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Assemble virtual zip files and serve them over HTTP in Golang

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zipserve

Package zipserve implements serving virtual zip archives over HTTP, with support for range queries and resumable downloads. Zipserve keeps only the archive headers in memory (similar to archive/zip when streaming). Zipserve fetches file data on demand from user-provided io.ReaderAt or zipserve.ReaderAt, so the file data can be fetched from a remote location. zipserve.ReaderAt supports passing request context to the backing store.

The user has to provide CRC32 of the uncompressed data, compressed and uncompressed size of files in advance. These can be computed for example during file uploads.

Differences to archive/zip

  • Deprecated FileHeader fields present in archive/zip (CompressedSize, UncompressedSize, ModifiedTime, ModifiedDate) were removed in this package. This means the extended time information (unix timestamp) is always emitted. If you use Modified in archive/zip, the generated file should be identical.

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Status of the project

The module is stable and supports writing almost everything as archive/zip (see Differences to archive/zip above), so there aren't many commits. I update the module when a new version of Go is released or on request.

License

Three clause BSD (same as Go), see LICENSE.

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Assemble virtual zip files and serve them over HTTP in Golang

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