A little bit better user handling

components/data/user.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<component name="UserData" extends="ContentNode">
+  <interface>
+    <field id="id" type="string" />
+    <field id="username" type="string" />
+    <field id="token" type="string" />
+    <field id="json" type="associativearray" onChange="setDataFromJSON" />
+    <function name="getPreference" />
+    <function name="setPreference" />
+    <function name="loadFromRegistry" />
+    <function name="saveToRegistry" />
+    <function name="setActive" />
+  </interface>
+  <script type="text/brightscript" uri="pkg:/source/utils/config.brs" />
+  <script type="text/brightscript">
+  <![CDATA[
+  sub setDataFromJSON()
+    json = m.top.json
+    loadFromJSON(json)
+  end sub
+
+  function loadFromJSON(json)
+    m.top.id = json.User.id
+
+    m.top.username = json.User.username
+    m.top.token = json.AccessToken
+  end function
+
+  function loadFromRegistry(id as String)
+    m.top.id = id
+
+    m.top.username = get_user_setting("username")
+    m.top.token = get_user_setting("token")
+  end function
+
+  function saveToRegistry()
+    set_user_setting("username", m.top.username)
+    set_user_setting("token", m.top.token)
+  end function
+
+  function getPreference(key as String, default as String)
+    return get_user_setting("pref-" + key, default)
+  end function
+
+  function setPreference(key as String, value as String)
+    return set_user_setting("pref-" + key, value)
+  end function
+
+  function setActive()
+    set_setting("active_user", m.top.id)
+  end function
+  ]]>
+  </script>
+</component>

source/Main.brs

@@ -17,8 +17,9 @@ sub Main()
 
   ' Confirm the configured server and user work
   m.user = AboutMe()
-  if m.user.id <> get_setting("active_user")
+  if m.user = invalid or m.user.id <> get_setting("active_user")
     print "Login failed, restart flow"
+    unset_setting("active_user")
     goto start_login
   end if
 

source/api/baserequest.brs

@@ -59,6 +59,10 @@ end function
 function getJson(req)
   'req.retainBodyOnError(True)
   'print req.GetToString()
+  data = req.GetToString()
+  if data = invalid or data = ""
+    return invalid
+  end if
   json = ParseJson(req.GetToString())
   return json
 end function
@@ -150,7 +154,7 @@ function authorize_request(request)
   end if
 
   token = get_user_setting("token")
-  if token <> invalid and token <> "" then
+  if token <> invalid and token <> ""
     auth = auth + ", Token=" + Chr(34) + token + Chr(34)
   end if
 

source/api/userauth.brs

@@ -6,25 +6,28 @@ function get_token(user as String, password as String)
   hashed_pass = digest.process(bytes)
 
   url = "Users/AuthenticateByName?format=json"
-
   req = APIRequest(url)
 
   json = postJson(req, "Username=" + user + "&Password=" + hashed_pass)
 
   if json = invalid then return invalid
 
-  set_setting("active_user", json.User.id)
-  set_user_setting("id", json.User.id)  ' redundant, but could come in handy
-  set_user_setting("token", json.AccessToken)
-  return json
+  userdata = CreateObject("roSGNode", "UserData")
+  userdata.json = json
+
+  userdata.callFunc("setActive")
+  userdata.callFunc("saveToRegistry")
+  return userdata
 end function
 
 function AboutMe()
-  url = Substitute("Users/{0}", get_setting("active_user"))
+  id = get_setting("active_user")
+  url = Substitute("Users/{0}", id)
   resp = APIRequest(url)
   return getJson(resp)
 end function
 
 function SignOut()
+  unset_user_setting("token")
   unset_setting("active_user")
 end function