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toolkit/packages/oidc-client/src/main.ts

84 lines
2.4 KiB
TypeScript

import * as core from '@actions/core'
import * as actions_http_client from '@actions/http-client'
import {
createHttpClient,
isSuccessStatusCode,
getApiVersion
} from './internal/utils'
import jwt_decode from 'jwt-decode'
import {getIDTokenFromEnv, getIDTokenUrl} from './internal/config-variables'
export async function getIDToken(audience: string): Promise<string> {
try {
//Check if id token is stored in environment variable
let id_token: string = getIDTokenFromEnv()
if (id_token !== undefined) {
const secondsSinceEpoch = Math.round(Date.now() / 1000)
const id_token_json: any = jwt_decode(id_token)
if ('exp' in id_token_json) {
if (id_token_json['exp'] - secondsSinceEpoch > 300) {
// Expiry time is more than 5 mins
return id_token
}
} else {
throw new Error('Expiry time not defined in ID Token')
}
}
// New ID Token is requested from action service
let id_token_url: string = getIDTokenUrl()
if (id_token_url === undefined) {
throw new Error(`ID Token URL not found`)
}
id_token_url = id_token_url + '?api-version=' + getApiVersion()
core.debug(`ID token url is ${id_token_url}`)
const httpclient = createHttpClient()
if (httpclient === undefined) {
throw new Error(`Failed to get Httpclient `)
}
core.debug(`Httpclient created ${httpclient} `) // debug is only output if you set the secret `ACTIONS_RUNNER_DEBUG` to true
const additionalHeaders = {
[actions_http_client.Headers.ContentType]:
actions_http_client.MediaTypes.ApplicationJson
}
const data: string = JSON.stringify({aud: audience})
const response = await httpclient.post(
id_token_url,
data,
additionalHeaders
)
if (!isSuccessStatusCode(response.message.statusCode)) {
throw new Error(
`Failed to get ID Token. Error message :${response.message.statusMessage} `
)
}
const body: string = await response.readBody()
const val = JSON.parse(body)
id_token = val['value']
if (id_token === undefined) {
throw new Error(`Not able to fetch the ID token`)
}
// Save ID Token in Env Variable
core.exportVariable('OIDC_TOKEN_ID', id_token)
return id_token
} catch (error) {
core.setFailed(error.message)
return error.message
}
}
//module.exports.getIDToken = getIDToken
//getIDToken('ghactions')