Fix #349 Create method on Messages to pass tag replacements

- Add tests
- Fix placeholder in some files

src/main/java/fr/xephi/authme/command/executable/captcha/CaptchaCommand.java

@@ -58,9 +58,7 @@ public class CaptchaCommand extends ExecutableCommand {
             plugin.cap.remove(playerNameLowerCase);
             String randStr = new RandomString(Settings.captchaLength).nextString();
             plugin.cap.put(playerNameLowerCase, randStr);
-            for (String s : m.retrieve(MessageKey.CAPTCHA_WRONG_ERROR)) {
-                player.sendMessage(s.replace("THE_CAPTCHA", plugin.cap.get(playerNameLowerCase)));
-            }
+            m.send(player, MessageKey.CAPTCHA_WRONG_ERROR, plugin.cap.get(playerNameLowerCase));
             return true;
         }
 

src/main/java/fr/xephi/authme/output/Messages.java

@@ -47,6 +47,31 @@ public class Messages {
         }
     }
 
+    /**
+     * Send the given message code to the player with the given tag replacements. Note that this method
+     * issues an exception if the number of supplied replacements doesn't correspond to the number of tags
+     * the message key contains.
+     *
+     * @param sender The entity to send the message to
+     * @param key The key of the message to send
+     * @param replacements The replacements to apply for the tags
+     */
+    public void send(CommandSender sender, MessageKey key, String... replacements) {
+        String message = retrieveSingle(key);
+        String[] tags = key.getTags();
+        if (replacements.length != tags.length) {
+            throw new RuntimeException("Given replacement size does not match the tags in message key '" + key + "'");
+        }
+
+        for (int i = 0; i < tags.length; ++i) {
+            message = message.replace(tags[i], replacements[i]);
+        }
+
+        for (String line : message.split("\n")) {
+            sender.sendMessage(line);
+        }
+    }
+
     /**
      * Retrieve the message from the text file and return it split by new line as an array.
      *

src/main/java/fr/xephi/authme/process/login/AsynchronousLogin.java

@@ -57,20 +57,10 @@ public class AsynchronousLogin {
         this.database = data;
     }
 
-    /**
-     * Method getIP.
-     *
-     * @return String
-     */
     protected String getIP() {
         return plugin.getIP(player);
     }
 
-    /**
-     * Method needsCaptcha.
-     *
-     * @return boolean
-     */
     protected boolean needsCaptcha() {
         if (Settings.useCaptcha) {
             if (!plugin.captcha.containsKey(name)) {
@@ -82,9 +72,7 @@ public class AsynchronousLogin {
             }
             if (plugin.captcha.containsKey(name) && plugin.captcha.get(name) > Settings.maxLoginTry) {
                 plugin.cap.putIfAbsent(name, rdm.nextString());
-                for (String s : m.retrieve(MessageKey.USAGE_CAPTCHA)) {
-                    player.sendMessage(s.replace("THE_CAPTCHA", plugin.cap.get(name)).replace("<theCaptcha>", plugin.cap.get(name)));
-                }
+                m.send(player, MessageKey.USAGE_CAPTCHA, plugin.cap.get(name));
                 return true;
             }
         }
@@ -230,12 +218,6 @@ public class AsynchronousLogin {
         }
     }
 
-    /**
-     * Method displayOtherAccounts.
-     *
-     * @param auth PlayerAuth
-     * @param p    Player
-     */
     public void displayOtherAccounts(PlayerAuth auth, Player p) {
         if (!Settings.displayOtherAccounts) {
             return;