Simon LawandGitHub
358c975aea
Flatten the cmd/tailscale package hierarchy by extracting the jsonoutput package out of the cmd/tailscale/cli package. Updates #cleanup Change-Id: I92f80db75b0328e82f1596b6a42f6f6ef5a94bfa Signed-off-by: Simon Law <sfllaw@tailscale.com>
55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
// Copyright (c) Tailscale Inc & contributors
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// SPDX-License-Identifier: BSD-3-Clause
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// package tailnetlock registers the tailnet lock debug C2N handler. In the
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// future, all tailnet lock code should move here.
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package tailnetlock
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import (
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"fmt"
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"net/http"
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"strconv"
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"tailscale.com/cmd/tailscale/jsonoutput"
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"tailscale.com/feature"
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"tailscale.com/feature/buildfeatures"
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"tailscale.com/ipn/ipnlocal"
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)
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func init() {
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feature.Register("tailnetlock")
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ipnlocal.RegisterC2N("/debug/tka/log", handleC2NDebugTKALog)
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}
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const defaultC2NLogLimit = 50
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const maxC2NLogLimit = 1000
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func handleC2NDebugTKALog(b *ipnlocal.LocalBackend, w http.ResponseWriter, r *http.Request) {
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if !buildfeatures.HasDebug {
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http.Error(w, feature.ErrUnavailable.Error(), http.StatusNotImplemented)
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return
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}
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logf := b.Logger()
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logf("c2n: %s %s received", r.Method, r.URL)
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limit := defaultC2NLogLimit
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limitStr := r.URL.Query().Get("limit")
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if limitStr != "" {
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if parsed, err := strconv.Atoi(limitStr); err == nil {
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limit = min(parsed, maxC2NLogLimit)
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}
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}
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updates, err := b.TailnetLockLog(limit)
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if ipnlocal.IsTailnetLockNotActive(err) {
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http.Error(w, "tailnet lock not active", http.StatusBadRequest)
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return
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} else if err != nil {
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http.Error(w, fmt.Sprintf("failed to get tailnet lock log: %v", err), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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jsonoutput.PrintTailnetLockLogJSONV1(w, updates)
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}
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