public static ScriptableObject require(
Context cx, Scriptable thisObj, Object[] args, Function funObj)
throws ScriptException, IOException {
String functionName = "require";
int argsCount = args.length;
if (argsCount != 1) {
HostObjectUtil.invalidNumberOfArgs(HOST_OBJECT_NAME, functionName, argsCount, false);
}
if (!(args[0] instanceof String)) {
HostObjectUtil.invalidArgsError(
HOST_OBJECT_NAME, functionName, "1", "string", args[0], false);
}
String moduleName = (String) args[0];
JaggeryContext context = getJaggeryContext();
// RhinoEngine engine = context.getEngine();
// ScriptableObject scope = context.getScope();
CommonManager manager = (CommonManager) context.getProperty(Constants.JAGGERY_CORE_MANAGER);
ModuleManager moduleManager = manager.getModuleManager();
JavaScriptModule module = moduleManager.getModule(moduleName);
if (module == null) {
String msg = "A module cannot be found with the specified name : " + moduleName;
log.error(msg);
throw new ScriptException(msg);
}
ScriptableObject object = (ScriptableObject) cx.newObject(thisObj);
object.setPrototype(thisObj);
object.setParentScope(thisObj);
exposeModule(cx, object, module);
return object;
}
protected static ScriptCachingContext getScriptCachingContext(
HttpServletRequest request, String scriptPath) throws ScriptException {
JaggeryContext jaggeryContext = CommonManager.getJaggeryContext();
String tenantId = jaggeryContext.getTenantId();
String[] parts = getKeys(request.getContextPath(), scriptPath, scriptPath);
/**
* tenantId = tenantId context = webapp context path = relative path to the directory of *.js
* file cacheKey = name of the *.js file being cached
*/
ScriptCachingContext sctx = new ScriptCachingContext(tenantId, parts[0], parts[1], parts[2]);
ServletContext servletContext = request.getServletContext();
sctx.setSecurityDomain(
new JaggerySecurityDomain(getNormalizedScriptPath(parts), servletContext));
long lastModified = getScriptLastModified(servletContext, scriptPath);
sctx.setSourceModifiedTime(lastModified);
return sctx;
}
/** JaggeryMethod responsible of writing to the output stream */
public static void print(Context cx, Scriptable thisObj, Object[] args, Function funObj)
throws ScriptException {
String functionName = "print";
JaggeryContext jaggeryContext = getJaggeryContext();
int argsCount = args.length;
if (argsCount != 1) {
HostObjectUtil.invalidNumberOfArgs("RhinoTopLevel", functionName, argsCount, false);
}
OutputStream out =
(OutputStream) jaggeryContext.getProperty(CommonManager.JAGGERY_OUTPUT_STREAM);
if (args[0] instanceof StreamHostObject) {
InputStream in = ((StreamHostObject) args[0]).getStream();
try {
byte[] buffer = new byte[BYTE_BUFFER_SIZE];
int count;
while ((count = in.read(buffer)) != -1) {
out.write(buffer, 0, count);
}
in.close();
} catch (IOException e) {
log.debug(e.getMessage(), e);
throw new ScriptException(e);
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
log.debug(e.getMessage(), e);
}
}
}
} else {
try {
out.write(HostObjectUtil.serializeObject(args[0]).getBytes());
} catch (IOException e) {
log.debug(e.getMessage(), e);
throw new ScriptException(e);
}
}
}
public static void execute(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
String scriptPath = getScriptPath(request);
InputStream sourceIn = request.getServletContext().getResourceAsStream(scriptPath);
if (sourceIn == null) {
response.sendError(HttpServletResponse.SC_NOT_FOUND, request.getRequestURI());
return;
}
RhinoEngine engine = null;
try {
engine = CommonManager.getInstance().getEngine();
Context cx = engine.enterContext();
// Creating an OutputStreamWritter to write content to the servletResponse
OutputStream out = response.getOutputStream();
JaggeryContext webAppContext = createJaggeryContext(out, scriptPath, request, response);
initContext(cx, webAppContext);
RhinoEngine.putContextProperty(
FileHostObject.JAVASCRIPT_FILE_MANAGER,
new WebAppFileManager(request.getServletContext()));
CommonManager.getInstance()
.getEngine()
.exec(
new ScriptReader(sourceIn),
webAppContext.getScope(),
getScriptCachingContext(request, scriptPath));
// out.flush();
} catch (ScriptException e) {
String msg = e.getMessage();
log.error(msg, e);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, msg);
} finally {
// Exiting from the context
if (engine != null) {
RhinoEngine.exitContext();
}
}
}
public static void include(Context cx, Scriptable thisObj, Object[] args, Function funObj)
throws ScriptException {
String functionName = "include";
int argsCount = args.length;
if (argsCount != 1) {
HostObjectUtil.invalidNumberOfArgs(
CommonManager.HOST_OBJECT_NAME, functionName, argsCount, false);
}
if (!(args[0] instanceof String)) {
HostObjectUtil.invalidArgsError(
CommonManager.HOST_OBJECT_NAME, functionName, "1", "string", args[0], false);
}
JaggeryContext jaggeryContext = CommonManager.getJaggeryContext();
Stack<String> includesCallstack = jaggeryContext.getIncludesCallstack();
String parent = includesCallstack.lastElement();
String fileURL = (String) args[0];
if (CommonManager.isHTTP(fileURL) || CommonManager.isHTTP(parent)) {
CommonManager.include(cx, thisObj, args, funObj);
return;
}
executeScript(jaggeryContext, jaggeryContext.getScope(), fileURL, false, false, false);
}
public static void initContext(JaggeryContext context) throws ScriptException {
context.setEngine(manager.engine);
context.setScope(manager.engine.getRuntimeScope());
context.setTenantId(
Integer.toString(PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId()));
context.addProperty(Constants.JAGGERY_CORE_MANAGER, manager);
context.addProperty(Constants.JAGGERY_INCLUDED_SCRIPTS, new HashMap<String, Boolean>());
context.addProperty(Constants.JAGGERY_INCLUDES_CALLSTACK, new Stack<String>());
}
public static void include(Context cx, Scriptable thisObj, Object[] args, Function funObj)
throws ScriptException {
String functionName = "include";
int argsCount = args.length;
if (argsCount != 1 && argsCount != 2) {
HostObjectUtil.invalidNumberOfArgs(HOST_OBJECT_NAME, functionName, argsCount, false);
}
if (!(args[0] instanceof String)) {
HostObjectUtil.invalidArgsError(
HOST_OBJECT_NAME, functionName, "1", "string", args[0], false);
}
if (argsCount == 2 && !(args[1] instanceof ScriptableObject)) {
HostObjectUtil.invalidArgsError(
HOST_OBJECT_NAME, functionName, "2", "Object", args[1], false);
}
JaggeryContext jaggeryContext = getJaggeryContext();
RhinoEngine engine = jaggeryContext.getEngine();
if (engine == null) {
log.error("Rhino Engine in Jaggery context is null");
throw new ScriptException("Rhino Engine in Jaggery context is null");
}
Stack<String> includesCallstack = getCallstack(jaggeryContext);
Map<String, Boolean> includedScripts = getIncludes(jaggeryContext);
String parent = includesCallstack.lastElement();
String fileURL = (String) args[0];
if (isHTTP(fileURL) || isHTTP(parent)) {
if (!isHTTP(fileURL)) {
fileURL = parent + fileURL;
}
if (includesCallstack.search(fileURL) != -1) {
return;
}
ScriptReader source;
ScriptableObject scope;
if (argsCount == 2) {
scope = (ScriptableObject) args[1];
} else {
scope = jaggeryContext.getScope();
}
// this is a remote file url
try {
URL url = new URL(fileURL);
url.openConnection();
source = new ScriptReader(url.openStream());
includedScripts.put(fileURL, true);
includesCallstack.push(fileURL);
engine.exec(source, scope, null);
includesCallstack.pop();
} catch (MalformedURLException e) {
String msg = "Malformed URL. function : import, url : " + fileURL;
log.warn(msg, e);
throw new ScriptException(msg, e);
} catch (IOException e) {
String msg = "IO exception while importing content from url : " + fileURL;
log.warn(msg, e);
throw new ScriptException(msg, e);
}
} else {
String msg = "Unsupported file include : " + fileURL;
throw new ScriptException(msg);
}
}
public static Stack<String> getCallstack(JaggeryContext jaggeryContext) {
return (Stack<String>) jaggeryContext.getProperty(Constants.JAGGERY_INCLUDES_CALLSTACK);
}
public static Map<String, Boolean> getIncludes(JaggeryContext jaggeryContext) {
return (Map<String, Boolean>) jaggeryContext.getProperty(Constants.JAGGERY_INCLUDED_SCRIPTS);
}
public static void initContext(Context cx, JaggeryContext context) throws ScriptException {
CommonManager.initContext(context);
defineProperties(cx, context, context.getScope());
}
private static ScriptableObject executeScript(
JaggeryContext jaggeryContext,
ScriptableObject scope,
String fileURL,
final boolean isJSON,
boolean isBuilt,
boolean isIncludeOnce)
throws ScriptException {
WebAppContext webAppContext = (WebAppContext) jaggeryContext;
Stack<String> includesCallstack = jaggeryContext.getIncludesCallstack();
Map<String, Boolean> includedScripts = jaggeryContext.getIncludedScripts();
ServletContext context = webAppContext.getServletConext();
String parent = includesCallstack.lastElement();
String keys[] = WebAppManager.getKeys(context.getContextPath(), parent, fileURL);
fileURL = getNormalizedScriptPath(keys);
if (includesCallstack.search(fileURL) != -1) {
return scope;
}
if (isIncludeOnce && includedScripts.get(fileURL) != null) {
return scope;
}
ScriptReader source;
RhinoEngine engine = jaggeryContext.getEngine();
if (isBuilt) {
source =
new ScriptReader(context.getResourceAsStream(fileURL)) {
@Override
protected void build() throws IOException {
try {
if (isJSON) {
sourceReader =
new StringReader("(" + HostObjectUtil.streamToString(sourceIn) + ")");
} else {
sourceReader = new StringReader(HostObjectUtil.streamToString(sourceIn));
}
} catch (ScriptException e) {
throw new IOException(e);
}
}
};
} else {
source = new ScriptReader(context.getResourceAsStream(fileURL));
}
ScriptCachingContext sctx =
new ScriptCachingContext(webAppContext.getTenantId(), keys[0], keys[1], keys[2]);
sctx.setSecurityDomain(new JaggerySecurityDomain(fileURL, context));
long lastModified = WebAppManager.getScriptLastModified(context, fileURL);
sctx.setSourceModifiedTime(lastModified);
includedScripts.put(fileURL, true);
includesCallstack.push(fileURL);
if (isJSON) {
scope = (ScriptableObject) engine.eval(source, scope, sctx);
} else {
engine.exec(source, scope, sctx);
}
includesCallstack.pop();
return scope;
}
