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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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test-status-rev.t
162 lines | 6.4 KiB | text/troff | Tads3Lexer
Tests of 'hg status --rev <rev>' to make sure status between <rev> and '.' get
combined correctly with the dirstate status.
$ hg init
First commit
$ python $TESTDIR/generate-working-copy-states.py state 2 1
$ hg addremove --similarity 0
adding content1_content1_content1-tracked
adding content1_content1_content1-untracked
adding content1_content1_content3-tracked
adding content1_content1_content3-untracked
adding content1_content1_missing-tracked
adding content1_content1_missing-untracked
adding content1_content2_content1-tracked
adding content1_content2_content1-untracked
adding content1_content2_content2-tracked
adding content1_content2_content2-untracked
adding content1_content2_content3-tracked
adding content1_content2_content3-untracked
adding content1_content2_missing-tracked
adding content1_content2_missing-untracked
adding content1_missing_content1-tracked
adding content1_missing_content1-untracked
adding content1_missing_content3-tracked
adding content1_missing_content3-untracked
adding content1_missing_missing-tracked
adding content1_missing_missing-untracked
$ hg commit -m first
Second commit
$ python $TESTDIR/generate-working-copy-states.py state 2 2
$ hg addremove --similarity 0
removing content1_missing_content1-tracked
removing content1_missing_content1-untracked
removing content1_missing_content3-tracked
removing content1_missing_content3-untracked
removing content1_missing_missing-tracked
removing content1_missing_missing-untracked
adding missing_content2_content2-tracked
adding missing_content2_content2-untracked
adding missing_content2_content3-tracked
adding missing_content2_content3-untracked
adding missing_content2_missing-tracked
adding missing_content2_missing-untracked
$ hg commit -m second
Working copy
$ python $TESTDIR/generate-working-copy-states.py state 2 wc
$ hg addremove --similarity 0
adding content1_missing_content1-tracked
adding content1_missing_content1-untracked
adding content1_missing_content3-tracked
adding content1_missing_content3-untracked
adding content1_missing_missing-tracked
adding content1_missing_missing-untracked
adding missing_missing_content3-tracked
adding missing_missing_content3-untracked
adding missing_missing_missing-tracked
adding missing_missing_missing-untracked
$ hg forget *_*_*-untracked
$ rm *_*_missing-*
Status compared to parent of the working copy, i.e. the dirstate status
$ hg status -A --rev 1 'glob:missing_content2_content3-tracked'
M missing_content2_content3-tracked
$ hg status -A --rev 1 'glob:missing_content2_content2-tracked'
C missing_content2_content2-tracked
$ hg status -A --rev 1 'glob:missing_missing_content3-tracked'
A missing_missing_content3-tracked
$ hg status -A --rev 1 'glob:missing_missing_content3-untracked'
? missing_missing_content3-untracked
$ hg status -A --rev 1 'glob:missing_content2_*-untracked'
R missing_content2_content2-untracked
R missing_content2_content3-untracked
R missing_content2_missing-untracked
$ hg status -A --rev 1 'glob:missing_*_missing-tracked'
! missing_content2_missing-tracked
! missing_missing_missing-tracked
#if windows
$ hg status -A --rev 1 'glob:missing_missing_missing-untracked'
missing_missing_missing-untracked: The system cannot find the file specified
#else
$ hg status -A --rev 1 'glob:missing_missing_missing-untracked'
missing_missing_missing-untracked: No such file or directory
#endif
Status between first and second commit. Should ignore dirstate status.
$ hg status -A --rev 0:1 'glob:content1_content2_*'
M content1_content2_content1-tracked
M content1_content2_content1-untracked
M content1_content2_content2-tracked
M content1_content2_content2-untracked
M content1_content2_content3-tracked
M content1_content2_content3-untracked
M content1_content2_missing-tracked
M content1_content2_missing-untracked
$ hg status -A --rev 0:1 'glob:content1_content1_*'
C content1_content1_content1-tracked
C content1_content1_content1-untracked
C content1_content1_content3-tracked
C content1_content1_content3-untracked
C content1_content1_missing-tracked
C content1_content1_missing-untracked
$ hg status -A --rev 0:1 'glob:missing_content2_*'
A missing_content2_content2-tracked
A missing_content2_content2-untracked
A missing_content2_content3-tracked
A missing_content2_content3-untracked
A missing_content2_missing-tracked
A missing_content2_missing-untracked
$ hg status -A --rev 0:1 'glob:content1_missing_*'
R content1_missing_content1-tracked
R content1_missing_content1-untracked
R content1_missing_content3-tracked
R content1_missing_content3-untracked
R content1_missing_missing-tracked
R content1_missing_missing-untracked
$ hg status -A --rev 0:1 'glob:missing_missing_*'
Status compared to one revision back, checking that the dirstate status
is correctly combined with the inter-revision status
$ hg status -A --rev 0 'glob:content1_*_content[23]-tracked'
M content1_content1_content3-tracked
M content1_content2_content2-tracked
M content1_content2_content3-tracked
M content1_missing_content3-tracked
$ hg status -A --rev 0 'glob:content1_*_content1-tracked'
C content1_content1_content1-tracked
C content1_content2_content1-tracked
C content1_missing_content1-tracked
$ hg status -A --rev 0 'glob:missing_*_content?-tracked'
A missing_content2_content2-tracked
A missing_content2_content3-tracked
A missing_missing_content3-tracked
BROKEN: missing_content2_content[23]-untracked exist, so should be listed
$ hg status -A --rev 0 'glob:missing_*_content?-untracked'
? missing_missing_content3-untracked
$ hg status -A --rev 0 'glob:content1_*_*-untracked'
R content1_content1_content1-untracked
R content1_content1_content3-untracked
R content1_content1_missing-untracked
R content1_content2_content1-untracked
R content1_content2_content2-untracked
R content1_content2_content3-untracked
R content1_content2_missing-untracked
R content1_missing_content1-untracked
R content1_missing_content3-untracked
R content1_missing_missing-untracked
$ hg status -A --rev 0 'glob:*_*_missing-tracked'
! content1_content1_missing-tracked
! content1_content2_missing-tracked
! content1_missing_missing-tracked
! missing_content2_missing-tracked
! missing_missing_missing-tracked
$ hg status -A --rev 0 'glob:missing_*_missing-untracked'