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N)�encode�len�NUL)�s�length�encoding�errors� r7 �&/opt/python38/lib/python3.8/tarfile.py�stn� s r9 c C s* | � d�}|dkr | d|� } | �||�S )z8Convert a null-terminated bytes object to a string. r ���N)�find�decode)r3 r5 r6 �pr7 r7 r8 �nts� s r> c C s� | d dkrbd}t t| �d �D ] }|dK }|| |d 7 }q | d dkr�dt| �d | }n@z"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�0�invalid header)�ranger1 r> �int�strip� ValueError�InvalidHeaderError)r3 �n�ir7 r7 r8 �nti� s rN rA c C s� t | �} d| kr$d|d k rDn n td|d | f d�t }n�|tkr�d|d | krrd|d k r�n nV| dkr�tdg�}ntdg�}d| | } t|d �D ] }|�d| d@ � | dL } q�ntd ��|S ) z/Convert a python number to a number field. r rA r# z%0*orC rB r? r@ zoverflow in number field)rH �bytesr2 r � bytearrayrG �insertrJ )rL �digits�formatr3 rM r7 r7 r8 �itn� s 2 rT c C s0 dt t�d| �� }dt t�d| �� }||fS )a� Calculate the checksum for a member's header by summing up all characters except for the chksum field which is treated as if it was filled with spaces. According to the GNU tar sources, some tars (Sun and NeXT) calculate chksum with signed char, which will be different if there are chars in the buffer with the high bit set. So we calculate two checksums, unsigned and signed. rB Z 148B8x356BZ 148b8x356b)�sum�struct� unpack_from)�bufZunsigned_chksumZ signed_chksumr7 r7 r8 � calc_chksums� s rY c C s� |pd}|dkrdS |dkr.t �| ||� dS t||�\}}t|�D ],}| �|�}t|�|k rf|d��|�|� qD|dkr�| �|�}t|�|k r�|d��|�|� dS )zjCopy length bytes from fileobj src to fileobj dst. If length is None, copy the entire content. i @ r N�unexpected end of data)�shutil� copyfileobj�divmodrG �readr1 �write) �src�dstr4 � exception�bufsize�blocks� remainder�brX r7 r7 r8 r\ � s$ r\ c C s8 t tjdd �}|d k r(| �|d��|�} t| dd� d S )Nr5 �backslashreplace� )�end)�getattr�sys�stdoutr0 r< �print)r3 r5 r7 r7 r8 � _safe_print s rn c @ s e Zd ZdZdS )r zBase exception.N��__name__� __module__� __qualname__�__doc__r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z%General exception for extract errors.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z&Exception for unreadable tar archives.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z.Exception for unavailable compression methods.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z=Exception for unsupported operations on stream-like TarFiles.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z!Base exception for header errors.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )�EmptyHeaderErrorz Exception for empty headers.Nro r7 r7 r7 r8 rt s rt c @ s e Zd ZdZdS )�TruncatedHeaderErrorz Exception for truncated headers.Nro r7 r7 r7 r8 ru s ru c @ s e Zd ZdZdS )�EOFHeaderErrorz"Exception for end of file headers.Nro r7 r7 r7 r8 rv " s rv c @ s e Zd ZdZdS )rK z Exception for invalid headers.Nro r7 r7 r7 r8 rK % s rK c @ s e Zd ZdZdS )�SubsequentHeaderErrorz3Exception for missing and invalid extended headers.Nro r7 r7 r7 r8 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�name�moder7 r7 r8 �__init__5 s �� z_LowLevelFile.__init__c C s t �| j� d S �N)r} �closer� �r� r7 r7 r8 r� > s z_LowLevelFile.closec C s t �| j|�S r� )r} r^ r� �r� r' r7 r7 r8 r^ A s z_LowLevelFile.readc C s t �| j|� d S r� )r} r_ r� �r� r3 r7 r7 r8 r_ D s z_LowLevelFile.writeN)rp rq rr rs r� r� r^ r_ r7 r7 r7 r8 rx / s rx c @ sr e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z d dd�Z 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| _ �zL|dkr�z ddl }W n t k r� td ��Y nX || _ |�d�| _|d kr�| �� |j| _n| �� n�|d k�r:z ddl}W n t k �r td ��Y nX |d k�r.d| _|�� | _t| _n |�� | _n||d k�r�z 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$Construct a _Stream object. TNF�*� � r �gzz zlib module is not availablerz �bz2�bz2 module is not available�xz� lzma module is not available�tar�unknown compression type %r) � _extfileobjrx � _StreamProxy� getcomptyper� r� �comptype�fileobjrc rX �pos�closed�zlib� ImportErrorr �crc32�crc� _init_read_gz�errorrb �_init_write_gzr� �dbuf�BZ2Decompressor�cmp�OSError� BZ2Compressor�lzma�LZMADecompressor� LZMAError�LZMACompressorr� ) r� r� r� r� r� rc r� r� r� r7 r7 r8 r� R sl z_Stream.__init__c C s t | d�r| js| �� d S )Nr� )r� r� r� r� r7 r7 r8 �__del__� s z_Stream.__del__c C s� | j �d| j j| j j | j jd�| _t�dtt � � ��}| � d| d � | j � d�rf| j dd� | _ | � | j � d d �t � dS ) z6Initialize for writing with gzip compression. � r �<Ls �s ��.gzN���z iso-8859-1�replace)r� � compressobj�DEFLATED� MAX_WBITS� DEF_MEM_LEVELr� rV �packrH �time�_Stream__writer� �endswithr0 r2 )r� Z timestampr7 r7 r8 r� � s � z_Stream._init_write_gzc C sR | j dkr | j�|| j�| _| jt|�7 _| j dkrD| j�|�}| �|� dS )z&Write string s to the stream. r� r� N) r� r� r� r� r� r1 r� �compressr� r� r7 r7 r8 r_ � s z _Stream.writec C sN | j |7 _ t| j �| jkrJ| j�| j d| j� � | j | jd� | _ qdS )z]Write string s to the stream if a whole new block is ready to be written. N)rX r1 rc r� r_ r� r7 r7 r8 Z__write� s z_Stream.__writec C s� | j r dS d| _ z�| jdkr:| jdkr:| j| j�� 7 _| jdkr�| jr�| j� | j� d| _| jdkr�| j� t � d| j �� | j� t � d| j d@ �� W 5 | js�| j�� X dS ) z[Close the _Stream object. No operation should be done on it afterwards. NTr{ r� r� r� r� l �� )r� r� r� r� r� r� rX r� �flushr_ rV r� r� r� r� r7 r7 r8 r� � s z _Stream.closec C s� | j �| j j �| _d| _| �d�dkr0td��| �d�dkrFtd��t| �d��}| �d� |d @ r�t| �d��d t| �d�� }| � |� |d @ r�| �d�}|r�|t kr�q�q�|d @ r�| �d�}|r�|t kr�q�q�|d@ r�| �d� d S )z:Initialize for reading a gzip compressed fileobj. r� r$ s ��not a gzip filer# � z unsupported compression method� � rB rA � N) r� � decompressobjr� r� r� � _Stream__readr r �ordr^ r2 )r� �flagZxlenr3 r7 r7 r8 r� � s* z_Stream._init_read_gzc C s | j S )z3Return the stream's file pointer position. )r� r� r7 r7 r8 �tell� s z _Stream.tellr c C sX || j dkrJt|| j | j�\}}t|�D ]}| �| j� q,| �|� ntd��| j S )zXSet the stream's file pointer to pos. Negative seeking is forbidden. r z seeking backwards is not allowed)r� r] rc rG r^ r )r� r� rd re rM r7 r7 r8 �seek� s z _Stream.seekc C s | � |�}| jt|�7 _|S )z5Return the next size number of bytes from the stream.)�_readr� r1 )r� r' rX r7 r7 r8 r^ s z _Stream.readc C s� | j dkr| �|�S t| j�}| jg}||k r�| jrB| j}d| _n| j�| j�}|sVq�z| j� |�}W n | j k r� t d��Y nX |� |� |t|�7 }q&d� |�}||d� | _|d|� S )z+Return size bytes from the stream. r� r� zinvalid compressed dataN)r� r� r1 r� rX r� r^ rc r� � decompressrb r �append�join�r� r' �c�trX r7 r7 r8 r� s( z _Stream._readc C sj t | j�}| jg}||k rF| j�| j�}|s.qF|�|� |t |�7 }qd�|�}||d� | _|d|� S )zsReturn size bytes from stream. If internal buffer is empty, read another block from the stream. r� N)r1 rX r� r^ rc r� r� r� r7 r7 r8 Z__read& s z_Stream.__readN)r )rp rq rr rs r� r� r� r_ r� r� r� r� r� r^ r� r� r7 r7 r7 r8 r� G 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 r� )r� r^ � BLOCKSIZErX )r� r� r7 r7 r8 r� < s z_StreamProxy.__init__c C s | j j| _| jS r� )r� r^ rX r� r7 r7 r8 r^ @ 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� )rX � startswithr� r7 r7 r8 r� D s $ z_StreamProxy.getcomptypec C s | j �� d S r� )r� r� r� r7 r7 r8 r� N s z_StreamProxy.closeN)rp rq rr rs r� r^ r� r� r7 r7 r7 r8 r� 7 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}|D ]L\}}||kr|| j� d||d f� | j� d||| |f� ||7 }|| }qX|| jk r�| j� d|| jd f� d S )Nr r� FT) r� �offsetr' �positionrj r� r� � map_index�mapr� )r� r� r� r' Z blockinfoZlastposZrealposr7 r7 r8 r� [ s( z_FileInFile.__init__c C s d S r� r7 r� r7 r7 r8 r� t s z_FileInFile.flushc C s dS �NTr7 r� r7 r7 r8 �readablew s z_FileInFile.readablec C s dS )NFr7 r� r7 r7 r8 �writablez s z_FileInFile.writablec C s | j �� S r� )r� �seekabler� r7 r7 r8 r� } s z_FileInFile.seekablec C s | j S )z*Return the current file position. )r� r� r7 r7 r8 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_ENDrJ )r� r� �whencer7 r7 r8 r� � s z_FileInFile.seekc C s |dkr| j | j }nt|| j | j �}d}|dk�r| j| j \}}}}|| j kr`|k rhq� nq�q6| jd7 _| jt| j�kr6d| _q6t||| j �}|r�| j�|| j| � | j�|�}t|�|kr�t d��||7 }n |t | 7 }||8 }| j|7 _q,|S )z!Read data from the file. Nr� r r# rZ ) r' r� r� r� r� r1 r� r� r^ r r2 ) r� r' rX �data�start�stopr� r4 rf r7 r7 r8 r^ � s, z_FileInFile.readc C s& | � t|��}||d t|��< t|�S r� )r^ r1 )r� rf rX r7 r7 r8 �readinto� s z_FileInFile.readintoc C s d| _ d S r� )r� r� r7 r7 r8 r� � s z_FileInFile.close)N)N)rp rq rr rs r� r� r� r� r� r� r� r� r� r^ r� r� r7 r7 r7 r8 r� U s r� c s e Zd Z� fdd�Z� ZS )� ExFileObjectc s& t |j|j|j|j�}t� �|� d S r� )r� r� � offset_datar' �sparse�superr� )r� �tarfile�tarinfor� �� __class__r7 r8 r� � s �zExFileObject.__init__)rp rq rr r� � __classcell__r7 r7 r� r8 r� � s r� c @ s� e Zd ZdZedddddddd d d d d ddddddddd�Zdedd�Zedd� �Zej dd� �Zedd � �Z e j d d � �Z d d � Z d d!� Z e ed"fd#d$�Zd%d&� Zd'd(� Zd)d*� Zed+d,� �Zd-d.� Zed/d0� �Zed1d2� �Zed3d4� �Zed5d6� �Zed7d8� �Zed9d:� �Z d;d<� Z d=d>� Z d?d@� Z dAdB� Z dCdD� Z!dEdF� Z"dGdH� Z#dIdJ� Z$dKdL� Z%dMdN� Z&dOdP� Z'dQdR� Z(dSdT� Z)dUdV� Z*dWdX� Z+dYdZ� Z,d[d\� Z-d]d^� Z.d_d`� Z/dadb� Z0dcdd� Z1dS )fr 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. zName of the archive member.zPermission bits.z6User ID of the user who originally stored this member.z7Group ID of the user who originally stored this member.zSize in bytes.zTime of last modification.zHeader checksum.z�File type. type is usually one of these constants: REGTYPE, AREGTYPE, LNKTYPE, SYMTYPE, DIRTYPE, FIFOTYPE, CONTTYPE, CHRTYPE, BLKTYPE, GNUTYPE_SPARSE.zcName of the target file name, which is only present in TarInfo objects of type LNKTYPE and SYMTYPE.z User name.z Group name.zDevice major number.zDevice minor number.zThe tar header starts here.z The file's data starts here.zMA dictionary containing key-value pairs of an associated pax extended header.zSparse member information.N)r� r� 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� r� r) r* r' r( r� �REGTYPEr� r� r+ r, r� r� r� r� r� r� �r� r� r7 r7 r8 r� � s" zTarInfo.__init__c C s | j S )z(In pax headers, "name" is called "path".�r� r� r7 r7 r8 r% s z TarInfo.pathc C s || _ d S r� r� r� r7 r7 r8 r% s c C s | j S )z0In pax headers, "linkname" is called "linkpath".�r� r� r7 r7 r8 r& s zTarInfo.linkpathc C s || _ d S r� r� )r� r� r7 r7 r8 r& s c C s d| j j| jt| �f S )Nz<%s %r at %#x>)r� rp r� �idr� r7 r7 r8 �__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. � ) r� r� r) r* r' r( r� r� r� r+ r, r� r� r� r� �/)r� r� r) r* r' r( r� r� r� r+ r, r� r� �DIRTYPEr� )r� �infor7 r7 r8 �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_headerrJ )r� rS r5 r6 r r7 r7 r8 �tobuf0 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_MAGICr1 r0 � LENGTH_LINKrJ � LENGTH_NAME�_posix_split_name�_create_headerr )r� r r5 r6 r7 r7 r8 r > 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_MAGICr1 r0 r �_create_gnu_long_header�GNUTYPE_LONGLINKr �GNUTYPE_LONGNAMEr r )r� r r5 r6 rX r7 r7 r8 r K s zTarInfo.create_gnu_headerc C s* t |d< | j�� }ddtfddtfddfD ]j\}}}||kr>q*z|| �dd � W n$ tk rv || ||< Y q*Y nX t|| �|kr*|| ||< q*d D ]`\}}||kr�d ||< q�|| }d | kr�d |d k r�n n t|t �r�t |�||< d ||< q�|�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 rC rD ))r) rA )r* rA )r' � )r( r r rA r# r� r� )r r� �copyr r r0 �UnicodeEncodeErrorr1 � isinstance�float�str�_create_pax_generic_header�XHDTYPEr r ) r� r r5 r� r� Zhnamer4 rR �valrX r7 r7 r8 r Y s8 � * zTarInfo.create_pax_headerc C s | � |td�S )zAReturn the object as a pax global header block sequence. r/ )r �XGLTYPE)�clsr� r7 r7 r8 �create_pax_global_header� s z TarInfo.create_pax_global_headerc C s~ |� d�}tdt|��D ]T}d�|d|� �}d�||d� �}t|�||��tkrt|�||��tkr qvqtd��||fS )zUSplit a name longer than 100 chars into a prefix and a name part. r r# Nzname is too long)�splitrG r1 r� r0 � LENGTH_PREFIXr rJ )r� r� r5 r6 Z componentsrM r r7 r7 r8 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 r� r r rA r) r* r' r r( s r� r� r r+ r r, r� r� r r z%dsr� Ni����z%06o rC i����) r9 �getrT r� r rV r� r� r� rY rO )r rS r5 r6 �partsrX r� r7 r7 r8 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 )r] r1 r� r2 )�payloadrd re r7 r7 r8 �_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 )r0 r2 r1 r r r r' )r r� r� r5 r6 r r7 r7 r8 r � s �z TarInfo._create_gnu_long_headerc C s2 d}|� � D ]8\}}z|�dd� W q tk rB d}Y qFY q X q d}|rV|d7 }|� � D ]�\}}|�d�}|r�|�|d�}n |�d�}t|�t|� d }d } } |tt| �� } | | kr�q�| } q�|tt| �d �d | d | d 7 }q^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. Fr/ rD Tr� s 21 hdrcharset=BINARY r r� r rC � � =� z././@PaxHeaderr� r� r' r r� ) �itemsr0 r r1 r rO r r r r' ) r r� r� r5 �binary�keyword�value�records�lrL r= r r7 r7 r8 r � s< ( �z"TarInfo._create_pax_generic_headerc C sv 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�r8d}g }t d�D ]l} z0t|||d � �} t||d |d � �} W n t k �r� Y �qY nX |� | | f� |d7 }�q�t |d �} t|dd � �} || | f|_ |�!� �rP|j �"d�|_ |�rr|jt#k�rr|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� )$r1 rt r� ru �countr2 rv rN rY rK r> r� r� r) r* r' r( r� r� r� r+ r, r� r� �AREGTYPEr� r �GNUTYPE_SPARSErG rJ r� �boolr� �isdir�rstrip� GNU_TYPES)r rX r5 r6 r� �objr r� �structsrM r� �numbytes� isextended�origsizer7 r7 r8 �frombuf sZ zTarInfo.frombufc C s8 |j �t�}| �||j|j�}|j �� t |_|�|�S )zOReturn the next TarInfo object from TarFile object tarfile. ) r� r^ r� rE r5 r6 r� r� � _proc_member)r r� rX r@ r7 r7 r8 � fromtarfileI s zTarInfo.fromtarfilec C sT | j ttfkr| �|�S | j tkr,| �|�S | j tttfkrF| � |�S | � |�S dS )zYChoose the right processing method depending on the type and call it. N) r� r r � _proc_gnulongr; � _proc_sparser r �SOLARIS_XHDTYPE� _proc_pax� _proc_builtin)r� r� r7 r7 r8 rF ^ s zTarInfo._proc_memberc C sR |j �� | _| j}| �� s$| 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� r5 r6 )r� r� r� r7 r7 r8 rL k s zTarInfo._proc_builtinc C s� |j �| �| j��}z| �|�}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. � missing or bad subsequent header)r� r^ rO r' rG r rw r� r� r r> r5 r6 r� r r� )r� r� rX �nextr7 r7 r8 rH | s zTarInfo._proc_gnulongc C s� | j \}}}| ` |r�|j�t�}d}td�D ]n}z0t|||d � �}t||d |d � �} W n tk rz Y q�Y nX |r�| r�|�|| f� |d7 }q,t|d �}q|| _ |j� � | _ | j | � | j � |_|| _ | S )z8Process a GNU sparse header plus extra headers. r � r r8 i� )r� r� r^ r� rG rN rJ r� r< r� r� r� rO r' r� ) r� r� rA rC rD rX r� rM r� rB r7 r7 r8 rI � s( zTarInfo._proc_sparsec C s. |j �| �| j��}| jtkr&|j}n |j�� }t� d|�}|dk rX|� d�� d�|d< |� d�}|dkrr|j }nd}t�d�}d}|�||�}|s��q6|�� \} } t| �} | dkr�td ��||�d �d |�d�| d � } | �| dd|j�} | tk�r| �| ||j |j�} n| �| dd|j�} | || < || 7 }q�z| �|�} W n tk �rb 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# r/ � hdrcharsetZBINARYs (\d+) ([^=]+)=r rF r$ rQ �GNU.sparse.map�GNU.sparse.sizezGNU.sparse.major�1zGNU.sparse.minorrE r' )%r� r^ rO r' r� r r� r �re�search�groupr< r$ r5 �compile�match�groupsrH rK ri r� �_decode_pax_fieldr6 �PAX_NAME_FIELDSrG r rw �_proc_gnusparse_01�_proc_gnusparse_00�_proc_gnusparse_10r rJ rP r� r� rM rN )r� r� rX r� r\ rT r5 Zregexr� r4 r- r. rR r� r7 r7 r8 rK � sh $ � � � zTarInfo._proc_paxc C sh g }t �d|�D ]}|�t|�d��� qg }t �d|�D ]}|�t|�d��� q: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)rX �finditerr� rH rZ �list�zipr� )r� rR r� rX Zoffsetsr\ rB r7 r7 r8 ra 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 r7 )rH )�.0�xr7 r7 r8 � <listcomp>$ s z.TarInfo._proc_gnusparse_01.<locals>.<listcomp>rU �,Nr$ r# )r" rd re r� )r� rR r� r� r7 r7 r8 r` ! s zTarInfo._proc_gnusparse_01c C s� d}g }|j �t�}|�dd�\}}t|�}t|�|d k rtd|krT||j �t�7 }|�dd�\}}|�t|�� q,|j �� |_t t |ddd� |ddd� ��|_ dS )z?Process a GNU tar extended sparse header, version 1.0. Nr* r# r$ ) r� r^ r� r" rH r1 r� r� r� rd re r� )r� rR r� r� �fieldsr� rX Znumberr7 r7 r8 rb ' s zTarInfo._proc_gnusparse_10c C s� |� � D ]�\}}|dkr&t| d|� q|dkr@t| dt|�� q|dkrZt| dt|�� q|tkr|tkr�zt| |�}W n tk r� d}Y nX |dkr�|�d�}t| ||� q|�� | _dS ) zoReplace fields with supplemental information from a previous pax extended or global header. zGNU.sparse.namer% rV r' zGNU.sparse.realsizer r N) r+ �setattrrH � PAX_FIELDS�PAX_NUMBER_FIELDSrJ r> r r� )r� r� r5 r6 r- r. r7 r7 r8 rP 7 s" zTarInfo._apply_pax_infoc C s4 z|� |d�W S tk r. |� ||� Y S X dS )z1Decode a single field from a pax record. rD N)r< �UnicodeDecodeError)r� r. r5 Zfallback_encodingZfallback_errorsr7 r7 r8 r^ N 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# )r] r� )r� r9 rd re r7 r7 r8 rO V s zTarInfo._blockc C s | j tkS �z4Return True if the Tarinfo object is a regular file.)r� � REGULAR_TYPESr� r7 r7 r8 rM _ s z TarInfo.isregc C s | � � S ro )rM r� r7 r7 r8 �isfilec s zTarInfo.isfilec C s | j tkS )z!Return True if it is a directory.)r� r r� r7 r7 r8 r= g s z TarInfo.isdirc C s | j tkS )z%Return True if it is a symbolic link.)r� �SYMTYPEr� r7 r7 r8 �issymk s z TarInfo.issymc C s | j tkS )z!Return True if it is a hard link.)r� �LNKTYPEr� r7 r7 r8 �islnko s z TarInfo.islnkc C s | j tkS )z(Return True if it is a character device.)r� �CHRTYPEr� r7 r7 r8 �ischrs s z TarInfo.ischrc C s | j tkS )z$Return True if it is a block device.)r� �BLKTYPEr� r7 r7 r8 �isblkw s z TarInfo.isblkc C s | j tkS )z Return True if it is a FIFO.)r� �FIFOTYPEr� r7 r7 r8 �isfifo{ s zTarInfo.isfifoc C s | j d k S r� )r� r� r7 r7 r8 �issparse s zTarInfo.issparsec C s | j tttfkS )zCReturn True if it is one of character device, block device or FIFO.)r� rv rx rz r� r7 r7 r8 �isdev� s z TarInfo.isdev)r� )2rp rq rr rs �dict� __slots__r� �propertyr% �setterr& r� r r r r r r r � classmethodr! r � staticmethodr r' r r rE rG rF rL rH rI rK ra r` rb rP r^ rO rM rq r= rs ru rw ry r{ r| r} r7 r7 r7 r8 r � s� � 1 2 > h c @ s� e Zd ZdZdZdZdZdZeZ e Z dZ e ZeZd\dd �Zedddefd d ��Zed]d d ��Zed^dd��Zed_dd��Zed`dd��Zddddd�Zdd� Zd d � Zd d � Z d d!� Z dad"d#�Z dbdd%�d&d'�Z dcdd(�d)d*�Z ddd+d,�Z!dedd.�d/d0�Z"dfdd.�d2d3�Z#d4d5� Z$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# Nrz 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 | _ z�| jdk�r�d | _ | �!� | _ | jdk�r2| j�"| j � z | j�#| �}| j�$|� W nX t%k �r� | j�"| j � Y �q2Y n0 t&k �r, } zt't |���W 5 d }~X Y nX �q�| 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�wb�xb�rz �ar{ rg �!mode must be 'r', 'a', 'w' or 'x'r� r{ FNr� r� Trz �r� r{ rg )-rJ r� �_moder} r% �exists� bltn_openr� r� r r� r rO �abspathr� rS r� � dereference� ignore_zerosr5 r6 r r� �debug� errorlevel� copybufsizer� �members�_loadedr� r� �inodes� firstmemberrR r� rG r� rv r r r! r r_ r1 r� )r� r� r� r� rS r� r� r� r5 r6 r� r� r� r� Zmodes�erX r7 r7 r8 r� � s� � " zTarFile.__init__c s� |s|st d��|dkr�� fdd�}t� j|d�D ]j}t� � j| �}|dk rV|�� } z||d|f|�W S ttfk r� |dk r�|�| � Y q2Y q2X q2td���nd |k�r |�d d �\} }| p�d} |p�d }|� jkr�t� � j| �}n td | ��||| |f|�S d |k�r�|�d d �\} }| �p.d} |�p8d }| dk�rLt d��t || |||�} z� || | 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)rz �r:*c s � j | dkS )N�taropen)� OPEN_METH)r� �r r7 r8 �not_compressed: s z$TarFile.open.<locals>.not_compressed��keyNrz z%file could not be opened successfully�:r# r� r� �|ry zmode must be 'r' or 'w'Fr� zundiscernible mode) rJ �sortedr� rj r� r r r� r" r� r� r� r� ) r r� r� r� rc �kwargsr� r� �funcZ saved_pos�filemode�streamr� r7 r� r8 r sP % z TarFile.openc K s |dkrt d��| |||f|�S )zCOpen uncompressed tar archive name for reading or writing. r� r� )rJ )r r� r� r� r� r7 r7 r8 r� k s zTarFile.taropenr� c K s� |dkrt d��zddlm} W n tk r< td��Y nX z|||d ||�}W n. tk r� |dk r||dkr|td ��� Y nX z| 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. �rz r{ rg � mode must be 'r', 'w' or 'x'r )�GzipFilez gzip module is not availablerf Nrz r� F) rJ �gzipr� r� r r� r r� r� r� )r r� r� r� � compresslevelr� r� r� r7 r7 r8 �gzopens s0 zTarFile.gzopenc K s� |dkrt d��zddlm} W n tk r< td��Y nX ||pF|||d�}z| 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. r� r� r )�BZ2Filer� )r� rz znot a bzip2 fileF) rJ r� r� r� r r� r� �EOFErrorr� r r� )r r� r� r� r� r� r� r� r7 r7 r8 �bz2open� s& zTarFile.bz2openc K s� |dkrt d��zddlm}m} W n tk r@ td��Y nX ||pJ|||d�}z| 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. r� r� r )�LZMAFiler� r� )�presetrz znot an lzma fileF) rJ r� r� r� r� r r� r� r� r r� ) r r� r� r� r� r� r� r� r� r7 r7 r8 �xzopen� s& zTarFile.xzopenr� 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 5 | js�| j�� X dS )zlClose the TarFile. In write-mode, two finishing zero blocks are appended to the archive. NTr� r$ r ) r� r� r� r� r� r_ r2 r� r� r] � RECORDSIZE)r� rd re r7 r7 r8 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� r7 r7 r8 � 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. )�_checkr� �_loadr� r� r7 r7 r8 � 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 r7 r� )rf r� r7 r7 r8 rh s z$TarFile.getnames.<locals>.<listcomp>)r� r� r7 r7 r8 �getnames s zTarFile.getnamesc C s^ | � d� |dk r|j}|dkr$|}tj�|�\}}|�tjd�}|�d�}| �� }| |_ |dkr�| j stt� |�}q�t� |�}nt� |�� �}d}|j}t �|�r�|j|jf} | j s�|jdkr�| | jkr�|| j| kr�t} | j| }nt} | d r�|| j| < nht �|��rt} nVt �|��r"t} nDt �|��r>t } t� |�}n(t � |��rPt } nt � |��rbt!} ndS ||_||_"|j#|_$|j%|_&| tk�r�|j'|_(nd|_(|j)|_*| |_+||_,t-�r�zt-�.|j$�d |_/W n t0k �r� Y nX t1�rzt1�2|j&�d |_3W n t0k �r Y nX | t t!fk�rZt4td��rZt4td��rZt�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 r� r# r �major�minor):r� r� r} r% � splitdriver� �sep�lstripr� r� r� �lstat�stat�fstat�fileno�st_mode�S_ISREG�st_ino�st_dev�st_nlinkr� rt r� �S_ISDIRr �S_ISFIFOrz �S_ISLNKrr �readlink�S_ISCHRrv �S_ISBLKrx r� �st_uidr) �st_gidr* �st_sizer' �st_mtimer( r� r� �pwd�getpwuidr+ r� �grp�getgrgidr, r� r� �st_rdevr� r� r� ) r� r� �arcnamer� Zdrvr� Zstatresr� Zstmd�inoder� r7 r7 r8 � gettarinfo s� � � zTarFile.gettarinfoT)r� c C s� | � � |dkr| }|D ]�}|r�tt�|j�� td|jp>|j|jpH|jf � |� � s`|� � rztdd|j |j f � ntd|j � tdt�|j�dd� � t|j|�� r�dnd � |r�|�� r�td |j � |�� r�td |j � t� qdS ) 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� rn r� r� r� r+ r) r, r* rw ry r� r� r' r� � localtimer( r� r= rs r� ru rm )r� �verboser� r� r7 r7 r8 rd j s0 ���z TarFile.list��filterc C s6 | � d� |dkr|}| jdk rFtj�|�| jkrF| �dd| � dS | �d|� | �||�}|dkrz| �dd| � dS |dk r�||�}|dkr�| �dd| � dS |�� r�t|d��}| � ||� W 5 Q R X n`|� � �r(| � |� |�r2t t� |��D ]*}| j tj�||�tj�||�||d � q�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% r� �_dbgr� rM r� �addfiler= r� �listdir�addr� )r� r� r� � recursiver� r� �fr7 r7 r8 r� � s8 � 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)rc r r# )r� r r rS r5 r6 r� r_ r� r1 r� r\ r' r] r� r2 r� r� )r� r� r� rX rc rd re r7 r7 r8 r� � s zTarFile.addfile�.�� numeric_ownerc C s� g }|dkr| }|D ]>}|� � r:|�|� t�|�}d|_| j|||� � |d� q|jdd� d� |�� |D ]�}tj� ||j �}z,| j |||d� | � ||� | � ||� W qp tk r� } z"| jdkrЂ n| �dd | � W 5 d}~X Y qpX qpdS ) 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. N� �� set_attrsr� c S s | j S r� r� )r� r7 r7 r8 �<lambda>� r� z$TarFile.extractall.<locals>.<lambda>r� r� r# � tarfile: %s)r= r� r r� �extract�sort�reverser} r% r� r� �chown�utime�chmodr r� r� )r� r% r� r� Z directoriesr� �dirpathr� r7 r7 r8 � extractall� s. � zTarFile.extractallr� c C s | � d� t|t�r | �|�}n|}|�� r>tj�||j�|_ z"| j |tj�||j �||d� W n� t k r� } zH| j dkr�� n6|jdkr�| �dd|j � n| �dd|j|jf � W 5 d}~X Y nB tk �r } z"| j dkr� n| �dd| � W 5 d}~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. rz r� r Nr# r� ztarfile: %s %r)r� r r r� ru r} r% r� r� r� �_extract_memberr� r� r� �filenamer� �strerrorr )r� �memberr% r� r� r� r� r7 r7 r8 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. rz z'cannot extract (sym)link as file objectN)r� r r r� rM r� rN � fileobjectru rs r� r� r � extractfile�_find_link_target)r� r� r� r7 r7 r8 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% �dirnamer� �makedirsru rs r� r� r� rM �makefiler= �makedirr{ �makefiforw ry �makedev�makelinkr� rN � makeunknownr� r� r� )r� r� � targetpathr� r� Z upperdirsr7 r7 r8 r� C s4 zTarFile._extract_memberc C s* zt �|d� W n tk r$ Y nX dS )z,Make a directory called targetpath. r� N)r} �mkdir�FileExistsError�r� r� r r7 r7 r8 r t s zTarFile.makedirc C s� | j }|�|j� | j}t|d��b}|jdk rn|jD ]"\}}|�|� t|||t|� q4|�|j� |� � nt|||jt|� W 5 Q R X dS )z'Make a file called targetpath. r� N) r� r� r� r� r� r� r\ r r' �truncate)r� r� r �sourcerc �targetr� r' r7 r7 r8 r� ~ 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 r7 r7 r8 r � 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 r7 r7 r8 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 r� ry r� �S_IFBLK�S_IFCHRr r r� r� )r� r� r r� r7 r7 r8 r � s �zTarFile.makedevc C s� zL|� � rt�|j|� n0tj�|j�r8t�|j|� n| �| � |�|� W nH t k r� z| �| � |�|� 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) rs r} �symlinkr� r% r� r� �linkr� r� �symlink_exceptionr� r r r7 r7 r8 r � s � �zTarFile.makelinkc C s� t td�r�t�� dkr�|j}|j}|s�ztr<t�|j�d }W n tk rR Y nX zt rjt � |j �d }W n tk r� Y nX z4|� � 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� �getgrnamr, r� r� �getpwnamr+ rs r r� r� r )r� r� r r� �g�ur7 r7 r8 r� � s( z TarFile.chownc C s4 zt �||j� W n tk r. td��Y nX dS )zASet file permissions of targetpath according to tarinfo. zcould not change modeN)r} r� r� r� r r r7 r7 r8 r� � s z TarFile.chmodc C sH t td�sdS zt�||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 r7 r7 r8 r� � s z TarFile.utimec C s� | � d� | jdk r$| j}d| _|S | j| j�� krZ| j�| jd � | j�d�sZtd��d}z| j� | �}W �q� t k r� } z6| j r�| � dd| j|f � | jt 7 _W Y �q^W 5 d}~X Y �q� tk �r6 } zR| j �r| � dd| j|f � | jt 7 _W Y � q^n| jdk�r&tt|���W 5 d}~X Y n� tk �r^ | jdk�rZtd��Y nj tk �r� } z | jdk�r�tt|���W 5 d}~X Y n0 tk �r� } ztt|���W 5 d}~X Y nX �q�q^|dk �r�| j�|� nd | _|S ) z�Return the next member of the archive as a TarInfo object, when TarFile is opened for reading. Return None if there is no more available. ZraNr# rZ r$ z0x%X: %sr z empty fileT)r� r� r� r� r� r� r^ r r� rG rv r� r� r� rK r rt ru rw r� r� r� )r� �mr� r� r7 r7 r8 rR � sJ z TarFile.nextc C sn | � � }|dk r"|d|�|�� }|r2tj�|�}t|�D ].}|rRtj�|j�}n|j}||kr:| S q: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� � normalizer� r� � member_namer7 r7 r8 r� * s zTarFile._getmemberc C s | � � }|dkr qq d| _dS )zWRead through the entire archive file and look for readable members. NT)rR r� )r� r� r7 r7 r8 r� A 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 r� )r� r� r7 r7 r8 r� K 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) rs r� r� r} r% r� r� r� r� r� )r� r� r� �limitr� r7 r7 r8 r� T s zTarFile._find_link_targetc c s� | j r| jE dH dS d}| jdk r:| �� }|d7 }|V |t| j�k rT| j| }n"| j sr| �� }|svd| _ dS ndS |d7 }|V q:dS )z$Provide an iterator object. Nr r# T)r� r� r� rR r1 )r� r r� r7 r7 r8 �__iter__g s$ zTarFile.__iter__c C s || j krt|tjd� dS )z.Write debugging output to sys.stderr. ��fileN)r� rm rk �stderr)r� �level�msgr7 r7 r8 r� � s z TarFile._dbgc C s | � � | S r� )r� r� r7 r7 r8 � __enter__� s zTarFile.__enter__c C s, |d kr| � � n| js"| j� � d| _d S r� )r� r� r� r� )r� r� r. � tracebackr7 r7 r8 �__exit__� s zTarFile.__exit__) Nrz NNNNNNr NNNN)rz N)rz Nr� )rz Nr� )rz NN)NNN)T)NT)N)r� N)r� T)TF)NF)N)8rp rq rr rs r� r� r� r� r rS r r5 r6 r r� r� r� r� r� r� r r� r� r� r� r� r� r� r� r� r� rd r� r� r� r� r� r� r r� r r r r r� r� r� rR r� r� r� r� r r� r& r( r7 r7 r7 r8 r � s� � oZ � c 3 (& � 1 6 c C s2 zt | �}|�� W dS tk r, Y dS X dS )zfReturn True if name points to a tar archive that we are able to handle, else return False. TFN)r r� r )r� r� r7 r7 r8 r � s c C s� dd l } d}| j|d�}|jdddddd � |jd d �}|jd d ddd� |jdddddd� |jdddddd� |jdd dd d� |�� }|jd k �r|j}t|�r�t|d �� }|�� t |�� t j d � W 5 Q R X |j r�t d � |�� n|�d!d"� |�� �n�|jd k �r\|j}t|��rFt�|d#��}|j|j d$� W 5 Q R X n|�d!d"� |�� �nr|jd k �r,t|j�d!k�r�|jd }tj}n,t|j�d%k�r�|j\}}n|�d!|�� � t|��rt�|d#��}|j|d&� W 5 Q R X |j �r*|d'k�rd(� |�} n d)� ||�} t | � n|�d!d"� |�� n�|jd k �r�|j�d�} tj�| �\} } d*d*d+d+d,d,d,d,d-�} | | k�r�d.| | nd/}|j}t�| |�� }|D ]}|�|� �q�W 5 Q R X |j �r�t d0� | �� d S )1Nr z3A simple command-line interface for tarfile module.)� descriptionz-vz --verbose� store_trueFzVerbose output)�action�default�helpT)�requiredz-lz--list� <tarfile>zShow listing of a tarfile)�metavarr- z-ez --extract�+)r/ z <output_dir>z Extract tarfile into target dir)�nargsr0 r- z-cz--create)z<name>z<file>zCreate tarfile from sourcesz-tz--testzTest if a tarfile is validrz r! z{!r} is a tar archive.r# z{!r} is not a tar archive. r� )r� r$ )r% r� z{!r} file is extracted.z+{!r} file is extracted into {!r} directory.r� r� r� )r� z.tgzz.xzz.txzz.bz2z.tbzz.tbz2z.tb2zw:r{ z{!r} file created.) �argparse�ArgumentParser� add_argument� add_mutually_exclusive_group� parse_args�testr r r� rm rk r# r� rS �exitrd r r� r1 r} �curdir� format_helpr� Zcreate�popr% �splitextr� )r3 r) �parserrZ �argsr` r� Ztfr: r% Ztar_name�_�extZ compressionsZtar_modeZ tar_files� file_namer7 r7 r8 �main� s� � � � � � � � rC �__main__)^rs �version� __author__� __credits__�builtinsr r� rk r} r� r[ r� r� rV r rX r� r� r� �AttributeError�NotImplementedErrorr r� � NameError�__all__r2 r� r� r r r r r# r� r: rt rr rv rx r rz ZCONTTYPEr r r; r r rJ r r r r rN rp r? rl r_ r rH rm r� r �getfilesystemencodingr9 r> rN rT rY r\ rn � Exceptionr r r r r r rt ru rv rK rw rx r� �objectr� r� �BufferedReaderr� r r r rC rp r7 r7 r7 r8 �<module> s � � �� � q h D W
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