import urlparse
import os
+
class InvalidICS(Exception): pass
class notJoined(Exception): pass
+class IncompleteICS(InvalidICS): pass
+
def lineJoiner(oldcal):
'''Takes a string containing a calendar and returns an array of its lines'''
+ if not oldcal[0:15] == 'BEGIN:VCALENDAR':
+ raise InvalidICS, "Does not appear to be a valid ICS file"
+
+ if not 'END:VCALENDAR' in oldcal[-15:-1]:
+ raise IncompleteICS, "File appears to be incomplete"
+
if list(oldcal) == oldcal:
oldcal = '\r\n'.join(oldcal)
- oldcal.replace('\r\n ', '')
- return oldcal.split('\r\n')
+ oldcal = oldcal.replace('\r\n ', '').replace('\r\n\t','')
+ return oldcal.strip().split('\r\n')
def lineFolder(oldcal, length=75):
return cal
+
+def splitFields(cal):
+ '''Takes a list of lines in a calendar file and returns a list of key, value pairs'''
+
+ ical = [tuple(x.split(':',1)) for x in cal]
+
+ # Check that we got 2 items on every line
+ for line in ical:
+ if not len(line) == 2:
+ raise InvalidICS, "Didn't find a content key on: %s"%(line)
+
+ return ical
+
+
def getContent(url='',stdin=False):
'''Generic content retriever, DO NOT use this function in a CGI script as
it can read from the local disk (which you probably don't want it to).
res = urllib2.urlopen(url)
content = res.read()
res.close()
- except (urllib2.URLError, ValueError), e:
+ except (urllib2.URLError, OSError), e:
sys.stderr.write('%s\n'%e)
sys.exit(1)
return content
try:
content = urllib2.urlopen(url).read()
return content
- except urllib2.URLError, e:
+ except (urllib2.URLError, OSError), e:
sys.stderr.write('%s\n'%e)
sys.exit(1)
url = ''
content = getContent(url, options.stdin)
+ cal = lineJoiner(content)
+ ical = splitFields(cal)
+ print ical