handlers.go

package httpbin

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"strconv"
	"strings"
)

var acceptedMediaTypes = []string{
	"image/webp",
	"image/svg+xml",
	"image/jpeg",
	"image/png",
	"image/",
}

// Index renders an HTML index page
func (h *HTTPBin) Index(w http.ResponseWriter, r *http.Request) {
	w.Write(MustAsset("index.html"))
}

// FormsPost renders an HTML form that submits a request to the /post endpoint
func (h *HTTPBin) FormsPost(w http.ResponseWriter, r *http.Request) {
	w.Write(MustAsset("forms-post.html"))
}

// UTF8 renders an HTML encoding stress test
func (h *HTTPBin) UTF8(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	w.Write(MustAsset("utf8.html"))
}

// Get handles HTTP GET requests
func (h *HTTPBin) Get(w http.ResponseWriter, r *http.Request) {
	args, err := url.ParseQuery(r.URL.RawQuery)
	if err != nil {
		http.Error(w, fmt.Sprintf("error parsing query params: %s", err), http.StatusBadRequest)
		return
	}
	resp := &getResponse{
		Args:    args,
		Headers: r.Header,
		Origin:  getOrigin(r),
		URL:     getURL(r),
	}
	body, _ := json.Marshal(resp)
	writeJSON(w, body, http.StatusOK)
}

// RequestWithBody handles POST, PUT, and PATCH requests
func (h *HTTPBin) RequestWithBody(w http.ResponseWriter, r *http.Request) {
	args, err := url.ParseQuery(r.URL.RawQuery)
	if err != nil {
		http.Error(w, fmt.Sprintf("error parsing query params: %s", err), http.StatusBadRequest)
		return
	}

	resp := &bodyResponse{
		Args:    args,
		Headers: r.Header,
		Origin:  getOrigin(r),
		URL:     getURL(r),
	}

	err = parseBody(w, r, resp, h.options.MaxMemory)
	if err != nil {
		http.Error(w, fmt.Sprintf("error parsing request body: %s", err), http.StatusBadRequest)