public void doProcess(HttpServletRequest req, HttpServletResponse res, boolean isPost) {
StringBuffer bodyContent = null;
OutputStream out = null;
PrintWriter writer = null;
String serviceKey = null;
try {
BufferedReader in = req.getReader();
String line = null;
while ((line = in.readLine()) != null) {
if (bodyContent == null) bodyContent = new StringBuffer();
bodyContent.append(line);
}
} catch (Exception e) {
}
try {
if (requireSession) {
// check to see if there was a session created for this request
// if not assume it was from another domain and blow up
// Wrap this to prevent Portlet exeptions
HttpSession session = req.getSession(false);
if (session == null) {
res.setStatus(HttpServletResponse.SC_FORBIDDEN);
return;
}
}
serviceKey = req.getParameter("id");
// only to preven regressions - Remove before 1.0
if (serviceKey == null) serviceKey = req.getParameter("key");
// check if the services have been loaded or if they need to be reloaded
if (services == null || configUpdated()) {
getServices(res);
}
String urlString = null;
String xslURLString = null;
String userName = null;
String password = null;
String format = "json";
String callback = req.getParameter("callback");
String urlParams = req.getParameter("urlparams");
String countString = req.getParameter("count");
// encode the url to prevent spaces from being passed along
if (urlParams != null) {
urlParams = urlParams.replace(' ', '+');
}
try {
if (services.has(serviceKey)) {
JSONObject service = services.getJSONObject(serviceKey);
// default to the service default if no url parameters are specified
if (urlParams == null && service.has("defaultURLParams")) {
urlParams = service.getString("defaultURLParams");
}
String serviceURL = service.getString("url");
// build the URL
if (urlParams != null && serviceURL.indexOf("?") == -1) {
serviceURL += "?";
} else if (urlParams != null) {
serviceURL += "&";
}
String apikey = "";
if (service.has("username")) userName = service.getString("username");
if (service.has("password")) password = service.getString("password");
if (service.has("apikey")) apikey = service.getString("apikey");
urlString = serviceURL + apikey;
if (urlParams != null) urlString += "&" + urlParams;
if (service.has("xslStyleSheet")) {
xslURLString = service.getString("xslStyleSheet");
}
}
// code for passing the url directly through instead of using configuration file
else if (req.getParameter("url") != null) {
String serviceURL = req.getParameter("url");
// build the URL
if (urlParams != null && serviceURL.indexOf("?") == -1) {
serviceURL += "?";
} else if (urlParams != null) {
serviceURL += "&";
}
urlString = serviceURL;
if (urlParams != null) urlString += urlParams;
} else {
writer = res.getWriter();
if (serviceKey == null)
writer.write("XmlHttpProxyServlet Error: id parameter specifying serivce required.");
else
writer.write(
"XmlHttpProxyServlet Error : service for id '" + serviceKey + "' not found.");
writer.flush();
return;
}
} catch (Exception ex) {
getLogger().severe("XmlHttpProxyServlet Error loading service: " + ex);
}
Map paramsMap = new HashMap();
paramsMap.put("format", format);
// do not allow for xdomain unless the context level setting is enabled.
if (callback != null && allowXDomain) {
paramsMap.put("callback", callback);
}
if (countString != null) {
paramsMap.put("count", countString);
}
InputStream xslInputStream = null;
if (urlString == null) {
writer = res.getWriter();
writer.write(
"XmlHttpProxyServlet parameters: id[Required] urlparams[Optional] format[Optional] callback[Optional]");
writer.flush();
return;
}
// default to JSON
res.setContentType(responseContentType);
out = res.getOutputStream();
// get the stream for the xsl stylesheet
if (xslURLString != null) {
// check the web root for the resource
URL xslURL = null;
xslURL = ctx.getResource(resourcesDir + "xsl/" + xslURLString);
// if not in the web root check the classpath
if (xslURL == null) {
xslURL =
XmlHttpProxyServlet.class.getResource(classpathResourcesDir + "xsl/" + xslURLString);
}
if (xslURL != null) {
xslInputStream = xslURL.openStream();
} else {
String message =
"Could not locate the XSL stylesheet provided for service id "
+ serviceKey
+ ". Please check the XMLHttpProxy configuration.";
getLogger().severe(message);
try {
out.write(message.getBytes());
out.flush();
return;
} catch (java.io.IOException iox) {
}
}
}
if (!isPost) {
xhp.doGet(urlString, out, xslInputStream, paramsMap, userName, password);
} else {
if (bodyContent == null)
getLogger()
.info(
"XmlHttpProxyServlet attempting to post to url "
+ urlString
+ " with no body content");
xhp.doPost(
urlString,
out,
xslInputStream,
paramsMap,
bodyContent.toString(),
req.getContentType(),
userName,
password);
}
} catch (Exception iox) {
iox.printStackTrace();
getLogger().severe("XmlHttpProxyServlet: caught " + iox);
try {
writer = res.getWriter();
writer.write(iox.toString());
writer.flush();
} catch (java.io.IOException ix) {
ix.printStackTrace();
}
return;
} finally {
try {
if (out != null) out.close();
if (writer != null) writer.close();
} catch (java.io.IOException iox) {
}
}
}
private boolean sendError(FacesContext context, String lifecycle, Exception e) {
for (Throwable cause = e; cause != null; cause = cause.getCause()) {
if (cause instanceof DisplayableException) {
if (e instanceof RuntimeException) throw (RuntimeException) e;
else throw new FacesException(e);
} else if (cause instanceof ServletException) throw new FacesException(e);
else if (cause instanceof JspException) throw new FacesException(e);
}
ExternalContext extContext = context.getExternalContext();
Object response = extContext.getResponse();
if (!(response instanceof HttpServletResponse)) {
context.renderResponse();
if (e instanceof RuntimeException) throw (RuntimeException) e;
else throw new RuntimeException(e);
}
log.log(Level.WARNING, e.toString(), e);
HttpServletResponse res = (HttpServletResponse) response;
try {
context.renderResponse();
context.responseComplete();
res.setStatus(500, "JSF Exception");
res.setContentType("text/html");
PrintWriter out = res.getWriter();
out.println("<body>");
out.println("<h3>JSF exception detected in " + lifecycle + " phase</h3>");
String msg = e.getMessage();
out.println("<span style='color:red;font:bold'>" + Html.escapeHtml(msg) + "</span><br/>");
out.println("<h3>Context: " + context.getViewRoot() + "</h3>");
out.println("<code><pre>");
String errorId = null;
if (e instanceof FacesException && msg.startsWith("id=")) {
int p = msg.indexOf(' ');
errorId = msg.substring(3, p);
}
printComponentTree(out, errorId, context, context.getViewRoot(), 0);
out.println("</pre></code>");
if (!Alarm.isTest()) {
out.println("<h3>Stack Trace</h3>");
out.println("<pre>");
if (e.getCause() != null) e.getCause().printStackTrace(out);
else e.printStackTrace(out);
out.println("</pre>");
}
out.println("</body>");
// clear, so we don't just loop
Application app = context.getApplication();
ViewHandler view = app.getViewHandler();
UIViewRoot viewRoot = context.getViewRoot();
viewRoot = view.createView(context, viewRoot.getViewId());
context.setViewRoot(viewRoot);
// view.writeState(context); // XXX: no need to output state, but review.
return true;
} catch (IOException e1) {
throw new RuntimeException(e);
}
}
