將protoc --decode_raw的output轉換成json

Question

我正在嘗試將 protobuf blob 的消息轉換為 json，但沒有相應的架構。 這是我正在使用的代碼，但它沒有獲得嵌套對象。 也許有一種方法可以在沒有模式的情況下轉換 blob？ 我只需要一個 json。變量名對我來說並不重要。

message_dict = {}
for line in result.stdout.split("\n"):
    if not line:
        continue
    parts = line.split(": ")
    field_number = parts[0]
    value = parts[1] if len(parts) > 1 else None
    message_dict[field_number] = value

Answer 1

您可以根據從--decode_raw中學到的信息自己編寫.proto模式。

之后，很容易使用 function google.protobuf.json_format.MessageToJson 。

Answer 2

對可能有幫助的人

def proto_to_json():
try:
    # Run the protoc command
    output = subprocess.run(["protoc", "--decode_raw"],
                            stdin=open("tiktok.txt", "r", encoding="utf-8"),
                            capture_output=True,
                            text=True)
except UnicodeDecodeError:
    output = subprocess.run(["protoc", "--decode_raw"],
                            stdin=open("tiktok.txt", "r", errors='ignore'),
                            capture_output=True,
                            text=True, stdout=subprocess.PIPE)

output_lines = output.stdout.strip().split("\n")
output_lines = [line.strip() for line in output_lines]

# Define an empty dictionary to store the output
output_dict = {}

# Define a stack to keep track of the nested dictionaries
stack = [output_dict]

# Iterate through the lines and add the key-value pairs to the dictionary
for line in output_lines:
    if ": " in line:
        key, value = line.split(": ", 1)
        stack[-1][key] = value
    elif "{" in line:
        key = line.replace("{", "")
        new_dict = {}
        stack[-1][key] = new_dict
        stack.append(new_dict)
    elif "}" in line:
        stack.pop()

# Convert the dictionary to a JSON string
json_output = json.dumps(output_dict, indent=4)

# Write the JSON string to a file
with open("file_name", "w") as f:
    f.write(json_output)

return json_output