""" SleekXMPP: The Sleek XMPP Library Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout This file is part of SleekXMPP. See the file LICENSE for copying permission. """ import logging import datetime as dt from sleekxmpp.plugins.base import base_plugin from sleekxmpp.thirdparty import tzutc, tzoffset, parse_iso # ===================================================================== # To make it easier for stanzas without direct access to plugin objects # to use the XEP-0082 utility methods, we will define them as top-level # functions and then just reference them in the plugin itself. def parse(time_str): """ Convert a string timestamp into a datetime object. Arguments: time_str -- A formatted timestamp string. """ return parse_iso(time_str) def format_date(time_obj): """ Return a formatted string version of a date object. Format: YYYY-MM-DD Arguments: time_obj -- A date or datetime object. """ if isinstance(time_obj, dt.datetime): time_obj = time_obj.date() return time_obj.isoformat() def format_time(time_obj): """ Return a formatted string version of a time object. format: hh:mm:ss[.sss][TZD] arguments: time_obj -- A time or datetime object. """ if isinstance(time_obj, dt.datetime): time_obj = time_obj.timetz() timestamp = time_obj.isoformat() if time_obj.tzinfo == tzutc(): timestamp = timestamp[:-6] return '%sZ' % timestamp return timestamp def format_datetime(time_obj): """ Return a formatted string version of a datetime object. Format: YYYY-MM-DDThh:mm:ss[.sss]TZD arguments: time_obj -- A datetime object. """ timestamp = time_obj.isoformat('T') if time_obj.tzinfo == tzutc(): timestamp = timestamp[:-6] return '%sZ' % timestamp return timestamp def date(year=None, month=None, day=None): """ Create a date only timestamp for the given instant. Unspecified components default to their current counterparts. Arguments: year -- Integer value of the year (4 digits) month -- Integer value of the month day -- Integer value of the day of the month. """ today = dt.datetime.today() if year is None: year = today.year if month is None: month = today.month if day is None: day = today.day return format_date(dt.date(year, month, day)) def time(hour=None, min=None, sec=None, micro=None, offset=None): """ Create a time only timestamp for the given instant. Unspecified components default to their current counterparts. Arguments: hour -- Integer value of the hour. min -- Integer value of the number of minutes. sec -- Integer value of the number of seconds. micro -- Integer value of the number of microseconds. offset -- Either a positive or negative number of seconds to offset from UTC to match a desired timezone, or a tzinfo object. """ now = dt.datetime.utcnow() if hour is None: hour = now.hour if min is None: min = now.minute if sec is None: sec = now.second if micro is None: micro = now.microsecond if offset is None: offset = tzutc() elif not isinstance(offset, dt.tzinfo): offset = tzoffset(None, offset) time = dt.time(hour, min, sec, micro, offset) return format_time(time) def datetime(year=None, month=None, day=None, hour=None, min=None, sec=None, micro=None, offset=None, separators=True): """ Create a datetime timestamp for the given instant. Unspecified components default to their current counterparts. Arguments: year -- Integer value of the year (4 digits) month -- Integer value of the month day -- Integer value of the day of the month. hour -- Integer value of the hour. min -- Integer value of the number of minutes. sec -- Integer value of the number of seconds. micro -- Integer value of the number of microseconds. offset -- Either a positive or negative number of seconds to offset from UTC to match a desired timezone, or a tzinfo object. """ now = dt.datetime.utcnow() if year is None: year = now.year if month is None: month = now.month if day is None: day = now.day if hour is None: hour = now.hour if min is None: min = now.minute if sec is None: sec = now.second if micro is None: micro = now.microsecond if offset is None: offset = tzutc() elif not isinstance(offset, dt.tzinfo): offset = tzoffset(None, offset) date = dt.datetime(year, month, day, hour, min, sec, micro, offset) return format_datetime(date) class xep_0082(base_plugin): """ XEP-0082: XMPP Date and Time Profiles XMPP uses a subset of the formats allowed by ISO 8601 as a matter of pragmatism based on the relatively few formats historically used by the XMPP. Also see <http://www.xmpp.org/extensions/xep-0082.html>. Methods: date -- Create a time stamp using the Date profile. datetime -- Create a time stamp using the DateTime profile. time -- Create a time stamp using the Time profile. format_date -- Format an existing date object. format_datetime -- Format an existing datetime object. format_time -- Format an existing time object. parse -- Convert a time string into a Python datetime object. """ def plugin_init(self): """Start the XEP-0082 plugin.""" self.xep = '0082' self.description = 'XMPP Date and Time Profiles' self.date = date self.datetime = datetime self.time = time self.format_date = format_date self.format_datetime = format_datetime self.format_time = format_time self.parse = parse