Onionr/onionr/onionrstorage/removeblock.py

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import sys, sqlite3
import onionrexceptions, onionrstorage
from onionrutils import stringvalidators
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from coredb import dbfiles
import storagecounter
def remove_block(block):
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'''
remove a block from this node (does not automatically blacklist)
**You may want blacklist.addToDB(blockHash)
'''
if stringvalidators.validate_hash(block):
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conn = sqlite3.connect(dbfiles.block_meta_db, timeout=30)
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c = conn.cursor()
t = (block,)
c.execute('Delete from hashes where hash=?;', t)
conn.commit()
conn.close()
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dataSize = sys.getsizeof(onionrstorage.getData(block))
storagecounter.StorageCounter().removeBytes(dataSize)
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else:
raise onionrexceptions.InvalidHexHash