Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/transport/TN5250.java @ 76:00464d9c2f54 tn5250
convert 5250 to vt320 attributes
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Sun, 15 Jun 2014 10:57:28 -0700 |
| parents | 7ae9b0c382ec |
| children | 8f23b05a51f7 |
| 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 , "[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 // monitor injecting a field |
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134 @Override |
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135 public void setField(int l, int c, char [] d) { |
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136 screen52.setField(l, c, d); |
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137 } |
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138 |
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139 // terminal key listener sending to local screen |
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140 @Override |
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141 public void write(byte[] b) { |
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142 if (bridge.monitor != null) bridge.monitor.hostData(b); |
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143 screen52.sendKeys(new String(b)); |
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144 } |
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145 @Override |
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146 public void write(int b) { |
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147 if (bridge.monitor != null) bridge.monitor.hostData(b); |
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148 screen52.sendKeys(new String(new byte[] {(byte)b})); |
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149 } |
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150 @Override |
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151 public void keyPressed(int keyCode, char keyChar, int modifiers) { |
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152 if (mnemonics.containsKey(keyCode)) { |
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153 String s = mnemonics.get(keyCode); |
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154 if (s != "") { |
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155 if (bridge.monitor != null) bridge.monitor.hostData(s.getBytes()); |
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156 screen52.sendKeys(s); |
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157 } |
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158 } |
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159 } |
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160 // 5250 writing to the screen |
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161 // test for changed screen contents |
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162 @Override |
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163 public void testChanged() { |
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164 if (bridge.monitor != null) bridge.monitor.testChanged(); |
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165 } |
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166 @Override |
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167 public void putChar(int c, int l, char ch, int attributes) { |
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168 if (bridge.monitor != null) bridge.monitor.screenChanged(l, c); |
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169 super.putChar(c, l, ch, attributes); |
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170 } |
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171 @Override |
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172 public void setCursorPosition(int c, int l) { |
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173 if (bridge.monitor != null) bridge.monitor.cursorMove(l, c); |
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174 super.setCursorPosition(c, l); |
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175 } |
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176 }; |
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177 |
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178 |
| 11 | 179 public TN5250() { |
| 180 super(); | |
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181 } |
| 11 | 182 |
| 183 | |
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184 /** |
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185 * @return protocol part of the URI |
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186 */ |
| 11 | 187 public static String getProtocolName() { |
| 188 return PROTOCOL; | |
| 189 } | |
| 190 | |
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191 |
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192 /** |
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193 * Encode the current transport into a URI that can be passed via intent calls. |
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194 * @return URI to host |
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195 */ |
| 12 | 196 public Uri getUri(String input) { |
| 197 Matcher matcher = hostmask.matcher(input); | |
| 198 | |
| 199 if (!matcher.matches()) | |
| 200 return null; | |
| 201 | |
| 202 StringBuilder sb = new StringBuilder(); | |
| 203 sb.append(PROTOCOL) | |
| 204 .append("://") | |
| 205 .append(matcher.group(1)); | |
| 206 String portString = matcher.group(3); | |
| 207 int port = DEFAULT_PORT; | |
| 208 | |
| 209 if (portString != null) { | |
| 210 try { | |
| 211 port = Integer.parseInt(portString); | |
| 212 | |
| 213 if (port < 1 || port > 65535) { | |
| 214 port = DEFAULT_PORT; | |
| 215 } | |
| 216 } | |
| 217 catch (NumberFormatException nfe) { | |
| 218 // Keep the default port | |
| 219 } | |
| 220 } | |
| 221 | |
| 222 if (port != DEFAULT_PORT) { | |
| 223 sb.append(':'); | |
| 224 sb.append(port); | |
| 225 } | |
| 226 | |
| 227 sb.append("/#") | |
| 228 .append(Uri.encode(input)); | |
| 229 Uri uri = Uri.parse(sb.toString()); | |
| 230 return uri; | |
| 11 | 231 } |
| 232 | |
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233 |
| 11 | 234 /** |
| 235 * Causes transport to connect to the target host. After connecting but before a | |
| 236 * session is started, must call back to {@link TerminalBridge#onConnected()}. | |
| 237 * After that call a session may be opened. | |
| 238 */ | |
| 239 @Override | |
| 240 public void connect() { | |
|
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241 screen52 = new Screen5250(); |
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242 handler = new tnvt(screen52, true, false, bridge, manager); |
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243 String encryption = host.getEncryption5250(); |
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244 if ((encryption == null) || (encryption.length() == 0)) encryption = "NONE"; |
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245 handler.setSSLType(encryption); |
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246 screen52.setVT(handler); |
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247 screen52.setBuffer(buffer); |
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248 connected = handler.connect(host.getHostname(), host.getPort(), buffer); |
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249 if (connected) bridge.onConnected(); |
| 11 | 250 } |
| 251 | |
| 252 | |
| 253 /** | |
| 254 * Checks if read() will block. If there are no bytes remaining in | |
| 255 * the underlying transport, return true. | |
| 256 */ | |
| 257 @Override | |
| 258 public boolean willBlock() { | |
|
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259 // we don't use a relay thread between the transport and the vt320 buffer |
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260 return true; |
| 11 | 261 } |
| 262 | |
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263 |
| 11 | 264 /** |
| 265 * Reads from the transport. Transport must support reading into a byte array | |
| 266 * <code>buffer</code> at the start of <code>offset</code> and a maximum of | |
| 267 * <code>length</code> bytes. If the remote host disconnects, throw an | |
| 268 * {@link IOException}. | |
| 269 * @param buffer byte buffer to store read bytes into | |
| 270 * @param offset where to start writing in the buffer | |
| 271 * @param length maximum number of bytes to read | |
| 272 * @return number of bytes read | |
| 273 * @throws IOException when remote host disconnects | |
| 274 */ | |
| 275 public int read(byte[] buffer, int offset, int length) throws IOException { | |
|
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276 // we don't use a relay thread between the transport and the vt320 buffer |
| 11 | 277 return 0; |
| 278 } | |
| 279 | |
| 280 | |
| 281 /** | |
| 282 * Writes to the transport. If the host is not yet connected, simply return without | |
| 283 * doing anything. An {@link IOException} should be thrown if there is an error after | |
| 284 * connection. | |
| 285 * @param buffer bytes to write to transport | |
| 286 * @throws IOException when there is a problem writing after connection | |
| 287 */ | |
| 288 public void write(byte[] buffer) throws IOException { | |
| 289 } | |
| 290 | |
|
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291 |
| 11 | 292 /** |
| 293 * Writes to the transport. See {@link #write(byte[])} for behavior details. | |
| 294 * @param c character to write to the transport | |
| 295 * @throws IOException when there is a problem writing after connection | |
| 296 */ | |
| 297 public void write(int c) throws IOException { | |
| 298 } | |
| 299 | |
|
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300 |
| 11 | 301 /** |
| 302 * Flushes the write commands to the transport. | |
| 303 * @throws IOException when there is a problem writing after connection | |
| 304 */ | |
| 305 public void flush() throws IOException { | |
| 306 } | |
| 307 | |
|
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308 |
| 11 | 309 /** |
|
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310 * Closes the connection to the terminal. |
| 11 | 311 */ |
| 312 public void close() { | |
| 13 | 313 handler.disconnect(); |
| 11 | 314 connected = false; |
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315 bridge.dispatchDisconnect(false); |
| 11 | 316 } |
| 317 | |
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318 |
| 11 | 319 /** |
| 320 * Tells the transport what dimensions the display is currently | |
| 321 * @param columns columns of text | |
| 322 * @param rows rows of text | |
| 323 * @param width width in pixels | |
| 324 * @param height height in pixels | |
| 325 */ | |
| 326 @Override | |
| 327 public void setDimensions(int columns, int rows, int width, int height) { | |
| 328 // do nothing | |
| 329 } | |
| 330 | |
| 331 | |
| 332 @Override | |
|
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333 public vt320 getTransportBuffer() { |
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334 buffer = new vt320x5250(); |
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335 return setupTransportBuffer(); |
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336 } |
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337 |
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338 |
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339 @Override |
| 11 | 340 public int getDefaultPort() { |
| 341 return DEFAULT_PORT; | |
| 342 } | |
| 343 | |
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344 |
| 11 | 345 @Override |
| 346 public boolean isConnected() { | |
| 347 return connected; | |
| 348 } | |
| 349 | |
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350 |
| 11 | 351 @Override |
| 352 public boolean isSessionOpen() { | |
| 353 return connected; | |
| 354 } | |
| 355 | |
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356 |
| 11 | 357 @Override |
| 358 public boolean isAuthenticated() { | |
| 359 return connected; | |
| 360 } | |
| 361 | |
| 362 | |
| 363 @Override | |
| 364 public String getDefaultNickname(String username, String hostname, int port) { | |
| 365 if (port == DEFAULT_PORT) { | |
| 366 return String.format("%s", hostname); | |
| 367 } | |
| 368 else { | |
| 369 return String.format("%s:%d", hostname, port); | |
| 370 } | |
| 371 } | |
| 372 | |
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373 |
| 11 | 374 @Override |
| 375 public void getSelectionArgs(Uri uri, Map<String, String> selection) { | |
| 376 selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); | |
| 377 selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); | |
| 378 selection.put(HostDatabase.FIELD_HOST_HOSTNAME, uri.getHost()); | |
| 379 int port = uri.getPort(); | |
| 380 | |
| 381 if (port < 0) | |
| 382 port = DEFAULT_PORT; | |
| 383 | |
| 384 selection.put(HostDatabase.FIELD_HOST_PORT, Integer.toString(port)); | |
| 385 } | |
| 386 | |
| 387 | |
| 388 @Override | |
| 389 public HostBean createHost(Uri uri) { | |
| 390 HostBean host = new HostBean(); | |
| 391 host.setProtocol(PROTOCOL); | |
| 392 host.setHostname(uri.getHost()); | |
| 393 int port = uri.getPort(); | |
| 394 | |
| 395 if (port < 0) | |
| 396 port = DEFAULT_PORT; | |
| 397 | |
| 398 host.setPort(port); | |
| 399 String nickname = uri.getFragment(); | |
| 400 | |
| 401 if (nickname == null || nickname.length() == 0) { | |
| 402 host.setNickname(getDefaultNickname(host.getUsername(), | |
| 403 host.getHostname(), host.getPort())); | |
| 404 } | |
| 405 else { | |
| 406 host.setNickname(uri.getFragment()); | |
| 407 } | |
| 408 | |
| 409 return host; | |
| 410 } | |
| 411 | |
| 412 | |
| 12 | 413 public String getFormatHint(Context context) { |
| 11 | 414 return String.format("%s:%s", |
| 415 context.getString(R.string.format_hostname), | |
| 416 context.getString(R.string.format_port)); | |
| 417 } | |
| 418 | |
| 419 | |
| 420 @Override | |
| 421 public boolean usesNetwork() { | |
| 422 return true; | |
| 423 } | |
|
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424 |
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425 |
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426 @Override |
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427 public boolean needsRelay() { |
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428 // we don't use a relay thread between the transport and the vt320 buffer |
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429 return false; |
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430 } |
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431 |
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432 public TerminalKeyListener getTerminalKeyListener() { |
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433 return new TerminalKeyListener(manager, bridge, buffer, host.getEncoding()); |
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434 } |
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435 |
| 11 | 436 } |