IBrowse 3.0 crashes at AmigaOS3 when browsing webpages at PHP/C/Tcl dev webservers

[lauri.ojansivu]

Hi,
I have IBrowse 3.0 crashing at AmigaOS3, when run at AmiBerry:

- Bug: https://howinfo.github.io/ibrowse/amiberry-ibrowsebug.png
- Specs: https://howinfo.github.io/ibrowse/amiberry-specs.png

Same happens at AmigaForever using AmigaOS 3.X template:

https://howinfo.github.io/ibrowse/amiforever-ibrowsebug.png

Crash happens when browsing with HTTP to these webservers, that I used at local network http://192.168.0.20:

- PHP 8.2 and 8.3 devserver: https://github.com/wekan/php/blob/main/phpdevserver.sh
- C89 webserver: https://github.com/wekan/hx/blob/main/prototypes/code/webserver/works/c/server.c
- Tcl webserver: https://github.com/wekan/hx/tree/main/prototypes/code/webserver/works/tcl8

Crash does not happen at:

- Nginx
- Apache
- Go webserver: https://github.com/wekan/hx/tree/main/prototypes/code/webserver/works/go
- FreePascal webserver: https://github.com/wekan/hx/blob/main/prototypes/code/webserver/works/freepascal/server.pas

BR,
Lauri

[Gerben van Kesteren]

Hi Lauri,

Perhaps a "solution" can be found here:

https://github.com/BlitterStudio/amiberry/issues/703

Regards,

Gerben

Op za 16 dec. 2023 08:35 schreef lauri.ojansivu <lauri.o...@gmail.com>:

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[lauri.ojansivu]

Hi,
after turning off cache:

- AmigaOS3: https://howinfo.github.io/ibrowse/ibrowsecache.png
- AmigaOS4: https://howinfo.github.io/ibrowse/ibrowse-os4-cache.png
 
Bug is still there, tested with PHP 8.3 devserver:

- AmigaOS3 shows bug: https://howinfo.github.io/ibrowse/ibrowsebug2.png
- AmigaOS4 freezes, mouse does not move: https://howinfo.github.io/ibrowse/ibrowse-os4-freeze.png

Any other webpage loads immediately OK, http and https.

BR,

Lauri

[lauri.ojansivu]

AWeb - APL 3.4 webbrowser does not crash with PHP devserver.

AWeb webbrowser comes with AmigaForever 3.X template.

But AWeb only works with HTTP webpages. IBrowse works with HTTPS.

BR,

Lauri

[Oliver Roberts]

Hi Lauri,

I suspect it is the bug listed at the top of the list at:
http://www.ibrowse-dev.net/historylog/next.php

This fix will be released before Christmas.

Oliver

Oliver Roberts / @Futaura / www.futaura.co.uk

[lauri.ojansivu]

Hi Oliver,

that is a great point !

That FreePascal webserver code sets ContentLength, and that could be why it does not crash:

https://github.com/wekan/hx/blob/main/prototypes/code/webserver/works/freepascal-router/wekan.pas#L16

I try to fix my other code, so that there would be correct ContentLength.

Thanks a lot !

BR,

Lauri

[Oliver Roberts]

Hi Lauri,

I should emphasize that this is a bug in IBrowse, not in your code. IBrowse
always handled an unknown content length correctly, until I fixed another
bug, which in turn created this bug :)

It is just unfortunate and annoying that this bug went unnoticed during
beta testing, but I guess it shows most websites do set that header.

[lauri.ojansivu]

Hi Oliver,

according to this, at HTTP Spec there is recommendation to have content length everywhere, where it is possible,

and some web frameworks do set content length properly:

https://stackoverflow.com/questions/9728269/content-length-and-other-http-headers

So while currently there is bug in IBrowse, I think there is also bug at my code that does not work like HTTP Spec.

When doing these minimal webserver examples, I like to fix them to work like at HTTP Spec.

I would think, that if there is no correct content legth, that could cause some additional delays etc, in some cases.

BR,

Lauri