Checks if Twitter keys are empty

bot/utils.lua

@@ -180,4 +180,9 @@ function serialize_to_file(data, file)
   })
   file:write(serialized)
   file:close()
+end
+
+-- Retruns true if the string is empty
+function string:isempty()
+  return self == nil or self == ''
 end

plugins/twitter.lua

@@ -16,16 +16,23 @@ local client = OAuth.new(consumer_key, consumer_secret, {
 
 function run(msg, matches)
 
+  if consumer_key:isempty() then
+    return "Twitter Consumer Key is empty, write it in plugins/twitter.lua"
+  end
+  if consumer_secret:isempty() then
+    return "Twitter Consumer Secret is empty, write it in plugins/twitter.lua"
+  end
+  if access_token:isempty() then
+    return "Twitter Access Token is empty, write it in plugins/twitter.lua"
+  end
+  if access_token_secret:isempty() then
+    return "Twitter Access Token Secret is empty, write it in plugins/twitter.lua"
+  end
+
   local twitter_url = "https://api.twitter.com/1.1/statuses/show/" .. matches[1] .. ".json"
-
-  print(twitter_url)
-
   local response_code, response_headers, response_status_line, response_body = client:PerformRequest("GET", twitter_url)
-  print(response_body)
   local response = json:decode(response_body)
 
-  print("response = ", response)
-
   local header = "Tweet from " .. response.user.name .. " (@" .. response.user.screen_name .. ")\n"
   local text = response.text
   
@@ -65,6 +72,4 @@ return {
     usage = "",
     patterns = {"https://twitter.com/[^/]+/status/([0-9]+)"}, 
     run = run 
-}
+}
-
-