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# Source Generated with Decompyle++ # File: in.pyc (Python 2.4) '''Miscellaneous utilities.''' import os import re import time import base64 import random import socket import warnings from cStringIO import StringIO from email._parseaddr import quote from email._parseaddr import AddressList as _AddressList from email._parseaddr import mktime_tz from email._parseaddr import parsedate as _parsedate from email._parseaddr import parsedate_tz as _parsedate_tz from quopri import decodestring as _qdecode from email.Encoders import _bencode, _qencode COMMASPACE = ', ' EMPTYSTRING = '' UEMPTYSTRING = u'' CRLF = '\r\n' specialsre = re.compile('[][\\\\()<>@,:;".]') escapesre = re.compile('[][\\\\()"]') def _identity(s): return s def _bdecode(s): if not s: return s value = base64.decodestring(s) if not s.endswith('\n') and value.endswith('\n'): return value[:-1] return value def fix_eols(s): '''Replace all line-ending characters with \r .''' s = re.sub('(?<!\\r)\\n', CRLF, s) s = re.sub('\\r(?!\\n)', CRLF, s) return s def formataddr(pair): '''The inverse of parseaddr(), this takes a 2-tuple of the form (realname, email_address) and returns the string value suitable for an RFC 2822 From, To or Cc header. If the first element of pair is false, then the second element is returned unmodified. ''' (name, address) = pair if name: quotes = '' if specialsre.search(name): quotes = '"' name = escapesre.sub('\\\\\\g<0>', name) return '%s%s%s <%s>' % (quotes, name, quotes, address) return address def getaddresses(fieldvalues): '''Return a list of (REALNAME, EMAIL) for each fieldvalue.''' all = COMMASPACE.join(fieldvalues) a = _AddressList(all) return a.addresslist ecre = re.compile('\n =\\? # literal =?\n (?P<charset>[^?]*?) # non-greedy up to the next ? is the charset\n \\? # literal ?\n (?P<encoding>[qb]) # either a "q" or a "b", case insensitive\n \\? # literal ?\n (?P<atom>.*?) # non-greedy up to the next ?= is the atom\n \\?= # literal ?=\n ', re.VERBOSE | re.IGNORECASE) def formatdate(timeval = None, localtime = False, usegmt = False): '''Returns a date string as specified by RFC 2822, e.g.: Fri, 09 Nov 2001 01:08:47 -0000 Optional timeval if given is a floating point time value as accepted by gmtime() and localtime(), otherwise the current time is used. Optional localtime is a flag that when True, interprets timeval, and returns a date relative to the local timezone instead of UTC, properly taking daylight savings time into account. Optional argument usegmt means that the timezone is written out as an ascii string, not numeric one (so "GMT" instead of "+0000"). This is needed for HTTP, and is only used when localtime==False. ''' if timeval is None: timeval = time.time() if localtime: now = time.localtime(timeval) if time.daylight and now[-1]: offset = time.altzone else: offset = time.timezone (hours, minutes) = divmod(abs(offset), 3600) if offset > 0: sign = '-' else: sign = '+' zone = '%s%02d%02d' % (sign, hours, minutes // 60) else: now = time.gmtime(timeval) if usegmt: zone = 'GMT' else: zone = '-0000' return '%s, %02d %s %04d %02d:%02d:%02d %s' % ([ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'][now[6]], now[2], [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][now[1] - 1], now[0], now[3], now[4], now[5], zone) def make_msgid(idstring = None): '''Returns a string suitable for RFC 2822 compliant Message-ID, e.g: <20020201195627.33539.96671@nightshade.la.mastaler.com> Optional idstring if given is a string used to strengthen the uniqueness of the message id. ''' timeval = time.time() utcdate = time.strftime('%Y%m%d%H%M%S', time.gmtime(timeval)) pid = os.getpid() randint = random.randrange(100000) if idstring is None: idstring = '' else: idstring = '.' + idstring idhost = socket.getfqdn() msgid = '<%s.%s.%s%s@%s>' % (utcdate, pid, randint, idstring, idhost) return msgid def parsedate(data): if not data: return None return _parsedate(data) def parsedate_tz(data): if not data: return None return _parsedate_tz(data) def parseaddr(addr): addrs = _AddressList(addr).addresslist if not addrs: return ('', '') return addrs[0] def unquote(str): '''Remove quotes from a string.''' if len(str) > 1: if str.startswith('"') and str.endswith('"'): return str[1:-1].replace('\\\\', '\\').replace('\\"', '"') if str.startswith('<') and str.endswith('>'): return str[1:-1] return str def decode_rfc2231(s): '''Decode string according to RFC 2231''' import urllib parts = s.split("'", 2) if len(parts) == 1: return (None, None, urllib.unquote(s)) (charset, language, s) = parts return (charset, language, urllib.unquote(s)) def encode_rfc2231(s, charset = None, language = None): '''Encode string according to RFC 2231. If neither charset nor language is given, then s is returned as-is. If charset is given but not language, the string is encoded using the empty string for language. ''' import urllib s = urllib.quote(s, safe = '') if charset is None and language is None: return s if language is None: language = '' return "%s'%s'%s" % (charset, language, s) rfc2231_continuation = re.compile('^(?P<name>\\w+)\\*((?P<num>[0-9]+)\\*?)?$') def decode_params(params): '''Decode parameters list according to RFC 2231. params is a sequence of 2-tuples containing (content type, string value). ''' new_params = [] rfc2231_params = { } (name, value) = params[0] new_params.append((name, value)) for name, value in params[1:]: value = unquote(value) mo = rfc2231_continuation.match(name) if mo: (name, num) = mo.group('name', 'num') if num is not None: num = int(num) rfc2231_param1 = rfc2231_params.setdefault(name, []) rfc2231_param1.append((num, value)) continue new_params.append((name, '"%s"' % quote(value))) if rfc2231_params: for name, continuations in rfc2231_params.items(): value = [] continuations.sort() for num, continuation in continuations: value.append(continuation) (charset, language, value) = decode_rfc2231(EMPTYSTRING.join(value)) new_params.append((name, (charset, language, '"%s"' % quote(value)))) return new_params def collapse_rfc2231_value(value, errors = 'replace', fallback_charset = 'us-ascii'): if isinstance(value, tuple): rawval = unquote(value[2]) if not value[0]: pass charset = 'us-ascii' try: return unicode(rawval, charset, errors) except LookupError: return unicode(rawval, fallback_charset, errors) except: None<EXCEPTION MATCH>LookupError None<EXCEPTION MATCH>LookupError return unquote(value)