cmd/tailscale: add status subcommand
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
committed by
Brad Fitzpatrick
parent
810c1e9704
commit
a4ef345737
+14
-9
@@ -8,6 +8,7 @@ import (
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"time"
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"tailscale.com/control/controlclient"
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"tailscale.com/ipn/ipnstate"
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"tailscale.com/tailcfg"
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"tailscale.com/types/empty"
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"tailscale.com/wgengine"
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@@ -45,15 +46,16 @@ type NetworkMap = controlclient.NetworkMap
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// that they have not changed.
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// They are JSON-encoded on the wire, despite the lack of struct tags.
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type Notify struct {
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Version string // version number of IPN backend
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ErrMessage *string // critical error message, if any
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LoginFinished *empty.Message // event: non-nil when login process succeeded
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State *State // current IPN state has changed
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Prefs *Prefs // preferences were changed
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NetMap *NetworkMap // new netmap received
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Engine *EngineStatus // wireguard engine stats
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BrowseToURL *string // UI should open a browser right now
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BackendLogID *string // public logtail id used by backend
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Version string // version number of IPN backend
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ErrMessage *string // critical error message, if any
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LoginFinished *empty.Message // event: non-nil when login process succeeded
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State *State // current IPN state has changed
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Prefs *Prefs // preferences were changed
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NetMap *NetworkMap // new netmap received
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Engine *EngineStatus // wireguard engine stats
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Status *ipnstate.Status // full status
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BrowseToURL *string // UI should open a browser right now
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BackendLogID *string // public logtail id used by backend
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// type is mirrored in xcode/Shared/IPN.swift
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}
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@@ -126,6 +128,9 @@ type Backend interface {
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// counts. Connection events are emitted automatically without
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// polling.
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RequestEngineStatus()
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// RequestStatus requests that a full Status update
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// notification is sent.
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RequestStatus()
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// FakeExpireAfter pretends that the current key is going to
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// expire after duration x. This is useful for testing GUIs to
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// make sure they react properly with keys that are going to
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@@ -7,6 +7,8 @@ package ipn
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import (
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"log"
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"time"
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"tailscale.com/ipn/ipnstate"
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)
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type FakeBackend struct {
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@@ -71,6 +73,10 @@ func (b *FakeBackend) RequestEngineStatus() {
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b.notify(Notify{Engine: &EngineStatus{}})
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}
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func (b *FakeBackend) RequestStatus() {
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b.notify(Notify{Status: &ipnstate.Status{}})
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}
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func (b *FakeBackend) FakeExpireAfter(x time.Duration) {
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b.notify(Notify{NetMap: &NetworkMap{}})
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}
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@@ -161,6 +161,10 @@ func (h *Handle) RequestEngineStatus() {
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h.b.RequestEngineStatus()
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}
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func (h *Handle) RequestStatus() {
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h.b.RequestStatus()
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}
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func (h *Handle) FakeExpireAfter(x time.Duration) {
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h.b.FakeExpireAfter(x)
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}
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+4
-100
@@ -8,7 +8,6 @@ import (
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"bufio"
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"context"
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"fmt"
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"html"
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"log"
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"net"
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"net/http"
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@@ -120,7 +119,10 @@ func Run(rctx context.Context, logf logger.Logf, logid string, opts Options, e w
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if opts.DebugMux != nil {
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opts.DebugMux.HandleFunc("/debug/ipn", func(w http.ResponseWriter, r *http.Request) {
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serveDebugHandler(w, r, logid, opts, b, e)
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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st := b.Status()
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// TODO(bradfitz): add LogID and opts to st?
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st.WriteHTML(w)
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})
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}
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@@ -311,101 +313,3 @@ func BabysitProc(ctx context.Context, args []string, logf logger.Logf) {
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}
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}
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}
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func serveDebugHandler(w http.ResponseWriter, r *http.Request, logid string, opts Options, b *ipn.LocalBackend, e wgengine.Engine) {
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f := func(format string, args ...interface{}) { fmt.Fprintf(w, format, args...) }
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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f(`<html><head><style>
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.owner { font-size: 80%%; color: #444; }
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.tailaddr { font-size: 80%%; font-family: monospace: }
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</style></head>`)
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f("<body><h1>IPN state</h1><h2>Run args</h2>")
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f("<p><b>logid:</b> %s</p>\n", logid)
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f("<p><b>opts:</b> <code>%s</code></p>\n", html.EscapeString(fmt.Sprintf("%+v", opts)))
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st := b.Status()
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f("<table border=1 cellpadding=5><tr><th>Peer</th><th>Node</th><th>Rx</th><th>Tx</th><th>Handshake</th><th>Endpoints</th></tr>")
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now := time.Now()
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// The tailcontrol server rounds LastSeen to 10 minutes. So we
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// declare that a longAgo seen time of 15 minutes means
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// they're not connected.
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longAgo := now.Add(-15 * time.Minute)
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for _, peer := range st.Peers() {
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ps := st.Peer[peer]
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var hsAgo string
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if !ps.LastHandshake.IsZero() {
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hsAgo = now.Sub(ps.LastHandshake).Round(time.Second).String() + " ago"
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} else {
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if ps.LastSeen.Before(longAgo) {
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hsAgo = "<i>offline</i>"
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} else if !ps.KeepAlive {
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hsAgo = "on demand"
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} else {
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hsAgo = "<b>pending</b>"
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}
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}
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var owner string
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if up, ok := st.User[ps.UserID]; ok {
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owner = up.LoginName
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if i := strings.Index(owner, "@"); i != -1 {
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owner = owner[:i]
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}
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}
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f("<tr><td>%s</td><td>%s<div class=owner>%s</div><div class=tailaddr>%s</div></td><td>%v</td><td>%v</td><td>%v</td>",
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peer.ShortString(),
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osEmoji(ps.OS)+" "+html.EscapeString(simplifyHostname(ps.HostName)),
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html.EscapeString(owner),
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ps.TailAddr,
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ps.RxBytes,
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ps.TxBytes,
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hsAgo,
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)
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f("<td>")
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match := false
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for _, addr := range ps.Addrs {
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if addr == ps.CurAddr {
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match = true
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f("<b>%s</b> 🔗<br>\n", addr)
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} else {
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f("%s<br>\n", addr)
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}
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}
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if ps.CurAddr != "" && !match {
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f("<b>%s</b> \xf0\x9f\xa7\xb3<br>\n", ps.CurAddr)
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}
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f("</tr>") // end Addrs
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f("</tr>\n")
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}
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f("</table>")
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}
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func osEmoji(os string) string {
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switch os {
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case "linux":
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return "🐧"
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case "macOS":
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return "🍎"
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case "windows":
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return "🖥️"
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case "iOS":
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return "📱"
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case "android":
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return "🤖"
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case "freebsd":
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return "👿"
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case "openbsd":
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return "🐡"
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}
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return "👽"
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}
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func simplifyHostname(s string) string {
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s = strings.TrimSuffix(s, ".local")
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s = strings.TrimSuffix(s, ".localdomain")
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return s
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}
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@@ -9,8 +9,12 @@ package ipnstate
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import (
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"bytes"
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"fmt"
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"html"
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"io"
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"log"
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"sort"
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"strings"
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"sync"
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"time"
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@@ -66,6 +70,14 @@ type PeerStatus struct {
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InEngine bool
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}
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// SimpleHostName returns a potentially simplified version of ps.HostName for display purposes.
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func (ps *PeerStatus) SimpleHostName() string {
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n := ps.HostName
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n = strings.TrimSuffix(n, ".local")
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n = strings.TrimSuffix(n, ".localdomain")
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return n
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}
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type StatusBuilder struct {
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mu sync.Mutex
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locked bool
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@@ -170,3 +182,93 @@ func (sb *StatusBuilder) AddPeer(peer key.Public, st *PeerStatus) {
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type StatusUpdater interface {
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UpdateStatus(*StatusBuilder)
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}
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func (st *Status) WriteHTML(w io.Writer) {
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f := func(format string, args ...interface{}) { fmt.Fprintf(w, format, args...) }
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f(`<html><head><style>
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.owner { font-size: 80%%; color: #444; }
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.tailaddr { font-size: 80%%; font-family: monospace: }
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</style></head>`)
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f("<body><h1>Tailscale State</h1>")
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//f("<p><b>logid:</b> %s</p>\n", logid)
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//f("<p><b>opts:</b> <code>%s</code></p>\n", html.EscapeString(fmt.Sprintf("%+v", opts)))
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f("<table border=1 cellpadding=5><tr><th>Peer</th><th>Node</th><th>Rx</th><th>Tx</th><th>Handshake</th><th>Endpoints</th></tr>")
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now := time.Now()
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// The tailcontrol server rounds LastSeen to 10 minutes. So we
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// declare that a longAgo seen time of 15 minutes means
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// they're not connected.
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longAgo := now.Add(-15 * time.Minute)
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for _, peer := range st.Peers() {
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ps := st.Peer[peer]
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var hsAgo string
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if !ps.LastHandshake.IsZero() {
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hsAgo = now.Sub(ps.LastHandshake).Round(time.Second).String() + " ago"
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} else {
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if ps.LastSeen.Before(longAgo) {
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hsAgo = "<i>offline</i>"
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} else if !ps.KeepAlive {
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hsAgo = "on demand"
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} else {
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hsAgo = "<b>pending</b>"
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}
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}
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var owner string
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if up, ok := st.User[ps.UserID]; ok {
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owner = up.LoginName
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if i := strings.Index(owner, "@"); i != -1 {
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owner = owner[:i]
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}
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}
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f("<tr><td>%s</td><td>%s<div class=owner>%s</div><div class=tailaddr>%s</div></td><td>%v</td><td>%v</td><td>%v</td>",
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peer.ShortString(),
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osEmoji(ps.OS)+" "+html.EscapeString(ps.SimpleHostName()),
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html.EscapeString(owner),
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ps.TailAddr,
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ps.RxBytes,
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ps.TxBytes,
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hsAgo,
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)
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f("<td>")
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match := false
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for _, addr := range ps.Addrs {
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if addr == ps.CurAddr {
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match = true
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f("<b>%s</b> 🔗<br>\n", addr)
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} else {
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f("%s<br>\n", addr)
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}
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}
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if ps.CurAddr != "" && !match {
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f("<b>%s</b> \xf0\x9f\xa7\xb3<br>\n", ps.CurAddr)
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}
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f("</tr>") // end Addrs
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f("</tr>\n")
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}
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f("</table>")
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}
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func osEmoji(os string) string {
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switch os {
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case "linux":
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return "🐧"
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case "macOS":
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return "🍎"
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case "windows":
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return "🖥️"
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case "iOS":
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return "📱"
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case "android":
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return "🤖"
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case "freebsd":
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return "👿"
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case "openbsd":
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return "🐡"
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}
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return "👽"
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}
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@@ -499,6 +499,7 @@ func (b *LocalBackend) loadStateLocked(key StateKey, prefs *Prefs, legacyPath st
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return nil
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}
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// State returns the backend's state.
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func (b *LocalBackend) State() State {
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b.mu.Lock()
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defer b.mu.Unlock()
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@@ -506,6 +507,11 @@ func (b *LocalBackend) State() State {
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return b.state
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}
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// EngineStatus returns the engine status. See also: Status, and State.
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//
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// TODO(bradfitz): deprecated this and merge it with the Status method
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// that returns ipnstate.Status? Maybe have that take flags for what info
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// the caller cares about?
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func (b *LocalBackend) EngineStatus() EngineStatus {
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b.mu.Lock()
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defer b.mu.Unlock()
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@@ -785,6 +791,11 @@ func (b *LocalBackend) RequestEngineStatus() {
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b.e.RequestStatus()
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}
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func (b *LocalBackend) RequestStatus() {
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st := b.Status()
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b.notify(Notify{Status: st})
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}
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// TODO(apenwarr): use a channel or something to prevent re-entrancy?
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// Or maybe just call the state machine from fewer places.
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func (b *LocalBackend) stateMachine() {
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@@ -43,6 +43,7 @@ type Command struct {
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Logout *NoArgs
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SetPrefs *SetPrefsArgs
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RequestEngineStatus *NoArgs
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RequestStatus *NoArgs
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FakeExpireAfter *FakeExpireAfterArgs
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}
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@@ -115,6 +116,9 @@ func (bs *BackendServer) GotCommand(cmd *Command) error {
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} else if c := cmd.RequestEngineStatus; c != nil {
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bs.b.RequestEngineStatus()
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return nil
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} else if c := cmd.RequestStatus; c != nil {
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bs.b.RequestStatus()
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return nil
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} else if c := cmd.FakeExpireAfter; c != nil {
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bs.b.FakeExpireAfter(c.Duration)
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return nil
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@@ -172,6 +176,10 @@ func (bc *BackendClient) send(cmd Command) {
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bc.sendCommandMsg(b)
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}
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func (bc *BackendClient) SetNotifyCallback(fn func(Notify)) {
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bc.notify = fn
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}
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func (bc *BackendClient) Quit() error {
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bc.send(Command{Quit: &NoArgs{}})
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return nil
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@@ -200,6 +208,10 @@ func (bc *BackendClient) RequestEngineStatus() {
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bc.send(Command{RequestEngineStatus: &NoArgs{}})
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}
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func (bc *BackendClient) RequestStatus() {
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bc.send(Command{RequestStatus: &NoArgs{}})
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}
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func (bc *BackendClient) FakeExpireAfter(x time.Duration) {
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bc.send(Command{FakeExpireAfter: &FakeExpireAfterArgs{Duration: x}})
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}
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Reference in New Issue
Block a user