Email verification code (#1382)

* Base verification code implementation, must define command, manager, events
* VerificationManager, verification command and messages, handled some sensible commands, configuration values
* Improved manager and sensible commands trigger
* Updated messages
* Updated verification code manager, fixed tests
* Switched to a permission based command
* Verification manager and command improved and added tests
* Edited messages

src/main/java/fr/xephi/authme/command/executable/changepassword/ChangePasswordCommand.java

@@ -1,6 +1,7 @@
 package fr.xephi.authme.command.executable.changepassword;
 
 import fr.xephi.authme.command.PlayerCommand;
+import fr.xephi.authme.data.VerificationCodeManager;
 import fr.xephi.authme.data.auth.PlayerCache;
 import fr.xephi.authme.message.MessageKey;
 import fr.xephi.authme.process.Management;
@@ -29,17 +30,28 @@ public class ChangePasswordCommand extends PlayerCommand {
     @Inject
     private Management management;
 
+    @Inject
+    private VerificationCodeManager codeManager;
+
     @Override
     public void runCommand(Player player, List<String> arguments) {
-        String oldPassword = arguments.get(0);
-        String newPassword = arguments.get(1);
-
         String name = player.getName().toLowerCase();
+
         if (!playerCache.isAuthenticated(name)) {
             commonService.send(player, MessageKey.NOT_LOGGED_IN);
             return;
         }
 
+        // Check if the user has been verified or not
+        if (codeManager.isVerificationRequired(player)) {
+            codeManager.codeExistOrGenerateNew(name);
+            commonService.send(player, MessageKey.VERIFICATION_CODE_REQUIRED);
+            return;
+        }
+
+        String oldPassword = arguments.get(0);
+        String newPassword = arguments.get(1);
+
         // Make sure the password is allowed
         ValidationResult passwordValidation = validationService.validatePassword(newPassword, name);
         if (passwordValidation.hasError()) {

src/main/java/fr/xephi/authme/command/executable/email/ChangeEmailCommand.java

@@ -1,8 +1,10 @@
 package fr.xephi.authme.command.executable.email;
 
 import fr.xephi.authme.command.PlayerCommand;
+import fr.xephi.authme.data.VerificationCodeManager;
 import fr.xephi.authme.message.MessageKey;
 import fr.xephi.authme.process.Management;
+import fr.xephi.authme.service.CommonService;
 import org.bukkit.entity.Player;
 
 import javax.inject.Inject;
@@ -16,11 +18,24 @@ public class ChangeEmailCommand extends PlayerCommand {
     @Inject
     private Management management;
 
+    @Inject
+    private CommonService commonService;
+
+    @Inject
+    private VerificationCodeManager codeManager;
+
     @Override
     public void runCommand(Player player, List<String> arguments) {
+        final String playerName = player.getName();
+        // Check if the user has been verified or not
+        if (codeManager.isVerificationRequired(player)) {
+            codeManager.codeExistOrGenerateNew(playerName);
+            commonService.send(player, MessageKey.VERIFICATION_CODE_REQUIRED);
+            return;
+        }
+
         String playerMailOld = arguments.get(0);
         String playerMailNew = arguments.get(1);
-
         management.performChangeEmail(player, playerMailOld, playerMailNew);
     }
 

src/main/java/fr/xephi/authme/command/executable/unregister/UnregisterCommand.java

@@ -1,6 +1,7 @@
 package fr.xephi.authme.command.executable.unregister;
 
 import fr.xephi.authme.command.PlayerCommand;
+import fr.xephi.authme.data.VerificationCodeManager;
 import fr.xephi.authme.data.auth.PlayerCache;
 import fr.xephi.authme.message.MessageKey;
 import fr.xephi.authme.process.Management;
@@ -24,6 +25,9 @@ public class UnregisterCommand extends PlayerCommand {
     @Inject
     private PlayerCache playerCache;
 
+    @Inject
+    private VerificationCodeManager codeManager;
+
     @Override
     public void runCommand(Player player, List<String> arguments) {
         String playerPass = arguments.get(0);
@@ -35,6 +39,13 @@ public class UnregisterCommand extends PlayerCommand {
             return;
         }
 
+        // Check if the user has been verified or not
+        if (codeManager.isVerificationRequired(player)) {
+            codeManager.codeExistOrGenerateNew(playerName);
+            commonService.send(player, MessageKey.VERIFICATION_CODE_REQUIRED);
+            return;
+        }
+
         // Unregister the player
         management.performUnregister(player, playerPass);
     }

src/main/java/fr/xephi/authme/command/executable/verification/VerificationCommand.java

@@ -0,0 +1,58 @@
+package fr.xephi.authme.command.executable.verification;
+
+import fr.xephi.authme.ConsoleLogger;
+import fr.xephi.authme.command.PlayerCommand;
+import fr.xephi.authme.data.VerificationCodeManager;
+import fr.xephi.authme.message.MessageKey;
+import fr.xephi.authme.service.CommonService;
+import org.bukkit.entity.Player;
+
+import javax.inject.Inject;
+import java.util.List;
+
+/**
+ * Used to complete the email verification process.
+ */
+public class VerificationCommand extends PlayerCommand {
+
+    @Inject
+    private CommonService commonService;
+
+    @Inject
+    private VerificationCodeManager codeManager;
+
+    @Override
+    public void runCommand(Player player, List<String> arguments) {
+        final String playerName = player.getName();
+
+        if (!codeManager.canSendMail()) {
+            ConsoleLogger.warning("Mail API is not set");
+            commonService.send(player, MessageKey.INCOMPLETE_EMAIL_SETTINGS);
+            return;
+        }
+
+        if (codeManager.isVerificationRequired(player)) {
+            if (codeManager.isCodeRequired(playerName)) {
+                if (codeManager.checkCode(playerName, arguments.get(0))) {
+                    commonService.send(player, MessageKey.VERIFICATION_CODE_VERIFIED);
+                } else {
+                    commonService.send(player, MessageKey.INCORRECT_VERIFICATION_CODE);
+                }
+            } else {
+                commonService.send(player, MessageKey.VERIFICATION_CODE_EXPIRED);
+            }
+        } else {
+            if (codeManager.hasEmail(playerName)) {
+                commonService.send(player, MessageKey.VERIFICATION_CODE_ALREADY_VERIFIED);
+            } else {
+                commonService.send(player, MessageKey.VERIFICATION_CODE_EMAIL_NEEDED);
+                commonService.send(player, MessageKey.ADD_EMAIL_MESSAGE);
+            }
+        }
+    }
+
+    @Override
+    public MessageKey getArgumentsMismatchMessage() {
+        return MessageKey.USAGE_VERIFICATION_CODE;
+    }
+}