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50 lines
2.1 KiB
Python
50 lines
2.1 KiB
Python
# SPDX-FileCopyrightText: 2018-2023 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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#
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import socket
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from http.client import HTTPConnection, HTTPSConnection
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from utils import str_to_bytes
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from .transport import Transport
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class Transport_HTTP(Transport):
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def __init__(self, hostname, ssl_context=None):
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try:
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socket.gethostbyname(hostname.split(':')[0])
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except socket.gaierror:
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raise RuntimeError(f'Unable to resolve hostname: {hostname}')
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if ssl_context is None:
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self.conn = HTTPConnection(hostname, timeout=60)
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else:
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self.conn = HTTPSConnection(hostname, context=ssl_context, timeout=60)
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try:
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print(f'++++ Connecting to {hostname}++++')
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self.conn.connect()
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except Exception as err:
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raise RuntimeError('Connection Failure : ' + str(err))
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self.headers = {'Content-type': 'application/x-www-form-urlencoded','Accept': 'text/plain'}
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def _send_post_request(self, path, data):
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data = str_to_bytes(data) if isinstance(data, str) else data
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try:
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self.conn.request('POST', path, data, self.headers)
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response = self.conn.getresponse()
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# While establishing a session, the device sends the Set-Cookie header
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# with value 'session=cookie_session_id' in its first response of the session to the tool.
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# To maintain the same session, successive requests from the tool should include
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# an additional 'Cookie' header with the above recieved value.
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for hdr_key, hdr_val in response.getheaders():
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if hdr_key == 'Set-Cookie':
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self.headers['Cookie'] = hdr_val
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if response.status == 200:
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return response.read().decode('latin-1')
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except Exception as err:
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raise RuntimeError('Connection Failure : ' + str(err))
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raise RuntimeError('Server responded with error code ' + str(response.status))
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async def send_data(self, ep_name, data):
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return self._send_post_request('/' + ep_name, data)
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