52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
"""Onionr - Private P2P Communication.
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Return a useful tuple of (metadata (header), meta, and data) by accepting raw block data
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"""
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from json import JSONDecodeError
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import ujson as json
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from onionrutils import bytesconverter
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import logger
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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 get_block_metadata_from_data(block_data):
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"""
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accepts block contents as string, returns a tuple of
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metadata, meta (meta being internal metadata, which will be
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returned as an encrypted base64 string if it is encrypted, dict if not).
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"""
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meta = {}
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metadata = {}
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data = block_data
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try:
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block_data = block_data.encode()
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except AttributeError:
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pass
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try:
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metadata = json.loads(bytesconverter.bytes_to_str(block_data[:block_data.find(b'\n')]))
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except JSONDecodeError:
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pass
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except ValueError:
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logger.warn("Could not get metadata from:", terminal=True)
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logger.warn(block_data, terminal=True)
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else:
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data = block_data[block_data.find(b'\n'):]
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meta = metadata['meta']
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return (metadata, meta, data)
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