/** Concatenate params for URL string */
static String concatParams(String p1, String p2) {
if (StringUtil.isNullString(p1)) {
return p2;
}
if (StringUtil.isNullString(p2)) {
return p1;
}
return p1 + "&" + p2;
}
/**
* Add javascript to page. Normally adds a link to the script file, but can be told to include the
* script directly in the page, to accomodate unit testing of individual servlets, when other
* fetches won't work.
*/
protected void addJavaScript(Composite comp) {
String include = (String) context.getAttribute(ATTR_INCLUDE_SCRIPT);
if (StringUtil.isNullString(include)) {
linkToJavaScript(comp);
} else {
includeJavaScript0(comp);
}
}
/** Concatenate params for URL string */
String concatParams(Properties props) {
if (props == null) {
return null;
}
java.util.List list = new ArrayList();
for (Iterator iter = props.keySet().iterator(); iter.hasNext(); ) {
String key = (String) iter.next();
String val = props.getProperty(key);
if (!StringUtil.isNullString(val)) {
list.add(key + "=" + urlEncode(val));
}
}
return StringUtil.separatedString(list, "&");
}
/**
* Return a (possibly labelled) checkbox.
*
* @param label appears to right of checkbox if non null
* @param value value included in result set if box checked
* @param key form key to which result set is assigned
* @param checked if true, box is initially checked
* @return a checkbox Element
*/
Element checkBox(String label, String value, String key, boolean checked) {
Input in = new Input(Input.Checkbox, key, value);
if (checked) {
in.check();
}
setTabOrder(in);
if (StringUtil.isNullString(label)) {
return in;
} else {
Composite c = new Composite();
c.add(in);
c.add(" ");
c.add(label);
return c;
}
}
protected boolean hasNoRoleParsm(String roleName) {
String noRoleParam = noRoleParams.get(roleName);
return (noRoleParam != null && !StringUtil.isNullString(req.getParameter(noRoleParam)));
}
/** Common request handling. */
public void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
resetState();
boolean success = false;
HttpSession session = req.getSession(false);
try {
this.req = req;
this.resp = resp;
if (log.isDebug()) {
logParams();
}
resp.setContentType("text/html");
if (!mayPageBeCached()) {
resp.setHeader("pragma", "no-cache");
resp.setHeader("Cache-control", "no-cache");
}
reqURL = new URL(UrlUtil.getRequestURL(req));
clientAddr = getLocalIPAddr();
// check that current user has permission to run this servlet
if (!isServletAllowed(myServletDescr())) {
displayWarningInLieuOfPage("You are not authorized to use " + myServletDescr().heading);
return;
}
// check whether servlet is disabled
String reason = ServletUtil.servletDisabledReason(myServletDescr().getServletName());
if (reason != null) {
displayWarningInLieuOfPage("This function is disabled. " + reason);
return;
}
if (session != null) {
session.setAttribute(SESSION_KEY_RUNNING_SERVLET, getHeading());
String reqHost = req.getRemoteHost();
String forw = req.getHeader(HttpFields.__XForwardedFor);
if (!StringUtil.isNullString(forw)) {
reqHost += " (proxies for " + forw + ")";
}
session.setAttribute(SESSION_KEY_REQUEST_HOST, reqHost);
}
lockssHandleRequest();
success = (errMsg == null);
} catch (ServletException e) {
log.error("Servlet threw", e);
throw e;
} catch (IOException e) {
log.error("Servlet threw", e);
throw e;
} catch (RuntimeException e) {
log.error("Servlet threw", e);
throw e;
} finally {
if (session != null) {
session.setAttribute(SESSION_KEY_RUNNING_SERVLET, null);
session.setAttribute(LockssFormAuthenticator.__J_AUTH_ACTIVITY, TimeBase.nowMs());
}
if ("please".equalsIgnoreCase(req.getHeader("X-Lockss-Result"))) {
log.debug3("X-Lockss-Result: " + (success ? "Ok" : "Fail"));
resp.setHeader("X-Lockss-Result", success ? "Ok" : "Fail");
}
resetMyLocals();
resetLocals();
}
}