def list_contacts( pubkey_str, privkey_str, start_idx=None, length=None ):
global STORAGE_DIR, CACHED_CONTACT_LIST
cached_contacts = storage.get_cached_data( privkey_str, CACHED_CONTACT_LIST )
if cached_contacts == None:
log.info("No cached contacts")
else:
return cached_contacts
contact_dir = storage.volume_path( STORAGE_DIR )
dir_ents = storage.listdir( contact_dir )
dir_ents.sort()
if start_idx == None:
start_idx = 0
if length == None:
length = len(dir_ents)
if start_idx + length > len(dir_ents):
length = len(dir_ents) - start_idx
dir_ents = dir_ents[start_idx:start_idx + length]
contact_emails = []
for contact_filename in dir_ents:
contact_path = storage.path_join( contact_dir, contact_filename )
contact = read_contact_from_path( privkey_str, contact_path )
if contact == None:
log.warning("Failed to read contact file %s" % contact_path)
continue
contact_emails.append( contact.addr )
storage.cache_data( pubkey_str, CACHED_CONTACT_LIST, contact_emails )
return contact_emails
log.warning("Failed to read message")
continue
metadata = SyndicateMessageMetadata( id=msg_data.id,
sender_addr=msg_data.sender_addr,
receiver_addrs=msg_data.receiver_addrs,
cc_addrs=msg_data.cc_addrs,
subject=msg_data.subject,
timestamp=msg_data.timestamp,
handle=message_handle( msg_data.timestamp, msg_data.id ),
has_attachments=(len(msg_data.attachment_names) > 0),
is_read=is_read )
ret.append( metadata )
storage.cache_data( pubkey_str, folder_cache_name( folder_name ), ret )
return ret
def stddev( data ):
x_avg = 0.0
for x in data:
x_avg += x
x_avg /= len(data)
val = 0.0
for x in data:
val += (x - x_avg) * (x - x_avg)
