Prevent arbitrary files from being overwritten. There have been reports
that users have overwritten wallet files this way. It may also avoid
other security issues.
Fixes#9934. Adds mention to release notes and adds a test.
Github-Pull: #9937
Rebased-From: 0cd9273fd9
This commit moves functions start_node, start_nodes, stop_node and
stop_nodes functions into the BitcoinTestFramework class. It also moves
the bitcoind_processes dict and coverage variables into BitcoinTestFramework.
This commit fixes the module-level docstrings for the tests and helper
modules in qa. Many of these tests were uncommented previously - this
commit ensures that every test case has at least a minimum level of
commenting.
Increase wallet-dump RPC timeout from 30 seconds to 1 minute. This avoids a
timeout error that seemed to happen regularly (around 50% of builds) on a
particular jenkins server during the first getnewaddress RPC call made by the
test.
The failing stack trace looked like:
Unexpected exception caught during testing: timeout('timed out',)
File ".../bitcoin/qa/rpc-tests/test_framework/test_framework.py", line 146, in main
self.run_test()
File ".../bitcoin/qa/rpc-tests/wallet-dump.py", line 73, in run_test
addr = self.nodes[0].getnewaddress()
File ".../bitcoin/qa/rpc-tests/test_framework/coverage.py", line 49, in __call__
return_val = self.auth_service_proxy_instance.__call__(*args, **kwargs)
File ".../bitcoin/qa/rpc-tests/test_framework/authproxy.py", line 145, in __call__
response = self._request('POST', self.__url.path, postdata.encode('utf-8'))
File ".../bitcoin/qa/rpc-tests/test_framework/authproxy.py", line 121, in _request
return self._get_response()
File ".../bitcoin/qa/rpc-tests/test_framework/authproxy.py", line 160, in _get_response
http_response = self.__conn.getresponse()
File "/usr/lib/python3.4/http/client.py", line 1171, in getresponse
response.begin()
File "/usr/lib/python3.4/http/client.py", line 351, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.4/http/client.py", line 313, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/lib/python3.4/socket.py", line 374, in readinto
return self._sock.recv_into(b)
These are text files but their encoding does not depend on the locale.
Not all of them require utf8 but it is better to fix it at something
to remove potential unpredictability.
This is necessary on FreeBSD where no locale is set by default,
and apparently Python defaults not only the terminal encoding to the locale
but that of every text file. So without LOCALE environment it defaults text
file encoding to ASCII. This causes problems with e.g. `bitcoin.conf`.
Luckily the locale doesn't affect the default encoding for str.encode() and
bytes.decode() on Python 3, so this is the only change necessary.
Wladimir J. van der Laan