Checks if Twitter keys are empty

plugins/twitter_send.lua

@@ -9,23 +9,37 @@ local client = OAuth.new(consumer_key, consumer_secret, {
     RequestToken = "https://api.twitter.com/oauth/request_token", 
     AuthorizeUser = {"https://api.twitter.com/oauth/authorize", method = "GET"},
     AccessToken = "https://api.twitter.com/oauth/access_token"
-}, {
+    }, {
     OAuthToken = access_token,
     OAuthTokenSecret = access_token_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
+
     if not is_sudo(msg) then
         return "You aren't allowed to send tweets"
     end
-	local response_code, response_headers, response_status_line, response_body = 
+    
+    local response_code, response_headers, response_status_line, response_body = 
     client:PerformRequest("POST", "https://api.twitter.com/1.1/statuses/update.json", {
-    	status = matches[1]
+        status = matches[1]
-    })
+        })
     if response_code ~= 200 then
-    	return "Error: "..response_code
+        return "Error: "..response_code
     end
-	return "Tweet sended"
+    return "Tweet sended"
 end
 
 return {