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sslutil: abort when unable to verify peer connection (BC)...
sslutil: abort when unable to verify peer connection (BC) Previously, when we connected to a server and were unable to verify its certificate against a trusted certificate authority we would issue a warning and continue to connect. This is obviously not great behavior because the x509 certificate model is based upon trust of specific CAs. Failure to enforce that trust erodes security. This behavior was defined several years ago when Python did not support loading the system trusted CA store (Python 2.7.9's backports of Python 3's improvements to the "ssl" module enabled this). This commit changes behavior when connecting to abort if the peer certificate can't be validated. With an empty/default Mercurial configuration, the peer certificate can be validated if Python is able to load the system trusted CA store. Environments able to load the system trusted CA store include: * Python 2.7.9+ on most platforms and installations * Python 2.7 distributions with a modern ssl module (e.g. RHEL7's patched 2.7.5 package) * Python shipped on OS X Environments unable to load the system trusted CA store include: * Python 2.6 * Python 2.7 on many existing Linux installs (because they don't ship 2.7.9+ or haven't backported modern ssl module) * Python 2.7.9+ on some installs where Python is unable to locate the system CA store (this is hopefully rare) Users of these Pythongs will need to configure Mercurial to load the system CA store using web.cacerts. This should ideally be performed by packagers (by setting web.cacerts in the global/system hgrc file). Where Mercurial packagers aren't setting this, the linked URL in the new abort message can contain instructions for users. In the future, we may want to add more code for finding the system CA store. For example, many Linux distributions have the CA store at well-known locations (such as /etc/ssl/certs/ca-certificates.crt in the case of Ubuntu). This will enable CA loading to "just work" on more Python configurations and will be best for our users since they won't have to change anything after upgrading to a Mercurial with this patch. We may also want to consider distributing a trusted CA store with Mercurial. Although we should think long and hard about that because most systems have a global CA store and Mercurial should almost certainly use the same store used by everything else on the system.

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r29411:e1778b9c default
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dates.txt
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Some commands allow the user to specify a date, e.g.:
- backout, commit, import, tag: Specify the commit date.
- log, revert, update: Select revision(s) by date.
Many date formats are valid. Here are some examples:
- ``Wed Dec 6 13:18:29 2006`` (local timezone assumed)
- ``Dec 6 13:18 -0600`` (year assumed, time offset provided)
- ``Dec 6 13:18 UTC`` (UTC and GMT are aliases for +0000)
- ``Dec 6`` (midnight)
- ``13:18`` (today assumed)
- ``3:39`` (3:39AM assumed)
- ``3:39pm`` (15:39)
- ``2006-12-06 13:18:29`` (ISO 8601 format)
- ``2006-12-6 13:18``
- ``2006-12-6``
- ``12-6``
- ``12/6``
- ``12/6/6`` (Dec 6 2006)
- ``today`` (midnight)
- ``yesterday`` (midnight)
- ``now`` - right now
Lastly, there is Mercurial's internal format:
- ``1165411109 0`` (Wed Dec 6 13:18:29 2006 UTC)
This is the internal representation format for dates. The first number
is the number of seconds since the epoch (1970-01-01 00:00 UTC). The
second is the offset of the local timezone, in seconds west of UTC
(negative if the timezone is east of UTC).
The log command also accepts date ranges:
- ``<DATE`` - at or before a given date/time
- ``>DATE`` - on or after a given date/time
- ``DATE to DATE`` - a date range, inclusive
- ``-DAYS`` - within a given number of days of today