Update library: requests

This commit is contained in:
Ruud committed 2014-09-03 16:47:03 +02:00
1 parent 50a150f570
commit 9e564c49b3
33 files changed
+1071 -647

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@@ -46,15 +46,18 @@ Module Variables
'''
from ndg.httpsclient.ssl_peer_verification import SUBJ_ALT_NAME_SUPPORT
from ndg.httpsclient.subj_alt_name import SubjectAltName as BaseSubjectAltName
try:
from ndg.httpsclient.ssl_peer_verification import SUBJ_ALT_NAME_SUPPORT
from ndg.httpsclient.subj_alt_name import SubjectAltName as BaseSubjectAltName
except SyntaxError as e:
raise ImportError(e)
import OpenSSL.SSL
from pyasn1.codec.der import decoder as der_decoder
from pyasn1.type import univ, constraint
from socket import _fileobject, timeout
import ssl
import select
from cStringIO import StringIO
from .. import connection
from .. import util
@@ -155,196 +158,43 @@ def get_subj_alt_name(peer_cert):
return dns_name
class fileobject(_fileobject):
def _wait_for_sock(self):
rd, wd, ed = select.select([self._sock], [], [],
self._sock.gettimeout())
if not rd:
raise timeout()
def read(self, size=-1):
# Use max, disallow tiny reads in a loop as they are very inefficient.
# We never leave read() with any leftover data from a new recv() call
# in our internal buffer.
rbufsize = max(self._rbufsize, self.default_bufsize)
# Our use of StringIO rather than lists of string objects returned by
# recv() minimizes memory usage and fragmentation that occurs when
# rbufsize is large compared to the typical return value of recv().
buf = self._rbuf
buf.seek(0, 2) # seek end
if size < 0:
# Read until EOF
self._rbuf = StringIO() # reset _rbuf. we consume it via buf.
while True:
try:
data = self._sock.recv(rbufsize)
except OpenSSL.SSL.WantReadError:
self._wait_for_sock()
continue
if not data:
break
buf.write(data)
return buf.getvalue()
else:
# Read until size bytes or EOF seen, whichever comes first
buf_len = buf.tell()
if buf_len >= size:
# Already have size bytes in our buffer? Extract and return.
buf.seek(0)
rv = buf.read(size)
self._rbuf = StringIO()
self._rbuf.write(buf.read())
return rv
self._rbuf = StringIO() # reset _rbuf. we consume it via buf.
while True:
left = size - buf_len
# recv() will malloc the amount of memory given as its
# parameter even though it often returns much less data
# than that. The returned data string is short lived
# as we copy it into a StringIO and free it. This avoids
# fragmentation issues on many platforms.
try:
data = self._sock.recv(left)
except OpenSSL.SSL.WantReadError:
self._wait_for_sock()
continue
if not data:
break
n = len(data)
if n == size and not buf_len:
# Shortcut. Avoid buffer data copies when:
# - We have no data in our buffer.
# AND
# - Our call to recv returned exactly the
# number of bytes we were asked to read.
return data
if n == left:
buf.write(data)
del data # explicit free
break
assert n <= left, "recv(%d) returned %d bytes" % (left, n)
buf.write(data)
buf_len += n
del data # explicit free
#assert buf_len == buf.tell()
return buf.getvalue()
def readline(self, size=-1):
buf = self._rbuf
buf.seek(0, 2) # seek end
if buf.tell() > 0:
# check if we already have it in our buffer
buf.seek(0)
bline = buf.readline(size)
if bline.endswith('\n') or len(bline) == size:
self._rbuf = StringIO()
self._rbuf.write(buf.read())
return bline
del bline
if size < 0:
# Read until \n or EOF, whichever comes first
if self._rbufsize <= 1:
# Speed up unbuffered case
buf.seek(0)
buffers = [buf.read()]
self._rbuf = StringIO() # reset _rbuf. we consume it via buf.
data = None
recv = self._sock.recv
while True:
try:
while data != "\n":
data = recv(1)
if not data:
break
buffers.append(data)
except OpenSSL.SSL.WantReadError:
self._wait_for_sock()
continue
break
return "".join(buffers)
buf.seek(0, 2) # seek end
self._rbuf = StringIO() # reset _rbuf. we consume it via buf.
while True:
try:
data = self._sock.recv(self._rbufsize)
except OpenSSL.SSL.WantReadError:
self._wait_for_sock()
continue
if not data:
break
nl = data.find('\n')
if nl >= 0:
nl += 1
buf.write(data[:nl])
self._rbuf.write(data[nl:])
del data
break
buf.write(data)
return buf.getvalue()
else:
# Read until size bytes or \n or EOF seen, whichever comes first
buf.seek(0, 2) # seek end
buf_len = buf.tell()
if buf_len >= size:
buf.seek(0)
rv = buf.read(size)
self._rbuf = StringIO()
self._rbuf.write(buf.read())
return rv
self._rbuf = StringIO() # reset _rbuf. we consume it via buf.
while True:
try:
data = self._sock.recv(self._rbufsize)
except OpenSSL.SSL.WantReadError:
self._wait_for_sock()
continue
if not data:
break
left = size - buf_len
# did we just receive a newline?
nl = data.find('\n', 0, left)
if nl >= 0:
nl += 1
# save the excess data to _rbuf
self._rbuf.write(data[nl:])
if buf_len:
buf.write(data[:nl])
break
else:
# Shortcut. Avoid data copy through buf when returning
# a substring of our first recv().
return data[:nl]
n = len(data)
if n == size and not buf_len:
# Shortcut. Avoid data copy through buf when
# returning exactly all of our first recv().
return data
if n >= left:
buf.write(data[:left])
self._rbuf.write(data[left:])
break
buf.write(data)
buf_len += n
#assert buf_len == buf.tell()
return buf.getvalue()
class WrappedSocket(object):
'''API-compatibility wrapper for Python OpenSSL's Connection-class.'''
'''API-compatibility wrapper for Python OpenSSL's Connection-class.
def __init__(self, connection, socket):
Note: _makefile_refs, _drop() and _reuse() are needed for the garbage
collector of pypy.
'''
def __init__(self, connection, socket, suppress_ragged_eofs=True):
self.connection = connection
self.socket = socket
self.suppress_ragged_eofs = suppress_ragged_eofs
self._makefile_refs = 0
def fileno(self):
return self.socket.fileno()
def makefile(self, mode, bufsize=-1):
return fileobject(self.connection, mode, bufsize)
self._makefile_refs += 1
return _fileobject(self, mode, bufsize, close=True)
def recv(self, *args, **kwargs):
try:
data = self.connection.recv(*args, **kwargs)
except OpenSSL.SSL.SysCallError as e:
if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
return b''
else:
raise
except OpenSSL.SSL.WantReadError:
rd, wd, ed = select.select(
[self.socket], [], [], self.socket.gettimeout())
if not rd:
raise timeout('The read operation timed out')
else:
return self.recv(*args, **kwargs)
else:
return data
def settimeout(self, timeout):
return self.socket.settimeout(timeout)
@@ -353,7 +203,10 @@ class WrappedSocket(object):
return self.connection.sendall(data)
def close(self):
return self.connection.shutdown()
if self._makefile_refs < 1:
return self.connection.shutdown()
else:
self._makefile_refs -= 1
def getpeercert(self, binary_form=False):
x509 = self.connection.get_peer_certificate()
@@ -376,6 +229,15 @@ class WrappedSocket(object):
]
}
def _reuse(self):
self._makefile_refs += 1
def _drop(self):
if self._makefile_refs < 1:
self.close()
else:
self._makefile_refs -= 1
def _verify_callback(cnx, x509, err_no, err_depth, return_code):
return err_no == 0