Add timezone support to the CGI script

- new tz parameter, set it to a valid database entry (eg Australia/Melbourne) to assume the calendar is in that timezone if not specified.
- Facebook seem to have gotten better with this, but why trust them.

diff --git a/fbcal.py b/fbcal.py
index 6e6c9f7..d18a515 100755 (executable)
--- a/fbcal.py
+++ b/fbcal.py
@@ -25,7 +25,7 @@ import cgi
 import vobject
 import icalparse
 import re
-#import cgitb; cgitb.enable()
+import cgitb; cgitb.enable()
 
 def exitQuiet(exitstate=0):
        print('Content-Type: text/html\n')
@@ -46,13 +46,28 @@ if __name__ == '__main__':
        key = form['key'].value
        re.search('[&?]+', key) and exitQuiet()
        len(key) == 16 or exitQuiet()
-
+       
+       # Historically facebook has been notoriously bad at setting timzeones
+       # in their stuff so this should be a user setting. If it is set in
+       # their calendar it'll  be used otherwise if the user feeds crap or
+       # nothing just assume they want Australia/Perth
+       tz = ""
+       if "tz" in form:
+               from pytz import timezone
+               try:
+                       timezone(form['tz'].value)
+                       tz = form['tz'].value
+               except: pass
+       
+       ruleConfig = {}
+       ruleConfig["defaultTZ"] = tz or "Australia/Perth"
+                               
        # Okay, we're happy that the input is sane, lets serve up some data
        url = 'http://www.facebook.com/ical/u.php?uid=%d&key=%s'%(uid,key)
        (content, encoding) = icalparse.getHTTPContent(url)
 
        cal = vobject.readOne(unicode(content, encoding))
-       cal = icalparse.applyRules(cal, icalparse.generateRules(), False)
+       cal = icalparse.applyRules(cal, icalparse.generateRules(ruleConfig), False)
 
-       print('Content-Type: text/calendar; charset=%s\n'%encoding)
+       print('Content-Type: text/html; charset=%s\n'%encoding)
        icalparse.writeOutput(cal)