/**
* @param words
* @param separator
* @return String of words concatonated with the separator
*/
public static String join(double[] words, String separator) {
if (ArrayUtils.isEmpty(words)) return EMPTY;
StringBuilder ret = new StringBuilder();
for (int i = 0; i < words.length; i++) {
if (i > 0) {
ret.append(separator);
}
ret.append(words[i]);
}
return ret.toString();
}
/**
* Returns true if the parameter string prior to the "sig" parameter match the "sig" parameter
* when combined with the key and hashed. For post requests, the parameter order is not guaranteed
* and so is assumed to be sorted alphabetically by key.
*
* @param req
* @param secret
* @return
*/
public static boolean isAuthenticatedRequest(HttpServletRequest req, String secret) {
String query, sig = getStringParameter(req, "sig"), method = req.getMethod();
if (method.equalsIgnoreCase("GET")) {
query = req.getQueryString();
if (StringUtils.isBlank(query) || StringUtils.isBlank(sig)) return false;
query = query.replace("&sig=" + sig, EMPTY);
} else if (method.equalsIgnoreCase("POST")) {
TreeMap<String, String[]> params = new TreeMap(req.getParameterMap());
params.remove("sig"); // remove the signature
StringBuilder buf = new StringBuilder();
for (Map.Entry<String, String[]> entry : params.entrySet()) {
if (buf.length() > 0) buf.append("&");
buf.append(entry.getKey());
buf.append('=');
buf.append(entry.getValue()[0]);
}
query = buf.toString();
} else // We're not supporting auth on non GET or POST requests
return false;
return signQueryString(query, secret).equals(sig);
}
/**
* @param <T>
* @param words to join
* @param separator
* @return String of words concatonated with the separator
*/
public static <T extends Object> String join(Collection<T> words, String separator) {
if (words == null || words.isEmpty()) {
return EMPTY;
}
StringBuilder ret = new StringBuilder();
Iterator<T> itr = words.iterator();
int i = 0;
while (itr.hasNext()) {
if (i > 0) {
ret.append(separator);
}
ret.append(itr.next().toString());
i++;
}
return ret.toString();
}
/**
* @param source
* @return
*/
public static String toCamelCase(String source) {
if (StringUtils.isEmpty(source)) return EMPTY;
if (StringUtils.isBlank(source)) return source;
source = source.replaceAll("-|_|\\.", SPACE);
String[] parts = source.split(SPACE);
StringBuilder ret = new StringBuilder();
for (int i = 0; i < parts.length; i++) {
if (i == 0) {
ret.append(parts[i]);
} else {
ret.append(capitalizeFirst(parts[i]));
}
}
return ret.toString();
}
/**
* @param req
* @return
*/
public static String describeRequest(HttpServletRequest req) {
if (req == null) {
return EMPTY;
}
HttpSession session = null;
try {
session = req.getSession();
} catch (Exception e) {
}
StringBuilder body = new StringBuilder();
body.append("Browser: " + req.getHeader("User-Agent"));
body.append("\n\nRequest Info");
body.append("\nRequest URI: " + req.getRequestURI());
body.append("\nRequest URL: " + req.getRequestURL().toString());
body.append("\nPath Info: " + req.getPathInfo());
body.append("\nQuery String: " + req.getQueryString());
if (session != null) {
body.append("\n\nSession Info");
body.append("\nSession ID: " + session.getId());
body.append("\nSession Created: " + new Date(session.getCreationTime()).toString());
body.append("\nSession Last Accessed: " + new Date(session.getLastAccessedTime()).toString());
}
body.append("\n\nUser Info");
body.append("\nRemote User: "******"\nUser Principal: " + req.getUserPrincipal());
body.append("\n\nServer Info");
String hostname = "", serverInstance = "", ip = "";
try {
hostname = java.net.InetAddress.getLocalHost().getHostName();
serverInstance = System.getProperty("com.sun.aas.instanceName");
ip = java.net.InetAddress.getLocalHost().getHostAddress();
body.append("\nInstance: " + serverInstance + " : " + ip + " : " + hostname);
} catch (Exception e) {
}
return body.toString();
}
