Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 15:1588e359a972
queue pending monitor commands until socket is open
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Thu, 29 May 2014 12:40:27 -0700 |
| parents | 0ce5cc452d02 |
| children | 48a8daea9221 |
| 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; // "" | |
| 49 private boolean modified = false; // "" | |
| 50 private HashMap<Integer,Integer> keymap = null; | |
| 51 private IBinder bound = null; | |
| 52 private Socket monitor_socket = null; | |
| 53 private InputStream monitor_in = null; | |
| 54 private OutputStream monitor_out = null; | |
| 55 private MyReader monitor_reader = null; | |
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56 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100); |
| 0 | 57 private MyServiceConnection monitor_connection = new MyServiceConnection(); |
| 58 | |
| 59 class MyReader extends Thread { | |
| 60 private InputStream monitor_in; | |
| 61 private byte[] b; | |
| 62 private boolean is_closing = false; | |
| 63 | |
| 64 public MyReader(InputStream monitor_in) { | |
| 65 this.monitor_in = monitor_in; | |
| 66 b = new byte[100]; | |
| 67 Log.i(TAG, "MyReader constructor"); | |
| 68 } | |
| 69 | |
| 70 public void closing() { | |
| 71 is_closing = true; | |
| 72 } | |
| 73 | |
| 74 private char[] forceRead(int len) throws IOException { | |
| 75 int len2 = len * 2; | |
| 76 int off = 0; | |
| 77 | |
| 78 if (b.length < len2) b = new byte[len2]; | |
| 79 | |
| 80 while (off < len2) { | |
| 81 int l = monitor_in.read(b, off, len2 - off); | |
| 82 | |
| 83 if (l < 0) throw new IOException("eof"); | |
| 84 | |
| 85 off += l; | |
| 86 } | |
| 87 | |
| 88 return bytesToChars(b, len2); | |
| 89 } | |
| 90 | |
| 91 public void run() { | |
| 92 while (true) { | |
| 93 try { | |
| 94 char[] len = forceRead(1); | |
| 95 char[] packet = forceRead(len[0]); | |
| 96 char cmd = packet[0]; | |
| 97 Log.i(TAG, String.format("received %d command", (int)cmd)); | |
| 98 | |
| 99 switch (cmd) { | |
| 100 case MONITOR_CMD_SETFIELD: | |
| 101 if (packet.length >= 4) | |
| 102 setField(packet[1], packet[2], packet, 3); | |
| 103 break; | |
| 104 | |
| 105 case MONITOR_CMD_GETFIELD: | |
| 106 if (packet.length == 4) | |
| 107 getField(packet[1], packet[2], packet[3]); | |
| 108 break; | |
| 109 | |
| 110 case MONITOR_CMD_SCREENWATCH: | |
| 111 if (packet.length == 4) | |
| 112 screenWatch(packet[1], packet[2], packet[3]); | |
| 113 break; | |
| 114 | |
| 115 case MONITOR_CMD_DEPRESS: | |
| 116 if (packet.length == 2) | |
| 117 depress(packet[1]); | |
| 118 break; | |
| 119 | |
| 120 default: | |
| 121 break; | |
| 122 } | |
| 123 } | |
| 124 catch (IOException e) { | |
| 125 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 126 | |
| 127 break; | |
| 128 } | |
| 129 } | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 class MyServiceConnection implements ServiceConnection { | |
| 134 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 135 bound = service; | |
| 136 Log.i(TAG, "bound to service"); | |
| 137 | |
| 138 try { | |
| 139 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
| 140 monitor_socket = new Socket(serverAddr, MONITORPORT); | |
| 141 monitor_in = monitor_socket.getInputStream(); | |
| 142 monitor_out = monitor_socket.getOutputStream(); | |
| 143 Log.i(TAG, "connected to monitor socket, send init " + init); | |
| 144 monitor_reader = new MyReader(monitor_in); | |
| 145 monitor_reader.start(); | |
| 146 String x = " " + init; | |
| 147 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); | |
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148 char [] c; |
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149 while (true) { |
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150 c = pending_commands.poll(); |
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151 if (c == null) break; |
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152 monitorWrite(c[1], c); |
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153 } |
| 0 | 154 } |
| 155 catch (IOException e) { | |
| 156 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 157 } | |
| 158 } | |
| 159 public void onServiceDisconnected(ComponentName classNam) { | |
| 160 bound = null; | |
| 161 Log.i(TAG, "unbound from service"); | |
| 162 } | |
| 163 }; | |
| 164 | |
| 165 | |
| 166 public TerminalMonitor(Context parent, vt320 buffer, TerminalKeyListener keyListener, View view, String init) { | |
| 167 this.parent = parent; | |
| 168 this.buffer = buffer; | |
| 169 this.keyListener = keyListener; | |
| 170 this.view = view; | |
| 171 this.init = init; | |
| 172 | |
| 173 // setup the windows->android keymapping | |
| 174 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731%28v=vs.85%29.aspx | |
| 175 // http://developer.android.com/reference/android/view/KeyEvent.html | |
| 176 keymap = new HashMap<Integer,Integer>(); | |
| 177 keymap.put(0x08, KeyEvent.KEYCODE_BACK); // vk_back | |
| 178 keymap.put(0x09, KeyEvent.KEYCODE_TAB); // vk_tab | |
| 179 keymap.put(0x0d, KeyEvent.KEYCODE_ENTER); // vk_return | |
| 180 keymap.put(0x1b, KeyEvent.KEYCODE_ESCAPE); // vk_escape | |
| 181 keymap.put(0x21, KeyEvent.KEYCODE_PAGE_UP); // vk_prior | |
| 182 keymap.put(0x22, KeyEvent.KEYCODE_PAGE_DOWN); // vk_next | |
| 183 keymap.put(0x23, KeyEvent.KEYCODE_MOVE_END); // vk_end | |
| 184 keymap.put(0x24, KeyEvent.KEYCODE_MOVE_HOME); // vk_home | |
| 185 keymap.put(0x25, KeyEvent.KEYCODE_DPAD_LEFT); // vk_left | |
| 186 keymap.put(0x26, KeyEvent.KEYCODE_DPAD_UP); // vk_up | |
| 187 keymap.put(0x27, KeyEvent.KEYCODE_DPAD_RIGHT); // vk_right | |
| 188 keymap.put(0x28, KeyEvent.KEYCODE_DPAD_DOWN); // vk_down | |
| 189 keymap.put(0x2d, KeyEvent.KEYCODE_INSERT); // vk_insert | |
| 190 keymap.put(0x2e, KeyEvent.KEYCODE_DEL); // vk_delete | |
| 191 keymap.put(0x70, KeyEvent.KEYCODE_F1); // vk_f1 | |
| 192 keymap.put(0x71, KeyEvent.KEYCODE_F2); // vk_f2 | |
| 193 keymap.put(0x72, KeyEvent.KEYCODE_F3); // vk_f3 | |
| 194 keymap.put(0x73, KeyEvent.KEYCODE_F4); // vk_f4 | |
| 195 keymap.put(0x74, KeyEvent.KEYCODE_F5); // vk_f5 | |
| 196 keymap.put(0x75, KeyEvent.KEYCODE_F6); // vk_f6 | |
| 197 keymap.put(0x76, KeyEvent.KEYCODE_F7); // vk_f7 | |
| 198 keymap.put(0x77, KeyEvent.KEYCODE_F8); // vk_f8 | |
| 199 keymap.put(0x78, KeyEvent.KEYCODE_F9); // vk_f9 | |
| 200 keymap.put(0x79, KeyEvent.KEYCODE_F10); // vk_f10 | |
| 201 keymap.put(0x7a, KeyEvent.KEYCODE_F11); // vk_f11 | |
| 202 keymap.put(0x7b, KeyEvent.KEYCODE_F12); // vk_f12 | |
| 203 | |
| 204 // bind to the monitor service | |
| 205 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 206 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 207 Log.i(TAG, "constructor"); | |
| 208 } | |
| 209 | |
| 210 | |
| 211 public void Disconnect() { | |
| 212 if (monitor_reader != null) monitor_reader.closing(); | |
| 213 | |
| 214 try { | |
| 215 if (monitor_out != null) monitor_out.close(); | |
| 216 | |
| 217 if (monitor_in != null) monitor_in.close(); | |
| 218 | |
| 219 if (monitor_socket != null) monitor_socket.close(); | |
| 220 | |
| 221 Log.i(TAG, "disconnected from monitor socket"); | |
| 222 } | |
| 223 catch (IOException e) { | |
| 224 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 225 } | |
| 226 | |
| 227 monitor_reader = null; | |
| 228 monitor_out = null; | |
| 229 monitor_in = null; | |
| 230 monitor_socket = null; | |
| 231 | |
| 232 if (bound != null) parent.unbindService(monitor_connection); | |
| 233 | |
| 234 monitor_connection = null; | |
| 235 } | |
| 236 | |
| 237 | |
| 238 public char[] bytesToChars(byte[] b, int len) { | |
| 239 char[] c = new char[len >> 1]; | |
| 240 int bp = 0; | |
| 241 | |
| 242 for (int i = 0; i < c.length; i++) { | |
| 243 byte b1 = b[bp++]; | |
| 244 byte b2 = b[bp++]; | |
| 245 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 246 } | |
| 247 | |
| 248 return c; | |
| 249 } | |
| 250 | |
| 251 | |
| 252 public byte[] charsToBytes(char[] c) { | |
| 253 byte[] b = new byte[c.length << 1]; | |
| 254 int bp = 0; | |
| 255 | |
| 256 for (int i = 0; i < c.length; i++) { | |
| 257 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 258 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 259 } | |
| 260 | |
| 261 return b; | |
| 262 } | |
| 263 | |
| 264 | |
| 265 public synchronized void monitorWrite(char cmd, char[] c) { | |
| 266 try { | |
| 267 if (monitor_out != null) { | |
| 268 c[0] = (char)(c.length - 1); // number of chars following | |
| 269 c[1] = cmd; | |
| 270 //Log.i(TAG, String.format("sending %d command", (int)cmd)); | |
| 271 monitor_out.write(charsToBytes(c)); | |
| 272 } | |
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273 else { |
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274 c[1] = cmd; |
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275 pending_commands.put(c); |
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276 } |
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277 } |
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278 catch (InterruptedException e) { |
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279 Log.e(TAG, "exception in monitorWrite()", e); |
| 0 | 280 } |
| 281 catch (IOException e) { | |
| 282 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); | |
| 283 | |
| 284 try { | |
| 285 monitor_out.close(); | |
| 286 } | |
| 287 catch (IOException ee) { | |
| 288 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); | |
| 289 } | |
| 290 | |
| 291 monitor_out = null; | |
| 292 } | |
| 293 }; | |
| 294 | |
| 295 public void sendScreen(char cmd) { | |
| 296 char lines = (char)(buffer.height & 0x0000ffff); | |
| 297 char columns = (char)(buffer.width & 0x0000ffff); | |
| 298 char[] arg = new char[4 + lines * columns]; | |
| 299 arg[2] = lines; | |
| 300 arg[3] = columns; | |
| 301 int base = 4; | |
| 302 for (int i = 0; i < lines; i++) { | |
| 303 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 304 base += columns; | |
| 305 } | |
| 306 monitorWrite(cmd, arg); | |
| 307 } | |
| 308 | |
| 309 public synchronized void activate() { | |
| 310 sendScreen(MONITOR_CMD_ACTIVATE); | |
| 311 } | |
| 312 | |
| 313 public synchronized void hostData(byte[] b) { | |
| 314 for (int i = 0; i < b.length; i++) { | |
| 315 hostData((int)b[i] & 0xff); | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 public synchronized void hostData(int b) { | |
| 320 char[] arg = new char[3]; | |
| 321 arg[2] = (char)(b & 0x0000ffff); | |
| 322 monitorWrite(MONITOR_CMD_HOSTDATA, arg); | |
| 323 } | |
| 324 | |
| 325 public synchronized void cursorMove(int l, int c) { | |
| 326 char[] arg = new char[4]; | |
| 327 arg[2] = (char)(l & 0x0000ffff); | |
| 328 arg[3] = (char)(c & 0x0000ffff); | |
| 329 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); | |
| 330 } | |
| 331 | |
| 332 public synchronized void testChanged() { | |
| 333 if (modified) { | |
| 334 modified = false; | |
| 335 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
| 336 } | |
| 337 } | |
| 338 | |
| 339 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 340 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 341 modified = true; | |
| 342 } | |
| 343 } | |
| 344 | |
| 345 public synchronized void screenChanged(int l, int c) { | |
| 346 screenChanged(l, l, c, c); | |
| 347 } | |
| 348 | |
| 349 public synchronized void setField(int l, int c, char[] data, int offset) { | |
| 350 Log.i(TAG, "setField()"); | |
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351 byte[] b = new byte[data.length - offset]; |
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352 int i; |
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353 for (i=0; i<b.length; i++) { |
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354 b[i] = (byte)(data[i+offset] & 0x00ff); |
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355 } |
| 0 | 356 buffer.write(b); |
| 357 } | |
| 358 | |
| 359 public synchronized void getField(int l, int c, int len) { | |
| 360 Log.i(TAG, "getField()"); | |
| 361 char[] arg2 = new char[4 + len]; | |
| 362 arg2[2] = (char)(l & 0x0000ffff); | |
| 363 arg2[3] = (char)(c & 0x0000ffff); | |
| 364 int base = 4; | |
| 365 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); | |
| 366 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); | |
| 367 } | |
| 368 | |
| 369 public synchronized void screenWatch(int l, int c, int len) { | |
| 370 Log.i(TAG, "screenWatch()"); | |
| 371 start_line = l; | |
| 372 end_line = l; | |
| 373 start_column = c; | |
| 374 end_column = c + len - 1; | |
| 375 } | |
| 376 | |
| 377 public synchronized void depress(int vk_key) { | |
| 378 Log.i(TAG, String.format("depress() %d", vk_key)); | |
| 379 Integer x = keymap.get(new Integer(vk_key)); | |
| 380 if (x != null) { | |
| 381 KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, x.intValue()); | |
| 382 keyListener.onKey(view, event.getKeyCode(), event); | |
| 383 } | |
| 384 } | |
| 385 } |