String[] getMedkit(
String[] availableResources,
String[] requiredResources,
String[] missions,
double P,
double C) {
try {
Runtime rt = Runtime.getRuntime();
Process proc = rt.exec(exec);
OutputStream os = proc.getOutputStream();
InputStream is = proc.getInputStream();
new ErrorReader(proc.getErrorStream()).start();
StringBuffer sb = new StringBuffer();
append(sb, availableResources);
append(sb, requiredResources);
append(sb, missions);
sb.append(P).append('\n');
sb.append(C).append('\n');
os.write(sb.toString().getBytes());
BufferedReader br = new BufferedReader(new InputStreamReader(is));
int N = Integer.parseInt(br.readLine().trim());
String[] ret = new String[N];
for (int i = 0; i < N; i++) ret[i] = br.readLine().trim();
return ret;
} catch (Exception e) {
System.err.println("An error occurred while executing your program");
e.printStackTrace();
return null;
}
}
private String readFile(InputStream stream) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(stream, CharEncoding.UTF_8));
StringBuilder sb = new StringBuilder();
String line = br.readLine();
while (line != null) {
sb.append(line);
sb.append(System.getProperty("line.separator"));
line = br.readLine();
}
return sb.toString();
}
public static void main(String[] args) throws Exception {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
// get user inputted key
byte[] userkey = null;
do {
System.out.println("Please enter a 8 character string to generate a Secret Key");
userkey = (in.readLine()).getBytes();
} while (userkey.length != 8);
// create Key Generator instance and generate a secret key
KeyGenerator kgen = KeyGenerator.getInstance("DES");
SecretKey skey = kgen.generateKey();
byte[] key = userkey;
// Create a Secret Key based on characters entered by the user
SecretKeySpec skeyspec = new SecretKeySpec(key, "DES");
// Create a cipher to encrypt with
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, skeyspec);
// Get message
System.out.println("Please enter a string to encrypt");
byte[] userstring = null;
userstring = (in.readLine()).getBytes();
// Encrypt message with cipher
byte[] encrypted = cipher.doFinal(userstring);
String enc_string = new String(encrypted);
System.out.println("The String is encrypted as " + enc_string);
byte[] userdecrypt = null;
byte[] decrypted = null;
// Get user decrypt key
do {
System.out.println("Please enter the 8 character key to decrypt the message");
userdecrypt = (in.readLine()).getBytes();
} while (userdecrypt.length != 8);
// Reinitialize Secret Key and Cipher
key = userdecrypt;
SecretKeySpec decryptkey = new SecretKeySpec(key, "DES");
cipher.init(Cipher.DECRYPT_MODE, decryptkey);
// Decrypt message
decrypted = cipher.doFinal(encrypted);
if ((new String(decrypted)).equals(new String(userstring)))
System.out.println("\nMessage decrypted as: " + (new String(decrypted)));
else System.out.println("\nMessage was not decrypted");
}
private String getPublicKey(String pubKeyUrl) {
URL url;
InputStream in = null;
try {
url = new URL(pubKeyUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
log.debug("url request in success");
in = conn.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String readLine;
String separator = System.getProperty("line.separator");
StringBuilder sb = new StringBuilder();
while ((readLine = br.readLine()) != null) {
sb.append(readLine).append(separator);
}
String result = sb.toString();
result = result.replace("-----BEGIN PUBLIC KEY-----", "");
result = result.replace("-----END PUBLIC KEY-----", "");
return result;
} catch (IOException e) {
log.error(e.getMessage());
} finally {
try {
if (in != null) {
in.close();
}
} catch (IOException e) {
log.error(e.getMessage());
}
}
return null;
}
/**
* Attempts to log a client in using the authentication server. Authentication server needs to run
* on the same host as the file server.
*
* @throws IOException Error reading from socket.
*/
private void login() throws IOException {
// set up required variables
DatagramSocket clientSocket = new DatagramSocket();
InetAddress authServerIP =
InetAddress
.getLocalHost(); // because authentication server runs on same host as file server
byte[] dataToSend;
byte[] receivedData = new byte[BUFFER_SIZE];
// get username and password
String userName = inFromClient.readLine().trim(); // get username
String password = inFromClient.readLine().trim(); // get password
dataToSend = new String(userName + " " + password).getBytes();
// send the username and password for processing by authentication server
DatagramPacket packetToSend =
new DatagramPacket(dataToSend, dataToSend.length, authServerIP, AUTHENTICATION_PORT);
clientSocket.send(packetToSend);
// receive the response from the authentication server
DatagramPacket receivedPacket = new DatagramPacket(receivedData, receivedData.length);
clientSocket.receive(receivedPacket);
String receivedString = new String(receivedPacket.getData()).trim();
receivedData = receivedString.getBytes();
if (receivedString.equals("yes")) {
outToClient.writeBytes(receivedString); // successful login
} else {
outToClient.writeBytes("no"); // unsuccessful login
}
}
/**
* Runs the server. Waits for client to send a message, and then executes the command matching
* that message.
*/
public void run() {
try {
String[] clientMessage;
// loop for commands
do {
clientMessage = inFromClient.readLine().trim().split(" ");
if (clientMessage.length >= 1) {
if (clientMessage[0].equals("get")) {
if (clientMessage.length >= 2) {
sendFile(clientMessage[1]);
}
} else if (clientMessage[0].equals("list")) {
listFiles();
} else if (clientMessage[0].equals("disconnect")) {
disconnect();
} else if (clientMessage[0].equals("login")) {
login();
}
}
} while (!clientMessage.equals("disconnect"));
} catch (IOException e) {
// System.out.println("Error reading from client.");
} catch (NullPointerException npe) {
disconnect();
}
}
String[] readFile(String fn) throws IOException {
BufferedReader br = new BufferedReader(new FileReader(fn));
String s;
ArrayList al = new ArrayList();
while ((s = br.readLine()) != null) {
al.add(s);
}
return (String[]) al.toArray(new String[0]);
}
private void handleRequest() throws IOException {
String line = in.readLine();
if (line == null || line.length() == 0) {
Log.warn(Thread.currentThread().getName() + ": ignoring empty request.");
return;
}
if (handleCommand(line, out) == false) {
out.println(
Thread.currentThread().getName() + ": didn't understand request \"" + line + "\".");
}
}
public static void main(String args[]) {
int port = 6502;
SSLServerSocket server;
try {
// get the keystore into memory
KeyStore ks = KeyStore.getInstance("JKS");
ks.load(new FileInputStream(keyStore), keyStorePass);
// initialize the key manager factory with the keystore data
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
kmf.init(ks, keyStorePass);
// initialize the SSLContext engine
// may throw NoSuchProvider or NoSuchAlgorithm exception
// TLS - Transport Layer Security most generic
SSLContext sslContext = SSLContext.getInstance("TLS");
// Inititialize context with given KeyManagers, TrustManagers,
// SecureRandom defaults taken if null
sslContext.init(kmf.getKeyManagers(), null, null);
// Get ServerSocketFactory from the context object
ServerSocketFactory ssf = sslContext.getServerSocketFactory();
// Now like programming with normal server sockets
ServerSocket serverSocket = ssf.createServerSocket(port);
System.out.println("Accepting secure connections");
Socket client = serverSocket.accept();
System.out.println("Got connection");
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(client.getOutputStream()));
BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
String username = in.readLine();
String password = in.readLine();
if (username.equals("Josh") && password.equals("GoBucs")) {
out.write("Greeting Client");
} else {
out.write("Sorry, you are not authorized");
}
out.flush();
in.close();
out.close();
} catch (Exception e) {
System.out.println("Exception thrown " + e);
}
}
public static String loadStringFromFile(String filename) {
String line = "";
File file = new File(filename);
if (!file.exists()) return line;
try {
BufferedReader reader = new BufferedReader(new FileReader(file));
line = reader.readLine();
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
return line;
}
/** Execute the system command 'cmd' and fill an ArrayList with the results. */
public static ArrayList<String> executeSystemCommand(String cmd) {
if (debug) System.out.println("cmd: " + cmd);
ArrayList<String> list = new ArrayList<>();
try (BufferedReader br =
new BufferedReader(
new InputStreamReader(RUNTIME.exec(/*comSpec +*/ cmd).getInputStream()))) {
for (String line = null; (line = br.readLine()) != null; ) {
if (debug) System.out.println(line);
list.add(line);
}
} catch (IOException e) {
e.printStackTrace();
}
return list;
}
private boolean authenticateClient() throws IOException {
String line = in.readLine();
if (line == null || line.equals(secret) == false) {
Log.warn(
Thread.currentThread().getName()
+ ": failed authentication attempt with \""
+ line
+ "\".");
out.println("Authentication failed");
return false;
}
writeNewSecret();
out.println("Authentication OK");
return true;
}
public static String ping(String address) {
String reply = "Request timed out";
try (BufferedReader br =
new BufferedReader(
new InputStreamReader(RUNTIME.exec("ping " + address).getInputStream()))) {
for (String line = null; (line = br.readLine()) != null; ) {
if (line.trim().startsWith("Reply ")) {
reply = line;
break;
}
}
} catch (IOException e) {
e.printStackTrace();
}
return reply;
}
public static Properties getEnvironmentVariables() {
synchronized (cygstartPath) {
if (envVars != null) return envVars;
envVars = new Properties();
try (BufferedReader br =
new BufferedReader(
new InputStreamReader(RUNTIME.exec(comSpec + "env").getInputStream()))) {
for (String line = null; (line = br.readLine()) != null; ) {
// if (debug) System.out.println("getEnvironmentVariables(): line=" + line);
int idx = line.indexOf('=');
if (idx > 0) envVars.put(line.substring(0, idx), line.substring(idx + 1));
}
} catch (IOException e) {
e.printStackTrace();
}
return envVars;
}
}
private static PermissionInfo[] getPermissionInfos(URL resource, Framework framework) {
if (resource == null) return null;
PermissionInfo[] info = EMPTY_PERM_INFO;
DataInputStream in = null;
try {
in = new DataInputStream(resource.openStream());
ArrayList permissions = new ArrayList();
BufferedReader reader;
try {
reader = new BufferedReader(new InputStreamReader(in, "UTF8")); // $NON-NLS-1$
} catch (UnsupportedEncodingException e) {
reader = new BufferedReader(new InputStreamReader(in));
}
while (true) {
String line = reader.readLine();
if (line == null) /* EOF */ break;
line = line.trim();
if ((line.length() == 0)
|| line.startsWith("#")
|| line.startsWith("//")) /* comments */ // $NON-NLS-1$ //$NON-NLS-2$
continue;
try {
permissions.add(new PermissionInfo(line));
} catch (IllegalArgumentException iae) {
/* incorrectly encoded permission */
if (framework != null)
framework.publishFrameworkEvent(FrameworkEvent.ERROR, framework.getBundle(0), iae);
}
}
int size = permissions.size();
if (size > 0) info = (PermissionInfo[]) permissions.toArray(new PermissionInfo[size]);
} catch (IOException e) {
// do nothing
} finally {
try {
if (in != null) in.close();
} catch (IOException ee) {
// do nothing
}
}
return info;
}
public void run() {
try {
BufferedReader br =
new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
if (outputFile != null) {
bw =
new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputFile), charset));
}
String line;
while ((line = br.readLine()) != null) {
filePosition += line.length() + 2;
line = line.trim();
if (!line.startsWith("#")) {
String[] sides = split(line);
if ((sides != null) && !sides[0].equals("key")) {
if (searchPHI) {
// Search the decrypted PHI for the searchText
sides[0] = decrypt(sides[0]);
if (sides[0].indexOf(searchText) != -1) {
output(sides[0] + " = " + sides[1] + "\n");
}
} else {
// Search the trial ID for the searchText
if (sides[1].indexOf(searchText) != -1) {
sides[0] = decrypt(sides[0]);
output(sides[0] + " = " + sides[1] + "\n");
}
}
}
}
}
br.close();
if (bw != null) {
bw.flush();
bw.close();
}
} catch (Exception e) {
append("\n\n" + e.getClass().getName() + ": " + e.getMessage() + "\n");
}
append("\nDone.\n");
setMessage("Ready...");
}
/**
* readPEM: Read a PEM encoded base64 stream and decode it
*
* @param is Base64 PEM encoded stream
* @param hdr Header delimeter (e.g. ----------CERTIFICATE---------)
* @param ftr Footer delimeter (e.g. ----------END CERTIFICATE---------)
* @return decoded DER bytes
* @throws IOException if a read error occurs
*/
public static byte[] readPEM(InputStream is, String hdr, String ftr) throws IOException {
logger.debug("Reading PEM hdr:" + hdr + " ftr:" + ftr);
is.reset();
InputStreamReader irr = new InputStreamReader(is);
BufferedReader r = new BufferedReader(irr);
StringBuffer buff = new StringBuffer();
String line;
boolean read = false;
while ((line = r.readLine()) != null) {
if (line.equals(hdr)) {
read = true;
continue;
}
if (line.equals(ftr)) read = false;
if (read) buff.append(line);
}
return Base64.decode(buff.toString().getBytes());
}
public static void loadPermissions(URL url) throws IOException, PermissionParseException {
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
String line;
Pattern ignore = Pattern.compile("^\\s*(//.*)?$");
Pattern valid =
Pattern.compile("^\\s*permission\\s+(\\S+)" + "(\\s+\"([^\"]*)\"(,\\s+\"([^\"]*)\")?)?;$");
Set<Permission> perms = new HashSet<Permission>();
while ((line = in.readLine()) != null) {
if (ignore.matcher(line).matches()) {
continue;
}
Matcher matcher = valid.matcher(line);
if (!matcher.matches()) {
throw new PermissionParseException("invalid syntax: " + line);
}
int nGroups = matcher.groupCount();
String type = matcher.group(1);
String name = expand(nGroups >= 3 ? matcher.group(3) : null);
String actions = expand(nGroups >= 5 ? matcher.group(5) : null);
try {
Permission perm = getPermission(type, name, actions);
perms.add(perm);
} catch (Throwable e) {
String message =
String.format(
"could not instantiate permission: " + "type=%s name=%s actions=",
type, name, actions);
throw new PermissionParseException(message, e);
}
}
in.close();
permSet.addAll(perms);
}
/** Write certficate bytes into a PEM encoded string */
public static String writePEM(byte[] bytes, String hdr, String ftr) throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
Base64OutputStream b64os = new Base64OutputStream(bos);
b64os.write(bytes);
b64os.flush();
b64os.close();
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
InputStreamReader irr = new InputStreamReader(bis);
BufferedReader r = new BufferedReader(irr);
StringBuffer buff = new StringBuffer();
String line;
buff.append(hdr);
while ((line = r.readLine()) != null) {
buff.append(line + "\n");
}
buff.append(ftr);
return buff.toString();
}
public static void main(String[] args) throws Exception {
String digestType = args[0];
String digestFile = args[1];
Vector<String> digestListFiles = new Vector<String>();
Vector<byte[]> calcDigests = new Vector<byte[]>();
BufferedReader reader = null;
byte[] fileContent;
int i;
for (i = 2; i < args.length; i++) {
digestListFiles.add(args[i]);
}
// le os arquivos e calcula o digest de seus conteudos.
for (i = 0; i < digestListFiles.size(); i++) {
File file = new File(digestListFiles.get(i));
fileContent = readFile(file);
MessageDigest messageDigest;
try {
messageDigest = MessageDigest.getInstance(digestType);
} catch (Exception e) {
System.out.println("Inexistant cryptography algorithm given!");
return;
}
messageDigest.update(fileContent);
calcDigests.add(messageDigest.digest());
}
File digestListFile = new File(digestFile);
// verifica se o arquivo existe.
// caso nao exista, cria um novo.
if (!digestListFile.exists()) digestListFile.createNewFile();
// lista dos arquivos ja lidos
Vector<String> fileNames = new Vector<String>();
// lista do tipos dos digest dos arquivos
Vector<String> fileTypes = new Vector<String>();
// lista dos digest dos conteudos dos arquivos
Vector<String> fileDigests = new Vector<String>();
try {
reader = new BufferedReader(new FileReader(digestListFile));
String line;
String[] splitLine;
while ((line = reader.readLine()) != null) {
splitLine = line.split(" ");
fileNames.add(splitLine[0]); // le o nome do arquivo
fileTypes.add(splitLine[1]); // le o tipo do digest
fileDigests.add(splitLine[2]); // le o digest em hex
}
} catch (IOException e) {
System.out.println("Problems reading digest file! " + e.getStackTrace().toString());
}
STATUS status;
int pos;
for (i = 0; i < digestListFiles.size(); i++) {
// procura
pos = find(fileNames, digestListFiles.get(i), fileTypes, digestType);
if (pos != -1) { // achou
// verifica se o conteudo eh igual
if (fileDigests.get(pos).contentEquals(calcHex(calcDigests.get(i)))) {
status = STATUS.OK; // conteudo igual
} else {
status = STATUS.NOTOK; // conteudo diferente
}
} else {
// nao achou!
// insere no arquivo
writeToEOF(
digestListFiles.get(i) + " " + digestType + " " + calcHex(calcDigests.get(i)) + "\n",
digestListFile);
fileNames.add(digestListFiles.get(i));
fileTypes.add(digestType);
fileDigests.add(calcHex(calcDigests.get(i)));
status = STATUS.NOTFOUND;
}
System.out.println(
digestListFiles.get(i)
+ " "
+ digestType
+ " "
+ calcHex(calcDigests.get(i))
+ " ("
+ status.toString()
+ ")");
}
}
/**
* Try to determine whether this application is running under Windows or some other platform by
* examining the "os.name" property.
*/
static {
String os = System.getProperty("os.name");
// String version = System.getProperty("os.version"); // for Win7, reports "6.0" on JDK7, should
// be "6.1"; for Win8, reports "6.2" as of JDK7u17
if (SystemUtils.startsWithIgnoreCase(os, "windows 7"))
isWin7 = true; // reports "Windows Vista" on JDK7
else if (SystemUtils.startsWithIgnoreCase(os, "windows 8"))
isWin7 = true; // reports "Windows 8" as of JDK7u17
else if (SystemUtils.startsWithIgnoreCase(os, "windows vista")) isVista = true;
else if (SystemUtils.startsWithIgnoreCase(os, "windows xp")) isWinXP = true;
else if (SystemUtils.startsWithIgnoreCase(os, "windows 2000")) isWin2k = true;
else if (SystemUtils.startsWithIgnoreCase(os, "windows nt")) isWinNT = true;
else if (SystemUtils.startsWithIgnoreCase(os, "windows"))
isWin9X = true; // win95 or win98 (what about WinME?)
else if (SystemUtils.startsWithIgnoreCase(os, "mac")) isMac = true;
else if (SystemUtils.startsWithIgnoreCase(os, "so")) isSolaris = true; // sunos or solaris
else if (os.equalsIgnoreCase("linux")) isLinux = true;
else isUnix = true; // assume UNIX, e.g. AIX, HP-UX, IRIX
String osarch = System.getProperty("os.arch");
String arch = (osarch != null && osarch.contains("64")) ? "_x64" /* eg. 'amd64' */ : "_x32";
String syslib = SYSLIB + arch;
try { // loading a native lib in a static initializer ensures that it is available before any
// method in this class is called:
System.loadLibrary(syslib);
System.out.println(
"Done loading '" + System.mapLibraryName(syslib) + "', PID=" + getProcessID());
} catch (Error e) {
System.err.println(
"Native library '"
+ System.mapLibraryName(syslib)
+ "' not found in 'java.library.path': "
+ System.getProperty("java.library.path"));
throw e; // re-throw
}
if (isWinPlatform()) {
System.setProperty(
"line.separator", "\n"); // so we won't have to mess with DOS line endings ever again
comSpec =
getEnv(
"comSpec"); // use native method here since getEnvironmentVariable() needs to know
// comSpec
comSpec = (comSpec != null) ? comSpec + " /c " : "";
try (BufferedReader br =
new BufferedReader(
new InputStreamReader(
RUNTIME.exec(comSpec + "ver").getInputStream()))) { // fix for Win7,8
for (String line = null; (line = br.readLine()) != null; ) {
if (isVista && (line.contains("6.1" /*Win7*/) || line.contains("6.2" /*Win8*/))) {
isVista = false;
isWin7 = true;
}
}
} catch (IOException e) {
e.printStackTrace();
}
String cygdir = getEnv("cygdir"); // this is set during CygWin install to "?:/cygwin/bin"
isCygWin = (cygdir != null && !cygdir.equals("%cygdir%"));
cygstartPath = cygdir + "/cygstart.exe"; // path to CygWin's cygutils' "cygstart" binary
if (getDebug() && Desktop.isDesktopSupported()) {
Desktop desktop = Desktop.getDesktop();
for (Desktop.Action action : Desktop.Action.values())
System.out.println(
"Desktop action " + action + " supported? " + desktop.isSupported(action));
}
}
}