UnifiedArchive - 一个统一的压缩文件提取和创建的PHP工具

UnifiedArchive - unified interface to archive (zip # 7z # rar # gz # bz2 # xz # cab # tar # tar.gz # tar.bz2 # tar.x # tar.Z # iso-9660) for listing, reading, extracting and creation + built-in console packer and unpacker + fully implemented PclZip-like interface (create, listContent, extract, properties, add, delete, merge, duplicate).

Contents:

1. Preamble
2. Installation
3. Process of archive reading
   1. Process of archive modification
   2. Process of archive creation
      1. Restrictions
4. Built-in archiver
5. API
   1. Object methods
   2. Static methods
6. PclZip-like interface
7. Examples
8. Changelog

Preamble

If on your site there is a possibility of uploading of archives and you would like to add functionality of their automatic unpacking and viewing with no dependency on format of the archive, you can use this library.

Installation

Composer package: wapmorgan/unified-archive [1]

{
    "require": {
            "wapmorgan/unified-archive": "dev-master"
    }
}

Process of archive reading

1. Import a class

   require 'vendor/autoload.php';
   use \wapmorgan\UnifiedArchive\UnifiedArchive;

2. At the beginning, try to open the file with automatic detection of a format by name. In case of successful recognition the object of UnifiedArchive will be returned. in case of failure - null

   $archive = UnifiedArchive::open('filename.rar');
   // or
   $archive = UnifiedArchive::open('filename.zip');
   // or
   $archive = UnifiedArchive::open('filename.7z');
   // or
   $archive = UnifiedArchive::open('filename.gz');
   // or
   $archive = UnifiedArchive::open('filename.bz2');
   // or
   $archive = UnifiedArchive::open('filename.xz');
   // or
   $archive = UnifiedArchive::open('filename.cab');
   // or
   $archive = UnifiedArchive::open('filename.tar');
   // or
   $archive = UnifiedArchive::open('filename.tar.gz');
   // or
   $archive = UnifiedArchive::open('filename.tar.bz2');
   // or
   $archive = UnifiedArchive::open('filename.tar.xz');
   // or
   $archive = UnifiedArchive::open('filename.tar.Z');
   // or
   $archive = UnifiedArchive::open('filename.iso');

3. Further, read the list of files of archive (notice, this function returns only names of files)

   var_dump($archive->getFileNames());

4. Further, you can receive additional information on the concrete file by means of the getFileData function

   var_dump($archive->getFileData('README.md'));

5. Further, you can receive file contents by means of the getFileContent function

   var_dump($archive->getFileContent('README.md'));

6. Further you can unpack any internal catalog with files on a disk. Including all archive (the root catalog of archive). The extractNode method is engaged in it. In case of success, it returns number of the mentioned files, in case of failure - false. Initial and final symbol of division of catalogs are very important! Don't forget them.

   $archive->extractNode(outputFolder, archiveFolder = '/');
   // to unpack all contents of archive
   $archive->extractNode(tmpnam('/tmp', 'arc'));
   // to unpack the src catalog in archive in the sources catalog on a disk
   $archive->extractNode(tmpnam('/tmp', 'sources'), '/src/');
   // to unpack the bookmarks catalog in archive in the sources catalog on a
   // disk
   $archive->extractNode(tmpnam('/tmp', 'sources'), '/bookmarks/');

Process of archive modification

To delete a single file from an archive:

$archive->deleteFiles('README.md');

To delete multiple files from an archive

$archive->deleteFiles(array('README.md', 'MANIFEST.MF'));

In case of success the number of successfully deleted files will be returned.

Process of archive addition

To add completely the catalog with all attached files and subdirectories:

$archive->addFiles('/var/log');

To add one file:

$archive->addFiles('/var/log/syslog');

To add some files or catalogs:

$archive->addFiles(array(directory, file, file2, ...));

Full syntax of multiple files addition is described in next section Process of archive creation.

Process of archive creation

To pack completely the catalog with all attached files and subdirectories:

UnifiedArchive::archiveNodes('/var/log', 'Archive.zip');

To pack one file:

UnifiedArchive::archiveNodes('/var/log/syslog', 'Archive.zip');

To pack some files or catalogs:

UnifiedArchive::archiveNodes(array(directory, file, file2, ...), 'Archive.zip');

Extended syntax with possibility of rewriting of paths and additional opportunities:

$nodes = array(
    array('source' => '/etc/php5/fpm/php.ini', 'destination' => 'php.ini'),
    array('source' => '/home/.../Dropbox/software/1/',
        'destination' => 'SoftwareVersions/', 'recursive' => true),
    array('source' => '/home/.../Dropbox/software/2/',
        'destination' => 'SoftwareVersions/', 'recursive' => true),
    array('source' => 'pictures/other/cats/*', 'destination' => 'Pictures/'),
    array('source' => '~/Desktop/catties/*', 'destination' => 'Pictures/'),
    array('source' => '/media/wapmorgan/.../Cats/*',
        'destination' => 'Pictures/'),
);
UnifiedArchive::archiveNodes($nodes, 'Archive.zip');

Complete description of expanded syntax with examples and explanations: Full archiveNodes and addFiles documentation.

Restrictions

It is impossible to create the ideal archiver, here therefore some restrictions and technical features are listed further:

1. Creation of rar, iso archives is impossible.
2. If the source doesn't end with / or *, it means there has to be a file.
3. If the source is a directory, destination too means has to be a directory (to terminate on "/").

Built-in archiver

To see all opportunities of this remarkable UnifiedArchive, together with source codes some scripts are delivered. They can become quite good replacement to standard commands of file system (tar, unzip, rar, gzip).

You noticed? The universal extractor itself defines type of archive and there is no need manually to choose type.

We will continue and look at examples of replacement of the unbridled number of utilities on one command:

In the future probably I will add still some scripts or I will update existing with new functions.

It is very easy and equally universal for any of supported types of archives (which already about 13)!

Try, it will be pleasant to you!

It is possible even to use the console version of the archiver in daily work for viewing of contents of archive from the terminal!

Conveniently, isn't that so?

API

Create object of class \wapmorgan\UnifiedArchive\UnifiedArchive implementing the \wapmorgan\UnifiedArchive\AbstractArchive interface which has the following methods:

Object methods

public function __construct($filename, $type);

Creation of object of a class.

public function getFileNames();

Obtaining the list of files in archive. The symbol of division of catalogs can be both a slash, and a backslash (depends on format).

public function getFileData($filename);

Obtaining detailed information on the file in archive. The name of the file has to COINCIDE in ACCURACY with what is registered in archive. It is restricted to add gaps or other symbols, to change a symbol of division of catalogs. This method returns object of stdClass which has following fields:

• filename - file name in archive.
• compressed_size - the size of the PACKED contents of the file.
• uncompressed_size - the size of the UNPACKED contents of the file.
• mtime - time of change of the file (the integer value containing number of seconds, passed since the beginning of an era of Unix).
• is_compressed - the Boolean value, containing "truth" if the file was packed with compression.

public function getFileContent($filename);

Receiving "crude" contents of the file. For text files it also is the text, for images/video/music are crude binary data. The file name besides has to be in accuracy as in archive.

public function countFiles();

Counts total of all files in archive.

public function getArchiveSize();

Counts the archive size (the file size).

public function getArchiveType();

Receives archive type.

public function countCompressedFilesSize();

Counts the size of all PACKED useful data (that is contents of all files listed in archive).

public function countUncompressedFilesSize();

Counts the size of all UNPACKED useful data (that is contents of all files listed in archive).

public function extractNode($outputFolder, $node = '/');

Unpacks any of internal catalogs archive with full preservation of structure of catalogs in the catalog on a hard disk.

public function deleteFiles($fileOrFiles);

Updates existing archive by removing files from it. Returns number of deleted files.

public function addFiles($nodes);

Updates existing archive by adding new files. Returns total number of files after addition.

Static methods

static public function open($filename);

Tries to distinguish type of archive and creates an instance UnifiedArchive in case of success, returns null in case of failure.

static public function archiveNodes($nodes, $aname);

Archives nodes transferred in the first argument. Returns number of the archived files in case of success, in case of failure - false. If as the third argument (yes, real signature is static public function archiveNodes(array $nodes, $aname, $fake = false)) true is transferred, then the real archiving doesn't occur, and the result contains the list of the files chosen for an archiving, their number and total size.

PclZip-like interface

UnifedArchive provides full realization of the interface known on archiving popular library of PclZip (only for zip format, the last version 2.8.2).

Let's look at it:

use wapmorgan\UnifiedArchive\UnifiedArchive;
require 'vendor/autoload.php';
$archive = UnifiedArchive::open('ziparchive.zip');
$pclzip = $archive->pclzipInteface();

You are from this point free to use all available methods provided by the class PclZip:

1. create() - creation of new archive, packing of files and catalogs.
2. listContent() - receiving contents of archive.
3. extract() - unpacking of files and catalogs.
4. properties() - obtaining information on archive.
5. add() - addition of files in archive.
6. delete() - cleaning of archive of files.
7. merge() - "pasting" of two archives.
8. duplicate() - archive cloning.

All available options and the parameters accepted by original PclZip are also available.

It is also important to note increase in productivity when using my version of the PclZip-interface using a native class for work, over old and working with "crude" contents of archive means of the PHP-interpreter.

The PclZip-interface is at present in a stage of experimental realization. I ask to take it into account.

For those who isn't familiar with the PclZip interface or wishes to refresh knowledge, visit official documentation on PclZip on the official site: http://www.phpconcept.net/pclzip.

Also I need to note that one of an option nevertheless is unrealizable: PCLZIP_OPT_NO_COMPRESSION. This option allows to disconnect compression for added files. At present the native library for work doesn't allow to change compression parameters from zip-archive - all added the file forcibly contract. I tried to find a roundabout way, but at present to make it it didn't turn out.

Performance comparation

To confirm my words about boost that UnifiedArchive can make in your project, here's comparation table of UnifiedArchive and PclZip extracting the same archives.

Average growth is 27%!

Examples

In the examples catalog there are some files for check of operability of the program. start them from a command line.

• Transfer a catalog name in cli.fs.php to scan directory for all archives.
• Transfer a path to archive in cli.hierachy.php for unpacking / listing.
• Transfer a path to archive and list of files in cli.pack.php for archiving.

Changelog