import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
public class ShellUtil {
/**
* check whether has root permission
*/
public static boolean hasRootPermission() {
return execCommand("echo root", true, false).result == 0;
}
public static CommandResult execCommand(String command, boolean isRoot) {
return execCommand(new String[] {command}, isRoot, true);
}
public static CommandResult execCommand(String command, boolean isRoot, boolean isNeedResultMsg) {
return execCommand(new String[]{command}, isRoot, isNeedResultMsg);
}
public static CommandResult execCommand(List<String> commands, boolean isRoot, boolean isNeedResultMsg) {
return execCommand(commands == null ? null : commands.toArray(new String[]{}), isRoot, isNeedResultMsg);
}
/**
* execute shell commands
* {@link CommandResult#result} is -1, there maybe some excepiton.
*
* @param commands command array
* @param isRoot whether need to run with root
* @param needResponse whether need result msg
*/
public static CommandResult execCommand(String[] commands, boolean isRoot, boolean needResponse) {
int result = -1;
if (commands == null || commands.length == 0) {
return new CommandResult(result, null, "空命令");
}
Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = null;
StringBuilder errorMsg = null;
DataOutputStream os = null;
try {
process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
os = new DataOutputStream(process.getOutputStream());
for (String command : commands) {
if (command == null) {
continue;
}
// donnot use os.writeBytes(commmand), avoid chinese charset error
os.write(command.getBytes());
os.writeBytes(COMMAND_LINE_END);
os.flush();
}
os.writeBytes(COMMAND_EXIT);
os.flush();
result = process.waitFor();
if (needResponse) {
successMsg = new StringBuilder();
errorMsg = new StringBuilder();
successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String s;
while ((s = successResult.readLine()) != null) {
successMsg.append(s).append("\n");
}
while ((s = errorResult.readLine()) != null) {
errorMsg.append(s);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (errorResult != null) {
errorResult.close();
}
if (successResult != null) {
successResult.close();
}
if (os != null) {
os.close();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (process != null) {
process.destroy();
}
}
}
return new CommandResult(result, successMsg == null ? null : successMsg.toString(), errorMsg == null ? null
: errorMsg.toString());
}
public static class CommandResult {
public int result;
public String responseMsg;
public String errorMsg;
public CommandResult(int result) {
this.result = result;
}
public CommandResult(int result, String responseMsg, String errorMsg) {
this.result = result;
this.responseMsg = responseMsg;
this.errorMsg = errorMsg;
}
}
public static final String COMMAND_SU = "su";
public static final String COMMAND_SH = "sh";
public static final String COMMAND_EXIT = "exit\n";
public static final String COMMAND_LINE_END = "\n"; |
