfc2f85ed491f3d2af42cff48a9cb783a8549"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/splitbrain/php-archive/zipball/a0fbfc2f85ed491f3d2af42cff48a9cb783a8549",
+            "reference": "a0fbfc2f85ed491f3d2af42cff48a9cb783a8549",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "4.5.*"
+        },
+        "time": "2015-02-25 20:15:02",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "splitbrain\\PHPArchive\\": "src"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Andreas Gohr",
+                "email": "andi@splitbrain.org"
+            }
+        ],
+        "description": "Pure-PHP implementation to read and write TAR and ZIP archives",
+        "keywords": [
+            "archive",
+            "extract",
+            "tar",
+            "unpack",
+            "unzip",
+            "zip"
+        ]
+    }
+]
diff --git a/vendor/splitbrain/php-archive/.gitignore b/vendor/splitbrain/php-archive/.gitignore
new file mode 100644
index 000000000..39b851b56
--- /dev/null
+++ b/vendor/splitbrain/php-archive/.gitignore
@@ -0,0 +1,7 @@
+*.iml
+.idea/
+composer.phar
+vendor/
+composer.lock
+
+
diff --git a/vendor/splitbrain/php-archive/.travis.yml b/vendor/splitbrain/php-archive/.travis.yml
new file mode 100644
index 000000000..21124ce5d
--- /dev/null
+++ b/vendor/splitbrain/php-archive/.travis.yml
@@ -0,0 +1,13 @@
+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - hhvm
+
+before_script:
+  - composer self-update
+  - composer install --prefer-source --no-interaction --dev
+
+script: phpunit
\ No newline at end of file
diff --git a/vendor/splitbrain/php-archive/LICENSE b/vendor/splitbrain/php-archive/LICENSE
new file mode 100644
index 000000000..66d08e433
--- /dev/null
+++ b/vendor/splitbrain/php-archive/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2015 Andreas Gohr <gohr@cosmocode.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/vendor/splitbrain/php-archive/README.md b/vendor/splitbrain/php-archive/README.md
new file mode 100644
index 000000000..4fb673259
--- /dev/null
+++ b/vendor/splitbrain/php-archive/README.md
@@ -0,0 +1,61 @@
+PHPArchive - Pure PHP ZIP and TAR handling
+==========================================
+
+This library allows to handle new ZIP and TAR archives without the need for any special PHP extensions (gz and bzip are
+needed for compression). It can create new files or extract existing ones.
+
+To keep things simple, the modification (adding or removing files) of existing archives is not supported.
+
+[![Build Status](https://travis-ci.org/splitbrain/php-archive.svg)](https://travis-ci.org/splitbrain/php-archive)
+
+Install
+-------
+
+Use composer:
+
+```php composer.phar require splitbrain/php-archive```
+
+Usage
+-----
+
+The usage for the Zip and Tar classes are basically the same. Here are some examples for working with TARs to get
+you started. Check the source code comments for more info
+
+```php
+use splitbrain\PHPArchive\Tar;
+
+// To list the contents of an existing TAR archive, open() it and use contents() on it:
+$tar = new Tar();
+$tar->open('myfile.tgz');
+$toc = $tar->contents();
+print_r($toc); // array of FileInfo objects
+
+// To extract the contents of an existing TAR archive, open() it and use extract() on it:
+$tar = new Tar();
+$tar->open('myfile.tgz');
+$tar->extract('/tmp');
+
+// To create a new TAR archive directly on the filesystem (low memory requirements), create() it,
+$tar = new Tar();
+$tar->create('myfile.tgz');
+$tar->addFile(...);
+$tar->addData(...);
+...
+$tar->close();
+
+// To create a TAR archive directly in memory, create() it, add*() files and then either save()
+// or getData() it:
+$tar = new Tar();
+$tar->create();
+$tar->addFile(...);
+$tar->addData(...);
+...
+$tar->save('myfile.tgz'); // compresses and saves it
+echo $tar->getArchive(Archive::COMPRESS_GZIP); // compresses and returns it
+```
+
+Differences between Tar and Zip: Tars are compressed as a whole while Zips compress each file individually. Therefore
+you can call ```setCompression``` before each ```addFile()``` and ```addData()``` functions.
+
+The FileInfo class can be used to specify additional info like ownership or permissions when adding a file to
+an archive. 
\ No newline at end of file
diff --git a/vendor/splitbrain/php-archive/composer.json b/vendor/splitbrain/php-archive/composer.json
new file mode 100644
index 000000000..5ad41a8c4
--- /dev/null
+++ b/vendor/splitbrain/php-archive/composer.json
@@ -0,0 +1,26 @@
+{
+    "name": "splitbrain/php-archive",
+    "description": "Pure-PHP implementation to read and write TAR and ZIP archives",
+    "keywords": ["zip", "tar", "archive", "unpack", "extract", "unzip"],
+    "authors": [
+        {
+            "name": "Andreas Gohr",
+            "email": "andi@splitbrain.org"
+        }
+    ],
+    "license": "MIT",
+
+    "require": {
+        "php": ">=5.3.0"
+    },
+
+    "require-dev": {
+        "phpunit/phpunit": "4.5.*"
+    },
+
+    "autoload": {
+        "psr-4": {
+            "splitbrain\\PHPArchive\\": "src"
+        }
+    }
+}
diff --git a/vendor/splitbrain/php-archive/phpunit.xml b/vendor/splitbrain/php-archive/phpunit.xml
new file mode 100644
index 000000000..d7e1f2428
--- /dev/null
+++ b/vendor/splitbrain/php-archive/phpunit.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         bootstrap="vendor/autoload.php"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false">
+    <testsuites>
+        <testsuite name="Test Suite">
+            <directory suffix=".php">./tests/</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>
\ No newline at end of file
diff --git a/vendor/splitbrain/php-archive/src/Archive.php b/vendor/splitbrain/php-archive/src/Archive.php
new file mode 100644
index 000000000..c60fea777
--- /dev/null
+++ b/vendor/splitbrain/php-archive/src/Archive.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace splitbrain\PHPArchive;
+
+abstract class Archive
+{
+
+    const COMPRESS_AUTO = -1;
+    const COMPRESS_NONE = 0;
+    const COMPRESS_GZIP = 1;
+    const COMPRESS_BZIP = 2;
+
+    /**
+     * Set the compression level and type
+     *
+     * @param int $level Compression level (0 to 9)
+     * @param int $type  Type of compression to use (use COMPRESS_* constants)
+     * @return mixed
+     */
+    abstract public function setCompression($level = 9, $type = Archive::COMPRESS_AUTO);
+
+    /**
+     * Open an existing archive file for reading
+     *
+     * @param string $file
+     * @throws ArchiveIOException
+     */
+    abstract public function open($file);
+
+    /**
+     * Read the contents of an archive
+     *
+     * This function lists the files stored in the archive, and returns an indexed array of FileInfo objects
+     *
+     * The archive is closed afer reading the contents, because rewinding is not possible in bzip2 streams.
+     * Reopen the file with open() again if you want to do additional operations
+     *
+     * @return FileInfo[]
+     */
+    abstract public function contents();
+
+    /**
+     * Extract an existing archive
+     *
+     * The $strip parameter allows you to strip a certain number of path components from the filenames
+     * found in the archive file, similar to the --strip-components feature of GNU tar. This is triggered when
+     * an integer is passed as $strip.
+     * Alternatively a fixed string prefix may be passed in $strip. If the filename matches this prefix,
+     * the prefix will be stripped. It is recommended to give prefixes with a trailing slash.
+     *
+     * By default this will extract all files found in the archive. You can restrict the output using the $include
+     * and $exclude parameter. Both expect a full regular expression (including delimiters and modifiers). If
+     * $include is set, only files that match this expression will be extracted. Files that match the $exclude
+     * expression will never be extracted. Both parameters can be used in combination. Expressions are matched against
+     * stripped filenames as described above.
+     *
+     * The archive is closed afterwards. Reopen the file with open() again if you want to do additional operations
+     *
+     * @param string     $outdir  the target directory for extracting
+     * @param int|string $strip   either the number of path components or a fixed prefix to strip
+     * @param string     $exclude a regular expression of files to exclude
+     * @param string     $include a regular expression of files to include
+     * @throws ArchiveIOException
+     * @return array
+     */
+    abstract public function extract($outdir, $strip = '', $exclude = '', $include = '');
+
+    /**
+     * Create a new archive file
+     *
+     * If $file is empty, the archive file will be created in memory
+     *
+     * @param string $file
+     */
+    abstract public function create($file = '');
+
+    /**
+     * Add a file to the current archive using an existing file in the filesystem
+     *
+     * @param string          $file     path to the original file
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data, empty to take from original
+     * @throws ArchiveIOException
+     */
+    abstract public function addFile($file, $fileinfo = '');
+
+    /**
+     * Add a file to the current archive using the given $data as content
+     *
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data
+     * @param string          $data     binary content of the file to add
+     * @throws ArchiveIOException
+     */
+    abstract public function addData($fileinfo, $data);
+
+    /**
+     * Close the archive, close all file handles
+     *
+     * After a call to this function no more data can be added to the archive, for
+     * read access no reading is allowed anymore
+     */
+    abstract public function close();
+
+    /**
+     * Returns the created in-memory archive data
+     *
+     * This implicitly calls close() on the Archive
+     */
+    abstract public function getArchive();
+
+    /**
+     * Save the created in-memory archive data
+     *
+     * Note: It is more memory effective to specify the filename in the create() function and
+     * let the library work on the new file directly.
+     *
+     * @param string $file
+     */
+    abstract public function save($file);
+
+}
+
+class ArchiveIOException extends \Exception
+{
+}
+
+class ArchiveIllegalCompressionException extends \Exception
+{
+}
diff --git a/vendor/splitbrain/php-archive/src/FileInfo.php b/vendor/splitbrain/php-archive/src/FileInfo.php
new file mode 100644
index 000000000..c443aa977
--- /dev/null
+++ b/vendor/splitbrain/php-archive/src/FileInfo.php
@@ -0,0 +1,342 @@
+<?php
+
+namespace splitbrain\PHPArchive;
+
+/**
+ * Class FileInfo
+ *
+ * stores meta data about a file in an Archive
+ *
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ * @package splitbrain\PHPArchive
+ * @license MIT
+ */
+class FileInfo
+{
+
+    protected $isdir = false;
+    protected $path = '';
+    protected $size = 0;
+    protected $csize = 0;
+    protected $mtime = 0;
+    protected $mode = 0664;
+    protected $owner = '';
+    protected $group = '';
+    protected $uid = 0;
+    protected $gid = 0;
+    protected $comment = '';
+
+    /**
+     * initialize dynamic defaults
+     *
+     * @param string $path The path of the file, can also be set later through setPath()
+     */
+    public function __construct($path = '')
+    {
+        $this->mtime = time();
+        $this->setPath($path);
+    }
+
+    /**
+     * Factory to build FileInfo from existing file or directory
+     *
+     * @param string $path path to a file on the local file system
+     * @param string $as   optional path to use inside the archive
+     * @throws FileInfoException
+     * @return FileInfo
+     */
+    public static function fromPath($path, $as = '')
+    {
+        clearstatcache(false, $path);
+
+        if (!file_exists($path)) {
+            throw new FileInfoException("$path does not exist");
+        }
+
+        $stat = stat($path);
+        $file = new FileInfo();
+
+        $file->setPath($path);
+        $file->setIsdir(is_dir($path));
+        $file->setMode(fileperms($path));
+        $file->setOwner(fileowner($path));
+        $file->setGroup(filegroup($path));
+        $file->setUid($stat['uid']);
+        $file->setGid($stat['gid']);
+        $file->setMtime($stat['mtime']);
+
+        if ($as) {
+            $file->setPath($as);
+        }
+
+        return $file;
+    }
+
+    /**
+     * @return int
+     */
+    public function getSize()
+    {
+        return $this->size;
+    }
+
+    /**
+     * @param int $size
+     */
+    public function setSize($size)
+    {
+        $this->size = $size;
+    }
+
+    /**
+     * @return int
+     */
+    public function getCompressedSize()
+    {
+        return $this->csize;
+    }
+
+    /**
+     * @param int $csize
+     */
+    public function setCompressedSize($csize)
+    {
+        $this->csize = $csize;
+    }
+
+    /**
+     * @return int
+     */
+    public function getMtime()
+    {
+        return $this->mtime;
+    }
+
+    /**
+     * @param int $mtime
+     */
+    public function setMtime($mtime)
+    {
+        $this->mtime = $mtime;
+    }
+
+    /**
+     * @return int
+     */
+    public function getGid()
+    {
+        return $this->gid;
+    }
+
+    /**
+     * @param int $gid
+     */
+    public function setGid($gid)
+    {
+        $this->gid = $gid;
+    }
+
+    /**
+     * @return int
+     */
+    public function getUid()
+    {
+        return $this->uid;
+    }
+
+    /**
+     * @param int $uid
+     */
+    public function setUid($uid)
+    {
+        $this->uid = $uid;
+    }
+
+    /**
+     * @return string
+     */
+    public function getComment()
+    {
+        return $this->comment;
+    }
+
+    /**
+     * @param string $comment
+     */
+    public function setComment($comment)
+    {
+        $this->comment = $comment;
+    }
+
+    /**
+     * @return string
+     */
+    public function getGroup()
+    {
+        return $this->group;
+    }
+
+    /**
+     * @param string $group
+     */
+    public function setGroup($group)
+    {
+        $this->group = $group;
+    }
+
+    /**
+     * @return boolean
+     */
+    public function getIsdir()
+    {
+        return $this->isdir;
+    }
+
+    /**
+     * @param boolean $isdir
+     */
+    public function setIsdir($isdir)
+    {
+        // default mode for directories
+        if ($isdir && $this->mode === 0664) {
+            $this->mode = 0775;
+        }
+        $this->isdir = $isdir;
+    }
+
+    /**
+     * @return int
+     */
+    public function getMode()
+    {
+        return $this->mode;
+    }
+
+    /**
+     * @param int $mode
+     */
+    public function setMode($mode)
+    {
+        $this->mode = $mode;
+    }
+
+    /**
+     * @return string
+     */
+    public function getOwner()
+    {
+        return $this->owner;
+    }
+
+    /**
+     * @param string $owner
+     */
+    public function setOwner($owner)
+    {
+        $this->owner = $owner;
+    }
+
+    /**
+     * @return string
+     */
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    /**
+     * @param string $path
+     */
+    public function setPath($path)
+    {
+        $this->path = $this->cleanPath($path);
+    }
+
+    /**
+     * Cleans up a path and removes relative parts, also strips leading slashes
+     *
+     * @param string $path
+     * @return string
+     */
+    protected function cleanPath($path)
+    {
+        $path    = str_replace('\\', '/', $path);
+        $path    = explode('/', $path);
+        $newpath = array();
+        foreach ($path as $p) {
+            if ($p === '' || $p === '.') {
+                continue;
+            }
+            if ($p === '..') {
+                array_pop($newpath);
+                continue;
+            }
+            array_push($newpath, $p);
+        }
+        return trim(implode('/', $newpath), '/');
+    }
+
+    /**
+     * Strip given prefix or number of path segments from the filename
+     *
+     * The $strip parameter allows you to strip a certain number of path components from the filenames
+     * found in the tar file, similar to the --strip-components feature of GNU tar. This is triggered when
+     * an integer is passed as $strip.
+     * Alternatively a fixed string prefix may be passed in $strip. If the filename matches this prefix,
+     * the prefix will be stripped. It is recommended to give prefixes with a trailing slash.
+     *
+     * @param  int|string $strip
+     * @return FileInfo
+     */
+    public function strip($strip)
+    {
+        $filename = $this->getPath();
+        $striplen = strlen($strip);
+        if (is_int($strip)) {
+            // if $strip is an integer we strip this many path components
+            $parts = explode('/', $filename);
+            if (!$this->getIsdir()) {
+                $base = array_pop($parts); // keep filename itself
+            } else {
+                $base = '';
+            }
+            $filename = join('/', array_slice($parts, $strip));
+            if ($base) {
+                $filename .= "/$base";
+            }
+        } else {
+            // if strip is a string, we strip a prefix here
+            if (substr($filename, 0, $striplen) == $strip) {
+                $filename = substr($filename, $striplen);
+            }
+        }
+
+        $this->setPath($filename);
+    }
+
+    /**
+     * Does the file match the given include and exclude expressions?
+     *
+     * Exclude rules take precedence over include rules
+     *
+     * @param string $include Regular expression of files to include
+     * @param string $exclude Regular expression of files to exclude
+     * @return bool
+     */
+    public function match($include = '', $exclude = '')
+    {
+        $extract = true;
+        if ($include && !preg_match($include, $this->getPath())) {
+            $extract = false;
+        }
+        if ($exclude && preg_match($exclude, $this->getPath())) {
+            $extract = false;
+        }
+
+        return $extract;
+    }
+}
+
+class FileInfoException extends \Exception
+{
+}
\ No newline at end of file
diff --git a/vendor/splitbrain/php-archive/src/Tar.php b/vendor/splitbrain/php-archive/src/Tar.php
new file mode 100644
index 000000000..bd78136da
--- /dev/null
+++ b/vendor/splitbrain/php-archive/src/Tar.php
@@ -0,0 +1,635 @@
+<?php
+
+namespace splitbrain\PHPArchive;
+
+/**
+ * Class Tar
+ *
+ * Creates or extracts Tar archives. Supports gz and bzip compression
+ *
+ * Long pathnames (>100 chars) are supported in POSIX ustar and GNU longlink formats.
+ *
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ * @package splitbrain\PHPArchive
+ * @license MIT
+ */
+class Tar extends Archive
+{
+
+    protected $file = '';
+    protected $comptype = Archive::COMPRESS_AUTO;
+    protected $complevel = 9;
+    protected $fh;
+    protected $memory = '';
+    protected $closed = true;
+    protected $writeaccess = false;
+
+    /**
+     * Sets the compression to use
+     *
+     * @param int $level Compression level (0 to 9)
+     * @param int $type  Type of compression to use (use COMPRESS_* constants)
+     * @return mixed
+     */
+    public function setCompression($level = 9, $type = Archive::COMPRESS_AUTO)
+    {
+        $this->compressioncheck($type);
+        $this->comptype  = $type;
+        $this->complevel = $level;
+    }
+
+    /**
+     * Open an existing TAR file for reading
+     *
+     * @param string $file
+     * @throws ArchiveIOException
+     */
+    public function open($file)
+    {
+        $this->file = $file;
+
+        // update compression to mach file
+        if ($this->comptype == Tar::COMPRESS_AUTO) {
+            $this->setCompression($this->complevel, $this->filetype($file));
+        }
+
+        // open file handles
+        if ($this->comptype === Archive::COMPRESS_GZIP) {
+            $this->fh = @gzopen($this->file, 'rb');
+        } elseif ($this->comptype === Archive::COMPRESS_BZIP) {
+            $this->fh = @bzopen($this->file, 'r');
+        } else {
+            $this->fh = @fopen($this->file, 'rb');
+        }
+
+        if (!$this->fh) {
+            throw new ArchiveIOException('Could not open file for reading: '.$this->file);
+        }
+        $this->closed = false;
+    }
+
+    /**
+     * Read the contents of a TAR archive
+     *
+     * This function lists the files stored in the archive
+     *
+     * The archive is closed afer reading the contents, because rewinding is not possible in bzip2 streams.
+     * Reopen the file with open() again if you want to do additional operations
+     *
+     * @throws ArchiveIOException
+     * @returns FileInfo[]
+     */
+    public function contents()
+    {
+        if ($this->closed || !$this->file) {
+            throw new ArchiveIOException('Can not read from a closed archive');
+        }
+
+        $result = array();
+        while ($read = $this->readbytes(512)) {
+            $header = $this->parseHeader($read);
+            if (!is_array($header)) {
+                continue;
+            }
+
+            $this->skipbytes(ceil($header['size'] / 512) * 512);
+            $result[] = $this->header2fileinfo($header);
+        }
+
+        $this->close();
+        return $result;
+    }
+
+    /**
+     * Extract an existing TAR archive
+     *
+     * The $strip parameter allows you to strip a certain number of path components from the filenames
+     * found in the tar file, similar to the --strip-components feature of GNU tar. This is triggered when
+     * an integer is passed as $strip.
+     * Alternatively a fixed string prefix may be passed in $strip. If the filename matches this prefix,
+     * the prefix will be stripped. It is recommended to give prefixes with a trailing slash.
+     *
+     * By default this will extract all files found in the archive. You can restrict the output using the $include
+     * and $exclude parameter. Both expect a full regular expression (including delimiters and modifiers). If
+     * $include is set only files that match this expression will be extracted. Files that match the $exclude
+     * expression will never be extracted. Both parameters can be used in combination. Expressions are matched against
+     * stripped filenames as described above.
+     *
+     * The archive is closed afer reading the contents, because rewinding is not possible in bzip2 streams.
+     * Reopen the file with open() again if you want to do additional operations
+     *
+     * @param string     $outdir  the target directory for extracting
+     * @param int|string $strip   either the number of path components or a fixed prefix to strip
+     * @param string     $exclude a regular expression of files to exclude
+     * @param string     $include a regular expression of files to include
+     * @throws ArchiveIOException
+     * @return FileInfo[]
+     */
+    public function extract($outdir, $strip = '', $exclude = '', $include = '')
+    {
+        if ($this->closed || !$this->file) {
+            throw new ArchiveIOException('Can not read from a closed archive');
+        }
+
+        $outdir = rtrim($outdir, '/');
+        @mkdir($outdir, 0777, true);
+        if (!is_dir($outdir)) {
+            throw new ArchiveIOException("Could not create directory '$outdir'");
+        }
+
+        $extracted = array();
+        while ($dat = $this->readbytes(512)) {
+            // read the file header
+            $header = $this->parseHeader($dat);
+            if (!is_array($header)) {
+                continue;
+            }
+            $fileinfo = $this->header2fileinfo($header);
+
+            // apply strip rules
+            $fileinfo->strip($strip);
+
+            // skip unwanted files
+            if (!strlen($fileinfo->getPath()) || !$fileinfo->match($include, $exclude)) {
+                $this->skipbytes(ceil($header['size'] / 512) * 512);
+                continue;
+            }
+
+            // create output directory
+            $output    = $outdir.'/'.$fileinfo->getPath();
+            $directory = ($fileinfo->getIsdir()) ? $output : dirname($output);
+            @mkdir($directory, 0777, true);
+
+            // extract data
+            if (!$fileinfo->getIsdir()) {
+                $fp = fopen($output, "wb");
+                if (!$fp) {
+                    throw new ArchiveIOException('Could not open file for writing: '.$output);
+                }
+
+                $size = floor($header['size'] / 512);
+                for ($i = 0; $i < $size; $i++) {
+                    fwrite($fp, $this->readbytes(512), 512);
+                }
+                if (($header['size'] % 512) != 0) {
+                    fwrite($fp, $this->readbytes(512), $header['size'] % 512);
+                }
+
+                fclose($fp);
+                touch($output, $fileinfo->getMtime());
+                chmod($output, $fileinfo->getMode());
+            } else {
+                $this->skipbytes(ceil($header['size'] / 512) * 512); // the size is usually 0 for directories
+            }
+
+            $extracted[] = $fileinfo;
+        }
+
+        $this->close();
+        return $extracted;
+    }
+
+    /**
+     * Create a new TAR file
+     *
+     * If $file is empty, the tar file will be created in memory
+     *
+     * @param string $file
+     * @throws ArchiveIOException
+     */
+    public function create($file = '')
+    {
+        $this->file   = $file;
+        $this->memory = '';
+        $this->fh     = 0;
+
+        if ($this->file) {
+            // determine compression
+            if ($this->comptype == Archive::COMPRESS_AUTO) {
+                $this->setCompression($this->complevel, $this->filetype($file));
+            }
+
+            if ($this->comptype === Archive::COMPRESS_GZIP) {
+                $this->fh = @gzopen($this->file, 'wb'.$this->complevel);
+            } elseif ($this->comptype === Archive::COMPRESS_BZIP) {
+                $this->fh = @bzopen($this->file, 'w');
+            } else {
+                $this->fh = @fopen($this->file, 'wb');
+            }
+
+            if (!$this->fh) {
+                throw new ArchiveIOException('Could not open file for writing: '.$this->file);
+            }
+        }
+        $this->writeaccess = true;
+        $this->closed      = false;
+    }
+
+    /**
+     * Add a file to the current TAR archive using an existing file in the filesystem
+     *
+     * @param string          $file     path to the original file
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data, empty to take from original
+     * @throws ArchiveIOException
+     */
+    public function addFile($file, $fileinfo = '')
+    {
+        if (is_string($fileinfo)) {
+            $fileinfo = FileInfo::fromPath($file, $fileinfo);
+        }
+
+        if ($this->closed) {
+            throw new ArchiveIOException('Archive has been closed, files can no longer be added');
+        }
+
+        $fp = fopen($file, 'rb');
+        if (!$fp) {
+            throw new ArchiveIOException('Could not open file for reading: '.$file);
+        }
+
+        // create file header
+        $this->writeFileHeader($fileinfo);
+
+        // write data
+        while (!feof($fp)) {
+            $data = fread($fp, 512);
+            if ($data === false) {
+                break;
+            }
+            if ($data === '') {
+                break;
+            }
+            $packed = pack("a512", $data);
+            $this->writebytes($packed);
+        }
+        fclose($fp);
+    }
+
+    /**
+     * Add a file to the current TAR archive using the given $data as content
+     *
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data
+     * @param string          $data     binary content of the file to add
+     * @throws ArchiveIOException
+     */
+    public function addData($fileinfo, $data)
+    {
+        if (is_string($fileinfo)) {
+            $fileinfo = new FileInfo($fileinfo);
+        }
+
+        if ($this->closed) {
+            throw new ArchiveIOException('Archive has been closed, files can no longer be added');
+        }
+
+        $len = strlen($data);
+        $fileinfo->setSize($len);
+        $this->writeFileHeader($fileinfo);
+
+        for ($s = 0; $s < $len; $s += 512) {
+            $this->writebytes(pack("a512", substr($data, $s, 512)));
+        }
+    }
+
+    /**
+     * Add the closing footer to the archive if in write mode, close all file handles
+     *
+     * After a call to this function no more data can be added to the archive, for
+     * read access no reading is allowed anymore
+     *
+     * "Physically, an archive consists of a series of file entries terminated by an end-of-archive entry, which
+     * consists of two 512 blocks of zero bytes"
+     *
+     * @link http://www.gnu.org/software/tar/manual/html_chapter/tar_8.html#SEC134
+     */
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        } // we did this already
+
+        // write footer
+        if ($this->writeaccess) {
+            $this->writebytes(pack("a512", ""));
+            $this->writebytes(pack("a512", ""));
+        }
+
+        // close file handles
+        if ($this->file) {
+            if ($this->comptype === Archive::COMPRESS_GZIP) {
+                gzclose($this->fh);
+            } elseif ($this->comptype === Archive::COMPRESS_BZIP) {
+                bzclose($this->fh);
+            } else {
+                fclose($this->fh);
+            }
+
+            $this->file = '';
+            $this->fh   = 0;
+        }
+
+        $this->writeaccess = false;
+        $this->closed      = true;
+    }
+
+    /**
+     * Returns the created in-memory archive data
+     *
+     * This implicitly calls close() on the Archive
+     */
+    public function getArchive()
+    {
+        $this->close();
+
+        if ($this->comptype === Archive::COMPRESS_AUTO) {
+            $this->comptype = Archive::COMPRESS_NONE;
+        }
+
+        if ($this->comptype === Archive::COMPRESS_GZIP) {
+            return gzcompress($this->memory, $this->complevel);
+        }
+        if ($this->comptype === Archive::COMPRESS_BZIP) {
+            return bzcompress($this->memory);
+        }
+        return $this->memory;
+    }
+
+    /**
+     * Save the created in-memory archive data
+     *
+     * Note: It more memory effective to specify the filename in the create() function and
+     * let the library work on the new file directly.
+     *
+     * @param string $file
+     * @throws ArchiveIOException
+     */
+    public function save($file)
+    {
+        if ($this->comptype === Archive::COMPRESS_AUTO) {
+            $this->setCompression($this->filetype($this->complevel, $file));
+        }
+
+        if (!file_put_contents($file, $this->getArchive())) {
+            throw new ArchiveIOException('Could not write to file: '.$file);
+        }
+    }
+
+    /**
+     * Read from the open file pointer
+     *
+     * @param int $length bytes to read
+     * @return string
+     */
+    protected function readbytes($length)
+    {
+        if ($this->comptype === Archive::COMPRESS_GZIP) {
+            return @gzread($this->fh, $length);
+        } elseif ($this->comptype === Archive::COMPRESS_BZIP) {
+            return @bzread($this->fh, $length);
+        } else {
+            return @fread($this->fh, $length);
+        }
+    }
+
+    /**
+     * Write to the open filepointer or memory
+     *
+     * @param string $data
+     * @throws ArchiveIOException
+     * @return int number of bytes written
+     */
+    protected function writebytes($data)
+    {
+        if (!$this->file) {
+            $this->memory .= $data;
+            $written = strlen($data);
+        } elseif ($this->comptype === Archive::COMPRESS_GZIP) {
+            $written = @gzwrite($this->fh, $data);
+        } elseif ($this->comptype === Archive::COMPRESS_BZIP) {
+            $written = @bzwrite($this->fh, $data);
+        } else {
+            $written = @fwrite($this->fh, $data);
+        }
+        if ($written === false) {
+            throw new ArchiveIOException('Failed to write to archive stream');
+        }
+        return $written;
+    }
+
+    /**
+     * Skip forward in the open file pointer
+     *
+     * This is basically a wrapper around seek() (and a workaround for bzip2)
+     *
+     * @param int $bytes seek to this position
+     */
+    function skipbytes($bytes)
+    {
+        if ($this->comptype === Archive::COMPRESS_GZIP) {
+            @gzseek($this->fh, $bytes, SEEK_CUR);
+        } elseif ($this->comptype === Archive::COMPRESS_BZIP) {
+            // there is no seek in bzip2, we simply read on
+            @bzread($this->fh, $bytes);
+        } else {
+            @fseek($this->fh, $bytes, SEEK_CUR);
+        }
+    }
+
+    /**
+     * Write the given file metat data as header
+     *
+     * @param FileInfo $fileinfo
+     */
+    protected function writeFileHeader(FileInfo $fileinfo)
+    {
+        $this->writeRawFileHeader(
+            $fileinfo->getPath(),
+            $fileinfo->getUid(),
+            $fileinfo->getGid(),
+            $fileinfo->getMode(),
+            $fileinfo->getSize(),
+            $fileinfo->getMtime(),
+            $fileinfo->getIsdir() ? '5' : '0'
+        );
+    }
+
+    /**
+     * Write a file header to the stream
+     *
+     * @param string $name
+     * @param int    $uid
+     * @param int    $gid
+     * @param int    $perm
+     * @param int    $size
+     * @param int    $mtime
+     * @param string $typeflag Set to '5' for directories
+     */
+    protected function writeRawFileHeader($name, $uid, $gid, $perm, $size, $mtime, $typeflag = '')
+    {
+        // handle filename length restrictions
+        $prefix  = '';
+        $namelen = strlen($name);
+        if ($namelen > 100) {
+            $file = basename($name);
+            $dir  = dirname($name);
+            if (strlen($file) > 100 || strlen($dir) > 155) {
+                // we're still too large, let's use GNU longlink
+                $this->writeRawFileHeader('././@LongLink', 0, 0, 0, $namelen, 0, 'L');
+                for ($s = 0; $s < $namelen; $s += 512) {
+                    $this->writebytes(pack("a512", substr($name, $s, 512)));
+                }
+                $name = substr($name, 0, 100); // cut off name
+            } else {
+                // we're fine when splitting, use POSIX ustar
+                $prefix = $dir;
+                $name   = $file;
+            }
+        }
+
+        // values are needed in octal
+        $uid   = sprintf("%6s ", decoct($uid));
+        $gid   = sprintf("%6s ", decoct($gid));
+        $perm  = sprintf("%6s ", decoct($perm));
+        $size  = sprintf("%11s ", decoct($size));
+        $mtime = sprintf("%11s", decoct($mtime));
+
+        $data_first = pack("a100a8a8a8a12A12", $name, $perm, $uid, $gid, $size, $mtime);
+        $data_last  = pack("a1a100a6a2a32a32a8a8a155a12", $typeflag, '', 'ustar', '', '', '', '', '', $prefix, "");
+
+        for ($i = 0, $chks = 0; $i < 148; $i++) {
+            $chks += ord($data_first[$i]);
+        }
+
+        for ($i = 156, $chks += 256, $j = 0; $i < 512; $i++, $j++) {
+            $chks += ord($data_last[$j]);
+        }
+
+        $this->writebytes($data_first);
+
+        $chks = pack("a8", sprintf("%6s ", decoct($chks)));
+        $this->writebytes($chks.$data_last);
+    }
+
+    /**
+     * Decode the given tar file header
+     *
+     * @param string $block a 512 byte block containign the header data
+     * @return array|bool
+     */
+    protected function parseHeader($block)
+    {
+        if (!$block || strlen($block) != 512) {
+            return false;
+        }
+
+        for ($i = 0, $chks = 0; $i < 148; $i++) {
+            $chks += ord($block[$i]);
+        }
+
+        for ($i = 156, $chks += 256; $i < 512; $i++) {
+            $chks += ord($block[$i]);
+        }
+
+        $header = @unpack(
+            "a100filename/a8perm/a8uid/a8gid/a12size/a12mtime/a8checksum/a1typeflag/a100link/a6magic/a2version/a32uname/a32gname/a8devmajor/a8devminor/a155prefix",
+            $block
+        );
+        if (!$header) {
+            return false;
+        }
+
+        $return['checksum'] = OctDec(trim($header['checksum']));
+        if ($return['checksum'] != $chks) {
+            return false;
+        }
+
+        $return['filename'] = trim($header['filename']);
+        $return['perm']     = OctDec(trim($header['perm']));
+        $return['uid']      = OctDec(trim($header['uid']));
+        $return['gid']      = OctDec(trim($header['gid']));
+        $return['size']     = OctDec(trim($header['size']));
+        $return['mtime']    = OctDec(trim($header['mtime']));
+        $return['typeflag'] = $header['typeflag'];
+        $return['link']     = trim($header['link']);
+        $return['uname']    = trim($header['uname']);
+        $return['gname']    = trim($header['gname']);
+
+        // Handle ustar Posix compliant path prefixes
+        if (trim($header['prefix'])) {
+            $return['filename'] = trim($header['prefix']).'/'.$return['filename'];
+        }
+
+        // Handle Long-Link entries from GNU Tar
+        if ($return['typeflag'] == 'L') {
+            // following data block(s) is the filename
+            $filename = trim($this->readbytes(ceil($header['size'] / 512) * 512));
+            // next block is the real header
+            $block  = $this->readbytes(512);
+            $return = $this->parseHeader($block);
+            // overwrite the filename
+            $return['filename'] = $filename;
+        }
+
+        return $return;
+    }
+
+    /**
+     * Creates a FileInfo object from the given parsed header
+     *
+     * @param $header
+     * @return FileInfo
+     */
+    protected function header2fileinfo($header)
+    {
+        $fileinfo = new FileInfo();
+        $fileinfo->setPath($header['filename']);
+        $fileinfo->setMode($header['perm']);
+        $fileinfo->setUid($header['uid']);
+        $fileinfo->setGid($header['gid']);
+        $fileinfo->setSize($header['size']);
+        $fileinfo->setMtime($header['mtime']);
+        $fileinfo->setOwner($header['uname']);
+        $fileinfo->setGroup($header['gname']);
+        $fileinfo->setIsdir((bool) $header['typeflag']);
+
+        return $fileinfo;
+    }
+
+    /**
+     * Checks if the given compression type is available and throws an exception if not
+     *
+     * @param $comptype
+     * @throws ArchiveIllegalCompressionException
+     */
+    protected function compressioncheck($comptype)
+    {
+        if ($comptype === Archive::COMPRESS_GZIP && !function_exists('gzopen')) {
+            throw new ArchiveIllegalCompressionException('No gzip support available');
+        }
+
+        if ($comptype === Archive::COMPRESS_BZIP && !function_exists('bzopen')) {
+            throw new ArchiveIllegalCompressionException('No bzip2 support available');
+        }
+    }
+
+    /**
+     * Guesses the wanted compression from the given filename extension
+     *
+     * You don't need to call this yourself. It's used when you pass Archive::COMPRESS_AUTO somewhere
+     *
+     * @param string $file
+     * @return int
+     */
+    public function filetype($file)
+    {
+        $file = strtolower($file);
+        if (substr($file, -3) == '.gz' || substr($file, -4) == '.tgz') {
+            $comptype = Archive::COMPRESS_GZIP;
+        } elseif (substr($file, -4) == '.bz2' || substr($file, -4) == '.tbz') {
+            $comptype = Archive::COMPRESS_BZIP;
+        } else {
+            $comptype = Archive::COMPRESS_NONE;
+        }
+        return $comptype;
+    }
+}
diff --git a/vendor/splitbrain/php-archive/src/Zip.php b/vendor/splitbrain/php-archive/src/Zip.php
new file mode 100644
index 000000000..c2ff36575
--- /dev/null
+++ b/vendor/splitbrain/php-archive/src/Zip.php
@@ -0,0 +1,654 @@
+<?php
+
+namespace splitbrain\PHPArchive;
+
+/**
+ * Class Zip
+ *
+ * Creates or extracts Zip archives
+ *
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ * @package splitbrain\PHPArchive
+ * @license MIT
+ */
+class Zip extends Archive
+{
+
+    protected $file = '';
+    protected $fh;
+    protected $memory = '';
+    protected $closed = true;
+    protected $writeaccess = false;
+    protected $ctrl_dir;
+    protected $complevel = 9;
+
+    /**
+     * Set the compression level.
+     *
+     * Compression Type is ignored for ZIP
+     *
+     * You can call this function before adding each file to set differen compression levels
+     * for each file.
+     *
+     * @param int $level Compression level (0 to 9)
+     * @param int $type  Type of compression to use ignored for ZIP
+     * @return mixed
+     */
+    public function setCompression($level = 9, $type = Archive::COMPRESS_AUTO)
+    {
+        $this->complevel = $level;
+    }
+
+    /**
+     * Open an existing ZIP file for reading
+     *
+     * @param string $file
+     * @throws ArchiveIOException
+     */
+    public function open($file)
+    {
+        $this->file = $file;
+        $this->fh   = @fopen($this->file, 'rb');
+        if (!$this->fh) {
+            throw new ArchiveIOException('Could not open file for reading: '.$this->file);
+        }
+        $this->closed = false;
+    }
+
+    /**
+     * Read the contents of a ZIP archive
+     *
+     * This function lists the files stored in the archive, and returns an indexed array of FileInfo objects
+     *
+     * The archive is closed afer reading the contents, for API compatibility with TAR files
+     * Reopen the file with open() again if you want to do additional operations
+     *
+     * @throws ArchiveIOException
+     * @return FileInfo[]
+     */
+    public function contents()
+    {
+        if ($this->closed || !$this->file) {
+            throw new ArchiveIOException('Can not read from a closed archive');
+        }
+
+        $result = array();
+
+        $centd = $this->readCentralDir();
+
+        @rewind($this->fh);
+        @fseek($this->fh, $centd['offset']);
+
+        for ($i = 0; $i < $centd['entries']; $i++) {
+            $result[] = $this->header2fileinfo($this->readCentralFileHeader());
+        }
+
+        $this->close();
+        return $result;
+    }
+
+    /**
+     * Extract an existing ZIP archive
+     *
+     * The $strip parameter allows you to strip a certain number of path components from the filenames
+     * found in the tar file, similar to the --strip-components feature of GNU tar. This is triggered when
+     * an integer is passed as $strip.
+     * Alternatively a fixed string prefix may be passed in $strip. If the filename matches this prefix,
+     * the prefix will be stripped. It is recommended to give prefixes with a trailing slash.
+     *
+     * By default this will extract all files found in the archive. You can restrict the output using the $include
+     * and $exclude parameter. Both expect a full regular expression (including delimiters and modifiers). If
+     * $include is set only files that match this expression will be extracted. Files that match the $exclude
+     * expression will never be extracted. Both parameters can be used in combination. Expressions are matched against
+     * stripped filenames as described above.
+     *
+     * @param string     $outdir  the target directory for extracting
+     * @param int|string $strip   either the number of path components or a fixed prefix to strip
+     * @param string     $exclude a regular expression of files to exclude
+     * @param string     $include a regular expression of files to include
+     * @throws ArchiveIOException
+     * @return FileInfo[]
+     */
+    function extract($outdir, $strip = '', $exclude = '', $include = '')
+    {
+        if ($this->closed || !$this->file) {
+            throw new ArchiveIOException('Can not read from a closed archive');
+        }
+
+        $outdir = rtrim($outdir, '/');
+        @mkdir($outdir, 0777, true);
+
+        $extracted = array();
+
+        $cdir      = $this->readCentralDir();
+        $pos_entry = $cdir['offset']; // begin of the central file directory
+
+        for ($i = 0; $i < $cdir['entries']; $i++) {
+            // read file header
+            @fseek($this->fh, $pos_entry);
+            $header          = $this->readCentralFileHeader();
+            $header['index'] = $i;
+            $pos_entry       = ftell($this->fh); // position of the next file in central file directory
+            fseek($this->fh, $header['offset']); // seek to beginning of file header
+            $header   = $this->readFileHeader($header);
+            $fileinfo = $this->header2fileinfo($header);
+
+            // apply strip rules
+            $fileinfo->strip($strip);
+
+            // skip unwanted files
+            if (!strlen($fileinfo->getPath()) || !$fileinfo->match($include, $exclude)) {
+                continue;
+            }
+
+            $extracted[] = $fileinfo;
+
+            // create output directory
+            $output    = $outdir.'/'.$fileinfo->getPath();
+            $directory = ($header['folder']) ? $output : dirname($output);
+            @mkdir($directory, 0777, true);
+
+            // nothing more to do for directories
+            if ($fileinfo->getIsdir()) {
+                continue;
+            }
+
+            // compressed files are written to temporary .gz file first
+            if ($header['compression'] == 0) {
+                $extractto = $output;
+            } else {
+                $extractto = $output.'.gz';
+            }
+
+            // open file for writing
+            $fp = fopen($extractto, "wb");
+            if (!$fp) {
+                throw new ArchiveIOException('Could not open file for writing: '.$extractto);
+            }
+
+            // prepend compression header
+            if ($header['compression'] != 0) {
+                $binary_data = pack(
+                    'va1a1Va1a1',
+                    0x8b1f,
+                    chr($header['compression']),
+                    chr(0x00),
+                    time(),
+                    chr(0x00),
+                    chr(3)
+                );
+                fwrite($fp, $binary_data, 10);
+            }
+
+            // read the file and store it on disk
+            $size = $header['compressed_size'];
+            while ($size != 0) {
+                $read_size   = ($size < 2048 ? $size : 2048);
+                $buffer      = fread($this->fh, $read_size);
+                $binary_data = pack('a'.$read_size, $buffer);
+                fwrite($fp, $binary_data, $read_size);
+                $size -= $read_size;
+            }
+
+            // finalize compressed file
+            if ($header['compression'] != 0) {
+                $binary_data = pack('VV', $header['crc'], $header['size']);
+                fwrite($fp, $binary_data, 8);
+            }
+
+            // close file
+            fclose($fp);
+
+            // unpack compressed file
+            if ($header['compression'] != 0) {
+                $gzp = @gzopen($extractto, 'rb');
+                if (!$gzp) {
+                    @unlink($extractto);
+                    throw new ArchiveIOException('Failed file extracting. gzip support missing?');
+                }
+                $fp = @fopen($output, 'wb');
+                if (!$fp) {
+                    throw new ArchiveIOException('Could not open file for writing: '.$extractto);
+                }
+
+                $size = $header['size'];
+                while ($size != 0) {
+                    $read_size   = ($size < 2048 ? $size : 2048);
+                    $buffer      = gzread($gzp, $read_size);
+                    $binary_data = pack('a'.$read_size, $buffer);
+                    @fwrite($fp, $binary_data, $read_size);
+                    $size -= $read_size;
+                }
+                fclose($fp);
+                gzclose($gzp);
+            }
+
+            touch($output, $fileinfo->getMtime());
+            //FIXME what about permissions?
+        }
+
+        $this->close();
+        return $extracted;
+    }
+
+    /**
+     * Create a new ZIP file
+     *
+     * If $file is empty, the zip file will be created in memory
+     *
+     * @param string $file
+     * @throws ArchiveIOException
+     */
+    public function create($file = '')
+    {
+        $this->file   = $file;
+        $this->memory = '';
+        $this->fh     = 0;
+
+        if ($this->file) {
+            $this->fh = @fopen($this->file, 'wb');
+
+            if (!$this->fh) {
+                throw new ArchiveIOException('Could not open file for writing: '.$this->file);
+            }
+        }
+        $this->writeaccess = true;
+        $this->closed      = false;
+        $this->ctrl_dir    = array();
+    }
+
+    /**
+     * Add a file to the current ZIP archive using an existing file in the filesystem
+     *
+     * @param string          $file     path to the original file
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data, empty to take from original
+     * @throws ArchiveIOException
+     */
+
+    /**
+     * Add a file to the current archive using an existing file in the filesystem
+     *
+     * @param string          $file     path to the original file
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data, empty to take from original
+     * @throws ArchiveIOException
+     */
+    public function addFile($file, $fileinfo = '')
+    {
+        if (is_string($fileinfo)) {
+            $fileinfo = FileInfo::fromPath($file, $fileinfo);
+        }
+
+        if ($this->closed) {
+            throw new ArchiveIOException('Archive has been closed, files can no longer be added');
+        }
+
+        $data = @file_get_contents($file);
+        if ($data === false) {
+            throw new ArchiveIOException('Could not open file for reading: '.$file);
+        }
+
+        // FIXME could we stream writing compressed data? gzwrite on a fopen handle?
+        $this->addData($fileinfo, $data);
+    }
+
+    /**
+     * Add a file to the current TAR archive using the given $data as content
+     *
+     * @param string|FileInfo $fileinfo either the name to us in archive (string) or a FileInfo oject with all meta data
+     * @param string          $data     binary content of the file to add
+     * @throws ArchiveIOException
+     */
+    public function addData($fileinfo, $data)
+    {
+        if (is_string($fileinfo)) {
+            $fileinfo = new FileInfo($fileinfo);
+        }
+
+        if ($this->closed) {
+            throw new ArchiveIOException('Archive has been closed, files can no longer be added');
+        }
+
+        // prepare the various header infos
+        $dtime    = dechex($this->makeDosTime($fileinfo->getMtime()));
+        $hexdtime = pack(
+            'H*',
+            $dtime[6].$dtime[7].
+            $dtime[4].$dtime[5].
+            $dtime[2].$dtime[3].
+            $dtime[0].$dtime[1]
+        );
+        $size     = strlen($data);
+        $crc      = crc32($data);
+        if ($this->complevel) {
+            $fmagic = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00";
+            $cmagic = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00";
+            $data   = gzcompress($data, $this->complevel);
+            $data   = substr($data, 2, -4); // strip compression headers
+        } else {
+            $fmagic = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00";
+            $cmagic = "\x50\x4b\x01\x02\x14\x00\x0a\x00\x00\x00\x00\x00";
+        }
+        $csize  = strlen($data);
+        $offset = $this->dataOffset();
+        $name   = $fileinfo->getPath();
+
+        // write data
+        $this->writebytes($fmagic);
+        $this->writebytes($hexdtime);
+        $this->writebytes(pack('V', $crc).pack('V', $csize).pack('V', $size)); //pre header
+        $this->writebytes(pack('v', strlen($name)).pack('v', 0).$name.$data); //file data
+        $this->writebytes(pack('V', $crc).pack('V', $csize).pack('V', $size)); //post header
+
+        // add info to central file directory
+        $cdrec = $cmagic;
+        $cdrec .= $hexdtime.pack('V', $crc).pack('V', $csize).pack('V', $size);
+        $cdrec .= pack('v', strlen($name)).pack('v', 0).pack('v', 0);
+        $cdrec .= pack('v', 0).pack('v', 0).pack('V', 32);
+        $cdrec .= pack('V', $offset);
+        $cdrec .= $name;
+        $this->ctrl_dir[] = $cdrec;
+    }
+
+    /**
+     * Add the closing footer to the archive if in write mode, close all file handles
+     *
+     * After a call to this function no more data can be added to the archive, for
+     * read access no reading is allowed anymore
+     */
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        } // we did this already
+
+        // write footer
+        if ($this->writeaccess) {
+            $offset  = $this->dataOffset();
+            $ctrldir = join('', $this->ctrl_dir);
+            $this->writebytes($ctrldir);
+            $this->writebytes("\x50\x4b\x05\x06\x00\x00\x00\x00"); // EOF CTRL DIR
+            $this->writebytes(pack('v', count($this->ctrl_dir)).pack('v', count($this->ctrl_dir)));
+            $this->writebytes(pack('V', strlen($ctrldir)).pack('V', strlen($offset))."\x00\x00");
+            $this->ctrl_dir = array();
+        }
+
+        // close file handles
+        if ($this->file) {
+            fclose($this->fh);
+            $this->file = '';
+            $this->fh   = 0;
+        }
+
+        $this->writeaccess = false;
+        $this->closed      = true;
+    }
+
+    /**
+     * Returns the created in-memory archive data
+     *
+     * This implicitly calls close() on the Archive
+     */
+    public function getArchive()
+    {
+        $this->close();
+
+        return $this->memory;
+    }
+
+    /**
+     * Save the created in-memory archive data
+     *
+     * Note: It's more memory effective to specify the filename in the create() function and
+     * let the library work on the new file directly.
+     *
+     * @param     $file
+     * @throws ArchiveIOException
+     */
+    public function save($file)
+    {
+        if (!file_put_contents($file, $this->getArchive())) {
+            throw new ArchiveIOException('Could not write to file: '.$file);
+        }
+    }
+
+    /**
+     * Read the central directory
+     *
+     * This key-value list contains general information about the ZIP file
+     *
+     * @return array
+     */
+    protected function readCentralDir()
+    {
+        $size = filesize($this->file);
+        if ($size < 277) {
+            $maximum_size = $size;
+        } else {
+            $maximum_size = 277;
+        }
+
+        @fseek($this->fh, $size - $maximum_size);
+        $pos   = ftell($this->fh);
+        $bytes = 0x00000000;
+
+        while ($pos < $size) {
+            $byte  = @fread($this->fh, 1);
+            $bytes = (($bytes << 8) & 0xFFFFFFFF) | ord($byte);
+            if ($bytes == 0x504b0506) {
+                break;
+            }
+            $pos++;
+        }
+
+        $data = unpack(
+            'vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size',
+            fread($this->fh, 18)
+        );
+
+        if ($data['comment_size'] != 0) {
+            $centd['comment'] = fread($this->fh, $data['comment_size']);
+        } else {
+            $centd['comment'] = '';
+        }
+        $centd['entries']      = $data['entries'];
+        $centd['disk_entries'] = $data['disk_entries'];
+        $centd['offset']       = $data['offset'];
+        $centd['disk_start']   = $data['disk_start'];
+        $centd['size']         = $data['size'];
+        $centd['disk']         = $data['disk'];
+        return $centd;
+    }
+
+    /**
+     * Read the next central file header
+     *
+     * Assumes the current file pointer is pointing at the right position
+     *
+     * @return array
+     */
+    protected function readCentralFileHeader()
+    {
+        $binary_data = fread($this->fh, 46);
+        $header      = unpack(
+            'vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset',
+            $binary_data
+        );
+
+        if ($header['filename_len'] != 0) {
+            $header['filename'] = fread($this->fh, $header['filename_len']);
+        } else {
+            $header['filename'] = '';
+        }
+
+        if ($header['extra_len'] != 0) {
+            $header['extra'] = fread($this->fh, $header['extra_len']);
+        } else {
+            $header['extra'] = '';
+        }
+
+        if ($header['comment_len'] != 0) {
+            $header['comment'] = fread($this->fh, $header['comment_len']);
+        } else {
+            $header['comment'] = '';
+        }
+
+        if ($header['mdate'] && $header['mtime']) {
+            $hour            = ($header['mtime'] & 0xF800) >> 11;
+            $minute          = ($header['mtime'] & 0x07E0) >> 5;
+            $seconde         = ($header['mtime'] & 0x001F) * 2;
+            $year            = (($header['mdate'] & 0xFE00) >> 9) + 1980;
+            $month           = ($header['mdate'] & 0x01E0) >> 5;
+            $day             = $header['mdate'] & 0x001F;
+            $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
+        } else {
+            $header['mtime'] = time();
+        }
+
+        $header['stored_filename'] = $header['filename'];
+        $header['status']          = 'ok';
+        if (substr($header['filename'], -1) == '/') {
+            $header['external'] = 0x41FF0010;
+        }
+        $header['folder'] = ($header['external'] == 0x41FF0010 || $header['external'] == 16) ? 1 : 0;
+
+        return $header;
+    }
+
+    /**
+     * Reads the local file header
+     *
+     * This header precedes each individual file inside the zip file. Assumes the current file pointer is pointing at
+     * the right position already. Enhances this given central header with the data found at the local header.
+     *
+     * @param array $header the central file header read previously (see above)
+     * @return array
+     */
+    function readFileHeader($header)
+    {
+        $binary_data = fread($this->fh, 30);
+        $data        = unpack(
+            'vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len',
+            $binary_data
+        );
+
+        $header['filename'] = fread($this->fh, $data['filename_len']);
+        if ($data['extra_len'] != 0) {
+            $header['extra'] = fread($this->fh, $data['extra_len']);
+        } else {
+            $header['extra'] = '';
+        }
+
+        $header['compression'] = $data['compression'];
+        foreach (array(
+                     'size',
+                     'compressed_size',
+                     'crc'
+                 ) as $hd) { // On ODT files, these headers are 0. Keep the previous value.
+            if ($data[$hd] != 0) {
+                $header[$hd] = $data[$hd];
+            }
+        }
+        $header['flag']  = $data['flag'];
+        $header['mdate'] = $data['mdate'];
+        $header['mtime'] = $data['mtime'];
+
+        if ($header['mdate'] && $header['mtime']) {
+            $hour            = ($header['mtime'] & 0xF800) >> 11;
+            $minute          = ($header['mtime'] & 0x07E0) >> 5;
+            $seconde         = ($header['mtime'] & 0x001F) * 2;
+            $year            = (($header['mdate'] & 0xFE00) >> 9) + 1980;
+            $month           = ($header['mdate'] & 0x01E0) >> 5;
+            $day             = $header['mdate'] & 0x001F;
+            $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
+        } else {
+            $header['mtime'] = time();
+        }
+
+        $header['stored_filename'] = $header['filename'];
+        $header['status']          = "ok";
+        $header['folder']          = ($header['external'] == 0x41FF0010 || $header['external'] == 16) ? 1 : 0;
+        return $header;
+    }
+
+    /**
+     * Create fileinfo object from header data
+     *
+     * @param $header
+     * @return FileInfo
+     */
+    protected function header2fileinfo($header)
+    {
+        $fileinfo = new FileInfo();
+        $fileinfo->setPath($header['filename']);
+        $fileinfo->setSize($header['size']);
+        $fileinfo->setCompressedSize($header['compressed_size']);
+        $fileinfo->setMtime($header['mtime']);
+        $fileinfo->setComment($header['comment']);
+        $fileinfo->setIsdir($header['external'] == 0x41FF0010 || $header['external'] == 16);
+        return $fileinfo;
+    }
+
+    /**
+     * Write to the open filepointer or memory
+     *
+     * @param string $data
+     * @throws ArchiveIOException
+     * @return int number of bytes written
+     */
+    protected function writebytes($data)
+    {
+        if (!$this->file) {
+            $this->memory .= $data;
+            $written = strlen($data);
+        } else {
+            $written = @fwrite($this->fh, $data);
+        }
+        if ($written === false) {
+            throw new ArchiveIOException('Failed to write to archive stream');
+        }
+        return $written;
+    }
+
+    /**
+     * Current data pointer position
+     *
+     * @fixme might need a -1
+     * @return int
+     */
+    protected function dataOffset()
+    {
+        if ($this->file) {
+            return ftell($this->fh);
+        } else {
+            return strlen($this->memory);
+        }
+    }
+
+    /**
+     * Create a DOS timestamp from a UNIX timestamp
+     *
+     * DOS timestamps start at 1980-01-01, earlier UNIX stamps will be set to this date
+     *
+     * @param $time
+     * @return int
+     */
+    protected function makeDosTime($time)
+    {
+        $timearray = getdate($time);
+        if ($timearray['year'] < 1980) {
+            $timearray['year']    = 1980;
+            $timearray['mon']     = 1;
+            $timearray['mday']    = 1;
+            $timearray['hours']   = 0;
+            $timearray['minutes'] = 0;
+            $timearray['seconds'] = 0;
+        }
+        return (($timearray['year'] - 1980) << 25) |
+        ($timearray['mon'] << 21) |
+        ($timearray['mday'] << 16) |
+        ($timearray['hours'] << 11) |
+        ($timearray['minutes'] << 5) |
+        ($timearray['seconds'] >> 1);
+    }
+
+}