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显示协议缓冲区消息中的所有元素

[英]Show all elements in a protocol buffer message

原文 2011-06-16 13:24:34 0 1 c#/ reflection/ protocol-buffers

How can I show all elements in a protocol buffer message? 如何显示协议缓冲区消息中的所有元素？ Do I need to use reflection or convert the message into an XML message and then show it? 我需要使用反射还是将消息转换为XML消息然后显示？ Ideally some generic code that will work for any message. 理想情况下，一些适用于任何消息的通用代码。 Lars 拉尔斯

1 个解决方案

A protobuf message is internally ambiguous unless you have the .proto schema (or can infer a schema) available, as (for example) a "string" wire-type could represent: 除非您具有.proto模式（或可以推断模式），否则protobuf消息在内部是模棱两可的，例如（例如）“字符串”线型可以表示：

a utf-8 string utf-8字符串
a BLOB BLOB
a sub-message 子消息
a packed array 打包数组

Similar ambiguity exists for all wire-types (except perhaps "groups"). 所有导线类型（也许“组”除外）都存在类似的歧义。

My recommendation would be to run it through your existing deserialization process (against the type-model that you presumably have available in the project) to get an object model suitable for inspection. 我的建议是通过现有的反序列化过程（针对您可能在项目中使用的类型模型）运行它，以获得适合检查的对象模型。 From the object-model you have all the usual options - reflection, serialization via XmlSerializer / JavaScriptSerializer , etc. 在对象模型中，您可以使用所有通常的选项-反射，通过XmlSerializer / JavaScriptSerializer序列化等。

If all you have is the raw data, there is a wireshark plugin that might help, or protobuf-net exists a ProtoReader class that might be useful for parsing such a stream; 如果您只拥有原始数据，那么可以使用一个Wireshark插件来提供帮助，或者protobuf-net存在一个ProtoReader类，该类可能对解析此类流很有用。 but the emphasis here is that the stream is tricky to decipher in isolation. 但是这里强调的是，流很难被孤立地解密。