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58 lines
1.4 KiB
JavaScript

import * as cookie from 'https://deno.land/std@0.188.0/http/cookie.ts'
export class Auth {
constructor({
baseUrl,
remoteBaseUrl,
giteaApiBaseUrl,
giteaWebBaseUrl,
giteaClientId,
giteaClientSecret
}) {
this.baseUrl = baseUrl
this.remoteBaseUrl = remoteBaseUrl
this.giteaApiBaseUrl = giteaApiBaseUrl
this.giteaWebBaseUrl = giteaWebBaseUrl
this.giteaClientId = giteaClientId
this.giteaClientSecret = giteaClientSecret
}
redirectUrl(state) {
const url = new URL(
this.giteaWebBaseUrl + '/login/oauth/authorize'
)
const search = new URLSearchParams()
search.set('response_type', 'code')
search.set('client_id', this.giteaClientId)
search.set(
'redirect_uri',
this.remoteBaseUrl + '/api/auth/callback'
)
search.set('state', state)
url.search = search.toString()
return url.toString()
}
buildState() {
const timestamp = new Date().valueOf()
const randomInt = Math.floor(Math.random() * 10000)
// TODO: sign
return `${randomInt}-${timestamp}`
}
async redirect(event) {
const state = this.buildState()
const url = this.redirectUrl(state)
const headers = new Headers({
Location: url
})
cookie.setCookie(headers, {
name: 'oauth.gitea.state',
value: state,
})
event.respondWith(new Response('', {
headers,
status: 302,
}))
}
}