diff src/com/five_ten_sg/connectbot/transport/Local.java @ 0:0ce5cc452d02

initial version
author Carl Byington <carl@five-ten-sg.com>
date Thu, 22 May 2014 10:41:19 -0700
parents
children 6aaefb22d876
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/five_ten_sg/connectbot/transport/Local.java	Thu May 22 10:41:19 2014 -0700
@@ -0,0 +1,234 @@
+/*
+ * ConnectBot: simple, powerful, open-source SSH client for Android
+ * Copyright 2007 Kenny Root, Jeffrey Sharkey
+ *
+ * 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.FileDescriptor;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Map;
+
+import com.five_ten_sg.connectbot.R;
+import com.five_ten_sg.connectbot.bean.HostBean;
+import com.five_ten_sg.connectbot.service.TerminalBridge;
+import com.five_ten_sg.connectbot.service.TerminalManager;
+import com.five_ten_sg.connectbot.util.HostDatabase;
+import android.content.Context;
+import android.net.Uri;
+import android.util.Log;
+
+import com.google.ase.Exec;
+
+/**
+ * @author Kenny Root
+ *
+ */
+public class Local extends AbsTransport {
+    private static final String TAG = "ConnectBot.Local";
+    private static final String PROTOCOL = "local";
+
+    private static final String DEFAULT_URI = "local:#Local";
+
+    private FileDescriptor shellFd;
+
+    private FileInputStream is;
+    private FileOutputStream os;
+
+    /**
+     *
+     */
+    public Local() {
+    }
+
+    /**
+     * @param host
+     * @param bridge
+     * @param manager
+     */
+    public Local(HostBean host, TerminalBridge bridge, TerminalManager manager) {
+        super(host, bridge, manager);
+    }
+
+    public static String getProtocolName() {
+        return PROTOCOL;
+    }
+
+    @Override
+    public void close() {
+        try {
+            if (os != null) {
+                os.close();
+                os = null;
+            }
+
+            if (is != null) {
+                is.close();
+                is = null;
+            }
+        }
+        catch (IOException e) {
+            Log.e(TAG, "Couldn't close shell", e);
+        }
+    }
+
+    @Override
+    public void connect() {
+        int[] pids = new int[1];
+
+        try {
+            shellFd = Exec.createSubprocess("/system/bin/sh", "-", null, pids);
+        }
+        catch (Exception e) {
+            bridge.outputLine(manager.res.getString(R.string.local_shell_unavailable));
+            Log.e(TAG, "Cannot start local shell", e);
+            return;
+        }
+
+        final int shellPid = pids[0];
+        Runnable exitWatcher = new Runnable() {
+            public void run() {
+                Exec.waitFor(shellPid);
+                bridge.dispatchDisconnect(false);
+            }
+        };
+        Thread exitWatcherThread = new Thread(exitWatcher);
+        exitWatcherThread.setName("LocalExitWatcher");
+        exitWatcherThread.setDaemon(true);
+        exitWatcherThread.start();
+        is = new FileInputStream(shellFd);
+        os = new FileOutputStream(shellFd);
+        bridge.onConnected();
+    }
+
+    @Override
+    public void flush() throws IOException {
+        os.flush();
+    }
+
+    @Override
+    public String getDefaultNickname(String username, String hostname, int port) {
+        return DEFAULT_URI;
+    }
+
+    @Override
+    public int getDefaultPort() {
+        return 0;
+    }
+
+    @Override
+    public boolean isConnected() {
+        return is != null && os != null;
+    }
+
+    @Override
+    public boolean isSessionOpen() {
+        return is != null && os != null;
+    }
+
+    @Override
+    public boolean isAuthenticated() {
+        return isConnected();
+    }
+
+    @Override
+    public boolean willBlock() {
+        if (is == null) return true;
+        try {
+            return is.available() == 0;
+        } catch (Exception e) {
+            return true;
+        }
+    }
+
+    @Override
+    public int read(byte[] buffer, int start, int len) throws IOException {
+        if (is == null) {
+            bridge.dispatchDisconnect(false);
+            throw new IOException("session closed");
+        }
+
+        return is.read(buffer, start, len);
+    }
+
+    @Override
+    public void setDimensions(int columns, int rows, int width, int height) {
+        try {
+            Exec.setPtyWindowSize(shellFd, rows, columns, width, height);
+        }
+        catch (Exception e) {
+            Log.e(TAG, "Couldn't resize pty", e);
+        }
+    }
+
+    @Override
+    public void write(byte[] buffer) throws IOException {
+        if (os != null)
+            os.write(buffer);
+    }
+
+    @Override
+    public void write(int c) throws IOException {
+        if (os != null)
+            os.write(c);
+    }
+
+    public static Uri getUri(String input) {
+        Uri uri = Uri.parse(DEFAULT_URI);
+
+        if (input != null && input.length() > 0) {
+            uri = uri.buildUpon().fragment(input).build();
+        }
+
+        return uri;
+    }
+
+    @Override
+    public HostBean createHost(Uri uri) {
+        HostBean host = new HostBean();
+        host.setProtocol(PROTOCOL);
+        String nickname = uri.getFragment();
+
+        if (nickname == null || nickname.length() == 0) {
+            host.setNickname(getDefaultNickname(host.getUsername(),
+                                                host.getHostname(), host.getPort()));
+        }
+        else {
+            host.setNickname(uri.getFragment());
+        }
+
+        return host;
+    }
+
+    @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());
+    }
+
+    public static String getFormatHint(Context context) {
+        return context.getString(R.string.hostpref_nickname_title);
+    }
+
+    /* (non-Javadoc)
+     * @see com.five_ten_sg.connectbot.transport.AbsTransport#usesNetwork()
+     */
+    @Override
+    public boolean usesNetwork() {
+        return false;
+    }
+}