tests/test-issue2137.t
author Sandu Turcan <idlsoft@gmail.com>
Tue, 03 May 2022 21:44:30 -0400
branchstable
changeset 49241 6b10151b9621
parent 36564 c4ccc73f9d49
permissions -rw-r--r--
narrow_widen_acl: enforce narrowacl in narrow_widen (SEC) Reviewer note: this was sent by the author as a simple bugfix, but can be considered a security patch, since it allows users to access things outside of the ACL, hence the (SEC) prefix. However, this affects the `narrow` extention which is still marked as experimental and has relatively few users aside from large companies with their own security layers on top from what we can gather. We feel (Alphare: or at least, I feel) like pinging the packaging list is enough in this case.
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https://bz.mercurial-scm.org/2137
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Setup:
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create a little extension that has 3 side-effects:
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1) ensure changelog data is not inlined
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2) make revlog to use lazyparser
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3) test that repo.lookup() works
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1 and 2 are preconditions for the bug; 3 is the bug.
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  $ cat > commitwrapper.py <<EOF
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  > from mercurial import extensions, node, revlog
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  > 
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  > def reposetup(ui, repo):
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  >     class wraprepo(repo.__class__):
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  >         def commit(self, *args, **kwargs):
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  >             result = super(wraprepo, self).commit(*args, **kwargs)
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  >             tip1 = node.short(repo.changelog.tip())
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  >             tip2 = node.short(repo.lookup(tip1))
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  >             assert tip1 == tip2
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  >             ui.write(b'new tip: %s\n' % tip1)
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  >             return result
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  >     repo.__class__ = wraprepo
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  > 
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  > def extsetup(ui):
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  >     revlog._maxinline = 8             # split out 00changelog.d early
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  >     revlog._prereadsize = 8           # use revlog.lazyparser
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  > EOF
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  $ cat >> $HGRCPATH <<EOF
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  > [extensions]
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  > commitwrapper = `pwd`/commitwrapper.py
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  > EOF
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  $ hg init repo1
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  $ cd repo1
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  $ echo a > a
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  $ hg commit -A -m'add a with a long commit message to make the changelog a bit bigger'
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  adding a
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  new tip: 553596fad57b
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Test that new changesets are visible to repo.lookup():
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  $ echo a >> a
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  $ hg commit -m'one more commit to demonstrate the bug'
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  new tip: 799ae3599e0e
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  $ hg tip
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  changeset:   1:799ae3599e0e
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  tag:         tip
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     one more commit to demonstrate the bug
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  $ cd ..