Alexander Kanavin 74c93ec961 bitbake: fetch2/wget: set User-Agent to 'bitbake/version' in checkstatus()
This eliminates the last usage of 'fake mozilla' in bitbake, and
it's then truthful everywhere about presenting itself, or wget
(when that is used).

I understand this will make people nervous so I want to provide
an extended decription.

1. How was this tested?

- bitbake-selftest -k FetchCheckStatusTest
(tests a few hardcoded URIs, all passed)

- bitbake -k -c checkuri world
(runs checkstatus() over all recipes in oe-core, and all passed again -
this hopefully goes a long way to reassure everyone that hosts around
the world and various CDNs typically do not have a problem with user-agent
strings they haven't seen before or bitbake user-agent specifically)

2. What about that removed cloudflare comment?

I digged into git history, and I think it is not fully accurate. First, 'fake
mozilla' agent is used only for checkstatus() - in actual fetching with wget
it is not. And that has not been a problem for anyone.

Second, here's how the comment occured. Usage of 'fake mozilla' was introduced here:
https://git.yoctoproject.org/poky/commit/?h=master&id=ab26fdae9e5ae56bb84196698d3fa4fd568fe903

At that point it did not have to be specifically 'mozilla', the commit message
indicates that any User-Agent would have been ok. Mozilla was simply copied
from upstream version check for convenience.

Later on, the string was updated to a more recent Mozilla:
https://git.yoctoproject.org/poky/commit/?h=master&id=9f123238261a68e37cec634782e9320633cac5d4

The claim in the added comment become something else: that User-Agent *must* a browser,
without evidence or tests. Even though it demonstrably doesn't have to be - wget is ok.

3. What if someone has a server that is ok with wget agent, but not ok with bitbake agent?

Please see point one. It's not impossible but I think it's highly unlikely. I do think
we should rather tell servers the truth, and learn where the actual issues are. Then
we can consider options - whether that would be pretending to be wget, or allowing user-agent
to be configured. We should also add such servers to bitbake-selftest so we know what they
are.

(Bitbake rev: 234f9e810494394527f59fdf22eb86435d046d53)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2024-10-22 11:16:32 +01:00
2024-02-19 11:34:33 +00:00
2021-07-19 18:07:21 +01:00
2023-10-19 11:31:13 +01:00

Poky

Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for IDE integration.

Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.

As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.

The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/

OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.

Contribution Guidelines

Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/ for full details on how to submit changes.

Where to Send Patches

As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:

OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):

BitBake (files in bitbake/):

Documentation (files in documentation/):

meta-yocto (files in meta-poky/, meta-yocto-bsp/):

If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.

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