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mimetools.pyc
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.txt
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Python Compiled Bytecode
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2000-11-17
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238 lines
# Source Generated with Decompyle++
# File: in.pyc (Python 2.0)
'''Various tools used by MIME-reading or MIME-writing programs.'''
import os
import rfc822
import string
import tempfile
class Message(rfc822.Message):
'''A derived class of rfc822.Message that knows about MIME headers and
\tcontains some hooks for decoding encoded and multipart messages.'''
def __init__(self, fp, seekable = 1):
rfc822.Message.__init__(self, fp, seekable)
self.encodingheader = self.getheader('content-transfer-encoding')
self.typeheader = self.getheader('content-type')
self.parsetype()
self.parseplist()
def parsetype(self):
str = self.typeheader
if str == None:
str = 'text/plain'
if ';' in str:
i = string.index(str, ';')
self.plisttext = str[i:]
str = str[:i]
else:
self.plisttext = ''
fields = string.splitfields(str, '/')
for i in range(len(fields)):
fields[i] = string.lower(string.strip(fields[i]))
self.type = string.joinfields(fields, '/')
self.maintype = fields[0]
self.subtype = string.joinfields(fields[1:], '/')
def parseplist(self):
str = self.plisttext
self.plist = []
while str[:1] == ';':
str = str[1:]
if ';' in str:
end = string.index(str, ';')
else:
end = len(str)
f = str[:end]
if '=' in f:
i = string.index(f, '=')
f = string.lower(string.strip(f[:i])) + '=' + string.strip(f[i + 1:])
self.plist.append(string.strip(f))
str = str[end:]
def getplist(self):
return self.plist
def getparam(self, name):
name = string.lower(name) + '='
n = len(name)
for p in self.plist:
pass
return None
def getparamnames(self):
result = []
for p in self.plist:
i = string.find(p, '=')
return result
def getencoding(self):
if self.encodingheader == None:
return '7bit'
return string.lower(self.encodingheader)
def gettype(self):
return self.type
def getmaintype(self):
return self.maintype
def getsubtype(self):
return self.subtype
_prefix = None
def choose_boundary():
"""Return a random string usable as a multipart boundary.
\tThe method used is so that it is *very* unlikely that the same
\tstring of characters will every occur again in the Universe,
\tso the caller needn't check the data it is packing for the
\toccurrence of the boundary.
\tThe boundary contains dots so you have to quote it in the header."""
global _prefix
import time
import random
if _prefix == None:
import socket
import os
hostid = socket.gethostbyname(socket.gethostname())
try:
uid = `os.getuid()`
except:
uid = '1'
try:
pid = `os.getpid()`
except:
pid = '1'
_prefix = hostid + '.' + uid + '.' + pid
timestamp = '%.3f' % time.time()
seed = `random.randint(0, 32767)`
return _prefix + '.' + timestamp + '.' + seed
def decode(input, output, encoding):
'''Decode common content-transfer-encodings (base64, quopri, uuencode).'''
if encoding == 'base64':
import base64
return base64.decode(input, output)
if encoding == 'quoted-printable':
import quopri
return quopri.decode(input, output)
if encoding in ('uuencode', 'x-uuencode', 'uue', 'x-uue'):
import uu
return uu.decode(input, output)
if encoding in ('7bit', '8bit'):
return output.write(input.read())
if decodetab.has_key(encoding):
pipethrough(input, decodetab[encoding], output)
else:
raise ValueError, 'unknown Content-Transfer-Encoding: %s' % encoding
def encode(input, output, encoding):
'''Encode common content-transfer-encodings (base64, quopri, uuencode).'''
if encoding == 'base64':
import base64
return base64.encode(input, output)
if encoding == 'quoted-printable':
import quopri
return quopri.encode(input, output, 0)
if encoding in ('uuencode', 'x-uuencode', 'uue', 'x-uue'):
import uu
return uu.encode(input, output)
if encoding in ('7bit', '8bit'):
return output.write(input.read())
if encodetab.has_key(encoding):
pipethrough(input, encodetab[encoding], output)
else:
raise ValueError, 'unknown Content-Transfer-Encoding: %s' % encoding
uudecode_pipe = '(\nTEMP=/tmp/@uu.$$\nsed "s%^begin [0-7][0-7]* .*%begin 600 $TEMP%" | uudecode\ncat $TEMP\nrm $TEMP\n)'
decodetab = {
'uuencode': uudecode_pipe,
'x-uuencode': uudecode_pipe,
'uue': uudecode_pipe,
'x-uue': uudecode_pipe,
'quoted-printable': 'mmencode -u -q',
'base64': 'mmencode -u -b' }
encodetab = {
'x-uuencode': 'uuencode tempfile',
'uuencode': 'uuencode tempfile',
'x-uue': 'uuencode tempfile',
'uue': 'uuencode tempfile',
'quoted-printable': 'mmencode -q',
'base64': 'mmencode -b' }
def pipeto(input, command):
pipe = os.popen(command, 'w')
copyliteral(input, pipe)
pipe.close()
def pipethrough(input, command, output):
tempname = tempfile.mktemp()
try:
temp = open(tempname, 'w')
except IOError:
print '*** Cannot create temp file', `tempname`
return None
copyliteral(input, temp)
temp.close()
pipe = os.popen(command + ' <' + tempname, 'r')
copybinary(pipe, output)
pipe.close()
os.unlink(tempname)
def copyliteral(input, output):
while 1:
line = input.readline()
if not line:
break
output.write(line)
def copybinary(input, output):
BUFSIZE = 8192
while 1:
line = input.read(BUFSIZE)
if not line:
break
output.write(line)