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nostr-tools
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remove all the NIP-26 stuff.

This commit is contained in:
fiatjaf 2023-12-13 15:24:57 -03:00
parent 4fcf925387
commit 867aa11d12
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5 changed files with 0 additions and 215 deletions
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37
README.md
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@ -258,43 +258,6 @@ sub.on('event', async event => {
})
```
### Performing and checking for delegation
```js
import { nip26, getPublicKey, generatePrivateKey } from 'nostr-tools'
// delegator
let sk1 = generatePrivateKey()
let pk1 = getPublicKey(sk1)
// delegatee
let sk2 = generatePrivateKey()
let pk2 = getPublicKey(sk2)
// generate delegation
let delegation = nip26.createDelegation(sk1, {
pubkey: pk2,
kind: 1,
since: Math.round(Date.now() / 1000),
until: Math.round(Date.now() / 1000) + 60 * 60 * 24 * 30 /* 30 days */,
})
// the delegatee uses the delegation when building an event
let event = {
pubkey: pk2,
kind: 1,
created_at: Math.round(Date.now() / 1000),
content: 'hello from a delegated key',
tags: [['delegation', delegation.from, delegation.cond, delegation.sig]],
}
// finally any receiver of this event can check for the presence of a valid delegation tag
let delegator = nip26.getDelegator(event)
assert(delegator === pk1) // will be null if there is no delegation tag or if it is invalid
```
Please consult the tests or [the source code](https://github.com/fiatjaf/nostr-tools) for more information that isn't available here.
### Using from the browser (if you don't want to use a bundler)
```html

1
index.ts
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@ -13,7 +13,6 @@ export * as nip18 from './nip18.ts'
export * as nip19 from './nip19.ts'
export * as nip21 from './nip21.ts'
export * as nip25 from './nip25.ts'
export * as nip26 from './nip26.ts'
export * as nip27 from './nip27.ts'
export * as nip28 from './nip28.ts'
export * as nip39 from './nip39.ts'

101
nip26.test.ts
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@ -1,101 +0,0 @@
import { getPublicKey, generatePrivateKey } from './keys.ts'
import { getDelegator, createDelegation } from './nip26.ts'
import { buildEvent } from './test-helpers.ts'
test('parse good delegation from NIP', async () => {
expect(
getDelegator({
id: 'a080fd288b60ac2225ff2e2d815291bd730911e583e177302cc949a15dc2b2dc',
pubkey: '62903b1ff41559daf9ee98ef1ae67cc52f301bb5ce26d14baba3052f649c3f49',
created_at: 1660896109,
kind: 1,
tags: [
[
'delegation',
'86f0689bd48dcd19c67a19d994f938ee34f251d8c39976290955ff585f2db42e',
'kind=1&created_at>1640995200',
'c33c88ba78ec3c760e49db591ac5f7b129e3887c8af7729795e85a0588007e5ac89b46549232d8f918eefd73e726cb450135314bfda419c030d0b6affe401ec1',
],
],
content: 'Hello world',
sig: 'cd4a3cd20dc61dcbc98324de561a07fd23b3d9702115920c0814b5fb822cc5b7c5bcdaf3fa326d24ed50c5b9c8214d66c75bae34e3a84c25e4d122afccb66eb6',
}),
).toEqual('86f0689bd48dcd19c67a19d994f938ee34f251d8c39976290955ff585f2db42e')
})
test('parse bad delegations', async () => {
expect(
getDelegator({
id: 'a080fd288b60ac2225ff2e2d815291bd730911e583e177302cc949a15dc2b2dc',
pubkey: '62903b1ff41559daf9ee98ef1ae67cc52f301bb5ce26d14baba3052f649c3f49',
created_at: 1660896109,
kind: 1,
tags: [
[
'delegation',
'86f0689bd48dcd19c67a19d994f938ee34f251d8c39976290955ff585f2db42f',
'kind=1&created_at>1640995200',
'c33c88ba78ec3c760e49db591ac5f7b129e3887c8af7729795e85a0588007e5ac89b46549232d8f918eefd73e726cb450135314bfda419c030d0b6affe401ec1',
],
],
content: 'Hello world',
sig: 'cd4a3cd20dc61dcbc98324de561a07fd23b3d9702115920c0814b5fb822cc5b7c5bcdaf3fa326d24ed50c5b9c8214d66c75bae34e3a84c25e4d122afccb66eb6',
}),
).toEqual(null)
expect(
getDelegator({
id: 'a080fd288b60ac2225ff2e2d815291bd730911e583e177302cc949a15dc2b2dc',
pubkey: '62903b1ff41559daf9ee98ef1ae67cc52f301bb5ce26d14baba3052f649c3f49',
created_at: 1660896109,
kind: 1,
tags: [
[
'delegation',
'86f0689bd48dcd19c67a19d994f938ee34f251d8c39976290955ff585f2db42e',
'kind=1&created_at>1740995200',
'c33c88ba78ec3c760e49db591ac5f7b129e3887c8af7729795e85a0588007e5ac89b46549232d8f918eefd73e726cb450135314bfda419c030d0b6affe401ec1',
],
],
content: 'Hello world',
sig: 'cd4a3cd20dc61dcbc98324de561a07fd23b3d9702115920c0814b5fb822cc5b7c5bcdaf3fa326d24ed50c5b9c8214d66c75bae34e3a84c25e4d122afccb66eb6',
}),
).toEqual(null)
expect(
getDelegator({
id: 'a080fd288b60ac2225ff2e2d815291bd730911e583e177302cc949a15dc2b2dc',
pubkey: '62903b1ff41559daf9ee98ef1ae67c152f301bb5ce26d14baba3052f649c3f49',
created_at: 1660896109,
kind: 1,
tags: [
[
'delegation',
'86f0689bd48dcd19c67a19d994f938ee34f251d8c39976290955ff585f2db42e',
'kind=1&created_at>1640995200',
'c33c88ba78ec3c760e49db591ac5f7b129e3887c8af7729795e85a0588007e5ac89b46549232d8f918eefd73e726cb450135314bfda419c030d0b6affe401ec1',
],
],
content: 'Hello world',
sig: 'cd4a3cd20dc61dcbc98324de561a07fd23b3d9702115920c0814b5fb822cc5b7c5bcdaf3fa326d24ed50c5b9c8214d66c75bae34e3a84c25e4d122afccb66eb6',
}),
).toEqual(null)
})
test('create and verify delegation', async () => {
let sk1 = generatePrivateKey()
let pk1 = getPublicKey(sk1)
let sk2 = generatePrivateKey()
let pk2 = getPublicKey(sk2)
let delegation = createDelegation(sk1, { pubkey: pk2, kind: 1 })
expect(delegation).toHaveProperty('from', pk1)
expect(delegation).toHaveProperty('to', pk2)
expect(delegation).toHaveProperty('cond', 'kind=1')
let event = buildEvent({
kind: 1,
tags: [['delegation', delegation.from, delegation.cond, delegation.sig]],
pubkey: pk2,
})
expect(getDelegator(event)).toEqual(pk1)
})

71
nip26.ts
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@ -1,71 +0,0 @@
import { schnorr } from '@noble/curves/secp256k1'
import { bytesToHex } from '@noble/hashes/utils'
import { sha256 } from '@noble/hashes/sha256'
import { utf8Encoder } from './utils.ts'
import { getPublicKey } from './keys.ts'
import type { Event } from './event.ts'
export type Parameters = {
pubkey: string // the key to whom the delegation will be given
kind?: number
until?: number // delegation will only be valid until this date
since?: number // delegation will be valid from this date on
}
export type Delegation = {
from: string // the pubkey who signed the delegation
to: string // the pubkey that is allowed to use the delegation
cond: string // the string of conditions as they should be included in the event tag
sig: string
}
export function createDelegation(privateKey: string, parameters: Parameters): Delegation {
let conditions = []
if ((parameters.kind || -1) >= 0) conditions.push(`kind=${parameters.kind}`)
if (parameters.until) conditions.push(`created_at<${parameters.until}`)
if (parameters.since) conditions.push(`created_at>${parameters.since}`)
let cond = conditions.join('&')
if (cond === '') throw new Error('refusing to create a delegation without any conditions')
let sighash = sha256(utf8Encoder.encode(`nostr:delegation:${parameters.pubkey}:${cond}`))
let sig = bytesToHex(schnorr.sign(sighash, privateKey))
return {
from: getPublicKey(privateKey),
to: parameters.pubkey,
cond,
sig,
}
}
export function getDelegator(event: Event<number>): string | null {
// find delegation tag
let tag = event.tags.find(tag => tag[0] === 'delegation' && tag.length >= 4)
if (!tag) return null
let pubkey = tag[1]
let cond = tag[2]
let sig = tag[3]
// check conditions
let conditions = cond.split('&')
for (let i = 0; i < conditions.length; i++) {
let [key, operator, value] = conditions[i].split(/\b/)
// the supported conditions are just 'kind' and 'created_at' for now
if (key === 'kind' && operator === '=' && event.kind === parseInt(value)) continue
else if (key === 'created_at' && operator === '<' && event.created_at < parseInt(value)) continue
else if (key === 'created_at' && operator === '>' && event.created_at > parseInt(value)) continue
else return null // invalid condition
}
// check signature
let sighash = sha256(utf8Encoder.encode(`nostr:delegation:${event.pubkey}:${cond}`))
if (!schnorr.verify(sig, sighash, pubkey)) return null
return pubkey
}

5
package.json
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@ -94,11 +94,6 @@
"require": "./lib/cjs/nip25.js",
"types": "./lib/types/nip25.d.ts"
},
"./nip26": {
"import": "./lib/esm/nip26.js",
"require": "./lib/cjs/nip26.js",
"types": "./lib/types/nip26.d.ts"
},
"./nip27": {
"import": "./lib/esm/nip27.js",
"require": "./lib/cjs/nip27.js",