fix reading post bodies

[withinboredom]

Now that golang/go#15527 is supposedly fixed, this condition should be no-longer needed. Further, if php didn't request enough bytes, this condition would be hit. It appears PHP requests chunks ~2mb in size at a time.

Fixes #122

[dunglas]

Would it be possible to add a test?

[withinboredom]

Tested with the reproducer and 70mb file:

Laravel.and.17.more.pages.-.Personal.-.Microsoft.Edge.2024-03-24.11-20-19.mp4

[withinboredom]

Would it be possible to add a test?

Yes... but do we want to? That would mean putting large test file in the repo.

[dunglas]

@withinboredom not necessarily, we can tweak this test for instance: https://github.com/dunglas/frankenphp/blob/main/testdata/large-request.php

[withinboredom]

on it!

[dunglas]

Thank you

[francislavoie]

Re golang/go#15527, that's an opt-in fix, EnableDuplex() needs to be called to fix it. We added support for that in Caddy recently https://caddyserver.com/docs/caddyfile/options#enable-full-duplex. But I mean, if you've tested it then 👍 I suppose!