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'use strict'
var fs = require('fs')
var qs = require('querystring')
var validate = require('har-validator')
var extend = require('extend')
function Har (request) {
this.request = request
}
Har.prototype.reducer = function (obj, pair) {
// new property ?
if (obj[pair.name] === undefined) {
obj[pair.name] = pair.value
return obj
}
// existing? convert to array
var arr = [
obj[pair.name],
pair.value
]
obj[pair.name] = arr
return obj
}
Har.prototype.prep = function (data) {
// construct utility properties
data.queryObj = {}
data.headersObj = {}
data.postData.jsonObj = false
data.postData.paramsObj = false
// construct query objects
if (data.queryString && data.queryString.length) {
data.queryObj = data.queryString.reduce(this.reducer, {})
}
// construct headers objects
if (data.headers && data.headers.length) {
// loweCase header keys
data.headersObj = data.headers.reduceRight(function (headers, header) {
headers[header.name] = header.value
return headers
}, {})
}
// construct Cookie header
if (data.cookies && data.cookies.length) {
var cookies = data.cookies.map(function (cookie) {
return cookie.name + '=' + cookie.value
})
if (cookies.length) {
data.headersObj.cookie = cookies.join('; ')
}
}
// prep body
function some (arr) {
return arr.some(function (type) {
return data.postData.mimeType.indexOf(type) === 0
})
}
if (some([
'multipart/mixed',
'multipart/related',
'multipart/form-data',
'multipart/alternative'])) {
// reset values
data.postData.mimeType = 'multipart/form-data'
} else if (some([
'application/x-www-form-urlencoded'])) {
if (!data.postData.params) {
data.postData.text = ''
} else {
data.postData.paramsObj = data.postData.params.reduce(this.reducer, {})
// always overwrite
data.postData.text = qs.stringify(data.postData.paramsObj)
}
} else if (some([
'text/json',
'text/x-json',
'application/json',
'application/x-json'])) {
data.postData.mimeType = 'application/json'
if (data.postData.text) {
try {
data.postData.jsonObj = JSON.parse(data.postData.text)
} catch (e) {
this.request.debug(e)
// force back to text/plain
data.postData.mimeType = 'text/plain'
}
}
}
return data
}
Har.prototype.options = function (options) {
// skip if no har property defined
if (!options.har) {
return options
}
var har = {}
extend(har, options.har)
// only process the first entry
if (har.log && har.log.entries) {
har = har.log.entries[0]
}
// add optional properties to make validation successful
har.url = har.url || options.url || options.uri || options.baseUrl || '/'
har.httpVersion = har.httpVersion || 'HTTP/1.1'
har.queryString = har.queryString || []
har.headers = har.headers || []
har.cookies = har.cookies || []
har.postData = har.postData || {}
har.postData.mimeType = har.postData.mimeType || 'application/octet-stream'
har.bodySize = 0
har.headersSize = 0
har.postData.size = 0
if (!validate.request(har)) {
return options
}
// clean up and get some utility properties
var req = this.prep(har)
// construct new options
if (req.url) {
options.url = req.url
}
if (req.method) {
options.method = req.method
}
if (Object.keys(req.queryObj).length) {
options.qs = req.queryObj
}
if (Object.keys(req.headersObj).length) {
options.headers = req.headersObj
}
function test (type) {
return req.postData.mimeType.indexOf(type) === 0
}
if (test('application/x-www-form-urlencoded')) {
options.form = req.postData.paramsObj
} else if (test('application/json')) {
if (req.postData.jsonObj) {
options.body = req.postData.jsonObj
options.json = true
}
} else if (test('multipart/form-data')) {
options.formData = {}
req.postData.params.forEach(function (param) {
var attachment = {}
if (!param.fileName && !param.fileName && !param.contentType) {
options.formData[param.name] = param.value
return
}
// attempt to read from disk!
if (param.fileName && !param.value) {
attachment.value = fs.createReadStream(param.fileName)
} else if (param.value) {
attachment.value = param.value
}
if (param.fileName) {
attachment.options = {
filename: param.fileName,
contentType: param.contentType ? param.contentType : null
}
}
options.formData[param.name] = attachment
})
} else {
if (req.postData.text) {
options.body = req.postData.text
}
}
return options
}
exports.Har = Har