Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/transport/Local.java @ 35:9925ea1aa279 tn5250
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| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Tue, 10 Jun 2014 15:51:59 -0700 |
| parents | 139394237973 |
| children | 77ac18bc1b2f |
| rev | line source |
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| 0 | 1 /* |
| 2 * ConnectBot: simple, powerful, open-source SSH client for Android | |
| 3 * Copyright 2007 Kenny Root, Jeffrey Sharkey | |
| 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.FileDescriptor; | |
| 21 import java.io.FileInputStream; | |
| 22 import java.io.FileOutputStream; | |
| 23 import java.io.IOException; | |
| 24 import java.util.Map; | |
| 25 | |
| 26 import com.five_ten_sg.connectbot.R; | |
| 27 import com.five_ten_sg.connectbot.bean.HostBean; | |
| 28 import com.five_ten_sg.connectbot.service.TerminalBridge; | |
| 29 import com.five_ten_sg.connectbot.service.TerminalManager; | |
| 30 import com.five_ten_sg.connectbot.util.HostDatabase; | |
| 31 import android.content.Context; | |
| 32 import android.net.Uri; | |
| 33 import android.util.Log; | |
| 34 | |
| 35 import com.google.ase.Exec; | |
| 36 | |
| 37 /** | |
| 38 * @author Kenny Root | |
| 39 * | |
| 40 */ | |
| 41 public class Local extends AbsTransport { | |
| 42 private static final String TAG = "ConnectBot.Local"; | |
| 43 private static final String PROTOCOL = "local"; | |
| 44 private static final String DEFAULT_URI = "local:#Local"; | |
| 45 | |
|
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46 private FileDescriptor shellFd; |
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47 private FileInputStream is; |
| 0 | 48 private FileOutputStream os; |
| 49 | |
| 50 /** | |
| 51 * | |
| 52 */ | |
| 53 public Local() { | |
| 54 } | |
| 55 | |
| 56 | |
| 57 public static String getProtocolName() { | |
| 58 return PROTOCOL; | |
| 59 } | |
| 60 | |
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61 |
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62 public Uri getUri(String input) { |
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63 Uri uri = Uri.parse(DEFAULT_URI); |
| 0 | 64 |
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65 if (input != null && input.length() > 0) { |
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66 uri = uri.buildUpon().fragment(input).build(); |
| 0 | 67 } |
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68 |
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69 return uri; |
| 0 | 70 } |
| 71 | |
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72 |
| 0 | 73 @Override |
| 74 public void connect() { | |
| 75 int[] pids = new int[1]; | |
| 76 | |
| 77 try { | |
| 78 shellFd = Exec.createSubprocess("/system/bin/sh", "-", null, pids); | |
| 79 } | |
| 80 catch (Exception e) { | |
| 81 bridge.outputLine(manager.res.getString(R.string.local_shell_unavailable)); | |
| 82 Log.e(TAG, "Cannot start local shell", e); | |
| 83 return; | |
| 84 } | |
| 85 | |
| 86 final int shellPid = pids[0]; | |
| 87 Runnable exitWatcher = new Runnable() { | |
| 88 public void run() { | |
| 89 Exec.waitFor(shellPid); | |
| 90 bridge.dispatchDisconnect(false); | |
| 91 } | |
| 92 }; | |
| 93 Thread exitWatcherThread = new Thread(exitWatcher); | |
| 94 exitWatcherThread.setName("LocalExitWatcher"); | |
| 95 exitWatcherThread.setDaemon(true); | |
| 96 exitWatcherThread.start(); | |
| 97 is = new FileInputStream(shellFd); | |
| 98 os = new FileOutputStream(shellFd); | |
| 99 bridge.onConnected(); | |
| 100 } | |
| 101 | |
| 102 | |
| 103 @Override | |
| 104 public boolean willBlock() { | |
| 105 if (is == null) return true; | |
| 106 try { | |
| 107 return is.available() == 0; | |
| 108 } catch (Exception e) { | |
| 109 return true; | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 @Override | |
| 114 public int read(byte[] buffer, int start, int len) throws IOException { | |
| 115 if (is == null) { | |
| 116 bridge.dispatchDisconnect(false); | |
| 117 throw new IOException("session closed"); | |
| 118 } | |
| 119 | |
| 120 return is.read(buffer, start, len); | |
| 121 } | |
| 122 | |
| 123 @Override | |
| 124 public void write(byte[] buffer) throws IOException { | |
| 125 if (os != null) | |
| 126 os.write(buffer); | |
| 127 } | |
| 128 | |
| 129 @Override | |
| 130 public void write(int c) throws IOException { | |
| 131 if (os != null) | |
| 132 os.write(c); | |
| 133 } | |
| 134 | |
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135 @Override |
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136 public void flush() throws IOException { |
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137 os.flush(); |
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138 } |
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139 |
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140 @Override |
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141 public void close() { |
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142 try { |
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143 if (os != null) { |
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144 os.close(); |
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145 os = null; |
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146 } |
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147 |
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148 if (is != null) { |
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149 is.close(); |
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150 is = null; |
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151 } |
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152 } |
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153 catch (IOException e) { |
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154 Log.e(TAG, "Couldn't close shell", e); |
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155 } |
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156 } |
| 0 | 157 |
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158 @Override |
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159 public void setDimensions(int columns, int rows, int width, int height) { |
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160 try { |
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161 Exec.setPtyWindowSize(shellFd, rows, columns, width, height); |
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162 } |
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163 catch (Exception e) { |
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164 Log.e(TAG, "Couldn't resize pty", e); |
| 0 | 165 } |
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166 } |
| 0 | 167 |
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168 @Override |
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169 public int getDefaultPort() { |
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170 return 0; |
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171 } |
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172 |
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173 @Override |
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174 public boolean isConnected() { |
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175 return is != null && os != null; |
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176 } |
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177 |
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178 @Override |
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179 public boolean isSessionOpen() { |
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180 return isConnected(); |
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181 } |
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182 |
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183 @Override |
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184 public boolean isAuthenticated() { |
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185 return isConnected(); |
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186 } |
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187 |
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188 @Override |
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189 public String getDefaultNickname(String username, String hostname, int port) { |
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190 return DEFAULT_URI; |
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191 } |
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192 |
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193 @Override |
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194 public void getSelectionArgs(Uri uri, Map<String, String> selection) { |
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195 selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); |
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196 selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); |
| 0 | 197 } |
| 198 | |
| 199 @Override | |
| 200 public HostBean createHost(Uri uri) { | |
| 201 HostBean host = new HostBean(); | |
| 202 host.setProtocol(PROTOCOL); | |
| 203 String nickname = uri.getFragment(); | |
| 204 | |
| 205 if (nickname == null || nickname.length() == 0) { | |
| 206 host.setNickname(getDefaultNickname(host.getUsername(), | |
| 207 host.getHostname(), host.getPort())); | |
| 208 } | |
| 209 else { | |
| 210 host.setNickname(uri.getFragment()); | |
| 211 } | |
| 212 | |
| 213 return host; | |
| 214 } | |
| 215 | |
| 12 | 216 public String getFormatHint(Context context) { |
| 0 | 217 return context.getString(R.string.hostpref_nickname_title); |
| 218 } | |
| 219 | |
| 220 @Override | |
| 221 public boolean usesNetwork() { | |
| 222 return false; | |
| 223 } | |
| 224 } |