sslutil: print a warning when using TLS 1.0 on legacy Python
Mercurial now requires TLS 1.1+ when TLS 1.1+ is supported by the
client. Since we made the decision to require TLS 1.1+ when running
with modern Python versions, it makes sense to do something for
legacy Python versions that only support TLS 1.0.
Feature parity would be to prevent TLS 1.0 connections out of the
box and require a config option to enable them. However, this is
extremely user hostile since Mercurial wouldn't talk to https://
by default in these installations! I can easily see how someone
would do something foolish like use "--insecure" instead - and
that would be worse than allowing TLS 1.0!
This patch takes the compromise position of printing a warning when
performing TLS 1.0 connections when running on old Python
versions. While this warning is no more annoying than the
CA certificate / fingerprint warnings in Mercurial 3.8, we provide
a config option to disable the warning because to many people
upgrading Python to make the warning go away is not an available
recourse (unlike pinning fingerprints is for the CA warning).
The warning appears as optional output in a lot of tests.
#require test-repo
$ . "$TESTDIR/helpers-testrepo.sh"
$ cd "$TESTDIR"/..
$ hg files 'set:(**.py)' | sed 's|\\|/|g' | xargs python contrib/check-py3-compat.py
hgext/fsmonitor/pywatchman/__init__.py not using absolute_import
hgext/fsmonitor/pywatchman/__init__.py requires print_function
hgext/fsmonitor/pywatchman/capabilities.py not using absolute_import
hgext/fsmonitor/pywatchman/pybser.py not using absolute_import
i18n/check-translation.py not using absolute_import
setup.py not using absolute_import
tests/test-demandimport.py not using absolute_import
#if py3exe
$ hg files 'set:(**.py)' | sed 's|\\|/|g' | xargs $PYTHON3 contrib/check-py3-compat.py
doc/hgmanpage.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
hgext/acl.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/automv.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/blackbox.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/bugzilla.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/censor.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/chgserver.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/children.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/churn.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/clonebundles.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/color.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
hgext/convert/bzr.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/common.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/convcmd.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/cvs.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/cvsps.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/darcs.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/filemap.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/git.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/gnuarch.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/hg.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/monotone.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/p4.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/subversion.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/convert/transport.py: error importing module: <ImportError> No module named 'svn.client' (line *) (glob)
hgext/eol.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/extdiff.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/factotum.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/fetch.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/fsmonitor/state.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/fsmonitor/watchmanclient.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/gpg.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/graphlog.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/hgk.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/highlight/highlight.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/histedit.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/journal.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/keyword.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/basestore.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/lfcommands.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/lfutil.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/localstore.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/overrides.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/proto.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/remotestore.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/reposetup.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/storefactory.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/uisetup.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/largefiles/wirestore.py: error importing module: <SystemError> Parent module 'hgext.largefiles' not loaded, cannot perform relative import (line *) (glob)
hgext/mq.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/notify.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/pager.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/patchbomb.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/purge.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/rebase.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/record.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/relink.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/schemes.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/share.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/shelve.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/strip.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/transplant.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/win32mbcs.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
hgext/win32text.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/archival.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
mercurial/bookmarks.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/branchmap.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/bundle2.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
mercurial/bundlerepo.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/byterange.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/changegroup.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/changelog.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/cmdutil.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/commands.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
mercurial/commandserver.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/config.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/context.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/copies.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/crecord.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/dagparser.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/dagutil.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/destutil.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/dirstate.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/discovery.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/dispatch.py: error importing: <TypeError> str expected, not bytes (error at encoding.py:*) (glob)
mercurial/exchange.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/extensions.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/fancyopts.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/filelog.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/filemerge.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/fileset.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/formatter.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/graphmod.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/hbisect.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/help.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/hg.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/hgweb/common.py: error importing module: <ImportError> No module named 'BaseHTTPServer' (line *) (glob)
mercurial/hgweb/hgweb_mod.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hgweb/hgwebdir_mod.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hgweb/protocol.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hgweb/request.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hgweb/server.py: error importing module: <ImportError> No module named 'BaseHTTPServer' (line *) (glob)
mercurial/hgweb/webcommands.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hgweb/webutil.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hgweb/wsgicgi.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *) (glob)
mercurial/hook.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/httpconnection.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/httppeer.py: error importing: <TypeError> str expected, not bytes (error at i18n.py:*) (glob)
mercurial/keepalive.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/localrepo.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/lock.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/mail.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/manifest.py: error importing: <TypeError> getattr(): attribute name must be string (error at pycompat.py:*) (glob)
mercurial/match.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/mdiff.py: error importing: <TypeError> getattr(): attribute name must be string (error at pycompat.py:*) (glob)
mercurial/merge.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/minirst.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/namespaces.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/obsolete.py: error importing: <TypeError> getattr(): attribute name must be string (error at pycompat.py:*) (glob)
mercurial/patch.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/pathutil.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/peer.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/pure/mpatch.py: error importing module: <ImportError> cannot import name 'pycompat' (line *) (glob)
mercurial/pure/parsers.py: error importing module: <ImportError> No module named 'mercurial.pure.node' (line *) (glob)
mercurial/pushkey.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/pvec.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/registrar.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/repair.py: error importing module: <SyntaxError> invalid syntax (bundle2.py, line *) (line *) (glob)
mercurial/repoview.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/revlog.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/revset.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/scmposix.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/scmutil.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/scmwindows.py: error importing module: <ImportError> No module named '_winreg' (line *) (glob)
mercurial/similar.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/simplemerge.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/sshpeer.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/sshserver.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/sslutil.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/statichttprepo.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/store.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/streamclone.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/subrepo.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/tagmerge.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/tags.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/templatefilters.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/templatekw.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/templater.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/transaction.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/ui.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/unionrepo.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/url.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/util.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/verify.py: error importing: <TypeError> '_fields_' must be a sequence of (name, C type) pairs (error at osutil.py:*) (glob)
mercurial/win32.py: error importing module: <ImportError> No module named 'msvcrt' (line *) (glob)
mercurial/windows.py: error importing module: <ImportError> No module named '_winreg' (line *) (glob)
mercurial/wireproto.py: error importing module: <SyntaxError> invalid syntax (bundle2.py, line *) (line *) (glob)
#endif