Tiny cleanup I noticed while trying to fix/test another issue
(https://github.com/syncthing/syncthing/pull/9600). I shortly tried to
figure out what it was used for in the past, but gave up without
results.
Previously we queried cache with backslashes, and stored entries with
slashes. As in no cache hits ever for non-toplevel files. I also
eventually remembered that cache is disabled by default, so this is a
bit pointless, but still right :P
### Purpose
Avoid the issue where the folder marker is deleted by overzealous
cleanup tools because it's just a useless, empty directory.
We create a small file containing a an admonishment to not delete the
directory, and some metadata that is just for human consumption at the
moment. (But it would parse as a valid yaml file if we wanted to read
this, at some point.)
This will only apply when _creating_ a folder marker, that is, existing
setups will not gain the file automatically. Obviously, when using a
custom folder marker none of this applies.
Also, slightly adjust the permission bits for the folder marker directory and file on Unixes, making sure the group & write bits are unset.
### Testing
I've created and deleted a few folders and it appears to behave as I
expect.
### Screenshots
```
jb@ok:~/somefolder % ls -la
total 0
drwxr-xr-x 3 jb staff 96 May 1 08:52 ./
drwx------ 12 jb staff 384 May 1 08:52 ../
drwxr-xr-x 3 jb staff 96 May 1 08:52 .stfolder/
jb@ok:~/somefolder % ls -l .stfolder
total 8
-rw-r--r-- 1 jb staff 122 May 1 08:52 syncthing-folder-39a4b0.txt
jb@ok:~/somefolder % cat .stfolder/syncthing-folder-39a4b0.txt
# This directory is a Syncthing folder marker.
# Do not delete.
folderID: xtdca-cudyf
created: 2024-05-01T08:52:49+02:00
```
Currently the maximum delay is always derived automatically from the
initial delay. This is fine in most cases, but for some use cases (large
files that take a long time to write) we need to be able to set a longer
max delay than the computed value (e.g., 15s delay with 10min timeout).
This adds a small package `geoip` which knows how to download and manage
the Maxmind GeoLite2 database we use. This removes the need for various
scripts to download and manage the geoip database, something that today
happens on Docker startup for the relay pool server and using various
hand written hacks for the usage reporting server.
The database is downloaded when needed and then refreshed on a
best-effort basis weekly.
Bumps [github.com/quic-go/quic-go](https://github.com/quic-go/quic-go)
from 0.42.0 to 0.43.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/quic-go/quic-go/releases">github.com/quic-go/quic-go's
releases</a>.</em></p>
<blockquote>
<h2>v0.43.0</h2>
<h2><em>quic-go.net</em>: Launching a new Documentation Site</h2>
<p>With this release, we're launching a new documentation site for the
quic-go projects (quic-go itself, HTTP/3, webtransport-go, and soon,
masque-go): <a href="https://quic-go.net">quic-go.net</a>.</p>
<p>The documentation site aims to explain QUIC concepts and how they are
made accessible using quic-go's API. This site replaces the wiki, and
the ever-growing README files.</p>
<p>A lot of work has gone into the documentation already, but we're by
no means done yet. The entire source is public in <a
href="https://github.com/quic-go/docs/">https://github.com/quic-go/docs/</a>,
and we're happy about community contributions.</p>
<h2>HTTP Datagrams (RFC 9297)</h2>
<p>This release adds support for HTTP Datagrams (<a
href="https://datatracker.ietf.org/doc/html/rfc9297">RFC 9297</a>), both
on the client and on the server side (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4452">#4452</a>).
HTTP Datagrams are used in WebTransport in CONNECT-UDP (<a
href="https://datatracker.ietf.org/doc/html/rfc9298">RFC 9298</a>),
among others.</p>
<p>The new API for HTTP Datagrams is described on the new documentation
page: <a href="https://quic-go.net/docs/http3/datagrams/">HTTP
Datagrams</a>. The integration of HTTP Datagram support necessitated a
comprehensive refactor of the HTTP/3 package, resulting in several
breaking API changes listed below.</p>
<h2>Breaking Changes</h2>
<ul>
<li>quicvarint: functions now return an <code>int</code> instead the
internal <code>protocol.ByteCount</code> (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4365">#4365</a>)</li>
<li>http3: <code>Server.SetQuicHeaders</code> was renamed to
<code>SetQUICHeaders</code> (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4377">#4377</a>)</li>
<li>http3: <code>Server.QuicConfig</code> was renamed to
<code>QUICConfig</code> (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4384">#4384</a>)</li>
<li>http3: <code>RoundTripper.QuicConfig</code> was renamed to
<code>QUICConfig</code> (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4385">#4385</a>)</li>
<li>http3: <code>RoundTripOpt.CheckSettings</code> was removed (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4416">#4416</a>).
Use the new<code>SingleDestinationRoundTripper</code> API instead.</li>
<li>http3: the <code>HTTPStreamer</code> interface is now implemented by
the <code>http.ResponseWriter</code> (and not the
<code>http.Request.Body</code>) (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4469">#4469</a>)</li>
<li>include the maximum payload size in the
<code>DatagramTooLargeError</code> (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4470">#4470</a>)</li>
</ul>
<h2>Other Notable Changes</h2>
<ul>
<li>GSO and ECN is disabled on kernel versions older than 5 (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4456">#4456</a>)</li>
<li>http3: logging can be controlled using an <code>slog.Logger</code>
(<a
href="https://redirect.github.com/quic-go/quic-go/issues/4449">#4449</a>)</li>
<li>http3: HEAD requests can now be sent in 0-RTT (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4378">#4378</a>)</li>
<li>http3: duplicate QPACK encoder and decoder streams are not rejected
as required by the RFC (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4388">#4388</a>)</li>
<li>http3: Extended CONNECT are blocked until the server's SETTINGS are
received, as required by the RFC (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4450">#4450</a>)</li>
<li>http3: HTTP/3 client connections aren't removed if
<code>RoundTrip</code> errors due to a cancelled context (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4448">#4448</a>).
Thanks to <a
href="https://github.com/GeorgeMac"><code>@GeorgeMac</code></a>!</li>
<li>http3: sniff Content-Type when flushing the ResponseWriter (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4412">#4412</a>).
Thanks to <a
href="https://github.com/WeidiDeng"><code>@WeidiDeng</code></a>!</li>
<li>The <code>Context</code> exposed on the <code>quic.Stream</code> is
now derived from the connection's context (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4414">#4414</a>)</li>
<li>The UDP send and receive buffer size was increased to 7 MiB (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4455">#4455</a>).
Thanks to <a
href="https://github.com/bt90"><code>@bt90</code></a>!</li>
</ul>
<h2>Clarifications on the QUIC Stream State Machine</h2>
<h3>Calling CancelWrite after Close</h3>
<p>After a long and fruitful discussion (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4404">#4404</a>),
we decided to clarify that calling <code>CancelWrite</code> after
<code>Close</code> on a <code>SendStream</code> (or a bidirectional
stream) should cause a state transition from the "Data Sent"
to the "Reset Sent" state, as described in <a
href="https://datatracker.ietf.org/doc/html/rfc9000#section-3.1">section
3.1 of RFC 9000</a>. This matches the current behavior of quic-go,
however, it didn't match the API documentation (fixed in <a
href="https://redirect.github.com/quic-go/quic-go/issues/4419">#4419</a>).</p>
<p>This means that stream data will not be delivered reliably if
<code>CancelWrite</code> is called, and that this applies even if
<code>Close</code> was called before.</p>
<h3>Garbage Collection of Streams</h3>
<p>This release also changes the way streams are garbage-collected (and
the peer is granted additional limit to open a new stream), once they're
not needed anymore, in a subtle way:</p>
<ul>
<li>for the send direction of streams: <a
href="https://redirect.github.com/quic-go/quic-go/issues/4445">#4445</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="93c4785521"><code>93c4785</code></a>
http3: sniff Content-Type when flushing the ResponseWriter (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4412">#4412</a>)</li>
<li><a
href="c0250ce824"><code>c0250ce</code></a>
include the maximum payload size in the DatagramTooLargeError (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4470">#4470</a>)</li>
<li><a
href="34f4d1443f"><code>34f4d14</code></a>
http3: implement on the HTTPStreamer on the ResponseWriter, flush header
(<a
href="https://redirect.github.com/quic-go/quic-go/issues/4469">#4469</a>)</li>
<li><a
href="083ceb42f2"><code>083ceb4</code></a>
http3: rename Settings.EnableDatagram to EnableDatagrams (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4466">#4466</a>)</li>
<li><a
href="e1e5b6294d"><code>e1e5b62</code></a>
README: link to the new documentation site (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4464">#4464</a>)</li>
<li><a
href="2a37c53143"><code>2a37c53</code></a>
http3: add support for HTTP Datagrams (RFC 9297) (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4452">#4452</a>)</li>
<li><a
href="11b11594b2"><code>11b1159</code></a>
http3: fix race condition in client unit test (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4463">#4463</a>)</li>
<li><a
href="4b87539b1e"><code>4b87539</code></a>
delay completion of the receive stream until the reset error was read
(<a
href="https://redirect.github.com/quic-go/quic-go/issues/4460">#4460</a>)</li>
<li><a
href="bff131e546"><code>bff131e</code></a>
delay completion of the send stream until the reset error was delivered
(<a
href="https://redirect.github.com/quic-go/quic-go/issues/4445">#4445</a>)</li>
<li><a
href="12aa63824c"><code>12aa638</code></a>
disable GSO and ECN on kernels older than version 5 (<a
href="https://redirect.github.com/quic-go/quic-go/issues/4456">#4456</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/quic-go/quic-go/compare/v0.42.0...v0.43.0">compare
view</a></li>
</ul>
</details>
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### Purpose
Adds a new metric `syncthing_connections_active` which equals to the
amount of active connections per device.
Fixes#9527
<!--
Describe the purpose of this change. If there is an existing issue that
is
resolved by this pull request, ensure that the commit subject is on the
form
`Some short description (fixes#1234)` where 1234 is the issue number.
-->
### Testing
I've manually tested it by running syncthing with these changes locally
and examining the returned metrics from `/metrics`.
I've done the following things:
- Connect & disconnect a device
- Increase & decrease the number of connections and verify that the
value of the metric matches with the amount displayed in the GUI.
### Documentation
https://github.com/syncthing/docs/blob/main/includes/metrics-list.rst
needs to be regenerated with
[find-metrics.go](https://github.com/syncthing/docs/blob/main/_script/find-metrics/find-metrics.go)
## Authorship
Your name and email will be added automatically to the AUTHORS file
based on the commit metadata.
---------
Co-authored-by: Jakob Borg <jakob@kastelo.net>
### Purpose
Firefox uses the last specified favicon link for bookmarks, but only if
it is available on initial page load.
Remove the second link and use ng-href to change the icon instead.
I'm not really familiar with AngularJS, feel free to offer suggestions
for improvements.
### Testing
Briefly tested on Firefox 124.0.2 and Chrome 123.0.6312.105.
### Purpose
Resend our indexes since we fixed that index-sending issue.
I made a new thing to only drop the non-local-device index IDs, i.e.,
those for other devices. This means we will see a mismatch and resend
all indexes, but they will not. This is somewhat cleaner as it avoids
resending everything twice when two devices are upgraded, and in any
case, we have no reason to force a resend of incoming indexes here.
### Testing
It happens on my computer...
The commit 7e4e65ebf5 added links to
devices listed in the Shared With list in the folder info. However, it
only added them to those that had no superscript next to them.
With this change, the links are added to all devices regardless of
whether they have the superscript next to their names or not. The commit
also simplifies the code by using anchors directly instead of wrapping
them in spans.
Signed-off-by: Tomasz Wilczyński <twilczynski@naver.com>
