X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=parserrules.py;h=a2175fed34e8168e62384de0275274f164be1b93;hb=ae40266069204ee411350d5fd3d31f40d89187af;hp=cf0fbd66e165e0dad6ef7ebac3ae40fc46112720;hpb=32a3500faead4a17ef28bb398d21fa040cf9ffc6;p=frenchie%2Ficalparse.git

diff --git a/parserrules.py b/parserrules.py
index cf0fbd6..a2175fe 100644
--- a/parserrules.py
+++ b/parserrules.py
@@ -1,10 +1,36 @@
 #!/usr/bin/python
-
-# Rules for tackling facebook and google calendar - I want visibility of the
-# organiser... not useful Google!
+#
+# Copyright (c) 2011 James French <frenchie@frenchie.id.au>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+# This file describes a series of rules which must handle a vobject object and
+# return it to the calling script
+
+# The doc string will be presented to the user when run as verbose, so
+# please be polite
 
 import vobject
 
+ruleConfig = {}
+ruleConfig["defaultTZ"] = "UTC"
+
 def facebookOrganiser(cal):
 	'''Adds organiser details to the body of facebook calendars.'''
 
@@ -13,11 +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):
@@ -25,47 +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:
-		for blacklist in eventBlacklist:
-			if event.contents.has_key(blacklist): del event.contents[blacklist]
+		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
 
-	for blacklist in vcalBlacklist:
-		if cal.contents.has_key(blacklist): del cal.contents[blacklist]
+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:
+		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)
+
+	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