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v0.8.1
v0.8.1
https://github.com/python/cpython
Revision b6987b13fecdfbbc3a45e84025754d06ad18fca9 authored by Guido van Rossum on 07 April 1999, 18:32:51 UTC, committed by Guido van Rossum on 07 April 1999, 18:32:51 UTC
before exiting when an error happened. This didn't work right when Python is invoked from a daemon.
1 parent a99c5db
Tip revision: b6987b13fecdfbbc3a45e84025754d06ad18fca9 authored by Guido van Rossum on 07 April 1999, 18:32:51 UTC
Alas, get rid of the Win specific hack to ask the user to press Return
Alas, get rid of the Win specific hack to ask the user to press Return
Tip revision: b6987b1
mimetools.py
# Various tools used by MIME-reading or MIME-writing programs.
import os
import rfc822
import string
import tempfile
# A derived class of rfc822.Message that knows about MIME headers and
# contains some hooks for decoding encoded and multipart messages.
class Message(rfc822.Message):
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:
# XXX Should parse quotes!
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:
if p[:n] == name:
return rfc822.unquote(p[n:])
return None
def getparamnames(self):
result = []
for p in self.plist:
i = string.find(p, '=')
if i >= 0:
result.append(string.lower(p[:i]))
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
# Utility functions
# -----------------
# Return a random string usable as a multipart boundary.
# The method used is so that it is *very* unlikely that the same
# string of characters will every occur again in the Universe,
# so the caller needn't check the data it is packing for the
# occurrence of the boundary.
#
# The boundary contains dots so you have to quote it in the header.
_prefix = None
def choose_boundary():
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
# Subroutines for decoding some common content-transfer-types
def decode(input, output, encoding):
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 decodetab.has_key(encoding):
pipethrough(input, decodetab[encoding], output)
else:
raise ValueError, \
'unknown Content-Transfer-Encoding: %s' % encoding
def encode(input, output, encoding):
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 encodetab.has_key(encoding):
pipethrough(input, encodetab[encoding], output)
else:
raise ValueError, \
'unknown Content-Transfer-Encoding: %s' % encoding
# The following is no longer used for standard encodings
# XXX This requires that uudecode and mmencode are in $PATH
uudecode_pipe = '''(
TEMP=/tmp/@uu.$$
sed "s%^begin [0-7][0-7]* .*%begin 600 $TEMP%" | uudecode
cat $TEMP
rm $TEMP
)'''
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
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)
Computing file changes ...