'use strict'
var express = require('express')
var swaggerUi = require('swagger-ui-dist')
var favIconHtml = '' +
''
var swaggerInit = ''
var htmlTplString = `
<% title %>
<% favIconString %>
<% customJs %>
<% customCssUrl %>
`
var jsTplString = `
window.onload = function() {
// Build a system
var url = window.location.search.match(/url=([^&]+)/);
if (url && url.length > 1) {
url = decodeURIComponent(url[1]);
} else {
url = window.location.origin;
}
<% swaggerOptions %>
url = options.swaggerUrl || url
var urls = options.swaggerUrls
var customOptions = options.customOptions
var spec1 = options.swaggerDoc
var swaggerOptions = {
spec: spec1,
url: url,
urls: urls,
dom_id: '#swagger-ui',
deepLinking: true,
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIStandalonePreset
],
plugins: [
SwaggerUIBundle.plugins.DownloadUrl
],
layout: "StandaloneLayout"
}
for (var attrname in customOptions) {
swaggerOptions[attrname] = customOptions[attrname];
}
var ui = SwaggerUIBundle(swaggerOptions)
if (customOptions.oauth) {
ui.initOAuth(customOptions.oauth)
}
if (customOptions.authAction) {
ui.authActions.authorize(customOptions.authAction)
}
window.ui = ui
}
`
var generateHTML = function (swaggerDoc, opts, options, customCss, customfavIcon, swaggerUrl, customSiteTitle, _htmlTplString, _jsTplString) {
var isExplorer
var customJs
var swaggerUrls
var customCssUrl
if (opts && typeof opts === 'object') {
options = opts.swaggerOptions
customCss = opts.customCss
customJs = opts.customJs
customfavIcon = opts.customfavIcon
swaggerUrl = opts.swaggerUrl
swaggerUrls = opts.swaggerUrls
isExplorer = opts.explorer || !!swaggerUrls
customSiteTitle = opts.customSiteTitle
customCssUrl = opts.customCssUrl
} else {
//support legacy params based function
isExplorer = opts
}
options = options || {}
var explorerString = isExplorer ? '' : '.swagger-ui .topbar .download-url-wrapper { display: none }'
customCss = explorerString + ' ' + customCss || explorerString
customfavIcon = customfavIcon || false
customSiteTitle = customSiteTitle || 'Swagger UI'
_htmlTplString = _htmlTplString || htmlTplString
_jsTplString = _jsTplString || jsTplString
var favIconString = customfavIcon ? '' : favIconHtml
var htmlWithCustomCss = _htmlTplString.toString().replace('<% customCss %>', customCss)
var htmlWithFavIcon = htmlWithCustomCss.replace('<% favIconString %>', favIconString)
var htmlWithCustomJs = htmlWithFavIcon.replace('<% customJs %>', customJs ? `` : '')
var htmlWithCustomCssUrl = htmlWithCustomJs.replace('<% customCssUrl %>', customCssUrl ? `` : '')
var initOptions = {
swaggerDoc: swaggerDoc || undefined,
customOptions: options,
swaggerUrl: swaggerUrl || undefined,
swaggerUrls: swaggerUrls || undefined
}
swaggerInit = _jsTplString.toString().replace('<% swaggerOptions %>', stringify(initOptions))
return htmlWithCustomCssUrl.replace('<% title %>', customSiteTitle)
}
var setup = function (swaggerDoc, opts, options, customCss, customfavIcon, swaggerUrl, customSiteTitle) {
return function (req, res) {
if (req.swaggerDoc) {
var reqHtml = generateHTML(req.swaggerDoc, opts, options, customCss, customfavIcon, swaggerUrl, customSiteTitle, htmlTplString, jsTplString)
res.send(reqHtml)
} else {
var html = generateHTML(swaggerDoc, opts, options, customCss, customfavIcon, swaggerUrl, customSiteTitle, htmlTplString, jsTplString)
res.send(html)
}
}
}
function swaggerInitFn(req, res, next) {
if (req.url === '/package.json') {
res.sendStatus(404)
} else if (req.url === '/swagger-ui-init.js') {
res.set('Content-Type', 'application/javascript')
res.send(swaggerInit)
} else {
next()
}
}
var swaggerInitFunction = function (swaggerDoc, opts) {
var swaggerInitFile = jsTplString.toString().replace('<% swaggerOptions %>', stringify(opts))
return function (req, res, next) {
if (req.url === '/package.json') {
res.sendStatus(404)
} else if (req.url === '/swagger-ui-init.js') {
res.set('Content-Type', 'application/javascript')
res.send(swaggerInitFile)
} else {
next()
}
}
}
var swaggerAssetMiddleware = options => {
var opts = options || {}
opts.index = false
return express.static(swaggerUi.getAbsoluteFSPath(), opts)
}
var serveFiles = function (swaggerDoc, opts) {
opts = opts || {}
var initOptions = {
swaggerDoc: swaggerDoc || undefined,
customOptions: opts.swaggerOptions || {},
swaggerUrl: opts.swaggerUrl || {},
swaggerUrls: opts.swaggerUrls || undefined
}
var swaggerInitWithOpts = swaggerInitFunction(swaggerDoc, initOptions)
return [swaggerInitWithOpts, swaggerAssetMiddleware()]
}
var serve = [swaggerInitFn, swaggerAssetMiddleware()]
var serveWithOptions = options => [swaggerInitFn, swaggerAssetMiddleware(options)]
var stringify = function (obj, prop) {
var placeholder = '____FUNCTIONPLACEHOLDER____'
var fns = []
var json = JSON.stringify(obj, function (key, value) {
if (typeof value === 'function') {
fns.push(value)
return placeholder
}
return value
}, 2)
json = json.replace(new RegExp('"' + placeholder + '"', 'g'), function (_) {
return fns.shift()
})
return 'var options = ' + json + ';'
}
module.exports = {
setup: setup,
serve: serve,
serveWithOptions: serveWithOptions,
generateHTML: generateHTML,
serveFiles: serveFiles
}