Mercurial > 510Connectbot
diff app/src/main/java/com/five_ten_sg/connectbot/transport/TN5250.java @ 438:d29cce60f393
migrate from Eclipse to Android Studio
author | Carl Byington <carl@five-ten-sg.com> |
---|---|
date | Thu, 03 Dec 2015 11:23:55 -0800 |
parents | src/com/five_ten_sg/connectbot/transport/TN5250.java@071eccdff8ea |
children | f698820bffdf |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/app/src/main/java/com/five_ten_sg/connectbot/transport/TN5250.java Thu Dec 03 11:23:55 2015 -0800 @@ -0,0 +1,472 @@ +/* + * 510ConnectBot + * Copyright 2014 Carl Byington + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.five_ten_sg.connectbot.transport; + +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.net.Socket; +import java.net.SocketException; +import java.net.UnknownHostException; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import org.tn5250j.framework.tn5250.Screen5250; +import org.tn5250j.framework.tn5250.tnvt; + +import com.five_ten_sg.connectbot.R; +import com.five_ten_sg.connectbot.bean.HostBean; +import com.five_ten_sg.connectbot.bean.PortForwardBean; +import com.five_ten_sg.connectbot.service.TerminalBridge; +import com.five_ten_sg.connectbot.service.TerminalKeyListener; +import com.five_ten_sg.connectbot.service.TerminalManager; +import com.five_ten_sg.connectbot.util.HostDatabase; +import com.five_ten_sg.connectbot.util.PreferenceConstants; +import android.content.Context; +import android.net.Uri; +import android.util.Log; +import android.view.KeyCharacterMap; +import android.view.KeyEvent; +import android.view.View; +import de.mud.terminal.vt320; + + +/** + * @author Carl Byington + * + */ +public class TN5250 extends AbsTransport { + private static final String PROTOCOL = "tn5250"; + private static final String TAG = "ConnectBot.tn5250"; + private static final int DEFAULT_PORT = 23; + + private Screen5250 screen52; + private tnvt handler = null; + private Socket socket; + private boolean connected = false; + + static final Pattern hostmask; + static { + hostmask = Pattern.compile("^([0-9a-z.-]+)(:(\\d+))?$", Pattern.CASE_INSENSITIVE); + } + + + class vt320x5250 extends vt320 { + private HashMap<Integer, Integer> controls; + private HashMap<Integer, String> mnemonics; + + public vt320x5250() { + this(80, 24); + } + + public vt320x5250(int width, int height) { + super(width, height); + controls = new HashMap<Integer, Integer>(); + controls.put(0x01, KEY_PAUSE); // ctrl-a -> [attn] + controls.put(0x08, KEY_BACK_SPACE); + controls.put(0x09, KEY_TAB); + controls.put(0x0d, KEY_ENTER); + controls.put(0x12, KEY_ESCAPE); // ctrl-r -> [reset] + controls.put(0x13, KEY_SYSREQ); // ctrl-s -> [sysreq] + controls.put(0x1b, KEY_ESCAPE); // esc -> [reset] + mnemonics = new HashMap<Integer, String>(); + mnemonics.put(KEY_PAUSE , "[attn]"); + mnemonics.put(KEY_F1 , "[pf1]"); + mnemonics.put(KEY_F2 , "[pf2]"); + mnemonics.put(KEY_F3 , "[pf3]"); + mnemonics.put(KEY_F4 , "[pf4]"); + mnemonics.put(KEY_F5 , "[pf5]"); + mnemonics.put(KEY_F6 , "[pf6]"); + mnemonics.put(KEY_F7 , "[pf7]"); + mnemonics.put(KEY_F8 , "[pf8]"); + mnemonics.put(KEY_F9 , "[pf9]"); + mnemonics.put(KEY_F10 , "[pf10]"); + mnemonics.put(KEY_F11 , "[pf11]"); + mnemonics.put(KEY_F12 , "[pf12]"); + mnemonics.put(KEY_F13 , "[pf13]"); + mnemonics.put(KEY_F14 , "[pf14]"); + mnemonics.put(KEY_F15 , "[pf15]"); + mnemonics.put(KEY_F16 , "[pf16]"); + mnemonics.put(KEY_F17 , "[pf17]"); + mnemonics.put(KEY_F18 , "[pf18]"); + mnemonics.put(KEY_F19 , "[pf19]"); + mnemonics.put(KEY_F20 , "[pf20]"); + mnemonics.put(KEY_F21 , "[pf21]"); + mnemonics.put(KEY_F22 , "[pf22]"); + mnemonics.put(KEY_F23 , "[pf23]"); + mnemonics.put(KEY_F24 , "[pf24]"); + mnemonics.put(KEY_UP , "[up]"); + mnemonics.put(KEY_DOWN , "[down]"); + mnemonics.put(KEY_LEFT , "[left]"); + mnemonics.put(KEY_RIGHT , "[right]"); + mnemonics.put(KEY_PAGE_DOWN , "[pgdown]"); + mnemonics.put(KEY_PAGE_UP , "[pgup]"); + mnemonics.put(KEY_INSERT , "[insert]"); + mnemonics.put(KEY_DELETE , "[delete]"); + mnemonics.put(KEY_BACK_SPACE , "[backspace]"); + mnemonics.put(KEY_HOME , "[home]"); + mnemonics.put(KEY_END , "[end]"); + mnemonics.put(KEY_NUM_LOCK , ""); + mnemonics.put(KEY_CAPS_LOCK , ""); + mnemonics.put(KEY_SHIFT , ""); + mnemonics.put(KEY_CONTROL , ""); + mnemonics.put(KEY_ALT , ""); + mnemonics.put(KEY_ENTER , "[enter]"); + mnemonics.put(KEY_NUMPAD0 , "0"); + mnemonics.put(KEY_NUMPAD1 , "1"); + mnemonics.put(KEY_NUMPAD2 , "2"); + mnemonics.put(KEY_NUMPAD3 , "3"); + mnemonics.put(KEY_NUMPAD4 , "4"); + mnemonics.put(KEY_NUMPAD5 , "5"); + mnemonics.put(KEY_NUMPAD6 , "6"); + mnemonics.put(KEY_NUMPAD7 , "7"); + mnemonics.put(KEY_NUMPAD8 , "8"); + mnemonics.put(KEY_NUMPAD9 , "9"); + mnemonics.put(KEY_DECIMAL , "."); + mnemonics.put(KEY_ADD , "+"); + mnemonics.put(KEY_ESCAPE , "[reset]"); + mnemonics.put(KEY_TAB , "[tab]"); + mnemonics.put(KEY_SYSREQ , "[sysreq]"); + } + + @Override + public void debug(String s) { + Log.d(TAG, s); + } + + // monitor injecting a field + @Override + public void setField(int l, int c, char [] data) { + screen52.setField(l, c, data); + } + + // monitor simulating key depress + @Override + public void keyDepressed(int keyCode, char keyChar, int modifiers) { + if (mnemonics.containsKey(keyCode)) { + String s = mnemonics.get(keyCode); + + if (s != "") screen52.sendKeys(s); + } + } + + // terminal key listener found special key, send notification to monitor + @Override + public void monitorKey(boolean down) { + if (bridge.monitor != null) bridge.monitor.keyState(down); + } + + // terminal key listener sending to local screen + @Override + public void write(byte[] b) { + screen52.sendKeys(new String(b)); + + if (bridge.monitor != null) bridge.monitor.testMoved(); + } + @Override + public void write(int b) { + if (controls.containsKey(b)) keyPressed(controls.get(b), ' ', 0); + else screen52.sendKeys(new String(new byte[] {(byte)b})); + + if (bridge.monitor != null) bridge.monitor.testMoved(); + } + @Override + public void keyPressed(int keyCode, char keyChar, int modifiers) { + keyDepressed(keyCode, keyChar, modifiers); + + if (bridge.monitor != null) bridge.monitor.testMoved(); + } + + // 5250 writing to the screen + // test for changed screen contents + @Override + public void testChanged() { + if (bridge.monitor != null) bridge.monitor.testChanged(); + } + @Override + public void putChar(int c, int l, char ch, int attributes) { + if (bridge.monitor != null) bridge.monitor.screenChanged(l, c); + + super.putChar(c, l, ch, attributes); + } + @Override + public void setCursorPosition(int c, int l) { + if (bridge.monitor != null) bridge.monitor.cursorMove(l, c); + + super.setCursorPosition(c, l); + redraw(); + } + }; + + + public TN5250() { + super(); + } + + + /** + * @return protocol part of the URI + */ + public static String getProtocolName() { + return PROTOCOL; + } + + + /** + * Encode the current transport into a URI that can be passed via intent calls. + * @return URI to host + */ + public Uri getUri(String input) { + Matcher matcher = hostmask.matcher(input); + + if (!matcher.matches()) + return null; + + StringBuilder sb = new StringBuilder(); + sb.append(PROTOCOL) + .append("://") + .append(matcher.group(1)); + String portString = matcher.group(3); + int port = DEFAULT_PORT; + + if (portString != null) { + try { + port = Integer.parseInt(portString); + + if (port < 1 || port > 65535) { + port = DEFAULT_PORT; + } + } + catch (NumberFormatException nfe) { + // Keep the default port + } + } + + if (port != DEFAULT_PORT) { + sb.append(':'); + sb.append(port); + } + + sb.append("/#") + .append(Uri.encode(input)); + Uri uri = Uri.parse(sb.toString()); + return uri; + } + + + /** + * Causes transport to connect to the target host. After connecting but before a + * session is started, must call back to {@link TerminalBridge#onConnected()}. + * After that call a session may be opened. + */ + @Override + public void connect() { + screen52 = new Screen5250(); + handler = new tnvt(screen52, true, true, bridge, manager); + screen52.setVT(handler); + screen52.setBuffer(buffer); + bridge.addFontSizeChangedListener(screen52); + connected = handler.connect(host, homeDirectory, buffer); + + if (connected) bridge.onConnected(); + } + + + /** + * Checks if read() will block. If there are no bytes remaining in + * the underlying transport, return true. + */ + @Override + public boolean willBlock() { + // we don't use a relay thread between the transport and the vt320 buffer + return true; + } + + + /** + * Reads from the transport. Transport must support reading into a byte array + * <code>buffer</code> at the start of <code>offset</code> and a maximum of + * <code>length</code> bytes. If the remote host disconnects, throw an + * {@link IOException}. + * @param buffer byte buffer to store read bytes into + * @param offset where to start writing in the buffer + * @param length maximum number of bytes to read + * @return number of bytes read + * @throws IOException when remote host disconnects + */ + public int read(byte[] buffer, int offset, int length) throws IOException { + // we don't use a relay thread between the transport and the vt320 buffer + return 0; + } + + + /** + * Writes to the transport. If the host is not yet connected, simply return without + * doing anything. An {@link IOException} should be thrown if there is an error after + * connection. + * @param buffer bytes to write to transport + * @throws IOException when there is a problem writing after connection + */ + public void write(byte[] buffer) throws IOException { + } + + + /** + * Writes to the transport. See {@link #write(byte[])} for behavior details. + * @param c character to write to the transport + * @throws IOException when there is a problem writing after connection + */ + public void write(int c) throws IOException { + } + + + /** + * Flushes the write commands to the transport. + * @throws IOException when there is a problem writing after connection + */ + public void flush() throws IOException { + } + + + /** + * Closes the connection to the terminal. + */ + public void close() { + handler.disconnect(); + connected = false; + bridge.removeFontSizeChangedListener(screen52); + bridge.dispatchDisconnect(false); + } + + + /** + * Tells the transport what dimensions the display is currently + * @param columns columns of text + * @param rows rows of text + * @param width width in pixels + * @param height height in pixels + */ + @Override + public void setDimensions(int columns, int rows, int width, int height) { + // do nothing + } + + + @Override + public vt320 getTransportBuffer() { + buffer = new vt320x5250(); + return setupTransportBuffer(); + } + + + @Override + public int getDefaultPort() { + return DEFAULT_PORT; + } + + + @Override + public boolean isConnected() { + return connected; + } + + + @Override + public boolean isSessionOpen() { + return connected; + } + + + @Override + public boolean isAuthenticated() { + return connected; + } + + + @Override + public String getDefaultNickname(String username, String hostname, int port) { + if (port == DEFAULT_PORT) { + return String.format("%s", hostname); + } + else { + return String.format("%s:%d", hostname, port); + } + } + + + @Override + public void getSelectionArgs(Uri uri, Map<String, String> selection) { + selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); + selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); + selection.put(HostDatabase.FIELD_HOST_HOSTNAME, uri.getHost()); + int port = uri.getPort(); + + if (port < 0) port = DEFAULT_PORT; + + selection.put(HostDatabase.FIELD_HOST_PORT, Integer.toString(port)); + } + + + @Override + public HostBean createHost(Uri uri) { + HostBean host = new HostBean(); + host.setProtocol(PROTOCOL); + host.setHostname(uri.getHost()); + int port = uri.getPort(); + + if (port < 0) port = DEFAULT_PORT; + + host.setPort(port); + String nickname = uri.getFragment(); + + if (nickname == null || nickname.length() == 0) { + nickname = getDefaultNickname(host.getUsername(), host.getHostname(), host.getPort()); + } + + host.setNickname(nickname); + return host; + } + + + public String getFormatHint(Context context) { + return String.format("%s:%s", + context.getString(R.string.format_hostname), + context.getString(R.string.format_port)); + } + + + @Override + public boolean usesNetwork() { + return true; + } + + + @Override + public boolean needsRelay() { + // we don't use a relay thread between the transport and the vt320 buffer + return false; + } + + public TerminalKeyListener getTerminalKeyListener() { + return new TerminalKeyListener(manager, bridge, buffer, host.getEncoding()); + } + +}