#?Copyright?2015?The?Chromium?Authors.?All?rights?reserved.
#?Use?of?this?source?code?is?governed?by?a?BSD-style?license?that?can?be
#?found?in?the?LICENSE?file.

“““Google?OAuth2?related?functions.“““

from?__future__?import?print_function

import?collections
import?datetime
import?functools
import?httplib2
import?json
import?logging
import?os

import?subprocess2


#?This?is?what?most?GAE?apps?require?for?authentication.
OAUTH_SCOPE_EMAIL?=?‘https://www.googleapis.com/auth/userinfo.email‘
#?Gerrit?and?Git?on?*.googlesource.com?require?this?scope.
OAUTH_SCOPE_GERRIT?=?‘https://www.googleapis.com/auth/gerritcodereview‘
#?Deprecated.?Use?OAUTH_SCOPE_EMAIL?instead.
OAUTH_SCOPES?=?OAUTH_SCOPE_EMAIL


#?Mockable?datetime.datetime.utcnow?for?testing.
def?datetime_now（）:
??return?datetime.datetime.utcnow（）


#?OAuth?access?token?with?its?expiration?time?（UTC?datetime?or?None?if?unknown）.
class?AccessToken（collections.namedtuple（‘AccessToken‘?[
????‘token‘
????‘expires_at‘
??]））:

??def?needs_refresh（self）:
????“““True?if?this?AccessToken?should?be?refreshed.“““
????if?self.expires_at?is?not?None:
??????#?Allow?30s?of?clock?skew?between?client?and?backend.
??????return?datetime_now（）?+?datetime.timedelta（seconds=30）?>=?self.expires_at
????#?Token?without?expiration?time?never?expires.
????return?False


class?LoginRequiredError（Exception）:
??“““Interaction?with?the?user?is?required?to?authenticate.“““

??def?__init__（self?scopes=OAUTH_SCOPE_EMAIL）:
????msg?=?（
????????‘You?are?not?logged?in.?Please?login?first?by?running:\n‘
????????‘??luci-auth?login?-scopes?%s‘?%?scopes）
????super（LoginRequiredError?self）.__init__（msg）


def?has_luci_context_local_auth（）:
??“““Returns?whether?LUCI_CONTEXT?should?be?used?for?ambient?authentication.“““
??ctx_path?=?os.environ.get（‘LUCI_CONTEXT‘）
??if?not?ctx_path:
????return?False
??try:
????with?open（ctx_path）?as?f:
??????loaded?=?json.load（f）
??except?（OSError?IOError?ValueError）:
????return?False
??return?loaded.get（‘local_auth‘?{}）.get（‘default_account_id‘）?is?not?None


class?Authenticator（object）:
??“““object?that?knows?how?to?refresh?access?tokens?when?needed.

??Args:
????scopes:?space?separated?oauth?scopes.?Defaults?to?OAUTH_SCOPE_EMAIL.
??“““

??def?__init__（self?scopes=OAUTH_SCOPE_EMAIL）:
????self._access_token?=?None
????self._scopes?=?scopes

??def?has_cached_credentials（self）:
????“““Returns?True?if?credentials?can?be?obtained.

????If?returns?False?get_access_token（）?later?will?probably?ask?for?interactive
????login?by?raising?LoginRequiredError.

????If?returns?True?get_access_token（）?won‘t?ask?for?interactive?login.
????“““
????return?bool（self._get_luci_auth_token（））

??def?get_access_token（self）:
????“““Returns?AccessToken?refreshing?it?if?necessary.

????Raises:
??????LoginRequiredError?if?user?interaction?is?required.
????“““
????if?self._access_token?and?not?self._access_token.needs_refresh（

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-01-08?17:48??depotTools\
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\
?????文件??????????23??2020-01-08?17:48??depotTools\.git\HEAD
?????文件?????????327??2020-01-08?17:48??depotTools\.git\config
?????文件??????????73??2020-01-08?17:48??depotTools\.git\description
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\hooks\
?????文件?????????478??2020-01-08?17:48??depotTools\.git\hooks\applypatch-msg.sample
?????文件?????????896??2020-01-08?17:48??depotTools\.git\hooks\commit-msg.sample
?????文件????????3327??2020-01-08?17:48??depotTools\.git\hooks\fsmonitor-watchman.sample
?????文件?????????189??2020-01-08?17:48??depotTools\.git\hooks\post-update.sample
?????文件?????????424??2020-01-08?17:48??depotTools\.git\hooks\pre-applypatch.sample
?????文件????????1638??2020-01-08?17:48??depotTools\.git\hooks\pre-commit.sample
?????文件????????1348??2020-01-08?17:48??depotTools\.git\hooks\pre-push.sample
?????文件????????4898??2020-01-08?17:48??depotTools\.git\hooks\pre-rebase.sample
?????文件?????????544??2020-01-08?17:48??depotTools\.git\hooks\pre-receive.sample
?????文件????????1492??2020-01-08?17:48??depotTools\.git\hooks\prepare-commit-msg.sample
?????文件????????3610??2020-01-08?17:48??depotTools\.git\hooks\update.sample
?????文件???????70577??2020-01-08?17:48??depotTools\.git\index
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\info\
?????文件?????????240??2020-01-08?17:48??depotTools\.git\info\exclude
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\logs\
?????文件?????????210??2020-01-08?17:48??depotTools\.git\logs\HEAD
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\logs\refs\
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\logs\refs\heads\
?????文件?????????210??2020-01-08?17:48??depotTools\.git\logs\refs\heads\master
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\logs\refs\remotes\
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\logs\refs\remotes\origin\
?????文件?????????210??2020-01-08?17:48??depotTools\.git\logs\refs\remotes\origin\HEAD
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\objects\
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\objects\info\
?????目錄???????????0??2020-01-08?17:48??depotTools\.git\objects\pack\
............此處省略769個文件信息