examples: python howto
* Uses the groups module to prepare a list of recipients and encrypt to those. * The main version (encrypt-to-group.py) tries to check for invalid recipients, but still falls back to always trust for the second encryption attempt. * The gullible version doesn't try pruning the recipient list at all, it just tries to encrypt and if it fails, switches straight to always trust. * The trustno1 version doesn't use the always trust model at all and only attempts pruning the list of invalid recipients.
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Ben McGinnes
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81
lang/python/examples/howto/encrypt-to-group-gullible.py
Executable file
81
lang/python/examples/howto/encrypt-to-group-gullible.py
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, division, unicode_literals
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# Copyright (C) 2018 Ben McGinnes <ben@gnupg.org>
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation; either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License and the GNU
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# Lesser General Public Licensefor more details.
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#
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# You should have received a copy of the GNU General Public License and the GNU
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# Lesser General Public along with this program; if not, see
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# <http://www.gnu.org/licenses/>.
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import gpg
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import sys
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from groups import group_lists
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"""
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Uses the groups module to encrypt to multiple recipients.
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"""
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c = gpg.Context(armor=True)
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if len(sys.argv) > 3:
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group_id = sys.argv[1]
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filepath = sys.argv[2:]
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elif len(sys.argv) == 3:
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group_id = sys.argv[1]
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filepath = sys.argv[2]
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elif len(sys.argv) == 2:
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group_id = sys.argv[1]
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filepath = input("Enter the filename to encrypt: ")
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else:
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group_id = input("Enter the group name to encrypt to: ")
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filepath = input("Enter the filename to encrypt: ")
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with open(filepath, "rb") as f:
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text = f.read()
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for i in range(len(group_lists)):
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if group_lists[i][0] == group_id:
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klist = group_lists[i][1]
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else:
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klist = None
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logrus = []
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if klist is not None:
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for i in range(len(klist)):
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apattern = list(c.keylist(pattern=klist[i], secret=False))
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if apattern[0].can_encrypt == 1:
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logrus.append(apattern[0])
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else:
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pass
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try:
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ciphertext, result, sign_result = c.encrypt(text, recipients=logrus,
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add_encrypt_to=True)
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except:
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ciphertext, result, sign_result = c.encrypt(text, recipients=logrus,
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add_encrypt_to=True,
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always_trust=True)
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with open("{0}.asc".format(filepath), "wb") as f:
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f.write(ciphertext)
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else:
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pass
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# EOF
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90
lang/python/examples/howto/encrypt-to-group-trustno1.py
Executable file
90
lang/python/examples/howto/encrypt-to-group-trustno1.py
Executable file
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, division, unicode_literals
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# Copyright (C) 2018 Ben McGinnes <ben@gnupg.org>
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation; either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License and the GNU
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# Lesser General Public Licensefor more details.
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#
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# You should have received a copy of the GNU General Public License and the GNU
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# Lesser General Public along with this program; if not, see
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# <http://www.gnu.org/licenses/>.
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import gpg
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import sys
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from groups import group_lists
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"""
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Uses the groups module to encrypt to multiple recipients.
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"""
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c = gpg.Context(armor=True)
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if len(sys.argv) > 3:
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group_id = sys.argv[1]
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filepath = sys.argv[2:]
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elif len(sys.argv) == 3:
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group_id = sys.argv[1]
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filepath = sys.argv[2]
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elif len(sys.argv) == 2:
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group_id = sys.argv[1]
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filepath = input("Enter the filename to encrypt: ")
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else:
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group_id = input("Enter the group name to encrypt to: ")
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filepath = input("Enter the filename to encrypt: ")
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with open(filepath, "rb") as f:
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text = f.read()
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for i in range(len(group_lists)):
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if group_lists[i][0] == group_id:
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klist = group_lists[i][1]
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else:
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klist = None
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logrus = []
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if klist is not None:
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for i in range(len(klist)):
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apattern = list(c.keylist(pattern=klist[i], secret=False))
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if apattern[0].can_encrypt == 1:
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logrus.append(apattern[0])
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else:
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pass
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try:
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ciphertext, result, sign_result = c.encrypt(text, recipients=logrus,
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add_encrypt_to=True)
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except gpg.errors.InvalidRecipients as e:
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for i in range(len(e.recipients)):
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for n in range(len(logrus)):
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if logrus[n].fpr == e.recipients[i].fpr:
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logrus.remove(logrus[n])
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else:
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pass
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try:
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ciphertext, result, sign_result = c.encrypt(text,
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recipients=logrus,
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add_encrypt_to=True)
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except:
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pass
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with open("{0}.asc".format(filepath), "wb") as f:
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f.write(ciphertext)
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else:
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pass
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# EOF
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91
lang/python/examples/howto/encrypt-to-group.py
Executable file
91
lang/python/examples/howto/encrypt-to-group.py
Executable file
@ -0,0 +1,91 @@
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, division, unicode_literals
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# Copyright (C) 2018 Ben McGinnes <ben@gnupg.org>
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation; either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License and the GNU
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# Lesser General Public Licensefor more details.
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#
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# You should have received a copy of the GNU General Public License and the GNU
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# Lesser General Public along with this program; if not, see
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# <http://www.gnu.org/licenses/>.
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import gpg
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import sys
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from groups import group_lists
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"""
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Uses the groups module to encrypt to multiple recipients.
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"""
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c = gpg.Context(armor=True)
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if len(sys.argv) > 3:
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group_id = sys.argv[1]
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filepath = sys.argv[2:]
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elif len(sys.argv) == 3:
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group_id = sys.argv[1]
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filepath = sys.argv[2]
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elif len(sys.argv) == 2:
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group_id = sys.argv[1]
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filepath = input("Enter the filename to encrypt: ")
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else:
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group_id = input("Enter the group name to encrypt to: ")
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filepath = input("Enter the filename to encrypt: ")
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with open(filepath, "rb") as f:
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text = f.read()
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for i in range(len(group_lists)):
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if group_lists[i][0] == group_id:
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klist = group_lists[i][1]
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else:
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klist = None
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logrus = []
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if klist is not None:
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for i in range(len(klist)):
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apattern = list(c.keylist(pattern=klist[i], secret=False))
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if apattern[0].can_encrypt == 1:
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logrus.append(apattern[0])
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else:
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pass
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try:
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ciphertext, result, sign_result = c.encrypt(text, recipients=logrus,
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add_encrypt_to=True)
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except gpg.errors.InvalidRecipients as e:
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for i in range(len(e.recipients)):
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for n in range(len(logrus)):
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if logrus[n].fpr == e.recipients[i].fpr:
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logrus.remove(logrus[n])
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else:
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pass
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try:
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ciphertext, result, sign_result = c.encrypt(text,
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recipients=logrus,
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add_encrypt_to=True,
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always_trust=True)
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except:
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pass
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with open("{0}.asc".format(filepath), "wb") as f:
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f.write(ciphertext)
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else:
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pass
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# EOF
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