1 files changed, 8 insertions, 12 deletions

diff --git a/juick-spring-www/src/main/java/com/juick/www/controllers/ShowMessageController.java b/juick-spring-www/src/main/java/com/juick/www/controllers/ShowMessageController.java
index 59ab52c2..e95bd7cf 100644
--- a/juick-spring-www/src/main/java/com/juick/www/controllers/ShowMessageController.java
+++ b/juick-spring-www/src/main/java/com/juick/www/controllers/ShowMessageController.java
@@ -3,6 +3,7 @@ package com.juick.www.controllers;
 import com.juick.User;
 import com.juick.service.MessagesService;
 import com.juick.service.UserService;
+import com.juick.util.WebUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.math.NumberUtils;
 import org.springframework.stereotype.Controller;
@@ -12,17 +13,12 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 
 import javax.inject.Inject;
-import java.util.regex.Pattern;
 
 /**
  * Created by aalexeev on 11/21/16.
  */
 @Controller
 public class ShowMessageController {
-    private static final Pattern USER_NAME_PATTERN = Pattern.compile("[a-zA-Z-_\\d]{2,16}");
-
-    private static final Pattern POST_NUMBER_PATTERN = Pattern.compile("-?\\d+");
-
     @Inject
     private UserService userService;
     @Inject
@@ -48,7 +44,7 @@ public class ShowMessageController {
         }
 
         if (before == 0) {
-            boolean isPostNumber = POST_NUMBER_PATTERN.matcher(anything).matches();
+            boolean isPostNumber = WebUtils.isPostNumber(anything);
             int messageId = isPostNumber ?
                     NumberUtils.toInt(anything) : 0;
 
@@ -84,7 +80,7 @@ public class ShowMessageController {
             int before,
             Model model) {
         // Check validity of user name before quering from database
-        if (!USER_NAME_PATTERN.matcher(userName).matches()) {
+        if (WebUtils.isNotUserName(userName)) {
             model.addAttribute("userName", userName);
             return "userNotFound";
         }
@@ -103,7 +99,7 @@ public class ShowMessageController {
             @PathVariable String userName,
             Model model) {
         // Check validity of user name before quering from database
-        if (!USER_NAME_PATTERN.matcher(userName).matches()) {
+        if (WebUtils.isNotUserName(userName)) {
             model.addAttribute("userName", userName);
             return "userNotFound";
         }
@@ -122,7 +118,7 @@ public class ShowMessageController {
             @PathVariable String userName,
             Model model) {
         // Check validity of user name before quering from database
-        if (!USER_NAME_PATTERN.matcher(userName).matches()) {
+        if (WebUtils.isNotUserName(userName)) {
             model.addAttribute("userName", userName);
             return "userNotFound";
         }
@@ -141,7 +137,7 @@ public class ShowMessageController {
             @PathVariable String userName,
             Model model) {
         // Check validity of user name before quering from database
-        if (!USER_NAME_PATTERN.matcher(userName).matches()) {
+        if (WebUtils.isNotUserName(userName)) {
             model.addAttribute("userName", userName);
             return "userNotFound";
         }
@@ -161,13 +157,13 @@ public class ShowMessageController {
             @PathVariable String postNumber,
             Model model) {
         // Check validity of post number before quering from database
-        if (!POST_NUMBER_PATTERN.matcher(postNumber).matches()) {
+        if (WebUtils.isNotPostNumber(postNumber)) {
             model.addAttribute("messageId", postNumber);
             return "postNotFound";
         }
 
         // Check validity of user name before quering from database
-        if (!USER_NAME_PATTERN.matcher(userName).matches()) {
+        if (WebUtils.isNotUserName(userName)) {
             model.addAttribute("userName", userName);
             return "userNotFound";
         }