Mercurial > hg
annotate tests/sshprotoext.py @ 51618:ccf5c44092db stable
rust-cpython: don't swallow the dirstate error message
In case we do get a dirstate error, we want to get the full error message and
not just an opaque `Dirstate error`.
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Mon, 06 May 2024 15:30:21 +0200 |
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1 # sshprotoext.py - Extension to test behavior of SSH protocol |
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2 # |
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3 # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 # This extension replaces the SSH server started via `hg serve --stdio`. |
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9 # The server behaves differently depending on environment variables. |
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10 |
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11 |
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12 from mercurial import ( |
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13 error, |
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14 extensions, |
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15 registrar, |
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16 sshpeer, |
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17 wireprotoserver, |
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18 wireprotov1server, |
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19 ) |
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20 |
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21 configtable = {} |
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22 configitem = registrar.configitem(configtable) |
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23 |
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24 configitem(b'sshpeer', b'mode', default=None) |
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25 configitem(b'sshpeer', b'handshake-mode', default=None) |
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26 |
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27 |
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28 class bannerserver(wireprotoserver.sshserver): |
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29 """Server that sends a banner to stdout.""" |
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30 |
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31 def serve_forever(self): |
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32 for i in range(10): |
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33 self._ui.fout.write(b'banner: line %d\n' % i) |
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34 |
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35 super(bannerserver, self).serve_forever() |
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36 |
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37 |
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38 class prehelloserver(wireprotoserver.sshserver): |
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39 """Tests behavior when connecting to <0.9.1 servers. |
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40 |
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41 The ``hello`` wire protocol command was introduced in Mercurial |
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42 0.9.1. Modern clients send the ``hello`` command when connecting |
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43 to SSH servers. This mock server tests behavior of the handshake |
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44 when ``hello`` is not supported. |
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45 """ |
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46 |
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47 def serve_forever(self): |
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48 ui = self._ui |
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49 l = ui.fin.readline() |
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50 assert l == b'hello\n' |
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51 # Respond to unknown commands with an empty reply. |
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52 wireprotoserver._sshv1respondbytes(ui.fout, b'') |
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53 l = ui.fin.readline() |
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54 assert l == b'between\n' |
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55 proto = wireprotoserver.sshv1protocolhandler(ui, ui.fin, ui.fout) |
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56 rsp = wireprotov1server.dispatch(self._repo, proto, b'between') |
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57 wireprotoserver._sshv1respondbytes(ui.fout, rsp.data) |
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58 |
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59 super(prehelloserver, self).serve_forever() |
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60 |
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61 |
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62 def performhandshake(orig, ui, stdin, stdout, stderr): |
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63 """Wrapped version of sshpeer._performhandshake to send extra commands.""" |
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64 mode = ui.config(b'sshpeer', b'handshake-mode') |
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65 if mode == b'pre-no-args': |
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66 ui.debug(b'sending no-args command\n') |
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67 stdin.write(b'no-args\n') |
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68 stdin.flush() |
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69 return orig(ui, stdin, stdout, stderr) |
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70 elif mode == b'pre-multiple-no-args': |
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71 ui.debug(b'sending unknown1 command\n') |
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72 stdin.write(b'unknown1\n') |
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73 ui.debug(b'sending unknown2 command\n') |
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74 stdin.write(b'unknown2\n') |
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75 ui.debug(b'sending unknown3 command\n') |
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76 stdin.write(b'unknown3\n') |
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77 stdin.flush() |
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78 return orig(ui, stdin, stdout, stderr) |
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79 else: |
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80 raise error.ProgrammingError(b'unknown HANDSHAKECOMMANDMODE: %s' % mode) |
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81 |
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82 |
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83 def extsetup(ui): |
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84 # It's easier for tests to define the server behavior via environment |
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85 # variables than config options. This is because `hg serve --stdio` |
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86 # has to be invoked with a certain form for security reasons and |
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87 # `dummyssh` can't just add `--config` flags to the command line. |
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88 servermode = ui.environ.get(b'SSHSERVERMODE') |
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89 |
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90 if servermode == b'banner': |
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91 wireprotoserver.sshserver = bannerserver |
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92 elif servermode == b'no-hello': |
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93 wireprotoserver.sshserver = prehelloserver |
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94 elif servermode: |
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95 raise error.ProgrammingError(b'unknown server mode: %s' % servermode) |
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96 |
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97 peermode = ui.config(b'sshpeer', b'mode') |
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98 |
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99 if peermode == b'extra-handshake-commands': |
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100 extensions.wrapfunction(sshpeer, '_performhandshake', performhandshake) |
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101 elif peermode: |
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102 raise error.ProgrammingError(b'unknown peer mode: %s' % peermode) |