protected void checkInstanceHandlerRegistration(boolean register) {
if (register) {
if (!systemInterface.getInstanceHandler().addInstance(StaticContentModule.class, this)) {
log.warn(
"Another instance has already been registered in instance handler for class "
+ StaticContentModule.class.getName());
}
} else {
if (systemInterface.getInstanceHandler().getInstance(StaticContentModule.class) == this) {
systemInterface.getInstanceHandler().removeInstance(StaticContentModule.class);
}
}
}
@Override
public SimpleForegroundModuleResponse processRequest(
HttpServletRequest req, HttpServletResponse res, User user, URIParser uriParser)
throws AccessDeniedException, URINotFoundException {
// TODO add support to separate numeric foreground module aliases from moduleID's (fv prefix?)
// TODO add support to separate background module hashcodes from moduleID's (bv prefix?)
Integer sectionID;
if (uriParser.size() >= 3 && uriParser.get(1).equals("global")) {
if (!enableGlobalContentLinks) {
throw new AccessDeniedException("Global content links are disabled");
}
Properties globalContentLinks = this.globalContentLinks;
if (globalContentLinks == null) {
throw new URINotFoundException(uriParser);
}
if (!globalContentLinks.isEmpty()) {
String filePath = getFilePath(uriParser, 1);
for (Entry<Object, Object> linkEntry : globalContentLinks.entrySet()) {
if (filePath.startsWith(linkEntry.getKey().toString())) {
URL linkedURL = this.getClass().getResource(linkEntry.getValue() + filePath);
if (linkedURL != null) {
try {
InputStream fileStream = linkedURL.openStream();
if (fileStream != null) {
this.sendFile(
req,
res,
uriParser,
linkedURL,
fileStream,
user,
linkEntry.getValue().toString(),
filePath,
null,
null);
return null;
}
} catch (IOException e) {
log.error(
"Unable to load file from url "
+ linkedURL
+ " belonging to global content links",
e);
}
}
}
}
}
} else if (uriParser.size() >= 5
&& (uriParser.get(1).equals("f") || uriParser.get(1).equals("b"))
&& !uriParser.getFormattedURI().contains("..")
&& (sectionID = NumberUtils.toInt(uriParser.get(2))) != null) {
// Get the requested section
SectionInterface sectionInterface = systemInterface.getSectionInterface(sectionID);
if (sectionInterface == null) {
// The requested section is not started or does not exist
throw new AccessDeniedException(
"The requested section ID was not found in cache (URI: "
+ uriParser.getFormattedURI()
+ ")");
} else if (!AccessUtils.checkAccess(user, sectionInterface.getSectionDescriptor())) {
// The user does not have access to the requested section
throw new AccessDeniedException(
"User does not have access to section "
+ sectionInterface.getSectionDescriptor()
+ " (URI: "
+ uriParser.getFormattedURI()
+ ")");
}
// Check that the user has access to all parent section
SectionInterface parentSection = sectionInterface.getParentSectionInterface();
while (parentSection != null) {
if (!AccessUtils.checkAccess(user, parentSection.getSectionDescriptor())) {
// User does not have access to a parent section
throw new AccessDeniedException(
"User does not have access to section "
+ sectionInterface.getSectionDescriptor()
+ " (URI: "
+ uriParser.getFormattedURI()
+ ")");
}
parentSection = parentSection.getParentSectionInterface();
}
boolean foreground = uriParser.get(1).equals("f");
String moduletype;
if (foreground) {
moduletype = "foreground module";
} else {
moduletype = "background module";
}
Integer moduleID = NumberUtils.toInt(uriParser.get(3));
// Get the requested module
Entry<? extends VisibleModuleDescriptor, ? extends Module<?>> moduleEntry = null;
if (moduleID != null) {
if (foreground) {
moduleEntry = sectionInterface.getForegroundModuleCache().getEntry(moduleID);
} else {
moduleEntry = sectionInterface.getBackgroundModuleCache().getEntry(moduleID);
}
}
if (moduleEntry == null) {
if (foreground) {
String alias = uriParser.get(3);
moduleEntry = sectionInterface.getForegroundModuleCache().getEntry(alias);
} else if (moduleID != null) {
moduleEntry = sectionInterface.getBackgroundModuleCache().getEntryByHashCode(moduleID);
}
}
if (moduleEntry != null) {
VisibleModuleDescriptor moduleDescriptor = moduleEntry.getKey();
// Check if the user has access to this module
if (AccessUtils.checkAccess(user, moduleDescriptor)) {
// Check that the module has a static content directory set
if (!StringUtils.isEmpty(moduleDescriptor.getStaticContentPackage())) {
// Check that the requested file exists in the specified classpath directory
String filePath = getFilePath(uriParser, 3);
URL url =
moduleEntry
.getValue()
.getClass()
.getResource(moduleDescriptor.getStaticContentPackage() + filePath);
InputStream fileStream = null;
if (url != null) {
try {
fileStream = url.openStream();
} catch (IOException e) {
}
}
if (fileStream != null) {
log.debug(
"Sending file "
+ moduleDescriptor.getStaticContentPackage()
+ filePath
+ " from "
+ moduletype
+ " "
+ moduleDescriptor
+ " reqested using URI "
+ uriParser.getFormattedURI()
+ " to user "
+ user);
this.sendFile(
req,
res,
uriParser,
url,
fileStream,
user,
moduleDescriptor.getStaticContentPackage(),
filePath,
moduleDescriptor,
moduletype);
return null;
} else if ((fileStream =
moduleEntry
.getValue()
.getClass()
.getResourceAsStream(
moduleDescriptor.getStaticContentPackage()
+ "/StaticContentLinks.properties"))
!= null) {
Properties links = new Properties();
try {
links.load(fileStream);
} catch (IOException e) {
log.error(
"Unable to load static content links belonging to "
+ moduletype
+ " "
+ moduleDescriptor,
e);
} finally {
StreamUtils.closeStream(fileStream);
}
if (!links.isEmpty()) {
for (Entry<Object, Object> linkEntry : links.entrySet()) {
if (filePath.startsWith(linkEntry.getKey().toString())) {
URL linkedURL =
moduleEntry
.getValue()
.getClass()
.getResource(linkEntry.getValue() + filePath);
if (linkedURL != null) {
try {
fileStream = linkedURL.openStream();
if (fileStream != null) {
this.sendFile(
req,
res,
uriParser,
linkedURL,
fileStream,
user,
linkEntry.getValue().toString(),
filePath,
moduleDescriptor,
moduletype);
return null;
}
} catch (IOException e) {
log.error(
"Unable to load file from url "
+ linkedURL
+ " belonging to "
+ moduletype
+ " "
+ moduleDescriptor,
e);
}
}
}
}
}
} else {
log.info(
"File "
+ uriParser.getFormattedURI()
+ " requested from "
+ moduletype
+ " "
+ moduleDescriptor
+ " by user "
+ user
+ " not found");
}
} else {
log.info(
"User "
+ user
+ " requested static content from "
+ moduletype
+ " "
+ moduleDescriptor
+ " which has no static content package set, using URI "
+ uriParser.getFormattedURI());
}
} else {
throw new AccessDeniedException(
"User does not have access to "
+ moduletype
+ " "
+ moduleEntry.getKey()
+ " (URI: "
+ uriParser.getFormattedURI()
+ ")");
}
} else {
log.info(
"Invalid sectionID or moduleID in URI "
+ uriParser.getFormattedURI()
+ " requested by user "
+ user);
}
} else {
log.info("Invalid URI " + uriParser.getFormattedURI() + " requested by user " + user);
}
throw new URINotFoundException(uriParser);
}