Handle 'Range Retrieval Requests'

[PsypherPunk]

It would be useful if OpenWayback could handle 'Range Retrieval Requests', i.e. return an Accept-Ranges header and handle Content-Range requests.

The motivation for this is to facilitate playing videos straight out of WARC files (the above is, as far as I am aware, how the HTML5 video handles playback).

It's likely that the above would only really work with non-compressed (W)ARCs as one can't arbitrarily skip around in gzip streams; it might be possible to handle compressed records via some sort of caching but if at all possible this should probably wait for a later iteration.

[RogerMathisen]

Could this have been addressed by Internet Archive?
Ref: internetarchive#66

[kngenie]

internetarchive#66 just passes through Content-Range header field recorded in the capture to playback response. Wayback does not handle Content-Range request for itself. It does not address this issue, I suppose.

[kngenie]

We hit this issue in our service, and implemented a limited support for Range request: internetarchive#78
It has several limitations and can be slow for large data, but working good enough for the case at hand. I'll submit a pull request.