如何转义Multipart HTTP边界 [英] How to escape Multipart HTTP boundary

问题描述

假设我正在发送多部分请求（或响应）。我需要选择一个多部分边界，它不会出现在我的任何有效载荷中。但是，我的有效负载是大型二进制文件，我将它们流式传输到目的地。我想避免两次流式传输 - 一次扫描边界，一次流出。

Let's say I'm sending a multipart request (or response). I need to choose a multipart boundary which does not appear in any of my payloads. However, my payloads are large binary files and I am streaming them to the destination. I want to avoid streaming them twice - once to scan for the boundary and one to stream out.

所以我的问题是：如果出现边界是否有可能逃脱边界在有效载荷？如果是这样，怎么样？

So my question is: is it possible to escape the boundary if it appears in the payload? If so, how?

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