2019-06-24 17:36:42 -08:00
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package saasSwagger
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import (
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"context"
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"html/template"
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"net/http"
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"regexp"
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"strings"
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"geeks-accelerator/oss/saas-starter-kit/example-project/internal/platform/web"
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"github.com/pkg/errors"
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"github.com/swaggo/files"
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"github.com/swaggo/swag"
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)
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var (
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// ErrNotFound used when a file doesn't exist.
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ErrNotFound = errors.New("File not found")
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)
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// Config stores echoSwagger configuration variables.
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type Config struct {
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//The url pointing to API definition (normally swagger.json or swagger.yaml). Default is `doc.json`.
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URL string
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}
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// URL presents the url pointing to API definition (normally swagger.json or swagger.yaml).
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func URL(url string) func(c *Config) {
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return func(c *Config) {
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c.URL = url
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}
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}
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// WrapHandler wraps swaggerFiles.Handler and returns web.Handler
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var WrapHandler = SaasWrapHandler()
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// SaasWrapHandler wraps `http.Handler` into `web.Handler`.
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func SaasWrapHandler(confs ...func(c *Config)) web.Handler {
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handler := swaggerFiles.Handler
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config := &Config{
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URL: "doc.json",
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}
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for _, c := range confs {
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c(config)
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}
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// create a template with name
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t := template.New("swagger_index.html")
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index, _ := t.Parse(indexTempl)
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type pro struct {
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Host string
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}
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var re = regexp.MustCompile(`(.*)(index\.html|doc\.json|favicon-16x16\.png|favicon-32x32\.png|/oauth2-redirect\.html|swagger-ui\.css|swagger-ui\.css\.map|swagger-ui\.js|swagger-ui\.js\.map|swagger-ui-bundle\.js|swagger-ui-bundle\.js\.map|swagger-ui-standalone-preset\.js|swagger-ui-standalone-preset\.js\.map)[\?|.]*`)
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// Create the handler that will be attached in the middleware chain.
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h := func(ctx context.Context, w http.ResponseWriter, r *http.Request, params map[string]string) error {
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var (
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path string
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prefix string
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)
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matches := re.FindStringSubmatch(r.RequestURI)
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if len(matches) == 3 {
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path = matches[2]
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prefix = matches[1]
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} else if len(matches) > 0 {
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err := errors.WithMessagef(ErrNotFound, "page %s not found", r.RequestURI)
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return web.NewRequestError(err, http.StatusNotFound)
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}
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// Default to index page.
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if path == "" {
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path = "index.html"
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prefix = r.RequestURI
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}
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// Set the http prefix.
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handler.Prefix = prefix
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switch path {
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case "index.html":
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index.Execute(w, config)
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case "doc.json":
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doc, err := swag.ReadDoc()
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if err != nil {
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return web.NewRequestError(err, http.StatusInternalServerError)
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}
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2019-06-24 22:41:21 -08:00
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return web.RespondJson(ctx, w, []byte(doc), http.StatusOK)
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2019-06-24 17:36:42 -08:00
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default:
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if strings.HasSuffix(path, ".html") {
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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} else if strings.HasSuffix(path, ".css") {
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w.Header().Set("Content-Type", "text/css; charset=utf-8")
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} else if strings.HasSuffix(path, ".js") {
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w.Header().Set("Content-Type", "application/javascript")
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} else if strings.HasSuffix(path, ".json") {
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w.Header().Set("Content-Type", "application/json")
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}
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handler.ServeHTTP(w, r)
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}
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return nil
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}
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return h
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}
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const indexTempl = `<!-- HTML for static distribution bundle build -->
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Swagger UI</title>
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<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,700|Source+Code+Pro:300,600|Titillium+Web:400,600,700" rel="stylesheet">
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<link rel="stylesheet" type="text/css" href="./swagger-ui.css" >
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<link rel="icon" type="image/png" href="./favicon-32x32.png" sizes="32x32" />
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<link rel="icon" type="image/png" href="./favicon-16x16.png" sizes="16x16" />
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<style>
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html
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{
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box-sizing: border-box;
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overflow: -moz-scrollbars-vertical;
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overflow-y: scroll;
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}
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*,
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*:before,
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*:after
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{
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box-sizing: inherit;
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}
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body {
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margin:0;
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background: #fafafa;
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}
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</style>
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</head>
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<body>
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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="position:absolute;width:0;height:0">
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<defs>
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<symbol viewBox="0 0 20 20" id="unlocked">
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<path d="M15.8 8H14V5.6C14 2.703 12.665 1 10 1 7.334 1 6 2.703 6 5.6V6h2v-.801C8 3.754 8.797 3 10 3c1.203 0 2 .754 2 2.199V8H4c-.553 0-1 .646-1 1.199V17c0 .549.428 1.139.951 1.307l1.197.387C5.672 18.861 6.55 19 7.1 19h5.8c.549 0 1.428-.139 1.951-.307l1.196-.387c.524-.167.953-.757.953-1.306V9.199C17 8.646 16.352 8 15.8 8z"></path>
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</symbol>
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<symbol viewBox="0 0 20 20" id="locked">
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<path d="M15.8 8H14V5.6C14 2.703 12.665 1 10 1 7.334 1 6 2.703 6 5.6V8H4c-.553 0-1 .646-1 1.199V17c0 .549.428 1.139.951 1.307l1.197.387C5.672 18.861 6.55 19 7.1 19h5.8c.549 0 1.428-.139 1.951-.307l1.196-.387c.524-.167.953-.757.953-1.306V9.199C17 8.646 16.352 8 15.8 8zM12 8H8V5.199C8 3.754 8.797 3 10 3c1.203 0 2 .754 2 2.199V8z"/>
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</symbol>
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<symbol viewBox="0 0 20 20" id="close">
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<path d="M14.348 14.849c-.469.469-1.229.469-1.697 0L10 11.819l-2.651 3.029c-.469.469-1.229.469-1.697 0-.469-.469-.469-1.229 0-1.697l2.758-3.15-2.759-3.152c-.469-.469-.469-1.228 0-1.697.469-.469 1.228-.469 1.697 0L10 8.183l2.651-3.031c.469-.469 1.228-.469 1.697 0 .469.469.469 1.229 0 1.697l-2.758 3.152 2.758 3.15c.469.469.469 1.229 0 1.698z"/>
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</symbol>
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<symbol viewBox="0 0 20 20" id="large-arrow">
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<path d="M13.25 10L6.109 2.58c-.268-.27-.268-.707 0-.979.268-.27.701-.27.969 0l7.83 7.908c.268.271.268.709 0 .979l-7.83 7.908c-.268.271-.701.27-.969 0-.268-.269-.268-.707 0-.979L13.25 10z"/>
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</symbol>
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<symbol viewBox="0 0 20 20" id="large-arrow-down">
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<path d="M17.418 6.109c.272-.268.709-.268.979 0s.271.701 0 .969l-7.908 7.83c-.27.268-.707.268-.979 0l-7.908-7.83c-.27-.268-.27-.701 0-.969.271-.268.709-.268.979 0L10 13.25l7.418-7.141z"/>
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</symbol>
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<symbol viewBox="0 0 24 24" id="jump-to">
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<path d="M19 7v4H5.83l3.58-3.59L8 6l-6 6 6 6 1.41-1.41L5.83 13H21V7z"/>
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</symbol>
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<symbol viewBox="0 0 24 24" id="expand">
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<path d="M10 18h4v-2h-4v2zM3 6v2h18V6H3zm3 7h12v-2H6v2z"/>
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</symbol>
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</defs>
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</svg>
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<div id="swagger-ui"></div>
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<script src="./swagger-ui-bundle.js"> </script>
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<script src="./swagger-ui-standalone-preset.js"> </script>
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<script>
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window.onload = function() {
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// Build a system
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const ui = SwaggerUIBundle({
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url: "{{.URL}}",
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dom_id: '#swagger-ui',
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validatorUrl: null,
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presets: [
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SwaggerUIBundle.presets.apis,
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SwaggerUIStandalonePreset
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],
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plugins: [
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SwaggerUIBundle.plugins.DownloadUrl
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],
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layout: "StandaloneLayout"
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})
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window.ui = ui
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}
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</script>
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</body>
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</html>
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`
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