Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 19:b3d0d806cbe2
cleaner url for MS vk_ key documentation
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Tue, 03 Jun 2014 08:48:14 -0700 |
| parents | 49fc5fba28f3 |
| 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; | |
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19 import java.util.concurrent.ArrayBlockingQueue; |
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20 import java.util.concurrent.BlockingQueue; |
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21 import java.util.concurrent.ConcurrentHashMap; |
| 0 | 22 |
| 23 public class TerminalMonitor { | |
| 24 public final static String TAG = "ConnectBot.TerminalMonitor"; | |
| 25 | |
| 26 public static final char MONITOR_CMD_INIT = 0; | |
| 27 public static final char MONITOR_CMD_ACTIVATE = 1; | |
| 28 public static final char MONITOR_CMD_HOSTDATA = 2; | |
| 29 public static final char MONITOR_CMD_CURSORMOVE = 3; | |
| 30 public static final char MONITOR_CMD_SCREENCHANGE = 4; | |
| 31 public static final char MONITOR_CMD_FIELDVALUE = 5; | |
| 32 public static final char MONITOR_CMD_SETFIELD = 5; | |
| 33 public static final char MONITOR_CMD_GETFIELD = 6; | |
| 34 public static final char MONITOR_CMD_SCREENWATCH = 7; | |
| 35 public static final char MONITOR_CMD_DEPRESS = 8; | |
| 36 | |
| 37 private static final int MONITORPORT = 6000; | |
| 38 private static final String LOCALHOST = "127.0.0.1"; | |
| 39 | |
| 40 private Context parent = null; | |
| 41 private vt320 buffer = null; | |
| 42 private TerminalKeyListener keyListener = null; | |
| 43 private View view = null; | |
| 44 private String init = null; | |
| 45 private int start_line = 0; // monitor part of the screen for changes | |
| 46 private int end_line = 500; // "" | |
| 47 private int start_column = 0; // "" | |
| 48 private int end_column = 500; // "" | |
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49 private boolean modified = false; // used to delay screen change notifications |
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50 private boolean moved = false; // used to delay cursor moved notifications |
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51 private int to_line = 0; // "" |
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52 private int to_column = 0; // "" |
| 0 | 53 private HashMap<Integer,Integer> keymap = null; |
| 54 private IBinder bound = null; | |
| 55 private Socket monitor_socket = null; | |
| 56 private InputStream monitor_in = null; | |
| 57 private OutputStream monitor_out = null; | |
| 58 private MyReader monitor_reader = null; | |
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59 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100); |
| 0 | 60 private MyServiceConnection monitor_connection = new MyServiceConnection(); |
| 61 | |
| 62 class MyReader extends Thread { | |
| 63 private InputStream monitor_in; | |
| 64 private byte[] b; | |
| 65 private boolean is_closing = false; | |
| 66 | |
| 67 public MyReader(InputStream monitor_in) { | |
| 68 this.monitor_in = monitor_in; | |
| 69 b = new byte[100]; | |
| 70 Log.i(TAG, "MyReader constructor"); | |
| 71 } | |
| 72 | |
| 73 public void closing() { | |
| 74 is_closing = true; | |
| 75 } | |
| 76 | |
| 77 private char[] forceRead(int len) throws IOException { | |
| 78 int len2 = len * 2; | |
| 79 int off = 0; | |
| 80 | |
| 81 if (b.length < len2) b = new byte[len2]; | |
| 82 | |
| 83 while (off < len2) { | |
| 84 int l = monitor_in.read(b, off, len2 - off); | |
| 85 | |
| 86 if (l < 0) throw new IOException("eof"); | |
| 87 | |
| 88 off += l; | |
| 89 } | |
| 90 | |
| 91 return bytesToChars(b, len2); | |
| 92 } | |
| 93 | |
| 94 public void run() { | |
| 95 while (true) { | |
| 96 try { | |
| 97 char[] len = forceRead(1); | |
| 98 char[] packet = forceRead(len[0]); | |
| 99 char cmd = packet[0]; | |
| 100 Log.i(TAG, String.format("received %d command", (int)cmd)); | |
| 101 | |
| 102 switch (cmd) { | |
| 103 case MONITOR_CMD_SETFIELD: | |
| 104 if (packet.length >= 4) | |
| 105 setField(packet[1], packet[2], packet, 3); | |
| 106 break; | |
| 107 | |
| 108 case MONITOR_CMD_GETFIELD: | |
| 109 if (packet.length == 4) | |
| 110 getField(packet[1], packet[2], packet[3]); | |
| 111 break; | |
| 112 | |
| 113 case MONITOR_CMD_SCREENWATCH: | |
| 114 if (packet.length == 4) | |
| 115 screenWatch(packet[1], packet[2], packet[3]); | |
| 116 break; | |
| 117 | |
| 118 case MONITOR_CMD_DEPRESS: | |
| 119 if (packet.length == 2) | |
| 120 depress(packet[1]); | |
| 121 break; | |
| 122 | |
| 123 default: | |
| 124 break; | |
| 125 } | |
| 126 } | |
| 127 catch (IOException e) { | |
| 128 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 129 | |
| 130 break; | |
| 131 } | |
| 132 } | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 class MyServiceConnection implements ServiceConnection { | |
| 137 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 138 bound = service; | |
| 139 Log.i(TAG, "bound to service"); | |
| 140 | |
| 141 try { | |
| 142 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
| 143 monitor_socket = new Socket(serverAddr, MONITORPORT); | |
| 144 monitor_in = monitor_socket.getInputStream(); | |
| 145 monitor_out = monitor_socket.getOutputStream(); | |
| 146 Log.i(TAG, "connected to monitor socket, send init " + init); | |
| 147 monitor_reader = new MyReader(monitor_in); | |
| 148 monitor_reader.start(); | |
| 149 String x = " " + init; | |
| 150 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); | |
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151 char [] c; |
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152 while (true) { |
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153 c = pending_commands.poll(); |
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154 if (c == null) break; |
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155 monitorWrite(c[1], c); |
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156 } |
| 0 | 157 } |
| 158 catch (IOException e) { | |
| 159 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 160 } | |
| 161 } | |
| 162 public void onServiceDisconnected(ComponentName classNam) { | |
| 163 bound = null; | |
| 164 Log.i(TAG, "unbound from service"); | |
| 165 } | |
| 166 }; | |
| 167 | |
| 168 | |
| 169 public TerminalMonitor(Context parent, vt320 buffer, TerminalKeyListener keyListener, View view, String init) { | |
| 170 this.parent = parent; | |
| 171 this.buffer = buffer; | |
| 172 this.keyListener = keyListener; | |
| 173 this.view = view; | |
| 174 this.init = init; | |
| 175 | |
| 176 // setup the windows->android keymapping | |
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177 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731 |
| 0 | 178 // http://developer.android.com/reference/android/view/KeyEvent.html |
| 179 keymap = new HashMap<Integer,Integer>(); | |
| 180 keymap.put(0x08, KeyEvent.KEYCODE_BACK); // vk_back | |
| 181 keymap.put(0x09, KeyEvent.KEYCODE_TAB); // vk_tab | |
| 182 keymap.put(0x0d, KeyEvent.KEYCODE_ENTER); // vk_return | |
| 183 keymap.put(0x1b, KeyEvent.KEYCODE_ESCAPE); // vk_escape | |
| 184 keymap.put(0x21, KeyEvent.KEYCODE_PAGE_UP); // vk_prior | |
| 185 keymap.put(0x22, KeyEvent.KEYCODE_PAGE_DOWN); // vk_next | |
| 186 keymap.put(0x23, KeyEvent.KEYCODE_MOVE_END); // vk_end | |
| 187 keymap.put(0x24, KeyEvent.KEYCODE_MOVE_HOME); // vk_home | |
| 188 keymap.put(0x25, KeyEvent.KEYCODE_DPAD_LEFT); // vk_left | |
| 189 keymap.put(0x26, KeyEvent.KEYCODE_DPAD_UP); // vk_up | |
| 190 keymap.put(0x27, KeyEvent.KEYCODE_DPAD_RIGHT); // vk_right | |
| 191 keymap.put(0x28, KeyEvent.KEYCODE_DPAD_DOWN); // vk_down | |
| 192 keymap.put(0x2d, KeyEvent.KEYCODE_INSERT); // vk_insert | |
| 193 keymap.put(0x2e, KeyEvent.KEYCODE_DEL); // vk_delete | |
| 194 keymap.put(0x70, KeyEvent.KEYCODE_F1); // vk_f1 | |
| 195 keymap.put(0x71, KeyEvent.KEYCODE_F2); // vk_f2 | |
| 196 keymap.put(0x72, KeyEvent.KEYCODE_F3); // vk_f3 | |
| 197 keymap.put(0x73, KeyEvent.KEYCODE_F4); // vk_f4 | |
| 198 keymap.put(0x74, KeyEvent.KEYCODE_F5); // vk_f5 | |
| 199 keymap.put(0x75, KeyEvent.KEYCODE_F6); // vk_f6 | |
| 200 keymap.put(0x76, KeyEvent.KEYCODE_F7); // vk_f7 | |
| 201 keymap.put(0x77, KeyEvent.KEYCODE_F8); // vk_f8 | |
| 202 keymap.put(0x78, KeyEvent.KEYCODE_F9); // vk_f9 | |
| 203 keymap.put(0x79, KeyEvent.KEYCODE_F10); // vk_f10 | |
| 204 keymap.put(0x7a, KeyEvent.KEYCODE_F11); // vk_f11 | |
| 205 keymap.put(0x7b, KeyEvent.KEYCODE_F12); // vk_f12 | |
| 206 | |
| 207 // bind to the monitor service | |
| 208 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 209 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 210 Log.i(TAG, "constructor"); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 public void Disconnect() { | |
| 215 if (monitor_reader != null) monitor_reader.closing(); | |
| 216 | |
| 217 try { | |
| 218 if (monitor_out != null) monitor_out.close(); | |
| 219 | |
| 220 if (monitor_in != null) monitor_in.close(); | |
| 221 | |
| 222 if (monitor_socket != null) monitor_socket.close(); | |
| 223 | |
| 224 Log.i(TAG, "disconnected from monitor socket"); | |
| 225 } | |
| 226 catch (IOException e) { | |
| 227 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 228 } | |
| 229 | |
| 230 monitor_reader = null; | |
| 231 monitor_out = null; | |
| 232 monitor_in = null; | |
| 233 monitor_socket = null; | |
| 234 | |
| 235 if (bound != null) parent.unbindService(monitor_connection); | |
| 236 | |
| 237 monitor_connection = null; | |
| 238 } | |
| 239 | |
| 240 | |
| 241 public char[] bytesToChars(byte[] b, int len) { | |
| 242 char[] c = new char[len >> 1]; | |
| 243 int bp = 0; | |
| 244 | |
| 245 for (int i = 0; i < c.length; i++) { | |
| 246 byte b1 = b[bp++]; | |
| 247 byte b2 = b[bp++]; | |
| 248 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 249 } | |
| 250 | |
| 251 return c; | |
| 252 } | |
| 253 | |
| 254 | |
| 255 public byte[] charsToBytes(char[] c) { | |
| 256 byte[] b = new byte[c.length << 1]; | |
| 257 int bp = 0; | |
| 258 | |
| 259 for (int i = 0; i < c.length; i++) { | |
| 260 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 261 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 262 } | |
| 263 | |
| 264 return b; | |
| 265 } | |
| 266 | |
| 267 | |
| 268 public synchronized void monitorWrite(char cmd, char[] c) { | |
| 269 try { | |
| 270 if (monitor_out != null) { | |
| 271 c[0] = (char)(c.length - 1); // number of chars following | |
| 272 c[1] = cmd; | |
| 273 //Log.i(TAG, String.format("sending %d command", (int)cmd)); | |
| 274 monitor_out.write(charsToBytes(c)); | |
| 275 } | |
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276 else { |
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277 c[1] = cmd; |
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278 pending_commands.put(c); |
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279 } |
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280 } |
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281 catch (InterruptedException e) { |
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282 Log.e(TAG, "exception in monitorWrite()", e); |
| 0 | 283 } |
| 284 catch (IOException e) { | |
| 285 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); | |
| 286 | |
| 287 try { | |
| 288 monitor_out.close(); | |
| 289 } | |
| 290 catch (IOException ee) { | |
| 291 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); | |
| 292 } | |
| 293 | |
| 294 monitor_out = null; | |
| 295 } | |
| 296 }; | |
| 297 | |
| 298 public void sendScreen(char cmd) { | |
| 299 char lines = (char)(buffer.height & 0x0000ffff); | |
| 300 char columns = (char)(buffer.width & 0x0000ffff); | |
| 301 char[] arg = new char[4 + lines * columns]; | |
| 302 arg[2] = lines; | |
| 303 arg[3] = columns; | |
| 304 int base = 4; | |
| 305 for (int i = 0; i < lines; i++) { | |
| 306 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 307 base += columns; | |
| 308 } | |
| 309 monitorWrite(cmd, arg); | |
| 310 } | |
| 311 | |
| 312 public synchronized void activate() { | |
| 313 sendScreen(MONITOR_CMD_ACTIVATE); | |
| 314 } | |
| 315 | |
| 316 public synchronized void hostData(byte[] b) { | |
| 317 for (int i = 0; i < b.length; i++) { | |
| 318 hostData((int)b[i] & 0xff); | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 public synchronized void hostData(int b) { | |
| 323 char[] arg = new char[3]; | |
| 324 arg[2] = (char)(b & 0x0000ffff); | |
| 325 monitorWrite(MONITOR_CMD_HOSTDATA, arg); | |
| 326 } | |
| 327 | |
| 328 public synchronized void cursorMove(int l, int c) { | |
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329 moved = true; |
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330 to_line = l; |
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331 to_column = c; |
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332 } |
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333 |
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334 public void cursorMoved() { |
| 0 | 335 char[] arg = new char[4]; |
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336 arg[2] = (char)(to_line & 0x0000ffff); |
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337 arg[3] = (char)(to_column & 0x0000ffff); |
| 0 | 338 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); |
| 339 } | |
| 340 | |
| 341 public synchronized void testChanged() { | |
| 342 if (modified) { | |
| 343 modified = false; | |
| 344 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
| 345 } | |
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346 if (moved) { |
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347 moved = false; |
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348 cursorMoved(); |
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349 } |
| 0 | 350 } |
| 351 | |
| 352 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 353 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 354 modified = true; | |
| 355 } | |
| 356 } | |
| 357 | |
| 358 public synchronized void screenChanged(int l, int c) { | |
| 359 screenChanged(l, l, c, c); | |
| 360 } | |
| 361 | |
| 362 public synchronized void setField(int l, int c, char[] data, int offset) { | |
| 363 Log.i(TAG, "setField()"); | |
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364 byte[] b = new byte[data.length - offset]; |
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365 int i; |
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366 for (i=0; i<b.length; i++) { |
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367 b[i] = (byte)(data[i+offset] & 0x00ff); |
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368 } |
| 0 | 369 buffer.write(b); |
| 370 } | |
| 371 | |
| 372 public synchronized void getField(int l, int c, int len) { | |
| 373 Log.i(TAG, "getField()"); | |
| 374 char[] arg2 = new char[4 + len]; | |
| 375 arg2[2] = (char)(l & 0x0000ffff); | |
| 376 arg2[3] = (char)(c & 0x0000ffff); | |
| 377 int base = 4; | |
| 378 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); | |
| 379 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); | |
| 380 } | |
| 381 | |
| 382 public synchronized void screenWatch(int l, int c, int len) { | |
| 383 Log.i(TAG, "screenWatch()"); | |
| 384 start_line = l; | |
| 385 end_line = l; | |
| 386 start_column = c; | |
| 387 end_column = c + len - 1; | |
| 388 } | |
| 389 | |
| 390 public synchronized void depress(int vk_key) { | |
| 391 Log.i(TAG, String.format("depress() %d", vk_key)); | |
| 392 Integer x = keymap.get(new Integer(vk_key)); | |
| 393 if (x != null) { | |
| 394 KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, x.intValue()); | |
| 395 keyListener.onKey(view, event.getKeyCode(), event); | |
| 396 } | |
| 397 } | |
| 398 } |