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105 lines
3.0 KiB
Python
105 lines
3.0 KiB
Python
from __future__ import absolute_import, print_function, division
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from ... import utils
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import itertools
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from ...exceptions import HttpException
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from .. import CONTENT_MISSING
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def assemble_request(request):
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if request.content == CONTENT_MISSING:
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raise HttpException("Cannot assemble flow with CONTENT_MISSING")
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head = assemble_request_head(request)
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body = b"".join(assemble_body(request.headers, [request.data.content]))
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return head + body
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def assemble_request_head(request):
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first_line = _assemble_request_line(request.data)
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headers = _assemble_request_headers(request.data)
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return b"%s\r\n%s\r\n" % (first_line, headers)
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def assemble_response(response):
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if response.content == CONTENT_MISSING:
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raise HttpException("Cannot assemble flow with CONTENT_MISSING")
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head = assemble_response_head(response)
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body = b"".join(assemble_body(response.headers, [response.content]))
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return head + body
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def assemble_response_head(response):
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first_line = _assemble_response_line(response)
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headers = _assemble_response_headers(response)
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return b"%s\r\n%s\r\n" % (first_line, headers)
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def assemble_body(headers, body_chunks):
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if "chunked" in headers.get("transfer-encoding", "").lower():
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for chunk in body_chunks:
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if chunk:
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yield b"%x\r\n%s\r\n" % (len(chunk), chunk)
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yield b"0\r\n\r\n"
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else:
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for chunk in body_chunks:
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yield chunk
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def _assemble_request_line(request_data):
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"""
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Args:
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request_data (netlib.http.request.RequestData)
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"""
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form = request_data.first_line_format
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if form == "relative":
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return b"%s %s %s" % (
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request_data.method,
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request_data.path,
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request_data.http_version
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)
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elif form == "authority":
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return b"%s %s:%d %s" % (
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request_data.method,
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request_data.host,
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request_data.port,
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request_data.http_version
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)
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elif form == "absolute":
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return b"%s %s://%s:%d%s %s" % (
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request_data.method,
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request_data.scheme,
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request_data.host,
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request_data.port,
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request_data.path,
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request_data.http_version
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)
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else:
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raise RuntimeError("Invalid request form")
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def _assemble_request_headers(request_data):
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"""
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Args:
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request_data (netlib.http.request.RequestData)
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"""
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headers = request_data.headers.copy()
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if "host" not in headers and request_data.scheme and request_data.host and request_data.port:
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headers["host"] = utils.hostport(
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request_data.scheme,
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request_data.host,
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request_data.port
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)
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return bytes(headers)
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def _assemble_response_line(response):
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return b"%s %d %s" % (
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response.http_version,
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response.status_code,
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response.msg,
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)
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def _assemble_response_headers(response):
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return bytes(response.headers)
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