44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
"""Onionr - Private P2P Communication.
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Return a bool if a block is in the block metadata db or not
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"""
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import sqlite3
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from coredb import dbfiles
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import onionrexceptions
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from onionrutils import stringvalidators
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from etc import onionrvalues
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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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def has_block(hash: str) -> bool:
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"""Check for new block in the block meta db."""
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conn = sqlite3.connect(
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dbfiles.block_meta_db,
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timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
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c = conn.cursor()
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if not stringvalidators.validate_hash(hash):
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raise onionrexceptions.InvalidHexHash("Invalid hash")
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for result in c.execute("SELECT COUNT() FROM hashes WHERE hash = ?", (hash,)):
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if result[0] >= 1:
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conn.commit()
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conn.close()
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return True
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else:
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conn.commit()
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conn.close()
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return False
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return False
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