feat(opentimestamps): updates utils and adds comments

This commit is contained in:
eugene 2024-10-07 17:18:06 +02:00
parent 85bf907f54
commit a2138f1de1

View File

@ -1,13 +1,8 @@
import {
Timestamp,
TimestampUpgradeResponse,
TimestampUpgradeVerifyResponse
} from '../types'
import { retry, retryAll } from './retry.ts'
import { OpenTimestamp, OpenTimestampUpgradeVerifyResponse } from '../types'
import { retry } from './retry.ts'
import { bytesToHex } from '@noble/hashes/utils'
import { utf8Encoder } from 'nostr-tools/utils'
import { hexStringToUint8Array } from './string.ts'
import { isPromiseFulfilled } from './utils.ts'
/**
* Generates a timestamp for the provided nostr event ID.
@ -15,10 +10,10 @@ import { isPromiseFulfilled } from './utils.ts'
*/
export const generateTimestamp = async (
nostrId: string
): Promise<Timestamp | undefined> => {
): Promise<OpenTimestamp | undefined> => {
try {
return {
timestamp: await retry(() => timestamp(nostrId)),
value: await retry(() => timestamp(nostrId)),
nostrId: nostrId
}
} catch (error) {
@ -27,37 +22,31 @@ export const generateTimestamp = async (
}
}
/**
* Attempts to upgrade (i.e. add Bitcoin blockchain attestations) and verify the provided timestamp.
* Returns the same timestamp, alongside additional information required to decide if any further
* timestamp updates are required.
* @param timestamp
*/
export const upgradeAndVerifyTimestamp = async (
timestamp: Timestamp
): Promise<TimestampUpgradeVerifyResponse> => {
timestamp: OpenTimestamp
): Promise<OpenTimestampUpgradeVerifyResponse> => {
const upgradedResult = await retry(() => upgrade(timestamp))
const verifiedResult = await verify(upgradedResult)
console.log('verifiedResult: ', verifiedResult)
return verifiedResult
}
export const upgradeTimestamps = async (
timestamps: Timestamp[]
): Promise<TimestampUpgradeResponse[]> => {
const resolved = await retryAll(timestamps.map((t) => () => upgrade(t)))
return resolved.filter(isPromiseFulfilled).map((res) => res.value)
}
export const verifyTimestamps = async (timestamps: Timestamp[]) => {
const settledResults = await Promise.allSettled(
timestamps.map(async (timestamp) => verify(timestamp))
)
return settledResults.filter(isPromiseFulfilled).map((res) => res.value)
return await verify(upgradedResult)
}
/**
* Attempts to upgrade a timestamp. If an upgrade is available,
* it will add new data to detachedTimestamp.
* The upgraded flag indicates if an upgrade has been performed.
* @param t - timestamp
*/
const upgrade = async (
t: Timestamp
): Promise<TimestampUpgradeVerifyResponse> => {
let detachedTimestamp =
t: OpenTimestamp
): Promise<OpenTimestampUpgradeVerifyResponse> => {
const detachedTimestamp =
window.OpenTimestamps.DetachedTimestampFile.deserialize(
hexStringToUint8Array(t.timestamp)
hexStringToUint8Array(t.value)
)
const changed: boolean =
@ -71,29 +60,32 @@ const upgrade = async (
}
return {
value,
upgraded: true,
isComplete: detachedTimestamp.timestamp.isTimestampComplete()
timestamp: value,
upgraded: true
}
}
return {
value: t,
upgraded: false,
isComplete: detachedTimestamp.timestamp.isTimestampComplete()
timestamp: t,
upgraded: false
}
}
/**
* Attempts to verify a timestamp. If verification is available,
* it will be included in the returned object.
* @param t - timestamp
*/
export const verify = async (
t: TimestampUpgradeVerifyResponse
): Promise<TimestampUpgradeVerifyResponse> => {
t: OpenTimestampUpgradeVerifyResponse
): Promise<OpenTimestampUpgradeVerifyResponse> => {
const detachedNostrId = window.OpenTimestamps.DetachedTimestampFile.fromBytes(
new window.OpenTimestamps.Ops.OpSHA256(),
utf8Encoder.encode(t.value.nostrId)
utf8Encoder.encode(t.timestamp.nostrId)
)
let detachedTimestamp =
const detachedTimestamp =
window.OpenTimestamps.DetachedTimestampFile.deserialize(
hexStringToUint8Array(t.value.timestamp)
hexStringToUint8Array(t.timestamp.value)
)
const res = await window.OpenTimestamps.verify(
@ -108,6 +100,10 @@ export const verify = async (
}
}
/**
* Timestamps a nostrId.
* @param nostrId
*/
const timestamp = async (nostrId: string): Promise<string> => {
const detachedTimestamp =
window.OpenTimestamps.DetachedTimestampFile.fromBytes(