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import threading
import json
from collections import defaultdict
from contextlib import contextmanager
from http import HTTPStatus
from http.cookies import SimpleCookie
from http.server import HTTPServer, BaseHTTPRequestHandler
from urllib.parse import urlparse, parse_qs
import pytest
class TestHandler(BaseHTTPRequestHandler):
handlers = defaultdict(dict)
@classmethod
def handler(cls, method, path):
def inner(func):
cls.handlers[method][path] = func
return func
return inner
def do_generic(self):
parse_result = urlparse(self.path)
func = self.handlers[self.command].get(parse_result.path)
if func is None:
return self.send_error(HTTPStatus.NOT_FOUND)
return func(self)
do_GET = do_generic
do_POST = do_generic
@TestHandler.handler('GET', '/headers')
def get_headers(handler):
handler.send_response(200)
for key, value in handler.headers.items():
handler.send_header(key, value)
handler.send_header('Content-Length', 0)
handler.end_headers()
@TestHandler.handler('GET', '/drip')
def chunked_drip(handler):
handler.send_response(200)
accept = handler.headers.get('Accept')
if accept is not None:
handler.send_header('Content-Type', accept)
handler.send_header('Transfer-Encoding', 'chunked')
handler.end_headers()
for _ in range(3):
body = 'test\n'
handler.wfile.write(f'{len(body):X}\r\n{body}\r\n'.encode('utf-8'))
handler.wfile.write('0\r\n\r\n'.encode('utf-8'))
@TestHandler.handler('GET', '/stream/encoding/random')
def random_encoding(handler):
from tests.fixtures import ASCII_FILE_CONTENT, FILE_CONTENT as UNICODE_FILE_CONTENT
handler.send_response(200)
handler.send_header('Transfer-Encoding', 'chunked')
handler.end_headers()
for body in [
ASCII_FILE_CONTENT,
ASCII_FILE_CONTENT,
UNICODE_FILE_CONTENT,
UNICODE_FILE_CONTENT,
UNICODE_FILE_CONTENT,
]:
body += "\n"
handler.wfile.write(f'{len(body.encode()):X}\r\n{body}\r\n'.encode())
handler.wfile.write('0\r\n\r\n'.encode('utf-8'))
@TestHandler.handler('POST', '/status/msg')
def status_custom_msg(handler):
content_len = int(handler.headers.get('content-length', 0))
post_body = handler.rfile.read(content_len).decode()
handler.send_response(200, post_body)
handler.end_headers()
@TestHandler.handler('GET', '/cookies')
def get_cookies(handler):
cookies = {
'cookies': {
key: cookie.value
for key, cookie in SimpleCookie(handler.headers.get('Cookie')).items()
}
}
payload = json.dumps(cookies)
handler.send_response(200)
handler.send_header('Content-Length', len(payload))
handler.send_header('Content-Type', 'application/json')
handler.end_headers()
handler.wfile.write(payload.encode('utf-8'))
@TestHandler.handler('GET', '/cookies/set')
def set_cookies(handler):
options = parse_qs(urlparse(handler.path).query)
handler.send_response(200)
for cookie, [value] in options.items():
handler.send_header('Set-Cookie', f'{cookie}={value}')
handler.end_headers()
@TestHandler.handler('GET', '/cookies/set-and-redirect')
def set_cookie_and_redirect(handler):
handler.send_response(302)
redirect_to = handler.headers.get('X-Redirect-To', '/headers')
handler.send_header('Location', redirect_to)
raw_cookies = handler.headers.get('X-Cookies', 'a=b')
for cookie in raw_cookies.split(', '):
handler.send_header('Set-Cookie', cookie)
handler.end_headers()
@contextmanager
def _http_server():
server = HTTPServer(('localhost', 0), TestHandler)
thread = threading.Thread(target=server.serve_forever)
thread.start()
yield server
server.shutdown()
thread.join()
@pytest.fixture(scope="function")
def http_server():
"""A custom HTTP server implementation for our tests, that is
built on top of the http.server module. Handy when we need to
deal with details which httpbin can not capture."""
with _http_server() as server:
yield '{0}:{1}'.format(*server.socket.getsockname())
@pytest.fixture(scope="function")
def localhost_http_server():
"""Just like the http_server, but uses the static
`localhost` name for the host."""
with _http_server() as server:
yield 'localhost:{1}'.format(*server.socket.getsockname())
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