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/opt/alt/python27/lib64/python2.7/email/

/opt/alt/python27/lib64/python2.7/email

Name	Size	Mode	Actions
mime/	-	0755	rm
base64mime.py	5794	0644	edit dl rm
base64mime.pyc	5388	0644	edit dl rm
base64mime.pyo	5388	0644	edit dl rm
charset.py	16044	0644	edit dl rm
charset.pyc	13762	0644	edit dl rm
charset.pyo	13715	0644	edit dl rm
encoders.py	2015	0644	edit dl rm
encoders.pyc	2323	0644	edit dl rm
encoders.pyo	2323	0644	edit dl rm
errors.py	1628	0644	edit dl rm
errors.pyc	3724	0644	edit dl rm
errors.pyo	3724	0644	edit dl rm
feedparser.py	20492	0644	edit dl rm
feedparser.pyc	11442	0644	edit dl rm
feedparser.pyo	11351	0644	edit dl rm
generator.py	14203	0644	edit dl rm
generator.pyc	10627	0644	edit dl rm
generator.pyo	10627	0644	edit dl rm
header.py	22243	0644	edit dl rm
header.pyc	13870	0644	edit dl rm
header.pyo	13800	0644	edit dl rm
iterators.py	2202	0644	edit dl rm
iterators.pyc	2431	0644	edit dl rm
iterators.pyo	2431	0644	edit dl rm
message.py	30723	0644	edit dl rm
message.pyc	29274	0644	edit dl rm
message.pyo	29274	0644	edit dl rm
parser.py	3299	0644	edit dl rm
parser.pyc	3932	0644	edit dl rm
parser.pyo	3932	0644	edit dl rm
quoprimime.py	10848	0644	edit dl rm
quoprimime.pyc	9019	0644	edit dl rm
quoprimime.pyo	9019	0644	edit dl rm
utils.py	10026	0644	edit dl rm
utils.pyc	9532	0644	edit dl rm
utils.pyo	9532	0644	edit dl rm
_parseaddr.py	16138	0644	edit dl rm
_parseaddr.pyc	14244	0644	edit dl rm
_parseaddr.pyo	14244	0644	edit dl rm
__init__.py	2856	0644	edit dl rm
__init__.pyc	2950	0644	edit dl rm
__init__.pyo	2950	0644	edit dl rm

Edit: /opt/alt/python27/lib64/python2.7/email/utils.py (10026B)

# Copyright (C) 2001-2010 Python Software Foundation
# Author: Barry Warsaw
# Contact: email-sig@python.org

"""Miscellaneous utilities."""

__all__ = [
    'collapse_rfc2231_value',
    'decode_params',
    'decode_rfc2231',
    'encode_rfc2231',
    'formataddr',
    'formatdate',
    'getaddresses',
    'make_msgid',
    'mktime_tz',
    'parseaddr',
    'parsedate',
    'parsedate_tz',
    'unquote',
    ]

import os
import re
import time
import base64
import random
import socket
import urllib
import warnings

from email._parseaddr import quote
from email._parseaddr import AddressList as _AddressList
from email._parseaddr import mktime_tz

# We need wormarounds for bugs in these methods in older Pythons (see below)
from email._parseaddr import parsedate as _parsedate
from email._parseaddr import parsedate_tz as _parsedate_tz

from quopri import decodestring as _qdecode

# Intrapackage imports
from email.encoders import _bencode, _qencode

COMMASPACE = ', '
EMPTYSTRING = ''
UEMPTYSTRING = u''
CRLF = '\r\n'
TICK = "'"

specialsre = re.compile(r'[][\\()<>@,:;".]')
escapesre = re.compile(r'[][\\()"]')

# Helpers

def _identity(s):
    return s

def _bdecode(s):
    """Decodes a base64 string.

This function is equivalent to base64.decodestring and it's retained only
    for backward compatibility. It used to remove the last \\n of the decoded
    string, if it had any (see issue 7143).
    """
    if not s:
        return s
    return base64.decodestring(s)

def fix_eols(s):
    """Replace all line-ending characters with \\r\\n."""
    # Fix newlines with no preceding carriage return
    s = re.sub(r'(?<!\r)\n', CRLF, s)
    # Fix carriage returns with no following newline
    s = re.sub(r'\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(r'\\\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(r'''
  =\?                   # literal =?
  (?P<charset>[^?]*?)   # non-greedy up to the next ? is the charset
  \?                    # literal ?
  (?P<encoding>[qb])    # either a "q" or a "b", case insensitive
  \?                    # literal ?
  (?P<atom>.*?)         # non-greedy up to the next ?= is the atom
  \?=                   # literal ?=
  ''', 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.
    """
    # Note: we cannot use strftime() because that honors the locale and RFC
    # 2822 requires that day and month names be the English abbreviations.
    if timeval is None:
        timeval = time.time()
    if localtime:
        now = time.localtime(timeval)
        # Calculate timezone offset, based on whether the local zone has
        # daylight savings time, and whether DST is in effect.
        if time.daylight and now[-1]:
            offset = time.altzone
        else:
            offset = time.timezone
        hours, minutes = divmod(abs(offset), 3600)
        # Remember offset is in seconds west of UTC, but the timezone is in
        # minutes east of UTC, so the signs differ.
        if offset > 0:
            sign = '-'
        else:
            sign = '+'
        zone = '%s%02d%02d' % (sign, hours, minutes // 60)
    else:
        now = time.gmtime(timeval)
        # Timezone offset is always -0000
        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:

<142480216486.20800.16526388040877946887@nightshade.la.mastaler.com>

Optional idstring if given is a string used to strengthen the
    uniqueness of the message id.
    """
    timeval = int(time.time()*100)
    pid = os.getpid()
    randint = random.getrandbits(64)
    if idstring is None:
        idstring = ''
    else:
        idstring = '.' + idstring
    idhost = socket.getfqdn()
    msgid = '<%d.%d.%d%s@%s>' % (timeval, pid, randint, idstring, idhost)
    return msgid

# These functions are in the standalone mimelib version only because they've
# subsequently been fixed in the latest Python versions.  We use this to worm
# around broken older Pythons.
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):
    """
    Parse addr into its constituent realname and email address parts.

Return a tuple of realname and email address, unless the parse fails, in
    which case return a 2-tuple of ('', '').
    """
    addrs = _AddressList(addr).addresslist
    if not addrs:
        return '', ''
    return addrs[0]

# rfc822.unquote() doesn't properly de-backslash-ify in Python pre-2.3.
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

# RFC2231-related functions - parameter encoding and decoding
def decode_rfc2231(s):
    """Decode string according to RFC 2231"""
    parts = s.split(TICK, 2)
    if len(parts) <= 2:
        return None, None, s
    return parts

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(r'^(?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 (param name, string value).
    """
    # Copy params so we don't mess with the original
    params = params[:]
    new_params = []
    # Map parameter's name to a list of continuations.  The values are a
    # 3-tuple of the continuation number, the string value, and a flag
    # specifying whether a particular segment is %-encoded.
    rfc2231_params = {}
    name, value = params.pop(0)
    new_params.append((name, value))
    while params:
        name, value = params.pop(0)
        if name.endswith('*'):
            encoded = True
        else:
            encoded = False
        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_params.setdefault(name, []).append((num, value, encoded))
        else:
            new_params.append((name, '"%s"' % quote(value)))
    if rfc2231_params:
        for name, continuations in rfc2231_params.items():
            value = []
            extended = False
            # Sort by number
            continuations.sort()
            # And now append all values in numerical order, converting
            # %-encodings for the encoded segments.  If any of the
            # continuation names ends in a *, then the entire string, after
            # decoding segments and concatenating, must have the charset and
            # language specifiers at the beginning of the string.
            for num, s, encoded in continuations:
                if encoded:
                    s = urllib.unquote(s)
                    extended = True
                value.append(s)
            value = quote(EMPTYSTRING.join(value))
            if extended:
                charset, language, value = decode_rfc2231(value)
                new_params.append((name, (charset, language, '"%s"' % value)))
            else:
                new_params.append((name, '"%s"' % value))
    return new_params

def collapse_rfc2231_value(value, errors='replace',
                           fallback_charset='us-ascii'):
    if isinstance(value, tuple):
        rawval = unquote(value[2])
        charset = value[0] or 'us-ascii'
        try:
            return unicode(rawval, charset, errors)
        except LookupError:
            # XXX charset is unknown to Python.
            return unicode(rawval, fallback_charset, errors)
    else:
        return unquote(value)

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