diff options
Diffstat (limited to 'pip/_vendor/requests/utils.py')
| -rw-r--r-- | pip/_vendor/requests/utils.py | 50 |
1 files changed, 30 insertions, 20 deletions
diff --git a/pip/_vendor/requests/utils.py b/pip/_vendor/requests/utils.py index 7b7ff0a7b..68e50cf0a 100644 --- a/pip/_vendor/requests/utils.py +++ b/pip/_vendor/requests/utils.py @@ -24,10 +24,10 @@ from . import __version__ from . import certs from .compat import parse_http_list as _parse_list_header from .compat import (quote, urlparse, bytes, str, OrderedDict, unquote, is_py2, - builtin_str, getproxies, proxy_bypass) + builtin_str, getproxies, proxy_bypass, urlunparse) from .cookies import RequestsCookieJar, cookiejar_from_dict from .structures import CaseInsensitiveDict -from .exceptions import MissingSchema, InvalidURL +from .exceptions import InvalidURL _hush_pyflakes = (RequestsCookieJar,) @@ -61,7 +61,7 @@ def super_len(o): return os.fstat(fileno).st_size if hasattr(o, 'getvalue'): - # e.g. BytesIO, cStringIO.StringI + # e.g. BytesIO, cStringIO.StringIO return len(o.getvalue()) @@ -466,9 +466,10 @@ def is_valid_cidr(string_network): return True -def get_environ_proxies(url): - """Return a dict of environment proxies.""" - +def should_bypass_proxies(url): + """ + Returns whether we should bypass proxies or not. + """ get_proxy = lambda k: os.environ.get(k) or os.environ.get(k.upper()) # First check whether no_proxy is defined. If it is, check that the URL @@ -486,13 +487,13 @@ def get_environ_proxies(url): for proxy_ip in no_proxy: if is_valid_cidr(proxy_ip): if address_in_network(ip, proxy_ip): - return {} + return True else: for host in no_proxy: if netloc.endswith(host) or netloc.split(':')[0].endswith(host): # The URL does match something in no_proxy, so we don't want # to apply the proxies on this URL. - return {} + return True # If the system proxy settings indicate that this URL should be bypassed, # don't proxy. @@ -506,12 +507,16 @@ def get_environ_proxies(url): bypass = False if bypass: - return {} + return True - # If we get here, we either didn't have no_proxy set or we're not going - # anywhere that no_proxy applies to, and the system settings don't require - # bypassing the proxy for the current URL. - return getproxies() + return False + +def get_environ_proxies(url): + """Return a dict of environment proxies.""" + if should_bypass_proxies(url): + return {} + else: + return getproxies() def default_user_agent(name="python-requests"): @@ -548,7 +553,7 @@ def default_user_agent(name="python-requests"): def default_headers(): return CaseInsensitiveDict({ 'User-Agent': default_user_agent(), - 'Accept-Encoding': ', '.join(('gzip', 'deflate', 'compress')), + 'Accept-Encoding': ', '.join(('gzip', 'deflate')), 'Accept': '*/*' }) @@ -622,13 +627,18 @@ def guess_json_utf(data): return None -def except_on_missing_scheme(url): - """Given a URL, raise a MissingSchema exception if the scheme is missing. - """ - scheme, netloc, path, params, query, fragment = urlparse(url) +def prepend_scheme_if_needed(url, new_scheme): + '''Given a URL that may or may not have a scheme, prepend the given scheme. + Does not replace a present scheme with the one provided as an argument.''' + scheme, netloc, path, params, query, fragment = urlparse(url, new_scheme) + + # urlparse is a finicky beast, and sometimes decides that there isn't a + # netloc present. Assume that it's being over-cautious, and switch netloc + # and path if urlparse decided there was no netloc. + if not netloc: + netloc, path = path, netloc - if not scheme: - raise MissingSchema('Proxy URLs must have explicit schemes.') + return urlunparse((scheme, netloc, path, params, query, fragment)) def get_auth_from_url(url): |