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This file was never truly necessary and has never actually been used in
the history of Tailscale's open source releases.
A Brief History of AUTHORS files
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The AUTHORS file was a pattern developed at Google, originally for
Chromium, then adopted by Go and a bunch of other projects. The problem
was that Chromium originally had a copyright line only recognizing
Google as the copyright holder. Because Google (and most open source
projects) do not require copyright assignemnt for contributions, each
contributor maintains their copyright. Some large corporate contributors
then tried to add their own name to the copyright line in the LICENSE
file or in file headers. This quickly becomes unwieldy, and puts a
tremendous burden on anyone building on top of Chromium, since the
license requires that they keep all copyright lines intact.
The compromise was to create an AUTHORS file that would list all of the
copyright holders. The LICENSE file and source file headers would then
include that list by reference, listing the copyright holder as "The
Chromium Authors".
This also become cumbersome to simply keep the file up to date with a
high rate of new contributors. Plus it's not always obvious who the
copyright holder is. Sometimes it is the individual making the
contribution, but many times it may be their employer. There is no way
for the proejct maintainer to know.
Eventually, Google changed their policy to no longer recommend trying to
keep the AUTHORS file up to date proactively, and instead to only add to
it when requested: https://opensource.google/docs/releasing/authors.
They are also clear that:
> Adding contributors to the AUTHORS file is entirely within the
> project's discretion and has no implications for copyright ownership.
It was primarily added to appease a small number of large contributors
that insisted that they be recognized as copyright holders (which was
entirely their right to do). But it's not truly necessary, and not even
the most accurate way of identifying contributors and/or copyright
holders.
In practice, we've never added anyone to our AUTHORS file. It only lists
Tailscale, so it's not really serving any purpose. It also causes
confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header
in other open source repos which don't actually have an AUTHORS file, so
it's ambiguous what that means.
Instead, we just acknowledge that the contributors to Tailscale (whoever
they are) are copyright holders for their individual contributions. We
also have the benefit of using the DCO (developercertificate.org) which
provides some additional certification of their right to make the
contribution.
The source file changes were purely mechanical with:
git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g'
Updates #cleanup
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
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Updates #15160
Signed-off-by: David Anderson <dave@tailscale.com>
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Allows the use of tsweb without pulling in all of the heavy prometheus
client libraries, protobuf and so on.
Updates #15160
Signed-off-by: David Anderson <dave@tailscale.com>
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Allow customizing the title on the debug index page. Also add methods
for registering http.HandlerFunc to make it a little easier on callers.
Updates tailscale/corp#27058
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
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Updates tailscale/corp#26016
Change-Id: I47a5671e881cc092d83c1e992e2271f90afcae7e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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This reverts commit 30c9189ed307df6f2c1567aa7945bde77bb54c52.
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
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* tsweb: update ServeMux matching to 1.22.0 syntax
Updates #cleanup
Go 1.22.0 introduced the ability to use more expressive routing patterns
that include HTTP method when constructing ServeMux entries.
Applications that attempted to use these patterns in combination with
the old `tsweb.Debugger` would experience a panic as Go would not permit
the use of matching rules with mixed level of specificity. We now
specify the method for each `/debug` handler to prevent
incompatibilities.
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
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This reverts commit 291f91d164f1ec60ca77c0cb935a7895ac4cc555.
Updates #cleanup
This PR needs additional changes to the registration of child handlers under /debug
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
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Updates #cleanup
Go 1.22.0 introduced the ability to use more expressive routing patterns
that include HTTP method when constructing ServeMux entries.
Applications that attempted to use these patterns in combination with
the old `tsweb.Debugger` would experience a panic as Go would not permit
the use of matching rules with mixed level of specificity.
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
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plugin-types is deprecated, and setting object-src: 'none' is best
practice. This should result in no functional change.
Fixes #10718
Signed-off-by: Chris Palmer <cpalmer@tailscale.com>
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Updates #cleanup
Signed-off-by: David Anderson <danderson@tailscale.com>
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Allow inline CSS for debug handlers to make prototyping easier. These
are generally not accessible to the public and the small risk of CSS
injection via user content seems acceptable.
Also allow form submissions on the same domain, instead of banning all
forms. An example of such form is
http://webhooks.corp.ts.net:6359/debug/private-nodes/
Updates #3576
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
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Add a few helper functions in tsweb to add common security headers to handlers. Use those functions for all non-tailscaled-facing endpoints in derper.
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
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This splits Prometheus metric handlers exposed by tsweb into two
modules:
- `varz.Handler` exposes Prometheus metrics generated by our expvar
converter;
- `promvarz.Handler` combines our expvar-converted metrics and native
Prometheus metrics.
By default, tsweb will use the promvarz handler, however users can keep
using only the expvar converter. Specifically, `tailscaled` now uses
`varz.Handler` explicitly, which avoids a dependency on the
(heavyweight) Prometheus client.
Updates https://github.com/tailscale/corp/issues/10205
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
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The handler will expose built-in process and Go metrics by default,
which currently duplicate some of the expvar-proxied metrics
(`goroutines` vs `go_goroutines`, `memstats` vs `go_memstats`), but as
long as their names are different, Prometheus server will just scrape
both.
This will change /debug/varz behaviour for most tsweb binaries, but
notably not for control, which configures a `tsweb.VarzHandler`
[explicitly](https://github.com/tailscale/corp/blob/a5b5d5167f1a2b780d313ec6a30e7b96dfa25b2d/cmd/tailcontrol/tailcontrol.go#L779)
Updates https://github.com/tailscale/corp/issues/10205
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
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The other formerly exported values aren't used outside the package,
so just unexport them.
Signed-off-by: David Anderson <danderson@tailscale.com>
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This updates all source files to use a new standard header for copyright
and license declaration. Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.
This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.
Updates #6865
Signed-off-by: Will Norris <will@tailscale.com>
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My favorite part of generics.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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It was accidentally deleted in the earlier 0022c3d2e (#2143) refactor.
Lock it in with a test.
Fixes tailscale/corp#2503
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Signed-off-by: David Anderson <danderson@tailscale.com>
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