Information System : Linux apprendre2 3.10.0-1160.119.1.el7.x86_64 #1 SMP Tue Jun 4 14:43:51 UTC 2024 x86_64
Disable Function : NONE
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Read and write ZIP files.
XXX references to utf-8 need further investigation.
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BadZipFile
BadZipfileerror
ZIP_STORED ZIP_DEFLATED ZIP_BZIP2ZIP_LZMA
is_zipfileZipInfoZipFile PyZipFile LargeZipFilec @ s e Zd ZdS )r N)__name__
__module__ __qualname__ r r /usr/lib64/python3.6/zipfile.pyr + s c @ s e Zd ZdZdS )r
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Raised when writing a zipfile, the zipfile requires ZIP64 extensions
and those extensions are disabled.
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z>Class with attributes describing each file in the ZIP archive.
orig_filenamer? date_time
compress_typer_ r1
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compress_size file_size _raw_timeNoName r r c C s || _ |jtd}|dkr(|d| }tjdkrJtj|krJ|jtjd}|| _|| _|d dk rjtdt | _
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jdkrd| _nd| _t| _t| _d| _d| _d| _d| _d| _d S )Nr /i z+ZIP does not support timestamps before 1980r+ Zwin32r )r` findchrossepreplacer? ra
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zZipInfo.__init__c C s d| j j| jf g}| jtkr8|jdtj| j| j | jd? }| jd@ }|rd|jdt j
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r8 | j jd| jdB fS X d S )Nasciizutf-8i )r? encoderf UnicodeEncodeError)r{ r r r r s z ZipInfo._encodeFilenameFlagsc C s( | j }tj}xt|dkr"|d|d d \}}|dkr|dkrZ|d|dd }nV|dkrv|d|dd }n:|d
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}| jdkr|| | _|d7 }| jdkr|| | _|d7 }| jdkr| j}|| | _|d7 }||d d }qW d S )Nr z |_|rd|_| jdO _n|j|_|S )a_ Construct an appropriate ZipInfo for a file on the filesystem.
filename should be the path to a file or directory on the filesystem.
arcname is the name which it will have within the archive (by default,
this will be the same as filename, but without a drive letter and with
leading path separators removed).
r r" Nr rq i r )
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zZipInfo.from_filec C s | j d dkS )z2Return True if this archive member is a directory.r rq )r? )r{ r r r r s zZipInfo.is_dir)r` r? ra rb r_ r1 rc rT rd re rf rg rh ri rj rk rl rm rn rp r r r r r )ro r )N)N)
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_ZipDecryptera Class to handle decryption of files stored within a ZIP archive.
ZIP supports a password-based form of encryption. Even though known
plaintext attacks have been found against it, it is still useful
to be able to get data out of such a file.
Usage:
zd = _ZipDecrypter(mypwd)
plain_char = zd(cypher_char)
plain_text = map(zd, cypher_text)
c C sh d} dgd }xTt dD ]H}|}x6t dD ]*}|d@ rH|d? d@ | A }q*|d? d@ }q*W |||< qW |S )zGenerate a CRC-32 table.
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internal keys. We noticed that a direct implementation is faster than
relying on binascii.crc32().
l q[ r r r i)range)Zpolytabler4 crcr5 r r r _GenerateCRCTable# s
z _ZipDecrypter._GenerateCRCTableNc C s |d? d@ | j ||A d@ A S )z(Compute the CRC32 primitive on one byte.r i )crctable)r{ Zchr r r r _crc327 s z_ZipDecrypter._crc32c C sB t jd krt j t _d| _d| _d| _x|D ]}| j| q,W d S )NixV4igE#ixV4)r r r key0key1key2 _UpdateKeys)r{ pwdpr r r r| ; s
z_ZipDecrypter.__init__c C sX | j || j| _| j| jd@ d@ | _| jd d d@ | _| j | jd? d@ | j| _d S )Nr l ir r )r r r r )r{ cr r r r D s z_ZipDecrypter._UpdateKeysc C s> t |tst| jdB }|||dA d? d@ A }| j| |S )zDecrypt a single character.r r r r )r intAssertionErrorr r )r{ r kr r r __call__J s
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r r r r r r r r| r r r r r r r s r c @ s, e Zd Zdd Zdd Zdd Zdd Zd S )
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d | _ d S )N)_comp)r{ r r r r| U s zLZMACompressor.__init__c C sF t jdt ji}t jt jt jt j|gd| _tjdddt || S )Nid)filtersz| j jd| jd }|dkr>| j | j| }|| _|S tjj| |S )zrRead and return a line from the stream.
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r )r rr r ioBufferedIOBasereadline)r{ limitr4 liner r r r 1 s zZipExtFile.readlinec C sr |t | j| j kr\| j|}t || jkrJ|| j| jd | _d| _n| jt |8 _| j| j| jd S )z6Returns buffered bytes without advancing the position.Nr i )r. r r r; )r{ r chunkr r r peekA s
zZipExtFile.peekc C s dS )NTr )r{ r r r readableN s zZipExtFile.readablec C s |dks|dk rL| j | jd }d| _ d| _x| jsF|| j| j7 }q.W |S || j }|t| j k r~| j | j| }|| _|S |t| j }| j | jd }d| _ d| _x^|dko| j r| j|}|t|k r|| _ || _||d| 7 }P ||7 }|t|8 }qW |S )zRead and return up to n bytes.
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_file_size_compress_size_crc)r{ zfr r r r r r| s z_ZipWriteFile.__init__c C s | j jS )N)r+ r9 )r{ r r r r s z_ZipWriteFile._fileobjc C s dS )NTr )r{ r r r writable s z_ZipWriteFile.writablec C sf | j rtdt|}| j|7 _t|| j| _| jrV| jj|}| jt|7 _| j j
| |S )Nz I/O operation on closed file.) r rw r. r- r r/ r, r r. r r )r{ rS nbytesr r r r s z_ZipWriteFile.writec sX | j r
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z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=True)
file: Either the path to the file, or a file-like object.
If it is a path, the file will be opened and closed by ZipFile.
mode: The mode can be either read 'r', write 'w', exclusive create 'x',
or append 'a'.
compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
ZIP_BZIP2 (requires bz2) or ZIP_LZMA (requires lzma).
allowZip64: if True ZipFile will create files with ZIP64 extensions when
needed, otherwise it will raise an exception when this would
be necessary.
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zZipFile.__init__c C s | S )Nr )r{ r r r __enter__ s zZipFile.__enter__c C s | j d S )N)r )r{ typevalue tracebackr r r __exit__ s zZipFile.__exit__c C s d| j j| j jf g}| jd k rd| jr8|jd| j n| jd k rR|jd| j |jd| j n
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zZipFile.__repr__c C s | j }y t|}W n tk
r. tdY nX |s s z$ZipFile.namelist..)r5 )r{ r r r namelist s zZipFile.namelistc C s | j S )zJReturn a list of class ZipInfo instances for files in the
archive.)r5 )r{ r r r infolist s zZipFile.infolistc C sP t dd
|d x:| jD ]0}d|jdd }t d |j||jf |d qW dS ) z+Print a table of contents for the zip file.z%-46s %19s %12s File Name Modified Size)r z%d-%02d-%02d %02d:%02d:%02dNr" z
%-46s %s %12d)rj rk rl )rS r5 ra r? rm )r{ r r Zdater r r printdir s zZipFile.printdirc C s^ d}xT| j D ]J}y.| j|jd}x|j|r0q$W W dQ R X W q tk
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chunk_sizer fr r r testzip s zZipFile.testzipc C s$ | j j|}|dkr td| |S )z,Return the instance of ZipInfo given 'name'.Nz(There is no item named %r in the archive)r6 r KeyError)r{ r infor r r getinfo s
zZipFile.getinfoc C s8 |r"t |t r"tdt|j |r.|| _nd| _dS )z)Set default password for encrypted files.zpwd: expected bytes, got %sN)r r# TypeErrorrM r r )r{ r r r r setpassword s
zZipFile.setpasswordc C s | j S )z.The comment text associated with the ZIP file.)r@ )r{ r r r r_ % s zZipFile.commentc C s^ t |ts tdt|j t|tkrNdd l}|jdt dd |d t }|| _ d| _
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}|j S Q R X dS )zReturn file bytes for name.r8 N)r> r; )r{ r r r9 r r r r; 7 s z ZipFile.readF) force_zip64c sv |d krt d|r2t|t r2tdt|j |rF|dkrFt d jsTt dt|trd|}n$|dkr~t|} j|_ n
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d |krLt"d | t(|||| d S |j) Y nX dS )!au Return file-like object for 'name'.
name is a string for the file name within the ZIP file, or a ZipInfo
object.
mode should be 'r' to read a file already in the ZIP file, or 'w' to
write to a file newly added to the archive.
pwd is the password to decrypt files (only used for reading).
When writing, if the file size is not known in advance but may exceed
2 GiB, pass force_zip64 to use the ZIP64 format, which can handle large
files. If the size is known in advance, it is best to pass a ZipInfo
instance for name, with zinfo.file_size set.
r8 r9 z open() requires mode "r" or "w"zpwd: expected bytes, got %sz'pwd is only supported for reading filesz2Attempt to use ZIP archive that was already closed)ry zyCan't read from the ZIP file while there is an open writing handle on it. Close the writing handle before trying to read.r c s j S )N)r r )r{ r r l s z ZipFile.open..zTruncated file headerz Bad magic number for file header z$compressed patched data (flag bit 5)@ z strong encryption (flag bit 6)i zutf-8rQ z/File name in directory %r and header %r differ.Nz6File %r is encrypted, password required for extractionr r r r r r& zBad password for file %rT> r9 r8 )*rw r r# rs rM r r9 r
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_FH_SIGNATUREr _FH_FILENAME_LENGTH_FH_EXTRA_FIELD_LENGTHrf r r\ r` r r r r[ r$ rn rk r r )r{ r r r ry r Zzef_fileZfheaderfnameZ fname_strZ is_encryptedZzdr hZ
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z ZipFile.openc C s |r| j rtd| jr"tdt|ds2d|_d|_d|_d|_|jt kr\| jdO _| j
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zZipFile._open_to_writec C s* |dkrt j }n
t j|}| j|||S )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 ZipInfo object. You can
specify a different directory using `path'.
N)rt getcwdr _extract_member)r{ memberr r r r r extract s
zZipFile.extractc C sL |dkr| j }|dkr"tj }n
tj|}x|D ]}| j||| q2W dS )zExtract all members from the archive to the current working
directory. `path' specifies a different directory to extract to.
`members' is optional and must be a subset of the list returned
by namelist().
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zZipFile.extractallc C s^ | j }|s(d}tj|dt| }|| _ |j|}dd |j|D }|jdd |D }|S )z;Replace bad characters and remove trailing dots from parts.z:<>|"?*_c s s | ]}|j d V qdS ).N)rstrip)rf r: r r r s z1ZipFile._sanitize_windows_name..c s s | ]}|r|V qd S )Nr )rf r: r r r r s )!_windows_illegal_name_trans_tablerA maketransr. translatesplitr0 )r r pathsepr Zillegalr r r _sanitize_windows_name s
z ZipFile._sanitize_windows_namec sN t |ts| j|}|jjdtjj}tjjrB|jtjjtjj}tjj |d }dtjj
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tj| |S | j||d(}t|d}tj|| W d Q R X W d Q R X |S )
zbExtract the ZipInfo object 'member' to a physical
file on the path targetpath.
rq r r~ c 3 s | ]}| kr|V qd S )Nr )rf r: )invalid_path_partsr r r s z*ZipFile._extract_member..\)r r< N)r r
rr r? rv rt r ru r r curdirpardirr0 r r r dirnameexistsmakedirsr r mkdirr> shutil copyfileobj)r{ r Z
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zZipFile._extract_memberc C s |j | jkr(ddl}|jd|j dd | jdkr:td | jsHtd
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}|rt|d dS )z6Check for errors before writing a file to the archive.r NzDuplicate name: %rr )ru r9 r: r; z&write() requires mode 'w', 'x', or 'a'z4Attempt to write ZIP archive that was already closedz Files countZFilesizez Zipfile sizez would require ZIP64 extensions)r9 r: r; )r? r6 rw rx r rw r9 r rb r= r. r5 ZIP_FILECOUNT_LIMITrm r rj r
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zZipFile._writecheckc C s0 | j std| jr tdtj||}|j r>d|_d|_n|dk rN||_n| j |_|j r| j
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W dQ R X nCan't write to ZIP archive while an open writing handle existsr Nr TFr< r9 i r i ) r9 rw r r
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ZipFile.writec C s t |tr|jd}t |tspt|tjtj dd d}| j|_|jd dkrhd|_ | j dO _ qtd|_ n|}| j
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}|j| W dQ R X W dQ R X dS )a Write a file into the archive. The contents is 'data', which
may be either a 'str' or a 'bytes' instance; if it is a 'str',
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the name of the file in the archive.zutf-8Nr" )r? ra r rq iA r i z7Attempt to write to ZIP archive that was already closedz?Can't write to ZIP archive while an open writing handle exists.r9 )r r i Ai )r rA r r
r r r rb r? ri r9 rw r r. rm r r> r )r{ Zzinfo_or_arcnamerS rb r r r r r writestrp s.
zZipFile.writestrc C s | j dS )z2Call the "close()" method in case the user forgot.N)r )r{ r r r __del__ s zZipFile.__del__c C s| | j dkrdS | jr tdzB| jdkr\| jr\| j" | jrJ| j j| j | j W dQ R X W d| j }d| _ | j
| X dS )zOClose the file, and for mode 'w', 'x' and 'a' write the ending
records.NzvCan't close the ZIP file while there is an open writing handle on it. Close the writing handle before closing the zip.r9 r: r; )r9 r: r; ) r9 r rw r r> r rG rA r4 _write_end_recordrJ )r{ r9 r r r r s
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