Update requests lib

This commit is contained in:
Ruud
2014-01-10 13:16:12 +01:00
parent 28aa908513
commit 91f3cda995
32 changed files with 6603 additions and 3421 deletions
+93 -27
View File
@@ -6,9 +6,14 @@
import logging
try: # Python 3
from urllib.parse import urljoin
except ImportError:
from urlparse import urljoin
from ._collections import RecentlyUsedContainer
from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool
from .connectionpool import connection_from_url, port_by_scheme
from .connectionpool import port_by_scheme
from .request import RequestMethods
from .util import parse_url
@@ -55,6 +60,8 @@ class PoolManager(RequestMethods):
"""
proxy = None
def __init__(self, num_pools=10, headers=None, **connection_pool_kw):
RequestMethods.__init__(self, headers)
self.connection_pool_kw = connection_pool_kw
@@ -94,20 +101,23 @@ class PoolManager(RequestMethods):
If ``port`` isn't given, it will be derived from the ``scheme`` using
``urllib3.connectionpool.port_by_scheme``.
"""
scheme = scheme or 'http'
port = port or port_by_scheme.get(scheme, 80)
pool_key = (scheme, host, port)
# If the scheme, host, or port doesn't match existing open connections,
# open a new ConnectionPool.
pool = self.pools.get(pool_key)
if pool:
return pool
with self.pools.lock:
# If the scheme, host, or port doesn't match existing open
# connections, open a new ConnectionPool.
pool = self.pools.get(pool_key)
if pool:
return pool
# Make a fresh ConnectionPool of the desired type
pool = self._new_pool(scheme, host, port)
self.pools[pool_key] = pool
# Make a fresh ConnectionPool of the desired type
pool = self._new_pool(scheme, host, port)
self.pools[pool_key] = pool
return pool
def connection_from_url(self, url):
@@ -139,12 +149,19 @@ class PoolManager(RequestMethods):
if 'headers' not in kw:
kw['headers'] = self.headers
response = conn.urlopen(method, u.request_uri, **kw)
if self.proxy is not None and u.scheme == "http":
response = conn.urlopen(method, url, **kw)
else:
response = conn.urlopen(method, u.request_uri, **kw)
redirect_location = redirect and response.get_redirect_location()
if not redirect_location:
return response
# Support relative URLs for redirecting.
redirect_location = urljoin(url, redirect_location)
# RFC 2616, Section 10.3.4
if response.status == 303:
method = 'GET'
@@ -154,15 +171,59 @@ class PoolManager(RequestMethods):
return self.urlopen(method, redirect_location, **kw)
class ProxyManager(RequestMethods):
class ProxyManager(PoolManager):
"""
Given a ConnectionPool to a proxy, the ProxyManager's ``urlopen`` method
will make requests to any url through the defined proxy. The ProxyManager
class will automatically set the 'Host' header if it is not provided.
Behaves just like :class:`PoolManager`, but sends all requests through
the defined proxy, using the CONNECT method for HTTPS URLs.
:param poxy_url:
The URL of the proxy to be used.
:param proxy_headers:
A dictionary contaning headers that will be sent to the proxy. In case
of HTTP they are being sent with each request, while in the
HTTPS/CONNECT case they are sent only once. Could be used for proxy
authentication.
Example:
>>> proxy = urllib3.ProxyManager('http://localhost:3128/')
>>> r1 = proxy.request('GET', 'http://google.com/')
>>> r2 = proxy.request('GET', 'http://httpbin.org/')
>>> len(proxy.pools)
1
>>> r3 = proxy.request('GET', 'https://httpbin.org/')
>>> r4 = proxy.request('GET', 'https://twitter.com/')
>>> len(proxy.pools)
3
"""
def __init__(self, proxy_pool):
self.proxy_pool = proxy_pool
def __init__(self, proxy_url, num_pools=10, headers=None,
proxy_headers=None, **connection_pool_kw):
if isinstance(proxy_url, HTTPConnectionPool):
proxy_url = '%s://%s:%i' % (proxy_url.scheme, proxy_url.host,
proxy_url.port)
proxy = parse_url(proxy_url)
if not proxy.port:
port = port_by_scheme.get(proxy.scheme, 80)
proxy = proxy._replace(port=port)
self.proxy = proxy
self.proxy_headers = proxy_headers or {}
assert self.proxy.scheme in ("http", "https"), \
'Not supported proxy scheme %s' % self.proxy.scheme
connection_pool_kw['_proxy'] = self.proxy
connection_pool_kw['_proxy_headers'] = self.proxy_headers
super(ProxyManager, self).__init__(
num_pools, headers, **connection_pool_kw)
def connection_from_host(self, host, port=None, scheme='http'):
if scheme == "https":
return super(ProxyManager, self).connection_from_host(
host, port, scheme)
return super(ProxyManager, self).connection_from_host(
self.proxy.host, self.proxy.port, self.proxy.scheme)
def _set_proxy_headers(self, url, headers=None):
"""
@@ -171,22 +232,27 @@ class ProxyManager(RequestMethods):
"""
headers_ = {'Accept': '*/*'}
host = parse_url(url).host
if host:
headers_['Host'] = host
netloc = parse_url(url).netloc
if netloc:
headers_['Host'] = netloc
if headers:
headers_.update(headers)
return headers_
def urlopen(self, method, url, **kw):
def urlopen(self, method, url, redirect=True, **kw):
"Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute."
kw['assert_same_host'] = False
kw['headers'] = self._set_proxy_headers(url, headers=kw.get('headers'))
return self.proxy_pool.urlopen(method, url, **kw)
u = parse_url(url)
if u.scheme == "http":
# For proxied HTTPS requests, httplib sets the necessary headers
# on the CONNECT to the proxy. For HTTP, we'll definitely
# need to set 'Host' at the very least.
kw['headers'] = self._set_proxy_headers(url, kw.get('headers',
self.headers))
return super(ProxyManager, self).urlopen(method, url, redirect, **kw)
def proxy_from_url(url, **pool_kw):
proxy_pool = connection_from_url(url, **pool_kw)
return ProxyManager(proxy_pool)
def proxy_from_url(url, **kw):
return ProxyManager(proxy_url=url, **kw)