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ipn/ipnlocal: add peerapi goroutine fetch

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Between owners.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2021-04-22 13:01:42 -07:00
committed by Brad Fitzpatrick
parent 5835a3f553
commit 86e85d8934
2 changed files with 36 additions and 1 deletions
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20
ipn/ipnlocal/peerapi.go
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@@ -401,6 +401,10 @@ func (h *peerAPIHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
h.handlePeerPut(w, r)
return
}
if r.URL.Path == "/v0/goroutines" {
h.handleServeGoroutines(w, r)
return
}
who := h.peerUser.DisplayName
fmt.Fprintf(w, `<html>
<meta name="viewport" content="width=device-width, initial-scale=1">
@@ -582,3 +586,19 @@ func approxSize(n int64) string {
}
return fmt.Sprintf("~%dMB", n>>20)
}
func (h *peerAPIHandler) handleServeGoroutines(w http.ResponseWriter, r *http.Request) {
if !h.isSelf {
http.Error(w, "not owner", http.StatusForbidden)
return
}
var buf []byte
for size := 4 << 10; size <= 2<<20; size *= 2 {
buf = make([]byte, size)
buf = buf[:runtime.Stack(buf, true)]
if len(buf) < size {
break
}
}
w.Write(buf)
}