nak verify

.github/workflows/publish.yml

@@ -1,20 +0,0 @@
-name: build page and publish to cloudflare
-on:
-  push:
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 1
-    - uses: olafurpg/setup-scala@v11
-    - name: build page / compile scalajs
-      run: sbt fullLinkJS/esBuild
-    - name: publish to cloudflare
-      uses: cloudflare/pages-action@v1
-      with:
-        apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
-        accountId: 60325047cc7d0811c6b337717918cbc1
-        projectName: nostr-army-knife
-        directory: .

.github/workflows/release-cli.yml

@@ -0,0 +1,42 @@
+name: build cli for all platforms
+
+on:
+  push:
+    tags:
+      - '*'
+
+permissions:
+  contents: write
+
+jobs:
+  make-release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/create-release@latest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+  build-all-for-all:
+    runs-on: ubuntu-latest
+    needs:
+      - make-release
+    strategy:
+      matrix:
+        goos: [linux, freebsd, darwin, windows]
+        goarch: [amd64, arm64]
+        exclude:
+          - goarch: arm64
+            goos: windows
+    steps:
+      - uses: actions/checkout@v3
+      - uses: wangyoucao577/go-release-action@v1.40
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          goos: ${{ matrix.goos }}
+          goarch: ${{ matrix.goarch }}
+          overwrite: true
+          md5sum: false
+          sha256sum: false
+          compress_assets: false

README.md

@@ -1,225 +1,78 @@
-# nostr army knife
+# nak, the nostr army knife
 
-this repository contains two things:
+install with `go install github.com/fiatjaf/nak@latest` or
+[download a binary](https://github.com/fiatjaf/nak/releases).
 
-## a command-line tool for decoding and encoding nostr entities and talking to relays
+## what can you do with it?
 
-Install with `go install github.com/fiatjaf/nak`.
+take a look at the help text that comes in it to learn all possibilities, but here are some:
 
-It pairs nicely with https://github.com/blakejakopovic/nostcat using unix pipes.
-
-### examples
+### make a nostr event signed with the default key (`01`)
 
+```shell
+~> nak event
+{"id":"53443506e7d09e55b922a2369b80f926007a8a8a8ea5f09df1db59fe1993335e","pubkey":"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","created_at":1698632644,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"4bdb609c975b2b61338c2ff4c7ce91d4afe74bea4ed1601a62e1fd125bd4c0ae6e0166cca96e5cfb7e0f50583eb6a0dd0b66072566299b6007742db56278010c"}
 ```
-~> nak decode nsec1aqc5q5l8da0l7u6gra4p5xhleclngezlpsgd7z5dx07cpu8sxf2shqgn6y
-{
-  "pubkey": "5b36b874b2b983197ba4be80553b2e4b6db2895a04567cea0aa47585b2e0c620",
-  "private_key": "e8314053e76f5fff73481f6a1a1affce3f34645f0c10df0a8d33fd80f0f03255"
-}
 
-~> nak event -c hello --sec e8314053e76f5fff73481f6a1a1affce3f34645f0c10df0a8d33fd80f0f03255
-{"id":"ed840ef37a40cce4f4b8c361e5df13457ad664209cf4a297fd7df7e84fdd32e0","pubkey":"5b36b874b2b983197ba4be80553b2e4b6db2895a04567cea0aa47585b2e0c620","created_at":1683201092,"kind":1,"tags":[],"content":"hello","sig":"304a87dbbdf986a187eb9417316cfe3d6f8f31793ba20c9c6d7e4ebeeefe950d6ecba6098c201b7170c04e27c2f920d607a90f5c8763c35ac806dce37df1d05d"}
-~> nak event -c hello --sec e8314053e76f5fff73481f6a1a1affce3f34645f0c10df0a8d33fd80f0f03255 wss://relay.stoner.com wss://nos.lol wss://nostr.wine wss://atlas.nostr.land wss://relay.damus.io
-{"id":"54a534647bdcd2751d743fea4fc9eee5dba613887d69425f0891d9c2f82772a5","pubkey":"5b36b874b2b983197ba4be80553b2e4b6db2895a04567cea0aa47585b2e0c620","created_at":1684895417,"kind":1,"tags":[],"content":"hello","sig":"81a14cfe628fab6cd6135bb66f6e8b3bb4bfce4f666462a1303fdfbc9038fd141e73db3fe7e774a8f023fc70622c50a67d4fa41d3d09806c78f051985c11e0bd"}
-publishing to wss://relay.stoner.com... failed: msg: blocked: pubkey is not allowed to publish to this relay
-publishing to wss://nos.lol... success.
-publishing to wss://nostr.wine... failed: msg: blocked: not an active paid member
-publishing to wss://atlas.nostr.land... failed: msg: blocked: pubkey not admitted
+### make a nostr event with custom content and tags, sign it with a different key and publish it to two relays
+```shell
+~> nak event --sec 02 -c 'good morning' --tag t=gm wss://nostr-pub.wellorder.net wss://relay.damus.io
+{"id":"e20978737ab7cd36eca300a65f11738176123f2e0c23054544b18fe493e2aa1a","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698632753,"kind":1,"tags":[["t","gm"]],"content":"good morning","sig":"5687c1a97066c349cb3bde0c0719fd1652a13403ba6aca7557b646307ee6718528cd86989db08bf6a7fd04bea0b0b87c1dd1b78c2d21b80b80eebab7f40b8916"}
+publishing to wss://nostr-pub.wellorder.net... success.
 publishing to wss://relay.damus.io... success.
+```
 
-~> nak decode nevent1qqs29yet5tp0qq5xu5qgkeehkzqh5qu46739axzezcxpj4tjlkx9j7gpr4mhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet5sh59ud
+### query a bunch of relays for a tag with a limit of 2 for each, print their content
+```shell
+~> nak req -k 1 -t t=gm -l 2 wss://nostr.mom wss://nostr.wine wss://nostr-pub.wellorder.net | jq .content
+"#GM, you sovereign savage #freeple of the #nostrverse. Let's cause some #nostroversy. "
+"ITM slaves!\n#gm https://image.nostr.build/cbbcdf80bfc302a6678ecf9387c87d87deca3e0e288a12e262926c34feb3f6aa.jpg "
+"good morning"
+"The problem is to start, but along the way it's fixed #GM ☀️"
+"Activando modo zen…\n\n#GM #Nostr #Hispano"
+```
+
+### decode a nip19 note1 code, add a relay hint, encode it back to nevent1
+```shell
+~> nak decode note1ttnnrw78wy0hs5fa59yj03yvcu2r4y0xetg9vh7uf4em39n604vsyp37f2 | jq -r .id | nak encode nevent -r wss://nostr.zbd.gg
+nevent1qqs94ee3h0rhz8mc2y76zjf8cjxvw9p6j8nv45zktlwy6uacjea86kgpzfmhxue69uhkummnw3ezu7nzvshxwec8zw8h7
+~> nak decode nevent1qqs94ee3h0rhz8mc2y76zjf8cjxvw9p6j8nv45zktlwy6uacjea86kgpzfmhxue69uhkummnw3ezu7nzvshxwec8zw8h7
 {
-  "id": "a2932ba2c2f00286e5008b6737b0817a0395d7a25e9859160c195572fd8c5979",
+  "id": "5ae731bbc7711f78513da14927c48cc7143a91e6cad0565fdc4d73b8967a7d59",
   "relays": [
-    "wss://nostr-pub.wellorder.net"
+    "wss://nostr.zbd.gg"
   ]
 }
-
-~> nak req -a a2932ba2c2f00286e5008b6737b0817a0395d7a25e9859160c195572fd8c5979 -k 1 -a e8b487c079b0f67c695ae6c4c2552a47f38adfa2533cc5926bd2c102942fdcb7
-["REQ","nak",{"kinds":[1],"authors":["a2932ba2c2f00286e5008b6737b0817a0395d7a25e9859160c195572fd8c5979","e8b487c079b0f67c695ae6c4c2552a47f38adfa2533cc5926bd2c102942fdcb7"]}]
-
-~> nak req -k 1 -l 1 --stream wss://relay.stoner.com
-{"id":"1d73832917bf5a72276c53e9246c28b97225b51cd5735843434f7756fc0ddead","pubkey":"3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d","created_at":1684894689,"kind":1,"tags":[["p","bcbeb5a2e6b547f6d0c3d8c16145f7bb94f3639ec7ecbcfe50045dbb2eede70b","wss://nos.lol","artk42"],["e","b5af6815c8d89a7d5b6201b9e624fbd5389fca3337ba2dc05c6187234a7c1bd5","wss://nos.lol","root"],["e","5795e27aff0a459a30c64a61a32c43d968cd19c8f1926cf01fc02e9da7c56f2b","wss://nos.lol","reply"],["client","coracle"]],"content":"Because that makes no sense.","sig":"3ee5b2b26ec6b116ef1a6b1c10bc7e56674a3c36841814f68b57f63259f3d78e23629d4599afe67e72c220e27b4b0966cc51adc1da808c8c6111dedb531ac0c3"}
 ```
 
-### documentation
-
-```
-~> nak --help
-NAME:
-   nak - the nostr army knife command-line tool
-
-USAGE:
-   nak [global options] command [command options] [arguments...]
-
-COMMANDS:
-   req      generates encoded REQ messages and optionally use them to talk to relays
-   count    generates encoded COUNT messages and optionally use them to talk to relays
-   event    generates an encoded event and either prints it or sends it to a set of relays
-   decode   decodes nip19, nip21, nip05 or hex entities
-   encode   encodes notes and other stuff to nip19 entities
-   help, h  Shows a list of commands or help for one command
-
-GLOBAL OPTIONS:
-   --help, -h  show help
-
-~> nak event --help
-NAME:
-   nak event - generates an encoded event and either prints it or sends it to a set of relays
-
-USAGE:
-   nak event [command options] [arguments...]
-
-DESCRIPTION:
-   example usage (for sending directly to a relay with 'nostcat'):
-       nak event -k 1 -c hello --envelope | nostcat wss://nos.lol
-   standalone:
-       nak event -k 1 -c hello wss://nos.lol`,
-
-OPTIONS:
-   --envelope   print the event enveloped in a ["EVENT", ...] message ready to be sent to a relay (default: false)
-   --sec value  secret key to sign the event (default: the key '1')
-
-   EVENT FIELDS
-
-   --content value, -c value                        event content (default: hello from the nostr army knife)
-   --created-at value, --time value, --ts value     unix timestamp value for the created_at field (default: now)
-   --kind value, -k value                           event kind (default: 1)
-   --tag value, -t value [ --tag value, -t value ]  sets a tag field on the event, takes a value like -t e=<id>
-   -e value [ -e value ]                            shortcut for --tag e=<value>
-   -p value [ -p value ]                            shortcut for --tag p=<value>
-
-~> nak req --help
-NAME:
-   nak req - generates encoded REQ messages and optionally use them to talk to relays
-
-USAGE:
-   nak req [command options] [relay...]
-
-DESCRIPTION:
-   outputs a NIP-01 Nostr filter. when a relay is not given, will print the filter, otherwise will connect to the given relay and send the filter.
-
-   example usage (with 'nostcat'):
-       nak req -k 1 -a 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d | nostcat wss://nos.lol
-   standalone:
-       nak req -k 1 wss://nos.lol
-
-OPTIONS:
-   --bare    when printing the filter, print just the filter, not enveloped in a ["REQ", ...] array (default: false)
-   --stream  keep the subscription open, printing all events as they are returned (default: false, will close on EOSE)
-
-   FILTER ATTRIBUTES
-
-   --author value, -a value [ --author value, -a value ]  only accept events from these authors (pubkey as hex)
-   --id value, -i value [ --id value, -i value ]          only accept events with these ids (hex)
-   --kind value, -k value [ --kind value, -k value ]      only accept events with these kind numbers
-   --limit value, -l value                                only accept up to this number of events (default: 0)
-   --since value, -s value                                only accept events newer than this (unix timestamp) (default: 0)
-   --tag value, -t value [ --tag value, -t value ]        takes a tag like -t e=<id>, only accept events with these tags
-   --until value, -u value                                only accept events older than this (unix timestamp) (default: 0)
-   -e value [ -e value ]                                  shortcut for --tag e=<value>
-   -p value [ -p value ]                                  shortcut for --tag p=<value>
-
-
-OPTIONS:
-   --bare    when printing the filter, print just the filter, not enveloped in a ["REQ", ...] array (default: false)
-   --stream  keep the subscription open, printing all events as they are returned (default: false, will close on EOSE)
-
-   FILTER ATTRIBUTES
-
-   --author value, -a value [ --author value, -a value ]  only accept events from these authors (pubkey as hex)
-   --id value, -i value [ --id value, -i value ]          only accept events with these ids (hex)
-   --kind value, -k value [ --kind value, -k value ]      only accept events with these kind numbers
-   --limit value, -l value                                only accept up to this number of events (default: 0)
-   --since value, -s value                                only accept events newer than this (unix timestamp) (default: 0)
-   --tag value, -t value [ --tag value, -t value ]        takes a tag like -t e=<id>, only accept events with these tags
-   --until value, -u value                                only accept events older than this (unix timestamp) (default: 0)
-   -e value [ -e value ]                                  shortcut for --tag e=<value>
-   -p value [ -p value ]                                  shortcut for --tag p=<value>
-
-~> nak count --help
-NAME:
-   nak count - generates encoded COUNT messages and optionally use them to talk to relays
-
-USAGE:
-   nak count [command options] [relay...]
-
-DESCRIPTION:
-   outputs a NIP-45 request. Mostly same as req.
-
-   example usage (with 'nostcat'):
-       nak count -k 1 -a 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d | nostcat wss://nos.lol
-   standalone:
-       nak count -k 1 wss://nos.lol
-
-OPTIONS:
-   --bare    when printing the filter, print just the filter, not enveloped in a ["COUNT", ...] array (default: false)
-   --stream  keep the subscription open, printing all events as they are returned (default: false, will close on EOSE)
-
-   FILTER ATTRIBUTES
-
-   --author value, -a value [ --author value, -a value ]  only accept events from these authors (pubkey as hex)
-   --id value, -i value [ --id value, -i value ]          only accept events with these ids (hex)
-   --kind value, -k value [ --kind value, -k value ]      only accept events with these kind numbers
-   --limit value, -l value                                only accept up to this number of events (default: 0)
-   --since value, -s value                                only accept events newer than this (unix timestamp) (default: 0)
-   --tag value, -t value [ --tag value, -t value ]        takes a tag like -t e=<id>, only accept events with these tags
-   --until value, -u value                                only accept events older than this (unix timestamp) (default: 0)
-   -e value [ -e value ]                                  shortcut for --tag e=<value>
-   -p value [ -p value ]                                  shortcut for --tag p=<value>
-
-~> nak decode --help
-NAME:
-   nak decode - decodes nip19, nip21, nip05 or hex entities
-
-USAGE:
-   nak decode [command options] <npub | nprofile | nip05 | nevent | naddr | nsec>
-
-DESCRIPTION:
-   example usage:
-       nak decode npub1uescmd5krhrmj9rcura833xpke5eqzvcz5nxjw74ufeewf2sscxq4g7chm
-       nak decode nevent1qqs29yet5tp0qq5xu5qgkeehkzqh5qu46739axzezcxpj4tjlkx9j7gpr4mhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet5sh59ud
-       nak decode nprofile1qqsrhuxx8l9ex335q7he0f09aej04zpazpl0ne2cgukyawd24mayt8gpz4mhxue69uhk2er9dchxummnw3ezumrpdejqz8thwden5te0dehhxarj94c82c3wwajkcmr0wfjx2u3wdejhgqgcwaehxw309aex2mrp0yhxummnw3exzarf9e3k7mgnp0sh5
-       nak decode nsec1jrmyhtjhgd9yqalps8hf9mayvd58852gtz66m7tqpacjedkp6kxq4dyxsr
-
-OPTIONS:
-   --id, -e      return just the event id, if applicable (default: false)
-   --pubkey, -p  return just the pubkey, if applicable (default: false)
-   --help, -h    show help
-
-
-~> nak encode --help
-NAME:
-   nak encode - encodes notes and other stuff to nip19 entities
-
-USAGE:
-   nak encode command [command options] [arguments...]
-
-DESCRIPTION:
-   example usage:
-       nak encode npub <pubkey-hex>
-       nak encode nprofile <pubkey-hex>
-       nak encode nprofile --relay <relay-url> <pubkey-hex>
-       nak encode nevent <event-id>
-       nak encode nevent --author <pubkey-hex> --relay <relay-url> --relay <other-relay> <event-id>
-       nak encode nsec <privkey-hex>
-
-COMMANDS:
-   npub      encode a hex private key into bech32 'npub' format
-   nsec      encode a hex private key into bech32 'nsec' format
-   nprofile  generate profile codes with attached relay information
-   nevent    generate event codes with optionally attached relay information
-   naddr     generate codes for NIP-33 parameterized replaceable events
-   help, h   Shows a list of commands or help for one command
-
-OPTIONS:
-   --help, -h  show help
+### fetch an event using relay and author hints automatically from a nevent1 code, pretty-print it
+```shell
+nak fetch nevent1qqs2e3k48vtrkzjm8vvyzcmsmkf58unrxtq2k4h5yspay6vhcqm4wqcpz9mhxue69uhkummnw3ezuamfdejj7q3ql2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqxpqqqqqqz7ttjyq | jq
+{
+  "id": "acc6d53b163b0a5b3b18416370dd9343f26332c0ab56f42403d26997c0375703",
+  "pubkey": "fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52",
+  "created_at": 1697370933,
+  "kind": 1,
+  "tags": [],
+  "content": "`q` tags = a kind 1 that wanted to be a kind:6 but fell short\n\n🥁",
+  "sig": "b5b63d7c8491a4a0517df2c58151665c583abc6cd31fd50b957bf8fefc8e55c87c922cbdcb50888cb9f1c03c26ab5c02c1dccc14b46b78e1e16c60094f2358da"
+}
 ```
 
-written in go using [go-nostr](https://github.com/nbd-wtf/go-nostr), heavily inspired by [nostril](http://git.jb55.com/nostril/).
+### republish an event from one relay to multiple others
+```shell
+~> nak req -i e20978737ab7cd36eca300a65f11738176123f2e0c23054544b18fe493e2aa1a wss://nostr.wine/ wss://nostr-pub.wellorder.net | nak event wss://nostr.wine wss://offchain.pub wss://public.relaying.io wss://eden.nostr.land wss://atlas.nostr.land wss://relayable.org
+{"id":"e20978737ab7cd36eca300a65f11738176123f2e0c23054544b18fe493e2aa1a","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698632753,"kind":1,"tags":[["t","gm"]],"content":"good morning","sig":"5687c1a97066c349cb3bde0c0719fd1652a13403ba6aca7557b646307ee6718528cd86989db08bf6a7fd04bea0b0b87c1dd1b78c2d21b80b80eebab7f40b8916"}
+publishing to wss://nostr.wine... failed: msg: blocked: not an active paid member
+publishing to wss://offchain.pub... success.
+publishing to wss://public.relaying.io... success.
+publishing to wss://eden.nostr.land... failed: msg: blocked: not on white-list
+publishing to wss://atlas.nostr.land... failed: msg: blocked: not on white-list
+publishing to wss://relayable.org... success.
+```
 
-## a toolkit for debugging all things nostr as a webpage:
-
-![](https://user-images.githubusercontent.com/1653275/227681805-0cd20b39-de0d-4fcb-abb4-de3283404e8f.png)
-
-written in [scala](https://scala-lang.org/) with [calico](https://www.armanbilge.com/calico/) and [snow](https://github.com/fiatjaf/snow)
+### verify if an event is good
+```shell
+~> echo '{"content":"hello world","created_at":1698923350,"id":"05bd99d54cb835f327e0092c4275ee44c7ff51219eff417c19f70c9e2c53ad5a","kind":1,"pubkey":"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","sig":"0a04a296321ed933858577f36fb2fb9a0933e966f9ee32b539493f5a4d00120891b1ca9152ebfbc04fb403bdaa7c73f415e7c4954e55726b4b4fa8cebf008cd6","tags":[]}' | nak verify
+invalid .id, expected 05bd99d54cb835f427e0092c4275ee44c7ff51219eff417c19f70c9e2c53ad5a, got 05bd99d54cb835f327e0092c4275ee44c7ff51219eff417c19f70c9e2c53ad5a
+```

build.sbt

@@ -1,14 +0,0 @@
-enablePlugins(ScalaJSPlugin, EsbuildPlugin)
-
-name := "nostr-army-knife"
-scalaVersion := "3.3.0-RC4"
-
-lazy val root = (project in file("."))
-  .settings(
-    libraryDependencies ++= Seq(
-      "com.armanbilge" %%% "calico" % "0.2.0-RC2",
-      "com.fiatjaf" %%% "snow" % "0.0.1"
-    ),
-    scalaJSUseMainModuleInitializer := true,
-    scalaJSLinkerConfig ~= { _.withModuleKind(ModuleKind.CommonJSModule) }
-  )

edit.svg

@@ -1,7 +0,0 @@
-<?xml version="1.0" ?>
-<svg width="800px" height="800px" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-<g>
-  <path d="M20,16v4a2,2,0,0,1-2,2H4a2,2,0,0,1-2-2V6A2,2,0,0,1,4,4H8" fill="none" stroke="#f9cc9d" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/>
-  <polygon fill="none" points="12.5 15.8 22 6.2 17.8 2 8.3 11.5 8 16 12.5 15.8" stroke="#f9cc9d" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/>
-</g>
-</svg>

encode.go

@@ -3,7 +3,6 @@ package main
 import (
 	"encoding/hex"
 	"fmt"
-	"net/url"
 	"strings"
 
 	"github.com/nbd-wtf/go-nostr/nip19"
@@ -21,8 +20,8 @@ var encode = &cli.Command{
 		nak encode nevent --author <pubkey-hex> --relay <relay-url> --relay <other-relay> <event-id>
 		nak encode nsec <privkey-hex>`,
 	Before: func(c *cli.Context) error {
-		if c.Args().Len() < 2 {
-			return fmt.Errorf("expected more than 2 arguments.")
+		if c.Args().Len() < 1 {
+			return fmt.Errorf("expected more than 1 argument.")
 		}
 		return nil
 	},
@@ -31,7 +30,7 @@ var encode = &cli.Command{
 			Name:  "npub",
 			Usage: "encode a hex private key into bech32 'npub' format",
 			Action: func(c *cli.Context) error {
-				target := c.Args().First()
+				target := getStdinOrFirstArgument(c)
 				if err := validate32BytesHex(target); err != nil {
 					return err
 				}
@@ -48,7 +47,7 @@ var encode = &cli.Command{
 			Name:  "nsec",
 			Usage: "encode a hex private key into bech32 'nsec' format",
 			Action: func(c *cli.Context) error {
-				target := c.Args().First()
+				target := getStdinOrFirstArgument(c)
 				if err := validate32BytesHex(target); err != nil {
 					return err
 				}
@@ -72,7 +71,7 @@ var encode = &cli.Command{
 				},
 			},
 			Action: func(c *cli.Context) error {
-				target := c.Args().First()
+				target := getStdinOrFirstArgument(c)
 				if err := validate32BytesHex(target); err != nil {
 					return err
 				}
@@ -105,7 +104,7 @@ var encode = &cli.Command{
 				},
 			},
 			Action: func(c *cli.Context) error {
-				target := c.Args().First()
+				target := getStdinOrFirstArgument(c)
 				if err := validate32BytesHex(target); err != nil {
 					return err
 				}
@@ -187,6 +186,23 @@ var encode = &cli.Command{
 				}
 			},
 		},
+		{
+			Name:  "note",
+			Usage: "generate note1 event codes (not recommended)",
+			Action: func(c *cli.Context) error {
+				target := getStdinOrFirstArgument(c)
+				if err := validate32BytesHex(target); err != nil {
+					return err
+				}
+
+				if npub, err := nip19.EncodeNote(target); err == nil {
+					fmt.Println(npub)
+					return nil
+				} else {
+					return err
+				}
+			},
+		},
 	},
 }
 
@@ -203,22 +219,3 @@ func validate32BytesHex(target string) error {
 
 	return nil
 }
-
-func validateRelayURLs(wsurls []string) error {
-	for _, wsurl := range wsurls {
-		u, err := url.Parse(wsurl)
-		if err != nil {
-			return fmt.Errorf("invalid relay url '%s': %s", wsurl, err)
-		}
-
-		if u.Scheme != "ws" && u.Scheme != "wss" {
-			return fmt.Errorf("relay url must use wss:// or ws:// schemes, got '%s'", wsurl)
-		}
-
-		if u.Host == "" {
-			return fmt.Errorf("relay url '%s' is missing the hostname", wsurl)
-		}
-	}
-
-	return nil
-}

event.go

@@ -20,10 +20,18 @@ const CATEGORY_EVENT_FIELDS = "EVENT FIELDS"
 var event = &cli.Command{
 	Name:  "event",
 	Usage: "generates an encoded event and either prints it or sends it to a set of relays",
-	Description: `example usage (for sending directly to a relay with 'nostcat'):
-		nak event -k 1 -c hello --envelope | nostcat wss://nos.lol
-standalone:
-		nak event -k 1 -c hello wss://nos.lol`,
+	Description: `outputs an event built with the flags. if one or more relays are given as arguments, an attempt is also made to publish the event to these relays.
+
+example:
+		nak event -c hello wss://nos.lol
+		nak event -k 3 -p 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d
+
+if an event -- or a partial event -- is given on stdin, the flags can be used to optionally modify it. if it is modified it is rehashed and resigned, otherwise it is just returned as given, but that can be used to just publish to relays.
+
+example:
+		echo '{"id":"a889df6a387419ff204305f4c2d296ee328c3cd4f8b62f205648a541b4554dfb","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698623783,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"84876e1ee3e726da84e5d195eb79358b2b3eaa4d9bd38456fde3e8a2af3f1cd4cda23f23fda454869975b3688797d4c66e12f4c51c1b43c6d2997c5e61865661"}' | nak event wss://offchain.pub
+		echo '{"tags": [["t", "spam"]]}' | nak event -c 'this is spam'
+`,
 	Flags: []cli.Flag{
 		&cli.StringFlag{
 			Name:        "sec",
@@ -44,7 +52,7 @@ standalone:
 			Aliases:     []string{"k"},
 			Usage:       "event kind",
 			DefaultText: "1",
-			Value:       1,
+			Value:       0,
 			Category:    CATEGORY_EVENT_FIELDS,
 		},
 		&cli.StringFlag{
@@ -52,7 +60,7 @@ standalone:
 			Aliases:     []string{"c"},
 			Usage:       "event content",
 			DefaultText: "hello from the nostr army knife",
-			Value:       "hello from the nostr army knife",
+			Value:       "",
 			Category:    CATEGORY_EVENT_FIELDS,
 		},
 		&cli.StringSliceFlag{
@@ -76,16 +84,38 @@ standalone:
 			Aliases:     []string{"time", "ts"},
 			Usage:       "unix timestamp value for the created_at field",
 			DefaultText: "now",
-			Value:       "now",
+			Value:       "",
 			Category:    CATEGORY_EVENT_FIELDS,
 		},
 	},
 	ArgsUsage: "[relay...]",
 	Action: func(c *cli.Context) error {
 		evt := nostr.Event{
-			Kind:    c.Int("kind"),
-			Content: c.String("content"),
-			Tags:    make(nostr.Tags, 0, 3),
+			Tags: make(nostr.Tags, 0, 3),
+		}
+
+		mustRehashAndResign := false
+
+		if stdinEvent := getStdin(); stdinEvent != "" {
+			if err := json.Unmarshal([]byte(stdinEvent), &evt); err != nil {
+				return fmt.Errorf("invalid event received from stdin: %w", err)
+			}
+		}
+
+		if kind := c.Int("kind"); kind != 0 {
+			evt.Kind = kind
+			mustRehashAndResign = true
+		} else if evt.Kind == 0 {
+			evt.Kind = 1
+			mustRehashAndResign = true
+		}
+
+		if content := c.String("content"); content != "" {
+			evt.Content = content
+			mustRehashAndResign = true
+		} else if evt.Content == "" && evt.Kind == 1 {
+			evt.Content = "hello from the nostr army knife"
+			mustRehashAndResign = true
 		}
 
 		tags := make(nostr.Tags, 0, 5)
@@ -103,29 +133,39 @@ standalone:
 		}
 		for _, etag := range c.StringSlice("e") {
 			tags = append(tags, []string{"e", etag})
+			mustRehashAndResign = true
 		}
 		for _, ptag := range c.StringSlice("p") {
 			tags = append(tags, []string{"p", ptag})
+			mustRehashAndResign = true
 		}
 		if len(tags) > 0 {
 			for _, tag := range tags {
 				evt.Tags = append(evt.Tags, tag)
 			}
+			mustRehashAndResign = true
 		}
 
-		createdAt := c.String("created-at")
-		ts := time.Now()
-		if createdAt != "now" {
-			if v, err := strconv.ParseInt(createdAt, 10, 64); err != nil {
-				return fmt.Errorf("failed to parse timestamp '%s': %w", createdAt, err)
-			} else {
-				ts = time.Unix(v, 0)
+		if createdAt := c.String("created-at"); createdAt != "" {
+			ts := time.Now()
+			if createdAt != "now" {
+				if v, err := strconv.ParseInt(createdAt, 10, 64); err != nil {
+					return fmt.Errorf("failed to parse timestamp '%s': %w", createdAt, err)
+				} else {
+					ts = time.Unix(v, 0)
+				}
 			}
+			evt.CreatedAt = nostr.Timestamp(ts.Unix())
+			mustRehashAndResign = true
+		} else if evt.CreatedAt == 0 {
+			evt.CreatedAt = nostr.Now()
+			mustRehashAndResign = true
 		}
-		evt.CreatedAt = nostr.Timestamp(ts.Unix())
 
-		if err := evt.Sign(c.String("sec")); err != nil {
-			return fmt.Errorf("error signing with provided key: %w", err)
+		if evt.Sig == "" || mustRehashAndResign {
+			if err := evt.Sign(c.String("sec")); err != nil {
+				return fmt.Errorf("error signing with provided key: %w", err)
+			}
 		}
 
 		relays := c.Args().Slice()

ext.svg

@@ -1 +0,0 @@
-<svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M17 13.5v6H5v-12h6m3-3h6v6m0-6-9 9" class="icon_svg-stroke" stroke="#3b82f6" stroke-width="1.5" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg>

fetch.go

@@ -0,0 +1,90 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip19"
+	"github.com/nbd-wtf/go-nostr/sdk"
+	"github.com/urfave/cli/v2"
+)
+
+var fetch = &cli.Command{
+	Name:  "fetch",
+	Usage: "fetches events related to the given nip19 code from the included relay hints",
+	Description: `example usage:
+        nak fetch nevent1qqsxrwm0hd3s3fddh4jc2574z3xzufq6qwuyz2rvv3n087zvym3dpaqprpmhxue69uhhqatzd35kxtnjv4kxz7tfdenju6t0xpnej4
+        echo npub1h8spmtw9m2huyv6v2j2qd5zv956z2zdugl6mgx02f2upffwpm3nqv0j4ps | nak fetch --relay wss://relay.nostr.band`,
+	Flags: []cli.Flag{
+		&cli.StringSliceFlag{
+			Name:    "relay",
+			Aliases: []string{"r"},
+			Usage:   "also use these relays to fetch from",
+		},
+	},
+	ArgsUsage: "[nip19code]",
+	Action: func(c *cli.Context) error {
+		filter := nostr.Filter{}
+		code := getStdinOrFirstArgument(c)
+
+		prefix, value, err := nip19.Decode(code)
+		if err != nil {
+			return err
+		}
+
+		relays := c.StringSlice("relay")
+		if err := validateRelayURLs(relays); err != nil {
+			return err
+		}
+		var authorHint string
+
+		switch prefix {
+		case "nevent":
+			v := value.(nostr.EventPointer)
+			filter.IDs = append(filter.IDs, v.ID)
+			if v.Author != "" {
+				authorHint = v.Author
+			}
+			relays = v.Relays
+		case "naddr":
+			v := value.(nostr.EntityPointer)
+			filter.Tags = nostr.TagMap{"d": []string{v.Identifier}}
+			filter.Kinds = append(filter.Kinds, v.Kind)
+			filter.Authors = append(filter.Authors, v.PublicKey)
+			authorHint = v.PublicKey
+			relays = v.Relays
+		case "nprofile":
+			v := value.(nostr.ProfilePointer)
+			filter.Authors = append(filter.Authors, v.PublicKey)
+			filter.Kinds = append(filter.Kinds, 0)
+			authorHint = v.PublicKey
+			relays = v.Relays
+		case "npub":
+			v := value.(string)
+			filter.Authors = append(filter.Authors, v)
+			filter.Kinds = append(filter.Kinds, 0)
+			authorHint = v
+		}
+
+		pool := nostr.NewSimplePool(c.Context)
+		if authorHint != "" {
+			relayList := sdk.FetchRelaysForPubkey(c.Context, pool, authorHint,
+				"wss://purplepag.es", "wss://offchain.pub", "wss://public.relaying.io")
+			for _, relayListItem := range relayList {
+				if relayListItem.Outbox {
+					relays = append(relays, relayListItem.URL)
+				}
+			}
+		}
+
+		if len(relays) == 0 {
+			return fmt.Errorf("no relay hints found")
+		}
+
+		for ie := range pool.SubManyEose(c.Context, relays, nostr.Filters{filter}) {
+			fmt.Println(ie.Event)
+		}
+
+		return nil
+	},
+}

helpers.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net/url"
+	"os"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+)
+
+func getStdin() string {
+	stat, _ := os.Stdin.Stat()
+	if (stat.Mode() & os.ModeCharDevice) == 0 {
+		read := bytes.NewBuffer(make([]byte, 0, 1000))
+		_, err := io.Copy(read, os.Stdin)
+		if err == nil {
+			return strings.TrimSpace(read.String())
+		}
+	}
+	return ""
+}
+
+func getStdinOrFirstArgument(c *cli.Context) string {
+	target := c.Args().First()
+	if target != "" {
+		return target
+	}
+	return getStdin()
+}
+
+func validateRelayURLs(wsurls []string) error {
+	for _, wsurl := range wsurls {
+		u, err := url.Parse(wsurl)
+		if err != nil {
+			return fmt.Errorf("invalid relay url '%s': %s", wsurl, err)
+		}
+
+		if u.Scheme != "ws" && u.Scheme != "wss" {
+			return fmt.Errorf("relay url must use wss:// or ws:// schemes, got '%s'", wsurl)
+		}
+
+		if u.Host == "" {
+			return fmt.Errorf("relay url '%s' is missing the hostname", wsurl)
+		}
+	}
+
+	return nil
+}

index.html

@@ -1,7 +0,0 @@
-<meta charset=utf-8>
-<title>nostr army knife</title>
-<script src="https://cdn.tailwindcss.com"></script>
-<body class="bg-emerald-200 text-black m-0 w-full h-full">
-  <div id="app" class="w-full h-full"></div>
-  <script type="module" src="/target/esbuild/bundle.js"></script>
-</body>

justfile

@@ -1,13 +0,0 @@
-build-prod:
-    sbt fullLinkJS/esBuild
-
-cloudflare:
-    rm -fr cf
-    mkdir -p cf/target/esbuild
-    cp index.html cf/
-    cp favicon.ico cf/
-    cp target/esbuild/bundle.js cf/target/esbuild
-    wrangler pages publish cf --project-name nostr-army-knife --branch master
-    rm -fr cf
-
-build-and-deploy: build-prod cloudflare

main.go

@@ -14,9 +14,11 @@ func main() {
 		Commands: []*cli.Command{
 			req,
 			count,
+			fetch,
 			event,
 			decode,
 			encode,
+			verify,
 		},
 	}
 

project/build.properties

@@ -1 +0,0 @@
-sbt.version=1.7.1

project/plugins.sbt

@@ -1,2 +0,0 @@
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.13.0")
-addSbtPlugin("com.fiatjaf" % "sbt-esbuild" % "0.1.1")

req.go

@@ -16,10 +16,15 @@ var req = &cli.Command{
 	Usage: "generates encoded REQ messages and optionally use them to talk to relays",
 	Description: `outputs a NIP-01 Nostr filter. when a relay is not given, will print the filter, otherwise will connect to the given relay and send the filter.
 
-example usage (with 'nostcat'):
-		nak req -k 1 -a 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d | nostcat wss://nos.lol
-standalone:
-		nak req -k 1 wss://nos.lol`,
+example:
+		nak req -k 1 -l 15 wss://nostr.wine wss://nostr-pub.wellorder.net
+		nak req -k 0 -a 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d wss://nos.lol | jq '.content | fromjson | .name'
+
+it can also take a filter from stdin, optionally modify it with flags and send it to specific relays (or just print it).
+
+example:
+		echo '{"kinds": [1], "#t": ["test"]}' | nak req -l 5 -k 4549 --tag t=spam wss://nostr-pub.wellorder.net
+`,
 	Flags: []cli.Flag{
 		&cli.StringSliceFlag{
 			Name:     "author",
@@ -91,15 +96,20 @@ standalone:
 	ArgsUsage: "[relay...]",
 	Action: func(c *cli.Context) error {
 		filter := nostr.Filter{}
+		if stdinFilter := getStdin(); stdinFilter != "" {
+			if err := json.Unmarshal([]byte(stdinFilter), &filter); err != nil {
+				return fmt.Errorf("invalid filter received from stdin: %w", err)
+			}
+		}
 
 		if authors := c.StringSlice("author"); len(authors) > 0 {
-			filter.Authors = authors
+			filter.Authors = append(filter.Authors, authors...)
 		}
 		if ids := c.StringSlice("id"); len(ids) > 0 {
-			filter.IDs = ids
+			filter.IDs = append(filter.IDs, ids...)
 		}
 		if kinds := c.IntSlice("kind"); len(kinds) > 0 {
-			filter.Kinds = kinds
+			filter.Kinds = append(filter.Kinds, kinds...)
 		}
 		if search := c.String("search"); search != "" {
 			filter.Search = search
@@ -119,14 +129,16 @@ standalone:
 		for _, ptag := range c.StringSlice("p") {
 			tags = append(tags, []string{"p", ptag})
 		}
-		if len(tags) > 0 {
+
+		if len(tags) > 0 && filter.Tags == nil {
 			filter.Tags = make(nostr.TagMap)
-			for _, tag := range tags {
-				if _, ok := filter.Tags[tag[0]]; !ok {
-					filter.Tags[tag[0]] = make([]string, 0, 3)
-				}
-				filter.Tags[tag[0]] = append(filter.Tags[tag[0]], tag[1])
+		}
+
+		for _, tag := range tags {
+			if _, ok := filter.Tags[tag[0]]; !ok {
+				filter.Tags[tag[0]] = make([]string, 0, 3)
 			}
+			filter.Tags[tag[0]] = append(filter.Tags[tag[0]], tag[1])
 		}
 
 		if since := c.Int("since"); since != 0 {

src/main/scala/Components.scala

@@ -1,476 +0,0 @@
-import cats.data.{Store => *, *}
-import cats.effect.*
-import cats.effect.syntax.all.*
-import cats.syntax.all.*
-import fs2.concurrent.*
-import fs2.dom.{Event => _, *}
-import io.circe.parser.*
-import io.circe.syntax.*
-import calico.*
-import calico.html.io.{*, given}
-import calico.syntax.*
-import scodec.bits.ByteVector
-import scoin.*
-import snow.*
-
-import Utils.*
-
-object Components {
-  def render32Bytes(
-      store: Store,
-      bytes32: ByteVector32
-  ): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "text-md",
-      entry("canonical hex", bytes32.toHex),
-      "if this is a public key:",
-      div(
-        cls := "mt-2 pl-2 mb-2",
-        entry(
-          "npub",
-          NIP19.encode(XOnlyPublicKey(bytes32)),
-          Some(
-            selectable(
-              store,
-              NIP19.encode(XOnlyPublicKey(bytes32))
-            )
-          )
-        ),
-        nip19_21(
-          store,
-          "nprofile",
-          NIP19.encode(ProfilePointer(XOnlyPublicKey(bytes32)))
-        )
-      ),
-      "if this is a private key:",
-      div(
-        cls := "pl-2 mb-2",
-        entry(
-          "nsec",
-          NIP19.encode(PrivateKey(bytes32)),
-          Some(
-            selectable(
-              store,
-              NIP19.encode(PrivateKey(bytes32))
-            )
-          )
-        ),
-        entry(
-          "npub",
-          NIP19.encode(PrivateKey(bytes32).publicKey.xonly),
-          Some(
-            selectable(
-              store,
-              NIP19.encode(PrivateKey(bytes32).publicKey.xonly)
-            )
-          )
-        ),
-        nip19_21(
-          store,
-          "nprofile",
-          NIP19.encode(ProfilePointer(PrivateKey(bytes32).publicKey.xonly))
-        )
-      ),
-      "if this is an event id:",
-      div(
-        cls := "pl-2 mb-2",
-        nip19_21(
-          store,
-          "nevent",
-          NIP19.encode(EventPointer(bytes32.toHex))
-        )
-      ),
-      div(
-        cls := "pl-2 mb-2",
-        entry(
-          "note",
-          NIP19.encode(bytes32),
-          Some(
-            selectable(
-              store,
-              NIP19.encode(bytes32)
-            )
-          )
-        )
-      )
-    )
-
-  def renderEventPointer(
-      store: Store,
-      evp: snow.EventPointer
-  ): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "text-md",
-      entry(
-        "event id (hex)",
-        evp.id,
-        Some(selectable(store, evp.id))
-      ),
-      relayHints(store, evp.relays),
-      evp.author.map { pk =>
-        entry("author hint (pubkey hex)", pk.value.toHex)
-      },
-      nip19_21(store, "nevent", NIP19.encode(evp)),
-      entry(
-        "note",
-        NIP19.encode(ByteVector32.fromValidHex(evp.id)),
-        Some(selectable(store, NIP19.encode(ByteVector32.fromValidHex(evp.id))))
-      )
-    )
-
-  def renderProfilePointer(
-      store: Store,
-      pp: snow.ProfilePointer,
-      sk: Option[PrivateKey] = None
-  ): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "text-md",
-      sk.map { k =>
-        entry(
-          "private key (hex)",
-          k.value.toHex,
-          Some(selectable(store, k.value.toHex))
-        )
-      },
-      sk.map { k =>
-        entry(
-          "nsec",
-          NIP19.encode(k),
-          Some(selectable(store, NIP19.encode(k)))
-        )
-      },
-      entry(
-        "public key (hex)",
-        pp.pubkey.value.toHex,
-        Some(selectable(store, pp.pubkey.value.toHex))
-      ),
-      relayHints(
-        store,
-        pp.relays,
-        dynamic = if sk.isDefined then false else true
-      ),
-      entry(
-        "npub",
-        NIP19.encode(pp.pubkey),
-        Some(selectable(store, NIP19.encode(pp.pubkey)))
-      ),
-      nip19_21(store, "nprofile", NIP19.encode(pp))
-    )
-
-  def renderAddressPointer(
-      store: Store,
-      addr: snow.AddressPointer
-  ): Resource[IO, HtmlDivElement[IO]] = {
-    val nip33atag =
-      s"${addr.kind}:${addr.author.value.toHex}:${addr.d}"
-
-    div(
-      cls := "text-md",
-      entry("author (pubkey hex)", addr.author.value.toHex),
-      entry("identifier (d tag)", addr.d),
-      entry("kind", addr.kind.toString),
-      relayHints(store, addr.relays),
-      nip19_21(store, "naddr", NIP19.encode(addr)),
-      entry("nip33 'a' tag", nip33atag, Some(selectable(store, nip33atag)))
-    )
-  }
-
-  def renderEvent(
-      store: Store,
-      event: Event
-  ): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "text-md",
-      if event.pubkey.isEmpty then
-        Some(
-          div(
-            cls := "flex items-center",
-            entry("missing", "pubkey"),
-            button(
-              Styles.buttonSmall,
-              "fill with a debugging key",
-              onClick --> (_.foreach { _ =>
-                store.input.set(
-                  event
-                    .copy(pubkey = Some(keyOne.publicKey.xonly))
-                    .asJson
-                    .printWith(jsonPrinter)
-                )
-              })
-            )
-          )
-        )
-      else None,
-      if event.id.isEmpty then
-        Some(
-          div(
-            cls := "flex items-center",
-            entry("missing", "id"),
-            if event.pubkey.isDefined then
-              Some(
-                button(
-                  Styles.buttonSmall,
-                  "fill id",
-                  onClick --> (_.foreach(_ =>
-                    store.input.set(
-                      event
-                        .copy(id = Some(event.hash.toHex))
-                        .asJson
-                        .printWith(jsonPrinter)
-                    )
-                  ))
-                )
-              )
-            else None
-          )
-        )
-      else None,
-      if event.sig.isEmpty then
-        Some(
-          div(
-            cls := "flex items-center",
-            entry("missing", "sig"),
-            if event.id.isDefined && event.pubkey == Some(
-                keyOne.publicKey.xonly
-              )
-            then
-              Some(
-                button(
-                  Styles.buttonSmall,
-                  "sign",
-                  onClick --> (_.foreach(_ =>
-                    store.input.set(
-                      event
-                        .sign(keyOne)
-                        .asJson
-                        .printWith(jsonPrinter)
-                    )
-                  ))
-                )
-              )
-            else None
-          )
-        )
-      else None,
-      entry("serialized event", event.serialized),
-      entry("implied event id", event.hash.toHex),
-      entry(
-        "does the implied event id match the given event id?",
-        event.id == Some(event.hash.toHex) match {
-          case true => "yes"; case false => "no"
-        }
-      ),
-      entry(
-        "is signature valid?",
-        event.isValid match {
-          case true => "yes"; case false => "no"
-        }
-      ),
-      event.id.map(id =>
-        nip19_21(
-          store,
-          "nevent",
-          NIP19.encode(EventPointer(id, author = event.pubkey))
-        )
-      ),
-      if event.kind >= 30000 && event.kind < 40000 then
-        event.pubkey
-          .map(author =>
-            nip19_21(
-              store,
-              "naddr",
-              NIP19.encode(
-                AddressPointer(
-                  d = event.tags
-                    .collectFirst { case "d" :: v :: _ => v }
-                    .getOrElse(""),
-                  kind = event.kind,
-                  author = author,
-                  relays = List.empty
-                )
-              )
-            )
-          )
-      else
-        event.id.map(id =>
-          entry(
-            "note",
-            NIP19.encode(ByteVector32.fromValidHex(id)),
-            Some(selectable(store, NIP19.encode(ByteVector32.fromValidHex(id))))
-          )
-        )
-    )
-
-  private def entry(
-      key: String,
-      value: String,
-      selectLink: Option[Resource[IO, HtmlSpanElement[IO]]] = None
-  ): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "flex items-center space-x-3",
-      span(cls := "font-bold", key + " "),
-      span(Styles.mono, cls := "max-w-xl break-all", value),
-      selectLink
-    )
-
-  private def nip19_21(
-      store: Store,
-      key: String,
-      code: String
-  ): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      span(cls := "font-bold", key + " "),
-      span(Styles.mono, cls := "break-all", code),
-      selectable(store, code),
-      a(
-        href := "nostr:" + code,
-        external
-      )
-    )
-
-  private def relayHints(
-      store: Store,
-      relays: List[String],
-      dynamic: Boolean = true
-  ): Resource[IO, HtmlDivElement[IO]] =
-    if !dynamic && relays.isEmpty then div("")
-    else
-      SignallingRef[IO].of(false).toResource.flatMap { active =>
-        val value =
-          if relays.size > 0 then relays.reduce((a, b) => s"$a, $b") else ""
-
-        div(
-          cls := "flex items-center space-x-3",
-          span(cls := "font-bold", "relay hints "),
-          if relays.size == 0 then div("")
-          else
-            // displaying each relay hint
-            div(
-              cls := "flex flex-wrap max-w-xl",
-              relays
-                .map(url =>
-                  div(
-                    Styles.mono,
-                    cls := "flex items-center rounded py-0.5 px-1 mr-1 mb-1 bg-orange-100",
-                    url,
-                    // removing a relay hint by clicking on the x
-                    div(
-                      cls := "cursor-pointer ml-1 text-rose-600 hover:text-rose-300",
-                      onClick --> (_.foreach(_ => {
-                        store.result.get.flatMap(result =>
-                          store.input.set(
-                            result
-                              .map {
-                                case a: AddressPointer =>
-                                  NIP19
-                                    .encode(
-                                      a.copy(relays =
-                                        relays.filterNot(_ == url)
-                                      )
-                                    )
-                                case p: ProfilePointer =>
-                                  NIP19
-                                    .encode(
-                                      p.copy(relays =
-                                        relays.filterNot(_ == url)
-                                      )
-                                    )
-                                case e: EventPointer =>
-                                  NIP19
-                                    .encode(
-                                      e.copy(relays =
-                                        relays.filterNot(_ == url)
-                                      )
-                                    )
-                                case r => ""
-                              }
-                              .getOrElse("")
-                          )
-                        )
-                      })),
-                      "×"
-                    )
-                  )
-                )
-            )
-          ,
-          active.map {
-            case true =>
-              div(
-                input.withSelf { self =>
-                  (
-                    onKeyPress --> (_.foreach(evt =>
-                      // confirm adding a relay hint
-                      evt.key match {
-                        case "Enter" =>
-                          self.value.get.flatMap(url =>
-                            if url.startsWith("wss://") || url
-                                .startsWith("ws://")
-                            then {
-                              store.result.get.flatMap(result =>
-                                store.input.set(
-                                  result
-                                    .map {
-                                      case a: AddressPointer =>
-                                        NIP19
-                                          .encode(
-                                            a.copy(relays = a.relays :+ url)
-                                          )
-                                      case p: ProfilePointer =>
-                                        NIP19
-                                          .encode(
-                                            p.copy(relays = p.relays :+ url)
-                                          )
-                                      case e: EventPointer =>
-                                        NIP19
-                                          .encode(
-                                            e.copy(relays = e.relays :+ url)
-                                          )
-                                      case r => ""
-                                    }
-                                    .getOrElse("")
-                                )
-                              )
-                                >> active.set(false)
-                            } else IO.unit
-                          )
-                        case _ => IO.unit
-                      }
-                    ))
-                  )
-                }
-              )
-            case false if dynamic =>
-              // button to add a new relay hint
-              button(
-                Styles.buttonSmall,
-                "add relay hint",
-                onClick --> (_.foreach(_ => active.set(true)))
-              )
-            case false => div("")
-          }
-        )
-      }
-
-  private def selectable(
-      store: Store,
-      code: String
-  ): Resource[IO, HtmlSpanElement[IO]] =
-    span(
-      store.input.map(current =>
-        if current == code then a("")
-        else
-          a(
-            href := "#/" + code,
-            onClick --> (_.foreach(evt =>
-              evt.preventDefault >>
-                store.input.set(code)
-            )),
-            edit
-          )
-      )
-    )
-
-  private val edit = img(cls := "inline w-4 ml-2", src := "edit.svg")
-  private val external = img(cls := "inline w-4 ml-2", src := "ext.svg")
-}

src/main/scala/Main.scala

@@ -1,147 +0,0 @@
-import cats.effect.*
-import cats.effect.syntax.all.*
-import cats.syntax.all.*
-import fs2.concurrent.*
-import fs2.dom.{Event => _, *}
-import io.circe.parser.*
-import io.circe.syntax.*
-import calico.*
-import calico.html.io.{*, given}
-import calico.syntax.*
-import scoin.*
-import snow.*
-
-import Utils.*
-import Components.*
-
-object Main extends IOWebApp {
-  def render: Resource[IO, HtmlDivElement[IO]] = Store(window).flatMap {
-    store =>
-      div(
-        cls := "flex w-full flex-col items-center justify-center",
-        div(
-          cls := "w-4/5",
-          h1(
-            cls := "px-1 py-2 text-center text-xl",
-            img(
-              cls := "inline-block w-8 mr-2",
-              src := "/favicon.ico"
-            ),
-            a(
-              href := "/",
-              "nostr army knife"
-            )
-          ),
-          div(
-            cls := "flex my-3",
-            input(store),
-            actions(store)
-          ),
-          result(store)
-        ),
-        div(
-          cls := "flex justify-end mr-5 mt-10 text-xs w-4/5",
-          a(
-            href := "https://github.com/fiatjaf/nak",
-            "source code"
-          ),
-          a(
-            cls := "ml-4",
-            href := "https://github.com/fiatjaf/nak",
-            "get the command-line tool"
-          )
-        )
-      )
-  }
-
-  def actions(store: Store): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "flex flex-col space-y-1 my-3",
-      store.input.map {
-        case "" => div("")
-        case _ =>
-          button(
-            Styles.button,
-            "clear",
-            onClick --> (_.foreach(_ => store.input.set("")))
-          )
-      },
-      store.result.map {
-        case Right(_: Event) =>
-          button(
-            Styles.button,
-            "format",
-            onClick --> (_.foreach(_ =>
-              store.input.update(original =>
-                parse(original).toOption
-                  .map(_.printWith(jsonPrinter))
-                  .getOrElse(original)
-              )
-            ))
-          )
-        case _ => div("")
-      },
-      button(
-        Styles.button,
-        "generate event",
-        onClick --> (_.foreach(_ =>
-          store.input.set(
-            Event(
-              kind = 1,
-              content = "hello world"
-            ).sign(keyOne)
-              .asJson
-              .printWith(jsonPrinter)
-          )
-        ))
-      ),
-      button(
-        Styles.button,
-        "generate keypair",
-        onClick --> (_.foreach(_ =>
-          store.input.set(
-            NIP19.encode(PrivateKey(randomBytes32()))
-          )
-        ))
-      )
-    )
-
-  def input(store: Store): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "w-full grow",
-      div(
-        cls := "w-full flex justify-center",
-        textArea.withSelf { self =>
-          (
-            cls := "w-full max-h-96 p-3 rounded",
-            styleAttr := "min-height: 280px; font-family: monospace",
-            spellCheck := false,
-            placeholder := "paste something nostric (event JSON, nprofile, npub, nevent etc or hex key or id)",
-            onInput --> (_.foreach(_ =>
-              self.value.get.flatMap(store.input.set)
-            )),
-            value <-- store.input
-          )
-        }
-      )
-    )
-
-  def result(store: Store): Resource[IO, HtmlDivElement[IO]] =
-    div(
-      cls := "w-full flex my-5",
-      store.result.map {
-        case Left(msg)                  => div(msg)
-        case Right(bytes: ByteVector32) => render32Bytes(store, bytes)
-        case Right(event: Event)        => renderEvent(store, event)
-        case Right(pp: ProfilePointer)  => renderProfilePointer(store, pp)
-        case Right(evp: EventPointer)   => renderEventPointer(store, evp)
-        case Right(sk: PrivateKey) =>
-          renderProfilePointer(
-            store,
-            ProfilePointer(pubkey = sk.publicKey.xonly),
-            Some(sk)
-          )
-        case Right(addr: AddressPointer) => renderAddressPointer(store, addr)
-      }
-    )
-}

src/main/scala/Parser.scala

@@ -1,61 +0,0 @@
-import scala.util.Try
-import io.circe.parser.*
-import cats.syntax.all.*
-import scodec.bits.ByteVector
-import scoin.*
-import snow.*
-
-type Result = Either[
-  String,
-  Event | PrivateKey | AddressPointer | EventPointer | ProfilePointer |
-    ByteVector32
-]
-
-object Parser {
-  val additions = raw" *\+ *".r
-
-  def parseInput(input: String): Result =
-    if input == "" then Left("")
-    else
-      ByteVector
-        .fromHex(input)
-        .flatMap(b => Try(Right(ByteVector32(b))).toOption)
-        .getOrElse(
-          NIP19.decode(input) match {
-            case Right(pp: ProfilePointer)             => Right(pp)
-            case Right(evp: EventPointer)              => Right(evp)
-            case Right(sk: PrivateKey)                 => Right(sk)
-            case Right(addr: AddressPointer)           => Right(addr)
-            case Left(_) if input.split(":").size == 3 =>
-              // parse "a" tag format, nip 33
-              val spl = input.split(":")
-              (
-                spl(0).toIntOption,
-                ByteVector.fromHex(spl(1)),
-                Some(spl(2))
-              ).mapN((kind, author, identifier) =>
-                AddressPointer(
-                  identifier,
-                  kind,
-                  scoin.XOnlyPublicKey(ByteVector32(author)),
-                  relays = List.empty
-                )
-              ).toRight("couldn't parse as a nip33 'a' tag")
-            case Left(_) =>
-              // parse event json
-              parse(input) match {
-                case Left(err: io.circe.ParsingFailure) =>
-                  Left("not valid JSON or NIP-19 code")
-                case Right(json) =>
-                  json
-                    .as[Event]
-                    .leftMap { err =>
-                      err.pathToRootString match {
-                        case None       => s"decoding ${err.pathToRootString}"
-                        case Some(path) => s"field $path is missing or wrong"
-                      }
-                    }
-              }
-          }
-        )
-}

src/main/scala/Store.scala

@@ -1,46 +0,0 @@
-import cats.data.*
-import cats.effect.*
-import cats.effect.syntax.all.*
-import cats.syntax.all.*
-import fs2.concurrent.*
-import fs2.dom.{Event => _, *}
-import scoin.PrivateKey
-
-case class Store(
-    input: SignallingRef[IO, String],
-    result: SignallingRef[IO, Result]
-)
-
-object Store {
-  def apply(window: Window[IO]): Resource[IO, Store] = {
-    val key = "nak-input"
-
-    for {
-      input <- SignallingRef[IO].of("").toResource
-      result <- SignallingRef[IO, Result](Left("")).toResource
-
-      _ <- Resource.eval {
-        OptionT(window.localStorage.getItem(key))
-          .foreachF(input.set(_))
-      }
-
-      _ <- window.localStorage
-        .events(window)
-        .foreach {
-          case Storage.Event.Updated(`key`, _, value, _) =>
-            input.set(value)
-          case _ => IO.unit
-        }
-        .compile
-        .drain
-        .background
-
-      _ <- input.discrete
-        .evalTap(input => IO.cede *> window.localStorage.setItem(key, input))
-        .evalTap(input => result.set(Parser.parseInput(input.trim())))
-        .compile
-        .drain
-        .background
-    } yield Store(input, result)
-  }
-}

src/main/scala/Styles.scala

@@ -1,9 +0,0 @@
-import calico.html.io.*
-
-object Styles {
-  val button = cls :=
-    "shrink bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 mx-2 px-4 rounded "
-  val buttonSmall = cls :=
-    "shrink text-sm bg-blue-500 hover:bg-blue-700 text-white font-bold mx-2 px-2 rounded "
-  val mono = styleAttr := "font-family: monospace"
-}

src/main/scala/Utils.scala

@@ -1,22 +0,0 @@
-import io.circe.Printer
-import scodec.bits.ByteVector
-import scoin.*
-
-object Utils {
-  val keyOne = PrivateKey(ByteVector32(ByteVector(0x01).padLeft(32)))
-
-  val jsonPrinter = Printer(
-    dropNullValues = false,
-    indent = "  ",
-    lbraceRight = "\n",
-    rbraceLeft = "\n",
-    lbracketRight = "\n",
-    rbracketLeft = "\n",
-    lrbracketsEmpty = "",
-    arrayCommaRight = "\n",
-    objectCommaRight = "\n",
-    colonLeft = "",
-    colonRight = " ",
-    sortKeys = true
-  )
-}

verify.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/nbd-wtf/go-nostr"
+	"github.com/urfave/cli/v2"
+)
+
+var verify = &cli.Command{
+	Name:  "verify",
+	Usage: "checks the hash and signature of an event given through stdin",
+	Description: `example:
+		echo '{"id":"a889df6a387419ff204305f4c2d296ee328c3cd4f8b62f205648a541b4554dfb","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698623783,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"84876e1ee3e726da84e5d195eb79358b2b3eaa4d9bd38456fde3e8a2af3f1cd4cda23f23fda454869975b3688797d4c66e12f4c51c1b43c6d2997c5e61865661"}' | nak verify
+
+it outputs nothing if the verification is successful.
+`,
+	Action: func(c *cli.Context) error {
+		evt := nostr.Event{}
+		if stdinEvent := getStdin(); stdinEvent != "" {
+			if err := json.Unmarshal([]byte(stdinEvent), &evt); err != nil {
+				return fmt.Errorf("invalid JSON: %w", err)
+			}
+		}
+
+		if evt.GetID() != evt.ID {
+			return fmt.Errorf("invalid .id, expected %s, got %s", evt.GetID(), evt.ID)
+		}
+
+		if ok, err := evt.CheckSignature(); !ok {
+			return fmt.Errorf("invalid signature: %w", err)
+		}
+
+		return nil
+	},
+}