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swagger.go
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swagger.go
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package fiberSwagger
import (
"html/template"
"net/http"
"path/filepath"
"regexp"
"sync"
"github.com/gofiber/fiber/v2"
swaggerFiles "github.com/swaggo/files"
"github.com/swaggo/swag"
"github.com/valyala/fasthttp/fasthttpadaptor"
)
// Config stores fiberSwagger configuration variables.
type Config struct {
// The url pointing to API definition (normally swagger.json or swagger.yaml). Default is `mockedSwag.json`.
URL string
InstanceName string
DocExpansion string
DomID string
DeepLinking bool
PersistAuthorization bool
}
// 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
}
}
// InstanceName set the instance name that was used to generate the swagger documents
// Defaults to swag.Name ("swagger").
func InstanceName(name string) func(*Config) {
return func(c *Config) {
c.InstanceName = name
}
}
// PersistAuthorization Persist authorization information over browser close/refresh.
// Defaults to false.
func PersistAuthorization(persistAuthorization bool) func(c *Config) {
return func(c *Config) {
c.PersistAuthorization = persistAuthorization
}
}
// WrapHandler wraps swaggerFiles.Handler and returns fiber.Handler
var WrapHandler = FiberWrapHandler()
// FiberWrapHandler wraps `http.Handler` into `fiber.Handler`.
func FiberWrapHandler(configFns ...func(c *Config)) fiber.Handler {
var once sync.Once
handler := swaggerFiles.Handler
config := Config{
URL: "doc.json",
DocExpansion: "list",
DomID: "swagger-ui",
InstanceName: swag.Name,
DeepLinking: true,
}
for _, configFn := range configFns {
configFn(&config)
}
// create a template with name
index, _ := template.New("swagger_index.html").Parse(indexTemplate)
var re = regexp.MustCompile(`^(.*/)([^?].*)?[?|.]*$`)
return func(ctx *fiber.Ctx) error {
matches := re.FindStringSubmatch(string(ctx.Request().URI().Path()))
path := matches[2]
once.Do(func() {
handler.Prefix = matches[1]
})
fileExt := filepath.Ext(path)
switch path {
case "":
return ctx.Redirect(filepath.Join(handler.Prefix, "index.html"), fiber.StatusMovedPermanently)
case "index.html":
ctx.Type(fileExt[0:], "utf-8")
return index.Execute(ctx, config)
case "doc.json":
doc, err := swag.ReadDoc(config.InstanceName)
if err != nil {
_, err := ctx.Status(http.StatusInternalServerError).WriteString(http.StatusText(http.StatusInternalServerError))
return err
}
ctx.Type(fileExt[0:], "utf-8")
return ctx.SendString(doc)
default:
fasthttpadaptor.NewFastHTTPHandler(handler)(ctx.Context())
switch fileExt {
case ".css":
ctx.Type(fileExt[0:], "utf-8")
case ".png", ".js":
ctx.Type(fileExt[0:])
}
return nil
}
}
}
const indexTemplate = `<!-- 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}}",
persistAuthorization: {{.PersistAuthorization}},
validatorUrl: null,
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIStandalonePreset
],
plugins: [
SwaggerUIBundle.plugins.DownloadUrl
],
layout: "StandaloneLayout"
})
window.ui = ui
}
</script>
</body>
</html>
`