Custom footer text (optional)

Closes #256 and #166

oauthproxy.go

@@ -66,6 +66,7 @@ type OAuthProxy struct {
 	skipAuthRegex       []string
 	compiledRegex       []*regexp.Regexp
 	templates           *template.Template
+	Footer              string
 }
 
 type UpstreamProxy struct {
@@ -199,6 +200,7 @@ func NewOAuthProxy(opts *Options, validator func(string) bool) *OAuthProxy {
 		SkipProviderButton: opts.SkipProviderButton,
 		CookieCipher:       cipher,
 		templates:          loadTemplates(opts.CustomTemplatesDir),
+		Footer:             opts.Footer,
 	}
 }
 
@@ -345,6 +347,7 @@ func (p *OAuthProxy) SignInPage(rw http.ResponseWriter, req *http.Request, code
 		Redirect      string
 		Version       string
 		ProxyPrefix   string
+		Footer        template.HTML
 	}{
 		ProviderName:  p.provider.Data().ProviderName,
 		SignInMessage: p.SignInMessage,
@@ -352,6 +355,7 @@ func (p *OAuthProxy) SignInPage(rw http.ResponseWriter, req *http.Request, code
 		Redirect:      redirect_url,
 		Version:       VERSION,
 		ProxyPrefix:   p.ProxyPrefix,
+		Footer:        template.HTML(p.Footer),
 	}
 	p.templates.ExecuteTemplate(rw, "sign_in.html", t)
 }