Onionr/src/onionrcommands/banblocks.py

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'''
Onionr - Private P2P Communication
This file contains the command for banning blocks from the node
'''
'''
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
'''
import sys
import logger
from onionrutils import stringvalidators
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from onionrstorage import removeblock
from onionrstorage import deleteBlock
from onionrblocks import onionrblacklist
from utils import reconstructhash
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def ban_block():
"""Deletes a block, permanently blacklisting it"""
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blacklist = onionrblacklist.OnionrBlackList()
try:
ban = sys.argv[2]
except IndexError:
# Get the hash if its not provided as a CLI argument
ban = logger.readline('Enter a block hash:').strip()
# Make sure the hash has no truncated zeroes
ban = reconstructhash.reconstruct_hash(ban)
if stringvalidators.validate_hash(ban):
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if not blacklist.inBlacklist(ban):
try:
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blacklist.addToDB(ban)
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removeblock.remove_block(ban)
deleteBlock(ban)
except Exception as error:
logger.error('Could not blacklist block', error=error, terminal=True)
else:
logger.info('Block blacklisted', terminal=True)
else:
logger.warn('That block is already blacklisted', terminal=True)
else:
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logger.error('Invalid block hash', terminal=True)
ban_block.onionr_help = "<block hash>: deletes and blacklists a block"