[C#/WPF/.NET8] 크롬 브라우저의 활성탭 웹 페이지에서 텍스트 추출하기 1
■ 크롬 브라우저의 활성탭 웹 페이지에서 텍스트를 추출하는 방법을 보여준다. ▶ ChromBrowserProcessHelper.cs
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using System; using System.Collections.Generic; using System.Diagnostics; using System.Runtime.InteropServices; using System.Text; using System.Threading; namespace TestProject; /// <summary> /// 크롬 브라우저 프로세스 헬퍼 /// </summary> public class ChromBrowserProcessHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Structure ////////////////////////////////////////////////////////////////////////////////////////// Private #region 사각형 - RECT /// <summary> /// 사각형 /// </summary> [StructLayout(LayoutKind.Sequential)] private struct RECT { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 왼쪽 /// </summary> public int Left; /// <summary> /// 위쪽 /// </summary> public int Top; /// <summary> /// 오른쪽 /// </summary> public int Right; /// <summary> /// 아래쪽 /// </summary> public int Bottom; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Delegate ////////////////////////////////////////////////////////////////////////////////////////// Public #region 윈도우 나열하기 대리자 - EnumerateWindowDelegate(windowHandle, longParameter) /// <summary> /// 윈도우 나열하기 대리자 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> public delegate bool EnumerateWindowDelegate(IntPtr windowHandle, IntPtr longParameter); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 윈도우 열거하기 - EnumWindows(enumerateWindowDelegate, longParameter) /// <summary> /// 윈도우 열거하기 /// </summary> /// <param name="enumerateWindowDelegate">윈도우 열거하기 대리자</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern bool EnumWindows(EnumerateWindowDelegate enumerateWindowDelegate, IntPtr longParameter); #endregion #region 윈도우 표시 여부 구하기 - IsWindowVisible(windowHandle) /// <summary> /// 윈도우 표시 여부 구하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <returns>윈도우 표시 여부</returns> [DllImport("user32")] private static extern bool IsWindowVisible(IntPtr windowHandle); #endregion #region 윈도우 제목 구하기 - GetWindowText(windowHandle, stringBuilder, maximumCount) /// <summary> /// 윈도우 제목 구하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="stringBuilder">문자열 빌더</param> /// <param name="maximumCount">최대 카운트</param> /// <returns>처리 결과</returns> [DllImport("user32", SetLastError = true)] private static extern int GetWindowText(IntPtr windowHandle, StringBuilder stringBuilder, int maximumCount); #endregion #region 윈도우 사각형 구하기 - GetWindowRect(windowHandle, rectangle) /// <summary> /// 윈도우 사각형 구하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="rectangle">사각형</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern bool GetWindowRect(IntPtr windowHandle, out RECT rectangle); #endregion #region 활성 윈도우 설정하기 - SetForegroundWindow(windowHandle) /// <summary> /// 활성 윈도우 설정하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern bool SetForegroundWindow(IntPtr windowHandle); #endregion #region 윈도우 스레드 프로세스 ID 구하기 - GetWindowThreadProcessId(windowHandle, processID) /// <summary> /// 윈도우 스레드 프로세스 ID 구하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="processID">프로세스 ID</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern uint GetWindowThreadProcessId(IntPtr windowHandle, out uint processID); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 크롬 브라우저 윈도우 정보 리스트 구하기 - GetChromeBrowserWindowInfoList() /// <summary> /// 크롬 브라우저 윈도우 정보 리스트 구하기 /// </summary> /// <returns></returns> public static List<WindowInformation> GetChromeBrowserWindowInfoList() { List<WindowInformation> windowInformationList = new List<WindowInformation>(); EnumWindows ( delegate(IntPtr windowHandle, IntPtr longParameter) { if(IsWindowVisible(windowHandle)) { uint processID; GetWindowThreadProcessId(windowHandle, out processID); try { Process process = Process.GetProcessById((int)processID); if(process.ProcessName.ToLower().Contains("chrome")) { StringBuilder stringBuilder = new StringBuilder(256); GetWindowText(windowHandle, stringBuilder, 256); GetWindowRect(windowHandle, out RECT rectangle); int width = rectangle.Right - rectangle.Left; int height = rectangle.Bottom - rectangle.Top; windowInformationList.Add ( new WindowInformation { WindowHandle = windowHandle, Title = stringBuilder.ToString(), ProcessID = processID, Width = width, Height = height } ); } } catch(ArgumentException) { } } return true; }, IntPtr.Zero ); return windowInformationList; } #endregion #region 메인 크롬 브라우저 윈도우 정보 구하기 - GetMainChromeBrowserWindowInformation(windowInformationList) /// <summary> /// 메인 크롬 브라우저 윈도우 정보 구하기 /// </summary> /// <param name="windowInformationList">윈도우 정보 리스트</param> /// <returns>윈도우 정보</returns> public static WindowInformation GetMainChromeBrowserWindowInformation(List<WindowInformation> windowInformationList) { if(windowInformationList == null || windowInformationList.Count == 0) { return null; } WindowInformation mainWindowInformation = null; int maximumArea = 0; foreach(WindowInformation windowInformation in windowInformationList) { int area = windowInformation.Width * windowInformation.Height; if(area > maximumArea) { maximumArea = area; mainWindowInformation = windowInformation; } } return mainWindowInformation; } #endregion #region 활성탭 정보 구하기 - GetActiveTabInformation(windowInformation) /// <summary> /// 활성탭 정보 구하기 /// </summary> /// <param name="windowInformation">윈도우 정보</param> /// <returns>URL/HTML 튜플</returns> public static (string url, string html) GetActiveTabInformation(WindowInformation windowInformation) { IntPtr windowHandle = windowInformation.WindowHandle; SetForegroundWindow(windowHandle); Thread.Sleep(300); // ALT 키를 누른다. System.Windows.Forms.SendKeys.SendWait("%"); Thread.Sleep(100); // 주소 창을 선택한다. System.Windows.Forms.SendKeys.SendWait("^{l}"); Thread.Sleep(10); // URL을 복사한다. System.Windows.Forms.SendKeys.SendWait("^{c}"); Thread.Sleep(10); // 클립보드에서 URL을 구한다. string url = System.Windows.Forms.Clipboard.GetText(); // 소스 보기 창을 연다. System.Windows.Forms.SendKeys.SendWait("^{u}"); Thread.Sleep(1000); // 전체 문자열을 선택한다. System.Windows.Forms.SendKeys.SendWait("^{a}"); Thread.Sleep(500); // HTML을 복사한다. System.Windows.Forms.SendKeys.SendWait("^{c}"); Thread.Sleep(100); // 클립보드에서 HTML을 가져온다. string html = System.Windows.Forms.Clipboard.GetText(); // 소스 창을 닫는다. System.Windows.Forms.SendKeys.SendWait("^{w}"); return (url, html); } #endregion } |
▶ HTMLHelper.cs
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using System; using System.Linq; using System.Text.RegularExpressions; using HtmlAgilityPack; namespace TestProject; /// <summary> /// HTML 헬퍼 /// </summary> public class HTMLHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 텍스트 추출하기 - ExtractText(html) /// <summary> /// 텍스트 추출하기 /// </summary> /// <param name="html">HTML</param> /// <returns>텍스트</returns> public static string ExtractText(string html) { HtmlDocument htmlDocument = new HtmlDocument(); htmlDocument.LoadHtml(html); return htmlDocument.DocumentNode.InnerText; } #endregion #region 문자열 정규화하기 - NormalizeString(sourceString) /// <summary> /// 문자열 정규화하기 /// </summary> /// <param name="sourceString">소스 문자열</param> /// <returns>정규화 문자열</returns> /// <remarks> /// 1. 각 줄의 문자열의 앞뒤 공백을 제거한다. /// 2. 빈줄이 반복되는 경우 1개의 빈줄로 만든다. /// </remarks> public static string NormalizeString(string sourceString) { string[] sourceLineArray = sourceString.Split(new[] { "\r\n", "\r", "\n" }, StringSplitOptions.None); string[] targetLineArray = sourceLineArray.Select(line => line.Trim()).ToArray(); string joinedString = string.Join(Environment.NewLine, targetLineArray); string targetString = Regex.Replace(joinedString, @"(\r\n|\n){2,}", Environment.NewLine + Environment.NewLine); return targetString; } #endregion } |
▶ WindowHelper.cs
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using System; using System.Runtime.InteropServices; using System.Windows; using System.Windows.Interop; namespace TestProject; /// <summary> /// 윈도우 헬퍼 /// </summary> public static class WindowHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 활성 윈도우 설정하기 - SetForegroundWindow(windowHandle) /// <summary> /// 활성 윈도우 설정하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern bool SetForegroundWindow(IntPtr windowHandle); #endregion #region 윈도우 표시하기 - ShowWindow(windowHandle, command) /// <summary> /// 윈도우 표시하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="command">명령</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern bool ShowWindow(IntPtr windowHandle, int command); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// SW_SHOW /// </summary> private const int SW_SHOW = 5; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 윈도우 앞으로 가져오기 - BringToFront(window) /// <summary> /// 윈도우 앞으로 가져오기 /// </summary> /// <param name="window">윈도우</param> public static void BringToFront(Window window) { WindowInteropHelper windowInteropHelper = new WindowInteropHelper(window); nint windowHandle = windowInteropHelper.Handle; ShowWindow(windowHandle, SW_SHOW); SetForegroundWindow(windowHandle); } #endregion } |
▶ WindowInformation.cs
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using System; namespace TestProject; /// <summary> /// 윈도우 정보 /// </summary> public class WindowInformation { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 윈도우 핸들 - WindowHandle /// <summary> /// 윈도우 핸들 /// </summary> public IntPtr WindowHandle { get; set; } #endregion #region 제목 - Title /// <summary> /// 제목 /// </summary> public string Title { get; set; } #endregion #region 프로세스 ID - ProcessID /// <summary> /// 프로세스 ID /// </summary> public uint ProcessID { get; set; } #endregion #region 너비 - Width /// <summary> /// 너비 /// </summary> public int Width { get; set; } #endregion #region 높이 - Height /// <summary> /// 높이 /// </summary> public int Height { get; set; } #endregion } |
