distribution/registry/basicauth_prego14.go

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// +build !go1.4
package registry
import (
"encoding/base64"
"net/http"
"strings"
)
// NOTE(stevvooe): This is basic auth support from go1.4 present to ensure we
// can compile on go1.3 and earlier.
// BasicAuth returns the username and password provided in the request's
// Authorization header, if the request uses HTTP Basic Authentication.
// See RFC 2617, Section 2.
func basicAuth(r *http.Request) (username, password string, ok bool) {
auth := r.Header.Get("Authorization")
if auth == "" {
return
}
return parseBasicAuth(auth)
}
// parseBasicAuth parses an HTTP Basic Authentication string.
// "Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==" returns ("Aladdin", "open sesame", true).
func parseBasicAuth(auth string) (username, password string, ok bool) {
if !strings.HasPrefix(auth, "Basic ") {
return
}
c, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(auth, "Basic "))
if err != nil {
return
}
cs := string(c)
s := strings.IndexByte(cs, ':')
if s < 0 {
return
}
return cs[:s], cs[s+1:], true
}