212 lines
7.3 KiB
Python
212 lines
7.3 KiB
Python
# IMAP utility module
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# Copyright (C) 2002 John Goerzen
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# <jgoerzen@complete.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import re, string, types
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from offlineimap.ui import UIBase
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quotere = re.compile('^("(?:[^"]|\\\\")*")')
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def debug(*args):
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msg = []
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for arg in args:
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msg.append(str(arg))
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UIBase.getglobalui().debug('imap', " ".join(msg))
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def dequote(string):
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"""Takes a string which may or may not be quoted and returns it, unquoted.
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This function does NOT consider parenthised lists to be quoted.
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"""
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debug("dequote() called with input:", string)
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if not (string[0] == '"' and string[-1] == '"'):
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return string
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string = string[1:-1] # Strip off quotes.
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string = string.replace('\\"', '"')
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string = string.replace('\\\\', '\\')
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debug("dequote() returning:", string)
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return string
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def flagsplit(string):
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if string[0] != '(' or string[-1] != ')':
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raise ValueError, "Passed string '%s' is not a flag list" % string
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return imapsplit(string[1:-1])
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def options2hash(list):
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debug("options2hash called with input:", list)
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retval = {}
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counter = 0
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while (counter < len(list)):
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retval[list[counter]] = list[counter + 1]
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counter += 2
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debug("options2hash returning:", retval)
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return retval
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def flags2hash(string):
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return options2hash(flagsplit(string))
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def imapsplit(imapstring):
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"""Takes a string from an IMAP conversation and returns a list containing
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its components. One example string is:
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(\\HasNoChildren) "." "INBOX.Sent"
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The result from parsing this will be:
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['(\\HasNoChildren)', '"."', '"INBOX.Sent"']"""
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debug("imapsplit() called with input:", imapstring)
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if type(imapstring) != types.StringType:
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debug("imapsplit() got a non-string input; working around.")
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# Sometimes, imaplib will throw us a tuple if the input
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# contains a literal. See Python bug
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# #619732 at https://sourceforge.net/tracker/index.php?func=detail&aid=619732&group_id=5470&atid=105470
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# One example is:
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# result[0] = '() "\\\\" Admin'
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# result[1] = ('() "\\\\" {19}', 'Folder\\2')
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#
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# This function will effectively get result[0] or result[1], so
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# if we get the result[1] version, we need to parse apart the tuple
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# and figure out what to do with it. Each even-numbered
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# part of it should end with the {} number, and each odd-numbered
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# part should be directly a part of the result. We'll
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# artificially quote it to help out.
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retval = []
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for i in range(len(imapstring)):
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if i % 2: # Odd: quote then append.
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arg = imapstring[i]
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# Quote code lifted from imaplib
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arg = arg.replace('\\', '\\\\')
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arg = arg.replace('"', '\\"')
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arg = '"%s"' % arg
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debug("imapsplit() non-string [%d]: Appending %s" %\
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(i, arg))
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retval.append(arg)
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else:
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# Even -- we have a string that ends with a literal
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# size specifier. We need to strip off that, then run
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# what remains through the regular imapsplit parser.
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# Recursion to the rescue.
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arg = imapstring[i]
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arg = re.sub('\{\d+\}$', '', arg)
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debug("imapsplit() non-string [%d]: Feeding %s to recursion" %\
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(i, arg))
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retval.extend(imapsplit(arg))
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debug("imapsplit() non-string: returning %s" % str(retval))
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return retval
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workstr = imapstring.strip()
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retval = []
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while len(workstr):
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if workstr[0] == '(':
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rparenc = 1 # count of right parenthesis to match
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rpareni = 1 # position to examine
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while rparenc: # Find the end of the group.
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if workstr[rpareni] == ')': # end of a group
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rparenc -= 1
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elif workstr[rpareni] == '(': # start of a group
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rparenc += 1
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rpareni += 1 # Move to next character.
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parenlist = workstr[0:rpareni]
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workstr = workstr[rpareni:].lstrip()
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retval.append(parenlist)
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elif workstr[0] == '"':
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quotelist = quotere.search(workstr).group(1)
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workstr = workstr[len(quotelist):].lstrip()
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retval.append(quotelist)
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else:
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splits = string.split(workstr, maxsplit = 1)
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splitslen = len(splits)
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# The unquoted word is splits[0]; the remainder is splits[1]
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if splitslen == 2:
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# There's an unquoted word, and more string follows.
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retval.append(splits[0])
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workstr = splits[1] # split will have already lstripped it
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continue
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elif splitslen == 1:
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# We got a last unquoted word, but nothing else
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retval.append(splits[0])
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# Nothing remains. workstr would be ''
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break
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elif splitslen == 0:
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# There was not even an unquoted word.
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break
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debug("imapsplit() returning:", retval)
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return retval
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def flagsimap2maildir(flagstring):
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flagmap = {'\\seen': 'S',
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'\\answered': 'R',
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'\\flagged': 'F',
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'\\deleted': 'T',
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'\\draft': 'D'}
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retval = []
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imapflaglist = [x.lower() for x in flagstring[1:-1].split()]
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for imapflag in imapflaglist:
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if flagmap.has_key(imapflag):
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retval.append(flagmap[imapflag])
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retval.sort()
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return retval
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def flagsmaildir2imap(list):
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flagmap = {'S': '\\Seen',
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'R': '\\Answered',
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'F': '\\Flagged',
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'T': '\\Deleted',
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'D': '\\Draft'}
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retval = []
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for mdflag in list:
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if flagmap.has_key(mdflag):
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retval.append(flagmap[mdflag])
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retval.sort()
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return '(' + ' '.join(retval) + ')'
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def listjoin(list):
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start = None
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end = None
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retval = []
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def getlist(start, end):
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if start == end:
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return(str(start))
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else:
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return(str(start) + ":" + str(end))
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for item in list:
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if start == None:
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# First item.
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start = item
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end = item
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elif item == end + 1:
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# An addition to the list.
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end = item
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else:
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# Here on: starting a new list.
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retval.append(getlist(start, end))
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start = item
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end = item
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if start != None:
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retval.append(getlist(start, end))
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return ",".join(retval)
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