bunker: repeat connection info every now and then.

bunker.go

@@ -1,12 +1,15 @@
 package main
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"net/url"
 	"os"
+	"sync"
+	"time"
 
-	"github.com/manifoldco/promptui"
+	"github.com/fatih/color"
 	"github.com/nbd-wtf/go-nostr"
 	"github.com/nbd-wtf/go-nostr/nip19"
 	"github.com/nbd-wtf/go-nostr/nip46"
@@ -65,13 +68,18 @@ var bunker = &cli.Command{
 			return err
 		}
 		npub, _ := nip19.EncodePublicKey(pubkey)
-		log("listening at %s%v%s:\n  %spubkey:%s %s\n  %snpub:%s %s\n  %sconnection code:%s %s\n  %sbunker:%s %s\n\n",
+		bunkerURI := fmt.Sprintf("bunker://%s?%s", pubkey, qs.Encode())
-			BOLD_ON, relayURLs, BOLD_OFF,
+		bold := color.New(color.Bold).Sprint
-			BOLD_ON, BOLD_OFF, pubkey,
+
-			BOLD_ON, BOLD_OFF, npub,
+		printBunkerInfo := func() {
-			BOLD_ON, BOLD_OFF, fmt.Sprintf("%s#secret?%s", npub, qs.Encode()),
+			log("listening at %v:\n  pubkey: %s \n  npub: %s\n  bunker: %s\n\n",
-			BOLD_ON, BOLD_OFF, fmt.Sprintf("bunker://%s?%s", pubkey, qs.Encode()),
+				bold(relayURLs),
-		)
+				bold(pubkey),
+				bold(npub),
+				bold(bunkerURI),
+			)
+		}
+		printBunkerInfo()
 
 		alwaysYes := c.Bool("yes")
 
@@ -85,25 +93,63 @@ var bunker = &cli.Command{
 		})
 
 		signer := nip46.NewStaticKeySigner(sec)
+		handlerWg := sync.WaitGroup{}
+		printLock := sync.Mutex{}
+
+		// just a gimmick
+		var cancelPreviousBunkerInfoPrint context.CancelFunc
+		_, cancel := context.WithCancel(c.Context)
+		cancelPreviousBunkerInfoPrint = cancel
+
 		for ie := range events {
+			cancelPreviousBunkerInfoPrint() // this prevents us from printing a million bunker info blocks
+
+			// handle the NIP-46 request event
 			req, resp, eventResponse, harmless, err := signer.HandleRequest(ie.Event)
 			if err != nil {
-				log("< failed to handle request from %s: %s", ie.Event.PubKey, err.Error())
+				log("< failed to handle request from %s: %s\n", ie.Event.PubKey, err.Error())
 				continue
 			}
 
 			jreq, _ := json.MarshalIndent(req, "  ", "  ")
-			log("- got request from '%s': %s\n", ie.Event.PubKey, string(jreq))
+			log("- got request from '%s': %s\n", color.New(color.Bold, color.FgBlue).Sprint(ie.Event.PubKey), string(jreq))
 			jresp, _ := json.MarshalIndent(resp, "  ", "  ")
 			log("~ responding with %s\n", string(jresp))
 
 			if alwaysYes || harmless || askProceed(ie.Event.PubKey) {
-				if err := ie.Relay.Publish(c.Context, eventResponse); err == nil {
+				handlerWg.Add(len(relayURLs))
-					log("* sent response!\n")
+				for _, relayURL := range relayURLs {
-				} else {
+					go func(relayURL string) {
-					log("* failed to send response: %s\n", err)
+						if relay, _ := pool.EnsureRelay(relayURL); relay != nil {
+							err := relay.Publish(c.Context, eventResponse)
+							printLock.Lock()
+							if err == nil {
+								log("* sent response through %s\n", relay.URL)
+							} else {
+								log("* failed to send response: %s\n", err)
+							}
+							printLock.Unlock()
+							handlerWg.Done()
+						}
+					}(relayURL)
 				}
+				handlerWg.Wait()
 			}
+
+			// just after handling one request we trigger this
+			go func() {
+				ctx, cancel := context.WithCancel(c.Context)
+				defer cancel()
+				cancelPreviousBunkerInfoPrint = cancel
+				// the idea is that we will print the bunker URL again so it is easier to copy-paste by users
+				// but we will only do if the bunker is inactive for more than 5 minutes
+				select {
+				case <-ctx.Done():
+				case <-time.After(time.Minute * 5):
+					fmt.Fprintf(os.Stderr, "\n")
+					printBunkerInfo()
+				}
+			}()
 		}
 
 		return nil
@@ -117,21 +163,23 @@ func askProceed(source string) bool {
 		return true
 	}
 
-	prompt := promptui.Select{
+	fmt.Fprintf(os.Stderr, "request from %s:\n", color.New(color.Bold, color.FgBlue).Sprint(source))
-		Label: "proceed?",
+	res, err := ask("  proceed to fulfill this request? (yes/no/always from this) (y/n/a): ", "",
-		Items: []string{
+		func(answer string) bool {
-			"no",
+			if answer != "y" && answer != "n" && answer != "a" {
-			"yes",
+				return true
-			"always from this source",
+			}
-		},
+			return false
-	}
+		})
-	n, _, _ := prompt.Run()
+	if err != nil {
-	switch n {
-	case 0:
 		return false
-	case 1:
+	}
+	switch res {
+	case "n":
+		return false
+	case "y":
 		return true
-	case 2:
+	case "a":
 		allowedSources = append(allowedSources, source)
 		return true
 	}

event.go

@@ -48,6 +48,11 @@ example:
 			Name:  "connect",
 			Usage: "sign event using NIP-46, expects a bunker://... URL",
 		},
+		&cli.StringFlag{
+			Name:        "connect-as",
+			Usage:       "private key to when communicating with the bunker given on --connect",
+			DefaultText: "a random key",
+		},
 		&cli.BoolFlag{
 			Name:  "envelope",
 			Usage: "print the event enveloped in a [\"EVENT\", ...] message ready to be sent to a relay",

go.mod

@@ -8,8 +8,7 @@ require (
 	github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
 	github.com/fatih/color v1.16.0
 	github.com/mailru/easyjson v0.7.7
-	github.com/manifoldco/promptui v0.9.0
+	github.com/nbd-wtf/go-nostr v0.28.6
-	github.com/nbd-wtf/go-nostr v0.28.4
 	github.com/nbd-wtf/nostr-sdk v0.0.5
 	github.com/urfave/cli/v2 v2.25.7
 	golang.org/x/exp v0.0.0-20231006140011-7918f672742d
@@ -19,6 +18,8 @@ require (
 	github.com/btcsuite/btcd/btcec/v2 v2.3.2 // indirect
 	github.com/btcsuite/btcd/btcutil v1.1.3 // indirect
 	github.com/btcsuite/btcd/chaincfg/chainhash v1.0.2 // indirect
+	github.com/chzyer/logex v1.1.10 // indirect
+	github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/decred/dcrd/crypto/blake256 v1.0.1 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect

go.sum

@@ -74,15 +74,13 @@ github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlT
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
-github.com/manifoldco/promptui v0.9.0 h1:3V4HzJk1TtXW1MTZMP7mdlwbBpIinw3HztaIlYthEiA=
-github.com/manifoldco/promptui v0.9.0/go.mod h1:ka04sppxSGFAtxX0qhlYQjISsg9mR4GWtQEhdbn6Pgg=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/nbd-wtf/go-nostr v0.28.4 h1:chGBpdCQvM9aInf/vVDishY8GHapgqFc/RLl2WDnHQM=
+github.com/nbd-wtf/go-nostr v0.28.6 h1:iOyzk+6ReG0lvyRAar7w7omFmUk5mnXDyFYkJ+zEjiw=
-github.com/nbd-wtf/go-nostr v0.28.4/go.mod h1:l9NRRaHPN+QwkqrjNKhnfYjQ0+nKP1xZrVxePPGUs+A=
+github.com/nbd-wtf/go-nostr v0.28.6/go.mod h1:aFcp8NO3erHg+glzBfh4wpaMrV1/ahcUPAgITdptxwA=
 github.com/nbd-wtf/nostr-sdk v0.0.5 h1:rec+FcDizDVO0W25PX0lgYMXvP7zNNOgI3Fu9UCm4BY=
 github.com/nbd-wtf/nostr-sdk v0.0.5/go.mod h1:iJJsikesCGLNFZ9dLqhLPDzdt924EagUmdQxT3w2Lmk=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
@@ -129,7 +127,6 @@ golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
 golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

helpers.go

@@ -20,9 +20,6 @@ import (
 
 const (
 	LINE_PROCESSING_ERROR = iota
-
-	BOLD_ON  = "\033[1m"
-	BOLD_OFF = "\033[21m"
 )
 
 var log = func(msg string, args ...any) {
@@ -69,8 +66,13 @@ func writeStdinLinesOrNothing(ch chan string) (hasStdinLines bool) {
 		go func() {
 			scanner := bufio.NewScanner(os.Stdin)
 			scanner.Buffer(make([]byte, 16*1024), 256*1024)
+			hasEmittedAtLeastOne := false
 			for scanner.Scan() {
 				ch <- strings.TrimSpace(scanner.Text())
+				hasEmittedAtLeastOne = true
+			}
+			if !hasEmittedAtLeastOne {
+				ch <- ""
 			}
 			close(ch)
 		}()
@@ -134,7 +136,12 @@ func gatherSecretKeyOrBunkerFromArguments(c *cli.Context) (string, *nip46.Bunker
 	var err error
 
 	if bunkerURL := c.String("connect"); bunkerURL != "" {
-		clientKey := nostr.GeneratePrivateKey()
+		clientKey := c.String("connect-as")
+		if clientKey != "" {
+			clientKey = strings.Repeat("0", 64-len(clientKey)) + clientKey
+		} else {
+			clientKey = nostr.GeneratePrivateKey()
+		}
 		bunker, err := nip46.ConnectBunker(c.Context, clientKey, bunkerURL, nil)
 		return "", bunker, err
 	}

req.go

@@ -117,6 +117,11 @@ example:
 			Name:  "connect",
 			Usage: "sign AUTH using NIP-46, expects a bunker://... URL",
 		},
+		&cli.StringFlag{
+			Name:        "connect-as",
+			Usage:       "private key to when communicating with the bunker given on --connect",
+			DefaultText: "a random key",
+		},
 	},
 	ArgsUsage: "[relay...]",
 	Action: func(c *cli.Context) error {

verify.go

@@ -15,7 +15,7 @@ var verify = &cli.Command{
 
 it outputs nothing if the verification is successful.`,
 	Action: func(c *cli.Context) error {
-		for stdinEvent := range getStdinLinesOrBlank() {
+		for stdinEvent := range getStdinLinesOrFirstArgument(c.Args().First()) {
 			evt := nostr.Event{}
 			if stdinEvent != "" {
 				if err := json.Unmarshal([]byte(stdinEvent), &evt); err != nil {