From c3fcb81a4b73b12321703e75dd32e60a327c6b33 Mon Sep 17 00:00:00 2001
From: Nils Schneider <nils@nilsschneider.net>
Date: Mon, 30 Sep 2013 21:37:40 +0200
Subject: [PATCH] ssh keys

---
 .../lib/lua/luci/controller/admin/system.lua  |  2 +-
 .../lib/lua/luci/model/cbi/admin/passwd.lua   | 86 ++++++++++++++-----
 2 files changed, 64 insertions(+), 24 deletions(-)

diff --git a/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/system.lua b/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/system.lua
index cb0152c2..457f1dde 100644
--- a/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/system.lua
+++ b/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/system.lua
@@ -16,7 +16,7 @@ $Id$
 module("luci.controller.admin.system", package.seeall)
 
 function index()
-	entry({"admin", "passwd"}, form("admin/passwd"), _("Admin Password"), 10)
+	entry({"admin", "passwd"}, cbi("admin/passwd"), _("Admin Password"), 10)
 	entry({"admin", "backup"}, call("action_backup"), _("Backup / Restore"), 80)
 	entry({"admin", "upgrade"}, call("action_upgrade"), _("Flash Firmware"), 90)
 	entry({"admin", "reboot"}, call("action_reboot"), _("Reboot"), 100)
diff --git a/package/gluon-luci-admin/files/usr/lib/lua/luci/model/cbi/admin/passwd.lua b/package/gluon-luci-admin/files/usr/lib/lua/luci/model/cbi/admin/passwd.lua
index 5b9efc4d..9f1ba873 100644
--- a/package/gluon-luci-admin/files/usr/lib/lua/luci/model/cbi/admin/passwd.lua
+++ b/package/gluon-luci-admin/files/usr/lib/lua/luci/model/cbi/admin/passwd.lua
@@ -2,7 +2,8 @@
 LuCI - Lua Configuration Interface
 
 Copyright 2008 Steven Barth <steven@midlink.org>
-Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
+Copyright 2011 Jo-Philipp Wich <xm@subsignal.org>
+Copyright 2013 Nils Schneider <nils@nilsschneider.net>
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -12,34 +13,73 @@ You may obtain a copy of the License at
 
 $Id$
 ]]--
-f = SimpleForm("password", translate("Admin Password"), translate("Change the password of the system administrator (User <code>root</code>)"))
 
-pw1 = f:field(Value, "pw1", translate("Password"))
+local fs = require "nixio.fs"
+
+local m, s, pw1, pw2
+
+m = Map("system", "Passwort &amp; SSH Keys")
+
+s = m:section(TypedSection, translate("Router Password"),
+  translate("Changes the administrator password for accessing the device"))
+
+s.addremove = false
+s.anonymous = true
+
+pw1 = s:option(Value, "pw1", translate("Password"))
 pw1.password = true
-pw1.rmempty = false
 
-pw2 = f:field(Value, "pw2", translate("Confirmation"))
+pw2 = s:option(Value, "pw2", translate("Confirmation"))
 pw2.password = true
-pw2.rmempty = false
 
-function pw2.validate(self, value, section)
-	return pw1:formvalue(section) == value and value
+function s.cfgsections()
+  return { "_pass" }
 end
 
-function f.handle(self, state, data)
-	if state == FORM_VALID then
-		local stat = luci.sys.user.setpasswd("root", data.pw1) == 0
-		
-		if stat then
-			f.message = translate("Password successfully changed")
-		else
-			f.errmessage = translate("Unknown Error")
-		end
-		
-		data.pw1 = nil
-		data.pw2 = nil
-	end
-	return true
+function m.on_commit(map)
+  local v1 = pw1:formvalue("_pass")
+  local v2 = pw2:formvalue("_pass")
+
+  if v1 and v2 and #v1 > 0 and #v2 > 0 then
+    if v1 == v2 then
+      if luci.sys.user.setpasswd(luci.dispatcher.context.authuser, v1) == 0 then
+        m.message = translate("Password successfully changed!")
+      else
+        m.message = translate("Unknown Error, password not changed!")
+      end
+    else
+      m.message = translate("Given password confirmation did not match, password not changed!")
+    end
+  end
 end
 
-return f
+if fs.access("/etc/config/dropbear") then
+  s = m:section(TypedSection, "_keys", "SSH Keys",
+    translate("Here you can paste public SSH-Keys (one per line) for SSH public-key authentication."))
+
+  s.addremove = false
+  s.anonymous = true
+
+  function s.cfgsections()
+    return { "_keys" }
+  end
+
+  local keys
+
+  keys = s:option(TextValue, "_data", "")
+  keys.wrap    = "off"
+  keys.rows    = 3
+  keys.rmempty = false
+
+  function keys.cfgvalue()
+    return fs.readfile("/etc/dropbear/authorized_keys") or ""
+  end
+
+  function keys.write(self, section, value)
+    if value then
+      fs.writefile("/etc/dropbear/authorized_keys", value:gsub("\r\n", "\n"))
+    end
+  end
+end
+
+return m