Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 73:accf93be8c12 tn5250
update documentation; use xterm-256color as default terminal type
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Sat, 14 Jun 2014 08:54:34 -0700 |
| parents | 294435151b0c |
| children | 01d939969b10 |
| rev | line source |
|---|---|
| 0 | 1 package com.five_ten_sg.connectbot.service; |
| 2 | |
| 3 import android.content.ComponentName; | |
| 4 import android.content.Context; | |
| 5 import android.content.Intent; | |
| 6 import android.content.ServiceConnection; | |
| 7 import android.os.IBinder; | |
| 8 import android.util.Log; | |
| 9 import android.view.KeyEvent; | |
| 10 import android.view.View; | |
| 11 import de.mud.terminal.vt320; | |
| 12 import java.io.IOException; | |
| 13 import java.io.InputStream; | |
| 14 import java.io.OutputStream; | |
| 15 import java.net.InetAddress; | |
| 16 import java.net.Socket; | |
| 17 import java.nio.charset.Charset; | |
| 18 import java.util.HashMap; | |
| 19 | |
| 20 public class TerminalMonitor { | |
| 21 public final static String TAG = "ConnectBot.TerminalMonitor"; | |
| 22 | |
| 23 public static final char MONITOR_CMD_INIT = 0; | |
| 24 public static final char MONITOR_CMD_ACTIVATE = 1; | |
| 25 public static final char MONITOR_CMD_HOSTDATA = 2; | |
| 26 public static final char MONITOR_CMD_CURSORMOVE = 3; | |
| 27 public static final char MONITOR_CMD_SCREENCHANGE = 4; | |
| 28 public static final char MONITOR_CMD_FIELDVALUE = 5; | |
| 29 public static final char MONITOR_CMD_SETFIELD = 5; | |
| 30 public static final char MONITOR_CMD_GETFIELD = 6; | |
| 31 public static final char MONITOR_CMD_SCREENWATCH = 7; | |
| 32 public static final char MONITOR_CMD_DEPRESS = 8; | |
| 33 | |
| 34 private static final int MONITORPORT = 6000; | |
| 35 private static final String LOCALHOST = "127.0.0.1"; | |
| 36 | |
| 37 private Context parent = null; | |
| 38 private vt320 buffer = null; | |
| 39 private TerminalKeyListener keyListener = null; | |
| 40 private View view = null; | |
| 41 private String init = null; | |
| 42 private int start_line = 0; // monitor part of the screen for changes | |
| 43 private int end_line = 500; // "" | |
| 44 private int start_column = 0; // "" | |
| 45 private int end_column = 500; // "" | |
| 46 private boolean modified = false; // "" | |
| 47 private HashMap<Integer,Integer> keymap = null; | |
| 48 private IBinder bound = null; | |
| 49 private Socket monitor_socket = null; | |
| 50 private InputStream monitor_in = null; | |
| 51 private OutputStream monitor_out = null; | |
| 52 private MyReader monitor_reader = null; | |
| 53 private MyServiceConnection monitor_connection = new MyServiceConnection(); | |
| 54 | |
| 55 class MyReader extends Thread { | |
| 56 private InputStream monitor_in; | |
| 57 private byte[] b; | |
| 58 private boolean is_closing = false; | |
| 59 | |
| 60 public MyReader(InputStream monitor_in) { | |
| 61 this.monitor_in = monitor_in; | |
| 62 b = new byte[100]; | |
| 63 Log.i(TAG, "MyReader constructor"); | |
| 64 } | |
| 65 | |
| 66 public void closing() { | |
| 67 is_closing = true; | |
| 68 } | |
| 69 | |
| 70 private char[] forceRead(int len) throws IOException { | |
| 71 int len2 = len * 2; | |
| 72 int off = 0; | |
| 73 | |
| 74 if (b.length < len2) b = new byte[len2]; | |
| 75 | |
| 76 while (off < len2) { | |
| 77 int l = monitor_in.read(b, off, len2 - off); | |
| 78 | |
| 79 if (l < 0) throw new IOException("eof"); | |
| 80 | |
| 81 off += l; | |
| 82 } | |
| 83 | |
| 84 return bytesToChars(b, len2); | |
| 85 } | |
| 86 | |
| 87 public void run() { | |
| 88 while (true) { | |
| 89 try { | |
| 90 char[] len = forceRead(1); | |
| 91 char[] packet = forceRead(len[0]); | |
| 92 char cmd = packet[0]; | |
| 93 Log.i(TAG, String.format("received %d command", (int)cmd)); | |
| 94 | |
| 95 switch (cmd) { | |
| 96 case MONITOR_CMD_SETFIELD: | |
| 97 if (packet.length >= 4) | |
| 98 setField(packet[1], packet[2], packet, 3); | |
| 99 break; | |
| 100 | |
| 101 case MONITOR_CMD_GETFIELD: | |
| 102 if (packet.length == 4) | |
| 103 getField(packet[1], packet[2], packet[3]); | |
| 104 break; | |
| 105 | |
| 106 case MONITOR_CMD_SCREENWATCH: | |
| 107 if (packet.length == 4) | |
| 108 screenWatch(packet[1], packet[2], packet[3]); | |
| 109 break; | |
| 110 | |
| 111 case MONITOR_CMD_DEPRESS: | |
| 112 if (packet.length == 2) | |
| 113 depress(packet[1]); | |
| 114 break; | |
| 115 | |
| 116 default: | |
| 117 break; | |
| 118 } | |
| 119 } | |
| 120 catch (IOException e) { | |
| 121 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 122 | |
| 123 break; | |
| 124 } | |
| 125 } | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 class MyServiceConnection implements ServiceConnection { | |
| 130 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 131 bound = service; | |
| 132 Log.i(TAG, "bound to service"); | |
| 133 | |
| 134 try { | |
| 135 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
| 136 monitor_socket = new Socket(serverAddr, MONITORPORT); | |
| 137 monitor_in = monitor_socket.getInputStream(); | |
| 138 monitor_out = monitor_socket.getOutputStream(); | |
| 139 Log.i(TAG, "connected to monitor socket, send init " + init); | |
| 140 monitor_reader = new MyReader(monitor_in); | |
| 141 monitor_reader.start(); | |
| 142 String x = " " + init; | |
| 143 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); | |
| 144 } | |
| 145 catch (IOException e) { | |
| 146 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 147 } | |
| 148 } | |
| 149 public void onServiceDisconnected(ComponentName classNam) { | |
| 150 bound = null; | |
| 151 Log.i(TAG, "unbound from service"); | |
| 152 } | |
| 153 }; | |
| 154 | |
| 155 | |
| 156 public TerminalMonitor(Context parent, vt320 buffer, TerminalKeyListener keyListener, View view, String init) { | |
| 157 this.parent = parent; | |
| 158 this.buffer = buffer; | |
| 159 this.keyListener = keyListener; | |
| 160 this.view = view; | |
| 161 this.init = init; | |
| 162 | |
| 163 // setup the windows->android keymapping | |
| 164 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731%28v=vs.85%29.aspx | |
| 165 // http://developer.android.com/reference/android/view/KeyEvent.html | |
| 166 keymap = new HashMap<Integer,Integer>(); | |
| 167 keymap.put(0x08, KeyEvent.KEYCODE_BACK); // vk_back | |
| 168 keymap.put(0x09, KeyEvent.KEYCODE_TAB); // vk_tab | |
| 169 keymap.put(0x0d, KeyEvent.KEYCODE_ENTER); // vk_return | |
| 170 keymap.put(0x1b, KeyEvent.KEYCODE_ESCAPE); // vk_escape | |
| 171 keymap.put(0x21, KeyEvent.KEYCODE_PAGE_UP); // vk_prior | |
| 172 keymap.put(0x22, KeyEvent.KEYCODE_PAGE_DOWN); // vk_next | |
| 173 keymap.put(0x23, KeyEvent.KEYCODE_MOVE_END); // vk_end | |
| 174 keymap.put(0x24, KeyEvent.KEYCODE_MOVE_HOME); // vk_home | |
| 175 keymap.put(0x25, KeyEvent.KEYCODE_DPAD_LEFT); // vk_left | |
| 176 keymap.put(0x26, KeyEvent.KEYCODE_DPAD_UP); // vk_up | |
| 177 keymap.put(0x27, KeyEvent.KEYCODE_DPAD_RIGHT); // vk_right | |
| 178 keymap.put(0x28, KeyEvent.KEYCODE_DPAD_DOWN); // vk_down | |
| 179 keymap.put(0x2d, KeyEvent.KEYCODE_INSERT); // vk_insert | |
| 180 keymap.put(0x2e, KeyEvent.KEYCODE_DEL); // vk_delete | |
| 181 keymap.put(0x70, KeyEvent.KEYCODE_F1); // vk_f1 | |
| 182 keymap.put(0x71, KeyEvent.KEYCODE_F2); // vk_f2 | |
| 183 keymap.put(0x72, KeyEvent.KEYCODE_F3); // vk_f3 | |
| 184 keymap.put(0x73, KeyEvent.KEYCODE_F4); // vk_f4 | |
| 185 keymap.put(0x74, KeyEvent.KEYCODE_F5); // vk_f5 | |
| 186 keymap.put(0x75, KeyEvent.KEYCODE_F6); // vk_f6 | |
| 187 keymap.put(0x76, KeyEvent.KEYCODE_F7); // vk_f7 | |
| 188 keymap.put(0x77, KeyEvent.KEYCODE_F8); // vk_f8 | |
| 189 keymap.put(0x78, KeyEvent.KEYCODE_F9); // vk_f9 | |
| 190 keymap.put(0x79, KeyEvent.KEYCODE_F10); // vk_f10 | |
| 191 keymap.put(0x7a, KeyEvent.KEYCODE_F11); // vk_f11 | |
| 192 keymap.put(0x7b, KeyEvent.KEYCODE_F12); // vk_f12 | |
| 193 | |
| 194 // bind to the monitor service | |
| 195 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 196 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 197 Log.i(TAG, "constructor"); | |
| 198 } | |
| 199 | |
| 200 | |
| 201 public void Disconnect() { | |
| 202 if (monitor_reader != null) monitor_reader.closing(); | |
| 203 | |
| 204 try { | |
| 205 if (monitor_out != null) monitor_out.close(); | |
| 206 | |
| 207 if (monitor_in != null) monitor_in.close(); | |
| 208 | |
| 209 if (monitor_socket != null) monitor_socket.close(); | |
| 210 | |
| 211 Log.i(TAG, "disconnected from monitor socket"); | |
| 212 } | |
| 213 catch (IOException e) { | |
| 214 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 215 } | |
| 216 | |
| 217 monitor_reader = null; | |
| 218 monitor_out = null; | |
| 219 monitor_in = null; | |
| 220 monitor_socket = null; | |
| 221 | |
| 222 if (bound != null) parent.unbindService(monitor_connection); | |
| 223 | |
| 224 monitor_connection = null; | |
| 225 } | |
| 226 | |
| 227 | |
| 228 public char[] bytesToChars(byte[] b, int len) { | |
| 229 char[] c = new char[len >> 1]; | |
| 230 int bp = 0; | |
| 231 | |
| 232 for (int i = 0; i < c.length; i++) { | |
| 233 byte b1 = b[bp++]; | |
| 234 byte b2 = b[bp++]; | |
| 235 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 236 } | |
| 237 | |
| 238 return c; | |
| 239 } | |
| 240 | |
| 241 | |
| 242 public byte[] charsToBytes(char[] c) { | |
| 243 byte[] b = new byte[c.length << 1]; | |
| 244 int bp = 0; | |
| 245 | |
| 246 for (int i = 0; i < c.length; i++) { | |
| 247 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 248 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 249 } | |
| 250 | |
| 251 return b; | |
| 252 } | |
| 253 | |
| 254 | |
| 255 public synchronized void monitorWrite(char cmd, char[] c) { | |
| 256 try { | |
| 257 if (monitor_out != null) { | |
| 258 c[0] = (char)(c.length - 1); // number of chars following | |
| 259 c[1] = cmd; | |
| 260 //Log.i(TAG, String.format("sending %d command", (int)cmd)); | |
| 261 monitor_out.write(charsToBytes(c)); | |
| 262 } | |
| 263 } | |
| 264 catch (IOException e) { | |
| 265 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); | |
| 266 | |
| 267 try { | |
| 268 monitor_out.close(); | |
| 269 } | |
| 270 catch (IOException ee) { | |
| 271 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); | |
| 272 } | |
| 273 | |
| 274 monitor_out = null; | |
| 275 } | |
| 276 }; | |
| 277 | |
| 278 public void sendScreen(char cmd) { | |
| 279 char lines = (char)(buffer.height & 0x0000ffff); | |
| 280 char columns = (char)(buffer.width & 0x0000ffff); | |
| 281 char[] arg = new char[4 + lines * columns]; | |
| 282 arg[2] = lines; | |
| 283 arg[3] = columns; | |
| 284 int base = 4; | |
| 285 for (int i = 0; i < lines; i++) { | |
| 286 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 287 base += columns; | |
| 288 } | |
| 289 monitorWrite(cmd, arg); | |
| 290 } | |
| 291 | |
| 292 public synchronized void activate() { | |
| 293 sendScreen(MONITOR_CMD_ACTIVATE); | |
| 294 } | |
| 295 | |
| 296 public synchronized void hostData(byte[] b) { | |
|
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297 if (b == null) return; |
| 0 | 298 for (int i = 0; i < b.length; i++) { |
| 299 hostData((int)b[i] & 0xff); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 public synchronized void hostData(int b) { | |
| 304 char[] arg = new char[3]; | |
| 305 arg[2] = (char)(b & 0x0000ffff); | |
| 306 monitorWrite(MONITOR_CMD_HOSTDATA, arg); | |
| 307 } | |
| 308 | |
| 309 public synchronized void cursorMove(int l, int c) { | |
| 310 char[] arg = new char[4]; | |
| 311 arg[2] = (char)(l & 0x0000ffff); | |
| 312 arg[3] = (char)(c & 0x0000ffff); | |
| 313 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); | |
| 314 } | |
| 315 | |
| 316 public synchronized void testChanged() { | |
| 317 if (modified) { | |
| 318 modified = false; | |
| 319 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
| 320 } | |
| 321 } | |
| 322 | |
| 323 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 324 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 325 modified = true; | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 public synchronized void screenChanged(int l, int c) { | |
| 330 screenChanged(l, l, c, c); | |
| 331 } | |
| 332 | |
| 333 public synchronized void setField(int l, int c, char[] data, int offset) { | |
| 334 Log.i(TAG, "setField()"); | |
|
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335 char[] d = new char[data.length - offset]; |
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parents:
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changeset
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336 System.arraycopy(data, offset, d, 0, data.length - offset); |
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parents:
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diff
changeset
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337 buffer.setField(l, c, d); |
| 0 | 338 } |
| 339 | |
| 340 public synchronized void getField(int l, int c, int len) { | |
| 341 Log.i(TAG, "getField()"); | |
| 342 char[] arg2 = new char[4 + len]; | |
| 343 arg2[2] = (char)(l & 0x0000ffff); | |
| 344 arg2[3] = (char)(c & 0x0000ffff); | |
| 345 int base = 4; | |
| 346 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); | |
| 347 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); | |
| 348 } | |
| 349 | |
| 350 public synchronized void screenWatch(int l, int c, int len) { | |
| 351 Log.i(TAG, "screenWatch()"); | |
| 352 start_line = l; | |
| 353 end_line = l; | |
| 354 start_column = c; | |
| 355 end_column = c + len - 1; | |
| 356 } | |
| 357 | |
| 358 public synchronized void depress(int vk_key) { | |
| 359 Log.i(TAG, String.format("depress() %d", vk_key)); | |
| 360 Integer x = keymap.get(new Integer(vk_key)); | |
| 361 if (x != null) { | |
| 362 KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, x.intValue()); | |
| 363 keyListener.onKey(view, event.getKeyCode(), event); | |
| 364 } | |
| 365 } | |
| 366 } |