offlineimap/head/offlineimap/imaputil.py

105 lines
3.3 KiB
Python

# IMAP utility module
# Copyright (C) 2002 John Goerzen
# <jgoerzen@complete.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import re
def dequote(string):
"""Takes a string which may or may not be quoted and returns it, unquoted.
This function does NOT consider parenthised lists to be quoted.
"""
if not (string[0] == '"' and string[-1] == '"'):
return string
string = string[1:-1] # Strip off quotes.
string = string.replace('\\"', '"')
string = string.replace('\\\\', '\\')
return string
def flagsplit(string):
if string[0] != '(' or string[-1] != ')':
raise ValueError, "Passed string '%s' is not a flag list" % string
return imapsplit(string[1:-1])
def options2hash(list):
retval = {}
counter = 0
while (counter < len(list)):
retval[list[counter]] = list[counter + 1]
counter += 2
return retval
def flags2hash(string):
return options2hash(flagsplit(string))
def imapsplit(string):
"""Takes a string from an IMAP conversation and returns a list containing
its components. One example string is:
(\\HasNoChildren) "." "INBOX.Sent"
The result from parsing this will be:
['(\\HasNoChildren)', '"."', '"INBOX.Sent"']"""
workstr = string
retval = []
while len(workstr):
if re.search('^\s', workstr):
workstr = re.search('^\s(.*)$', workstr).group(1)
elif workstr[0] == '(':
parenlist = re.search('^(\(.*\))', workstr).group(1)
workstr = workstr[len(parenlist):]
retval.append(parenlist)
elif workstr[0] == '"':
quotelist = re.search('^("(?:[^"]|\\\\")*")', workstr).group(1)
workstr = workstr[len(quotelist):]
retval.append(quotelist)
else:
unq = re.search('^(\S+)', workstr).group(1)
workstr = workstr[len(unq):]
retval.append(unq)
return retval
def flagsimap2maildir(string):
flagmap = {'\\Seen': 'S',
'\\Answered': 'R',
'\\Flagged': 'F',
'\\Deleted': 'T',
'\\Draft': 'D'}
retval = []
imapflaglist = flagsplit(string)
for imapflag in imapflaglist:
if flagmap.has_key(imapflag):
retval.append(flagmap[imapflag])
retval.sort()
return retval
def flagsmaildir2imap(list):
flagmap = {'S': '\\Seen',
'R': '\\Answered',
'F': '\\Flagged',
'T': '\\Deleted',
'D': '\\Draft'}
retval = []
for mdflag in list:
if flagmap.has_key(mdflag):
retval.append(flagmap[mdflag])
retval.sort()
return retval