"""Decode MIME message"""
import sys, os
+import subprocess
from mimedecode_version import __version__, \
__author__, __copyright__, __license__
+if sys.version_info[0] >= 3:
+ # Replace email.message._formatparam with _formatparam from Python 2.7
+ # to avoid re-encoding non-ascii params.
+ import formatparam_27
me = os.path.basename(sys.argv[0])
def usage(code=0, errormsg=''):
version(0)
sys.stdout.write("""\
- Usage: %s [-h|--help] [-V|--version] [-cCDP] [-H|--host=hostname] [-f charset] [-d header1[,h2,...]|*[,-h1,...]] [-p header1[,h2,h3,...]:param1[,p2,p3,...]] [-r header1[,h2,...]|*[,-h1,...]] [-R header1[,h2,h3,...]:param1[,p2,p3,...]] [--set-header header:value] [--set-param header:param=value] [-Bbeit mask] [--save-headers|body|message mask] [-O dest_dir] [-o output_file] [input_file [output_file]]
+Usage: %s [-h|--help] [-V|--version] [-cCDP] [-H|--host=hostname] [-f charset] [-d header1[,h2,...]|*[,-h1,...]] [-p header1[,h2,h3,...]:param1[,p2,p3,...]] [-r header1[,h2,...]|*[,-h1,...]] [-R header1[,h2,h3,...]:param1[,p2,p3,...]] [--set-header header:value] [--set-param header:param=value] [-Bbeit mask] [--save-headers|body|message mask] [-O dest_dir] [-o output_file] [input_file [output_file]]
""" % me)
if errormsg:
sys.stderr.write(errormsg + os.linesep)
def output_headers(msg):
unix_from = msg.get_unixfrom()
if unix_from:
- output(unix_from + os.linesep)
+ output(unix_from)
+ output(os.linesep)
for key, value in msg.items():
- output("%s: %s%s" % (key, value, os.linesep))
+ output(key)
+ output(": ")
+ value = value.split(';', 1)
+ output(value[0])
+ if len(value) == 2:
+ output(";")
+ output(_decode_header(value[1], strip=False))
+ output(os.linesep)
output(os.linesep) # End of headers
def recode_if_needed(s, charset):
- if charset and charset.lower() <> g.default_encoding:
- s = unicode(s, charset, "replace").encode(g.default_encoding, "replace")
+ if bytes is str: # Python2
+ if isinstance(s, bytes) and \
+ charset and charset.lower() != g.default_encoding:
+ s = s.decode(charset, "replace").\
+ encode(g.default_encoding, "replace")
+ else: # Python3
+ if isinstance(s, bytes):
+ s = s.decode(charset, "replace")
return s
-def _decode_header(s):
+def _decode_header(s, strip=True):
"""Return a decoded string according to RFC 2047.
NOTE: This is almost the same as email.Utils.decode.
"""
- import email.Header
+ import email.header
- L = email.Header.decode_header(s)
+ L = email.header.decode_header(s)
if not isinstance(L, list):
# s wasn't decoded
return s
rtn = []
for atom, charset in L:
- if charset is None:
- rtn.append(atom)
- else:
- rtn.append(recode_if_needed(atom, charset))
- rtn.append(' ')
- del rtn[-1] # remove the last space
+ atom = recode_if_needed(atom, charset or g.default_encoding)
+ if strip:
+ atom = atom.strip()
+ rtn.append(atom)
# Now that we've decoded everything, we just need to join all the parts
# together into the final string.
- return ''.join(rtn)
+ return ' '.join(rtn)
def decode_header(msg, header):
"Decode mail header (if exists) and put it back, if it was encoded"
- if msg.has_key(header):
+ if header in msg:
value = msg[header]
new_value = _decode_header(value)
- if new_value <> value: # do not bother to touch msg if not changed
+ if new_value != value: # do not bother to touch msg if not changed
set_header(msg, header, new_value)
def decode_header_param(msg, header, param):
"Decode mail header's parameter (if exists) and put it back, if it was encoded"
- if msg.has_key(header):
+ if header in msg:
value = msg.get_param(param, header=header)
if value:
if isinstance(value, tuple):
new_value = recode_if_needed(value[2], value[0])
else:
new_value = _decode_header(value)
- if new_value <> value: # do not bother to touch msg if not changed
+ if new_value != value: # do not bother to touch msg if not changed
msg.set_param(param, new_value, header)
def set_header(msg, header, value):
"Replace header"
- if msg.has_key(header):
+ if header in msg:
msg.replace_header(header, value)
else:
msg[header] = value
caps = mailcap.getcaps()
content_type = msg.get_content_type()
+ if content_type.startswith('text/'):
+ charset = msg.get_content_charset()
+ else:
+ charset = None
filename = tempfile.mktemp()
command = None
entries = mailcap.lookup(caps, content_type, "view")
for entry in entries:
- if entry.has_key('copiousoutput'):
- if entry.has_key('test'):
+ if 'copiousoutput' in entry:
+ if 'test' in entry:
test = mailcap.subst(entry['test'], content_type, filename)
if test and os.system(test) != 0:
continue
return s
outfile = open(filename, 'wb')
+ if charset and bytes is not str and isinstance(s, bytes): # Python3
+ s = s.decode(charset, "replace")
+ if not isinstance(s, bytes):
+ s = s.encode(g.default_encoding, "replace")
outfile.write(s)
outfile.close()
- pipe = os.popen(command, 'r')
- s = pipe.read()
- pipe.close()
+ pipe = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
+ new_s = pipe.stdout.read()
+ pipe.stdout.close()
+ if pipe.wait() == 0: # result=0, Ok
+ s = new_s
+ if bytes is not str and isinstance(s, bytes): # Python3
+ s = s.decode(g.default_encoding, "replace")
+ if charset and not isinstance(s, bytes):
+ s = s.encode(charset, "replace")
+ set_content_type(msg, "text/plain")
+ msg["X-MIME-Autoconverted"] = "from %s to text/plain by %s id %s" % (content_type, g.host_name, command.split()[0])
+ else:
+ msg["X-MIME-Autoconverted"] = "failed conversion from %s to text/plain by %s id %s" % (content_type, g.host_name, command.split()[0])
os.remove(filename)
- set_content_type(msg, "text/plain")
- msg["X-MIME-Autoconverted"] = "from %s to text/plain by %s id %s" % (content_type, g.host_name, command.split()[0])
-
return s
"Recode charset of the message to the default charset"
save_charset = charset = msg.get_content_charset()
- if charset and charset.lower() <> g.default_encoding:
+ if charset and charset.lower() != g.default_encoding:
s = recode_if_needed(s, charset)
content_type = msg.get_content_type()
set_content_type(msg, content_type, g.default_encoding)
global output
save_output = output
outfile = open_output_file(fname)
- output = outfile.write
+ def _output_bytes(s):
+ if not isinstance(s, bytes):
+ s = s.encode(g.default_encoding, "replace")
+ outfile.write(s)
+ output = _output_bytes
if save_headers:
output_headers(msg)
if save_body:
elif content_type in g.binary_mask:
left_binary = True
break
+ elif content_type in g.fully_ignore_mask:
+ return
encoding = msg["Content-Transfer-Encoding"]
if left_binary or encoding in (None, '', '7bit', '8bit', 'binary'):
outstring = totext(msg, outstring)
break
elif content_type in g.binary_mask or \
- content_type in g.decoded_binary_mask:
+ content_type in g.decoded_binary_mask:
output_headers(msg)
output(outstring)
break
for content_type in masks:
if content_type in g.error_mask:
- raise ValueError, "content type %s prohibited" % ctype
+ raise ValueError("content type %s prohibited" % ctype)
def decode_multipart(msg):
"Decode multipart"
masks.append('*/*')
for content_type in masks:
- if content_type in g.ignore_mask:
+ if content_type in g.fully_ignore_mask:
+ return
+ elif content_type in g.ignore_mask:
output_headers(msg)
output("%sMessage body of type %s skipped.%s" % (os.linesep, ctype, os.linesep))
if boundary:
output("%s--%s--%s" % (os.linesep, boundary, os.linesep))
return
- elif content_type in g.error_mask:
- raise ValueError, "content type %s prohibited" % ctype
+
+ for content_type in masks:
+ if content_type in g.save_body_mask or \
+ content_type in g.save_message_mask:
+ _out_l = []
+ first_subpart = True
+ for subpart in msg.get_payload():
+ if first_subpart:
+ first_subpart = False
+ else:
+ _out_l.append(os.linesep)
+ _out_l.append("--%s%s" % (boundary, os.linesep))
+ _out_l.append(subpart.as_string())
+ _out_l.append("%s--%s--%s" % (os.linesep, boundary, os.linesep))
+ outstring = ''.join(_out_l)
+ break
+ else:
+ outstring = None
+
+ for content_type in masks:
+ if content_type in g.save_headers_mask:
+ _save_message(msg, outstring, save_headers=True, save_body=False)
+ if content_type in g.save_body_mask:
+ _save_message(msg, outstring, save_headers=False, save_body=True)
+ if content_type in g.save_message_mask:
+ _save_message(msg, outstring, save_headers=True, save_body=True)
+
+ for content_type in masks:
+ if content_type in g.error_mask:
+ raise ValueError("content type %s prohibited" % ctype)
output_headers(msg)
totext_mask = [] # A list of content-types to decode
binary_mask = [] # A list of content-types to pass through
decoded_binary_mask = [] # A list of content-types to pass through (content-transfer-decoded)
- ignore_mask = [] # Ignore (skip, do not decode and do not include into output)
+ ignore_mask = [] # Ignore (do not decode and do not include into output) but output a warning instead of the body
+ fully_ignore_mask = [] # Completely ignore - no headers, no body, no warning
error_mask = [] # Raise error if encounter one of these
save_counter = 0
from getopt import getopt, GetoptError
try:
- options, arguments = getopt(sys.argv[1:],
- 'hVcCDPH:f:d:p:r:R:b:B:e:i:t:O:o:',
+ options, arguments = getopt(
+ sys.argv[1:],
+ 'hVcCDPH:f:d:p:r:R:b:B:e:I:i:t:O:o:',
['help', 'version', 'host=',
'save-headers=', 'save-body=', 'save-message=',
'set-header=', 'set-param='])
g.binary_mask.append(value)
elif option == '-b':
g.decoded_binary_mask.append(value)
+ elif option == '-I':
+ g.fully_ignore_mask.append(value)
elif option == '-i':
g.ignore_mask.append(value)
elif option == '-e':
g.host_name = socket.gethostname()
g.outfile = outfile
- output = outfile.write
+ if hasattr(outfile, 'buffer'):
+ def output_bytes(s):
+ if not isinstance(s, bytes):
+ s = s.encode(g.default_encoding, "replace")
+ outfile.buffer.write(s)
+ output = output_bytes
+ else:
+ output = outfile.write
import email
msg = email.message_from_file(infile)
projects / mimedecode.git / blobdiff