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Proxy settings via environment variables can interfere with this test. The requests library will automatically pick up proxy settings from environment variables. Proxy settings can force the local connection over the proxy, which might not support that, then this fails with an error like 405 or others.
176 lines
6.1 KiB
Python
Executable file
176 lines
6.1 KiB
Python
Executable file
#!/usr/bin/env python3
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import inspect
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import logging
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import os
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import random
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import requests
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import socket
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import sys
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import tempfile
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import threading
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import time
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import unittest
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from unittest.mock import MagicMock, patch
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localmodule = os.path.realpath(
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os.path.join(os.path.dirname(inspect.getfile(inspect.currentframe())), '..')
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)
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print('localmodule: ' + localmodule)
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if localmodule not in sys.path:
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sys.path.insert(0, localmodule)
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from fdroidserver import common, net
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from pathlib import Path
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class RetryServer:
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"""A stupid simple HTTP server that can fail to connect.
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Proxy settings via environment variables can interfere with this
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test. The requests library will automatically pick up proxy
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settings from environment variables. Proxy settings can force the
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local connection over the proxy, which might not support that,
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then this fails with an error like 405 or others.
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"""
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def __init__(self, port=None, failures=3):
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self.port = port
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if self.port is None:
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self.port = random.randint(1024, 65535)
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self.failures = failures
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self.stop_event = threading.Event()
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threading.Thread(target=self.run_fake_server).start()
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def stop(self):
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self.stop_event.set()
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def run_fake_server(self):
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server_sock = socket.socket()
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server_sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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server_sock.bind(('127.0.0.1', self.port))
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server_sock.listen(5)
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server_sock.settimeout(5)
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time.sleep(0.001) # wait for it to start
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while not self.stop_event.is_set():
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self.failures -= 1
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conn = None
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try:
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conn, address = server_sock.accept()
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conn.settimeout(5)
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except TimeoutError:
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break
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if self.failures > 0:
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conn.close()
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continue
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conn.recv(8192) # request ignored
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self.reply = b"""HTTP/1.1 200 OK
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Date: Mon, 26 Feb 2024 09:00:14 GMT
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Connection: close
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Content-Type: text/html
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<HTML><BODY>Hello World!</HEAD></HTML>
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"""
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self.reply = self.reply.replace(b' ', b'') # dedent
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conn.sendall(self.reply)
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conn.shutdown(socket.SHUT_RDWR)
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conn.close()
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self.stop_event.wait(timeout=1)
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server_sock.shutdown(socket.SHUT_RDWR)
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server_sock.close()
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class NetTest(unittest.TestCase):
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basedir = Path(__file__).resolve().parent
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def setUp(self):
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logging.basicConfig(level=logging.DEBUG)
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self.tempdir = tempfile.TemporaryDirectory()
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os.chdir(self.tempdir.name)
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Path('tmp').mkdir()
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def tearDown(self):
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self.tempdir.cleanup()
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@patch('requests.get')
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def test_download_file_url_parsing(self, requests_get):
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# pylint: disable=unused-argument
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def _get(url, stream, allow_redirects, headers, timeout):
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return MagicMock()
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requests_get.side_effect = _get
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f = net.download_file('https://f-droid.org/repo/entry.jar', retries=0)
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requests_get.assert_called()
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self.assertTrue(os.path.exists(f))
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self.assertEqual('tmp/entry.jar', f)
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f = net.download_file(
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'https://d-05.example.com/custom/com.downloader.aegis-3175421.apk?_fn=QVBLUHVyZV92My4xNy41NF9hcGtwdXJlLmNvbS5hcGs&_p=Y29tLmFwa3B1cmUuYWVnb24&am=6avvTpfJ1dMl9-K6JYKzQw&arg=downloader%3A%2F%2Fcampaign%2F%3Futm_medium%3Ddownloader%26utm_source%3Daegis&at=1652080635&k=1f6e58465df3a441665e585719ab0b13627a117f&r=https%3A%2F%2Fdownloader.com%2Fdownloader-app.html%3Ficn%3Daegis%26ici%3Dimage_qr&uu=http%3A%2F%2F172.16.82.1%2Fcustom%2Fcom.downloader.aegis-3175421.apk%3Fk%3D3fb9c4ae0be578206f6a1c330736fac1627a117f',
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retries=0,
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)
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self.assertTrue(requests_get.called)
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self.assertTrue(os.path.exists(f))
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self.assertEqual('tmp/com.downloader.aegis-3175421.apk', f)
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@patch.dict(os.environ, clear=True)
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def test_download_file_retries(self):
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server = RetryServer()
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f = net.download_file('http://localhost:%d/f.txt' % server.port)
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# strip the HTTP headers and compare the reply
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self.assertEqual(server.reply.split(b'\n\n')[1], Path(f).read_bytes())
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server.stop()
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@patch.dict(os.environ, clear=True)
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def test_download_file_retries_not_forever(self):
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"""The retry logic should eventually exit with an error."""
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server = RetryServer(failures=5)
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with self.assertRaises(requests.exceptions.ConnectionError):
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net.download_file('http://localhost:%d/f.txt' % server.port)
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server.stop()
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@patch.dict(os.environ, clear=True)
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def test_download_using_mirrors_retries(self):
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server = RetryServer()
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f = net.download_using_mirrors(
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[
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'https://fake.com/f.txt', # 404 or 301 Redirect
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'https://httpbin.org/status/403',
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'https://httpbin.org/status/500',
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'http://localhost:1/f.txt', # ConnectionError
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'http://localhost:%d/should-succeed' % server.port,
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],
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)
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# strip the HTTP headers and compare the reply
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self.assertEqual(server.reply.split(b'\n\n')[1], Path(f).read_bytes())
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server.stop()
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@patch.dict(os.environ, clear=True)
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def test_download_using_mirrors_retries_not_forever(self):
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"""The retry logic should eventually exit with an error."""
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server = RetryServer(failures=5)
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with self.assertRaises(requests.exceptions.ConnectionError):
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net.download_using_mirrors(['http://localhost:%d/' % server.port])
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server.stop()
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if __name__ == "__main__":
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os.chdir(os.path.dirname(__file__))
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import argparse
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"-v",
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"--verbose",
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action="store_true",
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default=False,
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help="Spew out even more information than normal",
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)
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common.options = common.parse_args(parser)
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newSuite = unittest.TestSuite()
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newSuite.addTest(unittest.makeSuite(NetTest))
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unittest.main(failfast=False)
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