52 lines
2.1 KiB
Python
Executable File
52 lines
2.1 KiB
Python
Executable File
'''
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Onionr - Private P2P Communication
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Import block data and save it
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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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import onionrexceptions, logger
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from onionrutils import validatemetadata, blockmetadata
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from coredb import blockmetadb
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import onionrblacklist, onionrstorage
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import onionrcrypto as crypto
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def importBlockFromData(content):
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blacklist = onionrblacklist.OnionrBlackList()
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retData = False
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dataHash = crypto.hashers.sha3_hash(content)
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if blacklist.inBlacklist(dataHash):
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raise onionrexceptions.BlacklistedBlock('%s is a blacklisted block' % (dataHash,))
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try:
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content = content.encode()
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except AttributeError:
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pass
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metas = blockmetadata.get_block_metadata_from_data(content) # returns tuple(metadata, meta), meta is also in metadata
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metadata = metas[0]
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if validatemetadata.validate_metadata(metadata, metas[2]): # check if metadata is valid
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if crypto.cryptoutils.verify_POW(content): # check if POW is enough/correct
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logger.info('Block passed proof, saving.', terminal=True)
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try:
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blockHash = onionrstorage.set_data(content)
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except onionrexceptions.DiskAllocationReached:
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pass
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else:
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blockmetadb.add_to_block_DB(blockHash, dataSaved=True)
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blockmetadata.process_block_metadata(blockHash) # caches block metadata values to block database
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retData = True
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return retData |