Handle frontend loaded zip archive content (h5p, bloomd) that contains large files

[rtibbles]

Summary

• Adds range request support to the zipcontent endpoint, so that we can serve audio and video files from inside archive files
• Allows the zipcontent endpoint once again to serve all recognized archive formats, so we can defer to the zipcontent endpoint for large files
• Updates frontend archive handling to fetch zip directory entries first, and then load zip data in segments, excluding large files
• Updates h5p handling to defer to the zipcontent backend for large files (> 500KB)
• Will update this for bloom handling when #12752 is merged

References

Fixes #9761

Reviewer guidance

Does this work for H5P files that contain large media assets like videos and audio?

Questions - this covers the previously encountered case where H5P files contained incredibly large individual files, but doesn't cover the case where the archive files themselves are just enormous, but contain lots of tiny files. Have we encountered any archives where this may be the issue? Is there any benefit to limiting the size of segments and lazily loading them on demand? These may be empirical questions best answered by looking at lots of H5P files.

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Testing checklist

• [ ] Contributor has fully tested the PR manually
• [ ] If there are any front-end changes, before/after screenshots are included
• [ ] Critical user journeys are covered by Gherkin stories
• [ ] Critical and brittle code paths are covered by unit tests

PR process

• [ ] PR has the correct target branch and milestone
• [ ] PR has 'needs review' or 'work-in-progress' label
• [ ] If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• [ ] If this is an important user-facing change, PR or related issue has a 'changelog' label
• [ ] If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[github-actions[bot]]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.18.0.dev0_git.20241107000752.pex
Windows Installer (EXE)	kolibri-0.18.0.dev0+git.20241107000752-windows-setup-unsigned.exe
Debian Package	kolibri_0.18.0.dev0+git.20241107000752-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.18.0.dev0+git.20241107000752.dmg
Android Package (APK)	kolibri-0.18.0.dev0+git.20241107000752-0.1.4-debug.apk
TAR file	kolibri-0.18.0.dev0+git.20241107000752.tar.gz
WHL file	kolibri-0.18.0.dev0+git.20241107000752-py2.py3-none-any.whl

[pcenov]

Hi @rtibbles,

I noticed the following issues:

1. A lot of resources are not loading at all. Examples are 'Advent Calendar (beta)', 'Interactive book', 'Course Presentation', 'Virtual Tour (360)'. For others it takes noticeably longer to load.

https://github.com/user-attachments/assets/b7bcb117-fbfd-48c9-bee4-5874028101d7

2. In some resources there are missing icons, examples are 'Speak the Words Set':

And 'Unidad 1 - Herramientas para el empoderamiento' from the QA channel, where the player buttons are missing:

I've created the following test channel zapif-babuz using the provided example resources at https://h5p.org/content-types-and-applications so that you can have a look and replicate the issues.

[rtibbles]

Thanks @pcenov - I guess there was a good reason I marked this as a draft!