/**
* Same as {@link #getRequestedProjects()}, but with a variable cookieName and parameter name.
* This way it is trivial to implement a project filter ...
*
* @param paramName the name of the request parameter, which possibly contains the project list in
* question.
* @param cookieName name of the cookie which possible contains project lists used as fallback
* @return a possible empty set but never {@code null}.
*/
protected SortedSet<String> getRequestedProjects(String paramName, String cookieName) {
TreeSet<String> set = new TreeSet<>();
List<Project> projects = getEnv().getProjects();
if (projects == null) {
return set;
}
if (projects.size() == 1 && authFramework.isAllowed(req, projects.get(0))) {
set.add(projects.get(0).getDescription());
return set;
}
List<String> vals = getParamVals(paramName);
for (String s : vals) {
Project x = Project.getByDescription(s);
if (x != null && authFramework.isAllowed(req, x)) {
set.add(s);
}
}
if (set.isEmpty()) {
List<String> cookies = getCookieVals(cookieName);
for (String s : cookies) {
Project x = Project.getByDescription(s);
if (x != null && authFramework.isAllowed(req, x)) {
set.add(s);
}
}
}
if (set.isEmpty()) {
Project defaultProject = env.getDefaultProject();
if (defaultProject != null && authFramework.isAllowed(req, defaultProject)) {
set.add(defaultProject.getDescription());
}
}
return set;
}
private PageConfig(HttpServletRequest req) {
this.req = req;
this.authFramework = AuthorizationFramework.getInstance();
}