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139 lines
3.9 KiB
Python
139 lines
3.9 KiB
Python
from typing import Iterable, Optional
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from urllib.parse import urlsplit
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class HTTPMessage:
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"""Abstract class for HTTP messages."""
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def __init__(self, orig):
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self._orig = orig
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def iter_body(self, chunk_size: int) -> Iterable[bytes]:
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"""Return an iterator over the body."""
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raise NotImplementedError()
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def iter_lines(self, chunk_size: int) -> Iterable[bytes]:
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"""Return an iterator over the body yielding (`line`, `line_feed`)."""
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raise NotImplementedError()
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@property
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def headers(self) -> str:
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"""Return a `str` with the message's headers."""
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raise NotImplementedError()
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@property
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def encoding(self) -> Optional[str]:
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"""Return a `str` with the message's encoding, if known."""
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raise NotImplementedError()
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@property
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def body(self) -> bytes:
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"""Return a `bytes` with the message's body."""
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raise NotImplementedError()
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@property
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def content_type(self) -> str:
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"""Return the message content type."""
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ct = self._orig.headers.get('Content-Type', '')
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if not isinstance(ct, str):
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ct = ct.decode('utf8')
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return ct
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class HTTPResponse(HTTPMessage):
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"""A :class:`requests.models.Response` wrapper."""
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def iter_body(self, chunk_size=1):
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return self._orig.iter_content(chunk_size=chunk_size)
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def iter_lines(self, chunk_size):
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return ((line, b'\n') for line in self._orig.iter_lines(chunk_size))
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# noinspection PyProtectedMember
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@property
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def headers(self):
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original = self._orig.raw._original_response
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version = {
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9: '0.9',
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10: '1.0',
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11: '1.1',
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20: '2',
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}[original.version]
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status_line = f'HTTP/{version} {original.status} {original.reason}'
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headers = [status_line]
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try:
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# `original.msg` is a `http.client.HTTPMessage` on Python 3
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# `_headers` is a 2-tuple
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headers.extend(
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'%s: %s' % header for header in original.msg._headers)
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except AttributeError:
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# and a `httplib.HTTPMessage` on Python 2.x
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# `headers` is a list of `name: val<CRLF>`.
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headers.extend(h.strip() for h in original.msg.headers)
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return '\r\n'.join(headers)
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@property
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def encoding(self):
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return self._orig.encoding or 'utf8'
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@property
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def body(self):
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# Only now the response body is fetched.
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# Shouldn't be touched unless the body is actually needed.
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return self._orig.content
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class HTTPRequest(HTTPMessage):
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"""A :class:`requests.models.Request` wrapper."""
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def iter_body(self, chunk_size):
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yield self.body
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def iter_lines(self, chunk_size):
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yield self.body, b''
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@property
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def headers(self):
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url = urlsplit(self._orig.url)
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request_line = '{method} {path}{query} HTTP/1.1'.format(
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method=self._orig.method,
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path=url.path or '/',
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query='?' + url.query if url.query else ''
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)
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headers = dict(self._orig.headers)
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if 'Host' not in self._orig.headers:
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headers['Host'] = url.netloc.split('@')[-1]
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headers = [
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'%s: %s' % (
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name,
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value if isinstance(value, str) else value.decode('utf8')
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)
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for name, value in headers.items()
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]
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headers.insert(0, request_line)
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headers = '\r\n'.join(headers).strip()
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if isinstance(headers, bytes):
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# Python < 3
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headers = headers.decode('utf8')
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return headers
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@property
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def encoding(self):
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return 'utf8'
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@property
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def body(self):
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body = self._orig.body
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if isinstance(body, str):
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# Happens with JSON/form request data parsed from the command line.
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body = body.encode('utf8')
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return body or b''
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