feat(SublimeText2.GitPackages): cache packages
This commit is contained in:
Iristyle
@@ -0,0 +1,408 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
"""
|
||||
requests.utils
|
||||
~~~~~~~~~~~~~~
|
||||
|
||||
This module provides utility functions that are used within Requests
|
||||
that are also useful for external consumption.
|
||||
|
||||
"""
|
||||
|
||||
import cgi
|
||||
import codecs
|
||||
import os
|
||||
import random
|
||||
import re
|
||||
import zlib
|
||||
|
||||
from .compat import parse_http_list as _parse_list_header
|
||||
from .compat import quote, unquote, cookielib, SimpleCookie, is_py2
|
||||
from .compat import basestring
|
||||
|
||||
|
||||
def dict_from_string(s):
|
||||
"""Returns a MultiDict with Cookies."""
|
||||
|
||||
cookies = dict()
|
||||
|
||||
c = SimpleCookie()
|
||||
c.load(s)
|
||||
|
||||
for k,v in list(c.items()):
|
||||
cookies.update({k: v.value})
|
||||
|
||||
return cookies
|
||||
|
||||
def guess_filename(obj):
|
||||
"""Tries to guess the filename of the given object."""
|
||||
name = getattr(obj, 'name', None)
|
||||
if name and name[0] != '<' and name[-1] != '>':
|
||||
return name
|
||||
|
||||
# From mitsuhiko/werkzeug (used with permission).
|
||||
def parse_list_header(value):
|
||||
"""Parse lists as described by RFC 2068 Section 2.
|
||||
|
||||
In particular, parse comma-separated lists where the elements of
|
||||
the list may include quoted-strings. A quoted-string could
|
||||
contain a comma. A non-quoted string could have quotes in the
|
||||
middle. Quotes are removed automatically after parsing.
|
||||
|
||||
It basically works like :func:`parse_set_header` just that items
|
||||
may appear multiple times and case sensitivity is preserved.
|
||||
|
||||
The return value is a standard :class:`list`:
|
||||
|
||||
>>> parse_list_header('token, "quoted value"')
|
||||
['token', 'quoted value']
|
||||
|
||||
To create a header from the :class:`list` again, use the
|
||||
:func:`dump_header` function.
|
||||
|
||||
:param value: a string with a list header.
|
||||
:return: :class:`list`
|
||||
"""
|
||||
result = []
|
||||
for item in _parse_list_header(value):
|
||||
if item[:1] == item[-1:] == '"':
|
||||
item = unquote_header_value(item[1:-1])
|
||||
result.append(item)
|
||||
return result
|
||||
|
||||
|
||||
# From mitsuhiko/werkzeug (used with permission).
|
||||
def parse_dict_header(value):
|
||||
"""Parse lists of key, value pairs as described by RFC 2068 Section 2 and
|
||||
convert them into a python dict:
|
||||
|
||||
>>> d = parse_dict_header('foo="is a fish", bar="as well"')
|
||||
>>> type(d) is dict
|
||||
True
|
||||
>>> sorted(d.items())
|
||||
[('bar', 'as well'), ('foo', 'is a fish')]
|
||||
|
||||
If there is no value for a key it will be `None`:
|
||||
|
||||
>>> parse_dict_header('key_without_value')
|
||||
{'key_without_value': None}
|
||||
|
||||
To create a header from the :class:`dict` again, use the
|
||||
:func:`dump_header` function.
|
||||
|
||||
:param value: a string with a dict header.
|
||||
:return: :class:`dict`
|
||||
"""
|
||||
result = {}
|
||||
for item in _parse_list_header(value):
|
||||
if '=' not in item:
|
||||
result[item] = None
|
||||
continue
|
||||
name, value = item.split('=', 1)
|
||||
if value[:1] == value[-1:] == '"':
|
||||
value = unquote_header_value(value[1:-1])
|
||||
result[name] = value
|
||||
return result
|
||||
|
||||
|
||||
# From mitsuhiko/werkzeug (used with permission).
|
||||
def unquote_header_value(value, is_filename=False):
|
||||
r"""Unquotes a header value. (Reversal of :func:`quote_header_value`).
|
||||
This does not use the real unquoting but what browsers are actually
|
||||
using for quoting.
|
||||
|
||||
:param value: the header value to unquote.
|
||||
"""
|
||||
if value and value[0] == value[-1] == '"':
|
||||
# this is not the real unquoting, but fixing this so that the
|
||||
# RFC is met will result in bugs with internet explorer and
|
||||
# probably some other browsers as well. IE for example is
|
||||
# uploading files with "C:\foo\bar.txt" as filename
|
||||
value = value[1:-1]
|
||||
|
||||
# if this is a filename and the starting characters look like
|
||||
# a UNC path, then just return the value without quotes. Using the
|
||||
# replace sequence below on a UNC path has the effect of turning
|
||||
# the leading double slash into a single slash and then
|
||||
# _fix_ie_filename() doesn't work correctly. See #458.
|
||||
if not is_filename or value[:2] != '\\\\':
|
||||
return value.replace('\\\\', '\\').replace('\\"', '"')
|
||||
return value
|
||||
|
||||
|
||||
def header_expand(headers):
|
||||
"""Returns an HTTP Header value string from a dictionary.
|
||||
|
||||
Example expansion::
|
||||
|
||||
{'text/x-dvi': {'q': '.8', 'mxb': '100000', 'mxt': '5.0'}, 'text/x-c': {}}
|
||||
# Accept: text/x-dvi; q=.8; mxb=100000; mxt=5.0, text/x-c
|
||||
|
||||
(('text/x-dvi', {'q': '.8', 'mxb': '100000', 'mxt': '5.0'}), ('text/x-c', {}))
|
||||
# Accept: text/x-dvi; q=.8; mxb=100000; mxt=5.0, text/x-c
|
||||
"""
|
||||
|
||||
collector = []
|
||||
|
||||
if isinstance(headers, dict):
|
||||
headers = list(headers.items())
|
||||
|
||||
elif isinstance(headers, basestring):
|
||||
return headers
|
||||
|
||||
for i, (value, params) in enumerate(headers):
|
||||
|
||||
_params = []
|
||||
|
||||
for (p_k, p_v) in list(params.items()):
|
||||
|
||||
_params.append('%s=%s' % (p_k, p_v))
|
||||
|
||||
collector.append(value)
|
||||
collector.append('; ')
|
||||
|
||||
if len(params):
|
||||
|
||||
collector.append('; '.join(_params))
|
||||
|
||||
if not len(headers) == i+1:
|
||||
collector.append(', ')
|
||||
|
||||
|
||||
# Remove trailing separators.
|
||||
if collector[-1] in (', ', '; '):
|
||||
del collector[-1]
|
||||
|
||||
return ''.join(collector)
|
||||
|
||||
|
||||
|
||||
def randombytes(n):
|
||||
"""Return n random bytes."""
|
||||
if is_py2:
|
||||
L = [chr(random.randrange(0, 256)) for i in range(n)]
|
||||
else:
|
||||
L = [chr(random.randrange(0, 256)).encode('utf-8') for i in range(n)]
|
||||
return b"".join(L)
|
||||
|
||||
|
||||
def dict_from_cookiejar(cj):
|
||||
"""Returns a key/value dictionary from a CookieJar.
|
||||
|
||||
:param cj: CookieJar object to extract cookies from.
|
||||
"""
|
||||
|
||||
cookie_dict = {}
|
||||
|
||||
for _, cookies in list(cj._cookies.items()):
|
||||
for _, cookies in list(cookies.items()):
|
||||
for cookie in list(cookies.values()):
|
||||
# print cookie
|
||||
cookie_dict[cookie.name] = cookie.value
|
||||
|
||||
return cookie_dict
|
||||
|
||||
|
||||
def cookiejar_from_dict(cookie_dict):
|
||||
"""Returns a CookieJar from a key/value dictionary.
|
||||
|
||||
:param cookie_dict: Dict of key/values to insert into CookieJar.
|
||||
"""
|
||||
|
||||
# return cookiejar if one was passed in
|
||||
if isinstance(cookie_dict, cookielib.CookieJar):
|
||||
return cookie_dict
|
||||
|
||||
# create cookiejar
|
||||
cj = cookielib.CookieJar()
|
||||
|
||||
cj = add_dict_to_cookiejar(cj, cookie_dict)
|
||||
|
||||
return cj
|
||||
|
||||
|
||||
def add_dict_to_cookiejar(cj, cookie_dict):
|
||||
"""Returns a CookieJar from a key/value dictionary.
|
||||
|
||||
:param cj: CookieJar to insert cookies into.
|
||||
:param cookie_dict: Dict of key/values to insert into CookieJar.
|
||||
"""
|
||||
|
||||
for k, v in list(cookie_dict.items()):
|
||||
|
||||
cookie = cookielib.Cookie(
|
||||
version=0,
|
||||
name=k,
|
||||
value=v,
|
||||
port=None,
|
||||
port_specified=False,
|
||||
domain='',
|
||||
domain_specified=False,
|
||||
domain_initial_dot=False,
|
||||
path='/',
|
||||
path_specified=True,
|
||||
secure=False,
|
||||
expires=None,
|
||||
discard=True,
|
||||
comment=None,
|
||||
comment_url=None,
|
||||
rest={'HttpOnly': None},
|
||||
rfc2109=False
|
||||
)
|
||||
|
||||
# add cookie to cookiejar
|
||||
cj.set_cookie(cookie)
|
||||
|
||||
return cj
|
||||
|
||||
|
||||
def get_encodings_from_content(content):
|
||||
"""Returns encodings from given content string.
|
||||
|
||||
:param content: bytestring to extract encodings from.
|
||||
"""
|
||||
|
||||
charset_re = re.compile(r'<meta.*?charset=["\']*(.+?)["\'>]', flags=re.I)
|
||||
|
||||
return charset_re.findall(content)
|
||||
|
||||
|
||||
def get_encoding_from_headers(headers):
|
||||
"""Returns encodings from given HTTP Header Dict.
|
||||
|
||||
:param headers: dictionary to extract encoding from.
|
||||
"""
|
||||
|
||||
content_type = headers.get('content-type')
|
||||
|
||||
if not content_type:
|
||||
return None
|
||||
|
||||
content_type, params = cgi.parse_header(content_type)
|
||||
|
||||
if 'charset' in params:
|
||||
return params['charset'].strip("'\"")
|
||||
|
||||
if 'text' in content_type:
|
||||
return 'ISO-8859-1'
|
||||
|
||||
|
||||
def unicode_from_html(content):
|
||||
"""Attempts to decode an HTML string into unicode.
|
||||
If unsuccessful, the original content is returned.
|
||||
"""
|
||||
|
||||
encodings = get_encodings_from_content(content)
|
||||
|
||||
for encoding in encodings:
|
||||
|
||||
try:
|
||||
return str(content, encoding)
|
||||
except (UnicodeError, TypeError):
|
||||
pass
|
||||
|
||||
return content
|
||||
|
||||
|
||||
def stream_decode_response_unicode(iterator, r):
|
||||
"""Stream decodes a iterator."""
|
||||
|
||||
if r.encoding is None:
|
||||
for item in iterator:
|
||||
yield item
|
||||
return
|
||||
|
||||
decoder = codecs.getincrementaldecoder(r.encoding)(errors='replace')
|
||||
for chunk in iterator:
|
||||
rv = decoder.decode(chunk)
|
||||
if rv:
|
||||
yield rv
|
||||
rv = decoder.decode('', final=True)
|
||||
if rv:
|
||||
yield rv
|
||||
|
||||
|
||||
def get_unicode_from_response(r):
|
||||
"""Returns the requested content back in unicode.
|
||||
|
||||
:param r: Response object to get unicode content from.
|
||||
|
||||
Tried:
|
||||
|
||||
1. charset from content-type
|
||||
|
||||
2. every encodings from ``<meta ... charset=XXX>``
|
||||
|
||||
3. fall back and replace all unicode characters
|
||||
|
||||
"""
|
||||
|
||||
tried_encodings = []
|
||||
|
||||
# Try charset from content-type
|
||||
encoding = get_encoding_from_headers(r.headers)
|
||||
|
||||
if encoding:
|
||||
try:
|
||||
return str(r.content, encoding)
|
||||
except UnicodeError:
|
||||
tried_encodings.append(encoding)
|
||||
|
||||
# Fall back:
|
||||
try:
|
||||
return str(r.content, encoding, errors='replace')
|
||||
except TypeError:
|
||||
return r.content
|
||||
|
||||
|
||||
def decode_gzip(content):
|
||||
"""Return gzip-decoded string.
|
||||
|
||||
:param content: bytestring to gzip-decode.
|
||||
"""
|
||||
|
||||
return zlib.decompress(content, 16 + zlib.MAX_WBITS)
|
||||
|
||||
|
||||
def stream_decompress(iterator, mode='gzip'):
|
||||
"""
|
||||
Stream decodes an iterator over compressed data
|
||||
|
||||
:param iterator: An iterator over compressed data
|
||||
:param mode: 'gzip' or 'deflate'
|
||||
:return: An iterator over decompressed data
|
||||
"""
|
||||
|
||||
if mode not in ['gzip', 'deflate']:
|
||||
raise ValueError('stream_decompress mode must be gzip or deflate')
|
||||
|
||||
zlib_mode = 16 + zlib.MAX_WBITS if mode == 'gzip' else -zlib.MAX_WBITS
|
||||
dec = zlib.decompressobj(zlib_mode)
|
||||
try:
|
||||
for chunk in iterator:
|
||||
rv = dec.decompress(chunk)
|
||||
if rv:
|
||||
yield rv
|
||||
except zlib.error:
|
||||
# If there was an error decompressing, just return the raw chunk
|
||||
yield chunk
|
||||
# Continue to return the rest of the raw data
|
||||
for chunk in iterator:
|
||||
yield chunk
|
||||
else:
|
||||
# Make sure everything has been returned from the decompression object
|
||||
buf = dec.decompress('')
|
||||
rv = buf + dec.flush()
|
||||
if rv:
|
||||
yield rv
|
||||
|
||||
|
||||
def requote_path(path):
|
||||
"""Re-quote the given URL path component.
|
||||
|
||||
This function passes the given path through an unquote/quote cycle to
|
||||
ensure that it is fully and consistently quoted.
|
||||
"""
|
||||
parts = path.split(b"/")
|
||||
parts = (quote(unquote(part), safe=b"") for part in parts)
|
||||
return b"/".join(parts)
|
||||
Reference in New Issue
Block a user