upstream/mercurial-mirror Files · tests/test-changelog-exec.t

sslutil: require TLS 1.1+ when supported...

sslutil: require TLS 1.1+ when supported Currently, Mercurial will use TLS 1.0 or newer when connecting to remote servers, selecting the highest TLS version supported by both peers. On older Pythons, only TLS 1.0 is available. On newer Pythons, TLS 1.1 and 1.2 should be available. Security professionals recommend avoiding TLS 1.0 if possible. PCI DSS 3.1 "strongly encourages" the use of TLS 1.2. Known attacks like BEAST and POODLE exist against TLS 1.0 (although mitigations are available and properly configured servers aren't vulnerable). I asked Eric Rescorla - Mozilla's resident crypto expert - whether Mercurial should drop support for TLS 1.0. His response was "if you can get away with it." Essentially, a number of servers on the Internet don't support TLS 1.1+. This is why web browsers continue to support TLS 1.0 despite desires from security experts. This patch changes Mercurial's default behavior on modern Python versions to require TLS 1.1+, thus avoiding known security issues with TLS 1.0 and making Mercurial more secure by default. Rather than drop TLS 1.0 support wholesale, we still allow TLS 1.0 to be used if configured. This is a compromise solution - ideally we'd disallow TLS 1.0. However, since we're not sure how many Mercurial servers don't support TLS 1.1+ and we're not sure how much user inconvenience this change will bring, I think it is prudent to ship an escape hatch that still allows usage of TLS 1.0. In the default case our users get better security. In the worst case, they are no worse off than before this patch. This patch has no effect when running on Python versions that don't support TLS 1.1+. As the added test shows, connecting to a server that doesn't support TLS 1.1+ will display a warning message with a link to our wiki, where we can guide people to configure their client to allow less secure connections.

Matt Mackall - - Load All Authors

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      #require execbit

      b51a8138292a introduced a regression where we would mention in the

      changelog executable files added by the second parent of a merge. Test

      that that doesn't happen anymore

        $ hg init repo

        $ cd repo

        $ echo foo > foo

        $ hg ci -qAm 'add foo'

        $ echo bar > bar

        $ chmod +x bar

        $ hg ci -qAm 'add bar'

      manifest of p2:

        $ hg manifest

        bar

        foo

        $ hg up -qC 0

        $ echo >> foo

        $ hg ci -m 'change foo'

        created new head

      manifest of p1:

        $ hg manifest

        foo

        $ hg merge

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        (branch merge, don't forget to commit)

        $ chmod +x foo

        $ hg ci -m 'merge'

      this should not mention bar but should mention foo:

        $ hg tip -v

        changeset:   3:c53d17ff3380

        tag:         tip

        parent:      2:ed1b79f46b9a

        parent:      1:d394a8db219b

        user:        test

        date:        Thu Jan 01 00:00:00 1970 +0000

        files:       foo

        description:

        merge

        $ hg debugindex bar

           rev    offset  length  ..... linkrev nodeid       p1           p2 (re)

             0         0       5  .....       1 b004912a8510 000000000000 000000000000 (re)

        $ cd ..

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				#require execbit

				b51a8138292a introduced a regression where we would mention in the
				changelog executable files added by the second parent of a merge. Test
				that that doesn't happen anymore

				$ hg init repo
				$ cd repo
				$ echo foo > foo
				$ hg ci -qAm 'add foo'

				$ echo bar > bar
				$ chmod +x bar
				$ hg ci -qAm 'add bar'

				manifest of p2:

				$ hg manifest
				bar
				foo

				$ hg up -qC 0
				$ echo >> foo
				$ hg ci -m 'change foo'
				created new head

				manifest of p1:

				$ hg manifest
				foo

				$ hg merge
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				$ chmod +x foo
				$ hg ci -m 'merge'

				this should not mention bar but should mention foo:

				$ hg tip -v
				changeset: 3:c53d17ff3380
				tag: tip
				parent: 2:ed1b79f46b9a
				parent: 1:d394a8db219b
				user: test
				date: Thu Jan 01 00:00:00 1970 +0000
				files: foo
				description:
				merge



				$ hg debugindex bar
				rev offset length ..... linkrev nodeid p1 p2 (re)
				0 0 5 ..... 1 b004912a8510 000000000000 000000000000 (re)

				$ cd ..