github.com/icyphox/x@v0.0.355-0.20220311094250-029bd783e8b8/httpx/content_type.go (about)

     1  package httpx
     2  
     3  import (
     4  	"mime"
     5  	"net/http"
     6  	"strings"
     7  
     8  	"github.com/ory/x/stringslice"
     9  )
    10  
    11  // HasContentType determines whether the request `content-type` includes a
    12  // server-acceptable mime-type
    13  //
    14  // Failure should yield an HTTP 415 (`http.StatusUnsupportedMediaType`)
    15  func HasContentType(r *http.Request, mimetypes ...string) bool {
    16  	contentType := r.Header.Get("Content-Type")
    17  	if contentType == "" {
    18  		return stringslice.Has(mimetypes, "application/octet-stream")
    19  	}
    20  
    21  	for _, v := range strings.Split(contentType, ",") {
    22  		t, _, err := mime.ParseMediaType(strings.TrimSpace(v))
    23  		if err != nil {
    24  			break
    25  		}
    26  		if stringslice.Has(mimetypes, t) {
    27  			return true
    28  		}
    29  	}
    30  	return false
    31  }