Amazon S3压缩文件? [英] Amazon S3 Compressing Files?

问题描述

几年前，我将一些照片上传到S3.我今天尝试检索它们时，文件似乎已损坏，因为无法在浏览器或照片编辑器中打开它们.查看文件属性，似乎文件已被压缩，因为有一个 x-amz-meta-compression-algorithm 键，其值为 zlib 和一个 x-amz-meta-compression-original-size ，其值为 53890 .但是，S3上文件的大小为 53761 .我没有在上传文件之前对其进行压缩.如何解压缩这些文件?

A few years ago I uploaded some photos to S3. When I try to retrieve them today, the files seem to be corrupted, as I am unable to open them in the browser or with a photo editor. Looking at the file properties, it seems the files have been compressed, as there is a x-amz-meta-compression-algorithm key with the value zlib and a x-amz-meta-compression-original-size with a value of 53890. However, the size of the file on S3 is 53761. I did not compress the files before uploading them. How can I uncompress these files?

推荐答案

您是否下载了文件并使用 file 命令确定其类型?

Did you download the file and determine its type using file command?

如果确实使用zlib压缩，或者如果 file 命令显示数据，请尝试以下链接中的可接受答案:

If it is indeed zlib compressed or if file command says data, try the accepted answer in this link: https://unix.stackexchange.com/questions/22834/how-to-uncompress-zlib-data-in-unix

printf "\x1f\x8b\x08\x00\x00\x00\x00\x00" |cat - zlib.raw |gzip -dc > myfile

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