def usage(code=0, errormsg=''):
version(0)
sys.stdout.write("""\
-Usage: %s [-h|--help] [-V|--version] [-cCDP] [-H|--host=hostname] [-f charset] [-d header1[,header2,header3...]] [-p header:param] [-r header] [-R header:param] [--remove-params=header] [-beit mask] [-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 header:param] [--remove-params=header] [-beit mask] [-o output_file] [input_file [output_file]]
""" % me)
if errormsg:
sys.stderr.write(errormsg + '\n')
msg.set_param(param, new_value, header)
+def _get_exceptions(list):
+ return [x[1:].lower() for x in list[1:] if x[0]=='-']
+
+def _decode_headers_params(msg, header, decode_all_params, param_list):
+ if decode_all_params:
+ params = msg.get_params(header=header)
+ if params:
+ for param, value in params:
+ if param not in param_list:
+ decode_header_param(msg, header, param)
+ else:
+ for param in param_list:
+ decode_header_param(msg, header, param)
+
def decode_headers(msg):
"Decode message headers according to global options"
- for header in gopts.remove_headers:
- del msg[header]
+ for header_list in gopts.remove_headers:
+ header_list = header_list.split(',')
+ if header_list[0] == '*': # Remove all headers except listed
+ header_list = _get_exceptions(header_list)
+ for header in msg.keys():
+ if header.lower() not in header_list:
+ del msg[header]
+ else: # Remove listed headers
+ for header in header_list:
+ del msg[header]
for header in gopts.remove_all_params:
value = msg[header]
msg.del_param(param, header)
for header_list in gopts.decode_headers:
- for header in header_list.split(','):
- decode_header(msg, header)
-
- for header, param in gopts.decode_header_params:
- decode_header_param(msg, header, param)
+ header_list = header_list.split(',')
+ if header_list[0] == '*': # Decode all headers except listed
+ header_list = _get_exceptions(header_list)
+ for header in msg.keys():
+ if header.lower() not in header_list:
+ decode_header(msg, header)
+ else: # Decode listed headers
+ for header in header_list:
+ decode_header(msg, header)
+
+ for header_list, param_list in gopts.decode_header_params:
+ header_list = header_list.split(',')
+ param_list = param_list.split(',')
+ decode_all_params = param_list[0] == '*' # Decode all params except listed
+ if decode_all_params:
+ param_list = _get_exceptions(param_list)
+ if header_list[0] == '*': # Decode for all headers except listed
+ header_list = _get_exceptions(header_list)
+ for header in msg.keys():
+ if header.lower() not in header_list:
+ _decode_headers_params(msg, header, decode_all_params, param_list)
+ else: # Decode for listed headers
+ for header in header_list:
+ _decode_headers_params(msg, header, decode_all_params, param_list)
def set_header(msg, header, value):
elif option == '-f':
gopts.default_encoding = value
elif option == '-d':
+ if value.startswith('*'):
+ gopts.decode_headers = []
gopts.decode_headers.append(value)
elif option == '-D':
gopts.decode_headers = []