Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/transport/TN5250.java @ 30:d738f6b876fe tn5250
start tn5250 integration
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Tue, 03 Jun 2014 16:05:21 -0700 |
| parents | 017eeed8332c |
| children | 139394237973 |
| 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; |
| 11 | 26 import java.util.List; |
| 27 import java.util.Map; | |
| 13 | 28 import java.util.regex.Matcher; |
| 29 import java.util.regex.Pattern; | |
| 11 | 30 |
| 12 | 31 import org.tn5250j.framework.tn5250.Screen5250; |
| 32 import org.tn5250j.framework.tn5250.tnvt; | |
| 33 | |
| 13 | 34 import com.five_ten_sg.connectbot.R; |
| 11 | 35 import com.five_ten_sg.connectbot.bean.HostBean; |
| 36 import com.five_ten_sg.connectbot.bean.PortForwardBean; | |
| 37 import com.five_ten_sg.connectbot.service.TerminalBridge; | |
|
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38 import com.five_ten_sg.connectbot.service.TerminalKeyListener; |
| 11 | 39 import com.five_ten_sg.connectbot.service.TerminalManager; |
| 40 import com.five_ten_sg.connectbot.util.HostDatabase; | |
| 41 import android.content.Context; | |
| 42 import android.net.Uri; | |
| 13 | 43 import android.util.Log; |
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44 import de.mud.terminal.vt320; |
| 11 | 45 |
| 46 | |
| 47 /** | |
| 48 * @author Carl Byington | |
| 49 * | |
| 50 */ | |
| 51 public class TN5250 extends AbsTransport { | |
| 52 private static final String PROTOCOL = "tn5250"; | |
| 53 private static final String TAG = "ConnectBot.tn5250"; | |
| 54 private static final int DEFAULT_PORT = 23; | |
| 55 private Screen5250 screen52; | |
| 56 | |
| 57 private tnvt handler = null; | |
| 58 private Socket socket; | |
| 59 | |
| 60 private int width; | |
| 61 private int height; | |
| 62 | |
| 63 private boolean connected = false; | |
| 64 | |
| 12 | 65 static final Pattern hostmask; |
| 66 static { | |
| 67 hostmask = Pattern.compile("^([0-9a-z.-]+)(:(\\d+))?$", Pattern.CASE_INSENSITIVE); | |
| 68 } | |
| 69 | |
| 70 | |
| 11 | 71 public TN5250() { |
| 72 super(); | |
| 73 } | |
| 74 | |
| 75 public TN5250(HostBean host, TerminalBridge bridge, TerminalManager manager) { | |
| 76 super(host, bridge, manager); | |
| 77 } | |
| 78 | |
| 79 | |
| 80 /** | |
| 81 * @return protocol part of the URI | |
| 82 */ | |
| 83 public static String getProtocolName() { | |
| 84 return PROTOCOL; | |
| 85 } | |
| 86 | |
| 12 | 87 public Uri getUri(String input) { |
| 88 Matcher matcher = hostmask.matcher(input); | |
| 89 | |
| 90 if (!matcher.matches()) | |
| 91 return null; | |
| 92 | |
| 93 StringBuilder sb = new StringBuilder(); | |
| 94 sb.append(PROTOCOL) | |
| 95 .append("://") | |
| 96 .append(matcher.group(1)); | |
| 97 String portString = matcher.group(3); | |
| 98 int port = DEFAULT_PORT; | |
| 99 | |
| 100 if (portString != null) { | |
| 101 try { | |
| 102 port = Integer.parseInt(portString); | |
| 103 | |
| 104 if (port < 1 || port > 65535) { | |
| 105 port = DEFAULT_PORT; | |
| 106 } | |
| 107 } | |
| 108 catch (NumberFormatException nfe) { | |
| 109 // Keep the default port | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 if (port != DEFAULT_PORT) { | |
| 114 sb.append(':'); | |
| 115 sb.append(port); | |
| 116 } | |
| 117 | |
| 118 sb.append("/#") | |
| 119 .append(Uri.encode(input)); | |
| 120 Uri uri = Uri.parse(sb.toString()); | |
| 121 return uri; | |
| 11 | 122 } |
| 123 | |
| 124 /** | |
| 125 * Causes transport to connect to the target host. After connecting but before a | |
| 126 * session is started, must call back to {@link TerminalBridge#onConnected()}. | |
| 127 * After that call a session may be opened. | |
| 128 */ | |
| 129 @Override | |
| 130 public void connect() { | |
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131 screen52 = new Screen5250(); |
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132 handler = new tnvt(screen52, true, false, bridge, manager); |
| 23 | 133 connected = handler.connect(host.getHostname(), host.getPort()); |
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134 if (connected) bridge.onConnected(); |
| 11 | 135 } |
| 136 | |
| 137 | |
| 138 /** | |
| 139 * Checks if read() will block. If there are no bytes remaining in | |
| 140 * the underlying transport, return true. | |
| 141 */ | |
| 142 @Override | |
| 143 public boolean willBlock() { | |
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144 // we don't use a relay thread between the transport and the vt320 buffer |
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145 return true; |
| 11 | 146 } |
| 147 | |
| 148 /** | |
| 149 * Reads from the transport. Transport must support reading into a byte array | |
| 150 * <code>buffer</code> at the start of <code>offset</code> and a maximum of | |
| 151 * <code>length</code> bytes. If the remote host disconnects, throw an | |
| 152 * {@link IOException}. | |
| 153 * @param buffer byte buffer to store read bytes into | |
| 154 * @param offset where to start writing in the buffer | |
| 155 * @param length maximum number of bytes to read | |
| 156 * @return number of bytes read | |
| 157 * @throws IOException when remote host disconnects | |
| 158 */ | |
| 159 public int read(byte[] buffer, int offset, int length) throws IOException { | |
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160 // we don't use a relay thread between the transport and the vt320 buffer |
| 11 | 161 return 0; |
| 162 } | |
| 163 | |
| 164 | |
| 165 /** | |
| 166 * Writes to the transport. If the host is not yet connected, simply return without | |
| 167 * doing anything. An {@link IOException} should be thrown if there is an error after | |
| 168 * connection. | |
| 169 * @param buffer bytes to write to transport | |
| 170 * @throws IOException when there is a problem writing after connection | |
| 171 */ | |
| 172 public void write(byte[] buffer) throws IOException { | |
| 173 } | |
| 174 | |
| 175 /** | |
| 176 * Writes to the transport. See {@link #write(byte[])} for behavior details. | |
| 177 * @param c character to write to the transport | |
| 178 * @throws IOException when there is a problem writing after connection | |
| 179 */ | |
| 180 public void write(int c) throws IOException { | |
| 181 } | |
| 182 | |
| 183 /** | |
| 184 * Flushes the write commands to the transport. | |
| 185 * @throws IOException when there is a problem writing after connection | |
| 186 */ | |
| 187 public void flush() throws IOException { | |
| 188 } | |
| 189 | |
| 190 /** | |
| 191 * Closes the connection to the terminal. Note that the resulting failure to read | |
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192 * should call {@link TerminalBridge#dispatchDisconnect(boolean)}. !!! |
| 11 | 193 */ |
| 194 public void close() { | |
| 13 | 195 handler.disconnect(); |
| 11 | 196 connected = false; |
| 197 } | |
| 198 | |
| 199 /** | |
| 200 * Tells the transport what dimensions the display is currently | |
| 201 * @param columns columns of text | |
| 202 * @param rows rows of text | |
| 203 * @param width width in pixels | |
| 204 * @param height height in pixels | |
| 205 */ | |
| 206 @Override | |
| 207 public void setDimensions(int columns, int rows, int width, int height) { | |
| 208 // do nothing | |
| 209 } | |
| 210 | |
| 211 public void setOptions(Map<String, String> options) { | |
| 212 // do nothing | |
| 213 } | |
| 214 | |
| 215 public Map<String, String> getOptions() { | |
| 216 return null; | |
| 217 } | |
| 218 | |
| 219 public void setCompression(boolean compression) { | |
| 220 // do nothing | |
| 221 } | |
| 222 | |
| 223 public void setHttpproxy(String httpproxy) { | |
| 224 // do nothing | |
| 225 } | |
| 226 | |
| 227 public void setUseAuthAgent(String useAuthAgent) { | |
| 228 // do nothing | |
| 229 } | |
| 230 | |
| 231 public void setEmulation(String emulation) { | |
| 232 this.emulation = emulation; | |
| 233 } | |
| 234 | |
| 235 public String getEmulation() { | |
| 236 return emulation; | |
| 237 } | |
| 238 | |
| 239 public void setHost(HostBean host) { | |
| 240 this.host = host; | |
| 241 } | |
| 242 | |
| 243 public void setBridge(TerminalBridge bridge) { | |
| 244 this.bridge = bridge; | |
| 245 } | |
| 246 | |
| 247 public void setManager(TerminalManager manager) { | |
| 248 this.manager = manager; | |
| 249 } | |
| 250 | |
| 251 /** | |
| 252 * Whether or not this transport type can forward ports. | |
| 253 * @return true on ability to forward ports | |
| 254 */ | |
| 255 public boolean canForwardPorts() { | |
| 256 return false; | |
| 257 } | |
| 258 | |
| 259 /** | |
| 260 * Adds the {@link PortForwardBean} to the list. | |
| 261 * @param portForward the port forward bean to add | |
| 262 * @return true on successful addition | |
| 263 */ | |
| 264 public boolean addPortForward(PortForwardBean portForward) { | |
| 265 return false; | |
| 266 } | |
| 267 | |
| 268 /** | |
| 269 * Enables a port forward member. After calling this method, the port forward should | |
| 270 * be operational iff it could be enabled by the transport. | |
| 271 * @param portForward member of our current port forwards list to enable | |
| 272 * @return true on successful port forward setup | |
| 273 */ | |
| 274 public boolean enablePortForward(PortForwardBean portForward) { | |
| 275 return false; | |
| 276 } | |
| 277 | |
| 278 /** | |
| 279 * Disables a port forward member. After calling this method, the port forward should | |
| 280 * be non-functioning iff it could be disabled by the transport. | |
| 281 * @param portForward member of our current port forwards list to enable | |
| 282 * @return true on successful port forward tear-down | |
| 283 */ | |
| 284 public boolean disablePortForward(PortForwardBean portForward) { | |
| 285 return false; | |
| 286 } | |
| 287 | |
| 288 /** | |
| 289 * Removes the {@link PortForwardBean} from the available port forwards. | |
| 290 * @param portForward the port forward bean to remove | |
| 291 * @return true on successful removal | |
| 292 */ | |
| 293 public boolean removePortForward(PortForwardBean portForward) { | |
| 294 return false; | |
| 295 } | |
| 296 | |
| 297 /** | |
| 298 * Gets a list of the {@link PortForwardBean} currently used by this transport. | |
| 299 * @return the list of port forwards | |
| 300 */ | |
| 301 public List<PortForwardBean> getPortForwards() { | |
| 302 return null; | |
| 303 } | |
| 304 | |
| 305 /** | |
| 306 * Whether or not this transport type can transfer files. | |
| 307 * @return true on ability to transfer files | |
| 308 */ | |
| 309 public boolean canTransferFiles() { | |
| 310 return false; | |
| 311 } | |
| 312 | |
| 313 /** | |
| 314 * Downloads the specified remote file to a local folder. | |
| 315 * @param remoteFile The path to the remote file to be downloaded. Must be non-null. | |
| 316 * @param localFolder The path to local folder. Null = default external storage folder. | |
| 317 * @return true on success, false on failure | |
| 318 */ | |
| 319 public boolean downloadFile(String remoteFile, String localFolder) { | |
| 320 return false; | |
| 321 } | |
| 322 | |
| 323 /** | |
| 324 * Uploads the specified local file to the remote host. | |
| 325 * @param localFile The path to the local file to be uploaded. Must be non-null. | |
| 326 * @param remoteFolder The path to the remote directory. Null == default remote directory. | |
| 327 * @return true on success, false on failure | |
| 328 */ | |
| 329 public boolean uploadFile(String localFile, String remoteFile, | |
| 330 String remoteFolder, String mode) { | |
| 331 return false; | |
| 332 } | |
| 333 | |
| 334 @Override | |
| 335 public int getDefaultPort() { | |
| 336 return DEFAULT_PORT; | |
| 337 } | |
| 338 | |
| 339 @Override | |
| 340 public boolean isConnected() { | |
| 341 return connected; | |
| 342 } | |
| 343 | |
| 344 @Override | |
| 345 public boolean isSessionOpen() { | |
| 346 return connected; | |
| 347 } | |
| 348 | |
| 349 @Override | |
| 350 public boolean isAuthenticated() { | |
| 351 return connected; | |
| 352 } | |
| 353 | |
| 354 | |
| 355 @Override | |
| 356 public String getDefaultNickname(String username, String hostname, int port) { | |
| 357 if (port == DEFAULT_PORT) { | |
| 358 return String.format("%s", hostname); | |
| 359 } | |
| 360 else { | |
| 361 return String.format("%s:%d", hostname, port); | |
| 362 } | |
| 363 } | |
| 364 | |
| 365 @Override | |
| 366 public void getSelectionArgs(Uri uri, Map<String, String> selection) { | |
| 367 selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); | |
| 368 selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); | |
| 369 selection.put(HostDatabase.FIELD_HOST_HOSTNAME, uri.getHost()); | |
| 370 int port = uri.getPort(); | |
| 371 | |
| 372 if (port < 0) | |
| 373 port = DEFAULT_PORT; | |
| 374 | |
| 375 selection.put(HostDatabase.FIELD_HOST_PORT, Integer.toString(port)); | |
| 376 } | |
| 377 | |
| 378 | |
| 379 @Override | |
| 380 public HostBean createHost(Uri uri) { | |
| 381 HostBean host = new HostBean(); | |
| 382 host.setProtocol(PROTOCOL); | |
| 383 host.setHostname(uri.getHost()); | |
| 384 int port = uri.getPort(); | |
| 385 | |
| 386 if (port < 0) | |
| 387 port = DEFAULT_PORT; | |
| 388 | |
| 389 host.setPort(port); | |
| 390 String nickname = uri.getFragment(); | |
| 391 | |
| 392 if (nickname == null || nickname.length() == 0) { | |
| 393 host.setNickname(getDefaultNickname(host.getUsername(), | |
| 394 host.getHostname(), host.getPort())); | |
| 395 } | |
| 396 else { | |
| 397 host.setNickname(uri.getFragment()); | |
| 398 } | |
| 399 | |
| 400 return host; | |
| 401 } | |
| 402 | |
| 403 | |
| 12 | 404 public String getFormatHint(Context context) { |
| 11 | 405 return String.format("%s:%s", |
| 406 context.getString(R.string.format_hostname), | |
| 407 context.getString(R.string.format_port)); | |
| 408 } | |
| 409 | |
| 410 | |
| 411 @Override | |
| 412 public boolean usesNetwork() { | |
| 413 return true; | |
| 414 } | |
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415 |
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416 |
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417 @Override |
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418 public boolean needsRelay() { |
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419 // we don't use a relay thread between the transport and the vt320 buffer |
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420 return false; |
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421 } |
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422 |
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423 |
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424 @Override |
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425 public TerminalKeyListener getTerminalKeyListener(TerminalManager manager, TerminalBridge bridge, vt320 buffer, String encoding) { |
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426 return new TerminalKeyListener(manager, bridge, buffer, encoding); |
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427 } |
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428 |
| 11 | 429 } |