/**
* Constructs a service url from the HttpServletRequest or from the given serviceUrl. Prefers the
* serviceUrl provided if both a serviceUrl and a serviceName.
*
* @param request the HttpServletRequest
* @param response the HttpServletResponse
* @param service the configured service url (this will be used if not null)
* @param serverName the server name to use to constuct the service url if the service param is
* empty
* @param artifactParameterName the artifact parameter name to remove (i.e. ticket)
* @param encode whether to encode the url or not (i.e. Jsession).
* @return the service url to use.
*/
public static String constructServiceUrl(
final HttpServletRequest request,
final HttpServletResponse response,
final String service,
final String serverName,
final String artifactParameterName,
final boolean encode) {
if (CommonUtils.isNotBlank(service)) {
return encode ? response.encodeURL(service) : service;
}
final StringBuilder buffer = new StringBuilder();
if (!serverName.startsWith("https://") && !serverName.startsWith("http://")) {
buffer.append(request.isSecure() ? "https://" : "http://");
}
buffer.append(serverName);
buffer.append(request.getRequestURI());
if (CommonUtils.isNotBlank(request.getQueryString())) {
final int location = request.getQueryString().indexOf(artifactParameterName + "=");
if (location == 0) {
final String returnValue =
encode ? response.encodeURL(buffer.toString()) : buffer.toString();
if (LOG.isDebugEnabled()) {
LOG.debug("serviceUrl generated: " + returnValue);
}
return returnValue;
}
buffer.append("?");
if (location == -1) {
buffer.append(request.getQueryString());
} else if (location > 0) {
final int actualLocation =
request.getQueryString().indexOf("&" + artifactParameterName + "=");
if (actualLocation == -1) {
buffer.append(request.getQueryString());
} else if (actualLocation > 0) {
buffer.append(request.getQueryString().substring(0, actualLocation));
}
}
}
final String returnValue = encode ? response.encodeURL(buffer.toString()) : buffer.toString();
if (LOG.isDebugEnabled()) {
LOG.debug("serviceUrl generated: " + returnValue);
}
return returnValue;
}
/**
* Contacts the remote URL and returns the response.
*
* @param constructedUrl the url to contact.
* @param hostnameVerifier Host name verifier to use for HTTPS connections.
* @param encoding the encoding to use.
* @return the response.
*/
public static String getResponseFromServer(
final URL constructedUrl, final HostnameVerifier hostnameVerifier, final String encoding) {
URLConnection conn = null;
try {
conn = constructedUrl.openConnection();
if (conn instanceof HttpsURLConnection) {
((HttpsURLConnection) conn).setHostnameVerifier(hostnameVerifier);
}
final BufferedReader in;
if (CommonUtils.isEmpty(encoding)) {
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
} else {
in = new BufferedReader(new InputStreamReader(conn.getInputStream(), encoding));
}
String line;
final StringBuilder stringBuffer = new StringBuilder(255);
while ((line = in.readLine()) != null) {
stringBuffer.append(line);
stringBuffer.append("\n");
}
return stringBuffer.toString();
} catch (final Exception e) {
LOG.error(e.getMessage(), e);
throw new RuntimeException(e);
} finally {
if (conn != null && conn instanceof HttpURLConnection) {
((HttpURLConnection) conn).disconnect();
}
}
}