Gzip Compression in Bottle¶

最新推荐文章于 2023-01-06 06:30:00 发布

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最新推荐文章于 2023-01-06 06:30:00 发布

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本文探讨了在 Bottle 框架中实现 Gzip 压缩的需求及复杂性，包括按需压缩、避免重复压缩已压缩文件、支持动态文件等多种情况。并建议通过 WSGI 服务器如 CherryPy 提供的中间件来实现。

Recipes — Bottle 0.11.dev documentation

Gzip Compression in Bottle¶

Note

For a detailed discussion, see compression

A common feature request is for Bottle to support Gzip compression, which speeds up sites by compressing static resources (like CSS and JS files) during a request.

Supporting Gzip compression is not a straightforward proposition, due to a number of corner cases that crop up frequently. A proper Gzip implementation must:

Compress on the fly and be fast doing so.
Do not compress for browsers that don’t support it.
Do not compress files that are compressed already (images, videos).
Do not compress dynamic files.
Support two differed compression algorithms (gzip and deflate).
Cache compressed files that don’t change often.
De-validate the cache if one of the files changed anyway.
Make sure the cache does not get to big.
Do not cache small files because a disk seek would take longer than on-the-fly compression.

Because of these requirements, it is the recommendation of the Bottle project that Gzip compression is best handled by the WSGI server Bottle runs on top of. WSGI servers such as cherrypy provide a GzipFilter middleware that can be used to accomplish this