Removed functions to do with Outlook ICS Files

[frenchie/icalparse.git] / parserrules.py

diff --git a/parserrules.py b/parserrules.py
index 0ac3d97..a2175fe 100644 (file)
--- a/parserrules.py
+++ b/parserrules.py
@@ -28,6 +28,9 @@
 
 import vobject
 
+ruleConfig = {}
+ruleConfig["defaultTZ"] = "UTC"
+
 def facebookOrganiser(cal):
        '''Adds organiser details to the body of facebook calendars.'''
 
@@ -36,11 +39,14 @@ def facebookOrganiser(cal):
 
        for event in cal.vevent_list:
                if not event.contents.has_key(u'organizer'): continue
-               organizer = "Organised by: " + event.organizer.cn_param + " ("
-               organizer += event.organizer.value.lstrip('MAILTO:') + ")\n\n"
-
-               event.description.value = organizer + event.description.value
-
+               try:
+                       a = event.organizer.cn_paramlist
+                       organizer = "Organised by: " + event.organizer.cn_param + " ("
+                       organizer += event.organizer.value.lstrip('MAILTO:') + ")\n\n"
+                       event.description.value = organizer + event.description.value
+               except AttributeError:
+                       organizer = "Organized by: " + event.organizer.value
+                       event.description.value = organizer + "\n\n" + event.description.value
        return cal
 
 def whatPrivacy(cal):
@@ -48,47 +54,72 @@ def whatPrivacy(cal):
 
        for event in cal.vevent_list:
                if event.contents.has_key(u'class'):
-                       del event.contents[u'class']
                        # Bit of a hack as class is a reserved word in python
+                       del event.contents[u'class']
                        event.add('class').value = "PUBLIC"
 
        return cal
 
-def dropMSKeys(cal):
-       '''Drops microsoft keys, good for outlook, just bandwidth when not.'''
-
-       eventBlacklist = [x.lower() for x in [
-               "X-ALT-DESC",
-               "X-MICROSOFT-CDO-BUSYSTATUS",
-               "X-MICROSOFT-CDO-IMPORTANCE",
-               "X-MICROSOFT-DISALLOW-COUNTER",
-               "X-MS-OLK-ALLOWEXTERNCHECK",
-               "X-MS-OLK-AUTOSTARTCHECK",
-               "X-MS-OLK-CONFTYPE",
-               "X-MS-OLK-AUTOFILLLOCATION"
-       ]]
-
-       vcalBlacklist = [x.lower() for x in [
-       "X-CALEND",
-       "X-CALSTART",
-       "X-CLIPEND",
-       "X-CLIPSTART",
-       "X-MS-OLK-WKHRDAYS",
-       "X-MS-OLK-WKHREND",
-       "X-MS-OLK-WKHRSTART",
-       "X-OWNER",
-       "X-PRIMARY-CALENDAR",
-       "X-PUBLISHED-TTL",
-       "X-WR-CALDESC",
-       "X-WR-CALNAME",
-       "X-WR-RELCALID"
-       ]]
+def exDate(cal):
+       '''Replacing multi-value EXDATES with multiple single-value EXDATES'''
+
+       from datetime import datetime
+       from pytz import timezone
+
+       default = timezone(ruleConfig["defaultTZ"])
+
+       for event in cal.vevent_list:
+               if not event.contents.has_key(u'exdate'): continue
+               dates = event.exdate.value
+
+               del event.contents[u'exdate']
+
+               for date in dates:
+                       if isinstance(date, datetime):
+                               if date.tzinfo is None: date = date.replace(tzinfo = default)
+                               date = date.astimezone(vobject.icalendar.utc)
+                       entry = event.add(u'exdate')
+                       entry.value = [date]
+
+       return cal
+
+def utcise(cal):
+       '''Removing local timezones in favour of UTC. If the remote calendar specifies a timezone
+       then use it, otherwise assume it's in the user-specified or default values'''
+
+       from datetime import datetime
+       from pytz import timezone
+
+       default = timezone(ruleConfig["defaultTZ"])
 
        for event in cal.vevent_list:
-               for blacklist in eventBlacklist:
-                       if event.contents.has_key(blacklist): del event.contents[blacklist]
+               dtstart = getattr(event, 'dtstart', None)
+               dtend = getattr(event, 'dtend', None)
+
+               for i in (dtstart, dtend):
+                       if not i: continue
+                       dt = i.value
+                       if isinstance(dt, datetime):
+                               if dt.tzinfo is None: dt = dt.replace(tzinfo = default)
+                               i.value = dt.astimezone(vobject.icalendar.utc)
 
-       for blacklist in vcalBlacklist:
-               if cal.contents.has_key(blacklist): del cal.contents[blacklist]
+       return cal
+
+def unwantedParams(cal):
+       '''Removing unwanted parameters'''
+
+       blklist = [
+               "LANGUAGE",
+               "X-VOBJ-ORIGINAL-TZID",
+               "TZID"
+       ]
+
+       for event in cal.vevent_list:
+               for attr in event.contents:
+                       attr = getattr(event, attr)
+                       try:
+                               for i in blklist:
+                                       while i in attr.params: del attr.params[i]
+                       except AttributeError: continue
 
        return cal