297 lines
10 KiB
Python
297 lines
10 KiB
Python
#!/usr/bin/env python
|
|
# -*- Encoding: utf-8 -*-
|
|
###
|
|
# Copyright (c) 2008-2010 Terence Simpson
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of version 2 of the GNU General Public License as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
###
|
|
|
|
import sys, os
|
|
sys.path.append(os.path.dirname(__file__))
|
|
from icalendar import Calendar, cal, prop
|
|
from dateutil import tz as tzmod
|
|
from cStringIO import StringIO
|
|
import pytz
|
|
import urllib2
|
|
import datetime
|
|
import rruler
|
|
|
|
DEB_OBJ = None
|
|
|
|
SECONDS_PER_DAY=24*60*60
|
|
def seconds(timediff):
|
|
return SECONDS_PER_DAY * timediff.days + timediff.seconds
|
|
|
|
def toTz(date, tz):
|
|
assert isinstance(tz, datetime.tzinfo), "tz must be a tzinfo type"
|
|
if isinstance(date, datetime.datetime):
|
|
try:
|
|
return date.astimezone(tz)
|
|
except:
|
|
return datetime.datetime.combine(date.date(), datetime.time(date.time().hour, date.time().minute, date.time().second, tzinfo=tz))
|
|
elif isinstance(datetime.date):
|
|
return datetime.datetime.combine(date, datetime.time(0, 0, 0, tzinfo=tz))
|
|
|
|
class ICalReader:
|
|
def __init__(self, data):
|
|
self.events = []
|
|
self.timezones = {}
|
|
self.raw_data = data
|
|
self.readEvents()
|
|
|
|
def readEvents(self):
|
|
self.events = []
|
|
self.timezones = {}
|
|
parser = Calendar.from_string(self.raw_data)
|
|
tzs = parser.walk("vtimezone")
|
|
self.parseTzs(tzs)
|
|
events = parser.walk("vevent")
|
|
for event in events:
|
|
res = self.parseEvent(event)
|
|
if res:
|
|
self.events.append(res)
|
|
|
|
def parseTzs(self, tzs):
|
|
if not tzs:
|
|
return
|
|
for tz in tzs:
|
|
if 'X-LIC-LOCATION' in tz:
|
|
del tz['X-LIC-LOCATION']
|
|
data = ''.join([str(i) for i in tzs])
|
|
data = '\r\n'.join([i for i in data.splitlines() if i.strip()])
|
|
fd = StringIO(data)
|
|
times = tzmod.tzical(fd)
|
|
for tz in times.keys():
|
|
self.timezones[tz] = times.get(tz)
|
|
|
|
def parseEvent(self, e):
|
|
for k in ["dtstart", "dtend", "summary"]:
|
|
if not k in e:
|
|
return
|
|
if not isinstance(e['dtstart'].dt, datetime.datetime):
|
|
return
|
|
return ICalEvent.from_event(e, self)
|
|
startDate = endDate = rule = summary = None
|
|
startDate = self.parseDate(e.get("dtstart"))
|
|
endDate = self.parseDate(e.get("dtend"))
|
|
rule = e.get("RRULE")
|
|
summary = e.get("summary")
|
|
if e.get("exdate"):
|
|
event.addExceptionDate(e['EXDATE'].ical()[7:])
|
|
if not startDate or not endDate or not summary: # Bad event
|
|
return
|
|
|
|
event = ICalEvent()
|
|
event.raw_data = str(e)
|
|
event.summary = summary
|
|
event.startDate = startDate
|
|
event.endDate = endDate
|
|
if rule:
|
|
event.addRecurrenceRule(rule)
|
|
return event
|
|
|
|
def parseDate(self, date):
|
|
if not date:
|
|
return
|
|
tz = pytz.UTC
|
|
if 'tzid' in date.params:
|
|
tz = self.timezones[date.params['tzid']]
|
|
for attr in ['hour', 'minute', 'second']:
|
|
if not hasattr(date.dt, attr):
|
|
return
|
|
return toTz(date.dt, tz)
|
|
# return datetime.datetime(date.dt.year, date.dt.month, date.dt.day, date.dt.hour, date.dt.minute, date.dt.second, tzinfo=tz)
|
|
|
|
def selectEvents(self, selectFunction):
|
|
self.events.sort()
|
|
events = filter(selectFunction, self.events)
|
|
return events
|
|
|
|
def todaysEvents(self, event):
|
|
return event.startsToday()
|
|
|
|
def tomorrowsEvents(self, event):
|
|
return event.startsTomorrow()
|
|
|
|
def eventsFor(self, date):
|
|
self.events.sort()
|
|
ret = []
|
|
for event in self.events:
|
|
if event.startsOn(date):
|
|
ret.append(event)
|
|
return re
|
|
|
|
|
|
#class ICalEvent:
|
|
# def __init__(self):
|
|
# self.exceptionDates = []
|
|
# self.dateSet = None
|
|
#
|
|
# def __str__(self):
|
|
# return "%s (%s - %s)" % (self.summary, self.startDate, self.endDate)
|
|
|
|
class ICalEvent(cal.Event):
|
|
def __init__(self, *args, **kwargs):
|
|
self.exceptionDates = []
|
|
self.dateSet = None
|
|
self.__parent = super(ICalEvent, self)
|
|
self.__parent.__init__(self, *args, **kwargs)
|
|
|
|
@classmethod
|
|
def from_event(cls, event, parent):
|
|
global DEB_OBJ
|
|
x = cls(**dict(event))
|
|
x.__dict__ = event.__dict__
|
|
x.exceptionDates = []
|
|
x.dateSet = None
|
|
x.summary = x['summary']
|
|
x.timezone = x['dtstart'].dt.tzinfo
|
|
x.startDate = parent.parseDate(x['dtstart'])
|
|
x.endDate = parent.parseDate(x['dtend'])
|
|
if not x.timezone:
|
|
x.timezone = pytz.UTC
|
|
x.startDate = parent.parseDate(x['dtstart'])
|
|
x.endDate = parent.parseDate(x['dtend'])
|
|
x.raw_data = str(x)
|
|
if 'rrule' in event:
|
|
x.addRecurrenceRule(event['rrule'])
|
|
if x.summary == "Server Team Meeting":
|
|
DEB_OBJ = x
|
|
return x
|
|
|
|
def __str__(self):
|
|
return "%s (%s - %s)" % (self.summary, self.startDate, self.endDate)
|
|
|
|
def __eq__(self, otherEvent):
|
|
return self.startTime() == otherEvent.startTime()
|
|
|
|
def __lt__(self, otherEvent):
|
|
return self.startTime() < otherEvent.startTime()
|
|
|
|
def __gt__(self, otherEvent):
|
|
return self.startTime() > otherEvent.startTime()
|
|
|
|
def __ge__(self, otherEvent):
|
|
return self.startTime() >= otherEvent.startTime()
|
|
|
|
def __le__(self, otherEvent):
|
|
return self.startTime() <= otherEvent.startTime()
|
|
|
|
def addExceptionDate(self, date):
|
|
self.exceptionDates.append(date)
|
|
|
|
def addRecurrenceRule(self, rule):
|
|
self.dateSet = DateSet(self.startDate, self.endDate, rule)
|
|
|
|
def startsToday(self):
|
|
return self.startsOn(datetime.datetime.today())
|
|
|
|
def startsTomorrow(self):
|
|
tomorrow = datetime.datetime.today() + datetime.timedelta(1)
|
|
# tomorrow = datetime.datetime.fromtimestamp(time.time() + SECONDS_PER_DAY)
|
|
return self.startsOn(tomorrow)
|
|
|
|
def startsOn(self, date):
|
|
return (self.startDate.year == date.year and
|
|
self.startDate.month == date.month and
|
|
self.startDate.day == date.day or
|
|
(self.dateSet and self.dateSet.includes(date)))
|
|
|
|
def startTime(self):
|
|
now = datetime.datetime.now(pytz.UTC)
|
|
if self.dateSet and self.startDate < now:
|
|
dates = self.dateSet.getRecurrence()
|
|
for date in dates:
|
|
if date.date() >= now.date():
|
|
if date.date() > now.date() or (date.date() == now.date and date.astimezone(pytz.UTC).time() >= now.time()):
|
|
return toTz(datetime.datetime.combine(date,self.startDate.time()), self.startDate.tzinfo)
|
|
return self.startDate
|
|
|
|
def endTime(self):
|
|
now = datetime.datetime.now(pytz.UTC).date()
|
|
if self.dateSet and self.endDate.date() < now:
|
|
return toTz(datetime.datetime.combine(self.startTime().date(), self.endDate.time()), self.startDate.tzinfo)
|
|
return self.endDate
|
|
|
|
def schedule(self, timezone=None):
|
|
if not timezone:
|
|
return "%s UTC: %s" % (self.startTime().astimezone(pytz.UTC).strftime("%d %b %H:%M"), self.summary.replace('Meeting','').strip())
|
|
if isinstance(timezone, basestring):
|
|
return "%s: %s" % (self.startTime().astimezone(pytz.timezone(timezone)).strftime("%d %b %H:%M"), self.summary.replace('Meeting','').strip())
|
|
return "%s: %s" % (self.startTime().astimezone(timezone).strftime("%d %b %H:%M"), self.summary.replace('Meeting','').strip())
|
|
|
|
def is_on(self):
|
|
now = datetime.datetime.now(pytz.UTC)
|
|
return self.startTime() >= now and self.endTime() < now
|
|
|
|
def has_passed(self):
|
|
if self.dateSet:
|
|
return toTz(datetime.datetime.combine(self.startTime().date(), self.endDate.time()), self.startDate.tzinfo) < datetime.datetime.now(pytz.UTC)
|
|
return self.endDate < datetime.datetime.now(pytz.UTC)
|
|
|
|
def seconds_to_go(self):
|
|
return seconds(self.startTime() - datetime.datetime.now(pytz.UTC))
|
|
|
|
def seconds_ago(self):
|
|
return seconds(datetime.datetime.now(pytz.UTC) - self.endTime())
|
|
|
|
def time_to_go(self):
|
|
if self.endTime() < datetime.datetime.now(pytz.UTC):
|
|
return False
|
|
delta = self.startTime() - datetime.datetime.now(pytz.UTC)
|
|
s = ''
|
|
if delta.days:
|
|
if delta.days != 1:
|
|
s = 's'
|
|
return '%d day%s' % (delta.days, s)
|
|
h = ''
|
|
if delta.seconds > 7200:
|
|
s = 's'
|
|
if delta.seconds > 3600:
|
|
h = '%d hour%s ' % (int(delta.seconds/3600),s)
|
|
s = ''
|
|
minutes = (delta.seconds % 3600) / 60
|
|
if minutes != 1:
|
|
s = 's'
|
|
return '%s%d minute%s' % (h,minutes,s)
|
|
|
|
class DateSet:
|
|
def __init__(self, startDate, endDate, rule):
|
|
self.startDate = startDate
|
|
self.endDate = endDate
|
|
self.frequency = None
|
|
self.count = None
|
|
self.untilDate = None
|
|
self.byMonth = None
|
|
self.byDate = None
|
|
self.dates = None
|
|
self.parseRecurrenceRule(rule)
|
|
|
|
def parseRecurrenceRule(self, rule):
|
|
freq = rruler.rrule_map[rule.pop('freq')[0]]
|
|
now = datetime.datetime.now(self.startDate.tzinfo)
|
|
rule['dtstart'] = now
|
|
rule['until'] = now + datetime.timedelta(60)
|
|
self.recurrence = rruler.rrule_wrapper(freq, **rule)
|
|
|
|
def getRecurrence(self):
|
|
if not self.dates:
|
|
self.dates = []
|
|
for x in list(self.recurrence):
|
|
self.dates.append(toTz(x, self.startDate.tzinfo))
|
|
self.dates.append(self.startDate)
|
|
return self.dates
|
|
|
|
def includes(self, date):
|
|
if isinstance(date, datetime.datetime):
|
|
date = date.date()
|
|
return date in [x.date() for x in self.getRecurrence()]
|