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0acd3c12a2
As requested here: https://github.com/apache/cloudstack/pull/1495 No scripts are using perl so that install requirement can be removed. The new scripts are using standard python packages only. Includes extensive unit test.
143 lines
4.5 KiB
Python
Executable File
143 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import patchviasocket
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import getpass
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import os
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import socket
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import tempfile
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import time
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import threading
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import unittest
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KEY_DATA = "I luv\nCloudStack\n"
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CMD_DATA = "/run/this-for-me --please=TRUE! very%quickly"
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NON_EXISTING_FILE = "must-not-exist"
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def write_key_file():
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tmpfile = tempfile.mktemp(".sck")
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with open(tmpfile, "w") as f:
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f.write(KEY_DATA)
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return tmpfile
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class SocketThread(threading.Thread):
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def __init__(self):
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super(SocketThread, self).__init__()
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self._data = ""
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self._file = tempfile.mktemp(".sck")
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self._ready = False
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def data(self):
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return self._data
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def file(self):
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return self._file
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def wait_until_ready(self):
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while not self._ready:
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time.sleep(0.050)
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def run(self):
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TIMEOUT = 0.314 # Very short time for tests that don't write to socket.
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MAX_SIZE = 10 * 1024
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s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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s.bind(self._file)
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s.listen(1)
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s.settimeout(TIMEOUT)
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try:
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self._ready = True
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client, address = s.accept()
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self._data = client.recv(MAX_SIZE)
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client.close()
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except socket.timeout:
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pass
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s.close()
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os.remove(self._file)
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class TestPatchViaSocket(unittest.TestCase):
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def setUp(self):
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self._key_file = write_key_file()
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self._unreadable = write_key_file()
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os.chmod(self._unreadable, 0)
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self.assertFalse(os.path.exists(NON_EXISTING_FILE))
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self.assertNotEqual("root", getpass.getuser(), "must be non-root user (to test access denied errors)")
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def tearDown(self):
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os.remove(self._key_file)
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os.remove(self._unreadable)
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def test_read_file(self):
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pub_key = patchviasocket.read_pub_key(self._key_file)
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self.assertEqual(KEY_DATA, pub_key)
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def test_read_file_error(self):
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self.assertIsNone(patchviasocket.read_pub_key(NON_EXISTING_FILE))
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self.assertIsNone(patchviasocket.read_pub_key(self._unreadable))
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self.assertIsNone(patchviasocket.read_pub_key("/tmp")) # folder is not a file
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def test_write_to_socket(self):
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reader = SocketThread()
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reader.start()
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reader.wait_until_ready()
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self.assertEquals(0, patchviasocket.send_to_socket(reader.file(), self._key_file, CMD_DATA))
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reader.join()
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data = reader.data()
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self.assertIn(KEY_DATA, data)
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self.assertIn(CMD_DATA.replace("%", " "), data)
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self.assertNotIn("LUV", data)
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self.assertNotIn("very%quickly", data) # Testing substitution
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def test_host_key_error(self):
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reader = SocketThread()
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reader.start()
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reader.wait_until_ready()
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self.assertEquals(1, patchviasocket.send_to_socket(reader.file(), NON_EXISTING_FILE, CMD_DATA))
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reader.join() # timeout
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def test_nonexistant_socket_error(self):
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reader = SocketThread()
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reader.start()
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reader.wait_until_ready()
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self.assertEquals(1, patchviasocket.send_to_socket(NON_EXISTING_FILE, self._key_file, CMD_DATA))
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reader.join() # timeout
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def test_invalid_socket_error(self):
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reader = SocketThread()
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reader.start()
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reader.wait_until_ready()
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self.assertEquals(1, patchviasocket.send_to_socket(self._key_file, self._key_file, CMD_DATA))
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reader.join() # timeout
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def test_access_denied_socket_error(self):
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reader = SocketThread()
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reader.start()
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reader.wait_until_ready()
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self.assertEquals(1, patchviasocket.send_to_socket(self._unreadable, self._key_file, CMD_DATA))
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reader.join() # timeout
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if __name__ == '__main__':
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unittest.main()
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