upstream/mercurial-mirror Files · tests/test-mq-qqueue.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.

Bryan O'Sullivan - - Load All Authors

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        $ echo "[extensions]" >> $HGRCPATH

        $ echo "mq=" >> $HGRCPATH

        $ hg init foo

        $ cd foo

        $ echo a > a

        $ hg ci -qAm a

      Default queue:

        $ hg qqueue

        patches (active)

        $ echo b > a

        $ hg qnew -fgDU somestuff

      Applied patches in default queue:

        $ hg qap

        somestuff

      Try to change patch (create succeeds, switch fails):

        $ hg qqueue foo --create

        abort: new queue created, but cannot make active as patches are applied

        [255]

        $ hg qqueue

        foo

        patches (active)

      Empty default queue:

        $ hg qpop

        popping somestuff

        patch queue now empty

      Switch queue:

        $ hg qqueue foo

        $ hg qqueue

        foo (active)

        patches

      List queues, quiet:

        $ hg qqueue --quiet

        foo

        patches

      Fail creating queue with already existing name:

        $ hg qqueue --create foo

        abort: queue "foo" already exists

        [255]

        $ hg qqueue

        foo (active)

        patches

      Create new queue for rename:

        $ hg qqueue --create bar

        $ hg qqueue

        bar (active)

        foo

        patches

      Rename queue, same name:

        $ hg qqueue --rename bar

        abort: can't rename "bar" to its current name

        [255]

      Rename queue to existing:

        $ hg qqueue --rename foo

        abort: queue "foo" already exists

        [255]

      Rename queue:

        $ hg qqueue --rename buz

        $ hg qqueue

        buz (active)

        foo

        patches

      Switch back to previous queue:

        $ hg qqueue foo

        $ hg qqueue --delete buz

        $ hg qqueue

        foo (active)

        patches

      Create queue for purge:

        $ hg qqueue --create purge-me

        $ hg qqueue

        foo

        patches

        purge-me (active)

      Create patch for purge:

        $ hg qnew patch-purge-me

        $ ls -1d .hg/patches-purge-me 2>/dev/null || true

        .hg/patches-purge-me

        $ hg qpop -a

        popping patch-purge-me

        patch queue now empty

      Purge queue:

        $ hg qqueue foo

        $ hg qqueue --purge purge-me

        $ hg qqueue

        foo (active)

        patches

        $ ls -1d .hg/patches-purge-me 2>/dev/null || true

      Unapplied patches:

        $ hg qun

        $ echo c > a

        $ hg qnew -fgDU otherstuff

      Fail switching back:

        $ hg qqueue patches

        abort: new queue created, but cannot make active as patches are applied

        [255]

      Fail deleting current:

        $ hg qqueue foo --delete

        abort: cannot delete currently active queue

        [255]

      Switch back and delete foo:

        $ hg qpop -a

        popping otherstuff

        patch queue now empty

        $ hg qqueue patches

        $ hg qqueue foo --delete

        $ hg qqueue

        patches (active)

      Tricky cases:

        $ hg qqueue store --create

        $ hg qnew journal

        $ hg qqueue

        patches

        store (active)

        $ hg qpop -a

        popping journal

        patch queue now empty

        $ hg qqueue patches

        $ hg qun

        somestuff

      Invalid names:

        $ hg qqueue test/../../bar --create

        abort: invalid queue name, may not contain the characters ":\/."

        [255]

        $ hg qqueue . --create

        abort: invalid queue name, may not contain the characters ":\/."

        [255]

        $ cd ..

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				$ echo "[extensions]" >> $HGRCPATH
				$ echo "mq=" >> $HGRCPATH

				$ hg init foo
				$ cd foo
				$ echo a > a
				$ hg ci -qAm a

				Default queue:

				$ hg qqueue
				patches (active)

				$ echo b > a
				$ hg qnew -fgDU somestuff

				Applied patches in default queue:

				$ hg qap
				somestuff

				Try to change patch (create succeeds, switch fails):

				$ hg qqueue foo --create
				abort: new queue created, but cannot make active as patches are applied
				[255]

				$ hg qqueue
				foo
				patches (active)

				Empty default queue:

				$ hg qpop
				popping somestuff
				patch queue now empty

				Switch queue:

				$ hg qqueue foo
				$ hg qqueue
				foo (active)
				patches

				List queues, quiet:

				$ hg qqueue --quiet
				foo
				patches

				Fail creating queue with already existing name:

				$ hg qqueue --create foo
				abort: queue "foo" already exists
				[255]

				$ hg qqueue
				foo (active)
				patches

				Create new queue for rename:

				$ hg qqueue --create bar

				$ hg qqueue
				bar (active)
				foo
				patches

				Rename queue, same name:

				$ hg qqueue --rename bar
				abort: can't rename "bar" to its current name
				[255]

				Rename queue to existing:

				$ hg qqueue --rename foo
				abort: queue "foo" already exists
				[255]

				Rename queue:

				$ hg qqueue --rename buz

				$ hg qqueue
				buz (active)
				foo
				patches

				Switch back to previous queue:

				$ hg qqueue foo
				$ hg qqueue --delete buz

				$ hg qqueue
				foo (active)
				patches

				Create queue for purge:

				$ hg qqueue --create purge-me

				$ hg qqueue
				foo
				patches
				purge-me (active)

				Create patch for purge:

				$ hg qnew patch-purge-me

				$ ls -1d .hg/patches-purge-me 2>/dev/null \|\| true
				.hg/patches-purge-me

				$ hg qpop -a
				popping patch-purge-me
				patch queue now empty

				Purge queue:

				$ hg qqueue foo
				$ hg qqueue --purge purge-me

				$ hg qqueue
				foo (active)
				patches

				$ ls -1d .hg/patches-purge-me 2>/dev/null \|\| true

				Unapplied patches:

				$ hg qun
				$ echo c > a
				$ hg qnew -fgDU otherstuff

				Fail switching back:

				$ hg qqueue patches
				abort: new queue created, but cannot make active as patches are applied
				[255]

				Fail deleting current:

				$ hg qqueue foo --delete
				abort: cannot delete currently active queue
				[255]

				Switch back and delete foo:

				$ hg qpop -a
				popping otherstuff
				patch queue now empty

				$ hg qqueue patches
				$ hg qqueue foo --delete
				$ hg qqueue
				patches (active)

				Tricky cases:

				$ hg qqueue store --create
				$ hg qnew journal

				$ hg qqueue
				patches
				store (active)

				$ hg qpop -a
				popping journal
				patch queue now empty

				$ hg qqueue patches
				$ hg qun
				somestuff

				Invalid names:

				$ hg qqueue test/../../bar --create
				abort: invalid queue name, may not contain the characters ":\/."
				[255]

				$ hg qqueue . --create
				abort: invalid queue name, may not contain the characters ":\/."
				[255]

				$ cd ..