=OXc @ sz d d l m Z m Z m Z m Z m Z d d l m Z m Z m Z m
Z
m Z d d l m
Z
d e
f d YZ d S( i( t linefeed_byte_valuet crlft cr_bytet
linefeed_bytet
cr_byte_value( t BytesIOt PY2t ut bt bytes_types( t ClosingContextManagert BufferedFilec B s[ e 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
d
Z d Z d Z d
Z d Z e r d Z n d Z d Z d Z d Z d Z d& d Z d& d Z d& d Z d d Z d Z d Z d Z! d Z" e# d Z$ d Z% d Z& d Z' d! d" d# Z( d$ Z) d% Z* RS(' sc
Reusable base class to implement Python-style file buffering around a
simpler stream.
i i i i i i i i@ i c C se d | _ d | _ | j | _ t | _ t | _ t | _
t | _ d | _ | _
d | _ d S( Ni ( t Nonet newlinest _flagst _DEFAULT_BUFSIZEt _bufsizeR t _wbuffert bytest _rbuffert Falset _at_trailing_crt _closedt _post _realpost _size( t self( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt __init__- s c C s | j d S( N( t close( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt __del__< s c C s | j r t d n | S( s
Returns an iterator that can be used to iterate over the lines in this
file. This iterator happens to return the file itself, since a file is
its own iterator.
:raises ValueError: if the file is closed.
s I/O operation on closed file( R t
ValueError( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt __iter__? s c C s | j t | _ d S( sN
Close the file. Future read and write operations will fail.
N( t flusht TrueR ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR K s
c C s& | j | j j t | _ d S( s{
Write out any data in the write buffer. This may do nothing if write
buffering is not turned on.
N( t
_write_allR t getvalueR ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR R s c C s | j } | s t n | S( s_
Returns the next line from the input, or raises
`~exceptions.StopIteration` when EOF is hit. Unlike Python file
objects, it's okay to mix calls to `next` and `readline`.
:raises StopIteration: when the end of the file is reached.
:returns: a line (`str`) read from the file.
( t readlinet
StopIteration( R t line( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt next\ s
c C s | j } | s t n | S( sV
Returns the next line from the input, or raises `.StopIteration` when
EOF is hit. Unlike python file objects, it's okay to mix calls to
`.next` and `.readline`.
:raises StopIteration: when the end of the file is reached.
:returns: a line (`str`) read from the file.
( R$ R% ( R R& ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt __next__k s
c C s | j | j @| j k S( s
Check if the file can be read from.
:returns:
`True` if the file can be read from. If `False`, `read` will raise
an exception.
( R t FLAG_READ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt readablez s c C s | j | j @| j k S( s
Check if the file can be written to.
:returns:
`True` if the file can be written to. If `False`, `write` will
raise an exception.
( R t
FLAG_WRITE( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt writable s c C s t S( s
Check if the file supports random access.
:returns:
`True` if the file supports random access. If `False`, `seek` will
raise an exception.
( R ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt seekable s c C s/ | j t | } | | t | *t | S( s
Read up to ``len(buff)`` bytes into :class:`bytearray` *buff* and
return the number of bytes read.
:returns:
The number of bytes read.
( t readt len( R t bufft data( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt readinto s c C sX | j r t d n | j | j @s7 t d n | d k sO | d k r| j } t | _ | j t | 7_ x t r y | j
| j } Wn t k
r d } n X| d k s t | d k r Pn | | 7} | j
t | 7_
| j t | 7_ q| W| S| t | j k r[| j | } | j | | _ | j t | 7_ | Sx t | j | k r!| t | j } | j | j @rt | j | } n y | j
| } Wn t k
rd } n X| d k st | d k rPn | j | 7_ | j
t | 7_
q^W| j | } | j | | _ | j t | 7_ | S( s
Read at most ``size`` bytes from the file (less if we hit the end of the
file first). If the ``size`` argument is negative or omitted, read all
the remaining data in the file.
.. note::
``'b'`` mode flag is ignored (``self.FLAG_BINARY`` in
``self._flags``), because SSH treats all files as binary, since we
have no idea what encoding the file is in, or even if the file is
text data.
:param int size: maximum number of bytes to read
:returns:
data read from the file (as bytes), or an empty string if EOF was
encountered immediately
s File is closeds File is not open for readingi N( R t IOErrorR R) R R R R R/ R! t _readR t EOFErrorR t
FLAG_BUFFEREDt maxR ( R t sizet resultt new_datat read_size( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR. sP
c
C s | j r t d n | j | j @s7 t d n | j } t } xt r| j r | j | j @r t | d k r | d t
k r | d } | j t n
| j t
t | _ n | d k r| d k rt | | k r| | | _ | | } t } Pn | t | } n | j } t | k sL| j | j @rPt
| k rPPn y | j | } Wn t k
r|d } n X| d k st | d k rt | _ | j t | 7_ | j | j @r| St | S| | 7} | j t | 7_ qI W| j t } | j | j @r[| j t
} | d k r[| | k sO| d k r[| } q[n | d k r| j t | 7_ | j | j @r| St | S| d } | | t k r| t | k r| | t
k r| d 7} n | r| | | j n | | | _ | | | !} | | t } t | j d k rO| t
k rOt | _ n
| j | | j t | 7_ | j | j @r| St | S( s
Read one entire line from the file. A trailing newline character is
kept in the string (but may be absent when a file ends with an
incomplete line). If the size argument is present and non-negative, it
is a maximum byte count (including the trailing newline) and an
incomplete line may be returned. An empty string is returned only when
EOF is encountered immediately.
.. note::
Unlike stdio's ``fgets``, the returned string contains null
characters (``'\0'``) if they occurred in the input.
:param int size: maximum length of returned string.
:returns:
next line of the file, or an empty string if the end of the
file has been reached.
If the file was opened in binary (``'b'``) mode: bytes are returned
Else: the encoding of the file is assumed to be UTF-8 and character
strings (`str`) are returned
s File is closeds File not open for readingi i iN( R R3 R R) R R R! R t FLAG_UNIVERSAL_NEWLINER/ R t _record_newlineR R R R R R4 R5 R R t FLAG_BINARYR R t findR (
R R8 R& t truncatedt nR: t post rpost xpost lf( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR$ sh +
(
$
2
$
!
c C sx g } d } xe t rs | j } t | d k r7 Pn | j | | t | 7} | d k r | | k r Pq q W| S( s
Read all remaining lines using `readline` and return them as a list.
If the optional ``sizehint`` argument is present, instead of reading up
to EOF, whole lines totalling approximately sizehint bytes (possibly
after rounding up to an internal buffer size) are read.
:param int sizehint: desired maximum number of bytes to read.
:returns: `list` of lines read from the file.
i N( R! R$ R/ t appendR ( R t sizehintt linest
byte_countR& ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt readlines: s
c C s t d d S( s
Set the file's current position, like stdio's ``fseek``. Not all file
objects support seeking.
.. note::
If a file is opened in append mode (``'a'`` or ``'a+'``), any seek
operations will be undone at the next write (as the file position
will move back to the end of the file).
:param int offset:
position to move to within the file, relative to ``whence``.
:param int whence:
type of movement: 0 = absolute; 1 = relative to the current
position; 2 = relative to the end of the file.
:raises IOError: if the file doesn't support random access.
s File does not support seeking.N( R3 ( R t offsett whence( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt seekP s c C s | j S( s
Return the file's current position. This may not be accurate or
useful if the underlying file doesn't support random access, or was
opened in append mode.
:returns: file position (`number <int>` of bytes).
( R ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt telld s c C s1 t | } | j r$ t d n | j | j @sC t d n | j | j @sd | j | d S| j j | | j | j @r| j
t } | d k r| j j } | t
| t
| 7} | j | | d t | _ | j j | | d n d S| j j | j k r-| j n d S( s*
Write data to the file. If write buffering is on (``bufsize`` was
specified and non-zero), some or all of the data may not actually be
written yet. (Use `flush` or `close` to force buffered data to be
written out.)
:param str data: data to write
s File is closeds File not open for writingNi i ( R R R3 R R+ R6 R" R t writet FLAG_LINE_BUFFEREDt rfindR R# R/ R RN R R ( R R1 t last_newline_post wbuf( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyRO n s*
c C s" x | D] } | j | q Wd S( sH
Write a sequence of strings to the file. The sequence can be any
iterable object producing strings, typically a list of strings. (The
name is intended to match `readlines`; `writelines` does not add line
separators.)
:param iterable sequence: an iterable sequence of strings.
N( RO ( R t sequenceR& ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt
writelines s
c C s | S( s
Identical to ``iter(f)``. This is a deprecated file interface that
predates Python iterator support.
( ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt
xreadlines s c C s | j S( N( R ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt closed s c C s
t d S( s
(subclass override)
Read data from the stream. Return ``None`` or raise ``EOFError`` to
indicate EOF.
N( R5 ( R R8 ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR4 s c C s t d d S( sI
(subclass override)
Write data into the stream.
s write not implementedN( R3 ( R R1 ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt _write s c C s d S( si
(subclass override)
Return the size of the file. This is called from within `_set_mode`
if the file is opened in append mode, so the file position can be
tracked and `seek` and `tell` will work correctly. If the file is
a stream that can't be randomly accessed, you don't need to override
this method,
i ( ( R ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt _get_size s t ric C s | j | _ | d k r! d } n | d k rI | j | j | j BO_ nf | d k r | | _ | j | j O_ | j | j M_ n) | d k r | j | j | j BM_ n d | k s d | k r | j | j O_ n d | k s d | k r | j | j O_ n d | k rS| j | j | j BO_ | j | _ | j | _
| _ n d | k rt| j | j O_ n d | k r| j | j
O_ d | _ n d S(
sM
Subclasses call this method to initialize the BufferedFile.
i i RZ t +t wt aR t UN( R R R R6 RP R) R+ t FLAG_APPENDRY R R R R> R< R R
( R t modet bufsize( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt _set_mode s0 c C s x t | d k r | j | } | | } | j | j @rc | j | 7_ | j | _ | _ q | j | 7_ | j | 7_ q Wd S( Ni ( R/ RX R R_ R R R R ( R R1 t count( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR" s
c C s | j | j @s d S| j d k r/ | | _ nZ | j | k re t | j t re | j | f | _ n$ | | j k r | j | f 7_ n d S( N( R R< R
R t
isinstanceR ( R t newline( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR= s !N(+ t __name__t
__module__t __doc__R t SEEK_SETt SEEK_CURt SEEK_ENDR) R+ R_ R> R6 RP R< R R R R R R R' R( R* R, R- R2 R R. R$ RJ RM RN RO RU RV t propertyRW R4 RX RY Rb R" R= ( ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyR sN
; [
"
( N( t paramiko.commonR R R R R t paramiko.py3compatR R R R R t
paramiko.utilR
R ( ( ( s1 /usr/lib/python2.7/site-packages/paramiko/file.pyt <module> s ((