Automatically generated by Pod::Man 2.28 (Pod::Simple 3.29)

Standard preamble:
========================================================================

   # Create a Zip file
   use Archive::Zip qw( :ERROR_CODES :CONSTANTS );
   my $zip = Archive::Zip->new();

   # Add a directory
   my $dir_member = $zip->addDirectory( 'dirname/' );

   # Add a file from a string with compression
   my $string_member = $zip->addString( 'This is a test', 'stringMember.txt' );
   $string_member->desiredCompressionMethod( COMPRESSION_DEFLATED );

   # Add a file from disk
   my $file_member = $zip->addFile( 'xyz.pl', 'AnotherName.pl' );

   # Save the Zip file
   unless ( $zip->writeToFileNamed('someZip.zip') == AZ_OK ) {
       die 'write error';
   }

   # Read a Zip file
   my $somezip = Archive::Zip->new();
   unless ( $somezip->read( 'someZip.zip' ) == AZ_OK ) {
       die 'read error';
   }

   # Change the compression type for a file in the Zip
   my $member = $somezip->memberNamed( 'stringMember.txt' );
   $member->desiredCompressionMethod( COMPRESSION_STORED );
   unless ( $zip->writeToFileNamed( 'someOtherZip.zip' ) == AZ_OK ) {
       die 'write error';
   }

  Exporter
   Archive::Zip                            Common base class, has defs.
       Archive::Zip::Archive               A Zip archive.
       Archive::Zip::Member                Abstract superclass for all members.
           Archive::Zip::StringMember      Member made from a string
           Archive::Zip::FileMember        Member made from an external file
               Archive::Zip::ZipFileMember Member that lives in a zip file
               Archive::Zip::NewFileMember Member whose data is in a file
           Archive::Zip::DirectoryMember   Member that is a directory

  use Archive::Zip qw( :ERROR_CODES );

  ...

  unless ( $zip->read( 'myfile.zip' ) == AZ_OK ) {
      die "whoops!";
  }

Compression

Other compression algorithms that some versions of

These can be different, of course, so you can make a zip member that is not compressed out of one that is, and vice versa.

You can inquire about the current compression and set the desired compression method:

  my $member = $zip->memberNamed( 'xyz.txt' );
  $member->compressionMethod();    # return current compression

  # set to read uncompressed
  $member->desiredCompressionMethod( COMPRESSION_STORED );

  # set to read compressed
  $member->desiredCompressionMethod( COMPRESSION_DEFLATED );

There are two different compression methods:

COMPRESSION_STORED

File is stored (no compression)

COMPRESSION_DEFLATED

File is Deflated

Compression Levels

  $member->desiredCompressionLevel( 9 );

The levels given can be:

*

0 or

COMPRESSION_LEVEL_NONE

This is the same as saying

  $member->desiredCompressionMethod( COMPRESSION_STORED );

*

1 .. 9

1 gives the best speed and worst compression, and 9 gives the best compression and worst speed.

*

COMPRESSION_LEVEL_FASTEST

This is a synonym for level 1.

*

COMPRESSION_LEVEL_BEST_COMPRESSION

This is a synonym for level 9.

*

COMPRESSION_LEVEL_DEFAULT

This gives a good compromise between speed and compression, and is currently equivalent to 6 (this is in the zlib code). This is the level that will be used if not specified.

Archive::Zip Methods

Constructor

new( [$fileName] )

new( { filename => $fileName } )

Make a new, empty zip archive.

    my $zip = Archive::Zip->new();

If an additional argument is passed, new() will call read() to read the contents of an archive:

    my $zip = Archive::Zip->new( 'xyz.zip' );

If a filename argument is passed and the read fails for any reason, new will return undef. For this reason, it may be better to call read separately.

Zip Archive Utility Methods

    $zip = Archive::Zip->new();
    $crc = Archive::Zip::computeCRC32( 'ghijkl' );    # OK
    $crc = $zip->computeCRC32( 'ghijkl' );            # also OK
    $crc = Archive::Zip->computeCRC32( 'ghijkl' );    # NOT OK

Archive::Zip::computeCRC32( $string [, $crc] )

Archive::Zip::computeCRC32( { string => $string [, checksum => $crc ] } )

This is a utility function that uses the Compress::Raw::Zlib

CRC

routine to compute a

CRC-32.

You can get the

CRC

of a string:

    $crc = Archive::Zip::computeCRC32( $string );

Or you can compute the running

CRC:

    $crc = 0;
    $crc = Archive::Zip::computeCRC32( 'abcdef', $crc );
    $crc = Archive::Zip::computeCRC32( 'ghijkl', $crc );

Archive::Zip::setChunkSize( $number )

Archive::Zip::setChunkSize( { chunkSize => $number } )

Report or change chunk size used for reading and writing. This can make big differences in dealing with large files. Currently, this defaults to 32K. This also changes the chunk size used for Compress::Raw::Zlib. You must call setChunkSize() before reading or writing. This is not exportable, so you must call it like:

    Archive::Zip::setChunkSize( 4096 );

or as a method on a zip (though this is a global setting). Returns old chunk size.

Archive::Zip::chunkSize()

Returns the current chunk size:

    my $chunkSize = Archive::Zip::chunkSize();

Archive::Zip::setErrorHandler( \&subroutine )

Archive::Zip::setErrorHandler( { subroutine => \&subroutine } )

Change the subroutine called with error strings. This defaults to \&Carp::carp, but you may want to change it to get the error strings. This is not exportable, so you must call it like:

    Archive::Zip::setErrorHandler( \&myErrorHandler );

If myErrorHandler is undef, resets handler to default. Returns old error handler. Note that if you call Carp::carp or a similar routine or if you're chaining to the default error handler from your error handler, you may want to increment the number of caller levels that are skipped (do not just set it to a number):

    $Carp::CarpLevel++;

Archive::Zip::tempFile( [ $tmpdir ] )

Archive::Zip::tempFile( { tempDir => $tmpdir } )

Create a uniquely named temp file. It will be returned open for read/write. If $tmpdir is given, it is used as the name of a directory to create the file in. If not given, creates the file using "File::Spec::tmpdir()". Generally, you can override this choice using the

    $ENV{TMPDIR}

environment variable. But see the File::Spec documentation for your system. Note that on many systems, if you're running in taint mode, then you must make sure that $ENV{TMPDIR} is untainted for it to be used. Will

NOT

create $tmpdir if it does not exist (this is a change from prior versions!). Returns file handle and name:

    my ($fh, $name) = Archive::Zip::tempFile();
    my ($fh, $name) = Archive::Zip::tempFile('myTempDir');
    my $fh = Archive::Zip::tempFile();  # if you don't need the name

Zip Archive Accessors

members()

Return a copy of the members array

    my @members = $zip->members();

numberOfMembers()

Return the number of members I have

memberNames()

Return a list of the (internal) file names of the zip members

memberNamed( $string )

memberNamed( { zipName => $string } )

Return ref to member whose filename equals given filename or undef. $string must be in Zip (Unix) filename format.

membersMatching( $regex )

membersMatching( { regex => $regex } )

Return array of members whose filenames match given regular expression in list context. Returns number of matching members in scalar context.

    my @textFileMembers = $zip->membersMatching( '.*\.txt' );
    # or
    my $numberOfTextFiles = $zip->membersMatching( '.*\.txt' );

diskNumber()

Return the disk that I start on. Not used for writing zips, but might be interesting if you read a zip in. This should be 0, as Archive::Zip does not handle multi-volume archives.

diskNumberWithStartOfCentralDirectory()

Return the disk number that holds the beginning of the central directory. Not used for writing zips, but might be interesting if you read a zip in. This should be 0, as Archive::Zip does not handle multi-volume archives.

numberOfCentralDirectoriesOnThisDisk()

Return the number of

CD

structures in the zipfile last read in. Not used for writing zips, but might be interesting if you read a zip in.

numberOfCentralDirectories()

Return the number of

CD

structures in the zipfile last read in. Not used for writing zips, but might be interesting if you read a zip in.

centralDirectorySize()

Returns central directory size, as read from an external zip file. Not used for writing zips, but might be interesting if you read a zip in.

centralDirectoryOffsetWRTStartingDiskNumber()

Returns the offset into the zip file where the

CD

begins. Not used for writing zips, but might be interesting if you read a zip in.

zipfileComment( [ $string ] )

zipfileComment( [ { comment => $string } ] )

Get or set the zipfile comment. Returns the old comment.

    print $zip->zipfileComment();
    $zip->zipfileComment( 'New Comment' );

eocdOffset()

Returns the (unexpected) number of bytes between where the

EOCD

was found and where it expected to be. This is normally 0, but would be positive if something (a virus, perhaps) had added bytes somewhere before the

EOCD.

Not used for writing zips, but might be interesting if you read a zip in. Here is an example of how you can diagnose this:

  my $zip = Archive::Zip->new('somefile.zip');
  if ($zip->eocdOffset())
  {
    warn "A virus has added ", $zip->eocdOffset, " bytes of garbage\n";
  }

The "eocdOffset()" is used to adjust the starting position of member headers, if necessary.

fileName()

Returns the name of the file last read from. If nothing has been read yet, returns an empty string; if read from a file handle, returns the handle in string form.

Zip Archive Member Operations

removeMember( $memberOrName )

removeMember( { memberOrZipName => $memberOrName } )

Remove and return the given member, or match its name and remove it. Returns undef if member or name does not exist in this Zip. No-op if member does not belong to this zip.

replaceMember( $memberOrName, $newMember )

replaceMember( { memberOrZipName => $memberOrName, newMember => $newMember } )

Remove and return the given member, or match its name and remove it. Replace with new member. Returns undef if member or name does not exist in this Zip, or if $newMember is undefined.

It is an (undiagnosed) error to provide a $newMember that is a member of the zip being modified.

    my $member1 = $zip->removeMember( 'xyz' );
    my $member2 = $zip->replaceMember( 'abc', $member1 );
    # now, $member2 (named 'abc') is not in $zip,
    # and $member1 (named 'xyz') is, having taken $member2's place.

extractMember( $memberOrName [, $extractedName ] )

extractMember( { memberOrZipName => $memberOrName [, name => $extractedName ] } )

Extract the given member, or match its name and extract it. Returns undef if member does not exist in this Zip. If optional second arg is given, use it as the name of the extracted member. Otherwise, the internal filename of the member is used as the name of the extracted file or directory. If you pass $extractedName, it should be in the local file system's format. All necessary directories will be created. Returns "AZ_OK" on success.

extractMemberWithoutPaths( $memberOrName [, $extractedName ] )

extractMemberWithoutPaths( { memberOrZipName => $memberOrName [, name => $extractedName ] } )

Extract the given member, or match its name and extract it. Does not use path information (extracts into the current directory). Returns undef if member does not exist in this Zip. If optional second arg is given, use it as the name of the extracted member (its paths will be deleted too). Otherwise, the internal filename of the member (minus paths) is used as the name of the extracted file or directory. Returns "AZ_OK" on success.

addMember( $member )

addMember( { member => $member } )

Append a member (possibly from another zip file) to the zip file. Returns the new member. Generally, you will use addFile(), addDirectory(), addFileOrDirectory(), addString(), or read() to add members.

    # Move member named 'abc' to end of zip:
    my $member = $zip->removeMember( 'abc' );
    $zip->addMember( $member );

updateMember( $memberOrName, $fileName )

updateMember( { memberOrZipName => $memberOrName, name => $fileName } )

Update a single member from the file or directory named $fileName. Returns the (possibly added or updated) member, if any; "undef" on errors. The comparison is based on "lastModTime()" and (in the case of a non-directory) the size of the file.

addFile( $fileName [, $newName, $compressionLevel ] )

addFile( { filename => $fileName [, zipName => $newName, compressionLevel => $compressionLevel } ] )

Append a member whose data comes from an external file, returning the member or undef. The member will have its file name set to the name of the external file, and its desiredCompressionMethod set to

COMPRESSION_DEFLATED.

The file attributes and last modification time will be set from the file. If the name given does not represent a readable plain file or symbolic link, undef will be returned. $fileName must be in the format required for the local file system. The optional $newName argument sets the internal file name to something different than the given $fileName. $newName, if given, must be in Zip name format (i.e. Unix). The text mode bit will be set if the contents appears to be text (as returned by the "-T" perl operator).

NOTE

that you should not (generally) use absolute path names in zip member names, as this will cause problems with some zip tools as well as introduce a security hole and make the zip harder to use.

addDirectory( $directoryName [, $fileName ] )

addDirectory( { directoryName => $directoryName [, zipName => $fileName ] } )

Append a member created from the given directory name. The directory name does not have to name an existing directory. If the named directory exists, the file modification time and permissions are set from the existing directory, otherwise they are set to now and permissive default permissions. $directoryName must be in local file system format. The optional second argument sets the name of the archive member (which defaults to $directoryName). If given, it must be in Zip (Unix) format. Returns the new member.

addFileOrDirectory( $name [, $newName, $compressionLevel ] )

addFileOrDirectory( { name => $name [, zipName => $newName, compressionLevel => $compressionLevel ] } )

Append a member from the file or directory named $name. If $newName is given, use it for the name of the new member. Will add or remove trailing slashes from $newName as needed. $name must be in local file system format. The optional second argument sets the name of the archive member (which defaults to $name). If given, it must be in Zip (Unix) format.

addString( $stringOrStringRef, $name, [$compressionLevel] )

addString( { string => $stringOrStringRef [, zipName => $name, compressionLevel => $compressionLevel ] } )

Append a member created from the given string or string reference. The name is given by the second argument. Returns the new member. The last modification time will be set to now, and the file attributes will be set to permissive defaults.

    my $member = $zip->addString( 'This is a test', 'test.txt' );

contents( $memberOrMemberName [, $newContents ] )

contents( { memberOrZipName => $memberOrMemberName [, contents => $newContents ] } )

Returns the uncompressed data for a particular member, or undef.

    print "xyz.txt contains " . $zip->contents( 'xyz.txt' );

Also can change the contents of a member:

    $zip->contents( 'xyz.txt', 'This is the new contents' );

If called expecting an array as the return value, it will include the status as the second value in the array.

    ($content, $status) = $zip->contents( 'xyz.txt');

Zip Archive I/O operations

writeToFileNamed( $fileName )

writeToFileNamed( { fileName => $fileName } )

Write a zip archive to named file. Returns "AZ_OK" on success.

    my $status = $zip->writeToFileNamed( 'xx.zip' );
    die "error somewhere" if $status != AZ_OK;

Note that if you use the same name as an existing zip file that you read in, you will clobber ZipFileMembers. So instead, write to a different file name, then delete the original. If you use the "overwrite()" or "overwriteAs()" methods, you can re-write the original zip in this way. $fileName should be a valid file name on your system.

writeToFileHandle( $fileHandle [, $seekable] )

Write a zip archive to a file handle. Return

AZ_OK

on success. The optional second arg tells whether or not to try to seek backwards to re-write headers. If not provided, it is set if the Perl "-f" test returns true. This could fail on some operating systems, though.

    my $fh = IO::File->new( 'someFile.zip', 'w' );
    unless ( $zip->writeToFileHandle( $fh ) == AZ_OK ) {
        # error handling
    }

If you pass a file handle that is not seekable (like if you're writing to a pipe or a socket), pass a false second argument:

    my $fh = IO::File->new( '| cat > somefile.zip', 'w' );
    $zip->writeToFileHandle( $fh, 0 );   # fh is not seekable

If this method fails during the write of a member, that member and all following it will return false from "wasWritten()". See writeCentralDirectory() for a way to deal with this. If you want, you can write data to the file handle before passing it to writeToFileHandle(); this could be used (for instance) for making self-extracting archives. However, this only works reliably when writing to a real file (as opposed to

STDOUT

or some other possible non-file).

See examples/selfex.pl for how to write a self-extracting archive.

writeCentralDirectory( $fileHandle [, $offset ] )

writeCentralDirectory( { fileHandle => $fileHandle [, offset => $offset ] } )

Writes the central directory structure to the given file handle.

Returns

AZ_OK

on success. If given an $offset, will seek to that point before writing. This can be used for recovery in cases where writeToFileHandle or writeToFileNamed returns an

IO

error because of running out of space on the destination file.

You can truncate the zip by seeking backwards and then writing the directory:

    my $fh = IO::File->new( 'someFile.zip', 'w' );
        my $retval = $zip->writeToFileHandle( $fh );
    if ( $retval == AZ_IO_ERROR ) {
        my @unwritten = grep { not $_->wasWritten() } $zip->members();
        if (@unwritten) {
            $zip->removeMember( $member ) foreach my $member ( @unwritten );
            $zip->writeCentralDirectory( $fh,
            $unwritten[0]->writeLocalHeaderRelativeOffset());
        }
    }

overwriteAs( $newName )

overwriteAs( { filename => $newName } )

Write the zip to the specified file, as safely as possible. This is done by first writing to a temp file, then renaming the original if it exists, then renaming the temp file, then deleting the renamed original if it exists. Returns

AZ_OK

if successful.

overwrite()

Write back to the original zip file. See overwriteAs() above. If the zip was not ever read from a file, this generates an error.

read( $fileName )

read( { filename => $fileName } )

Read zipfile headers from a zip file, appending new members. Returns "AZ_OK" or error code.

    my $zipFile = Archive::Zip->new();
    my $status = $zipFile->read( '/some/FileName.zip' );

readFromFileHandle( $fileHandle, $filename )

readFromFileHandle( { fileHandle => $fileHandle, filename => $filename } )

Read zipfile headers from an already-opened file handle, appending new members. Does not close the file handle. Returns "AZ_OK" or error code. Note that this requires a seekable file handle; reading from a stream is not yet supported, but using in-memory data is.

    my $fh = IO::File->new( '/some/FileName.zip', 'r' );
    my $zip1 = Archive::Zip->new();
    my $status = $zip1->readFromFileHandle( $fh );
    my $zip2 = Archive::Zip->new();
    $status = $zip2->readFromFileHandle( $fh );

Read zip using in-memory data (recursable):

    open my $fh, "<", "archive.zip" or die $!;
    my $zip_data = do { local $.; <$fh> };
    my $zip = Archive::Zip->new;
    open my $dh, "+<", \$zip_data;
    $zip->readFromFileHandle ($dh);

Zip Archive Tree operations

  use Archive::Zip;
  my $zip = Archive::Zip->new();

  # add all readable files and directories below . as xyz/*
  $zip->addTree( '.', 'xyz' );

  # add all readable plain files below /abc as def/*
  $zip->addTree( '/abc', 'def', sub { -f && -r } );

  # add all .c files below /tmp as stuff/*
  $zip->addTreeMatching( '/tmp', 'stuff', '\.c$' );

  # add all .o files below /tmp as stuff/* if they aren't writable
  $zip->addTreeMatching( '/tmp', 'stuff', '\.o$', sub { ! -w } );

  # add all .so files below /tmp that are smaller than 200 bytes as stuff/*
  $zip->addTreeMatching( '/tmp', 'stuff', '\.o$', sub { -s < 200 } );

  # and write them into a file
  $zip->writeToFileNamed('xxx.zip');

  # now extract the same files into /tmpx
  $zip->extractTree( 'stuff', '/tmpx' );

$zip->addTree( $root, $dest [, $pred, $compressionLevel ] ) --- Add tree of files to a zip

$zip->addTree( { root => $root, zipName => $dest [, select => $pred, compressionLevel => $compressionLevel ] )

$root is the root of the tree of files and directories to be added. It is a valid directory name on your system. $dest is the name for the root in the zip file (undef or blank means to use relative pathnames). It is a valid

ZIP

directory name (that is, it uses forward slashes (/) for separating directory components). $pred is an optional subroutine reference to select files: it is passed the name of the prospective file or directory using $_, and if it returns true, the file or directory will be included. The default is to add all readable files and directories. For instance, using

  my $pred = sub { /\.txt/ };
  $zip->addTree( '.', '', $pred );

will add all the .txt files in and below the current directory, using relative names, and making the names identical in the zipfile:

  original name           zip member name
  ./xyz                   xyz
  ./a/                    a/
  ./a/b                   a/b

To translate absolute to relative pathnames, just pass them in: $zip->addTree( '/c/d', 'a' );

  original name           zip member name
  /c/d/xyz                a/xyz
  /c/d/a/                 a/a/
  /c/d/a/b                a/a/b

Returns

AZ_OK

on success. Note that this will not follow symbolic links to directories. Note also that this does not check for the validity of filenames.

Note that you generally don't want to make zip archive member names absolute.

$zip->addTreeMatching( $root, $dest, $pattern [, $pred, $compressionLevel ] )

$zip->addTreeMatching( { root => $root, zipName => $dest, pattern => $pattern [, select => $pred, compressionLevel => $compressionLevel ] } )

$root is the root of the tree of files and directories to be added $dest is the name for the root in the zip file (undef means to use relative pathnames) $pattern is a (non-anchored) regular expression for filenames to match $pred is an optional subroutine reference to select files: it is passed the name of the prospective file or directory in $_, and if it returns true, the file or directory will be included. The default is to add all readable files and directories. To add all files in and below the current directory whose names end in ".pl", and make them extract into a subdirectory named "xyz", do this:

  $zip->addTreeMatching( '.', 'xyz', '\.pl$' )

To add all writable files in and below the directory named "/abc" whose names end in ".pl", and make them extract into a subdirectory named "xyz", do this:

  $zip->addTreeMatching( '/abc', 'xyz', '\.pl$', sub { -w } )

Returns

AZ_OK

on success. Note that this will not follow symbolic links to directories.

$zip->updateTree( $root [, $dest , $pred , $mirror, $compressionLevel ] );

$zip->updateTree( { root => $root [, zipName => $dest, select => $pred, mirror => $mirror, compressionLevel => $compressionLevel ] } );

Update a zip file from a directory tree.

"updateTree()" takes the same arguments as "addTree()", but first checks to see whether the file or directory already exists in the zip file, and whether it has been changed.

If the fourth argument $mirror is true, then delete all my members if corresponding files were not found.

Returns an error code or

AZ_OK

if all is well.

$zip->extractTree( [ $root, $dest, $volume } ] )

$zip->extractTree( [ { root => $root, zipName => $dest, volume => $volume } ] )

If you don't give any arguments at all, will extract all the files in the zip with their original names.

If you supply one argument for $root, "extractTree" will extract all the members whose names start with $root into the current directory, stripping off $root first. $root is in Zip (Unix) format. For instance,

  $zip->extractTree( 'a' );

when applied to a zip containing the files: a/x a/b/c ax/d/e d/e will extract:

a/x as ./x

a/b/c as ./b/c

If you give two arguments, "extractTree" extracts all the members whose names start with $root. It will translate $root into $dest to construct the destination file name. $root and $dest are in Zip (Unix) format. For instance,

   $zip->extractTree( 'a', 'd/e' );

when applied to a zip containing the files: a/x a/b/c ax/d/e d/e will extract:

a/x to d/e/x

a/b/c to d/e/b/c and ignore ax/d/e and d/e

If you give three arguments, "extractTree" extracts all the members whose names start with $root. It will translate $root into $dest to construct the destination file name, and then it will convert to local file system format, using $volume as the name of the destination volume.

$root and $dest are in Zip (Unix) format.

$volume is in local file system format.

For instance, under Windows,

   $zip->extractTree( 'a', 'd/e', 'f:' );

when applied to a zip containing the files: a/x a/b/c ax/d/e d/e will extract:

a/x to f:d/e/x

a/b/c to f:d/e/b/c and ignore ax/d/e and d/e

If you want absolute paths (the prior example used paths relative to the current directory on the destination volume, you can specify these in $dest:

   $zip->extractTree( 'a', '/d/e', 'f:' );

when applied to a zip containing the files: a/x a/b/c ax/d/e d/e will extract:

a/x to f:\d\e\x

a/b/c to f:\d\e\b\c and ignore ax/d/e and d/e

Returns an error code or

AZ_OK

if everything worked

OK.

Archive::Zip Global Variables

$Archive::Zip::UNICODE

This variable governs how Unicode file and directory names are added to or extracted from an archive. If set, file and directory names are considered to be

UTF-8

encoded. This is

EXPERIMENTAL AND BUGGY

(there are some edge cases on Win32). Please report problems.

    {
        local $Archive::Zip::UNICODE = 1;
        $zip->addFile('Déjà vu.txt');
    }

MEMBER OPERATIONS

Member Class Methods

Archive::Zip::Member->newFromString( $stringOrStringRef [, $fileName ] )

Archive::Zip::Member->newFromString( { string => $stringOrStringRef [, zipName => $fileName ] )

Construct a new member from the given string. Returns undef on error.

    my $member = Archive::Zip::Member->newFromString( 'This is a test',

newFromFile( $fileName [, $zipName ] )

newFromFile( { filename => $fileName [, zipName => $zipName ] } )

Construct a new member from the given file. Returns undef on error.

    my $member = Archive::Zip::Member->newFromFile( 'xyz.txt' );

newDirectoryNamed( $directoryName [, $zipname ] )

newDirectoryNamed( { directoryName => $directoryName [, zipName => $zipname ] } )

Construct a new member from the given directory. $directoryName must be a valid name on your file system; it does not have to exist.

If given, $zipname will be the name of the zip member; it must be a valid Zip (Unix) name. If not given, it will be converted from $directoryName.

Returns undef on error.

    my $member = Archive::Zip::Member->newDirectoryNamed( 'CVS/' );

Member Simple accessors

versionMadeBy()

Gets the field from the member header.

fileAttributeFormat( [ $format ] )

fileAttributeFormat( [ { format => $format ] } )

Gets or sets the field from the member header. These are "FA_*" values.

versionNeededToExtract()

Gets the field from the member header.

bitFlag()

Gets the general purpose bit field from the member header. This is where the "GPBF_*" bits live.

compressionMethod()

Returns the member compression method. This is the method that is currently being used to compress the member data. This will be

COMPRESSION_STORED

for added string or file members, or any of the "COMPRESSION_*" values for members from a zip file. However, this module can only handle members whose data is in

COMPRESSION_STORED

or

COMPRESSION_DEFLATED

format.

desiredCompressionMethod( [ $method ] )

desiredCompressionMethod( [ { compressionMethod => $method } ] )

Get or set the member's "desiredCompressionMethod". This is the compression method that will be used when the member is written. Returns prior desiredCompressionMethod. Only

COMPRESSION_DEFLATED

or

COMPRESSION_STORED

are valid arguments. Changing to

COMPRESSION_STORED

will change the member desiredCompressionLevel to 0; changing to

COMPRESSION_DEFLATED

will change the member desiredCompressionLevel to

COMPRESSION_LEVEL_DEFAULT.

desiredCompressionLevel( [ $level ] )

desiredCompressionLevel( [ { compressionLevel => $level } ] )

Get or set the member's desiredCompressionLevel This is the method that will be used to write. Returns prior desiredCompressionLevel. Valid arguments are 0 through 9,

COMPRESSION_LEVEL_NONE, COMPRESSION_LEVEL_DEFAULT, COMPRESSION_LEVEL_BEST_COMPRESSION,

and

COMPRESSION_LEVEL_FASTEST. 0

or

COMPRESSION_LEVEL_NONE

will change the desiredCompressionMethod to

COMPRESSION_STORED.

All other arguments will change the desiredCompressionMethod to

COMPRESSION_DEFLATED.

externalFileName()

Return the member's external file name, if any, or undef.

fileName()

Get or set the member's internal filename. Returns the (possibly new) filename. Names will have backslashes converted to forward slashes, and will have multiple consecutive slashes converted to single ones.

lastModFileDateTime()

Return the member's last modification date/time stamp in MS-DOS format.

lastModTime()

Return the member's last modification date/time stamp, converted to unix localtime format.

    print "Mod Time: " . scalar( localtime( $member->lastModTime() ) );

setLastModFileDateTimeFromUnix()

Set the member's lastModFileDateTime from the given unix time.

    $member->setLastModFileDateTimeFromUnix( time() );

internalFileAttributes()

Return the internal file attributes field from the zip header. This is only set for members read from a zip file.

externalFileAttributes()

Return member attributes as read from the

ZIP

file. Note that these are

NOT UNIX

!

unixFileAttributes( [ $newAttributes ] )

unixFileAttributes( [ { attributes => $newAttributes } ] )

Get or set the member's file attributes using

UNIX

file attributes. Returns old attributes.

    my $oldAttribs = $member->unixFileAttributes( 0666 );

Note that the return value has more than just the file permissions, so you will have to mask off the lowest bits for comparisons.

localExtraField( [ $newField ] )

localExtraField( [ { field => $newField } ] )

Gets or sets the extra field that was read from the local header. This is not set for a member from a zip file until after the member has been written out. The extra field must be in the proper format.

cdExtraField( [ $newField ] )

cdExtraField( [ { field => $newField } ] )

Gets or sets the extra field that was read from the central directory header. The extra field must be in the proper format.

extraFields()

Return both local and

CD

extra fields, concatenated.

fileComment( [ $newComment ] )

fileComment( [ { comment => $newComment } ] )

Get or set the member's file comment.

hasDataDescriptor()

Get or set the data descriptor flag. If this is set, the local header will not necessarily have the correct data sizes. Instead, a small structure will be stored at the end of the member data with these values. This should be transparent in normal operation.

crc32()

Return the

CRC-32

value for this member. This will not be set for members that were constructed from strings or external files until after the member has been written.

crc32String()

Return the

CRC-32

value for this member as an 8 character printable hex string. This will not be set for members that were constructed from strings or external files until after the member has been written.

compressedSize()

Return the compressed size for this member. This will not be set for members that were constructed from strings or external files until after the member has been written.

uncompressedSize()

Return the uncompressed size for this member.

password( [ $password ] )

Returns the password for this member to be used on decryption. If $password is given, it will set the password for the decryption.

isEncrypted()

Return true if this member is encrypted. The Archive::Zip module does not currently support creation of encrypted members. Decryption works more or less like this:

  my $zip = Archive::Zip->new;
  $zip->read ("encrypted.zip");
  for my $m (map { $zip->memberNamed ($_) } $zip->memberNames) {
      $m->password ("secret");
      $m->contents;  # is "" when password was wrong

That shows that the password has to be set per member, and not per archive. This might change in the future.

isTextFile( [ $flag ] )

isTextFile( [ { flag => $flag } ] )

Returns true if I am a text file. Also can set the status if given an argument (then returns old state). Note that this module does not currently do anything with this flag upon extraction or storage. That is, bytes are stored in native format whether or not they came from a text file.

isBinaryFile()

Returns true if I am a binary file. Also can set the status if given an argument (then returns old state). Note that this module does not currently do anything with this flag upon extraction or storage. That is, bytes are stored in native format whether or not they came from a text file.

extractToFileNamed( $fileName )

extractToFileNamed( { name => $fileName } )

Extract me to a file with the given name. The file will be created with default modes. Directories will be created as needed. The $fileName argument should be a valid file name on your file system. Returns

AZ_OK

on success.

isDirectory()

Returns true if I am a directory.

writeLocalHeaderRelativeOffset()

Returns the file offset in bytes the last time I was written.

wasWritten()

Returns true if I was successfully written. Reset at the beginning of a write attempt.

Low-level member data reading

    my ( $member, $status, $bufferRef );
    $member = $zip->memberNamed( 'xyz.txt' );
    $member->desiredCompressionMethod( COMPRESSION_STORED );
    $status = $member->rewindData();
    die "error $status" unless $status == AZ_OK;
    while ( ! $member->readIsDone() )
    {
    ( $bufferRef, $status ) = $member->readChunk();
    die "error $status"
                if $status != AZ_OK && $status != AZ_STREAM_END;
    # do something with $bufferRef:
    print $$bufferRef;
    }
    $member->endRead();

readChunk( [ $chunkSize ] )

readChunk( [ { chunkSize => $chunkSize } ] )

This reads the next chunk of given size from the member's data stream and compresses or uncompresses it as necessary, returning a reference to the bytes read and a status. If size argument is not given, defaults to global set by Archive::Zip::setChunkSize. Status is

AZ_OK

on success until the last chunk, where it returns

AZ_STREAM_END.

Returns "( \$bytes, $status)".

    my ( $outRef, $status ) = $self->readChunk();
    print $$outRef if $status != AZ_OK && $status != AZ_STREAM_END;

rewindData()

Rewind data and set up for reading data streams or writing zip files. Can take options for "inflateInit()" or "deflateInit()", but this is not likely to be necessary. Subclass overrides should call this method. Returns "AZ_OK" on success.

endRead()

Reset the read variables and free the inflater or deflater. Must be called to close files, etc. Returns

AZ_OK

on success.

readIsDone()

Return true if the read has run out of data or encountered an error.

contents()

Return the entire uncompressed member data or undef in scalar context. When called in array context, returns "( $string, $status )"; status will be

AZ_OK

on success:

    my $string = $member->contents();
    # or
    my ( $string, $status ) = $member->contents();
    die "error $status" unless $status == AZ_OK;

Can also be used to set the contents of a member (this may change the class of the member):

    $member->contents( "this is my new contents" );

extractToFileHandle( $fh )

extractToFileHandle( { fileHandle => $fh } )

Extract (and uncompress, if necessary) the member's contents to the given file handle. Return

AZ_OK

on success.

Archive::Zip::FileMember methods

externalFileName()

Return the member's external filename.

fh()

Return the member's read file handle. Automatically opens file if necessary.

Archive::Zip::ZipFileMember methods

diskNumberStart()

Returns the disk number that the member's local header resides in. Should be 0.

localHeaderRelativeOffset()

Returns the offset into the zip file where the member's local header is.

dataOffset()

Returns the offset from the beginning of the zip file to the member's data.

REQUIRED MODULES

Carp

Compress::Raw::Zlib

Cwd

File::Basename

File::Copy

File::Find

File::Path

File::Spec

IO::File

IO::Seekable

Time::Local

BUGS AND CAVEATS

When not to use Archive::Zip

Try to avoid IO::Scalar

Unfortunately, as of 1.11 this module no longer works with IO::Scalar as it incorrectly implements seeking.

Anybody using IO::Scalar should consider porting to IO::String, which is smaller, lighter, and is implemented to be perfectly compatible with regular seekable filehandles.

Support for IO::Scalar most likely will not be restored in the future, as IO::Scalar itself cannot change the way it is implemented due to back-compatibility issues.

Wrong password for encrypted members

TO DO

* extra field hooks (see notes.txt)

* check for duplicates on addition/renaming?

* Text file extraction (line end translation)

* Reading zip files from non-seekable inputs
  (Perhaps by proxying through IO::String?)

* separate unused constants into separate module

* cookbook style docs

* Handle tainted paths correctly

* Work on better compatibility with other

* Support encryption

* More user-friendly decryption

SUPPORT

<rt.cpan.org/NoAuth/ReportBug.html?Queue=Archive-Zip>

For other issues contact the maintainer

AUTHOR

Previously maintained by Adam Kennedy <adamk@cpan.org>

Previously maintained by Steve Peters <steve@fisharerojo.org>.

File attributes code by Maurice Aubrey <maurice@lovelyfilth.com>.

Originally by Ned Konz <nedkonz@cpan.org>.

COPYRIGHT

Some parts copyright 2005 Steve Peters.

Original work copyright 2000 - 2004 Ned Konz.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

Compress::Raw::Zlib, Archive::Tar, Archive::Extract