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tarfile.cpython-37.pyc
B ����^ e� @ sr d Z dZdZdZddlmZ ddlZddlZddl Z ddl Z ddl Z ddl Z ddl Z ddlZddlZy ddlZW n ek r� dZY nX y ddlZW n ek r� dZY nX eefZyeef7 ZW n ek r� Y nX ddd d d d d ddddddddgZdZdZed ZdZ dZ dZ dZ d Z d Z!dZ"d Z#d Z$d Z%d!Z&d"Z'd#Z(d$Z)d%Z*d&Z+d'Z,d(Z-d)Z.d*Z/dZ0d+Z1d,Z2e1Z3e!e"e#e$e'e(e)e%e&e*e+e,f Z4e!e"e)e,fZ5e*e+e,fZ6d-Z7d.d/d0d1hZ8e9e9e9e:e:e:d2�Z;ej<d3k�r�d4Z=ne�>� Z=d5d6� Z?d7d8� Z@d9d:� ZAd;e3fd<d=�ZBd>d?� ZCdedfd@dA�ZDdBdC� ZEdDdE� ZFG dFd � d eG�ZHG dGd� deH�ZIG dHd � d eH�ZJG dId � d eH�ZKG dJd � d eH�ZLG dKd� deH�ZMG dLdM� dMeM�ZNG dNdO� dOeM�ZOG dPdQ� dQeM�ZPG dRdS� dSeM�ZQG dTdU� dUeM�ZRG dVdW� dW�ZSG dXdY� dY�ZTG dZd[� d[eU�ZVG d\d]� d]eU�ZWG d^d_� d_e jX�ZYG d`d� deU�ZZG dad� deU�Z[dbd � Z\e[jZdcdd� Z]e^dek�rne]� dS )fz,Read from and write to tar format archives. z0.9.0u" Lars Gustäbel (lars@gustaebel.de)u4 Gustavo Niemeyer, Niels Gustäbel, Richard Townsend.� )�openN�TarFile�TarInfo� is_tarfile�TarError� ReadError�CompressionError� StreamError� ExtractError� HeaderError�ENCODING� USTAR_FORMAT� GNU_FORMAT� PAX_FORMAT�DEFAULT_FORMATr � i � s ustar s ustar 00�d � � 0� 1� 2� 3� 4� 5� 6� 7� L� K� S� x� g� X� � )�path�linkpath�size�mtime�uid�gid�uname�gnamer% r& r+ r, )ZatimeZctimer( r) r* r' �ntzutf-8c C s( | � ||�} | d|� |t| � t S )z8Convert a string to a null-terminated bytes object. N)�encode�len�NUL)�s�length�encoding�errors� r5 �,/opt/alt/python37/lib64/python3.7/tarfile.py�stn� s r7 c C s* | � d�}|dkr | d|� } | �||�S )z8Convert a null-terminated bytes object to a string. r ���N)�find�decode)r1 r3 r4 �pr5 r5 r6 �nts� s r< c C s� | d dkrfd}x0t t| �d �D ] }|dK }|| |d 7 }q"W | d dkr�dt| �d | }n@y"t| dd�} t| �� p�d d�}W n tk r� td ��Y nX |S ) z/Convert a number field to a python number. r )� � r# � r> � �ascii�strict�0zinvalid header)�ranger/ r< �int�strip� ValueError�InvalidHeaderError)r1 �n�ir5 r5 r6 �nti� s rK r? c C s� t | �} d| kr$d|d k rDn n td|d | f d�t }n�|tkr�d|d | krrd|d k r�n nZ| dkr�tdg�}ntdg�}d| | } x6t|d �D ] }|�d| d@ � | dL } q�W ntd ��|S ) z/Convert a python number to a number field. r r? r# z%0*orA r@ r= r> zoverflow in number field)rE �bytesr0 r � bytearrayrD �insertrG )rI �digits�formatr1 rJ r5 r5 r6 �itn� s 2 rQ c C s0 dt t�d| �� }dt t�d| �� }||fS )a� Calculate the checksum for a member's header by summing up all characters except for the chksum field which is treated as if it was filled with spaces. According to the GNU tar sources, some tars (Sun and NeXT) calculate chksum with signed char, which will be different if there are chars in the buffer with the high bit set. So we calculate two checksums, unsigned and signed. r@ Z 148B8x356BZ 148b8x356b)�sum�structZ unpack_from)�bufZunsigned_chksumZ signed_chksumr5 r5 r6 � calc_chksums� s rU c C s� |pd}|dkrdS |dkr.t �| ||� dS t||�\}}x8t|�D ],}| �|�}t|�|k rh|d��|�|� qFW |dkr�| �|�}t|�|k r�|d��|�|� dS )zjCopy length bytes from fileobj src to fileobj dst. If length is None, copy the entire content. i @ r Nzunexpected end of data)�shutil� copyfileobj�divmodrD �readr/ �write) �src�dstr2 � exception�bufsize�blocks� remainder�brT r5 r5 r6 rW � s$ rW c C s ddl }|�dtd� t�| �S )z/Deprecated in this location; use stat.filemode.r Nz$deprecated in favor of stat.filemoder$ )�warnings�warn�DeprecationWarning�stat�filemode)�moderb r5 r5 r6 rf s rf c C s8 t tjdd �}|d k r(| �|d��|�} t| dd� d S )Nr3 �backslashreplace� )�end)�getattr�sys�stdoutr. r: �print)r1 r3 r5 r5 r6 � _safe_print s ro c @ s e Zd ZdZdS )r zBase exception.N)�__name__� __module__� __qualname__�__doc__r5 r5 r5 r6 r s c @ s e Zd ZdZdS )r z%General exception for extract errors.N)rp rq rr rs r5 r5 r5 r6 r s c @ s e Zd ZdZdS )r z&Exception for unreadable tar archives.N)rp rq rr rs r5 r5 r5 r6 r s c @ s e Zd ZdZdS )r z.Exception for unavailable compression methods.N)rp rq rr rs r5 r5 r5 r6 r s c @ s e Zd ZdZdS )r z=Exception for unsupported operations on stream-like TarFiles.N)rp rq rr rs r5 r5 r5 r6 r s c @ s e Zd ZdZdS )r z!Base exception for header errors.N)rp rq rr rs r5 r5 r5 r6 r s c @ s e Zd ZdZdS )�EmptyHeaderErrorz Exception for empty headers.N)rp rq rr rs r5 r5 r5 r6 rt # s rt c @ s e Zd ZdZdS )�TruncatedHeaderErrorz Exception for truncated headers.N)rp rq rr rs r5 r5 r5 r6 ru & s ru c @ s e Zd ZdZdS )�EOFHeaderErrorz"Exception for end of file headers.N)rp rq rr rs r5 r5 r5 r6 rv ) s rv c @ s e Zd ZdZdS )rH z Exception for invalid headers.N)rp rq rr rs r5 r5 r5 r6 rH , s rH c @ s e Zd ZdZdS )�SubsequentHeaderErrorz3Exception for missing and invalid extended headers.N)rp rq rr rs r5 r5 r5 r6 rw / s rw c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) � _LowLevelFilez�Low-level file object. Supports reading and writing. It is used instead of a regular file object for streaming access. c C sF t jt jt jB t jB d�| }tt d�r2|t jO }t �||d�| _d S )N)�r�w�O_BINARYi� ) �os�O_RDONLY�O_WRONLY�O_CREAT�O_TRUNC�hasattrr{ r �fd)�self�namerg r5 r5 r6 �__init__< s z_LowLevelFile.__init__c C s t �| j� d S )N)r| �closer� )r� r5 r5 r6 r� E s z_LowLevelFile.closec C s t �| j|�S )N)r| rY r� )r� r' r5 r5 r6 rY H s z_LowLevelFile.readc C s t �| j|� d S )N)r| rZ r� )r� r1 r5 r5 r6 rZ K s z_LowLevelFile.writeN)rp rq rr rs r� r� rY rZ r5 r5 r5 r6 rx 6 s rx c @ st e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z d dd�Z d dd�Z dd� Zdd� ZdS ) �_Streama� Class that serves as an adapter between TarFile and a stream-like object. The stream-like object only needs to have a read() or write() method and is accessed blockwise. Use of gzip or bzip2 compression is possible. A stream-like object could be for example: sys.stdin, sys.stdout, a socket, a tape device etc. _Stream is intended to be used only internally. c C s� d| _ |dkr t||�}d| _ |dkr6t|�}|�� }|p<d| _|| _|| _|| _|| _d| _ d| _ d| _ �yL|dkr�y ddl }W n t k r� td ��Y nX || _ |�d�| _|d kr�| �� |j| _n| �� n�|d k�r:y ddl}W n t k �r td ��Y nX |d k�r.d| _|�� | _t| _n |�� | _n||d k�r�y ddl}W n t k �rn td��Y nX |d k�r�d| _|� � | _|j | _n |� � | _n|dk�r�td| ��W n& | j �s�| j� � d| _ � Y nX dS )z$Construct a _Stream object. TNF�*� � r �gzz zlib module is not availablery �bz2zbz2 module is not available�xzz lzma module is not available�tarzunknown compression type %r) � _extfileobjrx � _StreamProxy� getcomptyper� rg �comptype�fileobjr^ rT �pos�closed�zlib� ImportErrorr �crc32�crc� _init_read_gz�errorr] �_init_write_gzr� �dbufZBZ2Decompressor�cmp�OSErrorZ BZ2Compressor�lzmaZLZMADecompressor� LZMAErrorZLZMACompressorr� ) r� r� rg r� r� r^ r� r� r� r5 r5 r6 r� Y sl z_Stream.__init__c C s t | d�r| js| �� d S )Nr� )r� r� r� )r� r5 r5 r6 �__del__� s z_Stream.__del__c C s� | j �d| j j| j j | j jd�| _t�dtt � � ��}| � d| d � | j � d�rf| j dd� | _ | � | j � d d �t � dS ) z6Initialize for writing with gzip compression. � r z<Ls �s �z.gzN���z iso-8859-1�replace)r� Z compressobjZDEFLATED� MAX_WBITSZ DEF_MEM_LEVELr� rS �packrE �time�_Stream__writer� �endswithr. r0 )r� Z timestampr5 r5 r6 r� � s z_Stream._init_write_gzc C sR | j dkr | j�|| j�| _| jt|�7 _| j dkrD| j�|�}| �|� dS )z&Write string s to the stream. r� r� N) r� r� r� r� r� r/ r� �compressr� )r� r1 r5 r5 r6 rZ � s z _Stream.writec C sR | j |7 _ x>t| j �| jkrL| j�| j d| j� � | j | jd� | _ qW dS )z]Write string s to the stream if a whole new block is ready to be written. N)rT r/ r^ r� rZ )r� r1 r5 r5 r6 Z__write� s z_Stream.__writec C s� | j r dS d| _ z�| jdkr:| jdkr:| j| j�� 7 _| jdkr�| jr�| j�| j� d| _| jdkr�| j�t� d| j �� | j�t� d| j d@ �� W d| j s�| j� � X dS ) z[Close the _Stream object. No operation should be done on it afterwards. NTrz r� r� r� z<Ll �� )r� rg r� rT r� �flushr� rZ rS r� r� r� r� r� )r� r5 r5 r6 r� � s z _Stream.closec C s� | j �| j j �| _d| _| �d�dkr0td��| �d�dkrFtd��t| �d��}| �d� |d @ r�t| �d��d t| �d�� }| � |� |d @ r�x | �d�}|r�|t kr�P q�W |d @ r�x | �d�}|r�|t kr�P q�W |d@ r�| �d� d S )z:Initialize for reading a gzip compressed fileobj. r� r$ s �znot a gzip filer# � z unsupported compression method� � r@ r? � N) r� Z decompressobjr� r� r� � _Stream__readr r �ordrY r0 )r� �flagZxlenr1 r5 r5 r6 r� � s. z_Stream._init_read_gzc C s | j S )z3Return the stream's file pointer position. )r� )r� r5 r5 r6 �tell� s z _Stream.tellr c C s\ || j dkrNt|| j | j�\}}x t|�D ]}| �| j� q.W | �|� ntd��| j S )zXSet the stream's file pointer to pos. Negative seeking is forbidden. r z seeking backwards is not allowed)r� rX r^ rD rY r )r� r� r_ r` rJ r5 r5 r6 �seek� s z _Stream.seekNc C sZ |dkr:g }x | � | j�}|s P |�|� qW d�|�}n | � |�}| jt|�7 _|S )z�Return the next size number of bytes from the stream. If size is not defined, return all bytes of the stream up to EOF. Nr� )�_readr^ �append�joinr� r/ )r� r' �trT r5 r5 r6 rY s z _Stream.readc C s� | j dkr| �|�S t| j�}| jg}xd||k r�| �| j�}|sBP y| j�|�}W n | jk rp td��Y nX |� |� |t|�7 }q(W d� |�}||d� | _|d|� S )z+Return size bytes from the stream. r� zinvalid compressed datar� N) r� r� r/ r� r^ r� Z decompressr] r r� r� )r� r' �cr� rT r5 r5 r6 r� s" z _Stream._readc C sn t | j�}| jg}x6||k rH| j�| j�}|s0P |�|� |t |�7 }qW d�|�}||d� | _|d|� S )zsReturn size bytes from stream. If internal buffer is empty, read another block from the stream. r� N)r/ rT r� rY r^ r� r� )r� r' r� r� rT r5 r5 r6 Z__read3 s z_Stream.__read)r )N)rp rq rr rs r� r� r� rZ r� r� r� r� r� rY r� r� r5 r5 r5 r6 r� N s F r� c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) r� zsSmall proxy class that enables transparent compression detection for the Stream interface (mode 'r|*'). c C s || _ | j �t�| _d S )N)r� rY � BLOCKSIZErT )r� r� r5 r5 r6 r� I s z_StreamProxy.__init__c C s | j j| _| jS )N)r� rY rT )r� r' r5 r5 r6 rY M s z_StreamProxy.readc C sP | j �d�rdS | j dd� dkr8| j dd� dkr8d S | j �d �rHd S d S d S ) Ns �r� r � s BZhr� � s 1AY&SYr� )s ] �s �7zXZr� r� )rT � startswith)r� r5 r5 r6 r� Q s $ z_StreamProxy.getcomptypec C s | j �� d S )N)r� r� )r� r5 r5 r6 r� [ s z_StreamProxy.closeN)rp rq rr rs r� rY r� r� r5 r5 r5 r6 r� D s r� c @ sj e Zd ZdZddd�Zdd� Zdd� Zd d � Zd d � Zd d� Z e j fdd�Z ddd�Z dd� Zdd� ZdS )� _FileInFilezA thin wrapper around an existing file object that provides a part of its data as an individual file object. Nc C s� || _ || _|| _d| _t|dd �| _d| _|d kr>d|fg}d| _g | _d}| j}xT|D ]L\}}||kr~| j� d||d f� | j� d||| |f� ||7 }|| }qZW || jk r�| j� d|| jd f� d S )Nr r� FT) r� �offsetr' �positionrk r� r� � map_index�mapr� )r� r� r� r' Z blockinfoZlastposZrealposr5 r5 r6 r� h s( z_FileInFile.__init__c C s d S )Nr5 )r� r5 r5 r6 r� � s z_FileInFile.flushc C s dS )NTr5 )r� r5 r5 r6 �readable� s z_FileInFile.readablec C s dS )NFr5 )r� r5 r5 r6 �writable� s z_FileInFile.writablec C s | j �� S )N)r� �seekable)r� r5 r5 r6 r� � s z_FileInFile.seekablec C s | j S )z*Return the current file position. )r� )r� r5 r5 r6 r� � s z_FileInFile.tellc C s� |t jkr tt|d�| j�| _nj|t jkr\|dk rFt| j| d�| _q�t| j| | j�| _n.|t jkr�tt| j| | j�d�| _ntd��| jS )z(Seek to a position in the file. r zInvalid argument) �io�SEEK_SET�min�maxr' r� �SEEK_CUR�SEEK_ENDrG )r� r� �whencer5 r5 r6 r� � s z_FileInFile.seekc C s |dkr| j | j }nt|| j | j �}d}x�|dk�r xZ| j| j \}}}}|| j krd|k rln nP q:| jd7 _| jt| j�kr:d| _q:W t||| j �}|r�| j�|| j| � | j�|�}t|�|kr�t d��||7 }n |t | 7 }||8 }| j|7 _q.W |S )z!Read data from the file. Nr� r r# zunexpected end of data) r' r� r� r� r� r/ r� r� rY r r0 ) r� r' rT �data�start�stopr� r2 ra r5 r5 r6 rY � s. z_FileInFile.readc C s& | � t|��}||d t|��< t|�S )N)rY r/ )r� ra rT r5 r5 r6 �readinto� s z_FileInFile.readintoc C s d| _ d S )NT)r� )r� r5 r5 r6 r� � s z_FileInFile.close)N)N)rp rq rr rs r� r� r� r� r� r� r� r� r� rY r� r� r5 r5 r5 r6 r� b s r� c s e Zd Z� fdd�Z� ZS )� ExFileObjectc s& t |j|j|j|j�}t� �|� d S )N)r� r� � offset_datar' �sparse�superr� )r� �tarfile�tarinfor� )� __class__r5 r6 r� � s zExFileObject.__init__)rp rq rr r� � __classcell__r5 r5 )r� r6 r� � s r� c @ s� e Zd ZdZdZdTdd�Zedd� �Zejdd� �Zed d � �Z e jd d � �Z d d � Z dd� Z e e dfdd�Zdd� Zdd� Zdd� Zedd� �Zdd � Zed d � �Zed d � �Zed!d"� �Zed#d$� �Zed%d&� �Zed'd(� �Zd)d*� Z d+d,� Z d-d.� Z d/d0� Z d1d2� Z d3d4� Z!d5d6� Z"d7d8� Z#d9d:� Z$d;d<� Z%d=d>� Z&d?d@� Z'dAdB� Z(dCdD� Z)dEdF� Z*dGdH� Z+dIdJ� Z,dKdL� Z-dMdN� Z.dOdP� Z/dQdR� Z0dSS )Ur a Informational class which holds the details about an archive member given by a tar header block. TarInfo objects are returned by TarFile.getmember(), TarFile.getmembers() and TarFile.gettarinfo() and are usually created internally. )r� rg r) r* r' r( �chksum�type�linknamer+ r, �devmajor�devminorr� r� � pax_headersr� r� �_sparse_structs� _link_targetr� c C sj || _ d| _d| _d| _d| _d| _d| _t| _d| _ d| _ d| _ d| _ d| _ d| _d| _d| _i | _dS )zXConstruct a TarInfo object. name is the optional name of the member. i� r r� N)r� rg r) r* r' r( r� �REGTYPEr� r� r+ r, r� r� r� r� r� r� )r� r� r5 r5 r6 r� � s" zTarInfo.__init__c C s | j S )N)r� )r� r5 r5 r6 r% � s z TarInfo.pathc C s || _ d S )N)r� )r� r� r5 r5 r6 r% s c C s | j S )N)r� )r� r5 r5 r6 r& s zTarInfo.linkpathc C s || _ d S )N)r� )r� r� r5 r5 r6 r& s c C s d| j j| jt| �f S )Nz<%s %r at %#x>)r� rp r� �id)r� r5 r5 r6 �__repr__ s zTarInfo.__repr__c C sl | j | jd@ | j| j| j| j| j| j| j| j | j | j | j d� }|d t krh|d �d�sh|d d7 < |S )z9Return the TarInfo's attributes as a dictionary. i� ) r� rg r) r* r' r( r� r� r� r+ r, r� r� r� r� �/)r� rg r) r* r' r( r� r� r� r+ r, r� r� �DIRTYPEr� )r� �infor5 r5 r6 �get_info s zTarInfo.get_info�surrogateescapec C sT | � � }|tkr | �|||�S |tkr4| �|||�S |tkrH| �||�S td��dS )z<Return a tar header as a string of 512 byte blocks. zinvalid formatN)r� r �create_ustar_headerr �create_gnu_headerr �create_pax_headerrG )r� rP r3 r4 r� r5 r5 r6 �tobuf( s z TarInfo.tobufc C sn t |d< t|d �||��tkr(td��t|d �||��tkr^| �|d ||�\|d< |d< | �|t||�S )z3Return the object as a ustar header block. �magicr� zlinkname is too longr� �prefix) � POSIX_MAGICr/ r. � LENGTH_LINKrG � LENGTH_NAME�_posix_split_name�_create_headerr )r� r� r3 r4 r5 r5 r6 r� 6 s zTarInfo.create_ustar_headerc C s� t |d< d}t|d �||��tkr<|| �|d t||�7 }t|d �||��tkrl|| �|d t||�7 }|| �|t ||� S )z:Return the object as a GNU header block sequence. r� r� r� r� ) � GNU_MAGICr/ r. r� �_create_gnu_long_header�GNUTYPE_LONGLINKr� �GNUTYPE_LONGNAMEr� r )r� r� r3 r4 rT r5 r5 r6 r� C s zTarInfo.create_gnu_headerc C s0 t |d< | j�� }x�ddtfddtfddfD ]h\}}}||kr@q,y|| �dd � W n" tk rv || ||< w,Y nX t|| �|kr,|| ||< q,W xhd D ]`\}}||kr�d ||< q�|| }d | kr�d |d k r�n n t|t �r�t |�||< d ||< q�W |�r| � |t |�} nd} | | � |tdd� S )z�Return the object as a ustar header block. If it cannot be represented this way, prepend a pax extended header sequence with supplement information. r� r� r% r� r& )r+ r+ � )r, r, r� rA rB ))r) r? )r* r? )r' � )r( r� r r? r# r� r� )r� r� �copyr� r� r. �UnicodeEncodeErrorr/ � isinstance�float�str�_create_pax_generic_header�XHDTYPEr� r ) r� r� r3 r� r� Zhnamer2 rO �valrT r5 r5 r6 r� Q s4 * zTarInfo.create_pax_headerc C s | � |td�S )zAReturn the object as a pax global header block sequence. zutf-8)r �XGLTYPE)�clsr� r5 r5 r6 �create_pax_global_header� s z TarInfo.create_pax_global_headerc C s� |� d�}xltdt|��D ]R}d�|d|� �}d�||d� �}t|�||��tkrt|�||��tkrP qW td��||fS )zUSplit a name longer than 100 chars into a prefix and a name part. r� r# Nzname is too long)�splitrD r/ r� r. � LENGTH_PREFIXr� rG )r� r� r3 r4 Z componentsrJ r� r5 r5 r6 r� � s zTarInfo._posix_split_namec C sV t | �dd�d||�t| �dd�d@ d|�t| �dd�d|�t| �d d�d|�t| �d d�d |�t| �d d�d |�d | �dt�t | �dd�d||�| �dt�t | �dd�d||�t | �dd�d||�t| �dd�d|�t| �dd�d|�t | �dd�d||�g}t�dt d�|��}t |t d� �d }|dd� t d | d � |d d� }|S ) z�Return a header block. info is a dictionary with file information, format must be one of the *_FORMAT constants. r� r� r rg r i� r? r) r* r' r� r( s r� r� r� r+ r� r, r� r� r� r z%dsr� Ni����z%06o rA i����) r7 �getrQ r� r� rS r� r� r� rU rL )r� rP r3 r4 �partsrT r� r5 r5 r6 r� � s& &zTarInfo._create_headerc C s. t t| �t�\}}|dkr*| t| t 7 } | S )zdReturn the string payload filled with zero bytes up to the next 512 byte border. r )rX r/ r� r0 )Zpayloadr_ r` r5 r5 r6 �_create_payload� s zTarInfo._create_payloadc C sR |� ||�t }i }d|d< ||d< t|�|d< t|d< | �|t||�| �|� S )zTReturn a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence for name. z ././@LongLinkr� r� r' r� )r. r0 r/ r� r� r r )r r� r� r3 r4 r� r5 r5 r6 r� � s z TarInfo._create_gnu_long_headerc C s: d}x@|� � D ]4\}}y|�dd� W q tk r@ d}P Y qX qW d}|rV|d7 }x�|� � D ]�\}}|�d�}|r�|�|d�}n |�d�}t|�t|� d }d } } x"|tt| �� } | | kr�P | } q�W |tt| �d �d | d | d 7 }q`W i } d| d< || d< t|�| d< t| d< | �| td d�| � |� S )z�Return a POSIX.1-2008 extended or global header sequence that contains a list of keyword, value pairs. The values must be strings. Fzutf-8rB Tr� s 21 hdrcharset=BINARY r� r� r rA � � =� z././@PaxHeaderr� r� r' r� r� ) �itemsr. r� r/ r� rL r� r� r r ) r r� r� r3 Zbinary�keyword�valueZrecords�lrI r; r� r5 r5 r6 r � s< * z"TarInfo._create_pax_generic_headerc C st t |�dkrtd��t |�tkr(td��|�t�tkr>td��t|dd� �}|t|�krbt d��| � }t |dd� ||�|_ t|dd � �|_ t|d d � �|_ t|d d � �|_t|d d � �|_t|d d� �|_||_|dd � |_t |d d� ||�|_t |dd� ||�|_t |dd� ||�|_t|dd� �|_t|dd� �|_t |dd� ||�}|jtk�r�|j �d��r�t|_|jtk�r6d}g }xrt d�D ]f} y0t|||d � �} t||d |d � �} W n t k �r� P Y nX |� | | f� |d7 }�q�W t |d �} t|dd � �} || | f|_ |�!� �rN|j �"d�|_ |�rp|jt#k�rp|d |j |_ |S ) zAConstruct a TarInfo object from a 512 byte bytes object. r z empty headerztruncated headerzend of file header� � z bad checksumr �l �t �| � � i i i) iI iQ iY i� r� i� r� r� � i� i� i� )$r/ rt r� ru �countr0 rv rK rU rH r< r� rg r) r* r' r( r� r� r� r+ r, r� r� �AREGTYPEr� r� �GNUTYPE_SPARSErD rG r� �boolr� �isdir�rstrip� GNU_TYPES)r rT r3 r4 r� �objr� r� �structsrJ r� �numbytes� isextended�origsizer5 r5 r6 �frombuf sZ zTarInfo.frombufc C s8 |j �t�}| �||j|j�}|j �� t |_|�|�S )zOReturn the next TarInfo object from TarFile object tarfile. ) r� rY r� r& r3 r4 r� r� � _proc_member)r r� rT r! r5 r5 r6 � fromtarfileA s zTarInfo.fromtarfilec C sT | j ttfkr| �|�S | j tkr,| �|�S | j tttfkrF| � |�S | � |�S dS )zYChoose the right processing method depending on the type and call it. N) r� r� r� � _proc_gnulongr � _proc_sparser r �SOLARIS_XHDTYPE� _proc_pax� _proc_builtin)r� r� r5 r5 r6 r' V s zTarInfo._proc_memberc C sR |j �� | _| j}| �� s$| jtkr4|| �| j�7 }||_| � |j |j |j � | S )zfProcess a builtin type or an unknown type which will be treated as a regular file. ) r� r� r� �isregr� �SUPPORTED_TYPES�_blockr' r� �_apply_pax_infor� r3 r4 )r� r� r� r5 r5 r6 r- c s zTarInfo._proc_builtinc C s� |j �| �| j��}y| �|�}W n tk r> td��Y nX | j|_| jt krft ||j |j �|_ n | jtkr�t ||j |j �|_|S )zSProcess the blocks that hold a GNU longname or longlink member. z missing or bad subsequent header)r� rY r0 r' r( r rw r� r� r� r< r3 r4 r� r� r� )r� r� rT �nextr5 r5 r6 r) t s zTarInfo._proc_gnulongc C s� | j \}}}| ` x�|r�|j�t�}d}xvtd�D ]j}y0t|||d � �}t||d |d � �} W n tk rz P Y nX |r�| r�|�|| f� |d7 }q0W t|d �}qW || _ |j� � | _ | j | � | j � |_|| _ | S )z8Process a GNU sparse header plus extra headers. r � r� r i� )r� r� rY r� rD rK rG r� r r� r� r� r0 r' r� ) r� r� r" r$ r% rT r� rJ r� r# r5 r5 r6 r* � s( zTarInfo._proc_sparsec C s0 |j �| �| j��}| jtkr&|j}n |j�� }t� d|�}|dk rX|� d�� d�|d< |� d�}|dkrr|j }nd}t�d�}d}x�|�||�}|s�P |�� \} } t| �} | dkr�td ��||�d �d |�d�| d � } | �| dd|j�} | tk�r| �| ||j |j�} n| �| dd|j�} | || < || 7 }q�W y| �|�} W n tk �rd td ��Y nX d |k�r~| �| |� nHd |k�r�| � | ||� n.|� d�dk�r�|� d�dk�r�| � | ||� | jt t fk�r,| � ||j |j� | j!| _!d|k�r,| j"} | �#� �s| jt$k�r&| | �| j�7 } | |_!| S )zVProcess an extended or global header as described in POSIX.1-2008. s \d+ hdrcharset=([^\n]+)\nNr# zutf-8� hdrcharsetZBINARYs (\d+) ([^=]+)=r zinvalid headerr$ z missing or bad subsequent headerzGNU.sparse.mapzGNU.sparse.sizezGNU.sparse.major�1zGNU.sparse.minorrC r' )%r� rY r0 r' r� r r� r� �re�search�groupr: r r3 �compile�match�groupsrE rH rj r� �_decode_pax_fieldr4 �PAX_NAME_FIELDSr( r rw �_proc_gnusparse_01�_proc_gnusparse_00�_proc_gnusparse_10r r+ r1 r� r� r. r/ )r� r� rT r� r: r4 r3 Zregexr� r2 r r r2 r� r5 r5 r6 r, � sd $ zTarInfo._proc_paxc C sp g }x(t �d|�D ]}|�t|�d��� qW g }x(t �d|�D ]}|�t|�d��� q@W tt||��|_dS )z?Process a GNU tar extended sparse header, version 0.0. s \d+ GNU.sparse.offset=(\d+)\nr# s \d+ GNU.sparse.numbytes=(\d+)\nN)r6 �finditerr� rE r8 �list�zipr� )r� r2 r� rT Zoffsetsr: r# r5 r5 r6 r? s zTarInfo._proc_gnusparse_00c C s@ dd� |d � d�D �}tt|ddd� |ddd� ��|_dS )z?Process a GNU tar extended sparse header, version 0.1. c S s g | ] }t |��qS r5 )rE )�.0�xr5 r5 r6 � <listcomp> s z.TarInfo._proc_gnusparse_01.<locals>.<listcomp>zGNU.sparse.map�,Nr$ r# )r rB rC r� )r� r2 r� r� r5 r5 r6 r> s zTarInfo._proc_gnusparse_01c C s� d}g }|j �t�}|�dd�\}}t|�}xJt|�|d k rvd|krV||j �t�7 }|�dd�\}}|�t|�� q.W |j �� |_t t |ddd� |ddd� ��|_ dS )z?Process a GNU tar extended sparse header, version 1.0. Nr r# r$ ) r� rY r� r rE r/ r� r� r� rB rC r� )r� r2 r� r� Zfieldsr� rT Znumberr5 r5 r6 r@ s zTarInfo._proc_gnusparse_10c C s� x�|� � D ]�\}}|dkr(t| d|� q |dkrBt| dt|�� q |dkr\t| dt|�� q |tkr |tkr�yt| |�}W n tk r� d}Y nX |dkr�|�d�}t| ||� q W |�� | _dS ) zoReplace fields with supplemental information from a previous pax extended or global header. zGNU.sparse.namer% zGNU.sparse.sizer' zGNU.sparse.realsizer r� N) r �setattrrE � PAX_FIELDS�PAX_NUMBER_FIELDSrG r r� r� )r� r� r3 r4 r r r5 r5 r6 r1 / s" zTarInfo._apply_pax_infoc C s. y |� |d�S tk r( |� ||�S X dS )z1Decode a single field from a pax record. rB N)r: �UnicodeDecodeError)r� r r3 Zfallback_encodingZfallback_errorsr5 r5 r6 r< F s zTarInfo._decode_pax_fieldc C s" t |t�\}}|r|d7 }|t S )z_Round up a byte count by BLOCKSIZE and return it, e.g. _block(834) => 1024. r# )rX r� )r� r r_ r` r5 r5 r6 r0 N s zTarInfo._blockc C s | j tkS )N)r� � REGULAR_TYPES)r� r5 r5 r6 r. W s z TarInfo.isregc C s | � � S )N)r. )r� r5 r5 r6 �isfileY s zTarInfo.isfilec C s | j tkS )N)r� r� )r� r5 r5 r6 r [ s z TarInfo.isdirc C s | j tkS )N)r� �SYMTYPE)r� r5 r5 r6 �issym] s z TarInfo.issymc C s | j tkS )N)r� �LNKTYPE)r� r5 r5 r6 �islnk_ s z TarInfo.islnkc C s | j tkS )N)r� �CHRTYPE)r� r5 r5 r6 �ischra s z TarInfo.ischrc C s | j tkS )N)r� �BLKTYPE)r� r5 r5 r6 �isblkc s z TarInfo.isblkc C s | j tkS )N)r� �FIFOTYPE)r� r5 r5 r6 �isfifoe s zTarInfo.isfifoc C s | j d k S )N)r� )r� r5 r5 r6 �issparseg s zTarInfo.issparsec C s | j tttfkS )N)r� rR rT rV )r� r5 r5 r6 �isdevi s z TarInfo.isdevN)r� )1rp rq rr rs � __slots__r� �propertyr% �setterr& r� r� r r r� r� r� r� � classmethodr r� � staticmethodr� r r� r r& r( r' r- r) r* r, r? r> r@ r1 r< r0 r. rM r rO rQ rS rU rW rX rY r5 r5 r5 r6 r � sT 1 3 ? h c @ s� e Zd ZdZdZdZdZdZeZ e Z dZ e ZeZd\dd �Zedddefd d ��Zed]d d ��Zed^dd��Zed_dd��Zed`dd��Zddddd�Zdd� Zd d � Zd d � Z d d!� Z dad"d#�Z dbdd%�d&d'�Z dcdd(�d)d*�Z ddd+d,�Z!dedd.�d/d0�Z"dfdd.�d2d3�Z#d4d5� Z$dgd6d7�Z%d8d9� Z&d:d;� Z'd<d=� Z(d>d?� Z)d@dA� Z*dBdC� Z+dDdE� Z,dFdG� Z-dHdI� Z.dJdK� Z/dhdLdM�Z0dNdO� Z1didPdQ�Z2dRdS� Z3dTdU� Z4dVdW� Z5dXdY� Z6dZd[� Z7dS )jr z=The TarFile Class provides an interface to tar archives. r Fr# Nry r� c C s� ddddd�}||kr t d��|| _|| | _|sh| jdkrTtj�|�sTd| _d| _t|| j�}d | _n@|d kr�t|d �r�t |j t t f�r�|j }t|d �r�|j| _d | _|r�tj� |�nd | _ || _|d k r�|| _|d k r�|| _|d k r�|| _|d k r�|| _|d k �r || _| | _| d k �r0| jtk�r0| | _ni | _| d k �rF| | _| d k �rV| | _| | _d | _g | _d | _ | j� � | _ i | _ y�| jdk�r�d | _ | �!� | _ | jdk�r2x�| j�"| j � y | j�#| �}| j�$|� W nT t%k �r� | j�"| j � P Y n0 t&k �r* } zt't |���W d d }~X Y nX �q�W | jdk�r|d | _ | j�r|| j�(| j�)� �}| j�*|� | j t+|�7 _ W n& | j�s�| j�,� d | _� Y nX d S )a� Open an (uncompressed) tar archive `name'. `mode' is either 'r' to read from an existing archive, 'a' to append data to an existing file or 'w' to create a new file overwriting an existing one. `mode' defaults to 'r'. If `fileobj' is given, it is used for reading or writing data. If it can be determined, `mode' is overridden by `fileobj's mode. `fileobj' is not closed, when TarFile is closed. �rbzr+b�wbZxb)ry �arz rE z!mode must be 'r', 'a', 'w' or 'x'ra rz FNr� rg Try )ra rz rE )-rG rg �_moder| r% �exists� bltn_openr� r� r� r� r� rL �abspathr� rP r� � dereference� ignore_zerosr3 r4 r r� �debug� errorlevel� copybufsizer� �members�_loadedr� r� �inodes� firstmemberr2 r� r( r� rv r r r r� rZ r/ r� )r� r� rg r� rP r� rf rg r3 r4 r� rh ri rj Zmodes�erT r5 r5 r6 r� � s� $ zTarFile.__init__c s� |s|st d��|dkr�� fdd�}xtt� j|d�D ]b}t� � j| �}|dk rX|�� } y||d|f|�S ttfk r� |dk r�|�| � w4Y q4X q4W td���nd |k�r|�d d �\} }| p�d} |p�d }|� jkr�t� � j| �}n td | ��||| |f|�S d |k�r�|�d d �\} }| �p*d} |�p4d }| dk�rHt d��t || |||�} y� || | f|�} W n | � � � Y nX d| _ | S |dk�r�� j |||f|�S t d��dS )a� Open a tar archive for reading, writing or appending. Return an appropriate TarFile class. mode: 'r' or 'r:*' open for reading with transparent compression 'r:' open for reading exclusively uncompressed 'r:gz' open for reading with gzip compression 'r:bz2' open for reading with bzip2 compression 'r:xz' open for reading with lzma compression 'a' or 'a:' open for appending, creating the file if necessary 'w' or 'w:' open for writing without compression 'w:gz' open for writing with gzip compression 'w:bz2' open for writing with bzip2 compression 'w:xz' open for writing with lzma compression 'x' or 'x:' create a tarfile exclusively without compression, raise an exception if the file is already created 'x:gz' create a gzip compressed tarfile, raise an exception if the file is already created 'x:bz2' create a bzip2 compressed tarfile, raise an exception if the file is already created 'x:xz' create an lzma compressed tarfile, raise an exception if the file is already created 'r|*' open a stream of tar blocks with transparent compression 'r|' open an uncompressed stream of tar blocks for reading 'r|gz' open a gzip compressed stream of tar blocks 'r|bz2' open a bzip2 compressed stream of tar blocks 'r|xz' open an lzma compressed stream of tar blocks 'w|' open an uncompressed stream for writing 'w|gz' open a gzip compressed stream for writing 'w|bz2' open a bzip2 compressed stream for writing 'w|xz' open an lzma compressed stream for writing znothing to open)ry zr:*c s � j | dkS )N�taropen)� OPEN_METH)r� )r r5 r6 �not_compressed s z$TarFile.open.<locals>.not_compressed)�keyNry z%file could not be opened successfully�:r# r� zunknown compression type %r�|)ry rz zmode must be 'r' or 'w'F)ra rz rE zundiscernible mode) rG �sortedrq rk r� r r r� r r� r� r� rp ) r r� rg r� r^ �kwargsrr r� �funcZ saved_posrf �streamr� r5 )r r6 r � sP % z TarFile.openc K s |dkrt d��| |||f|�S )zCOpen uncompressed tar archive name for reading or writing. )ry ra rz rE z!mode must be 'r', 'a', 'w' or 'x')rG )r r� rg r� rw r5 r5 r6 rp Q s zTarFile.taropenr� c K s� |dkrt d��yddlm} W n tk r< td��Y nX y|||d ||�}W n. tk r� |dk r||dkr|td ��� Y nX y| j|||f|�}W nB tk r� |�� |dkr�td ��� Y n |�� � Y nX d |_ |S ) zkOpen gzip compressed tar archive name for reading or writing. Appending is not allowed. )ry rz rE z mode must be 'r', 'w' or 'x'r )�GzipFilez gzip module is not availablera Nry znot a gzip fileF) rG Zgziprz r� r r� r rp r� r� )r r� rg r� � compresslevelrw rz r� r5 r5 r6 �gzopenY s0 zTarFile.gzopenc K s� |dkrt d��yddlm} W n tk r< td��Y nX ||pF|||d�}y| j|||f|�}W nF ttfk r� |�� |dkr�t d��� Y n |�� � Y nX d |_ |S ) zlOpen bzip2 compressed tar archive name for reading or writing. Appending is not allowed. )ry rz rE z mode must be 'r', 'w' or 'x'r )�BZ2Filezbz2 module is not available)r{ ry znot a bzip2 fileF) rG r� r} r� r rp r� �EOFErrorr� r r� )r r� rg r� r{ rw r} r� r5 r5 r6 �bz2openz s& zTarFile.bz2openc K s� |dkrt d��yddlm}m} W n tk r@ td��Y nX ||pJ|||d�}y| j|||f|�}W nF |tfk r� |�� |dkr�t d��� Y n |�� � Y nX d |_ |S ) zkOpen lzma compressed tar archive name for reading or writing. Appending is not allowed. )ry rz rE z mode must be 'r', 'w' or 'x'r )�LZMAFiler� z lzma module is not available)�presetry znot an lzma fileF) rG r� r� r� r� r rp r~ r� r r� ) r r� rg r� r� rw r� r� r� r5 r5 r6 �xzopen� s& zTarFile.xzopenrp r| r r� )r� r� r� r� c C s� | j r dS d| _ z`| jdkrn| j�ttd � | jtd 7 _t| jt�\}}|dkrn| j�tt| � W d| j s�| j� � X dS )zlClose the TarFile. In write-mode, two finishing zero blocks are appended to the archive. NT)ra rz rE r$ r ) r� rg r� rZ r0 r� r� rX � RECORDSIZEr� r� )r� r_ r` r5 r5 r6 r� � s z TarFile.closec C s" | � |�}|dkr td| ��|S )a Return a TarInfo object for member `name'. If `name' can not be found in the archive, KeyError is raised. If a member occurs more than once in the archive, its last occurrence is assumed to be the most up-to-date version. Nzfilename %r not found)� _getmember�KeyError)r� r� r� r5 r5 r6 � getmember� s zTarFile.getmemberc C s | � � | js| �� | jS )z�Return the members of the archive as a list of TarInfo objects. The list has the same order as the members in the archive. )�_checkrl �_loadrk )r� r5 r5 r6 � getmembers� s zTarFile.getmembersc C s dd� | � � D �S )z�Return the members of the archive as a list of their names. It has the same order as the list returned by getmembers(). c S s g | ] }|j �qS r5 )r� )rD r� r5 r5 r6 rF � s z$TarFile.getnames.<locals>.<listcomp>)r� )r� r5 r5 r6 �getnames� s zTarFile.getnamesc C sl | � d� |dk r|j}|dkr$|}tj�|�\}}|�tjd�}|�d�}| �� }| |_ |dkr�t td�r~| j s~t� |�}q�t� |�}nt�|�� �}d}|j}t �|��r |j|jf} | j s�|jdkr�| | jkr�|| j| kr�t} | j| }nt} | d �rt|| j| < nht �|��r t} nVt �|��r0t} nDt � |��rLt } t� |�}n(t � |��r^t } nt �!|��rpt"} ndS ||_||_#|j$|_%|j&|_'| tk�r�|j(|_)nd|_)|j*|_+| |_,||_-t.�r�yt.�/|j%�d |_0W n t1k �r� Y nX t2�r&yt2�3|j'�d |_4W n t1k �r$ Y nX | t t"fk�rht td��rht td ��rht�5|j6�|_7t�8|j6�|_9|S ) a� Create a TarInfo object from the result of os.stat or equivalent on an existing file. The file is either named by `name', or specified as a file object `fileobj' with a file descriptor. If given, `arcname' specifies an alternative name for the file in the archive, otherwise, the name is taken from the 'name' attribute of 'fileobj', or the 'name' argument. The name should be a text string. �awxNr� �lstatr� r# r �major�minor):r� r� r| r% � splitdriver� �sep�lstripr� r� r� rf r� re �fstat�fileno�st_mode�S_ISREG�st_ino�st_dev�st_nlinkrm rP r� �S_ISDIRr� �S_ISFIFOrV �S_ISLNKrN �readlink�S_ISCHRrR �S_ISBLKrT rg �st_uidr) �st_gidr* �st_sizer' �st_mtimer( r� r� �pwd�getpwuidr+ r� �grpZgetgrgidr, r� �st_rdevr� r� r� ) r� r� �arcnamer� Zdrvr� Zstatresr� Zstmd�inoder� r5 r5 r6 � gettarinfo� s~ zTarFile.gettarinfoT)rk c C s� | � � |dkr| }x�|D ]�}|r�tt�|j�� td|jp@|j|jpJ|jf � |� � sb|� � r|tdd|j |j f � ntd|j � tdt�|j�dd� � t|j|�� r�dnd � |r�|�� r�td |j � |�� r�td |j � t� qW dS ) a Print a table of contents to sys.stdout. If `verbose' is False, only the names of the members are printed. If it is True, an `ls -l'-like output is produced. `members' is optional and must be a subset of the list returned by getmembers(). Nz%s/%sz%10sz%d,%dz%10dz%d-%02d-%02d %02d:%02d:%02dr� r� r� z-> zlink to )r� ro re rf rg r+ r) r, r* rS rU r� r� r' r� Z localtimer( r� r rO r� rQ rn )r� �verboserk r� r5 r5 r6 rB Q s* z TarFile.list)�filterc C s: | � d� |dkr|}| jdk rFtj�|�| jkrF| �dd| � dS | �d|� | �||�}|dkrz| �dd| � dS |dk r�||�}|dkr�| �dd| � dS |�� r�t|d��}| � ||� W dQ R X nd|� � �r,| � |� |�r6xHt t� |��D ]*}| j tj�||�tj�||�||d � q�W n | � |� dS ) a! Add the file `name' to the archive. `name' may be any type of file (directory, fifo, symbolic link, etc.). If given, `arcname' specifies an alternative name for the file in the archive. Directories are added recursively by default. This can be avoided by setting `recursive' to False. `filter' is a function that expects a TarInfo object argument and returns the changed TarInfo object, if it returns None the TarInfo object will be excluded from the archive. r� Nr$ ztarfile: Skipped %rr# z tarfile: Unsupported type %rztarfile: Excluded %rr_ )r� )r� r� r| r% re �_dbgr� r. rd �addfiler rv �listdir�addr� )r� r� r� � recursiver� r� �fr5 r5 r6 r� q s4 z TarFile.addc C s� | � d� t�|�}|�| j| j| j�}| j�|� | jt |�7 _| j }|dk r�t || j|j |d� t |j t�\}}|dkr�| j�tt| � |d7 }| j|t 7 _| j�|� dS )a Add the TarInfo object `tarinfo' to the archive. If `fileobj' is given, it should be a binary file, and tarinfo.size bytes are read from it and added to the archive. You can create TarInfo objects directly, or by using gettarinfo(). r� N)r^ r r# )r� r� r� rP r3 r4 r� rZ r� r/ rj rW r' rX r� r0 rk r� )r� r� r� rT r^ r_ r` r5 r5 r6 r� � s zTarFile.addfile�.)� numeric_ownerc C s g }|dkr| }xF|D ]>}|� � r<|�|� t�|�}d|_| j|||� � |d� qW |jdd� d� |�� x�|D ]�}tj� ||j �}y,| j |||d� | � ||� | � ||� W qv tk r� } z"| jdkrւ n| �dd | � W dd}~X Y qvX qvW dS ) a� Extract all members from the archive to the current working directory and set owner, modification time and permissions on directories afterwards. `path' specifies a different directory to extract to. `members' is optional and must be a subset of the list returned by getmembers(). If `numeric_owner` is True, only the numbers for user/group names are used and not the names. Ni� )� set_attrsr� c S s | j S )N)r� )ra r5 r5 r6 �<lambda>� r� z$TarFile.extractall.<locals>.<lambda>)rs )r� r# z tarfile: %s)r r� r� rg �extract�sort�reverser| r% r� r� �chown�utime�chmodr ri r� )r� r% rk r� Z directoriesr� �dirpathro r5 r5 r6 � extractall� s, zTarFile.extractallr� c C s | � d� t|t�r | �|�}n|}|�� r>tj�||j�|_ y"| j |tj�||j �||d� W n� t k r� } zH| j dkr�� n6|jdkr�| �dd|j � n| �dd|j|jf � W dd}~X Y nB tk �r } z"| j dkr� n| �dd| � W dd}~X Y nX dS )a� Extract a member from the archive to the current working directory, using its full name. Its file information is extracted as accurately as possible. `member' may be a filename or a TarInfo object. You can specify a different directory using `path'. File attributes (owner, mtime, mode) are set unless `set_attrs' is False. If `numeric_owner` is True, only the numbers for user/group names are used and not the names. ry )r� r� r Nr# z tarfile: %sztarfile: %s %r)r� r� r� r� rQ r| r% r� r� r� �_extract_memberr� r� ri �filenamer� �strerrorr )r� �memberr% r� r� r� ro r5 r5 r6 r� � s( ( zTarFile.extractc C s� | � d� t|t�r | �|�}n|}|�� s6|jtkrB| �| |�S |�� sR|� � rzt| j t �rht d��q~| � | �|��S ndS dS )z�Extract a member from the archive as a file object. `member' may be a filename or a TarInfo object. If `member' is a regular file or a link, an io.BufferedReader object is returned. Otherwise, None is returned. ry z'cannot extract (sym)link as file objectN)r� r� r� r� r. r� r/ � fileobjectrQ rO r� r� r � extractfile�_find_link_target)r� r� r� r5 r5 r6 r� s zTarFile.extractfilec C sT |� d�}|�dtj�}tj�|�}|r>tj�|�s>t�|� |�� sN|� � rh| � dd|j |j f � n| � d|j � |� � r�| �||� n�|�� r�| �||� nx|�� r�| �||� nb|�� s�|�� r�| �||� nD|�� s�|� � r�| �||� n&|jtk�r| �||� n | �||� |�rP| �|||� |� � �sP| �||� | � ||� dS )z\Extract the TarInfo object tarinfo to a physical file called targetpath. r� r# z%s -> %sN) r r� r| r� r% �dirnamerc �makedirsrQ rO r� r� r� r. �makefiler �makedirrW �makefiforS rU �makedev�makelinkr� r/ � makeunknownr� r� r� )r� r� � targetpathr� r� Z upperdirsr5 r5 r6 r� * s4 zTarFile._extract_memberc C s* yt �|d� W n tk r$ Y nX dS )z,Make a directory called targetpath. i� N)r| �mkdir�FileExistsError)r� r� r� r5 r5 r6 r� [ s zTarFile.makedirc C s� | j }|�|j� | j}t|d��f}|jdk rrx,|jD ]"\}}|�|� t|||t|� q6W |�|j� |� � nt|||jt|� W dQ R X dS )z'Make a file called targetpath. r` N) r� r� r� rj rd r� rW r r' �truncate)r� r� r� �sourcer^ �targetr� r' r5 r5 r6 r� e s zTarFile.makefilec C s" | � ||� | �dd|j � dS )zYMake a file from a TarInfo object with an unknown type at targetpath. r# z9tarfile: Unknown file type %r, extracted as regular file.N)r� r� r� )r� r� r� r5 r5 r6 r� u s zTarFile.makeunknownc C s" t td�rt�|� ntd��dS )z'Make a fifo called targetpath. �mkfifoz fifo not supported by systemN)r� r| r� r )r� r� r� r5 r5 r6 r� } s zTarFile.makefifoc C s^ t td�rt td�s td��|j}|�� r6|tjO }n |tjO }t�||t� |j |j �� dS )z<Make a character or block device called targetpath. �mknodr� z'special devices not supported by systemN) r� r| r rg rU re �S_IFBLK�S_IFCHRr� r� r� r� )r� r� r� rg r5 r5 r6 r� � s zTarFile.makedevc C s� yL|� � rt�|j|� n0tj�|j�r8t�|j|� n| �| � |�|� W nH t k r� y| �| � |�|� W n t k r� t d��Y nX Y nX dS )z�Make a (symbolic) link called targetpath. If it cannot be created (platform limitation), we try to make a copy of the referenced file instead of a link. z%unable to resolve link inside archiveN) rO r| �symlinkr� r% rc r� �linkr� r� �symlink_exceptionr� r )r� r� r� r5 r5 r6 r� � s zTarFile.makelinkc C s� t td�r�t�� dkr�|j}|j}|s�ytr<t�|j�d }W n tk rR Y nX yt rjt � |j �d }W n tk r� Y nX y4|� � r�t td�r�t� |||� nt�|||� W n tk r� td��Y nX dS )z�Set owner of targetpath according to tarinfo. If numeric_owner is True, use .gid/.uid instead of .gname/.uname. If numeric_owner is False, fall back to .gid/.uid when the search based on name fails. �geteuidr r$ �lchownzcould not change ownerN)r� r| r� r* r) r� Zgetgrnamr, r� r� �getpwnamr+ rO r� r� r� r )r� r� r� r� �g�ur5 r5 r6 r� � s( z TarFile.chownc C s> t td�r:yt�||j� W n tk r8 td��Y nX dS )zASet file permissions of targetpath according to tarinfo. r� zcould not change modeN)r� r| r� rg r� r )r� r� r� r5 r5 r6 r� � s z TarFile.chmodc C sH t td�sdS yt�||j|jf� W n tk rB td��Y nX dS )zBSet modification time of targetpath according to tarinfo. r� Nz"could not change modification time)r� r| r� r( r� r )r� r� r� r5 r5 r6 r� � s z TarFile.utimec C s� | � d� | jdk r$| j}d| _|S | j| j�� krZ| j�| jd � | j�d�sZtd��d}�xby| j� | �}W �nH t k r� } z0| j r�| � dd| j|f � | jt 7 _wbW dd}~X Y n� tk �r, } zL| j �r| � dd| j|f � | jt 7 _wbn| jdk�r tt|���W dd}~X Y n� tk �rT | jdk�rPtd��Y nj tk �r� } z | jdk�r~tt|���W dd}~X Y n0 tk �r� } ztt|���W dd}~X Y nX P qbW |dk �r�| j�|� nd | _|S ) z�Return the next member of the archive as a TarInfo object, when TarFile is opened for reading. Return None if there is no more available. ZraNr# zunexpected end of datar$ z0x%X: %sr z empty fileT)r� rn r� r� r� r� rY r r� r( rv rg r� r� rH r� rt ru rw rk r� rl )r� �mr� ro r5 r5 r6 r2 � sL z TarFile.nextc C sn | � � }|dk r"|d|�|�� }|r2tj�|�}x6t|�D ]*}|rTtj�|j�}n|j}||kr<|S q<W dS )z}Find an archive member by name from bottom to top. If tarinfo is given, it is used as the starting point. N)r� �indexr| r% �normpath�reversedr� )r� r� r� � normalizerk r� � member_namer5 r5 r6 r� s zTarFile._getmemberc C s" x| � � }|dkrP qW d| _dS )zWRead through the entire archive file and look for readable members. NT)r2 rl )r� r� r5 r5 r6 r� ) s z TarFile._loadc C s: | j rtd| jj ��|dk r6| j|kr6td| j ��dS )znCheck if TarFile is still open, and if the operation's mode corresponds to TarFile's mode. z %s is closedNzbad operation for mode %r)r� r� r� rp rg )r� rg r5 r5 r6 r� 3 s zTarFile._checkc C s` |� � r.d�tdtj�|j�|jf��}d}n |j}|}| j||dd�}|dkr\t d| ��|S )zZFind the target member of a symlink or hardlink member in the archive. r� NT)r� r� zlinkname %r not found) rO r� r� r| r% r� r� r� r� r� )r� r� r� �limitr� r5 r5 r6 r� < s zTarFile._find_link_targetc c s� | j r| jE dH dS d}| jdk r:| �� }|d7 }|V xN|t| j�k rV| j| }n"| j st| �� }|sxd| _ dS ndS |d7 }|V q<W dS )z$Provide an iterator object. Nr r# T)rl rk rn r2 r/ )r� r� r� r5 r5 r6 �__iter__O s& zTarFile.__iter__c C s || j krt|tjd� dS )z.Write debugging output to sys.stderr. )�fileN)rh rn rl �stderr)r� �level�msgr5 r5 r6 r� n s z TarFile._dbgc C s | � � | S )N)r� )r� r5 r5 r6 � __enter__t s zTarFile.__enter__c C s, |d kr| � � n| js"| j� � d| _d S )NT)r� r� r� r� )r� r� r � tracebackr5 r5 r6 �__exit__x s zTarFile.__exit__) Nry NNNNNNr� NNNN)ry N)ry Nr� )ry Nr� )ry NN)NNN)T)NT)N)r� N)r� T)TF)NF)N)8rp rq rr rs rh rf rg ri r rP r r3 r4 r r� r� r� r� r] r� r rp r| r r� rq r� r� r� r� r� rB r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r2 r� r� r� r� r� r� r� r� r5 r5 r5 r6 r m sv lZ d 3 (& 0 6 c C s. yt | �}|�� dS tk r( dS X dS )zfReturn True if name points to a tar archive that we are able to handle, else return False. 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