/**
* Prints specified record.
*
* @param rNbr record ID
*/
private static void printRecord(String rNbr) {
for (Record r : records) {
if (r.getId() == Long.parseLong(rNbr) && r != null) {
System.out.println(r.getMedicalData());
}
}
}
/**
* Sets client command line in an editing state and submits data to server unless it is
* interrupted by the user.
*
* @param rNbr
* @throws IOException
*/
private static void editRecord(String rNbr) throws IOException {
Record record = null;
boolean isDone = false;
for (Record r : records) {
if (r.getId() == Long.parseLong(rNbr)) {
record = r;
}
}
while (!isDone) {
System.out.println("OLD: " + record.getMedicalData());
System.out.print("NEW: ");
msg = read.readLine();
System.out.println("Save change? <yes>/<no>");
String ans = read.readLine();
if (ans.equalsIgnoreCase("yes")) {
out.println(msg);
out.flush();
isDone = true;
System.out.println("Successfully edited record.");
}
}
}
/** Prints records associated to client user. */
private static void printRecords() {
if (!records.isEmpty()) {
System.out.println("Associated records: ");
for (Record r : records) {
System.out.println(r.toString());
}
} else {
System.out.println("No associated records.");
}
}
public static void main(String[] args) throws Exception {
String host = null;
int port = -1;
for (int i = 0; i < args.length; i++) {
System.out.println("args[" + i + "] = " + args[i]);
}
if (args.length < 2) {
System.out.println("USAGE: java client host port");
System.exit(-1);
}
try {
/* get input parameters */
host = args[0];
port = Integer.parseInt(args[1]);
} catch (IllegalArgumentException e) {
System.out.println("USAGE: java client host port");
System.exit(-1);
}
try {
/* set up a key manager for client authentication */
SSLSocketFactory factory = null;
try {
KeyStore ks = KeyStore.getInstance("JKS");
KeyStore ts = KeyStore.getInstance("JKS");
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
SSLContext ctx = SSLContext.getInstance("TLS");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter keystore: ");
String keystoreName = br.readLine();
Console cons = System.console();
if (cons != null) {
password = cons.readPassword("%s", "Password: "******"Cannot find a console to read password from. Eclipse CANNOT fork a terminal child process.");
}
ks.load(new FileInputStream("keystores/" + keystoreName), password); // keystore
// password
// (storepass)
char[] cliTrustPW = "password".toCharArray();
ts.load(new FileInputStream("clienttruststore"), cliTrustPW); // truststore
// password
// (storepass);
kmf.init(ks, password); // user password (keypass)
tmf.init(ts); // keystore can be used as truststore here
ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
factory = ctx.getSocketFactory();
} catch (Exception e) {
e.printStackTrace();
throw new IOException(e.getMessage());
}
SSLSocket socket = (SSLSocket) factory.createSocket(host, port);
System.out.println("Handshake socket: " + socket + "\n");
/*
* send http request
*
* See SSLSocketClient.java for more information about why there is
* a forced handshake here when using PrintWriters.
*/
socket.startHandshake();
SSLSession session = socket.getSession();
X509Certificate cert = (X509Certificate) session.getPeerCertificateChain()[0];
System.out.println("Server DN: " + cert.getSubjectDN().getName());
System.out.println("Handshake socket: " + socket);
System.out.println("Secure connection.");
System.out.println("Issuer DN: " + cert.getIssuerDN().getName());
System.out.println("Serial N: " + cert.getSerialNumber().toString());
read = new BufferedReader(new InputStreamReader(System.in));
serverMsg = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
ois = new ObjectInputStream(socket.getInputStream());
records = new ArrayList<Record>();
boolean isLoggedIn = false;
boolean isDone = false;
isLoggedIn = waitForLoginData();
if (!isLoggedIn) {
System.out.println(
"This certificate does not have a user. \n Press the RETURN key to exit.");
System.console().readLine();
out.close();
read.close();
socket.close();
return;
}
boolean accessDenied = false;
while (!isDone) {
if (accessDenied) {
System.out.println(
"Access denied, or no such record exists! \n Type 'help' for commands.");
}
System.out.print(user.getUsername() + " commands>");
msg = read.readLine();
fetchRecords();
splitMsg = msg.split("\\s+");
try {
if (msg.equalsIgnoreCase("quit")) {
break;
} else if (msg.equalsIgnoreCase("help")) {
printHelp();
} else if (splitMsg[0].equalsIgnoreCase("records")) {
printRecords();
accessDenied = false;
} else if (splitMsg[0].equalsIgnoreCase("edit") && (accessDenied = hasPermissions(msg))) {
editRecord(splitMsg[1]);
fetchRecords();
accessDenied = false;
} else if (splitMsg[0].equalsIgnoreCase("read") && (accessDenied = hasPermissions(msg))) {
printRecord(splitMsg[1]);
accessDenied = false;
} else if (splitMsg[0].equalsIgnoreCase("delete")
&& (accessDenied = hasPermissions(msg))) {
for (Record r : records) {
if (r.getId() == Long.parseLong(splitMsg[1])) {
r.delete(user);
accessDenied = false;
}
}
fetchRecords();
} else if (splitMsg[0].equalsIgnoreCase("create")
&& (accessDenied = hasPermissions(msg))) {
createRecord();
fetchRecords();
accessDenied = false;
} else {
accessDenied = true;
}
} catch (Exception e) {
accessDenied = true;
}
}
ois.close();
out.close();
read.close();
socket.close();
} catch (Exception e) {
e.printStackTrace();
}
}
