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https://github.com/morpheus65535/bazarr
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89 lines
3 KiB
Python
89 lines
3 KiB
Python
import requests
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from ._compat import urljoin
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class BaseUrlSession(requests.Session):
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"""A Session with a URL that all requests will use as a base.
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Let's start by looking at a few examples:
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.. code-block:: python
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>>> from requests_toolbelt import sessions
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>>> s = sessions.BaseUrlSession(
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... base_url='https://example.com/resource/')
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>>> r = s.get('sub-resource/', params={'foo': 'bar'})
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>>> print(r.request.url)
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https://example.com/resource/sub-resource/?foo=bar
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Our call to the ``get`` method will make a request to the URL passed in
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when we created the Session and the partial resource name we provide.
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We implement this by overriding the ``request`` method of the Session.
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Likewise, we override the ``prepare_request`` method so you can construct
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a PreparedRequest in the same way:
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.. code-block:: python
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>>> from requests import Request
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>>> from requests_toolbelt import sessions
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>>> s = sessions.BaseUrlSession(
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... base_url='https://example.com/resource/')
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>>> request = Request(method='GET', url='sub-resource/')
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>>> prepared_request = s.prepare_request(request)
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>>> r = s.send(prepared_request)
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>>> print(r.request.url)
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https://example.com/resource/sub-resource
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.. note::
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The base URL that you provide and the path you provide are **very**
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important.
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Let's look at another *similar* example
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.. code-block:: python
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>>> from requests_toolbelt import sessions
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>>> s = sessions.BaseUrlSession(
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... base_url='https://example.com/resource/')
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>>> r = s.get('/sub-resource/', params={'foo': 'bar'})
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>>> print(r.request.url)
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https://example.com/sub-resource/?foo=bar
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The key difference here is that we called ``get`` with ``/sub-resource/``,
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i.e., there was a leading ``/``. This changes how we create the URL
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because we rely on :mod:`urllib.parse.urljoin`.
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To override how we generate the URL, sub-class this method and override the
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``create_url`` method.
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Based on implementation from
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https://github.com/kennethreitz/requests/issues/2554#issuecomment-109341010
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"""
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base_url = None
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def __init__(self, base_url=None):
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if base_url:
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self.base_url = base_url
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super(BaseUrlSession, self).__init__()
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def request(self, method, url, *args, **kwargs):
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"""Send the request after generating the complete URL."""
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url = self.create_url(url)
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return super(BaseUrlSession, self).request(
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method, url, *args, **kwargs
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)
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def prepare_request(self, request, *args, **kwargs):
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"""Prepare the request after generating the complete URL."""
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request.url = self.create_url(request.url)
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return super(BaseUrlSession, self).prepare_request(
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request, *args, **kwargs
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)
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def create_url(self, url):
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"""Create the URL based off this partial path."""
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return urljoin(self.base_url, url)
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