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update request lib. #620

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clinton-hall 2015-01-20 12:57:25 +10:30
commit 41e9ad2fa3
43 changed files with 2442 additions and 1469 deletions
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122
libs/requests/models.py
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@ -19,31 +19,35 @@ from .cookies import cookiejar_from_dict, get_cookie_header
from .packages.urllib3.fields import RequestField
from .packages.urllib3.filepost import encode_multipart_formdata
from .packages.urllib3.util import parse_url
from .packages.urllib3.exceptions import DecodeError
from .packages.urllib3.exceptions import (
DecodeError, ReadTimeoutError, ProtocolError, LocationParseError)
from .exceptions import (
HTTPError, RequestException, MissingSchema, InvalidURL,
ChunkedEncodingError, ContentDecodingError)
HTTPError, MissingSchema, InvalidURL, ChunkedEncodingError,
ContentDecodingError, ConnectionError, StreamConsumedError)
from .utils import (
guess_filename, get_auth_from_url, requote_uri,
stream_decode_response_unicode, to_key_val_list, parse_header_links,
iter_slices, guess_json_utf, super_len, to_native_string)
from .compat import (
cookielib, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
is_py2, chardet, json, builtin_str, basestring, IncompleteRead)
is_py2, chardet, json, builtin_str, basestring)
from .status_codes import codes
#: The set of HTTP status codes that indicate an automatically
#: processable redirect.
REDIRECT_STATI = (
codes.moved, # 301
codes.found, # 302
codes.other, # 303
codes.temporary_moved, # 307
codes.moved, # 301
codes.found, # 302
codes.other, # 303
codes.temporary_redirect, # 307
codes.permanent_redirect, # 308
)
DEFAULT_REDIRECT_LIMIT = 30
CONTENT_CHUNK_SIZE = 10 * 1024
ITER_CHUNK_SIZE = 512
json_dumps = json.dumps
class RequestEncodingMixin(object):
@property
@ -187,7 +191,8 @@ class Request(RequestHooksMixin):
:param url: URL to send.
:param headers: dictionary of headers to send.
:param files: dictionary of {filename: fileobject} files to multipart upload.
:param data: the body to attach the request. If a dictionary is provided, form-encoding will take place.
:param data: the body to attach to the request. If a dictionary is provided, form-encoding will take place.
:param json: json for the body to attach to the request (if data is not specified).
:param params: dictionary of URL parameters to append to the URL.
:param auth: Auth handler or (user, pass) tuple.
:param cookies: dictionary or CookieJar of cookies to attach to this request.
@ -210,7 +215,8 @@ class Request(RequestHooksMixin):
params=None,
auth=None,
cookies=None,
hooks=None):
hooks=None,
json=None):
# Default empty dicts for dict params.
data = [] if data is None else data
@ -228,6 +234,7 @@ class Request(RequestHooksMixin):
self.headers = headers
self.files = files
self.data = data
self.json = json
self.params = params
self.auth = auth
self.cookies = cookies
@ -244,6 +251,7 @@ class Request(RequestHooksMixin):
headers=self.headers,
files=self.files,
data=self.data,
json=self.json,
params=self.params,
auth=self.auth,
cookies=self.cookies,
@ -287,14 +295,15 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
self.hooks = default_hooks()
def prepare(self, method=None, url=None, headers=None, files=None,
data=None, params=None, auth=None, cookies=None, hooks=None):
data=None, params=None, auth=None, cookies=None, hooks=None,
json=None):
"""Prepares the entire request with the given parameters."""
self.prepare_method(method)
self.prepare_url(url, params)
self.prepare_headers(headers)
self.prepare_cookies(cookies)
self.prepare_body(data, files)
self.prepare_body(data, files, json)
self.prepare_auth(auth, url)
# Note that prepare_auth must be last to enable authentication schemes
# such as OAuth to work on a fully prepared request.
@ -309,8 +318,8 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
p = PreparedRequest()
p.method = self.method
p.url = self.url
p.headers = self.headers.copy()
p._cookies = self._cookies.copy()
p.headers = self.headers.copy() if self.headers is not None else None
p._cookies = self._cookies.copy() if self._cookies is not None else None
p.body = self.body
p.hooks = self.hooks
return p
@ -324,21 +333,27 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
def prepare_url(self, url, params):
"""Prepares the given HTTP URL."""
#: Accept objects that have string representations.
try:
url = unicode(url)
except NameError:
# We're on Python 3.
url = str(url)
except UnicodeDecodeError:
pass
#: We're unable to blindy call unicode/str functions
#: as this will include the bytestring indicator (b'')
#: on python 3.x.
#: https://github.com/kennethreitz/requests/pull/2238
if isinstance(url, bytes):
url = url.decode('utf8')
else:
url = unicode(url) if is_py2 else str(url)
# Don't do any URL preparation for oddball schemes
# Don't do any URL preparation for non-HTTP schemes like `mailto`,
# `data` etc to work around exceptions from `url_parse`, which
# handles RFC 3986 only.
if ':' in url and not url.lower().startswith('http'):
self.url = url
return
# Support for unicode domain names and paths.
scheme, auth, host, port, path, query, fragment = parse_url(url)
try:
scheme, auth, host, port, path, query, fragment = parse_url(url)
except LocationParseError as e:
raise InvalidURL(*e.args)
if not scheme:
raise MissingSchema("Invalid URL {0!r}: No schema supplied. "
@ -395,7 +410,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
else:
self.headers = CaseInsensitiveDict()
def prepare_body(self, data, files):
def prepare_body(self, data, files, json=None):
"""Prepares the given HTTP body data."""
# Check if file, fo, generator, iterator.
@ -406,6 +421,10 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
content_type = None
length = None
if json is not None:
content_type = 'application/json'
body = json_dumps(json)
is_stream = all([
hasattr(data, '__iter__'),
not isinstance(data, (basestring, list, tuple, dict))
@ -431,9 +450,9 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
if files:
(body, content_type) = self._encode_files(files, data)
else:
if data:
if data and json is None:
body = self._encode_params(data)
if isinstance(data, str) or isinstance(data, builtin_str) or hasattr(data, 'read'):
if isinstance(data, basestring) or hasattr(data, 'read'):
content_type = None
else:
content_type = 'application/x-www-form-urlencoded'
@ -441,7 +460,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
self.prepare_content_length(body)
# Add content-type if it wasn't explicitly provided.
if (content_type) and (not 'content-type' in self.headers):
if content_type and ('content-type' not in self.headers):
self.headers['Content-Type'] = content_type
self.body = body
@ -455,7 +474,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
l = super_len(body)
if l:
self.headers['Content-Length'] = builtin_str(l)
elif self.method not in ('GET', 'HEAD'):
elif (self.method not in ('GET', 'HEAD')) and (self.headers.get('Content-Length') is None):
self.headers['Content-Length'] = '0'
def prepare_auth(self, auth, url=''):
@ -556,6 +575,10 @@ class Response(object):
#: and the arrival of the response (as a timedelta)
self.elapsed = datetime.timedelta(0)
#: The :class:`PreparedRequest <PreparedRequest>` object to which this
#: is a response.
self.request = None
def __getstate__(self):
# Consume everything; accessing the content attribute makes
# sure the content has been fully read.
@ -594,7 +617,7 @@ class Response(object):
def ok(self):
try:
self.raise_for_status()
except RequestException:
except HTTPError:
return False
return True
@ -605,6 +628,11 @@ class Response(object):
"""
return ('location' in self.headers and self.status_code in REDIRECT_STATI)
@property
def is_permanent_redirect(self):
"""True if this Response one of the permanant versions of redirect"""
return ('location' in self.headers and self.status_code in (codes.moved_permanently, codes.permanent_redirect))
@property
def apparent_encoding(self):
"""The apparent encoding, provided by the chardet library"""
@ -616,21 +644,22 @@ class Response(object):
large responses. The chunk size is the number of bytes it should
read into memory. This is not necessarily the length of each item
returned as decoding can take place.
"""
if self._content_consumed:
# simulate reading small chunks of the content
return iter_slices(self._content, chunk_size)
If decode_unicode is True, content will be decoded using the best
available encoding based on the response.
"""
def generate():
try:
# Special case for urllib3.
try:
for chunk in self.raw.stream(chunk_size, decode_content=True):
yield chunk
except IncompleteRead as e:
except ProtocolError as e:
raise ChunkedEncodingError(e)
except DecodeError as e:
raise ContentDecodingError(e)
except ReadTimeoutError as e:
raise ConnectionError(e)
except AttributeError:
# Standard file-like object.
while True:
@ -641,14 +670,21 @@ class Response(object):
self._content_consumed = True
gen = generate()
if self._content_consumed and isinstance(self._content, bool):
raise StreamConsumedError()
# simulate reading small chunks of the content
reused_chunks = iter_slices(self._content, chunk_size)
stream_chunks = generate()
chunks = reused_chunks if self._content_consumed else stream_chunks
if decode_unicode:
gen = stream_decode_response_unicode(gen, self)
chunks = stream_decode_response_unicode(chunks, self)
return gen
return chunks
def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=None):
def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=None, delimiter=None):
"""Iterates over the response data, one line at a time. When
stream=True is set on the request, this avoids reading the
content at once into memory for large responses.
@ -660,7 +696,11 @@ class Response(object):
if pending is not None:
chunk = pending + chunk
lines = chunk.splitlines()
if delimiter:
lines = chunk.split(delimiter)
else:
lines = chunk.splitlines()
if lines and lines[-1] and chunk and lines[-1][-1] == chunk[-1]:
pending = lines.pop()
@ -791,8 +831,8 @@ class Response(object):
raise HTTPError(http_error_msg, response=self)
def close(self):
"""Closes the underlying file descriptor and releases the connection
back to the pool.
"""Releases the connection back to the pool. Once this method has been
called the underlying ``raw`` object must not be accessed again.
*Note: Should not normally need to be called explicitly.*
"""