From 94f0bfdc2d658486069f50319c2eb46206c0ee92 Mon Sep 17 00:00:00 2001
From: Stefan Bethke <stb@lassitu.de>
Date: Mon, 20 Aug 2018 19:22:27 +0000
Subject: [PATCH] Make registration endpoint URI configurable

This allows hiding the registration while leaving it enabled and
exposed to the wider network.
---
 README.md  | 3 +++
 config.cfg | 2 ++
 main.go    | 7 ++++++-
 types.go   | 1 +
 4 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 8a8384b2..979c46ab 100644
--- a/README.md
+++ b/README.md
@@ -300,6 +300,9 @@ header_name = "X-Forwarded-For"
 
 
 ## Changelog
+- unreleased
+   - New
+      - Registration URI configurable
 - v0.5
    - New
       - Configurable certificate cache directory
diff --git a/config.cfg b/config.cfg
index 93dd663d..1008d315 100644
--- a/config.cfg
+++ b/config.cfg
@@ -38,6 +38,8 @@ api_domain = ""
 ip = "0.0.0.0"
 # disable registration endpoint
 disable_registration = false
+# endpoint URI for registration
+#registration_uri = "/register"
 # autocert HTTP port, eg. 80 for answering Let's Encrypt HTTP-01 challenges. Mandatory if using tls = "letsencrypt".
 autocert_port = "80"
 # listen port, eg. 443 for default HTTPS
diff --git a/main.go b/main.go
index 2eb135a1..643bedf4 100644
--- a/main.go
+++ b/main.go
@@ -78,7 +78,12 @@ func startHTTPAPI() {
 		c.Log = stdlog.New(logwriter, "", 0)
 	}
 	if !Config.API.DisableRegistration {
-		api.POST("/register", webRegisterPost)
+		uri := Config.API.RegistrationUri
+		if (uri == "") {
+		    uri = "/register"
+		}
+		log.WithFields(log.Fields{"register_uri": uri}).Debug("Register endpoint")
+		api.POST(uri, webRegisterPost)
 	}
 	api.POST("/update", Auth(webUpdatePost))
 
diff --git a/types.go b/types.go
index a615a596..7bbeb1ad 100644
--- a/types.go
+++ b/types.go
@@ -54,6 +54,7 @@ type httpapi struct {
 	Domain              string `toml:"api_domain"`
 	IP                  string
 	DisableRegistration bool   `toml:"disable_registration"`
+	RegistrationUri     string `toml:"registration_uri"`
 	AutocertPort        string `toml:"autocert_port"`
 	Port                string `toml:"port"`
 	TLS                 string