83 lines
2.6 KiB
Python
Executable File
83 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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import json
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import os
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import sys
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from datetime import datetime
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parser = argparse.ArgumentParser()
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parser.add_argument('-n', '--nodesjson', action='store', required=True,
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help='old nodes.json file you want to read firstseen from')
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parser.add_argument('-s', '--state', action='store', required=True,
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help='state.json you want to store')
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args = parser.parse_args()
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with open(os.path.realpath(args.nodesjson), encoding='UTF-8') as handle:
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legacy_db = json.load(handle)
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# w/o a version tag we cannot decide how to walk and interpret the nodes.json
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assert ('version' in legacy_db)
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yanic_db_path = os.path.realpath(args.state)
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with open(yanic_db_path, encoding='UTF-8') as handle:
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yanic_db = json.load(handle)
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total = 0
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updated = 0
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yanic_date_format = '%Y-%m-%dT%H:%M:%S%z'
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v1_date_format = '%Y-%m-%dT%H:%M:%S.%f' # 2017-05-31T18:30:19.759610
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v2_date_format = '%Y-%m-%dT%H:%M:%S.%fZ' # 2015-08-22T16:05:02.000Z
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version = legacy_db['version']
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print('nodes.json is in v{} format'.format(version))
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fallback_date_format = None
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if version == 1:
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legacy_date_format = v1_date_format # ffmap-backend
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elif version == 2:
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legacy_date_format = v2_date_format # hopglass
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fallback_date_format = yanic_date_format # other yanic
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else:
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print('unhandled nodes.json version number!', file=sys.stderr)
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sys.exit(1)
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for nodeid, node in yanic_db.get('nodes', {}).items():
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legacy_node = None
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if version == 1:
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# v1 nodes.json is a dict, so lookups are cheap
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legacy_node = legacy_db.get('nodes', {}).get(nodeid, None)
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elif version == 2:
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# v2 nodes.json however carries nodes as a list of dicts …
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legacy_node = next((
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candidate for candidate in legacy_db.get('nodes', [])
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if candidate['nodeinfo']['node_id'] == nodeid), None)
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if legacy_node is not None:
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try:
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dt = datetime.strptime(legacy_node['firstseen'], legacy_date_format)
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except ValueError as ex:
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# time format mismatch, try fallback format
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if fallback_date_format is not None:
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dt = datetime.strptime(legacy_node['firstseen'],
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fallback_date_format)
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else:
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# or if none is set, re-raise the original exception
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raise ex
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dts = dt.strftime(yanic_date_format)
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if node['firstseen'] != dts:
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node['firstseen'] = dts
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updated += 1
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total += 1
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with open(yanic_db_path, 'w') as f:
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json.dump(yanic_db, f)
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print('found {} nodes, {} changed.'.format(total, updated))
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