/** Request a directory listing from the server. */
public void dir() {
String userInput;
BufferedReader srvIn;
Socket srv = null;
/* Setup the appropriate sockets */
setupTransferMode();
out.println(commands[LIST]);
System.out.println("=> LIST");
System.out.println(getResponse());
try {
/* Setup the proper input streams based on the transfer mode */
if (passive) {
srvIn = pasvIn;
} else {
srv = activeSock.accept();
srvIn = new BufferedReader(new InputStreamReader(srv.getInputStream()));
}
/* Display the directory listing */
while ((userInput = srvIn.readLine()) != null) {
System.out.println(userInput);
}
srvIn.close();
if (srv != null) {
srv.close();
}
} catch (IOException e) {
System.err.println("Error recieving data from server: " + e.getMessage());
}
/* Clean up */
closeTransferMode();
System.out.println(getResponse());
}
/**
* Request a specified file from the server.
*
* @param path The path to the file to acquire
*/
public void get(String path) {
String userInput, resp;
BufferedReader srvIn;
InputStream inStr;
Socket srv = null;
/* Initialize the appropriate transfer mode */
setupTransferMode();
/* Request the file */
System.out.println("=> RETR " + path);
out.println("RETR " + path);
/* Spit out the response */
resp = getResponse();
System.out.println(resp);
/* Validate response */
if (!resp.startsWith("150")) {
debug("Invalid response from RETR command; aborting transfer");
closeTransferMode();
return;
}
try {
/* Point to the appropriate input streams based on transfer mode */
if (passive) {
srvIn = pasvIn;
inStr = pasvSock.getInputStream();
} else {
srv = activeSock.accept();
inStr = srv.getInputStream();
}
/* ASCII transfer */
if (ascii) {
FileWriter outFile = new FileWriter(new File(path).getName());
srvIn = new BufferedReader(new InputStreamReader(inStr));
while ((userInput = srvIn.readLine()) != null) {
outFile.write(userInput + line_sep);
}
outFile.close();
srvIn.close();
} else {
/* Binary transfer */
int bytesRead = 0;
byte[] buf = new byte[512];
FileOutputStream outFile = new FileOutputStream(new File(path).getName());
BufferedInputStream binIn = new BufferedInputStream(inStr);
while ((bytesRead = binIn.read(buf, 0, 512)) != -1) {
outFile.write(buf, 0, bytesRead);
}
outFile.close();
binIn.close();
}
if (srv != null) {
srv.close();
}
} catch (IOException e) {
System.err.println("Error acquiring file: " + e.getMessage());
}
/* Clean up */
closeTransferMode();
System.out.println(getResponse());
}
