Mercurial > hg
view tests/sshprotoext.py @ 42505:c1850798f995 stable
run-tests: stop matching line for missing feature
Before this change, the following unified test input would silently pass
$ echo foo
foo (false !)
After this change, the "foo" output is properly detected as unexpected.
The output of an handful of test had to be updated from broken conditional (that
ended up working by chance).
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 19 Jun 2019 05:37:33 +0200 |
parents | b4d85bc122bd |
children | 2372284d9457 |
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# sshprotoext.py - Extension to test behavior of SSH protocol # # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. # This extension replaces the SSH server started via `hg serve --stdio`. # The server behaves differently depending on environment variables. from __future__ import absolute_import from mercurial import ( error, extensions, registrar, sshpeer, wireprotoserver, wireprotov1server, ) configtable = {} configitem = registrar.configitem(configtable) configitem(b'sshpeer', b'mode', default=None) configitem(b'sshpeer', b'handshake-mode', default=None) class bannerserver(wireprotoserver.sshserver): """Server that sends a banner to stdout.""" def serve_forever(self): for i in range(10): self._fout.write(b'banner: line %d\n' % i) super(bannerserver, self).serve_forever() class prehelloserver(wireprotoserver.sshserver): """Tests behavior when connecting to <0.9.1 servers. The ``hello`` wire protocol command was introduced in Mercurial 0.9.1. Modern clients send the ``hello`` command when connecting to SSH servers. This mock server tests behavior of the handshake when ``hello`` is not supported. """ def serve_forever(self): l = self._fin.readline() assert l == b'hello\n' # Respond to unknown commands with an empty reply. wireprotoserver._sshv1respondbytes(self._fout, b'') l = self._fin.readline() assert l == b'between\n' proto = wireprotoserver.sshv1protocolhandler(self._ui, self._fin, self._fout) rsp = wireprotov1server.dispatch(self._repo, proto, b'between') wireprotoserver._sshv1respondbytes(self._fout, rsp.data) super(prehelloserver, self).serve_forever() def performhandshake(orig, ui, stdin, stdout, stderr): """Wrapped version of sshpeer._performhandshake to send extra commands.""" mode = ui.config(b'sshpeer', b'handshake-mode') if mode == b'pre-no-args': ui.debug(b'sending no-args command\n') stdin.write(b'no-args\n') stdin.flush() return orig(ui, stdin, stdout, stderr) elif mode == b'pre-multiple-no-args': ui.debug(b'sending unknown1 command\n') stdin.write(b'unknown1\n') ui.debug(b'sending unknown2 command\n') stdin.write(b'unknown2\n') ui.debug(b'sending unknown3 command\n') stdin.write(b'unknown3\n') stdin.flush() return orig(ui, stdin, stdout, stderr) else: raise error.ProgrammingError(b'unknown HANDSHAKECOMMANDMODE: %s' % mode) def extsetup(ui): # It's easier for tests to define the server behavior via environment # variables than config options. This is because `hg serve --stdio` # has to be invoked with a certain form for security reasons and # `dummyssh` can't just add `--config` flags to the command line. servermode = ui.environ.get(b'SSHSERVERMODE') if servermode == b'banner': wireprotoserver.sshserver = bannerserver elif servermode == b'no-hello': wireprotoserver.sshserver = prehelloserver elif servermode: raise error.ProgrammingError(b'unknown server mode: %s' % servermode) peermode = ui.config(b'sshpeer', b'mode') if peermode == b'extra-handshake-commands': extensions.wrapfunction(sshpeer, '_performhandshake', performhandshake) elif peermode: raise error.ProgrammingError(b'unknown peer mode: %s' % peermode)