private void handleCASAList(HttpServletRequest request, HttpServletResponse response) {
ArrayList<Application> apps = new ArrayList<Application>();
String allowedToolsConfig =
ServerConfigurationService.getString("basiclti.provider.allowedtools", "");
String[] allowedTools = allowedToolsConfig.split(":");
List<String> allowedToolsList = Arrays.asList(allowedTools);
for (String toolId : allowedToolsList) {
Application app = SakaiCASAUtil.getCASAEntry(toolId);
if (app == null) {
M_log.warn("Could not produce CASA entry for " + toolId);
continue;
}
apps.add(app);
}
try {
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.write(JacksonUtil.prettyPrint(apps));
} catch (Exception e) {
e.printStackTrace();
}
}
private void handleContentItem(
HttpServletRequest request, HttpServletResponse response, Map payload)
throws ServletException, IOException {
String allowedToolsConfig =
ServerConfigurationService.getString("basiclti.provider.allowedtools", "");
String[] allowedTools = allowedToolsConfig.split(":");
List<String> allowedToolsList = Arrays.asList(allowedTools);
String tool_id = (String) request.getParameter("install");
if (tool_id == null) {
ArrayList<Tool> tools = new ArrayList<Tool>();
for (String toolId : allowedToolsList) {
Tool theTool = ToolManager.getTool(toolId);
if (theTool == null) continue;
tools.add(theTool);
}
request.setAttribute("tools", tools);
} else {
if (!allowedToolsList.contains(tool_id)) {
doError(request, response, "launch.tool.notallowed", tool_id, null);
return;
}
final Tool toolCheck = ToolManager.getTool(tool_id);
if (toolCheck == null) {
doError(request, response, "launch.tool.notfound", tool_id, null);
return;
}
String content_item_return_url = (String) payload.get("content_item_return_url");
if (content_item_return_url == null) {
doError(request, response, "content_item.return_url.notfound", tool_id, null);
return;
}
ContentItemResponse resp = SakaiContentItemUtil.getContentItemResponse(tool_id);
if (resp == null) {
doError(request, response, "launch.tool.notfound", tool_id, null);
return;
}
String content_items = resp.prettyPrintLog();
// Set up the return
Map<String, String> ltiMap = new HashMap<String, String>();
Map<String, String> extra = new HashMap<String, String>();
ltiMap.put(
BasicLTIConstants.LTI_MESSAGE_TYPE,
BasicLTIConstants.LTI_MESSAGE_TYPE_CONTENTITEMSELECTION);
ltiMap.put(BasicLTIConstants.LTI_VERSION, BasicLTIConstants.LTI_VERSION_1);
ltiMap.put("content_items", content_items);
String data = (String) payload.get("data");
if (data != null) ltiMap.put("data", data);
M_log.debug("ltiMap=" + ltiMap);
boolean dodebug = M_log.isDebugEnabled();
boolean autosubmit = false;
String launchtext = rb.getString("content_item.install.button");
String back_to_store = rb.getString("content_item.back.to.store");
extra.put(
"button_html",
"<input type=\"submit\" value=\""
+ back_to_store
+ "\"onclick=\"location.href='content.item'; return false;\">");
String launch_html =
BasicLTIUtil.postLaunchHTML(
ltiMap, content_item_return_url, launchtext, autosubmit, dodebug, extra);
request.setAttribute("back_to_store", rb.getString("content_item.back.to.store"));
request.setAttribute("install", tool_id);
request.setAttribute("launch_html", launch_html);
request.setAttribute("tool", toolCheck);
}
// Forward to the JSP
ServletContext sc = this.getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/contentitem.jsp");
try {
rd.forward(request, response);
} catch (Exception e) {
e.printStackTrace();
}
}
