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Zip
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URLs
| name | model | example | nested zips | relative URLs pointing outside zip | complexity | notes |
|---|---|---|---|---|---|---|
| sub-scheme | A URL is potentially a stack of URLs, the innermost URL represents the request URL and origin | zip:http://example.org/test!image.jpg (last "!" as separator) | zip:zip:/test!inner.zip!image.jpg | - (zip base URL is zip:/.../) | 1) URLs become a stack. 2) Zip URL needs its own URL object. 3) URL parser needs changing. | |
| zip-path | A URL gains a zip-path which is excluded from the request URL, origin computed per usual | http://example.org/test%!image.jpg ("%!" as separator) | /test%!inner.zip%!image.jpg | √ (../otherimage.jpg) | 1) URL parser needs changing. | generally does not work today |
| http://example.org/test.zip!image.jpg (".zip!" as separator, but request path includes trailing ".zip") | /test.zip!inner.zip!image.jpg | possibility for compatibility-shims | ||||
| fragment | Fetch is passed fragment as well in case response is application/zip and data needs extracting. Resources from a zip have a zip URL as base. | http://example.org/test#image.jpg | http://example.org/test#inner.zip!image.jpg (??) | - (zip base URL is zip:/.../) | 1) Inner and outer URL for resources. 2) Requires new scheme. 3) Fetch needs to be passed fragment. |
While zip-path could support relative addressing outside of a zip, it's not clear whether this is desirable.
Format
For http://fetch.spec.whatwg.org/#zip-archives we need to document the zip format. Either through reference to the PKWARE text, or via a new standard (XKCD-style).
Gecko
baku https://mxr.mozilla.org/mozilla-central/source/dom/file/ArchiveZipEvent.cpp baku https://mxr.mozilla.org/mozilla-central/source/dom/file/ArchiveZipFile.cpp baku so the first file (line 120~) baku reads the file and creates ArchiveZipItem for each file contained in the archive baku ArhiceZipFile implements a nsIInputStream and what it does is the reading of the content. baku you have an ArchiveZipFile for each file.