Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/transport/TN5250.java @ 54:a7e660661e08 tn5250
start tn5250 integration
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Wed, 11 Jun 2014 14:01:43 -0700 |
| parents | e872762ec105 |
| children | e0c68988fe2e |
| rev | line source |
|---|---|
| 11 | 1 /* |
| 2 * 510ConnectBot | |
| 3 * Copyright 2014 Carl Byington | |
| 4 * | |
| 5 * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 * you may not use this file except in compliance with the License. | |
| 7 * You may obtain a copy of the License at | |
| 8 * | |
| 9 * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 * | |
| 11 * Unless required by applicable law or agreed to in writing, software | |
| 12 * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 * See the License for the specific language governing permissions and | |
| 15 * limitations under the License. | |
| 16 */ | |
| 17 | |
| 18 package com.five_ten_sg.connectbot.transport; | |
| 19 | |
| 20 import java.io.IOException; | |
| 21 import java.io.InputStream; | |
| 22 import java.io.OutputStream; | |
| 23 import java.net.Socket; | |
| 24 import java.net.SocketException; | |
| 13 | 25 import java.net.UnknownHostException; |
|
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26 import java.util.HashMap; |
| 11 | 27 import java.util.List; |
| 28 import java.util.Map; | |
| 13 | 29 import java.util.regex.Matcher; |
| 30 import java.util.regex.Pattern; | |
| 11 | 31 |
| 12 | 32 import org.tn5250j.framework.tn5250.Screen5250; |
| 33 import org.tn5250j.framework.tn5250.tnvt; | |
| 34 | |
| 13 | 35 import com.five_ten_sg.connectbot.R; |
| 11 | 36 import com.five_ten_sg.connectbot.bean.HostBean; |
| 37 import com.five_ten_sg.connectbot.bean.PortForwardBean; | |
| 38 import com.five_ten_sg.connectbot.service.TerminalBridge; | |
|
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39 import com.five_ten_sg.connectbot.service.TerminalKeyListener; |
| 11 | 40 import com.five_ten_sg.connectbot.service.TerminalManager; |
| 41 import com.five_ten_sg.connectbot.util.HostDatabase; | |
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42 import com.five_ten_sg.connectbot.util.PreferenceConstants; |
| 11 | 43 import android.content.Context; |
| 44 import android.net.Uri; | |
| 13 | 45 import android.util.Log; |
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46 import android.view.KeyCharacterMap; |
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47 import android.view.KeyEvent; |
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48 import android.view.View; |
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49 import de.mud.terminal.vt320; |
| 11 | 50 |
| 51 | |
| 52 /** | |
| 53 * @author Carl Byington | |
| 54 * | |
| 55 */ | |
| 56 public class TN5250 extends AbsTransport { | |
| 57 private static final String PROTOCOL = "tn5250"; | |
| 58 private static final String TAG = "ConnectBot.tn5250"; | |
| 59 private static final int DEFAULT_PORT = 23; | |
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60 |
| 11 | 61 private Screen5250 screen52; |
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62 private tnvt handler = null; |
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63 private Socket socket; |
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64 private boolean connected = false; |
| 11 | 65 |
| 12 | 66 static final Pattern hostmask; |
| 67 static { | |
| 68 hostmask = Pattern.compile("^([0-9a-z.-]+)(:(\\d+))?$", Pattern.CASE_INSENSITIVE); | |
| 69 } | |
| 70 | |
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71 |
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72 class vt320x5250 extends vt320 { |
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73 private HashMap<Integer, String> mnemonics; |
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74 |
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75 public vt320x5250() { |
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76 this(80,24); |
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77 } |
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78 |
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79 public vt320x5250(int width, int height) { |
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80 super(width, height); |
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81 mnemonics = new HashMap<Integer, String>(); |
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82 mnemonics.put(KEY_PAUSE , "[attn]"); |
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83 mnemonics.put(KEY_F1 , "[pf1]"); |
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84 mnemonics.put(KEY_F2 , "[pf2]"); |
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85 mnemonics.put(KEY_F3 , "[pf3]"); |
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86 mnemonics.put(KEY_F4 , "[pf4]"); |
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87 mnemonics.put(KEY_F5 , "[pf5]"); |
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88 mnemonics.put(KEY_F6 , "[pf6]"); |
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89 mnemonics.put(KEY_F7 , "[pf7]"); |
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90 mnemonics.put(KEY_F8 , "[pf8]"); |
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91 mnemonics.put(KEY_F9 , "[pf9]"); |
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92 mnemonics.put(KEY_F10 , "[pf10]"); |
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93 mnemonics.put(KEY_F11 , "[pf11]"); |
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94 mnemonics.put(KEY_F12 , "[pf12]"); |
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95 mnemonics.put(KEY_UP , "[up]"); |
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96 mnemonics.put(KEY_DOWN , "[down]"); |
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97 mnemonics.put(KEY_LEFT , "[left]"); |
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98 mnemonics.put(KEY_RIGHT , "[right]"); |
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99 mnemonics.put(KEY_PAGE_DOWN , "[pgdown]"); |
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100 mnemonics.put(KEY_PAGE_UP , "[pgup]"); |
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101 mnemonics.put(KEY_INSERT , "[insert]"); |
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102 mnemonics.put(KEY_DELETE , "[delete]"); |
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103 mnemonics.put(KEY_BACK_SPACE , "[backspace]"); |
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104 mnemonics.put(KEY_HOME , "[home]"); |
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105 mnemonics.put(KEY_END , "[end]"); |
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106 mnemonics.put(KEY_NUM_LOCK , ""); |
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107 mnemonics.put(KEY_CAPS_LOCK , ""); |
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108 mnemonics.put(KEY_SHIFT , ""); |
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109 mnemonics.put(KEY_CONTROL , ""); |
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110 mnemonics.put(KEY_ALT , ""); |
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111 mnemonics.put(KEY_ENTER , ""); |
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112 mnemonics.put(KEY_NUMPAD0 , "0"); |
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113 mnemonics.put(KEY_NUMPAD1 , "1"); |
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114 mnemonics.put(KEY_NUMPAD2 , "2"); |
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115 mnemonics.put(KEY_NUMPAD3 , "3"); |
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116 mnemonics.put(KEY_NUMPAD4 , "4"); |
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117 mnemonics.put(KEY_NUMPAD5 , "5"); |
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118 mnemonics.put(KEY_NUMPAD6 , "6"); |
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119 mnemonics.put(KEY_NUMPAD7 , "7"); |
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120 mnemonics.put(KEY_NUMPAD8 , "8"); |
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121 mnemonics.put(KEY_NUMPAD9 , "9"); |
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122 mnemonics.put(KEY_DECIMAL , "."); |
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123 mnemonics.put(KEY_ADD , "+"); |
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124 mnemonics.put(KEY_ESCAPE , ""); |
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125 mnemonics.put(KEY_TAB , "[tab]"); |
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126 } |
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127 |
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128 @Override |
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129 public void debug(String s) { |
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130 Log.d(TAG, s); |
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131 } |
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132 |
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133 // terminal key listener sending to the host |
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134 @Override |
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135 public void write(byte[] b) { |
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136 screen52.sendKeys(new String(b)); |
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137 } |
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138 @Override |
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139 public void write(int b) { |
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140 screen52.sendKeys(new String(new byte[] {(byte)b})); |
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141 } |
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142 @Override |
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143 public void keyPressed(int keyCode, char keyChar, int modifiers) { |
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144 String s; |
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145 if (mnemonics.containsKey(keyCode)) { |
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146 s = mnemonics.get(keyCode); |
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147 if (s != "") screen52.sendKeys(s); |
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148 } |
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149 } |
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150 // 5250 writing to the screen |
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151 @Override |
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152 public void putChar(int c, int l, char ch, int attributes) { |
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153 if (bridge.monitor != null) bridge.monitor.screenChanged(l, c); |
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154 super.putChar(c, l, ch, attributes); |
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155 } |
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156 @Override |
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157 public void setCursorPosition(int c, int l) { |
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158 if (bridge.monitor != null) bridge.monitor.cursorMove(l, c); |
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159 super.setCursorPosition(c, l); |
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160 } |
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161 }; |
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162 |
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163 |
| 11 | 164 public TN5250() { |
| 165 super(); | |
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166 } |
| 11 | 167 |
| 168 | |
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169 /** |
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170 * @return protocol part of the URI |
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171 */ |
| 11 | 172 public static String getProtocolName() { |
| 173 return PROTOCOL; | |
| 174 } | |
| 175 | |
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176 |
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177 /** |
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178 * Encode the current transport into a URI that can be passed via intent calls. |
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179 * @return URI to host |
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180 */ |
| 12 | 181 public Uri getUri(String input) { |
| 182 Matcher matcher = hostmask.matcher(input); | |
| 183 | |
| 184 if (!matcher.matches()) | |
| 185 return null; | |
| 186 | |
| 187 StringBuilder sb = new StringBuilder(); | |
| 188 sb.append(PROTOCOL) | |
| 189 .append("://") | |
| 190 .append(matcher.group(1)); | |
| 191 String portString = matcher.group(3); | |
| 192 int port = DEFAULT_PORT; | |
| 193 | |
| 194 if (portString != null) { | |
| 195 try { | |
| 196 port = Integer.parseInt(portString); | |
| 197 | |
| 198 if (port < 1 || port > 65535) { | |
| 199 port = DEFAULT_PORT; | |
| 200 } | |
| 201 } | |
| 202 catch (NumberFormatException nfe) { | |
| 203 // Keep the default port | |
| 204 } | |
| 205 } | |
| 206 | |
| 207 if (port != DEFAULT_PORT) { | |
| 208 sb.append(':'); | |
| 209 sb.append(port); | |
| 210 } | |
| 211 | |
| 212 sb.append("/#") | |
| 213 .append(Uri.encode(input)); | |
| 214 Uri uri = Uri.parse(sb.toString()); | |
| 215 return uri; | |
| 11 | 216 } |
| 217 | |
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218 |
| 11 | 219 /** |
| 220 * Causes transport to connect to the target host. After connecting but before a | |
| 221 * session is started, must call back to {@link TerminalBridge#onConnected()}. | |
| 222 * After that call a session may be opened. | |
| 223 */ | |
| 224 @Override | |
| 225 public void connect() { | |
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226 screen52 = new Screen5250(); |
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227 handler = new tnvt(screen52, true, false, bridge, manager); |
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228 handler.setSSLType("TLS"); |
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229 screen52.setVT(handler); |
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230 screen52.setBuffer(buffer); |
| 23 | 231 connected = handler.connect(host.getHostname(), host.getPort()); |
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232 if (connected) bridge.onConnected(); |
| 11 | 233 } |
| 234 | |
| 235 | |
| 236 /** | |
| 237 * Checks if read() will block. If there are no bytes remaining in | |
| 238 * the underlying transport, return true. | |
| 239 */ | |
| 240 @Override | |
| 241 public boolean willBlock() { | |
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242 // we don't use a relay thread between the transport and the vt320 buffer |
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243 return true; |
| 11 | 244 } |
| 245 | |
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246 |
| 11 | 247 /** |
| 248 * Reads from the transport. Transport must support reading into a byte array | |
| 249 * <code>buffer</code> at the start of <code>offset</code> and a maximum of | |
| 250 * <code>length</code> bytes. If the remote host disconnects, throw an | |
| 251 * {@link IOException}. | |
| 252 * @param buffer byte buffer to store read bytes into | |
| 253 * @param offset where to start writing in the buffer | |
| 254 * @param length maximum number of bytes to read | |
| 255 * @return number of bytes read | |
| 256 * @throws IOException when remote host disconnects | |
| 257 */ | |
| 258 public int read(byte[] buffer, int offset, int length) throws IOException { | |
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259 // we don't use a relay thread between the transport and the vt320 buffer |
| 11 | 260 return 0; |
| 261 } | |
| 262 | |
| 263 | |
| 264 /** | |
| 265 * Writes to the transport. If the host is not yet connected, simply return without | |
| 266 * doing anything. An {@link IOException} should be thrown if there is an error after | |
| 267 * connection. | |
| 268 * @param buffer bytes to write to transport | |
| 269 * @throws IOException when there is a problem writing after connection | |
| 270 */ | |
| 271 public void write(byte[] buffer) throws IOException { | |
| 272 } | |
| 273 | |
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274 |
| 11 | 275 /** |
| 276 * Writes to the transport. See {@link #write(byte[])} for behavior details. | |
| 277 * @param c character to write to the transport | |
| 278 * @throws IOException when there is a problem writing after connection | |
| 279 */ | |
| 280 public void write(int c) throws IOException { | |
| 281 } | |
| 282 | |
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283 |
| 11 | 284 /** |
| 285 * Flushes the write commands to the transport. | |
| 286 * @throws IOException when there is a problem writing after connection | |
| 287 */ | |
| 288 public void flush() throws IOException { | |
| 289 } | |
| 290 | |
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291 |
| 11 | 292 /** |
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293 * Closes the connection to the terminal. |
| 11 | 294 */ |
| 295 public void close() { | |
| 13 | 296 handler.disconnect(); |
| 11 | 297 connected = false; |
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298 bridge.dispatchDisconnect(false); |
| 11 | 299 } |
| 300 | |
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301 |
| 11 | 302 /** |
| 303 * Tells the transport what dimensions the display is currently | |
| 304 * @param columns columns of text | |
| 305 * @param rows rows of text | |
| 306 * @param width width in pixels | |
| 307 * @param height height in pixels | |
| 308 */ | |
| 309 @Override | |
| 310 public void setDimensions(int columns, int rows, int width, int height) { | |
| 311 // do nothing | |
| 312 } | |
| 313 | |
| 314 | |
| 315 @Override | |
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316 public vt320 getTransportBuffer() { |
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317 buffer = new vt320x5250(); |
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318 return setupTransportBuffer(); |
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319 } |
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320 |
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321 |
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322 @Override |
| 11 | 323 public int getDefaultPort() { |
| 324 return DEFAULT_PORT; | |
| 325 } | |
| 326 | |
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327 |
| 11 | 328 @Override |
| 329 public boolean isConnected() { | |
| 330 return connected; | |
| 331 } | |
| 332 | |
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333 |
| 11 | 334 @Override |
| 335 public boolean isSessionOpen() { | |
| 336 return connected; | |
| 337 } | |
| 338 | |
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339 |
| 11 | 340 @Override |
| 341 public boolean isAuthenticated() { | |
| 342 return connected; | |
| 343 } | |
| 344 | |
| 345 | |
| 346 @Override | |
| 347 public String getDefaultNickname(String username, String hostname, int port) { | |
| 348 if (port == DEFAULT_PORT) { | |
| 349 return String.format("%s", hostname); | |
| 350 } | |
| 351 else { | |
| 352 return String.format("%s:%d", hostname, port); | |
| 353 } | |
| 354 } | |
| 355 | |
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356 |
| 11 | 357 @Override |
| 358 public void getSelectionArgs(Uri uri, Map<String, String> selection) { | |
| 359 selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); | |
| 360 selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); | |
| 361 selection.put(HostDatabase.FIELD_HOST_HOSTNAME, uri.getHost()); | |
| 362 int port = uri.getPort(); | |
| 363 | |
| 364 if (port < 0) | |
| 365 port = DEFAULT_PORT; | |
| 366 | |
| 367 selection.put(HostDatabase.FIELD_HOST_PORT, Integer.toString(port)); | |
| 368 } | |
| 369 | |
| 370 | |
| 371 @Override | |
| 372 public HostBean createHost(Uri uri) { | |
| 373 HostBean host = new HostBean(); | |
| 374 host.setProtocol(PROTOCOL); | |
| 375 host.setHostname(uri.getHost()); | |
| 376 int port = uri.getPort(); | |
| 377 | |
| 378 if (port < 0) | |
| 379 port = DEFAULT_PORT; | |
| 380 | |
| 381 host.setPort(port); | |
| 382 String nickname = uri.getFragment(); | |
| 383 | |
| 384 if (nickname == null || nickname.length() == 0) { | |
| 385 host.setNickname(getDefaultNickname(host.getUsername(), | |
| 386 host.getHostname(), host.getPort())); | |
| 387 } | |
| 388 else { | |
| 389 host.setNickname(uri.getFragment()); | |
| 390 } | |
| 391 | |
| 392 return host; | |
| 393 } | |
| 394 | |
| 395 | |
| 12 | 396 public String getFormatHint(Context context) { |
| 11 | 397 return String.format("%s:%s", |
| 398 context.getString(R.string.format_hostname), | |
| 399 context.getString(R.string.format_port)); | |
| 400 } | |
| 401 | |
| 402 | |
| 403 @Override | |
| 404 public boolean usesNetwork() { | |
| 405 return true; | |
| 406 } | |
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407 |
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408 |
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409 @Override |
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410 public boolean needsRelay() { |
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411 // we don't use a relay thread between the transport and the vt320 buffer |
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412 return false; |
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413 } |
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414 |
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415 public TerminalKeyListener getTerminalKeyListener() { |
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416 return new TerminalKeyListener(manager, bridge, buffer, host.getEncoding()); |
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417 } |
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418 |
| 11 | 419 } |