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Java 네트워크 - 6 본문

오래된글/Java

Java 네트워크 - 6

Andrew's Akashic Records 2018. 4. 9. 11:08
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9. URLConnection

① package acdpu.pki.applet;

② import javax.swing.JApplet;

③ import java.awt.Dimension;

④ import java.awt.Toolkit;

⑤ import java.awt.BorderLayout;

⑥ import javax.swing.JFrame;

⑦ import javax.swing.UIManager;

⑧ import javax.swing.JLabel;

⑨ import java.awt.Rectangle;

⑩ import javax.swing.JPanel;

⑪ import javax.swing.BorderFactory;

⑫ import javax.swing.JScrollPane;

⑬ import javax.swing.JTextPane;

⑭ import javax.swing.JTextField;

⑮ import javax.swing.JButton;

16 import javax.swing.JPasswordField;

17 import java.awt.event.ActionListener;

18 import java.awt.event.ActionEvent;

19 import java.net.*;

20 import java.io.*;

21 import java.security.*;

22 import java.applet.*;

23

24 public class createPKIApplet extends JApplet {

25

26 // 객체 생성

27 private JLabel topLabel = new JLabel(); // 상단 라벨

28 private JScrollPane messageScrollPane = new JScrollPane(); // 하단 메시지창 스크롤

29 private JTextPane messageTextPane = new JTextPane(); // 하단 메시지창

30 private JTextField userid = new JTextField(); // 사용자 아이디 입력

31 private JPasswordField passwd = new JPasswordField(); // 사용자 암호 입력

32 private JButton submit = new JButton(); // 전송 버튼

33 private JButton reset = new JButton(); // 리셋

34 private JButton create = new JButton();

35 private JButton login = new JButton();

36

37 private final String serverIp = "10.60.34.202";

38 private final int serverPort = 8888;

39

40 public createPKIApplet() {

41 }

42

43 public void init() {

44

45 try {

46 jbInit();

47 } catch(Exception e) {

48 e.printStackTrace();

49 }

50 }

51

52 private void jbInit() throws Exception {

53 this.getContentPane().setLayout(null);

54 this.setSize(new Dimension(524, 397));

55

56 // 상단 라벨

57 topLabel.setText("인증키생성");

58 topLabel.setBounds(new Rectangle(0, 0, 525, 30));

59

60 // 사용자 아이디

61 userid.setBounds(new Rectangle(15, 35, 280, 65));

62 userid.setBorder(BorderFactory.createTitledBorder("UserId"));

63

64 // 사용자 암호

65 passwd.setBounds(new Rectangle(15, 115, 280, 60));

66 passwd.setBorder(BorderFactory.createTitledBorder("PassWord"));

67

68 // 전송 버튼

69 submit.setText("전송");

70 submit.setBounds(new Rectangle(85, 215, 125, 40));

71 submit.addActionListener(new ActionListener() {

72 public void actionPerformed(ActionEvent e) {

73 submit_actionPerformed(e);

74 }

75 });

76

77 // 리렛 버튼

78 reset.setText("재입력");

79 reset.setBounds(new Rectangle(305, 215, 125, 40));

80 reset.addActionListener(new createPKIApplet_reset_actionAdapter(this));

81 create.setText("인증서생성");

82 create.setBounds(new Rectangle(355, 40, 115, 40));

83 create.setActionCommand("create");

84 create.setEnabled(false);

85 login.setText("로그인");

86 login.setBounds(new Rectangle(355, 95, 115, 40));

87 login.setActionCommand("login");

88 login.addActionListener(new ActionListener() {

89 public void actionPerformed(ActionEvent e) {

90 login_actionPerformed(e);

91 }

92 });

93

94 // 스크롤 상자

95 messageScrollPane.setBounds(new Rectangle(10, 290, 505, 80));

96 messageScrollPane.setBorder(BorderFactory.createTitledBorder("Message"));

97 messageScrollPane.setAutoscrolls(true);

98

99 // 메시지 창

100 messageTextPane.setText("인증 서버연결 준비중...");

101 messageTextPane.setEditable(false);

102 messageScrollPane.getViewport().add(messageTextPane, null);

103

104 this.getContentPane().add(login, null);

105 this.getContentPane().add(create, null);

106 this.getContentPane().add(passwd, null);

107 this.getContentPane().add(reset, null);

108 this.getContentPane().add(submit, null);

109 this.getContentPane().add(userid, null);

110 this.getContentPane().add(messageScrollPane, null);

111 this.getContentPane().add(topLabel, null);

112 }

113

114 static {

115 try {

116 // UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

117 // UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());

118 } catch(Exception e) {

119 }

120 }

121

122 void reset_actionPerformed(ActionEvent e) {

123 userid.setText("");

124 passwd.setText("");

125 userid.setEditable(true);

126 passwd.setEditable(true);

127 setMessage("입력 창이 초기화 되었습니다.");

128 }

129

130 private void setMessage(String message) {

131 messageTextPane.setText(messageTextPane.getText()+"\n"+message);

132 }

133

134 private void submit_actionPerformed(ActionEvent e) {

135 userid.setEditable(false);

136 passwd.setEditable(false);

137 String userEnterText = userid.getText();

138 String passEnterText = new String(passwd.getPassword());

139 setMessage("인증서버에 접속중입니다.... ");

140

141 try{

142 URL url = new URL("http",

143 serverIp,

144 serverPort,

145 "/createpki?userid="+userEnterText+

146 "&passwd="+passEnterText);

147 URLConnection urlcon = url.openConnection();

148 String contentType = urlcon.getContentType();

149

150 // 테스트 출력

151 //setMessage(contentType);

152

153 InputStream in = urlcon.getInputStream();

154

155 if(contentType.equalsIgnoreCase("text/html;euc-kr")) {

156 // 인증서가 정상적으로 발급되지 않은 경우 실행

157 BufferedReader inre = new BufferedReader(

158 new InputStreamReader(

159 in));

160 setMessage("ERROR) : 다음과 같은 에러가 발생하였습니다.");

161 String errorMessage = inre.readLine();

162

163 if(errorMessage.equals("1"))

164 setMessage("인증성 생성에 실패 하였습니다.");

165 else if(errorMessage.equals("2"))

166 setMessage("사용자가 틀림니다. 아이디와 비밀번호를 확인해 주십시요.");

167 else if(errorMessage.equals("3"))

168 setMessage("사용기간이 지났거나 시작되지 않았습니다.");

169 else

170 setMessage("인증서버 접속에 실패하였습니다. 관리자에 문의하십시요.");

171 in.close();

172

173 } else {

174 // 인증서 클라이언트 PC에 저장

175 String filePath = "C:/peace";

176 File file = new File(filePath);

177 if(!file.exists()){

178 file.mkdir();

179 }

180 ObjectInputStream obin = new ObjectInputStream(in);

181 PrivateKey privatekey = (PrivateKey)obin.readObject();

182 ObjectOutputStream out = new ObjectOutputStream(

183 new FileOutputStream(

184 new File(

185 file,

186 userEnterText+"PRI.ser")));

187 out.writeObject(privatekey);

188 obin.close();

189 in.close();

190 out.close();

191 setMessage("인증키 발급이 성공되었습니다. 다음과 위치에 인증키가 저장되었습니다.");

192 setMessage(filePath+"/"+userEnterText+"PRI.ser");

193 }

194 } catch (MalformedURLException mfurle) {

195 setMessage(mfurle.getMessage());

196 } catch (IOException ioe) {

197 setMessage(ioe.getMessage());

198 } catch (ClassNotFoundException cnote) {

199 setMessage(cnote.getMessage());

200 }

201 }

202

203 private void login_actionPerformed(ActionEvent e) {

204 try{

205 AppletContext cont = getAppletContext();

206 cont.showDocument(

207 new URL("http://"+serverIp+":"+serverPort+"/applet/loginApplet.jsp"));

208 } catch (MalformedURLException mfurle) {

209 setMessage(mfurle.getMessage());

210 }

211 }

212 }

213 class createPKIApplet_reset_actionAdapter implements ActionListener {

214 createPKIApplet adaptee;

215

216 createPKIApplet_reset_actionAdapter(createPKIApplet adaptee) {

217 this.adaptee = adaptee;

218 }

219

220 public void actionPerformed(ActionEvent e) {

221 adaptee.reset_actionPerformed(e);

222 }

223 }


① package acdpu.pki.applet;

② import javax.swing.JApplet;

③ import java.awt.Dimension;

④ import java.awt.Toolkit;

⑤ import java.awt.BorderLayout;

⑥ import javax.swing.JFrame;

⑦ import javax.swing.UIManager;

⑧ import javax.swing.JLabel;

⑨ import java.awt.Rectangle;

⑩ import javax.swing.JPanel;

⑪ import javax.swing.BorderFactory;

⑫ import javax.swing.JScrollPane;

⑬ import javax.swing.JTextPane;

⑭ import javax.swing.JTextField;

⑮ import javax.swing.JButton;

16 import javax.swing.JPasswordField;

17 import java.awt.event.ActionListener;

18 import java.awt.event.ActionEvent;

19 import java.net.*;

20 import java.io.*;

21 import java.security.*;

22 import kr.co.itnext.crypto.*;

23 import java.applet.*;

24

25 public class loginPKIApplet extends JApplet {

26

27 // 객체 생성

28 private JLabel topLabel = new JLabel(); // 상단 라벨

29 private JScrollPane messageScrollPane = new JScrollPane(); // 하단 메시지창 스크롤

30 private JTextPane messageTextPane = new JTextPane(); // 하단 메시지창

31 private JTextField userid = new JTextField(); // 사용자 아이디 입력

32 private JPasswordField passwd = new JPasswordField(); // 사용자 암호 입력

33 private JButton submit = new JButton(); // 전송 버튼

34 private JButton reset = new JButton(); // 리셋

35 private JButton create = new JButton();

36 private JButton login = new JButton();

37

38 private final String serverIp = "10.60.34.202";

39 private final int serverPort = 8888;

40

41 public loginPKIApplet() {

42 }

43

44 public void init() {

45

46 try {

47 jbInit();

48 } catch(Exception e) {

49 e.printStackTrace();

50 }

51 }

52

53 private void jbInit() throws Exception {

54 this.getContentPane().setLayout(null);

55 this.setSize(new Dimension(524, 397));

56

57 // 상단 라벨

58 topLabel.setText("PKI 로그인");

59 topLabel.setBounds(new Rectangle(0, 0, 525, 30));

60

61 // 사용자 아이디

62 userid.setBounds(new Rectangle(15, 35, 280, 65));

63 userid.setBorder(BorderFactory.createTitledBorder("UserId"));

64

65 // 사용자 암호

66 passwd.setBounds(new Rectangle(15, 115, 280, 60));

67 passwd.setBorder(BorderFactory.createTitledBorder("PassWord"));

68

69 // 전송 버튼

70 submit.setText("로그인");

71 submit.setBounds(new Rectangle(85, 215, 125, 40));

72 submit.addActionListener(new ActionListener() {

73 public void actionPerformed(ActionEvent e) {

74 submit_actionPerformed(e);

75 }

76 });

77

78 // 리렛 버튼

79 reset.setText("재입력");

80 reset.setBounds(new Rectangle(305, 215, 125, 40));

81 reset.addActionListener(new loginPKIApplet_reset_actionAdapter(this));

82 create.setText("인증서생성");

83 create.setBounds(new Rectangle(355, 40, 115, 40));

84 create.setActionCommand("create");

85 create.addActionListener(new ActionListener() {

86 public void actionPerformed(ActionEvent e) {

87 create_actionPerformed(e);

88 }

89 });

90 login.setText("로그인");

91 login.setBounds(new Rectangle(355, 95, 115, 40));

92 login.setActionCommand("login");

93 login.setEnabled(false);

94

95 // 스크롤 상자

96 messageScrollPane.setBounds(new Rectangle(10, 290, 505, 80));

97 messageScrollPane.setBorder(BorderFactory.createTitledBorder("Message"));

98 messageScrollPane.setAutoscrolls(true);

99

100 // 메시지 창

101 messageTextPane.setText("사용자 아이디와 비밀번호를 입력하여 주십시요...");

102 messageTextPane.setEditable(false);

103 messageScrollPane.getViewport().add(messageTextPane, null);

104 this.getContentPane().add(login, null);

105

106 this.getContentPane().add(create, null);

107 this.getContentPane().add(passwd, null);

108 this.getContentPane().add(reset, null);

109 this.getContentPane().add(submit, null);

110 this.getContentPane().add(userid, null);

111 this.getContentPane().add(messageScrollPane, null);

112 this.getContentPane().add(topLabel, null);

113 }

114

115 static {

116 try {

117 // UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

118 // UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());

119 } catch(Exception e) {

120 }

121 }

122

123 void reset_actionPerformed(ActionEvent e) {

124 userid.setText("");

125 passwd.setText("");

126 userid.setEditable(true);

127 passwd.setEditable(true);

128 setMessage("입력 창이 초기화 되었습니다.");

129 }

130

131 private void setMessage(String message) {

132 messageTextPane.setText(messageTextPane.getText()+"\n"+message);

133 }

134

135 private void submit_actionPerformed(ActionEvent e) {

136 userid.setEditable(false);

137 passwd.setEditable(false);

138 String userEnterText = userid.getText();

139 String passEnterText = new String(passwd.getPassword());

140 setMessage("인증서버에 접속중입니다.... ");

141

142 try{

143 URL url = new URL("http",serverIp,serverPort,"/loginpki");

144 URLConnection urlcon = url.openConnection();

145 urlcon.setDoInput(true);

146 urlcon.setDoOutput(true);

147 urlcon.setUseCaches(false);

148

149 String privateKeyFile = "C:/peace/"+userEnterText+"PRI.ser";

150 File file = new File(privateKeyFile);

151 byte[] signningrow = null;

152 if(!file.exists()){

153 setMessage("인증서가 존재하지 않습니다.");

154 //System.exit(0);

155 } else {

156 setMessage("sign 데이터 생성중입니다. ");

157 try {

158 Signature signning = Signature.getInstance("DSA");

159 ObjectInputStream keyin = new ObjectInputStream(new FileInputStream(file));

160 PrivateKey privatekey = (PrivateKey)keyin.readObject();

161 keyin.close();

162 signning.initSign(privatekey);

163 signning.update((userEnterText+passEnterText).getBytes());

164 signningrow = signning.sign();

165 BASE64Encoder encoder = new BASE64Encoder();

166 String base64Signning = encoder.encode(signningrow);

167 urlcon.setRequestProperty("userid",userEnterText);

168 urlcon.setRequestProperty("passwd",passEnterText);

169 urlcon.setRequestProperty("signningdata",base64Signning);

170 urlcon.connect();

171

172 setMessage("sign 데이터를 전송중입니다.... ");

173 } catch(NoSuchAlgorithmException noalgoe) {

174 setMessage("signning 알고리즘이 없습니다.");

175 //System.exit(0);

176 } catch(ClassNotFoundException cnotfe) {

177 setMessage("PC에 저장된 개인키를 생성할수 없습니다.");

178 //System.exit(0);

179 } catch(InvalidKeyException inkeye) {

180 setMessage("부적합한 개인키를 소유하고 있습니다.");

181 //System.exit(0);

182 } catch(SignatureException signe) {

183 setMessage("개인키 서명중 에러가 발생하였습니다.");

184 //System.exit(0);

185 }

186 }

187

188 BufferedReader inre =

189 new BufferedReader(new InputStreamReader(urlcon.getInputStream()));

190 String receiveMessage = inre.readLine();

191

192

193 if(receiveMessage.equals("0")) {

194 setMessage("로그인 페이지로 이동합니다.");

195 AppletContext cont = getAppletContext();

196 cont.showDocument(new URL(

197 "http://"+serverIp+":"+serverPort+"/login.jsp?f_userid="+userEnterText+

198 "&f_passwd="+passEnterText));

199

200 } else if(receiveMessage.equals("1")) {

201 setMessage("인증서가 구형이거나 정상적인 인증서가 아님니다.");

202 } else if(receiveMessage.equals("2")) {

203 setMessage("사용자가 틀림니다. 아이디와 비밀번호를 확인해 주십시요.");

204 } else if(receiveMessage.equals("3")) {

205 setMessage("사용기간이 지났거나 시작되지 않았습니다.");

206 } else {

207 setMessage("인증서버 접속에 실패하였습니다. 관리자에 문의하십시요.");

208 }

209 inre.close();

210

211 } catch (MalformedURLException mfurle) {

212 setMessage(mfurle.getMessage());

213 } catch (IOException ioe) {

214 setMessage(ioe.getMessage());

215 }

216 }

217

218 private void create_actionPerformed(ActionEvent e) {

219 try{

220 AppletContext cont = getAppletContext();

221 cont.showDocument(new URL(

222 "http://"+serverIp+":"+serverPort+

223 "/applet/createApplet.jsp"));

224 } catch (MalformedURLException mfurle) {

225 setMessage(mfurle.getMessage());

226 }

227

228 }

229 }

230 class loginPKIApplet_reset_actionAdapter implements ActionListener {

231 loginPKIApplet adaptee;

232

233 loginPKIApplet_reset_actionAdapter(loginPKIApplet adaptee) {

234 this.adaptee = adaptee;

235 }

236

237 public void actionPerformed(ActionEvent e) {

238 adaptee.reset_actionPerformed(e);

239 }

240 }



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