1 #!/usr/bin/env python 2 3 """ 4 Common handler functionality for different entities. 5 6 Copyright (C) 2014, 2015 Paul Boddie <paul@boddie.org.uk> 7 8 This program is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free Software 10 Foundation; either version 3 of the License, or (at your option) any later 11 version. 12 13 This program is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 15 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 16 details. 17 18 You should have received a copy of the GNU General Public License along with 19 this program. If not, see <http://www.gnu.org/licenses/>. 20 """ 21 22 from imiptools.data import get_address, get_uri, make_freebusy, to_part 23 from imiptools.dates import format_datetime 24 from imiptools.period import Period 25 26 class CommonFreebusy: 27 28 "Common free/busy mix-in." 29 30 def request(self): 31 32 """ 33 Respond to a request by preparing a reply containing free/busy 34 information for each indicated attendee. 35 """ 36 37 oa = self.require_organiser_and_attendees() 38 if not oa: 39 return 40 41 (organiser, organiser_attr), attendees = oa 42 43 # Get the details for each attendee. 44 45 responses = [] 46 rwrite = responses.append 47 48 # For replies, the organiser and attendee are preserved. 49 50 for attendee, attendee_attr in attendees.items(): 51 freebusy = self.store.get_freebusy(attendee) 52 53 # Indicate the actual sender of the reply. 54 55 if self.messenger: 56 attendee_attr["SENT-BY"] = get_uri(self.messenger.sender) 57 58 tzid = self.obj.get_tzid() or self.get_tzid() 59 dtstart = self.obj.get_datetime("DTSTART") 60 dtend = self.obj.get_datetime("DTEND") 61 period = dtstart and dtend and Period(dtstart, dtend, tzid) or None 62 63 rwrite(make_freebusy(freebusy, self.uid, organiser, organiser_attr, attendee, attendee_attr, period)) 64 65 # Return the reply. 66 67 self.add_result("REPLY", [get_address(organiser)], to_part("REPLY", responses)) 68 69 # vim: tabstop=4 expandtab shiftwidth=4