sigmak90lab

제목은 저렇게 지어봤는데 작업하면서

jpg, png, gif, mp4 까지 다 지원되게 webbrowser 컨트롤을 이용했음....(머쓱..)

[사용법]

url 입력

이미지파일등이 포함되어 있는 태그명 입력, 속성명 입력, 이미지파일등의 확장자 선택

run 버튼 클릭

왼쪽 리스트 박스에 리스트가 나오면 해당 항목 선택하면 우측에 이미지나 동영상이 표시됨.

(이미지 파일등이 포함된 태그를 찾을려면 해당 사이트를 웹브라워저로 접속해서 소스보기 에서 참고하세요.)

주의 사항 :

이미지 파일등이 많은 사이트에 접속하면 블럭 당할수도 있으니

주의하세요....ㅜ.ㅜ;

소스파일 :

실행파일 :

1. 화면디자인

2. 메인코드

/*
 * Created by SharpDevelop.
 * User: dwkang161
 * Date: 2019-06-14
 * Time: 오전 11:54
 * 
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

using System.Net;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;

namespace webImagesPreview
{
    /// <summary>
    /// Description of MainForm.
    /// </summary>
    ///
    public partial class MainForm : Form
    {
        public MainForm()
        {
            //
            // The InitializeComponent() call is required for Windows Forms designer support.
            //
            InitializeComponent();
            
            //
            // TODO: Add constructor code after the InitializeComponent() call.
            //
            webBrowser1.Navigate("about:blank");

        }

        void MainFormLoad(object sender, EventArgs e)
        {
            txtUrl.Text = "https://www.wikipedia.org/";
            txtStag.Text = "link";//"a";
            txtSattr.Text="href";
            //txtSwords.Text ="jpg";
            
        }

        void Button1Click(object sender, EventArgs e)
        {
            //getImgs(txtUrl.Text); //---
            WebRequest request = WebRequest.Create(txtUrl.Text);
            request.Credentials = CredentialCache.DefaultCredentials;
            
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
             
            Encoding encode;
            if (response.CharacterSet.ToLower() == "utf-8") { encode = Encoding.UTF8; }
            else { encode = Encoding.Default; }

            Stream dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream, encode);
 
            string responseFromServer = reader.ReadToEnd();            


            dataStream.Close();
            reader.Close();
            txtContent.Text ="";
            txtContent.Text=responseFromServer;
            
            //http://kaliko.com/blog/extract-image-tags-from-html-in-c/
            List<string> images = new List<string>();
            //string pattern = @"<(a)\b[^>]*>"; // a 태그 찾기 @"<(a)\b[^>]*>"
            string pattern = @"<(" + txtStag.Text + ")\\b[^>]*>"; // a 태그 찾기 @"<(a)\b[^>]*>"

            
            Regex rgx = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Singleline);
            MatchCollection matches = rgx.Matches(responseFromServer);

            
            
            listBox1.Items.Clear();
            
            XmlDocument doc = new XmlDocument();
            int CntJpg=0;
            int CntPng=0;
            int CntGif=0;
            int CntMp4=0;

            for(int i=0, l=matches.Count; i<l; i++) {
                
                // 위에서 가져온 <img ...> 태그 형태에 </img>태그를 붙여서
                // xml 태그 형태로 만든다음
                doc.LoadXml(matches[i].Value + "</" + txtStag.Text  + ">");  // "</a>"  
                
                
                //doc.SelectNodes("//img/@src") 를 이용해서 img 태그의  src 속성값만 뽑아와서
                //출처 : http://stackoverflow.com/questions/1100156/how-to-select-nodes-with-xpath-in-c
                foreach (XmlNode node in doc.SelectNodes("//"+ txtStag.Text  + "/@" + txtSattr.Text )){  //"//a/@href"
                //foreach (XmlNode node in doc.SelectNodes("//a/@href" )){  //"//a/@href"                

                    if (rbJpg.Checked==true){ //jpg 이면
                        if ((node.InnerText).Contains(".jpg")){   
                               listBox1.Items.Add(node.InnerText);
                            CntJpg++;
                        }
                    }else if (rbPng.Checked==true){ //png 이면
                        if ((node.InnerText).Contains(".png")){   
                               listBox1.Items.Add(node.InnerText);
                            CntPng++;
                        }
                    }else if (rbGif.Checked==true){ //gif 이면
                        if ((node.InnerText).Contains(".gif")){   
                               listBox1.Items.Add(node.InnerText);
                            CntGif++;
                        }
                    }else if (rbMp4.Checked==true){ //mp4 이면
                        if ((node.InnerText).Contains(".mp4")){   
                               listBox1.Items.Add(node.InnerText);
                            CntMp4++;
                        }
                    }
                
                }
                doc.RemoveAll();
            }      

          MessageBox.Show(listBox1.Items.Count.ToString());

        }
        void ListBox1SelectedIndexChanged(object sender, EventArgs e)
        {
/*            
            pictureBox1.Image=null;
            pictureBox1.ImageLocation=txtUrl.Text + listBox1.SelectedItem.ToString();
            pictureBox1.SizeMode =PictureBoxSizeMode.StretchImage;
*/            
            
/* */            
            //webBrowser1.DocumentText = "<html><body></img></body></html>";
             //MessageBox.Show("test1");
             
            String htmlText ="<html><body></img></body></html>";
            
            if (rbJpg.Checked==true){ //jpg 이면
                //<img src="이미지경로" width="100" height="200">
                htmlText="<html><body>"
                        +  (listBox1.SelectedIndex+1) +  "<img src='" + txtUrl.Text + listBox1.SelectedItem.ToString() + "' >"
                        + "</body></html>"; 

            }else if (rbPng.Checked==true){ //gif 이면
                htmlText="<html><body>"
                        +  (listBox1.SelectedIndex+1) +  "<img src='" + txtUrl.Text + listBox1.SelectedItem.ToString() + "' >"
                        + "</body></html>"; 

            }else if (rbGif.Checked==true){ //gif 이면
                htmlText="<html><body>"
                        +  (listBox1.SelectedIndex+1) +  "<img src='" + txtUrl.Text + listBox1.SelectedItem.ToString() + "' >"
                        + "</body></html>"; 

            }else if (rbMp4.Checked==true){ //mp4 이면
                // 
                htmlText = "<!DOCTYPE html>"
                         + "<html>"
                         + "<head>"
                         + "<meta http-equiv='Content-Type' content='text/html; charset=unicode' />"
                         + "<meta http-equiv='X-UA-Compatible' content='IE=9' /> "
                         + "<title></title>"
                         + "</head>"
                         + "<body>"
                         + "<div>"
                         +  (listBox1.SelectedIndex+1) +  "<video autoplay='autoplay' preload='metadata' width='480' height='340' controls>"
                         + "<source src='" + txtUrl.Text + listBox1.SelectedItem.ToString() + "' type='video/mp4' />"
                         + "<object id='ie_player' width='480' height='340'>"
                         + "<param name='AutoStart' value='true'>"
                         + "<param name='PlayCount' value='1'>"
                         + "<param name='ShowControls' value='true'>"
                         + "</object>"
                         + "</video>"
                         + "</div>"
                         + "</body>"
                         + "</html>";
                
           }
            
            webBrowser1.Navigate("about:blank");
            webBrowser1.Document.OpenNew(false);
            webBrowser1.Document.Write(htmlText);
            webBrowser1.Refresh();
/* */            
    
        }
        
    }
}

3. 실행결과 캡쳐