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Add support in the soup and curl fetchers to send the `If-None-Match`
and `If-Modified-Since` request headers, and pass on the `ETag` and
`Last-Modified` response headers.
This currently introduces no functional changes, but once call sites
provide the appropriate integration, this will allow HTTP caching to
happen with requests (typically with metadata requests, where the data
is not immutable due to being content-addressed). That should reduce
bandwidth requirements.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
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Use GIOErrorEnum as the return value for
_ostree_fetcher_http_status_code_to_io_error(), to avoid an
implicit cast from GIOError.
Closes: #1857
Approved by: cgwalters
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Use the same G_IO_ERROR_* values for HTTP status codes in both fetchers.
The libsoup fetcher still handles a few more internal error codes than
the libcurl one; this could be built on in future.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #1594
Approved by: jlebon
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Allow network requests to be re-queued if they failed with a transient
error, such as a socket timeout. Retry each request up to a limit
(default: 5), and only then fail the entire pull and propagate the error
to the caller.
Add a new ostree_repo_pull_with_options() option, n-network-retries, to
control the number of retries (including setting it back to the old
default of 0, if the caller wants).
Currently, retries are not supported for FetchDeltaSuperData requests,
as they are not queued. Once they are queued, adding support for retries
should be trivial. A FIXME comment has been left for this.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #1594
Approved by: jlebon
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SPDX License List is a list of (common) open source
licenses that can be referred to by a “short identifier”.
It has several advantages compared to the common "license header texts"
usually found in source files.
Some of the advantages:
* It is precise; there is no ambiguity due to variations in license header
text
* It is language neutral
* It is easy to machine process
* It is concise
* It is simple and can be used without much cost in interpreted
environments like java Script, etc.
* An SPDX license identifier is immutable.
* It provides simple guidance for developers who want to make sure the
license for their code is respected
See http://spdx.org for further reading.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Closes: #1439
Approved by: cgwalters
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This came up in allowing Fedora infrastructure to work around a libcurl bug with
HTTP2: https://pagure.io/atomic-wg/issue/405
Closes: https://github.com/ostreedev/ostree/issues/1405
Closes: #1406
Approved by: jlebon
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A lot of the libostree code is honestly too complex for its
own good (this is mostly my fault). The way we do HTTP writes
is still one of those. The way the fetcher writes tempfiles,
then reads them back in is definitely one of those.
Now that we've dropped the "partial object" bits in:
https://github.com/ostreedev/ostree/pull/1176 i.e. commit
https://github.com/ostreedev/ostree/commit/0488b4870e80ef575d8b0edf6f2a9e5ad54bf4df
we can simplify things a lot more by having the fetcher
return an `O_TMPFILE` rather than a filename.
For trusted archive mirroring, we need to enable linking
in the tmpfiles directly.
Otherwise for at least content objects they're compressed, so we couldn't link
them in. For metadata, we need to do similar logic to what we have around
`mmap()` to only grab a tmpfile if the size is large enough.
Closes: #1252
Approved by: jlebon
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We added a `.dir-locals.el` in commit: 9a77017d87b74c5e2895cdd64ad098018929403f
There's no need to have it per-file, with that people might think
to add other editors, which is the wrong direction.
Closes: #1206
Approved by: jlebon
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Doing this in prep for libglnx tmpdir porting, but I think we should also do
this because the partial fetch code IMO was never fully baked; among other
things it was never integrated into the scheme we came up with for "boot id
sync" that we use for complete/staged objects.
There's a lot of complexity here that while we have some coverage for, I think
we need to refocus on the core functionality. The libcurl backend doesn't have
an equivalent to this today.
In particular for small objects, this is simply overly complex. The downside is
clearly for large objects like FAH's 61MB initramfs; not being able to resume
fetches of those is unfortunate.
In practice though, I think most people should be using deltas, and we need to
make sure deltas work for large objects anyways.
Further ultimately the peer-to-peer work should help a lot for people
with truly unreliable connections.
Closes: #1176
Approved by: jlebon
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Currently in Fedora we don't sign summaries, and every use of
`rpm-ostree` would emit to the journal an error when we failed
to fetch it.
Fix this by having `OSTREE_FETCHER_REQUEST_OPTIONAL_CONTENT` tell the fetcher
not to journal 404 errors. While fixing this, we had a mix of two booleans vs
the flags; fix things so we consistently use the flags in the fetcher and pull
code.
Closes: #1004
Approved by: mbarnes
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Particularly when HTTP requests fail, I really want a lot more information.
We could theoretically stuff it into the `GError` message field, but
that gets ugly *fast*.
Using the systemd journal allows us to log things in a structured fashion.
Right now e.g. rpm-ostree won't be aware of this additional information,
but I think we could teach it to be down the line.
In the short term, users can learn to find it from `systemctl status rpm-ostreed`
or `journalctl -b -r -u rpm-ostreed`, etc.
One thing I'd like to do next is log successful fetches of e.g. commit objects
as well with more information about the originating server (things like the
final URL if we were redirected, did we use TLS pinning, what was the negotiated
TLS version+cipher, etc).
Closes: #708
Approved by: jlebon
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Conceptually these now lay on top of the core API, and don't reference libsoup.
This is preparation for libcurl porting, but it's also just generally better.
Closes: #636
Approved by: jlebon
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