Mercurial > 510Connectbot
comparison src/com/five_ten_sg/connectbot/transport/Local.java @ 0:0ce5cc452d02
initial version
author | Carl Byington <carl@five-ten-sg.com> |
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date | Thu, 22 May 2014 10:41:19 -0700 |
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children | 6aaefb22d876 |
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-1:000000000000 | 0:0ce5cc452d02 |
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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 | |
45 private static final String DEFAULT_URI = "local:#Local"; | |
46 | |
47 private FileDescriptor shellFd; | |
48 | |
49 private FileInputStream is; | |
50 private FileOutputStream os; | |
51 | |
52 /** | |
53 * | |
54 */ | |
55 public Local() { | |
56 } | |
57 | |
58 /** | |
59 * @param host | |
60 * @param bridge | |
61 * @param manager | |
62 */ | |
63 public Local(HostBean host, TerminalBridge bridge, TerminalManager manager) { | |
64 super(host, bridge, manager); | |
65 } | |
66 | |
67 public static String getProtocolName() { | |
68 return PROTOCOL; | |
69 } | |
70 | |
71 @Override | |
72 public void close() { | |
73 try { | |
74 if (os != null) { | |
75 os.close(); | |
76 os = null; | |
77 } | |
78 | |
79 if (is != null) { | |
80 is.close(); | |
81 is = null; | |
82 } | |
83 } | |
84 catch (IOException e) { | |
85 Log.e(TAG, "Couldn't close shell", e); | |
86 } | |
87 } | |
88 | |
89 @Override | |
90 public void connect() { | |
91 int[] pids = new int[1]; | |
92 | |
93 try { | |
94 shellFd = Exec.createSubprocess("/system/bin/sh", "-", null, pids); | |
95 } | |
96 catch (Exception e) { | |
97 bridge.outputLine(manager.res.getString(R.string.local_shell_unavailable)); | |
98 Log.e(TAG, "Cannot start local shell", e); | |
99 return; | |
100 } | |
101 | |
102 final int shellPid = pids[0]; | |
103 Runnable exitWatcher = new Runnable() { | |
104 public void run() { | |
105 Exec.waitFor(shellPid); | |
106 bridge.dispatchDisconnect(false); | |
107 } | |
108 }; | |
109 Thread exitWatcherThread = new Thread(exitWatcher); | |
110 exitWatcherThread.setName("LocalExitWatcher"); | |
111 exitWatcherThread.setDaemon(true); | |
112 exitWatcherThread.start(); | |
113 is = new FileInputStream(shellFd); | |
114 os = new FileOutputStream(shellFd); | |
115 bridge.onConnected(); | |
116 } | |
117 | |
118 @Override | |
119 public void flush() throws IOException { | |
120 os.flush(); | |
121 } | |
122 | |
123 @Override | |
124 public String getDefaultNickname(String username, String hostname, int port) { | |
125 return DEFAULT_URI; | |
126 } | |
127 | |
128 @Override | |
129 public int getDefaultPort() { | |
130 return 0; | |
131 } | |
132 | |
133 @Override | |
134 public boolean isConnected() { | |
135 return is != null && os != null; | |
136 } | |
137 | |
138 @Override | |
139 public boolean isSessionOpen() { | |
140 return is != null && os != null; | |
141 } | |
142 | |
143 @Override | |
144 public boolean isAuthenticated() { | |
145 return isConnected(); | |
146 } | |
147 | |
148 @Override | |
149 public boolean willBlock() { | |
150 if (is == null) return true; | |
151 try { | |
152 return is.available() == 0; | |
153 } catch (Exception e) { | |
154 return true; | |
155 } | |
156 } | |
157 | |
158 @Override | |
159 public int read(byte[] buffer, int start, int len) throws IOException { | |
160 if (is == null) { | |
161 bridge.dispatchDisconnect(false); | |
162 throw new IOException("session closed"); | |
163 } | |
164 | |
165 return is.read(buffer, start, len); | |
166 } | |
167 | |
168 @Override | |
169 public void setDimensions(int columns, int rows, int width, int height) { | |
170 try { | |
171 Exec.setPtyWindowSize(shellFd, rows, columns, width, height); | |
172 } | |
173 catch (Exception e) { | |
174 Log.e(TAG, "Couldn't resize pty", e); | |
175 } | |
176 } | |
177 | |
178 @Override | |
179 public void write(byte[] buffer) throws IOException { | |
180 if (os != null) | |
181 os.write(buffer); | |
182 } | |
183 | |
184 @Override | |
185 public void write(int c) throws IOException { | |
186 if (os != null) | |
187 os.write(c); | |
188 } | |
189 | |
190 public static Uri getUri(String input) { | |
191 Uri uri = Uri.parse(DEFAULT_URI); | |
192 | |
193 if (input != null && input.length() > 0) { | |
194 uri = uri.buildUpon().fragment(input).build(); | |
195 } | |
196 | |
197 return uri; | |
198 } | |
199 | |
200 @Override | |
201 public HostBean createHost(Uri uri) { | |
202 HostBean host = new HostBean(); | |
203 host.setProtocol(PROTOCOL); | |
204 String nickname = uri.getFragment(); | |
205 | |
206 if (nickname == null || nickname.length() == 0) { | |
207 host.setNickname(getDefaultNickname(host.getUsername(), | |
208 host.getHostname(), host.getPort())); | |
209 } | |
210 else { | |
211 host.setNickname(uri.getFragment()); | |
212 } | |
213 | |
214 return host; | |
215 } | |
216 | |
217 @Override | |
218 public void getSelectionArgs(Uri uri, Map<String, String> selection) { | |
219 selection.put(HostDatabase.FIELD_HOST_PROTOCOL, PROTOCOL); | |
220 selection.put(HostDatabase.FIELD_HOST_NICKNAME, uri.getFragment()); | |
221 } | |
222 | |
223 public static String getFormatHint(Context context) { | |
224 return context.getString(R.string.hostpref_nickname_title); | |
225 } | |
226 | |
227 /* (non-Javadoc) | |
228 * @see com.five_ten_sg.connectbot.transport.AbsTransport#usesNetwork() | |
229 */ | |
230 @Override | |
231 public boolean usesNetwork() { | |
232 return false; | |
233 } | |
234 } |