diff options
Diffstat (limited to 'internal/httputil/negotiate.go')
-rw-r--r-- | internal/httputil/negotiate.go | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/internal/httputil/negotiate.go b/internal/httputil/negotiate.go deleted file mode 100644 index a25e3ed1..00000000 --- a/internal/httputil/negotiate.go +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file or at -// https://developers.google.com/open-source/licenses/bsd. - -package httputil - -import ( - "net/http" - "strings" - - "gitlab.com/gitlab-org/gitlab-pages/internal/httputil/header" -) - -// NegotiateContentEncoding returns the best offered content encoding for the -// request's Accept-Encoding header. If two offers match with equal weight and -// then the offer earlier in the list is preferred. If no offers are -// acceptable, then "" is returned. -func NegotiateContentEncoding(r *http.Request, offers []string) string { - bestOffer := "identity" - bestQ := -1.0 - specs := header.ParseAccept(r.Header, "Accept-Encoding") - for _, offer := range offers { - for _, spec := range specs { - if spec.Q > bestQ && - (spec.Value == "*" || spec.Value == offer) { - bestQ = spec.Q - bestOffer = offer - } - } - } - if bestQ == 0 { - bestOffer = "" - } - return bestOffer -} - -// NegotiateContentType returns the best offered content type for the request's -// Accept header. If two offers match with equal weight, then the more specific -// offer is preferred. For example, text/* trumps */*. If two offers match -// with equal weight and specificity, then the offer earlier in the list is -// preferred. If no offers match, then defaultOffer is returned. -func NegotiateContentType(r *http.Request, offers []string, defaultOffer string) string { - bestOffer := defaultOffer - bestQ := -1.0 - bestWild := 3 - specs := header.ParseAccept(r.Header, "Accept") - for _, offer := range offers { - for _, spec := range specs { - switch { - case spec.Q == 0.0: - // ignore - case spec.Q < bestQ: - // better match found - case spec.Value == "*/*": - if spec.Q > bestQ || bestWild > 2 { - bestQ = spec.Q - bestWild = 2 - bestOffer = offer - } - case strings.HasSuffix(spec.Value, "/*"): - if strings.HasPrefix(offer, spec.Value[:len(spec.Value)-1]) && - (spec.Q > bestQ || bestWild > 1) { - bestQ = spec.Q - bestWild = 1 - bestOffer = offer - } - default: - if spec.Value == offer && - (spec.Q > bestQ || bestWild > 0) { - bestQ = spec.Q - bestWild = 0 - bestOffer = offer - } - } - } - } - return bestOffer -} |