annotate sat/tools/common/date_utils.py @ 2613:9680cd958529

plugin XEP-0045: fixed crash when muc service is not found
author Goffi <goffi@goffi.org>
date Thu, 21 Jun 2018 01:21:44 +0200
parents 3e4e78de9cca
children 56f94936df1e
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 """tools to help manipulating time and dates"""
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21
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22 from sat.core.constants import Const as C
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23 import datetime
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24 from dateutil import parser as dateutil_parser
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25 from babel import dates
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26 import calendar
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27 import time
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28
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29
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30 def date_parse(value):
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31 """Parse a date and return corresponding unix timestamp
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32
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33 @param value(unicode): date to parse, in any format supported by dateutil.parser
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34 @return (int): timestamp
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35 """
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36 return calendar.timegm(dateutil_parser.parse(unicode(value)).utctimetuple())
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37
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38
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39 def date_fmt(timestamp, fmt='short', date_only=False, auto_limit=7, auto_old_fmt='short', auto_new_fmt='relative', locale_str=C.DEFAULT_LOCALE):
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40 """format date according to locale
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41
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42 @param timestamp(basestring, int): unix time
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43 @param fmt(str): one of:
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44 - short: e.g. u'31/12/17'
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45 - medium: e.g. u'Apr 1, 2007'
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46 - long: e.g. u'April 1, 2007'
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47 - full: e.g. u'Sunday, April 1, 2007'
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48 - relative: format in relative time
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49 e.g.: 3 hours
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50 note that this format is not precise
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51 - iso: ISO 8601 format
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52 e.g.: u'2007-04-01T19:53:23Z'
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53 - auto: use auto_old_fmt if date is older than auto_limit
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54 else use auto_new_fmt
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55 - auto_day: shorcut to set auto format with change on day
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56 old format will be short, and new format will be time only
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57 or a free value which is passed to babel.dates.format_datetime
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58 @param date_only(bool): if True, only display date (not datetime)
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59 @param auto_limit (int): limit in days before using auto_old_fmt
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60 use 0 to have a limit at last midnight (day change)
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61 @param auto_old_fmt(unicode): format to use when date is older than limit
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62 @param auto_new_fmt(unicode): format to use when date is equal to or more recent
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63 than limit
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64
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65 """
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66 if fmt == 'auto_day':
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67 fmt, auto_limit, auto_old_fmt, auto_new_fmt = 'auto', 0, 'short', 'HH:mm'
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68 if fmt == 'auto':
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69 if auto_limit == 0:
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70 today = time.mktime(datetime.date.today().timetuple())
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71 if int(timestamp) < today:
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72 fmt = auto_old_fmt
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73 else:
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74 fmt = auto_new_fmt
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75 else:
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76 days_delta = (time.time() - int(timestamp)) / 3600
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77 if days_delta > (auto_limit or 7):
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78 fmt = auto_old_fmt
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79 else:
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80 fmt = auto_new_fmt
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81
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82 if fmt == 'relative':
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83 delta = int(timestamp) - time.time()
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84 return dates.format_timedelta(delta, granularity="minute", add_direction=True, locale=locale_str)
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85 elif fmt in ('short', 'long'):
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86 formatter = dates.format_date if date_only else dates.format_datetime
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87 return formatter(int(timestamp), format=fmt, locale=locale_str)
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88 elif fmt == 'iso':
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89 if date_only:
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90 fmt = 'yyyy-MM-dd'
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91 else:
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92 fmt = "yyyy-MM-ddTHH:mm:ss'Z'"
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93 return dates.format_datetime(int(timestamp), format=fmt)
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94 else:
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95 return dates.format_datetime(int(timestamp), format=fmt, locale=locale_str)