MoinMoin: attachment:meta.py of StorageRefactoring/PagesAsBundles

   1 #!/usr/bin/env python
   2 # -*- coding: iso8859-1 -*-
   3 import email, email.Message
   4 
   5 def make_meta(mime='text/wiki', charset='utf-8', **kw):
   6     meta = email.Message.Message()
   7     meta.set_type(mime)
   8     meta.set_charset(charset)
   9     for k,v in kw.items():
  10         if isinstance(v, unicode):
  11             meta[k] = v.encode(charset)
  12         else:
  13             meta[k] = str(v)
  14     # remove stuff we don't need:
  15     del meta['Content-Transfer-Encoding']
  16     del meta['Mime-Version']
  17     return meta.as_string()
  18 
  19 def parse_meta(metastr):
  20     meta = email.message_from_string(metastr)
  21     mime = meta.get_content_type()
  22     charset = 'ascii'
  23     for k,v in meta.get_params():
  24         if k == 'charset':
  25             charset = v
  26     # we only need it once:
  27     del meta['Content-Type']
  28     d = {}
  29     for k in meta.keys():
  30         d[k] = unicode(meta[k], charset)
  31     return mime, charset, d
  32 
  33 meta = make_meta('text/wiki', 'utf-8',
  34                  current = 3, 
  35                  acl = 'WikiAdmin:read,write,revert,delete,admin All:',
  36                  lasteditor = u'JürgenHermann',
  37                  lastchange = 12345678)
  38 
  39 print meta
  40 
  41 print parse_meta(meta)