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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 --- 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>
116 lines
3.0 KiB
Go
116 lines
3.0 KiB
Go
// Copyright (c) Tailscale Inc & contributors
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// SPDX-License-Identifier: BSD-3-Clause
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package controlhttp
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import (
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"net/http"
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"net/url"
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"sync/atomic"
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"time"
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"tailscale.com/health"
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"tailscale.com/net/dnscache"
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"tailscale.com/net/netmon"
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"tailscale.com/net/netx"
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"tailscale.com/tailcfg"
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"tailscale.com/tstime"
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"tailscale.com/types/key"
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"tailscale.com/types/logger"
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)
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const (
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// serverUpgradePath is where the server-side HTTP handler to
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// to do the protocol switch is located.
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serverUpgradePath = "/ts2021"
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)
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// NoPort is a sentinel value for Dialer.HTTPSPort to indicate that HTTPS
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// should not be tried on any port. It exists primarily for some localhost
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// tests where the control plane only runs on HTTP.
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const NoPort = "none"
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// Dialer contains configuration on how to dial the Tailscale control server.
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type Dialer struct {
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// Hostname is the hostname to connect to, with no port number.
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//
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// This field is required.
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Hostname string
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// MachineKey contains the current machine's private key.
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//
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// This field is required.
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MachineKey key.MachinePrivate
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// ControlKey contains the expected public key for the control server.
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//
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// This field is required.
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ControlKey key.MachinePublic
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// ProtocolVersion is the expected protocol version to negotiate.
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//
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// This field is required.
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ProtocolVersion uint16
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// HTTPPort is the port number to use when making a HTTP connection.
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//
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// If not specified, this defaults to port 80.
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HTTPPort string
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// HTTPSPort is the port number to use when making a HTTPS connection.
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//
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// If not specified, this defaults to port 443.
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//
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// If "none" (NoPort), HTTPS is disabled.
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HTTPSPort string
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// Dialer is the dialer used to make outbound connections.
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//
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// If not specified, this defaults to net.Dialer.DialContext.
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Dialer netx.DialFunc
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// DNSCache is the caching Resolver used by this Dialer.
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//
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// If not specified, a new Resolver is created per attempt.
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DNSCache *dnscache.Resolver
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// Logf, if set, is a logging function to use; if unset, logs are
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// dropped.
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Logf logger.Logf
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// NetMon is the [netmon.Monitor] to use for this Dialer.
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// It is optional.
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NetMon *netmon.Monitor
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// HealthTracker, if non-nil, is the health tracker to use.
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HealthTracker *health.Tracker
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// DialPlan, if set, contains instructions from the control server on
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// how to connect to it. If present, we will try the methods in this
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// plan before falling back to DNS.
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DialPlan *tailcfg.ControlDialPlan
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proxyFunc func(*http.Request) (*url.URL, error) // or nil
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// logPort80Failure is whether we should log about port 80 interceptions
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// and forcing a port 443 dial. We do this only once per "dial" method
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// which can result in many concurrent racing dialHost calls.
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logPort80Failure atomic.Bool
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// For tests only
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omitCertErrorLogging bool
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testFallbackDelay time.Duration
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// Clock, if non-nil, overrides the clock to use.
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// If nil, tstime.StdClock is used.
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// This exists primarily for tests.
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Clock tstime.Clock
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}
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func strDef(v1, v2 string) string {
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if v1 != "" {
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return v1
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}
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return v2
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}
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