func()

in oauthproxy.go [709:734]

• 26 lines of code
• 8 McCabe index (conditional complexity)

func (p *OAuthProxy) CheckBasicAuth(req *http.Request) (*providers.SessionState, error) {
	if p.HtpasswdFile == nil {
		return nil, nil
	}
	auth := req.Header.Get("Authorization")
	if auth == "" {
		return nil, nil
	}
	s := strings.SplitN(auth, " ", 2)
	if len(s) != 2 || s[0] != "Basic" {
		return nil, fmt.Errorf("invalid Authorization header %s", req.Header.Get("Authorization"))
	}
	b, err := b64.StdEncoding.DecodeString(s[1])
	if err != nil {
		return nil, err
	}
	pair := strings.SplitN(string(b), ":", 2)
	if len(pair) != 2 {
		return nil, fmt.Errorf("invalid format %s", b)
	}
	if p.HtpasswdFile.Validate(pair[0], pair[1]) {
		log.Printf("authenticated %q via basic auth", pair[0])
		return &providers.SessionState{User: pair[0]}, nil
	}
	return nil, fmt.Errorf("%s not in HtpasswdFile", pair[0])
}