public void doTool(
HttpServletRequest req,
HttpServletResponse res,
Session session,
String placementId,
String toolContextPath,
String toolPathInfo)
throws ToolException, IOException {
if (portal.redirectIfLoggedOut(res)) return;
// find the tool from some site
ToolConfiguration siteTool = SiteService.findTool(placementId);
if (siteTool == null) {
portal.doError(req, res, session, Portal.ERROR_WORKSITE);
return;
}
// Reset the tool state if requested
if (portalService.isResetRequested(req)) {
Session s = SessionManager.getCurrentSession();
ToolSession ts = s.getToolSession(placementId);
ts.clearAttributes();
portalService.setResetState(null);
M_log.debug("Tool state reset");
}
// find the tool registered for this
ActiveTool tool = ActiveToolManager.getActiveTool(siteTool.getToolId());
if (tool == null) {
portal.doError(req, res, session, Portal.ERROR_WORKSITE);
return;
}
// permission check - visit the site (unless the tool is configured to
// bypass)
Site site = null;
if (tool.getAccessSecurity() == Tool.AccessSecurity.PORTAL) {
try {
site = SiteService.getSiteVisit(siteTool.getSiteId());
} catch (IdUnusedException e) {
portal.doError(req, res, session, Portal.ERROR_WORKSITE);
return;
} catch (PermissionException e) {
// if not logged in, give them a chance
if (session.getUserId() == null) {
portal.doLogin(req, res, session, URLUtils.getSafePathInfo(req), false);
} else {
portal.doError(req, res, session, Portal.ERROR_WORKSITE);
}
return;
}
}
// Check to see if the tool is visible
if (!ToolManager.isVisible(site, siteTool)) {
portal.doError(req, res, session, Portal.ERROR_WORKSITE);
return;
}
if (portal.isPortletPlacement(siteTool)) {
String siteType = portal.calcSiteType(siteTool.getSiteId());
// form a context sensitive title
String title =
ServerConfigurationService.getString("ui.service", "Sakai")
+ " : "
+ portal.getSiteHelper().getUserSpecificSiteTitle(site, false)
+ " : "
+ siteTool.getTitle();
PortalRenderContext rcontext =
portal.startPageContext(siteType, title, siteTool.getSkin(), req);
Map m = portal.includeTool(res, req, siteTool);
rcontext.put("tool", m);
portal.sendResponse(rcontext, res, "tool", null);
} else {
M_log.debug("forwardtool in ToolHandler");
portal.forwardTool(
tool, req, res, siteTool, siteTool.getSkin(), toolContextPath, toolPathInfo);
}
}
private String addOrCreateTool(Map payload, boolean trustedConsumer, User user, Site site)
throws LTIException {
// Check if the site already has the tool
String toolPlacementId = null;
String tool_id = (String) payload.get("tool_id");
try {
site = SiteService.getSite(site.getId());
ToolConfiguration toolConfig = site.getToolForCommonId(tool_id);
if (toolConfig != null) {
toolPlacementId = toolConfig.getId();
}
} catch (Exception e) {
M_log.warn(e.getLocalizedMessage(), e);
throw new LTIException("launch.tool.search", "tool_id=" + tool_id, e);
}
if (M_log.isDebugEnabled()) {
M_log.debug("toolPlacementId=" + toolPlacementId);
}
// If tool not in site, and we are a trusted consumer, error
// Otherwise, add tool to the site
ToolConfiguration toolConfig = null;
if (BasicLTIUtil.isBlank(toolPlacementId)) {
try {
SitePage sitePageEdit = null;
sitePageEdit = site.addPage();
sitePageEdit.setTitle(tool_id);
toolConfig = sitePageEdit.addTool();
toolConfig.setTool(tool_id, ToolManager.getTool(tool_id));
toolConfig.setTitle(tool_id);
Properties propsedit = toolConfig.getPlacementConfig();
propsedit.setProperty(
BASICLTI_RESOURCE_LINK, (String) payload.get(BasicLTIConstants.RESOURCE_LINK_ID));
pushAdvisor();
try {
SiteService.save(site);
M_log.info("Tool added, tool_id=" + tool_id + ", siteId=" + site.getId());
} catch (Exception e) {
throw new LTIException(
"launch.site.save", "tool_id=" + tool_id + ", siteId=" + site.getId(), e);
} finally {
popAdvisor();
}
toolPlacementId = toolConfig.getId();
} catch (Exception e) {
throw new LTIException(
"launch.tool.add", "tool_id=" + tool_id + ", siteId=" + site.getId(), e);
}
}
// Get ToolConfiguration for tool if not already setup
if (toolConfig == null) {
toolConfig = site.getToolForCommonId(tool_id);
}
// Check user has access to this tool in this site
if (!ToolManager.isVisible(site, toolConfig)) {
M_log.warn(
"Not allowed to access tool user_id="
+ user.getId()
+ " site="
+ site.getId()
+ " tool="
+ tool_id);
throw new LTIException(
"launch.site.tool.denied",
"user_id=" + user.getId() + " site=" + site.getId() + " tool=" + tool_id,
null);
}
return toolPlacementId;
}
