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swagger.go
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package httpSwagger
import (
"html/template"
"net/http"
"regexp"
swaggerFiles "github.com/swaggo/files"
"github.com/swaggo/swag"
)
// WrapHandler wraps swaggerFiles.Handler and returns http.HandlerFunc
var WrapHandler = Handler()
// Config stores httpSwagger configuration variables.
type Config struct {
//The url pointing to API definition (normally swagger.json or swagger.yaml). Default is `doc.json`.
URL string
DeepLinking bool
DocExpansion string
DomID string
}
// URL presents the url pointing to API definition (normally swagger.json or swagger.yaml).
func URL(url string) func(c *Config) {
return func(c *Config) {
c.URL = url
}
}
// DeepLinking true, false
func DeepLinking(deepLinking bool) func(c *Config) {
return func(c *Config) {
c.DeepLinking = deepLinking
}
}
// DocExpansion list, full, none
func DocExpansion(docExpansion string) func(c *Config) {
return func(c *Config) {
c.DocExpansion = docExpansion
}
}
// DomID #swagger-ui
func DomID(domID string) func(c *Config) {
return func(c *Config) {
c.DomID = domID
}
}
// Handler wraps `http.Handler` into `http.HandlerFunc`.
func Handler(configFns ...func(*Config)) http.HandlerFunc {
config := &Config{
URL: "doc.json",
DeepLinking: true,
DocExpansion: "list",
DomID: "#swagger-ui",
}
for _, configFn := range configFns {
configFn(config)
}
//create a template with name
t := template.New("swagger_index.html")
index, _ := t.Parse(indexTempl)
var re = regexp.MustCompile(`^(.*/)([^?].*)?[?|.]*$`)
return func(w http.ResponseWriter, r *http.Request) {
matches := re.FindStringSubmatch(r.RequestURI)
var path, prefix string
if len(matches) > 2 {
path = matches[2]
prefix = matches[1]
}
h := swaggerFiles.Handler
h.Prefix = prefix
switch path {
case "index.html":
_ = index.Execute(w, config)
case "doc.json":
w.Header().Set("Content-Type", "application/json; charset=utf-8")
doc, err := swag.ReadDoc()
if err != nil {
panic(err)
}
_, _ = w.Write([]byte(doc))
case "":
http.Redirect(w, r, prefix+"index.html", 301)
default:
h.ServeHTTP(w, r)
}
return
}
}
const indexTempl = `<!-- HTML for static distribution bundle build -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Swagger UI</title>
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,700|Source+Code+Pro:300,600|Titillium+Web:400,600,700" rel="stylesheet">
<link rel="stylesheet" type="text/css" href="./swagger-ui.css" >
<link rel="icon" type="image/png" href="./favicon-32x32.png" sizes="32x32" />
<link rel="icon" type="image/png" href="./favicon-16x16.png" sizes="16x16" />
<style>
html
{
box-sizing: border-box;
overflow: -moz-scrollbars-vertical;
overflow-y: scroll;
}
*,
*:before,
*:after
{
box-sizing: inherit;
}
body {
margin:0;
background: #fafafa;
}
</style>
</head>
<body>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="position:absolute;width:0;height:0">
<defs>
<symbol viewBox="0 0 20 20" id="unlocked">
<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>
</symbol>
<symbol viewBox="0 0 20 20" id="locked">
<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"/>
</symbol>
<symbol viewBox="0 0 20 20" id="close">
<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"/>
</symbol>
<symbol viewBox="0 0 20 20" id="large-arrow">
<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"/>
</symbol>
<symbol viewBox="0 0 20 20" id="large-arrow-down">
<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"/>
</symbol>
<symbol viewBox="0 0 24 24" id="jump-to">
<path d="M19 7v4H5.83l3.58-3.59L8 6l-6 6 6 6 1.41-1.41L5.83 13H21V7z"/>
</symbol>
<symbol viewBox="0 0 24 24" id="expand">
<path d="M10 18h4v-2h-4v2zM3 6v2h18V6H3zm3 7h12v-2H6v2z"/>
</symbol>
</defs>
</svg>
<div id="swagger-ui"></div>
<script src="./swagger-ui-bundle.js"> </script>
<script src="./swagger-ui-standalone-preset.js"> </script>
<script>
window.onload = function() {
// Build a system
const ui = SwaggerUIBundle({
url: "{{.URL}}",
deepLinking: {{.DeepLinking}},
docExpansion: "{{.DocExpansion}}",
dom_id: "{{.DomID}}",
validatorUrl: null,
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIStandalonePreset
],
plugins: [
SwaggerUIBundle.plugins.DownloadUrl
],
layout: "StandaloneLayout"
})
window.ui = ui
}
</script>
</body>
</html>
`