123 lines
4.7 KiB
Python
Executable File
123 lines
4.7 KiB
Python
Executable File
'''
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Onionr - Private P2P Communication
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This default plugin allows users to encrypt/decrypt messages without using blocks
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'''
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'''
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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# Imports some useful libraries
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import logger, config, threading, time, datetime, sys, json
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from onionrblockapi import Block
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from onionrutils import stringvalidators, bytesconverter
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from onionrcrypto import encryption, getourkeypair
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import onionrexceptions, onionrusers, signing
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import locale
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locale.setlocale(locale.LC_ALL, '')
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plugin_name = 'encrypt'
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class PlainEncryption:
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def __init__(self, api):
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self.api = api
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return
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def encrypt(self):
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# peer, data
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plaintext = ""
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encrypted = ""
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# detect if signing is enabled
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sign = True
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try:
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if sys.argv[3].lower() == 'false':
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sign = False
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except IndexError:
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pass
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try:
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if not stringvalidators.validate_pub_key(sys.argv[2]):
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raise onionrexceptions.InvalidPubkey
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except (ValueError, IndexError) as e:
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logger.error("Peer public key not specified", terminal=True)
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except onionrexceptions.InvalidPubkey:
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logger.error("Invalid public key", terminal=True)
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else:
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pubkey = sys.argv[2]
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# Encrypt if public key is valid
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logger.info("Please enter your message (ctrl-d or -q to stop):", terminal=True)
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try:
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for line in sys.stdin:
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if line == '-q\n':
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break
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plaintext += line
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except KeyboardInterrupt:
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sys.exit(1)
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# Build Message to encrypt
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data = {}
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keypair = getourkeypair.get_our_keypair()
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myPub = keypair[0]
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if sign:
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data['sig'] = signing.ed_sign(plaintext, key=keypair[1], encodeResult=True)
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data['sig'] = bytesconverter.bytes_to_str(data['sig'])
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data['signer'] = myPub
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data['data'] = plaintext
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data = json.dumps(data)
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plaintext = data
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encrypted = encryption.pub_key_encrypt(plaintext, pubkey, encodedData=True)
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encrypted = bytesconverter.bytes_to_str(encrypted)
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logger.info('Encrypted Message: \n\nONIONR ENCRYPTED DATA %s END ENCRYPTED DATA' % (encrypted,), terminal=True)
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def decrypt(self):
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plaintext = ""
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data = ""
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logger.info("Please enter your message (ctrl-d or -q to stop):", terminal=True)
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keypair = getourkeypair.get_our_keypair()
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try:
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for line in sys.stdin:
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if line == '-q\n':
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break
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data += line
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except KeyboardInterrupt:
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sys.exit(1)
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if len(data) <= 1:
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return
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encrypted = data.replace('ONIONR ENCRYPTED DATA ', '').replace('END ENCRYPTED DATA', '')
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myPub = keypair[0]
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decrypted = encryption.pub_key_decrypt(encrypted, privkey=keypair[1], encodedData=True)
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if decrypted == False:
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logger.error("Decryption failed", terminal=True)
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else:
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data = json.loads(decrypted)
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logger.info('Decrypted Message: \n\n%s' % data['data'], terminal=True)
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try:
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logger.info("Signing public key: %s" % (data['signer'],), terminal=True)
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assert signing.ed_verify(data['data'], data['signer'], data['sig']) != False
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except (AssertionError, KeyError) as e:
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logger.warn("WARNING: THIS MESSAGE HAS A MISSING OR INVALID SIGNATURE", terminal=True)
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else:
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logger.info("Message has good signature.", terminal=True)
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return
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def on_init(api, data = None):
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'''
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This event is called after Onionr is initialized, but before the command
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inputted is executed. Could be called when daemon is starting or when
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just the client is running.
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'''
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pluginapi = api
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encrypt = PlainEncryption(pluginapi)
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api.commands.register(['encrypt'], encrypt.encrypt)
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api.commands.register(['decrypt'], encrypt.decrypt)
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return
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