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