Files
smesh/src/services/media-upload.service.ts
2025-05-23 22:47:31 +08:00

100 lines
2.7 KiB
TypeScript

import { simplifyUrl } from '@/lib/url'
import dayjs from 'dayjs'
import { kinds } from 'nostr-tools'
import { z } from 'zod'
import client from './client.service'
import storage from './local-storage.service'
class MediaUploadService {
static instance: MediaUploadService
private service: string = storage.getMediaUploadService()
private serviceUploadUrlMap = new Map<string, string | undefined>()
private imetaTagMap = new Map<string, string[]>()
constructor() {
if (!MediaUploadService.instance) {
MediaUploadService.instance = this
}
return MediaUploadService.instance
}
getService() {
return this.service
}
setService(service: string) {
this.service = service
storage.setMediaUploadService(service)
}
async upload(file: File) {
let uploadUrl = this.serviceUploadUrlMap.get(this.service)
if (!uploadUrl) {
const response = await fetch(`${this.service}/.well-known/nostr/nip96.json`)
if (!response.ok) {
throw new Error(
`${simplifyUrl(this.service)} does not work, please try another service in your settings`
)
}
const data = await response.json()
uploadUrl = data?.api_url
if (!uploadUrl) {
throw new Error(
`${simplifyUrl(this.service)} does not work, please try another service in your settings`
)
}
this.serviceUploadUrlMap.set(this.service, uploadUrl)
}
const formData = new FormData()
formData.append('file', file)
const auth = await this.signHttpAuth(uploadUrl, 'POST')
const response = await fetch(uploadUrl, {
method: 'POST',
body: formData,
headers: {
Authorization: auth
}
})
if (!response.ok) {
throw new Error(response.status.toString() + ' ' + response.statusText)
}
const data = await response.json()
const tags = z.array(z.array(z.string())).parse(data.nip94_event?.tags ?? [])
const url = tags.find(([tagName]) => tagName === 'url')?.[1]
if (url) {
this.imetaTagMap.set(url, ['imeta', ...tags.map(([n, v]) => `${n} ${v}`)])
return { url: url, tags }
} else {
throw new Error('No url found')
}
}
getImetaTagByUrl(url: string) {
return this.imetaTagMap.get(url)
}
async signHttpAuth(url: string, method: string) {
if (!client.signer) {
throw new Error('No signer found')
}
const event = await client.signer.signEvent({
content: '',
kind: kinds.HTTPAuth,
created_at: dayjs().unix(),
tags: [
['u', url],
['method', method]
]
})
return 'Nostr ' + btoa(JSON.stringify(event))
}
}
const instance = new MediaUploadService()
export default instance