solving problems with lack of memory, the new ZipReader and ZipWriter class, adds .phpstorm.meta.php

#13
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#41

src/Util/CryptoUtil.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace PhpZip\Util;
+
+use PhpZip\Exception\RuntimeException;
+
+/**
+ * Crypto Utils.
+ *
+ * @internal
+ */
+class CryptoUtil
+{
+    /**
+     * Returns random bytes.
+     *
+     * @param int $length
+     *
+     * @throws \Exception
+     *
+     * @return string
+     *
+     * @deprecated Use random_bytes()
+     */
+    final public static function randomBytes($length)
+    {
+        return random_bytes($length);
+    }
+
+    /**
+     * Decrypt AES-CTR.
+     *
+     * @param string $data Encrypted data
+     * @param string $key  Aes key
+     * @param string $iv   Aes IV
+     *
+     * @return string Raw data
+     */
+    public static function decryptAesCtr($data, $key, $iv)
+    {
+        if (\extension_loaded('openssl')) {
+            $numBits = \strlen($key) * 8;
+            /** @noinspection PhpComposerExtensionStubsInspection */
+            return openssl_decrypt($data, 'AES-' . $numBits . '-CTR', $key, \OPENSSL_RAW_DATA, $iv);
+        }
+
+        if (\extension_loaded('mcrypt')) {
+            return mcrypt_decrypt(\MCRYPT_RIJNDAEL_128, $key, $data, 'ctr', $iv);
+        }
+
+        throw new RuntimeException('Extension openssl or mcrypt not loaded');
+    }
+
+    /**
+     * Encrypt AES-CTR.
+     *
+     * @param string $data Raw data
+     * @param string $key  Aes key
+     * @param string $iv   Aes IV
+     *
+     * @return string Encrypted data
+     */
+    public static function encryptAesCtr($data, $key, $iv)
+    {
+        if (\extension_loaded('openssl')) {
+            $numBits = \strlen($key) * 8;
+            /** @noinspection PhpComposerExtensionStubsInspection */
+            return openssl_encrypt($data, 'AES-' . $numBits . '-CTR', $key, \OPENSSL_RAW_DATA, $iv);
+        }
+
+        if (\extension_loaded('mcrypt')) {
+            return mcrypt_encrypt(\MCRYPT_RIJNDAEL_128, $key, $data, 'ctr', $iv);
+        }
+
+        throw new RuntimeException('Extension openssl or mcrypt not loaded');
+    }
+}

src/Util/DateTimeConverter.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace PhpZip\Util;
+
+/**
+ * Convert unix timestamp values to DOS date/time values and vice versa.
+ *
+ * @author Ne-Lexa alexey@nelexa.ru
+ * @license MIT
+ *
+ * @internal
+ */
+class DateTimeConverter
+{
+    /**
+     * Smallest supported DOS date/time value in a ZIP file,
+     * which is January 1st, 1980 AD 00:00:00 local time.
+     */
+    const MIN_DOS_TIME = 0x210000; // (1 << 21) | (1 << 16)
+
+    /**
+     * Largest supported DOS date/time value in a ZIP file,
+     * which is December 31st, 2107 AD 23:59:58 local time.
+     */
+    const MAX_DOS_TIME = 0xff9fbf7d; // ((2107 - 1980) << 25) | (12 << 21) | (31 << 16) | (23 << 11) | (59 << 5) | (58 >> 1);
+
+    /**
+     * Convert a 32 bit integer DOS date/time value to a UNIX timestamp value.
+     *
+     * @param int $dosTime Dos date/time
+     *
+     * @return int Unix timestamp
+     */
+    public static function toUnixTimestamp($dosTime)
+    {
+        if ($dosTime < self::MIN_DOS_TIME) {
+            $dosTime = self::MIN_DOS_TIME;
+        } elseif ($dosTime > self::MAX_DOS_TIME) {
+            $dosTime = self::MAX_DOS_TIME;
+        }
+
+        return mktime(
+            ($dosTime >> 11) & 0x1f,         // hour
+            ($dosTime >> 5) & 0x3f,        // minute
+            2 * ($dosTime & 0x1f),         // second
+            ($dosTime >> 21) & 0x0f,       // month
+            ($dosTime >> 16) & 0x1f,         // day
+            1980 + (($dosTime >> 25) & 0x7f) // year
+        );
+    }
+
+    /**
+     * Converts a UNIX timestamp value to a DOS date/time value.
+     *
+     * @param int $unixTimestamp the number of seconds since midnight, January 1st,
+     *                           1970 AD UTC
+     *
+     * @return int a DOS date/time value reflecting the local time zone and
+     *             rounded down to even seconds
+     *             and is in between DateTimeConverter::MIN_DOS_TIME and DateTimeConverter::MAX_DOS_TIME
+     */
+    public static function toDosTime($unixTimestamp)
+    {
+        if ($unixTimestamp < 0) {
+            throw new \InvalidArgumentException('Negative unix timestamp: ' . $unixTimestamp);
+        }
+
+        $date = getdate($unixTimestamp);
+
+        if ($date['year'] < 1980) {
+            return self::MIN_DOS_TIME;
+        }
+
+        $date['year'] -= 1980;
+
+        return $date['year'] << 25 | $date['mon'] << 21 |
+            $date['mday'] << 16 | $date['hours'] << 11 |
+            $date['minutes'] << 5 | $date['seconds'] >> 1;
+    }
+}

src/Util/FileAttribUtil.php

@@ -0,0 +1,108 @@
+<?php
+
+namespace PhpZip\Util;
+
+use PhpZip\Constants\DosAttrs;
+use PhpZip\Constants\UnixStat;
+
+/**
+ * Class FileAttribUtil.
+ *
+ * @internal
+ */
+class FileAttribUtil implements DosAttrs, UnixStat
+{
+    /**
+     * Get DOS mode,.
+     *
+     * @param int $xattr
+     *
+     * @return string
+     */
+    public static function getDosMode($xattr)
+    {
+        $xattr = (int) $xattr;
+
+        $mode = (($xattr & self::DOS_DIRECTORY) === self::DOS_DIRECTORY) ? 'd' : '-';
+        $mode .= (($xattr & self::DOS_ARCHIVE) === self::DOS_ARCHIVE) ? 'a' : '-';
+        $mode .= (($xattr & self::DOS_READ_ONLY) === self::DOS_READ_ONLY) ? 'r' : '-';
+        $mode .= (($xattr & self::DOS_HIDDEN) === self::DOS_HIDDEN) ? 'h' : '-';
+        $mode .= (($xattr & self::DOS_SYSTEM) === self::DOS_SYSTEM) ? 's' : '-';
+        $mode .= (($xattr & self::DOS_LABEL) === self::DOS_LABEL) ? 'l' : '-';
+
+        return $mode;
+    }
+
+    /**
+     * @param int $permission
+     *
+     * @return string
+     */
+    public static function getUnixMode($permission)
+    {
+        $mode = '';
+        $permission = (int) $permission;
+        switch ($permission & self::UNX_IFMT) {
+            case self::UNX_IFDIR:
+                $mode .= 'd';
+                break;
+
+            case self::UNX_IFREG:
+                $mode .= '-';
+                break;
+
+            case self::UNX_IFLNK:
+                $mode .= 'l';
+                break;
+
+            case self::UNX_IFBLK:
+                $mode .= 'b';
+                break;
+
+            case self::UNX_IFCHR:
+                $mode .= 'c';
+                break;
+
+            case self::UNX_IFIFO:
+                $mode .= 'p';
+                break;
+
+            case self::UNX_IFSOCK:
+                $mode .= 's';
+                break;
+
+            default:
+                $mode .= '?';
+                break;
+        }
+        $mode .= ($permission & self::UNX_IRUSR) ? 'r' : '-';
+        $mode .= ($permission & self::UNX_IWUSR) ? 'w' : '-';
+
+        if ($permission & self::UNX_IXUSR) {
+            $mode .= ($permission & self::UNX_ISUID) ? 's' : 'x';
+        } else {
+            $mode .= ($permission & self::UNX_ISUID) ? 'S' : '-';  // S==undefined
+        }
+        $mode .= ($permission & self::UNX_IRGRP) ? 'r' : '-';
+        $mode .= ($permission & self::UNX_IWGRP) ? 'w' : '-';
+
+        if ($permission & self::UNX_IXGRP) {
+            $mode .= ($permission & self::UNX_ISGID) ? 's' : 'x';
+        }  // == self::UNX_ENFMT
+        else {
+            $mode .= ($permission & self::UNX_ISGID) ? 'S' : '-';
+        }  // SunOS 4.1.x
+
+        $mode .= ($permission & self::UNX_IROTH) ? 'r' : '-';
+        $mode .= ($permission & self::UNX_IWOTH) ? 'w' : '-';
+
+        if ($permission & self::UNX_IXOTH) {
+            $mode .= ($permission & self::UNX_ISVTX) ? 't' : 'x';
+        }  // "sticky bit"
+        else {
+            $mode .= ($permission & self::UNX_ISVTX) ? 'T' : '-';
+        }  // T==undefined
+
+        return $mode;
+    }
+}

src/Util/FilesUtil.php

@@ -0,0 +1,466 @@
+<?php
+
+namespace PhpZip\Util;
+
+use PhpZip\Util\Iterator\IgnoreFilesFilterIterator;
+use PhpZip\Util\Iterator\IgnoreFilesRecursiveFilterIterator;
+
+/**
+ * Files util.
+ *
+ * @author Ne-Lexa alexey@nelexa.ru
+ * @license MIT
+ *
+ * @internal
+ */
+final class FilesUtil
+{
+    /**
+     * Is empty directory.
+     *
+     * @param string $dir Directory
+     *
+     * @return bool
+     */
+    public static function isEmptyDir($dir)
+    {
+        if (!is_readable($dir)) {
+            return false;
+        }
+
+        return \count(scandir($dir)) === 2;
+    }
+
+    /**
+     * Remove recursive directory.
+     *
+     * @param string $dir directory path
+     */
+    public static function removeDir($dir)
+    {
+        $files = new \RecursiveIteratorIterator(
+            new \RecursiveDirectoryIterator($dir, \RecursiveDirectoryIterator::SKIP_DOTS),
+            \RecursiveIteratorIterator::CHILD_FIRST
+        );
+
+        foreach ($files as $fileInfo) {
+            $function = ($fileInfo->isDir() ? 'rmdir' : 'unlink');
+            $function($fileInfo->getRealPath());
+        }
+        rmdir($dir);
+    }
+
+    /**
+     * Convert glob pattern to regex pattern.
+     *
+     * @param string $globPattern
+     *
+     * @return string
+     */
+    public static function convertGlobToRegEx($globPattern)
+    {
+        // Remove beginning and ending * globs because they're useless
+        $globPattern = trim($globPattern, '*');
+        $escaping = false;
+        $inCurrent = 0;
+        $chars = str_split($globPattern);
+        $regexPattern = '';
+
+        foreach ($chars as $currentChar) {
+            switch ($currentChar) {
+                case '*':
+                    $regexPattern .= ($escaping ? '\\*' : '.*');
+                    $escaping = false;
+                    break;
+
+                case '?':
+                    $regexPattern .= ($escaping ? '\\?' : '.');
+                    $escaping = false;
+                    break;
+
+                case '.':
+                case '(':
+                case ')':
+                case '+':
+                case '|':
+                case '^':
+                case '$':
+                case '@':
+                case '%':
+                    $regexPattern .= '\\' . $currentChar;
+                    $escaping = false;
+                    break;
+
+                case '\\':
+                    if ($escaping) {
+                        $regexPattern .= '\\\\';
+                        $escaping = false;
+                    } else {
+                        $escaping = true;
+                    }
+                    break;
+
+                case '{':
+                    if ($escaping) {
+                        $regexPattern .= '\\{';
+                    } else {
+                        $regexPattern = '(';
+                        $inCurrent++;
+                    }
+                    $escaping = false;
+                    break;
+
+                case '}':
+                    if ($inCurrent > 0 && !$escaping) {
+                        $regexPattern .= ')';
+                        $inCurrent--;
+                    } elseif ($escaping) {
+                        $regexPattern = '\\}';
+                    } else {
+                        $regexPattern = '}';
+                    }
+                    $escaping = false;
+                    break;
+
+                case ',':
+                    if ($inCurrent > 0 && !$escaping) {
+                        $regexPattern .= '|';
+                    } elseif ($escaping) {
+                        $regexPattern .= '\\,';
+                    } else {
+                        $regexPattern = ',';
+                    }
+                    break;
+                default:
+                    $escaping = false;
+                    $regexPattern .= $currentChar;
+            }
+        }
+
+        return $regexPattern;
+    }
+
+    /**
+     * Search files.
+     *
+     * @param string $inputDir
+     * @param bool   $recursive
+     * @param array  $ignoreFiles
+     *
+     * @return array Searched file list
+     */
+    public static function fileSearchWithIgnore($inputDir, $recursive = true, array $ignoreFiles = [])
+    {
+        if ($recursive) {
+            $directoryIterator = new \RecursiveDirectoryIterator($inputDir);
+
+            if (!empty($ignoreFiles)) {
+                $directoryIterator = new IgnoreFilesRecursiveFilterIterator($directoryIterator, $ignoreFiles);
+            }
+            $iterator = new \RecursiveIteratorIterator($directoryIterator);
+        } else {
+            $directoryIterator = new \DirectoryIterator($inputDir);
+
+            if (!empty($ignoreFiles)) {
+                $directoryIterator = new IgnoreFilesFilterIterator($directoryIterator, $ignoreFiles);
+            }
+            $iterator = new \IteratorIterator($directoryIterator);
+        }
+
+        $fileList = [];
+
+        foreach ($iterator as $file) {
+            if ($file instanceof \SplFileInfo) {
+                $fileList[] = $file->getPathname();
+            }
+        }
+
+        return $fileList;
+    }
+
+    /**
+     * Search files from glob pattern.
+     *
+     * @param string $globPattern
+     * @param int    $flags
+     * @param bool   $recursive
+     *
+     * @return array Searched file list
+     */
+    public static function globFileSearch($globPattern, $flags = 0, $recursive = true)
+    {
+        $flags = (int) $flags;
+        $recursive = (bool) $recursive;
+        $files = glob($globPattern, $flags);
+
+        if (!$recursive) {
+            return $files;
+        }
+
+        foreach (glob(\dirname($globPattern) . '/*', \GLOB_ONLYDIR | \GLOB_NOSORT) as $dir) {
+            // Unpacking the argument via ... is supported starting from php 5.6 only
+            /** @noinspection SlowArrayOperationsInLoopInspection */
+            $files = array_merge($files, self::globFileSearch($dir . '/' . basename($globPattern), $flags, $recursive));
+        }
+
+        return $files;
+    }
+
+    /**
+     * Search files from regex pattern.
+     *
+     * @param string $folder
+     * @param string $pattern
+     * @param bool   $recursive
+     *
+     * @return array Searched file list
+     */
+    public static function regexFileSearch($folder, $pattern, $recursive = true)
+    {
+        if ($recursive) {
+            $directoryIterator = new \RecursiveDirectoryIterator($folder);
+            $iterator = new \RecursiveIteratorIterator($directoryIterator);
+        } else {
+            $directoryIterator = new \DirectoryIterator($folder);
+            $iterator = new \IteratorIterator($directoryIterator);
+        }
+
+        $regexIterator = new \RegexIterator($iterator, $pattern, \RegexIterator::MATCH);
+        $fileList = [];
+
+        foreach ($regexIterator as $file) {
+            if ($file instanceof \SplFileInfo) {
+                $fileList[] = $file->getPathname();
+            }
+        }
+
+        return $fileList;
+    }
+
+    /**
+     * Convert bytes to human size.
+     *
+     * @param int         $size Size bytes
+     * @param string|null $unit Unit support 'GB', 'MB', 'KB'
+     *
+     * @return string
+     */
+    public static function humanSize($size, $unit = null)
+    {
+        if (($unit === null && $size >= 1 << 30) || $unit === 'GB') {
+            return number_format($size / (1 << 30), 2) . 'GB';
+        }
+
+        if (($unit === null && $size >= 1 << 20) || $unit === 'MB') {
+            return number_format($size / (1 << 20), 2) . 'MB';
+        }
+
+        if (($unit === null && $size >= 1 << 10) || $unit === 'KB') {
+            return number_format($size / (1 << 10), 2) . 'KB';
+        }
+
+        return number_format($size) . ' bytes';
+    }
+
+    /**
+     * Normalizes zip path.
+     *
+     * @param string $path Zip path
+     *
+     * @return string
+     */
+    public static function normalizeZipPath($path)
+    {
+        return implode(
+            '/',
+            array_filter(
+                explode('/', (string) $path),
+                static function ($part) {
+                    return $part !== '.' && $part !== '..';
+                }
+            )
+        );
+    }
+
+    /**
+     * Returns whether the file path is an absolute path.
+     *
+     * @param string $file A file path
+     *
+     * @return bool
+     *
+     * @see source symfony filesystem component
+     */
+    public static function isAbsolutePath($file)
+    {
+        return strspn($file, '/\\', 0, 1)
+            || (
+                \strlen($file) > 3 && ctype_alpha($file[0])
+                && $file[1] === ':'
+                && strspn($file, '/\\', 2, 1)
+            )
+            || parse_url($file, \PHP_URL_SCHEME) !== null;
+    }
+
+    /**
+     * @param string $linkPath
+     * @param string $target
+     *
+     * @return bool
+     */
+    public static function symlink($target, $linkPath)
+    {
+        if (\DIRECTORY_SEPARATOR === '\\') {
+            $linkPath = str_replace('/', '\\', $linkPath);
+            $target = str_replace('/', '\\', $target);
+            $abs = null;
+
+            if (!self::isAbsolutePath($target)) {
+                $abs = realpath(\dirname($linkPath) . \DIRECTORY_SEPARATOR . $target);
+
+                if (\is_string($abs)) {
+                    $target = $abs;
+                }
+            }
+        }
+
+        if (!symlink($target, $linkPath)) {
+            if (\DIRECTORY_SEPARATOR === '\\' && is_file($target)) {
+                return copy($target, $linkPath);
+            }
+
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * @param string $file
+     *
+     * @return bool
+     */
+    public static function isBadCompressionFile($file)
+    {
+        $badCompressFileExt = [
+            'dic',
+            'dng',
+            'f4v',
+            'flipchart',
+            'h264',
+            'lrf',
+            'mobi',
+            'mts',
+            'nef',
+            'pspimage',
+        ];
+
+        $ext = strtolower(pathinfo($file, \PATHINFO_EXTENSION));
+
+        if (\in_array($ext, $badCompressFileExt, true)) {
+            return true;
+        }
+
+        $mimeType = self::getMimeTypeFromFile($file);
+
+        return self::isBadCompressionMimeType($mimeType);
+    }
+
+    /**
+     * @param string $mimeType
+     *
+     * @return bool
+     */
+    public static function isBadCompressionMimeType($mimeType)
+    {
+        static $badDeflateCompMimeTypes = [
+            'application/epub+zip',
+            'application/gzip',
+            'application/vnd.debian.binary-package',
+            'application/vnd.oasis.opendocument.graphics',
+            'application/vnd.oasis.opendocument.presentation',
+            'application/vnd.oasis.opendocument.text',
+            'application/vnd.oasis.opendocument.text-master',
+            'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+            'application/vnd.rn-realmedia',
+            'application/x-7z-compressed',
+            'application/x-arj',
+            'application/x-bzip2',
+            'application/x-hwp',
+            'application/x-lzip',
+            'application/x-lzma',
+            'application/x-ms-reader',
+            'application/x-rar',
+            'application/x-rpm',
+            'application/x-stuffit',
+            'application/x-tar',
+            'application/x-xz',
+            'application/zip',
+            'application/zlib',
+            'audio/flac',
+            'audio/mpeg',
+            'audio/ogg',
+            'audio/vnd.dolby.dd-raw',
+            'audio/webm',
+            'audio/x-ape',
+            'audio/x-hx-aac-adts',
+            'audio/x-m4a',
+            'audio/x-m4a',
+            'audio/x-wav',
+            'image/gif',
+            'image/heic',
+            'image/jp2',
+            'image/jpeg',
+            'image/png',
+            'image/vnd.djvu',
+            'image/webp',
+            'image/x-canon-cr2',
+            'video/ogg',
+            'video/webm',
+            'video/x-matroska',
+            'video/x-ms-asf',
+            'x-epoc/x-sisx-app',
+        ];
+
+        if (\in_array($mimeType, $badDeflateCompMimeTypes, true)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param string $file
+     *
+     * @return string
+     *
+     * @noinspection PhpComposerExtensionStubsInspection
+     */
+    public static function getMimeTypeFromFile($file)
+    {
+        if (\function_exists('mime_content_type')) {
+            return mime_content_type($file);
+        }
+
+        return 'application/octet-stream';
+    }
+
+    /**
+     * @param string $contents
+     *
+     * @return string
+     * @noinspection PhpComposerExtensionStubsInspection
+     */
+    public static function getMimeTypeFromString($contents)
+    {
+        $contents = (string) $contents;
+        $finfo = new \finfo(\FILEINFO_MIME);
+        $mimeType = $finfo->buffer($contents);
+
+        if ($mimeType === false) {
+            $mimeType = 'application/octet-stream';
+        }
+
+        return explode(';', $mimeType)[0];
+    }
+}

src/Util/Iterator/IgnoreFilesFilterIterator.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace PhpZip\Util\Iterator;
+
+use PhpZip\Util\StringUtil;
+
+/**
+ * Iterator for ignore files.
+ *
+ * @author Ne-Lexa alexey@nelexa.ru
+ * @license MIT
+ */
+class IgnoreFilesFilterIterator extends \FilterIterator
+{
+    /**
+     * Ignore list files.
+     *
+     * @var array
+     */
+    private $ignoreFiles = ['..'];
+
+    /**
+     * @param \Iterator $iterator
+     * @param array     $ignoreFiles
+     */
+    public function __construct(\Iterator $iterator, array $ignoreFiles)
+    {
+        parent::__construct($iterator);
+        $this->ignoreFiles = array_merge($this->ignoreFiles, $ignoreFiles);
+    }
+
+    /**
+     * Check whether the current element of the iterator is acceptable.
+     *
+     * @see http://php.net/manual/en/filteriterator.accept.php
+     *
+     * @return bool true if the current element is acceptable, otherwise false
+     *
+     * @since 5.1.0
+     */
+    public function accept()
+    {
+        /**
+         * @var \SplFileInfo $fileInfo
+         */
+        $fileInfo = $this->current();
+        $pathname = str_replace('\\', '/', $fileInfo->getPathname());
+
+        foreach ($this->ignoreFiles as $ignoreFile) {
+            // handler dir and sub dir
+            if ($fileInfo->isDir()
+                && StringUtil::endsWith($ignoreFile, '/')
+                && StringUtil::endsWith($pathname, substr($ignoreFile, 0, -1))
+            ) {
+                return false;
+            }
+
+            // handler filename
+            if (StringUtil::endsWith($pathname, $ignoreFile)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}

src/Util/Iterator/IgnoreFilesRecursiveFilterIterator.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace PhpZip\Util\Iterator;
+
+use PhpZip\Util\StringUtil;
+
+/**
+ * Recursive iterator for ignore files.
+ *
+ * @author Ne-Lexa alexey@nelexa.ru
+ * @license MIT
+ */
+class IgnoreFilesRecursiveFilterIterator extends \RecursiveFilterIterator
+{
+    /**
+     * Ignore list files.
+     *
+     * @var array
+     */
+    private $ignoreFiles = ['..'];
+
+    /**
+     * @param \RecursiveIterator $iterator
+     * @param array              $ignoreFiles
+     */
+    public function __construct(\RecursiveIterator $iterator, array $ignoreFiles)
+    {
+        parent::__construct($iterator);
+        $this->ignoreFiles = array_merge($this->ignoreFiles, $ignoreFiles);
+    }
+
+    /**
+     * Check whether the current element of the iterator is acceptable.
+     *
+     * @see http://php.net/manual/en/filteriterator.accept.php
+     *
+     * @return bool true if the current element is acceptable, otherwise false
+     *
+     * @since 5.1.0
+     */
+    public function accept()
+    {
+        /**
+         * @var \SplFileInfo $fileInfo
+         */
+        $fileInfo = $this->current();
+        $pathname = str_replace('\\', '/', $fileInfo->getPathname());
+
+        foreach ($this->ignoreFiles as $ignoreFile) {
+            // handler dir and sub dir
+            if ($fileInfo->isDir()
+                && $ignoreFile[\strlen($ignoreFile) - 1] === '/'
+                && StringUtil::endsWith($pathname, substr($ignoreFile, 0, -1))
+            ) {
+                return false;
+            }
+
+            // handler filename
+            if (StringUtil::endsWith($pathname, $ignoreFile)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @return IgnoreFilesRecursiveFilterIterator
+     */
+    public function getChildren()
+    {
+        return new self($this->getInnerIterator()->getChildren(), $this->ignoreFiles);
+    }
+}

src/Util/PackUtil.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace PhpZip\Util;
+
+/**
+ * Pack util.
+ *
+ * @author Ne-Lexa alexey@nelexa.ru
+ * @license MIT
+ *
+ * @internal
+ */
+final class PackUtil
+{
+    /**
+     * @param int $longValue
+     *
+     * @return string
+     */
+    public static function packLongLE($longValue)
+    {
+        if (\PHP_VERSION_ID >= 506030) {
+            return pack('P', $longValue);
+        }
+
+        $left = 0xffffffff00000000;
+        $right = 0x00000000ffffffff;
+
+        $r = ($longValue & $left) >> 32;
+        $l = $longValue & $right;
+
+        return pack('VV', $l, $r);
+    }
+
+    /**
+     * @param string $value
+     *
+     * @return int
+     */
+    public static function unpackLongLE($value)
+    {
+        if (\PHP_VERSION_ID >= 506030) {
+            return unpack('P', $value)[1];
+        }
+        $unpack = unpack('Va/Vb', $value);
+
+        return $unpack['a'] + ($unpack['b'] << 32);
+    }
+
+    /**
+     * Cast to signed int 32-bit.
+     *
+     * @param int $int
+     *
+     * @return int
+     */
+    public static function toSignedInt32($int)
+    {
+        if (\PHP_INT_SIZE === 8) {
+            $int &= 0xffffffff;
+
+            if ($int & 0x80000000) {
+                return $int - 0x100000000;
+            }
+        }
+
+        return $int;
+    }
+}

src/Util/StringUtil.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace PhpZip\Util;
+
+/**
+ * String Util.
+ *
+ * @internal
+ */
+final class StringUtil
+{
+    /**
+     * @param string $haystack
+     * @param string $needle
+     *
+     * @return bool
+     */
+    public static function startsWith($haystack, $needle)
+    {
+        return $needle === '' || strrpos($haystack, $needle, -\strlen($haystack)) !== false;
+    }
+
+    /**
+     * @param string $haystack
+     * @param string $needle
+     *
+     * @return bool
+     */
+    public static function endsWith($haystack, $needle)
+    {
+        return $needle === '' || (($temp = \strlen($haystack) - \strlen($needle)) >= 0
+                && strpos($haystack, $needle, $temp) !== false);
+    }
+
+    /**
+     * @param string $string
+     *
+     * @return bool
+     */
+    public static function isBinary($string)
+    {
+        return strpos($string, "\0") !== false;
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return bool
+     */
+    public static function isASCII($name)
+    {
+        return preg_match('~[^\x20-\x7e]~', (string) $name) === 0;
+    }
+}