doipjs/src/fetcher/xmpp.js
2021-03-25 15:37:30 +01:00

105 lines
2.7 KiB
JavaScript

/*
Copyright 2021 Yarmo Mackenbach
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
const jsdom = require('jsdom')
const { client, xml } = require('@xmpp/client')
const debug = require('@xmpp/debug')
let xmpp = null,
iqCaller = null
const xmppStart = async (service, username, password) => {
return new Promise((resolve, reject) => {
const xmpp = client({
service: service,
username: username,
password: password,
})
if (process.env.NODE_ENV !== 'production') {
debug(xmpp, true)
}
const { iqCaller } = xmpp
xmpp.start()
xmpp.on('online', (address) => {
console.log('online', address.toString())
resolve({ xmpp: xmpp, iqCaller: iqCaller })
})
xmpp.on('error', (error) => {
reject(error)
})
})
}
module.exports = async (id, data, opts) => {
let timeoutHandle
const timeoutPromise = new Promise((resolve, reject) => {
timeoutHandle = setTimeout(
() => reject(new Error('Request was timed out')),
5000
)
})
const fetchPromise = new Promise(async (resolve, reject) => {
if (!xmpp) {
const xmppStartRes = await xmppStart(
opts.service,
opts.username,
opts.password
)
xmpp = xmppStartRes.xmpp
iqCaller = xmppStartRes.iqCaller
}
const response = await iqCaller.request(
xml('iq', { type: 'get', to: id }, xml('vCard', 'vcard-temp')),
30 * 1000
)
const vcardRow = response.getChild('vCard', 'vcard-temp').toString()
const dom = new jsdom.JSDOM(vcardRow)
try {
let vcard
switch (data.toLowerCase()) {
case 'desc':
case 'note':
vcard = dom.window.document.querySelector('note text')
if (!vcard) {
vcard = dom.window.document.querySelector('DESC')
}
if (vcard) {
vcard = vcard.textContent
} else {
throw new Error('No DESC or NOTE field found in vCard')
}
break
default:
vcard = dom.window.document.querySelector(data).textContent
break
}
xmpp.stop()
resolve(vcard)
} catch (error) {
reject(error)
}
})
return Promise.race([fetchPromise, timeoutPromise]).then((result) => {
clearTimeout(timeoutHandle)
return result
})
}