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129 lines
3.3 KiB
Python
129 lines
3.3 KiB
Python
"""
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Primitive replacement for requests to avoid extra dependency.
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Avoids use of urllib2 due to lack of SNI support.
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"""
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from __future__ import absolute_import, print_function
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import json
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try:
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from urllib import urlencode
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except ImportError:
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# noinspection PyCompatibility, PyUnresolvedReferences
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from urllib.parse import urlencode # pylint: disable=locally-disabled, import-error, no-name-in-module
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try:
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# noinspection PyCompatibility
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from urlparse import urlparse
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except ImportError:
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# noinspection PyCompatibility, PyUnresolvedReferences
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from urllib.parse import urlparse # pylint: disable=locally-disabled, ungrouped-imports
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from lib.util import (
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CommonConfig,
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ApplicationError,
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run_command,
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)
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class HttpClient(object):
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"""Make HTTP requests via curl."""
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def __init__(self, args, always=False):
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"""
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:type args: CommonConfig
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:type always: bool
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"""
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self.args = args
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self.always = always
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def get(self, url):
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"""
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:type url: str
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:rtype: HttpResponse
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"""
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return self.request('GET', url)
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def delete(self, url):
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"""
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:type url: str
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:rtype: HttpResponse
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"""
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return self.request('DELETE', url)
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def put(self, url, data=None, headers=None):
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"""
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:type url: str
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:type data: str | None
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:type headers: dict[str, str] | None
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:rtype: HttpResponse
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"""
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return self.request('PUT', url, data, headers)
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def request(self, method, url, data=None, headers=None):
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"""
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:type method: str
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:type url: str
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:type data: str | None
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:type headers: dict[str, str] | None
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:rtype: HttpResponse
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"""
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cmd = ['curl', '-s', '-S', '-i', '-X', method]
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if headers is None:
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headers = {}
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headers['Expect'] = '' # don't send expect continue header
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for header in headers.keys():
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cmd += ['-H', '%s: %s' % (header, headers[header])]
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if data is not None:
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cmd += ['-d', data]
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cmd += [url]
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stdout, _ = run_command(self.args, cmd, capture=True, always=self.always, cmd_verbosity=2)
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if self.args.explain and not self.always:
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return HttpResponse(200, '')
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header, body = stdout.split('\r\n\r\n', 1)
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response_headers = header.split('\r\n')
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first_line = response_headers[0]
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http_response = first_line.split(' ')
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status_code = int(http_response[1])
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return HttpResponse(status_code, body)
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class HttpResponse(object):
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"""HTTP response from curl."""
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def __init__(self, status_code, response):
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"""
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:type status_code: int
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:type response: str
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"""
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self.status_code = status_code
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self.response = response
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def json(self):
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"""
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:rtype: any
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"""
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try:
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return json.loads(self.response)
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except ValueError:
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raise HttpError(self.status_code, 'Cannot parse response as JSON:\n%s' % self.response)
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class HttpError(ApplicationError):
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"""HTTP response as an error."""
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def __init__(self, status, message):
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"""
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:type status: int
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:type message: str
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"""
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super(HttpError, self).__init__('%s: %s' % (status, message))
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self.status = status
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