From 08ba47d0e811c700411e763559a4e535cc459cf0 Mon Sep 17 00:00:00 2001
From: James French <frenchie@ucc.gu.uwa.edu.au>
Date: Mon, 13 Jun 2011 22:31:22 +0800
Subject: [PATCH] Beginning of a series of changes to use vobject

It makes more sense to use a maintained library. What was an exercise in
unicode and ical RFCs is easier done by other people
---
 icalparse.py    | 19 +++++++++++++++++++
 vobjectRules.py | 26 ++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 vobjectRules.py

diff --git a/icalparse.py b/icalparse.py
index d52ac7e..3cdc7f1 100755
--- a/icalparse.py
+++ b/icalparse.py
@@ -267,6 +267,21 @@ def writeOutput(cal, outfile=''):
 		out.close()
 
 
+def vobjectRules(ics):
+	'''Applies rules to the ICS file before we have our way with it'''
+
+	try:
+		import vobjectRules
+	except ImportError:
+		sys.stderr.write('Vobject rules file could not be imported\n')
+		return ics
+
+	for rule in vobjectRules.runRules:
+		ics = rule(ics)
+
+	return ics
+
+
 if __name__ == '__main__':
 	from optparse import OptionParser
 	# If the user passed us a 'stdin' argument, we'll go with that,
@@ -282,6 +297,9 @@ if __name__ == '__main__':
 	parser.add_option('-m','--encoding', dest='encoding', default='',
 		help='Specify a different character encoding'
 		'(ignored if the remote server also specifies one)')
+	parser.add_option('-r','--vobject-rules',
+		action='store_true', dest='vobject',
+		help='Run rules written for vobject stored in vobjectRules.py')
 
 	(options, args) = parser.parse_args()
 
@@ -295,6 +313,7 @@ if __name__ == '__main__':
 
 	(content, encoding) = getContent(url, options.stdin)
 	encoding = encoding or options.encoding or 'utf-8'
+	if options.vobject: content = vobjectRules(content)
 	cal = lineJoiner(content, encoding)
 	ical = applyRules(splitFields(cal), generateRules(), options.verbose)
 	output = lineFolder(joinFields(ical))
diff --git a/vobjectRules.py b/vobjectRules.py
new file mode 100644
index 0000000..33fb527
--- /dev/null
+++ b/vobjectRules.py
@@ -0,0 +1,26 @@
+#!/usr/bin/python
+
+# Rules for tackling facebook and google calendar - I want visibility of the
+# organiser... not useful Google!
+
+import vobject
+import sys
+
+def facebookOrganiser(ics):
+	'''Adds organiser details to the body of facebook calendars.'''
+
+	cal = vobject.readOne(ics)
+
+	if cal.contents.has_key('PRODID'):
+		if not "Facebook" in cal.contents.prodid.value: return ics
+
+	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
+
+	return cal.serialize()
+
+runRules = [facebookOrganiser]
-- 
2.20.1