Examples with ContextAction net.sourceforge.htmlunit.corejs.javascript.ContextAction used on opensource projects

Example 1 with ContextAction

use of net.sourceforge.htmlunit.corejs.javascript.ContextAction in project htmlunit by HtmlUnit.

the class XMLHTTPRequest method send.

/**
 * Sends an HTTP request to the server and receives a response.
 * @param body the body of the message being sent with the request.
 */
@JsxFunction
public void send(final Object body) {
    if (webRequest_ == null) {
        setState(STATE_DONE, Context.getCurrentContext());
        return;
    }
    if (sent_) {
        throw Context.reportRuntimeError("Unspecified error (request already sent).");
    }
    sent_ = true;
    prepareRequest(body);
    // quite strange but IE seems to fire state loading twice
    setState(STATE_OPENED, Context.getCurrentContext());
    final Window w = getWindow();
    final WebClient client = w.getWebWindow().getWebClient();
    final AjaxController ajaxController = client.getAjaxController();
    final HtmlPage page = (HtmlPage) w.getWebWindow().getEnclosedPage();
    final boolean synchron = ajaxController.processSynchron(page, webRequest_, async_);
    if (synchron) {
        doSend(Context.getCurrentContext());
    } else {
        // Create and start a thread in which to execute the request.
        final ContextFactory cf = ((JavaScriptEngine) client.getJavaScriptEngine()).getContextFactory();
        final ContextAction<Object> action = cx -> {
            // KEY_STARTING_SCOPE maintains a stack of scopes
            @SuppressWarnings("unchecked") Deque<Scriptable> stack = (Deque<Scriptable>) cx.getThreadLocal(JavaScriptEngine.KEY_STARTING_SCOPE);
            if (null == stack) {
                stack = new ArrayDeque<>();
                cx.putThreadLocal(JavaScriptEngine.KEY_STARTING_SCOPE, stack);
            }
            stack.push(w);
            try {
                doSend(cx);
            } finally {
                stack.pop();
            }
            return null;
        };
        final JavaScriptJob job = BackgroundJavaScriptFactory.theFactory().createJavascriptXMLHttpRequestJob(cf, action);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Starting XMLHTTPRequest thread for asynchronous request");
        }
        jobID_ = w.getWebWindow().getJobManager().addJob(job, page);
    }
}

Example 2 with ContextAction

use of net.sourceforge.htmlunit.corejs.javascript.ContextAction in project htmlunit by HtmlUnit.

the class HTMLCollectionFrames method postMessage.

/**
 * Posts a message.
 * @param message the object passed to the window
 * @param targetOrigin the origin this window must be for the event to be dispatched
 * @param transfer an optional sequence of Transferable objects
 * @see <a href="https://developer.mozilla.org/en-US/docs/Web/API/window.postMessage">MDN documentation</a>
 */
@JsxFunction
public void postMessage(final String message, final String targetOrigin, final Object transfer) {
    final WebWindow webWindow = getWebWindow();
    final Page page = webWindow.getEnclosedPage();
    final URL currentURL = page.getUrl();
    if (!"*".equals(targetOrigin) && !"/".equals(targetOrigin)) {
        final URL targetURL;
        try {
            targetURL = new URL(targetOrigin);
        } catch (final Exception e) {
            throw Context.throwAsScriptRuntimeEx(new Exception("SyntaxError: Failed to execute 'postMessage' on 'Window': Invalid target origin '" + targetOrigin + "' was specified (reason: " + e.getMessage() + "."));
        }
        if (getPort(targetURL) != getPort(currentURL)) {
            return;
        }
        if (!targetURL.getHost().equals(currentURL.getHost())) {
            return;
        }
        if (!targetURL.getProtocol().equals(currentURL.getProtocol())) {
            return;
        }
    }
    final MessageEvent event = new MessageEvent();
    final String origin = currentURL.getProtocol() + "://" + currentURL.getHost() + ':' + currentURL.getPort();
    event.initMessageEvent(Event.TYPE_MESSAGE, false, false, message, origin, "", this, transfer);
    event.setParentScope(this);
    event.setPrototype(getPrototype(event.getClass()));
    final JavaScriptEngine jsEngine = (JavaScriptEngine) webWindow.getWebClient().getJavaScriptEngine();
    final PostponedAction action = new PostponedAction(page, "Window.postMessage") {

        @Override
        public void execute() throws Exception {
            final ContextAction<Object> contextAction = cx -> dispatchEvent(event);
            final ContextFactory cf = jsEngine.getContextFactory();
            cf.call(contextAction);
        }
    };
    jsEngine.addPostponedAction(action);
}

Example 3 with ContextAction

use of net.sourceforge.htmlunit.corejs.javascript.ContextAction in project htmlunit by HtmlUnit.

the class WorkerJob method postMessage.

/**
 * Posts a message to the {@link Worker} in the page's context.
 * @param message the message
 */
@JsxFunction
public void postMessage(final Object message) {
    final MessageEvent event = new MessageEvent();
    event.initMessageEvent(Event.TYPE_MESSAGE, false, false, message, origin_, "", owningWindow_, Undefined.instance);
    event.setParentScope(owningWindow_);
    event.setPrototype(owningWindow_.getPrototype(event.getClass()));
    if (LOG.isDebugEnabled()) {
        LOG.debug("[DedicatedWorker] postMessage: {}" + message);
    }
    final JavaScriptEngine jsEngine = (JavaScriptEngine) owningWindow_.getWebWindow().getWebClient().getJavaScriptEngine();
    final ContextAction<Object> action = cx -> {
        worker_.getEventListenersContainer().executeCapturingListeners(event, null);
        final Object[] args = { event };
        worker_.getEventListenersContainer().executeBubblingListeners(event, args);
        return null;
    };
    final ContextFactory cf = jsEngine.getContextFactory();
    final JavaScriptJob job = new WorkerJob(cf, action, "postMessage: " + Context.toString(message));
    final HtmlPage page = (HtmlPage) owningWindow_.getDocument().getPage();
    owningWindow_.getWebWindow().getJobManager().addJob(job, page);
}

Example 4 with ContextAction

use of net.sourceforge.htmlunit.corejs.javascript.ContextAction in project htmlunit by HtmlUnit.

the class WorkerJob method messagePosted.

void messagePosted(final Object message) {
    final MessageEvent event = new MessageEvent();
    event.initMessageEvent(Event.TYPE_MESSAGE, false, false, message, origin_, "", owningWindow_, Undefined.instance);
    event.setParentScope(owningWindow_);
    event.setPrototype(owningWindow_.getPrototype(event.getClass()));
    final JavaScriptEngine jsEngine = (JavaScriptEngine) owningWindow_.getWebWindow().getWebClient().getJavaScriptEngine();
    final ContextAction<Object> action = cx -> {
        executeEvent(cx, event);
        return null;
    };
    final ContextFactory cf = jsEngine.getContextFactory();
    final JavaScriptJob job = new WorkerJob(cf, action, "messagePosted: " + Context.toString(message));
    final HtmlPage page = (HtmlPage) owningWindow_.getDocument().getPage();
    owningWindow_.getWebWindow().getJobManager().addJob(job, page);
}

Example 5 with ContextAction

use of net.sourceforge.htmlunit.corejs.javascript.ContextAction in project htmlunit by HtmlUnit.

the class DebuggingWebConnection method uncompressJavaScript.

/**
 * Tries to uncompress the JavaScript code in the provided response.
 * @param response the response to uncompress
 * @return a new response with uncompressed JavaScript code or the original response in case of failure
 */
protected WebResponse uncompressJavaScript(final WebResponse response) {
    final WebRequest request = response.getWebRequest();
    final String scriptName = request.getUrl().toString();
    final String scriptSource = response.getContentAsString();
    // skip if it is already formatted? => TODO
    final ContextFactory factory = new ContextFactory();
    final ContextAction<Object> action = cx -> {
        cx.setOptimizationLevel(-1);
        final Script script = cx.compileString(scriptSource, scriptName, 0, null);
        return cx.decompileScript(script, 4);
    };
    try {
        final String decompileScript = (String) factory.call(action);
        final List<NameValuePair> responseHeaders = new ArrayList<>(response.getResponseHeaders());
        for (int i = responseHeaders.size() - 1; i >= 0; i--) {
            if ("content-encoding".equalsIgnoreCase(responseHeaders.get(i).getName())) {
                responseHeaders.remove(i);
            }
        }
        final WebResponseData wrd = new WebResponseData(decompileScript.getBytes(), response.getStatusCode(), response.getStatusMessage(), responseHeaders);
        return new WebResponse(wrd, response.getWebRequest().getUrl(), response.getWebRequest().getHttpMethod(), response.getLoadTime());
    } catch (final Exception e) {
        LOG.warn("Failed to decompress JavaScript response. Delivering as it.", e);
    }
    return response;
}