106 lines
2.8 KiB
Python
106 lines
2.8 KiB
Python
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import base64
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import binascii
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import json
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import os
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import sys
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def decode_if_b64(raw):
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"""
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Decode a string if it's base 64
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:param raw: original bytes
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:return: True, decoded_result or False, Orignal bytes
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"""
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success = False
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result = raw
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try:
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if isinstance(raw, str):
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result = base64.decodebytes(bytes(raw, 'utf-8'))
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success = True
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except binascii.Error:
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success = False
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# if success: # result_bytes = b'xxxx\xx'
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# print('===================Start==================================')
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# print(raw)
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# print(result)
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# print('=====================End===================================')
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return success, result
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def check_tree(tree, prefix, f_write):
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"""
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Print the tree recursively with given path prefix
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:param tree: the tree to check
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:param prefix: path prefix to the root of this tree
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:param f_write: Which file to write into
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:return:
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"""
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if isinstance(tree, dict):
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for k, v in tree.items():
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prefix_path = prefix + "." + k
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if isinstance(v, dict) or isinstance(v, list): # continue sub-tree
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check_tree(v, prefix_path, f_write)
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else: # leaf
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result = v
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if 'cert' in k or 'id_bytes' in k or 'value' in k and 'hash' not in k:
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# print(prefix_path)
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success, result = decode_if_b64(v)
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if success:
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result = "b64({})".format(result)
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f_write.write("{}={}\n".format(prefix_path, result))
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elif isinstance(tree, list):
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for i, v in enumerate(tree):
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prefix_path = "{}[{}]".format(prefix, i)
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if isinstance(v, dict) or isinstance(v, list): # continue sub-tree
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check_tree(v, prefix_path, f_write)
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else: # leaf
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result = v
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if 'metadata' not in prefix_path:
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success, result = decode_if_b64(v)
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if success:
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# print(prefix_path)
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result = "b64({})".format(result)
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f_write.write("{}={}\n".format(prefix_path, result))
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else: # json only allow dict or list structure
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print("Wrong format of json tree")
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def process(directory):
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"""
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Process all json files under the path
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:param directory: Check json files under which directory
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:return:
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"""
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for f in os.listdir(directory):
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if f.endswith(".block.json"):
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file_name = os.path.join(json_dir, f)
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f_read = open(file=file_name, mode="r", encoding='utf-8')
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f_write = open(file=file_name + "-flat.json", mode="w",
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encoding='utf-8')
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check_tree(json.load(f_read), "", f_write)
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f_read.close()
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f_write.close()
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else:
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print("Ignore non-json file {}".format(f))
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# Usage python json_flatter.py [path_containing_json_files]
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# Print all json elements in flat structure
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# e.g.,
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# {
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# "a": {
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# "b": ["c", "d"]
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# }
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# }
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# ==>
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# a.b[0]=c
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# a.b[1]=d
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if __name__ == '__main__':
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json_dir = "../raft/channel-artifacts/"
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if len(sys.argv) > 1:
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json_dir = sys.argv[1]
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print("Will process json files under {}".format(json_dir))
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process(json_dir)
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