add icon(128*128)

.gitignore

@@ -7,3 +7,4 @@ desktop.ini
 .vs
 packages
 *.zip
+deploy

Models/VNCServer.cs

@@ -11,5 +11,7 @@ namespace VNCServerList.Models
         public string Description { get; set; }
         public string Password { get; set; }
         public string Argument { get; set; }
+        public byte[] Icon { get; set; }
+        public string IconBase64 { get; set; } // Base64 인코딩된 아이콘 데이터
     }
 } 

Services/DatabaseService.cs

@@ -36,6 +36,7 @@ namespace VNCServerList.Services
                         [Description] [varchar](100) NULL,
                         [Password] [varchar](20) NULL,
                         [Argument] [varchar](50) NULL,
+                        [Icon] [image] NULL,
                         CONSTRAINT [PK_VNC_ServerList] PRIMARY KEY CLUSTERED 
                         (
                             [User] ASC,
@@ -47,6 +48,16 @@ namespace VNCServerList.Services
                 {
                     command.ExecuteNonQuery();
                 }
+
+                // Icon 컬럼이 존재하는지 확인하고 없으면 추가
+                string checkIconColumnSql = @"
+                    IF NOT EXISTS (SELECT * FROM sys.columns WHERE object_id = OBJECT_ID(N'[dbo].[VNC_ServerList]') AND name = 'Icon')
+                    ALTER TABLE [dbo].[VNC_ServerList] ADD [Icon] [image] NULL";
+
+                using (var command = new SqlCommand(checkIconColumnSql, connection))
+                {
+                    command.ExecuteNonQuery();
+                }
             }
         }
 
@@ -72,7 +83,8 @@ namespace VNCServerList.Services
                             Title = reader["Title"] == DBNull.Value ? null : reader["Title"].ToString(),
                             Description = reader["Description"] == DBNull.Value ? null : reader["Description"].ToString(),
                             Password = reader["Password"] == DBNull.Value ? null : reader["Password"].ToString(),
-                            Argument = reader["Argument"] == DBNull.Value ? null : reader["Argument"].ToString()
+                            Argument = reader["Argument"] == DBNull.Value ? null : reader["Argument"].ToString(),
+                            Icon = reader["Icon"] == DBNull.Value ? null : (byte[])reader["Icon"]
                         });
                     }
                 }
@@ -105,7 +117,8 @@ namespace VNCServerList.Services
                                 Title = reader["Title"] == DBNull.Value ? null : reader["Title"].ToString(),
                                 Description = reader["Description"] == DBNull.Value ? null : reader["Description"].ToString(),
                                 Password = reader["Password"] == DBNull.Value ? null : reader["Password"].ToString(),
-                                Argument = reader["Argument"] == DBNull.Value ? null : reader["Argument"].ToString()
+                                Argument = reader["Argument"] == DBNull.Value ? null : reader["Argument"].ToString(),
+                                Icon = reader["Icon"] == DBNull.Value ? null : (byte[])reader["Icon"]
                             };
                         }
                     }
@@ -121,8 +134,8 @@ namespace VNCServerList.Services
             {
                 connection.Open();
                 string sql = @"
-                    INSERT INTO VNC_ServerList ([User], [IP], [Category], [Title],[Description], [Password], [Argument])
-                    VALUES (@User, @IP, @Category, @Title,@Description, @Password, @Argument)";
+                    INSERT INTO VNC_ServerList ([User], [IP], [Category], [Title],[Description], [Password], [Argument], [Icon])
+                    VALUES (@User, @IP, @Category, @Title,@Description, @Password, @Argument, @Icon)";
                 
                 using (var command = new SqlCommand(sql, connection))
                 {
@@ -133,6 +146,7 @@ namespace VNCServerList.Services
                     command.Parameters.AddWithValue("@Description", (object)server.Description ?? DBNull.Value);
                     command.Parameters.AddWithValue("@Password", (object)server.Password ?? DBNull.Value);
                     command.Parameters.AddWithValue("@Argument", (object)server.Argument ?? DBNull.Value);
+                    command.Parameters.AddWithValue("@Icon", (object)server.Icon ?? DBNull.Value);
                     
                     return command.ExecuteNonQuery() > 0;
                 }
@@ -147,7 +161,7 @@ namespace VNCServerList.Services
                 string sql = @"
                     UPDATE VNC_ServerList 
                     SET [Category] = @Category, [Title] = @Title, [Description] = @Description, 
-                        [Password] = @Password, [Argument] = @Argument
+                        [Password] = @Password, [Argument] = @Argument, [Icon] = @Icon
                     WHERE [User] = @User AND [IP] = @IP";
                 
                 using (var command = new SqlCommand(sql, connection))
@@ -159,6 +173,7 @@ namespace VNCServerList.Services
                     command.Parameters.AddWithValue("@Description", (object)server.Description ?? DBNull.Value);
                     command.Parameters.AddWithValue("@Password", (object)server.Password ?? DBNull.Value);
                     command.Parameters.AddWithValue("@Argument", (object)server.Argument ?? DBNull.Value);
+                    command.Parameters.AddWithValue("@Icon", (object)server.Icon ?? DBNull.Value);
                     
                     return command.ExecuteNonQuery() > 0;
                 }
@@ -173,7 +188,7 @@ namespace VNCServerList.Services
                 string sql = @"
                     UPDATE VNC_ServerList 
                     SET [IP] = @NewIP, [Category] = @Category, [Title] = @Title, [Description] = @Description, 
-                        [Password] = @Password, [Argument] = @Argument
+                        [Password] = @Password, [Argument] = @Argument, [Icon] = @Icon
                     WHERE [User] = @User AND [IP] = @OriginalIP";
                 
                 using (var command = new SqlCommand(sql, connection))
@@ -186,6 +201,7 @@ namespace VNCServerList.Services
                     command.Parameters.AddWithValue("@Description", (object)newServerData.Description ?? DBNull.Value);
                     command.Parameters.AddWithValue("@Password", (object)newServerData.Password ?? DBNull.Value);
                     command.Parameters.AddWithValue("@Argument", (object)newServerData.Argument ?? DBNull.Value);
+                    command.Parameters.AddWithValue("@Icon", (object)newServerData.Icon ?? DBNull.Value);
                     
                     return command.ExecuteNonQuery() > 0;
                 }

Web/Controllers/VNCServerController.cs

@@ -2,6 +2,12 @@ using System;
 using System.Collections.Generic;
 using System.Web.Http;
 using System.Linq;
+using System.Net.Http;
+using System.Net;
+using System.IO;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Drawing.Imaging;
 using VNCServerList.Models;
 using VNCServerList.Services;
 
@@ -75,6 +81,20 @@ namespace VNCServerList.Web.Controllers
                     return BadRequest("서버 정보가 없습니다.");
                 }
 
+                // 아이콘이 Base64로 전송된 경우 처리
+                if (!string.IsNullOrEmpty(server.IconBase64))
+                {
+                    try
+                    {
+                        var iconData = Convert.FromBase64String(server.IconBase64);
+                        server.Icon = ResizeImage(iconData, 128, 128);
+                    }
+                    catch
+                    {
+                        return BadRequest("아이콘 데이터 형식이 올바르지 않습니다.");
+                    }
+                }
+
                 bool success = _databaseService.AddServer(server);
                 if (success)
                 {
@@ -102,6 +122,20 @@ namespace VNCServerList.Web.Controllers
                     return BadRequest("서버 정보가 없습니다.");
                 }
 
+                // 아이콘이 Base64로 전송된 경우 처리
+                if (!string.IsNullOrEmpty(server.IconBase64))
+                {
+                    try
+                    {
+                        var iconData = Convert.FromBase64String(server.IconBase64);
+                        server.Icon = ResizeImage(iconData, 128, 128);
+                    }
+                    catch
+                    {
+                        return BadRequest("아이콘 데이터 형식이 올바르지 않습니다.");
+                    }
+                }
+
                 // 원본 사용자명과 IP로 서버를 찾아서 업데이트
                 bool success = _databaseService.UpdateServerByUserAndIP(originalUser, originalIp, server);
                 if (success)
@@ -264,5 +298,154 @@ namespace VNCServerList.Web.Controllers
                 return InternalServerError(ex);
             }
         }
+
+        [HttpGet]
+        [Route("icon/{user}/{ip}")]
+        public HttpResponseMessage GetServerIcon(string user, string ip)
+        {
+            try
+            {
+                var server = _databaseService.GetServerByUserAndIP(user, ip);
+                if (server?.Icon == null || server.Icon.Length == 0)
+                {
+                    return Request.CreateResponse(HttpStatusCode.NotFound);
+                }
+
+                var response = Request.CreateResponse(HttpStatusCode.OK);
+                response.Content = new ByteArrayContent(server.Icon);
+                response.Content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("image/png");
+                return response;
+            }
+            catch (Exception ex)
+            {
+                return Request.CreateResponse(HttpStatusCode.InternalServerError, ex.Message);
+            }
+        }
+
+        private byte[] ResizeImage(byte[] imageData, int maxWidth = 128, int maxHeight = 128)
+        {
+            using (var originalStream = new MemoryStream(imageData))
+            using (var originalImage = Image.FromStream(originalStream))
+            {
+                // 원본 이미지 크기
+                int originalWidth = originalImage.Width;
+                int originalHeight = originalImage.Height;
+
+                // 리사이즈가 필요한지 확인
+                if (originalWidth <= maxWidth && originalHeight <= maxHeight)
+                {
+                    return imageData; // 리사이즈 불필요
+                }
+
+                // 새로운 크기 계산 (비율 유지)
+                double ratioX = (double)maxWidth / originalWidth;
+                double ratioY = (double)maxHeight / originalHeight;
+                double ratio = Math.Min(ratioX, ratioY);
+
+                int newWidth = (int)(originalWidth * ratio);
+                int newHeight = (int)(originalHeight * ratio);
+
+                // 새 이미지 생성
+                using (var resizedImage = new Bitmap(newWidth, newHeight))
+                using (var graphics = Graphics.FromImage(resizedImage))
+                {
+                    // 고품질 리사이즈 설정
+                    graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
+                    graphics.SmoothingMode = SmoothingMode.HighQuality;
+                    graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
+
+                    // 이미지 그리기
+                    graphics.DrawImage(originalImage, 0, 0, newWidth, newHeight);
+
+                    // PNG로 변환하여 반환
+                    using (var outputStream = new MemoryStream())
+                    {
+                        resizedImage.Save(outputStream, ImageFormat.Png);
+                        return outputStream.ToArray();
+                    }
+                }
+            }
+        }
+
+        [HttpPost]
+        [Route("icon/{user}/{ip}")]
+        public IHttpActionResult UploadServerIcon(string user, string ip)
+        {
+            try
+            {
+                var httpRequest = System.Web.HttpContext.Current.Request;
+                if (httpRequest.Files.Count == 0)
+                {
+                    return BadRequest("업로드된 파일이 없습니다.");
+                }
+
+                var file = httpRequest.Files[0];
+                if (file.ContentLength > 1024 * 1024) // 1MB 제한
+                {
+                    return BadRequest("파일 크기는 1MB를 초과할 수 없습니다.");
+                }
+
+                using (var memoryStream = new MemoryStream())
+                {
+                    file.InputStream.CopyTo(memoryStream);
+                    var originalIconData = memoryStream.ToArray();
+
+                    // 이미지 리사이즈 (128x128로 제한)
+                    var resizedIconData = ResizeImage(originalIconData, 128, 128);
+
+                    var server = _databaseService.GetServerByUserAndIP(user, ip);
+                    if (server == null)
+                    {
+                        return NotFound();
+                    }
+
+                    server.Icon = resizedIconData;
+                    bool success = _databaseService.UpdateServer(server);
+                    
+                    if (success)
+                    {
+                        return Ok(new { Message = "아이콘이 성공적으로 업로드되었습니다." });
+                    }
+                    else
+                    {
+                        return BadRequest("아이콘 업로드에 실패했습니다.");
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                return InternalServerError(ex);
+            }
+        }
+
+        [HttpDelete]
+        [Route("icon/{user}/{ip}")]
+        public IHttpActionResult DeleteServerIcon(string user, string ip)
+        {
+            try
+            {
+                var server = _databaseService.GetServerByUserAndIP(user, ip);
+                if (server == null)
+                {
+                    return NotFound();
+                }
+
+                server.Icon = null;
+                bool success = _databaseService.UpdateServer(server);
+                
+                if (success)
+                {
+                    return Ok(new { Message = "아이콘이 성공적으로 삭제되었습니다." });
+                }
+                else
+                {
+                    return BadRequest("아이콘 삭제에 실패했습니다.");
+                }
+            }
+            catch (Exception ex)
+            {
+                return InternalServerError(ex);
+            }
+        }
     }
 }

Web/Startup.cs

@@ -25,6 +25,9 @@ namespace VNCServerList.Web
             // JSON 포맷터 설정
             config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
             
+            // 파일 업로드 설정
+            config.Formatters.Remove(config.Formatters.XmlFormatter);
+            
             app.UseWebApi(config);
 
             // 정적 파일 서빙 설정

Web/wwwroot/index.html

@@ -63,6 +63,29 @@
                     <h3 id="modalTitle" class="text-lg font-semibold text-gray-800">서버 추가</h3>
                 </div>
                 <form id="serverForm" class="p-6">
+                    <!-- 아이콘 업로드 섹션 -->
+                    <div class="mb-4">
+                        <label class="block text-sm font-medium text-gray-700 mb-2">서버 아이콘</label>
+                        <div class="flex items-center space-x-4">
+                            <div class="w-16 h-16 border-2 border-dashed border-gray-300 rounded-lg flex items-center justify-center bg-gray-50">
+                                <img id="iconPreview" src="" alt="" class="w-12 h-12 object-contain hidden">
+                                <svg id="iconPlaceholder" class="w-8 h-8 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z"></path>
+                                </svg>
+                            </div>
+                            <div class="flex-1">
+                                <input type="file" id="iconFile" accept="image/*" class="hidden">
+                                <button type="button" id="selectIconBtn" class="w-full px-3 py-2 border border-gray-300 rounded-md text-sm text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-primary focus:border-transparent">
+                                    아이콘 선택
+                                </button>
+                                <button type="button" id="removeIconBtn" class="w-full mt-1 px-3 py-1 text-xs text-red-600 hover:text-red-800 focus:outline-none hidden">
+                                    아이콘 제거
+                                </button>
+                            </div>
+                        </div>
+                        <p class="text-xs text-gray-500 mt-1">PNG, JPG, GIF 형식 지원 (최대 1MB, 128x128 자동 리사이즈)</p>
+                    </div>
+
                     <div class="grid grid-cols-2 gap-4 mb-4">
                         <div>
                             <label for="serverIp" class="block text-sm font-medium text-gray-700 mb-2">IP 주소</label>
@@ -167,6 +190,15 @@
             <div class="flex items-center justify-between">
                 <div class="flex-1 cursor-pointer" onclick="app.connectToServer('{{userName}}', '{{serverIP}}')">
                     <div class="flex items-center space-x-3">
+                        <!-- 서버 아이콘 -->
+                        <div class="w-8 h-8 flex-shrink-0">
+                            <img id="icon-{{userName}}-{{serverIP}}" src="{{iconUrl}}" alt="" class="w-8 h-8 object-contain rounded" onerror="this.style.display='none'; this.nextElementSibling.style.display='block';">
+                            <div class="w-8 h-8 bg-gray-200 rounded flex items-center justify-center" style="display: none;">
+                                <svg class="w-5 h-5 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 12a9 9 0 01-9 9m9-9a9 9 0 00-9-9m9 9H3m9 9v-9m0-9v9"></path>
+                                </svg>
+                            </div>
+                        </div>
                         <div class="w-3 h-3 bg-green-500 rounded-full"></div>
                         <h4 class="text-lg font-medium text-gray-900 hover:text-blue-600 transition duration-200">{{serverName}}</h4>
                         <span class="text-xs text-gray-400 opacity-0 group-hover:opacity-100 transition duration-200">클릭하여 연결</span>

Web/wwwroot/js/app.js

@@ -72,7 +72,18 @@ class VNCServerApp {
             this.executeConfirmAction();
         });
 
+        // 아이콘 관련 이벤트
+        document.getElementById('selectIconBtn').addEventListener('click', () => {
+            document.getElementById('iconFile').click();
+        });
 
+        document.getElementById('iconFile').addEventListener('change', (e) => {
+            this.handleIconFileSelect(e);
+        });
+
+        document.getElementById('removeIconBtn').addEventListener('click', () => {
+            this.removeIconPreview();
+        });
     }
 
     async loadServerList() {
@@ -201,35 +212,101 @@ class VNCServerApp {
         }
     }
 
+    handleIconFileSelect(event) {
+        const file = event.target.files[0];
+        if (!file) return;
+
+        // 파일 크기 체크 (1MB)
+        if (file.size > 1024 * 1024) {
+            this.showError('파일 크기는 1MB를 초과할 수 없습니다.');
+            return;
+        }
+
+        // 이미지 크기 체크 (클라이언트 측에서 미리 확인)
+        const img = new Image();
+        img.onload = () => {
+            if (img.width > 128 || img.height > 128) {
+                this.showSuccess('이미지가 128x128로 자동 리사이즈됩니다.');
+            }
+            URL.revokeObjectURL(img.src); // 메모리 정리
+        };
+        img.src = URL.createObjectURL(file);
+
+        // 파일 타입 체크
+        if (!file.type.startsWith('image/')) {
+            this.showError('이미지 파일만 선택할 수 있습니다.');
+            return;
+        }
+
+        const reader = new FileReader();
+        reader.onload = (e) => {
+            const iconPreview = document.getElementById('iconPreview');
+            const iconPlaceholder = document.getElementById('iconPlaceholder');
+            const removeIconBtn = document.getElementById('removeIconBtn');
+
+            iconPreview.src = e.target.result;
+            iconPreview.classList.remove('hidden');
+            iconPlaceholder.classList.add('hidden');
+            removeIconBtn.classList.remove('hidden');
+        };
+        reader.readAsDataURL(file);
+    }
+
+    removeIconPreview() {
+        const iconPreview = document.getElementById('iconPreview');
+        const iconPlaceholder = document.getElementById('iconPlaceholder');
+        const removeIconBtn = document.getElementById('removeIconBtn');
+        const iconFile = document.getElementById('iconFile');
+
+        iconPreview.src = '';
+        iconPreview.classList.add('hidden');
+        iconPlaceholder.classList.remove('hidden');
+        removeIconBtn.classList.add('hidden');
+        iconFile.value = '';
+    }
+
     showServerModal(server = null) {
         const modal = document.getElementById('serverModal');
-        const title = document.getElementById('modalTitle');
+        const modalTitle = document.getElementById('modalTitle');
         const form = document.getElementById('serverForm');
 
-        console.log('서버 정보2:', server); // 디버깅용
-        
+        // 폼 초기화
+        form.reset();
+        this.removeIconPreview();
 
         if (server) {
-            title.textContent = '서버 편집';
+            // 편집 모드
+            modalTitle.textContent = '서버 편집';
             document.getElementById('serverIp').value = server.IP;
-            document.getElementById('serverCategory').value = server.Category || '';
-            document.getElementById('serverTitle').value = server.Title || '';
-            document.getElementById('serverDescription').value = server.Description || '';
             document.getElementById('serverPassword').value = server.Password || '';
+            document.getElementById('serverTitle').value = server.Title || '';
+            document.getElementById('serverCategory').value = server.Category || '';
+            document.getElementById('serverDescription').value = server.Description || '';
             document.getElementById('serverArgument').value = server.Argument || '';
-            // 편집 모드 플래그 설정
-            modal.dataset.editMode = 'true';
-            modal.dataset.editUser = server.User;
-            modal.dataset.editIp = server.IP;
+
+            // 아이콘 미리보기 설정
+            if (server.Icon) {
+                const iconPreview = document.getElementById('iconPreview');
+                const iconPlaceholder = document.getElementById('iconPlaceholder');
+                const removeIconBtn = document.getElementById('removeIconBtn');
+                
+                iconPreview.src = `${this.apiBase}/icon/${encodeURIComponent(server.User)}/${encodeURIComponent(server.IP)}`;
+                iconPreview.classList.remove('hidden');
+                iconPlaceholder.classList.add('hidden');
+                removeIconBtn.classList.remove('hidden');
+            }
+
+            form.dataset.editMode = 'true';
+            form.dataset.originalUser = server.User;
+            form.dataset.originalIp = server.IP;
         } else {
-            title.textContent = '서버 추가';
-            form.reset();
-            // 추가 모드 플래그 설정
-            modal.dataset.editMode = 'false';
-            delete modal.dataset.editUser;
-            delete modal.dataset.editIp;
+            // 추가 모드
+            modalTitle.textContent = '서버 추가';
+            delete form.dataset.editMode;
+            delete form.dataset.originalUser;
+            delete form.dataset.originalIp;
         }
-        
+
         modal.classList.remove('hidden');
     }
 
@@ -356,53 +433,77 @@ class VNCServerApp {
     }
 
     async saveServer() {
-        const serverIp = document.getElementById('serverIp').value;
-        const userName = document.getElementById('userName')?.value || '';
-        const modal = document.getElementById('serverModal');
-        const isEditMode = modal.dataset.editMode === 'true';
-        
-        if (!userName) {
-            this.showError('사용자 이름이 설정되지 않았습니다. 먼저 설정에서 사용자 이름을 입력해주세요.');
-            return;
-        }
-        
-        const serverData = {
-            user: userName,
-            ip: serverIp,
-            category: document.getElementById('serverCategory').value,
-            title: document.getElementById('serverTitle').value,
-            description: document.getElementById('serverDescription').value,
-            password: document.getElementById('serverPassword').value,
-            argument: document.getElementById('serverArgument').value
-        };
-
         try {
-            let url, method;
+            const form = document.getElementById('serverForm');
+            const userName = document.getElementById('userName')?.value || '';
             
-            if (isEditMode) {
-                // 편집 모드: 원본 사용자명과 IP를 쿼리 파라미터로 전달
-                const originalUser = modal.dataset.editUser;
-                const originalIp = modal.dataset.editIp;
-                url = `${this.apiBase}/update/${encodeURIComponent(originalUser)}/${encodeURIComponent(originalIp)}`;
-                method = 'PUT';
-            } else {
-                // 추가 모드
-                url = `${this.apiBase}/add`;
-                method = 'POST';
+            if (!userName) {
+                this.showError('사용자 이름을 먼저 설정해주세요.');
+                return;
             }
 
-            const response = await fetch(url, {
-                method: method,
-                headers: {
-                    'Content-Type': 'application/json'
-                },
-                body: JSON.stringify(serverData)
-            });
+            const serverData = {
+                User: userName,
+                IP: document.getElementById('serverIp').value,
+                Title: document.getElementById('serverTitle').value,
+                Category: document.getElementById('serverCategory').value,
+                Description: document.getElementById('serverDescription').value,
+                Password: document.getElementById('serverPassword').value,
+                Argument: document.getElementById('serverArgument').value
+            };
 
-            if (!response.ok) throw new Error('서버 저장에 실패했습니다.');
-            
-            const result = await response.json();
-            this.showSuccess(result.message);
+            // 아이콘 파일이 선택된 경우 Base64로 변환
+            const iconFile = document.getElementById('iconFile');
+            if (iconFile.files.length > 0) {
+                const file = iconFile.files[0];
+                const reader = new FileReader();
+                
+                reader.onload = async (e) => {
+                    // Base64 데이터에서 헤더 제거 (data:image/png;base64, 부분)
+                    const base64Data = e.target.result.split(',')[1];
+                    serverData.IconBase64 = base64Data;
+                    
+                    await this.submitServerData(serverData, form);
+                };
+                
+                reader.readAsDataURL(file);
+            } else {
+                await this.submitServerData(serverData, form);
+            }
+        } catch (error) {
+            this.showError('서버 저장 중 오류가 발생했습니다: ' + error.message);
+        }
+    }
+
+    async submitServerData(serverData, form) {
+        try {
+            let response;
+            const isEditMode = form.dataset.editMode === 'true';
+
+            if (isEditMode) {
+                // 편집 모드
+                const originalUser = form.dataset.originalUser;
+                const originalIp = form.dataset.originalIp;
+                response = await fetch(`${this.apiBase}/update/${encodeURIComponent(originalUser)}/${encodeURIComponent(originalIp)}`, {
+                    method: 'PUT',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify(serverData)
+                });
+            } else {
+                // 추가 모드
+                response = await fetch(`${this.apiBase}/add`, {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify(serverData)
+                });
+            }
+
+            if (!response.ok) {
+                const errorData = await response.json();
+                throw new Error(errorData.Message || '서버 저장에 실패했습니다.');
+            }
+
+            this.showSuccess(isEditMode ? '서버가 성공적으로 수정되었습니다.' : '서버가 성공적으로 추가되었습니다.');
             this.hideServerModal();
             this.loadServerList();
         } catch (error) {
@@ -543,54 +644,69 @@ class VNCServerApp {
     }
 
     renderCategoryNode(categoryName, categoryData, depth) {
-        const indent = depth * 20; // 들여쓰기
-        const hasSubcategories = Object.keys(categoryData.subcategories).length > 0;
-        const hasServers = categoryData.servers.length > 0;
-        const totalItems = categoryData.servers.length + Object.keys(categoryData.subcategories).length;
+        const indent = '  '.repeat(depth);
+        let html = '';
         
-        const headerData = {
-            categoryName: categoryName,
-            depth: depth,
-            bgClass: depth === 0 ? 'bg-gray-50' : 'bg-gray-25',
-            hasContent: hasSubcategories || hasServers,
-            totalItems: totalItems
-        };
+        // 카테고리 헤더
+        if (depth === 0) {
+            html += `<div class="category-header bg-gray-100 px-4 py-2 border-b border-gray-200">
+                <div class="flex items-center justify-between">
+                    <h3 class="text-lg font-semibold text-gray-800 flex items-center">
+                        <svg class="w-5 h-5 mr-2 text-gray-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10"></path>
+                        </svg>
+                        ${this.escapeHtml(categoryName)}
+                    </h3>
+                    <span class="text-sm text-gray-500">${categoryData.servers.length}개 서버</span>
+                </div>
+            </div>`;
+        } else {
+            html += `<div class="subcategory-header bg-gray-50 px-4 py-2 border-b border-gray-200 ml-${depth * 4}">
+                <div class="flex items-center justify-between">
+                    <h4 class="text-md font-medium text-gray-700 flex items-center">
+                        <svg class="w-4 h-4 mr-2 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z"></path>
+                        </svg>
+                        ${this.escapeHtml(categoryName)}
+                    </h4>
+                    <span class="text-sm text-gray-500">${categoryData.servers.length}개 서버</span>
+                </div>
+            </div>`;
+        }
         
-        let html = `
-            <div class="category-group" style="margin-left: ${indent}px;">
-                ${this.renderTemplate('categoryHeaderTemplate', headerData)}
-                <div class="category-content" id="category-${this.escapeHtml(categoryName)}-${depth}">
-        `;
-        
-        // 서버 목록 렌더링
-        if (hasServers) {
+        // 서버 목록
+        if (categoryData.servers.length > 0) {
             categoryData.servers.forEach(server => {
-                console.log('서버 데이터:', server); // 디버깅용
+                const serverName = server.Title || server.title || `${server.User || server.user} - ${server.IP || server.ip}`;
+                const serverIP = server.IP || server.ip;
+                const userName = server.User || server.user;
+                const serverCategory = server.Category || server.category;
+                const serverDescription = server.Description || server.description;
+                const serverArgument = server.Argument || server.argument;
+                
+                // 아이콘 URL 생성
+                const iconUrl = `${this.apiBase}/icon/${encodeURIComponent(userName)}/${encodeURIComponent(serverIP)}`;
+                
                 const serverData = {
-                    serverName: `${server.User || server.user}@${server.Title || server.title}`,
-                    userName: server.User || server.user,
-                    serverIP: server.IP || server.ip,
-                    serverCategory: server.Category || server.category,
-                    serverTitle: server.Title || server.title,
-                    serverDescription: server.Description || server.description,
-                    serverArgument: server.Argument || server.argument
+                    userName: userName,
+                    serverIP: serverIP,
+                    serverName: this.escapeHtml(serverName),
+                    serverCategory: this.escapeHtml(serverCategory),
+                    serverDescription: this.escapeHtml(serverDescription),
+                    serverArgument: this.escapeHtml(serverArgument),
+                    iconUrl: iconUrl
                 };
-                console.log('렌더링할 서버 데이터:', serverData); // 디버깅용
+                
                 html += this.renderTemplate('serverItemTemplate', serverData);
             });
         }
         
-        // 하위 카테고리 렌더링
-        const sortedSubcategories = Object.keys(categoryData.subcategories).sort();
-        sortedSubcategories.forEach(subcategoryName => {
-            html += this.renderCategoryNode(subcategoryName, categoryData.subcategories[subcategoryName], depth + 1);
+        // 하위 카테고리
+        const subcategories = Object.keys(categoryData.subcategories).sort();
+        subcategories.forEach(subcategory => {
+            html += this.renderCategoryNode(subcategory, categoryData.subcategories[subcategory], depth + 1);
         });
         
-        html += `
-                </div>
-            </div>
-        `;
-        
         return html;
     }