'''User interface module for altering labelfiles'''
# Copyright (c) 2012-2016 Tom Willemse <tom@ryuslash.org>
# Copyright (c) 2011-2018 Benjamin Althues <benjamin@babab.nl>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import sys
import dispass.algos as algos
[docs]class InteractiveEditor:
'''User interface object for altering labelfiles'''
filehandler = None
'''Filehandler object'''
def __init__(self, settings, filehandler, interactive=False):
self.settings = settings
self.filehandler = filehandler
if interactive:
print('Using {loc} as labelfile\n'
.format(loc=self.filehandler.file_location))
self.menu()
def menu(self):
print('add Add label\n'
'remove Remove label\n'
'ls List all labels\n'
'help Show this help information\n'
'quit Quit')
self.prompt()
def prompt(self):
try:
inp = input('\n> ').split()
if not inp:
print('No menu option given')
self.prompt()
command = inp[0].lower()
command_char = command[0].lower()
if command_char == 'l':
self.filehandler.printLabels()
self.prompt()
elif command_char == 'a':
self.add()
self.prompt()
elif command_char == 'r':
self.remove()
self.prompt()
elif command_char == 'q':
print('Bye')
sys.exit()
elif command_char == 'h':
self.menu()
self.prompt()
else:
print("Invalid option '{command}'".format(command=command))
self.menu()
except KeyboardInterrupt:
self.prompt()
[docs] def read_label(self):
'''Keep bugging the user for a label until they crack and give us
one.
'''
while True:
try:
return input('Label: ').split()[0]
except IndexError:
print('label cannot be empty - please try again')
continue
def add(self):
label = self.read_label()
while True:
try:
length = input(
'Length [press enter for default "{len}"]: '.format(
len=self.settings.passphrase_length
)
).split()[0]
except IndexError:
length = self.settings.passphrase_length
break
try:
length = int(length)
except ValueError:
print('length must be a number in range 9 -> 171')
continue
if length < 9 or length > 171:
print('length must be a number in range 9 -> 171')
continue
else:
break
algo = None
while True:
try:
i = 1
for algoname in algos.algorithms:
choices = ('[{num}] {algoname}'
.format(num=i, algoname=algoname))
if algoname == self.settings.algorithm:
choices += ' [default]'
print(choices)
i += 1
choice = (input('Algorithm [press enter for default]: ')
.split()[0])
except IndexError:
algo = self.settings.algorithm
break
if not algo:
try:
choice = int(choice)
except ValueError:
print('Invalid choice')
continue
if choice < 1:
print('Invalid choice')
continue
try:
algo = algos.algorithms[choice - 1]
except IndexError:
print('Invalid choice')
continue
print(algo)
break
if algo != 'dispass1':
default_seqno = self.settings.sequence_number
while True:
try:
seqno = (
input(
'Sequence number [press enter for default'
' "{seqno}"]: '.format(seqno=default_seqno))
.split()[0])
except IndexError:
seqno = self.settings.sequence_number
break
try:
seqno = int(seqno)
except ValueError:
print('Sequence number must be a number > 1')
continue
if seqno < 1:
print('Sequence number must be a number > 1')
continue
else:
break
else:
seqno = self.settings.sequence_number
if self.filehandler.add(labelname=label, length=length,
algo=algo, seqno=seqno):
self.filehandler.save()
print('Label saved')
self.filehandler.parse()
return label
else:
print('Label already exists in labelfile')
return False
def remove(self):
label = self.read_label()
if self.filehandler.remove(label):
self.filehandler.save()
print('Label removed')
else:
print("Label doesn't exist in labelfile")