# Module `onionr.onionrcommands.banblocks`

Onionr - Private P2P Communication

This file contains the command for banning blocks from the node

Source code

    '''
        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
    from onionrstorage import removeblock
    from onionrblocks import onionrblacklist

    def ban_block():
        blacklist = onionrblacklist.OnionrBlackList()
        try:
            ban = sys.argv[2]
        except IndexError:
            ban = logger.readline('Enter a block hash:')
        if stringvalidators.validate_hash(ban):
            if not blacklist.inBlacklist(ban):
                try:
                    blacklist.addToDB(ban)
                    removeblock.remove_block(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:
            logger.error('Invalid block hash', terminal=True)

    ban_block.onionr_help = "<block hash>: deletes and blacklists a block"

## Functions

`def ban_block()`
  Source code

      def ban_block():
          blacklist = onionrblacklist.OnionrBlackList()
          try:
              ban = sys.argv[2]
          except IndexError:
              ban = logger.readline('Enter a block hash:')
          if stringvalidators.validate_hash(ban):
              if not blacklist.inBlacklist(ban):
                  try:
                      blacklist.addToDB(ban)
                      removeblock.remove_block(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:
              logger.error('Invalid block hash', terminal=True)