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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.

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r22046:7a9cbb31 default
r29560:303e9300 default
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test-flags.t
154 lines | 3.8 KiB | text/troff | Tads3Lexer
Matt Mackall
tests: replace exit 80 with #require
r22046 #require execbit
Mads Kiilerich
tests: use 'hghave execbit' for tests that manipulate x bit in file system
r15442
Nicolas Dumazet
tests: unify test-flags
r11792 $ umask 027
Martin Geisler
tests: remove redundant mkdir...
r13956
$ hg init test1
Nicolas Dumazet
tests: unify test-flags
r11792 $ cd test1
$ touch a b
$ hg add a b
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg ci -m "added a b"
Nicolas Dumazet
tests: unify test-flags
r11792
$ cd ..
$ hg clone test1 test3
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Martin Geisler
tests: remove redundant mkdir...
r13956
$ hg init test2
Nicolas Dumazet
tests: unify test-flags
r11792 $ cd test2
$ hg pull ../test1
pulling from ../test1
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 2 changes to 2 files
(run 'hg update' to get a working copy)
$ hg co
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ chmod +x a
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg ci -m "chmod +x a"
Nicolas Dumazet
tests: unify test-flags
r11792
the changelog should mention file a:
$ hg tip --template '{files}\n'
a
$ cd ../test1
$ echo 123 >>a
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg ci -m "a updated"
Nicolas Dumazet
tests: unify test-flags
r11792
$ hg pull ../test2
pulling from ../test2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg heads
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 2:7f4313b42a34
Nicolas Dumazet
tests: unify test-flags
r11792 tag: tip
Martin Geisler
tests: remove unneeded -d flags...
r12156 parent: 0:22a449e20da5
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: chmod +x a
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 1:c6ecefc45368
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: a updated
$ hg history
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 2:7f4313b42a34
Nicolas Dumazet
tests: unify test-flags
r11792 tag: tip
Martin Geisler
tests: remove unneeded -d flags...
r12156 parent: 0:22a449e20da5
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: chmod +x a
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 1:c6ecefc45368
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: a updated
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 0:22a449e20da5
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: added a b
$ hg -v merge
resolving manifests
Mads Kiilerich
merge: changing the mode of a file is also an update...
r18334 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
Nicolas Dumazet
tests: unify test-flags
r11792 (branch merge, don't forget to commit)
Mads Kiilerich
tests: better test coverage of merges of flags...
r18337 $ cat a
123
$ [ -x a ]
Nicolas Dumazet
tests: unify test-flags
r11792
$ cd ../test3
$ echo 123 >>b
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg ci -m "b updated"
Nicolas Dumazet
tests: unify test-flags
r11792
$ hg pull ../test2
pulling from ../test2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg heads
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 2:7f4313b42a34
Nicolas Dumazet
tests: unify test-flags
r11792 tag: tip
Martin Geisler
tests: remove unneeded -d flags...
r12156 parent: 0:22a449e20da5
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: chmod +x a
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 1:dc57ead75f79
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: b updated
$ hg history
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 2:7f4313b42a34
Nicolas Dumazet
tests: unify test-flags
r11792 tag: tip
Martin Geisler
tests: remove unneeded -d flags...
r12156 parent: 0:22a449e20da5
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: chmod +x a
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 1:dc57ead75f79
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: b updated
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 0:22a449e20da5
Nicolas Dumazet
tests: unify test-flags
r11792 user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Nicolas Dumazet
tests: unify test-flags
r11792 summary: added a b
$ hg -v merge
resolving manifests
Mads Kiilerich
merge: changing the mode of a file is also an update...
r18334 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
Nicolas Dumazet
tests: unify test-flags
r11792 (branch merge, don't forget to commit)
$ ls -l ../test[123]/a > foo
$ cut -b 1-10 < foo
-rwxr-x---
-rwxr-x---
-rwxr-x---
Sune Foldager
tests: fix deprecated use of hg debugdata/debugindex...
r14182 $ hg debugindex a
Bryan O'Sullivan
tests: reduce spurious failures when run with generaldelta...
r17132 rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 0 ..... 0 b80de5d13875 000000000000 000000000000 (re)
Sune Foldager
tests: fix deprecated use of hg debugdata/debugindex...
r14182 $ hg debugindex -R ../test2 a
Bryan O'Sullivan
tests: reduce spurious failures when run with generaldelta...
r17132 rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 0 ..... 0 b80de5d13875 000000000000 000000000000 (re)
Sune Foldager
tests: fix deprecated use of hg debugdata/debugindex...
r14182 $ hg debugindex -R ../test1 a
Bryan O'Sullivan
tests: reduce spurious failures when run with generaldelta...
r17132 rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 0 ..... 0 b80de5d13875 000000000000 000000000000 (re)
1 0 5 ..... 1 7fe919cc0336 b80de5d13875 000000000000 (re)
Mads Kiilerich
tests: add missing trailing 'cd ..'...
r16913
$ cd ..