1  #!/usr/bin/env python3
 2  # Copyright (c) 2017-2019 The Bitcoin Core developers
 3  # Distributed under the MIT software license, see the accompanying
 4  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 5  """Test the -uacomment option."""
 6  
 7  import re
 8  
 9  from test_framework.test_framework import BitcoinTestFramework
10  from test_framework.test_node import ErrorMatch
11  from test_framework.util import assert_equal
12  
13  
14  class UacommentTest(BitcoinTestFramework):
15      def set_test_params(self):
16          self.num_nodes = 1
17          self.setup_clean_chain = True
18  
19      def run_test(self):
20          self.log.info("test multiple -uacomment")
21          test_uacomment = self.nodes[0].getnetworkinfo()["subversion"][-12:-1]
22          assert_equal(test_uacomment, "(testnode0)")
23  
24          self.restart_node(0, ["-uacomment=foo"])
25          foo_uacomment = self.nodes[0].getnetworkinfo()["subversion"][-17:-1]
26          assert_equal(foo_uacomment, "(testnode0; foo)")
27  
28          self.log.info("test -uacomment max length")
29          self.stop_node(0)
30          expected = r"Error: Total length of network version string \([0-9]+\) exceeds maximum length \(256\). Reduce the number or size of uacomments."
31          self.nodes[0].assert_start_raises_init_error(["-uacomment=" + 'a' * 256], expected, match=ErrorMatch.FULL_REGEX)
32  
33          self.log.info("test -uacomment unsafe characters")
34          for unsafe_char in ['/', ':', '(', ')', '₿', '🏃']:
35              expected = r"Error: User Agent comment \(" + re.escape(unsafe_char) + r"\) contains unsafe characters."
36              self.nodes[0].assert_start_raises_init_error(["-uacomment=" + unsafe_char], expected, match=ErrorMatch.FULL_REGEX)
37  
38  
39  if __name__ == '__main__':
40      UacommentTest().main()