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import zlib from 'zlib'
import path from 'path'
import request from 'request'
import changeCase from 'change-case'
import { createHMAC, getSauceEndpoint, toString, getParameters } from './utils'
import {
PROTOCOL_MAP, DEFAULT_OPTIONS, SYMBOL_INSPECT,
SYMBOL_TOSTRING, SYMBOL_ITERATOR, TO_STRING_TAG
} from './constants'
export default class SauceLabs {
constructor (options) {
this._options = Object.assign({}, DEFAULT_OPTIONS, options)
this.username = this._options.user
this._accessKey = this._options.key
this._auth = {
user: this.username,
pass: this._accessKey
}
/**
* public fields
*/
this.region = this._options.region
this.headless = this._options.headless
return new Proxy({}, { get: ::this.get })
}
get (obj, propName) {
/**
* print to string output
* https://nodejs.org/api/util.html#util_util_inspect_custom
*/
if (propName === SYMBOL_INSPECT || propName === 'inspect') {
return () => toString(this)
}
/**
* print to string tag
* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag
*/
if (propName === SYMBOL_TOSTRING) {
return TO_STRING_TAG
}
/**
* return instance iterator
* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/iterator
*/
if (propName === SYMBOL_ITERATOR) {
return
}
/**
* allow to return publicly registered class properties
*/
if (this[propName]) {
return !propName.startsWith('_') ? this[propName] : undefined
}
if (!PROTOCOL_MAP.has(propName)) {
/**
* just return if propName is a symbol (Node 8 and lower)
*/
if (typeof propName !== 'string') {
return
}
throw new Error(`Couldn't find API endpoint for command "${propName}"`)
}
/**
* handle special commands not defined in the protocol
*/
if (propName === 'downloadJobAsset') {
return ::this._downloadJobAsset
}
return (...args) => {
const { description, method, endpoint, host, basePath } = PROTOCOL_MAP.get(propName)
const params = getParameters(description.parameters)
/**
* validate required url params
*/
let url = endpoint
for (const [i, urlParam] of Object.entries(params.filter(p => p.in === 'path'))) {
const param = args[i]
const type = urlParam.type.replace('integer', 'number')
if (typeof param !== type) {
throw new Error(`Expected parameter for url param '${urlParam.name}' from type '${type}', found '${typeof param}'`)
}
url = url.replace(`{${urlParam.name}}`, param)
}
/**
* validate required options
*/
const bodyMap = new Map()
const options = args.slice(params.filter(p => p.required).length)[0] || {}
for (const optionParam of params.filter(p => p.in === 'query')) {
const expectedType = optionParam.type.replace('integer', 'number')
const option = options[changeCase.camelCase(optionParam.name)]
const isRequired = Boolean(optionParam.required) || (typeof optionParam.required === 'undefined' && typeof optionParam.default === 'undefined')
if ((isRequired || option) && (!option || typeof option !== expectedType)) {
throw new Error(`Expected parameter for option '${optionParam.name}' from type '${expectedType}', found '${typeof option}'`)
}
if (option) {
bodyMap.set(optionParam.name, option)
}
}
/**
* convert map into json object
*/
const body = [...bodyMap.entries()].reduce((e, [k, v]) => {
e[k] = v
return e
}, {})
/**
* make request
*/
const uri = getSauceEndpoint(host + basePath, this._options.region, this._options.headless) + url
return new Promise((resolve, reject) => request({
uri,
method: method.toUpperCase(),
[method === 'post' ? 'json' : 'qs']: body,
json: true,
auth: this._auth
}, (err, response, body) => {
/* istanbul ignore if */
if (err) {
return reject(err)
}
/* istanbul ignore if */
if (response.statusCode !== 200) {
return reject(new Error((body && body.message) || `Unknown Error (${response.statusCode})`))
}
return resolve(body)
}))
}
}
async _downloadJobAsset (jobId, assetName, downloadPath) {
/**
* check job id
*/
if (typeof jobId !== 'string' || typeof assetName !== 'string') {
throw new Error('You need to define a job id and the file name of the asset as a string')
}
const hmac = await createHMAC(this.username, this._accessKey, jobId)
const host = getSauceEndpoint('saucelabs.com', this._options.region, this._options.headless, 'https://assets.')
return new Promise((resolve, reject) => {
const req = request({
method: 'GET',
uri: `${host}/jobs/${jobId}/${assetName}?ts=${Date.now()}&auth=${hmac}`
}, (err, res, body) => {
/**
* check if request was successful
*/
if (err) {
return reject(err)
}
/**
* check if we received the asset
*/
if (res.statusCode !== 200) {
const reason = JSON.parse(body).message || 'unknown'
return reject(new Error(`There was an error downloading asset ${assetName}, status code: ${res.statusCode}, reason: ${reason}`))
}
/**
* parse asset as json if proper content type is given
*/
Iif (res.headers['content-type'] === 'application/json') {
try {
body = JSON.parse(body)
} catch (e) {
// do nothing
}
}
return resolve(body)
})
/**
* only pipe asset to file if path is given
*/
if (typeof downloadPath === 'string') {
const fd = fs.createWriteStream(path.resolve(process.cwd(), downloadPath))
/**
* unzip gzipped logs
* ToDo: this only affects tracing logs which are uploaded gzipped,
* there should be seperate api definition for extended debugging
*/
if (assetName.endsWith('.gz')) {
const gunzip = zlib.createGunzip()
req.pipe(gunzip).pipe(fd)
} else {
req.pipe(fd)
}
}
})
}
}
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