Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/transport/TN5250.java @ 43:6b0f1ece1d91 tn5250
start tn5250 integration
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Wed, 11 Jun 2014 09:29:22 -0700 |
| parents | 0395ca628303 |
| children | 80dcebe51af2 |
| 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; | |
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55 |
| 11 | 56 private Screen5250 screen52; |
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57 private tnvt handler = null; |
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58 private Socket socket; |
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59 private boolean connected = false; |
| 11 | 60 |
| 12 | 61 static final Pattern hostmask; |
| 62 static { | |
| 63 hostmask = Pattern.compile("^([0-9a-z.-]+)(:(\\d+))?$", Pattern.CASE_INSENSITIVE); | |
| 64 } | |
| 65 | |
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66 class Terminal5250KeyListener extends TerminalKeyListener { |
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67 |
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68 }; |
| 12 | 69 |
| 11 | 70 public TN5250() { |
| 71 super(); | |
| 72 } | |
| 73 | |
| 74 | |
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75 /** |
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76 * @return protocol part of the URI |
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77 */ |
| 11 | 78 public static String getProtocolName() { |
| 79 return PROTOCOL; | |
| 80 } | |
| 81 | |
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82 |
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83 /** |
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84 * Encode the current transport into a URI that can be passed via intent calls. |
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85 * @return URI to host |
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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 | |
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124 |
| 11 | 125 /** |
| 126 * Causes transport to connect to the target host. After connecting but before a | |
| 127 * session is started, must call back to {@link TerminalBridge#onConnected()}. | |
| 128 * After that call a session may be opened. | |
| 129 */ | |
| 130 @Override | |
| 131 public void connect() { | |
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132 screen52 = new Screen5250(); |
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133 handler = new tnvt(screen52, true, false, bridge, manager); |
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134 handler.setSSLType("TLS"); |
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135 screen52.setVT(handler); |
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136 screen52.setBuffer(buffer); |
| 23 | 137 connected = handler.connect(host.getHostname(), host.getPort()); |
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138 if (connected) bridge.onConnected(); |
| 11 | 139 } |
| 140 | |
| 141 | |
| 142 /** | |
| 143 * Checks if read() will block. If there are no bytes remaining in | |
| 144 * the underlying transport, return true. | |
| 145 */ | |
| 146 @Override | |
| 147 public boolean willBlock() { | |
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148 // we don't use a relay thread between the transport and the vt320 buffer |
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149 return true; |
| 11 | 150 } |
| 151 | |
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152 |
| 11 | 153 /** |
| 154 * Reads from the transport. Transport must support reading into a byte array | |
| 155 * <code>buffer</code> at the start of <code>offset</code> and a maximum of | |
| 156 * <code>length</code> bytes. If the remote host disconnects, throw an | |
| 157 * {@link IOException}. | |
| 158 * @param buffer byte buffer to store read bytes into | |
| 159 * @param offset where to start writing in the buffer | |
| 160 * @param length maximum number of bytes to read | |
| 161 * @return number of bytes read | |
| 162 * @throws IOException when remote host disconnects | |
| 163 */ | |
| 164 public int read(byte[] buffer, int offset, int length) throws IOException { | |
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165 // we don't use a relay thread between the transport and the vt320 buffer |
| 11 | 166 return 0; |
| 167 } | |
| 168 | |
| 169 | |
| 170 /** | |
| 171 * Writes to the transport. If the host is not yet connected, simply return without | |
| 172 * doing anything. An {@link IOException} should be thrown if there is an error after | |
| 173 * connection. | |
| 174 * @param buffer bytes to write to transport | |
| 175 * @throws IOException when there is a problem writing after connection | |
| 176 */ | |
| 177 public void write(byte[] buffer) throws IOException { | |
| 178 } | |
| 179 | |
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180 |
| 11 | 181 /** |
| 182 * Writes to the transport. See {@link #write(byte[])} for behavior details. | |
| 183 * @param c character to write to the transport | |
| 184 * @throws IOException when there is a problem writing after connection | |
| 185 */ | |
| 186 public void write(int c) throws IOException { | |
| 187 } | |
| 188 | |
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189 |
| 11 | 190 /** |
| 191 * Flushes the write commands to the transport. | |
| 192 * @throws IOException when there is a problem writing after connection | |
| 193 */ | |
| 194 public void flush() throws IOException { | |
| 195 } | |
| 196 | |
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197 |
| 11 | 198 /** |
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199 * Closes the connection to the terminal. |
| 11 | 200 */ |
| 201 public void close() { | |
| 13 | 202 handler.disconnect(); |
| 11 | 203 connected = false; |
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204 bridge.dispatchDisconnect(false); |
| 11 | 205 } |
| 206 | |
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207 |
| 11 | 208 /** |
| 209 * Tells the transport what dimensions the display is currently | |
| 210 * @param columns columns of text | |
| 211 * @param rows rows of text | |
| 212 * @param width width in pixels | |
| 213 * @param height height in pixels | |
| 214 */ | |
| 215 @Override | |
| 216 public void setDimensions(int columns, int rows, int width, int height) { | |
| 217 // do nothing | |
| 218 } | |
| 219 | |
| 220 | |
| 221 @Override | |
| 222 public int getDefaultPort() { | |
| 223 return DEFAULT_PORT; | |
| 224 } | |
| 225 | |
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226 |
| 11 | 227 @Override |
| 228 public boolean isConnected() { | |
| 229 return connected; | |
| 230 } | |
| 231 | |
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232 |
| 11 | 233 @Override |
| 234 public boolean isSessionOpen() { | |
| 235 return connected; | |
| 236 } | |
| 237 | |
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238 |
| 11 | 239 @Override |
| 240 public boolean isAuthenticated() { | |
| 241 return connected; | |
| 242 } | |
| 243 | |
| 244 | |
| 245 @Override | |
| 246 public String getDefaultNickname(String username, String hostname, int port) { | |
| 247 if (port == DEFAULT_PORT) { | |
| 248 return String.format("%s", hostname); | |
| 249 } | |
| 250 else { | |
| 251 return String.format("%s:%d", hostname, port); | |
| 252 } | |
| 253 } | |
| 254 | |
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255 |
| 11 | 256 @Override |
| 257 public void getSelectionArgs(Uri uri, Map<String, String> selection) { | |
| 258 selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); | |
| 259 selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); | |
| 260 selection.put(HostDatabase.FIELD_HOST_HOSTNAME, uri.getHost()); | |
| 261 int port = uri.getPort(); | |
| 262 | |
| 263 if (port < 0) | |
| 264 port = DEFAULT_PORT; | |
| 265 | |
| 266 selection.put(HostDatabase.FIELD_HOST_PORT, Integer.toString(port)); | |
| 267 } | |
| 268 | |
| 269 | |
| 270 @Override | |
| 271 public HostBean createHost(Uri uri) { | |
| 272 HostBean host = new HostBean(); | |
| 273 host.setProtocol(PROTOCOL); | |
| 274 host.setHostname(uri.getHost()); | |
| 275 int port = uri.getPort(); | |
| 276 | |
| 277 if (port < 0) | |
| 278 port = DEFAULT_PORT; | |
| 279 | |
| 280 host.setPort(port); | |
| 281 String nickname = uri.getFragment(); | |
| 282 | |
| 283 if (nickname == null || nickname.length() == 0) { | |
| 284 host.setNickname(getDefaultNickname(host.getUsername(), | |
| 285 host.getHostname(), host.getPort())); | |
| 286 } | |
| 287 else { | |
| 288 host.setNickname(uri.getFragment()); | |
| 289 } | |
| 290 | |
| 291 return host; | |
| 292 } | |
| 293 | |
| 294 | |
| 12 | 295 public String getFormatHint(Context context) { |
| 11 | 296 return String.format("%s:%s", |
| 297 context.getString(R.string.format_hostname), | |
| 298 context.getString(R.string.format_port)); | |
| 299 } | |
| 300 | |
| 301 | |
| 302 @Override | |
| 303 public boolean usesNetwork() { | |
| 304 return true; | |
| 305 } | |
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306 |
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307 |
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308 @Override |
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309 public boolean needsRelay() { |
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310 // we don't use a relay thread between the transport and the vt320 buffer |
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311 return false; |
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312 } |
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313 |
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314 public TerminalKeyListener getTerminalKeyListener() { |
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315 return new Terminal5250KeyListener(manager, bridge, buffer, host.getEncoding()); |
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316 } |
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317 |
| 11 | 318 } |