ScreensServiceServlet.java
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/*
* Decompiled with CFR 0_118.
*
* Could not load the following classes:
* javax.servlet.ServletException
* org.apache.felix.scr.annotations.Reference
* org.apache.felix.scr.annotations.sling.SlingServlet
* org.apache.sling.api.SlingHttpServletRequest
* org.apache.sling.api.SlingHttpServletResponse
* org.apache.sling.api.request.RequestPathInfo
* org.apache.sling.api.resource.ResourceResolver
* org.apache.sling.api.servlets.SlingAllMethodsServlet
* org.apache.sling.commons.json.JSONException
* org.apache.sling.commons.json.io.JSONWriter
* org.slf4j.Logger
* org.slf4j.LoggerFactory
*/
package com.adobe.cq.screens.impl;
import com.adobe.cq.screens.DeviceMessageQueue;
import com.adobe.cq.screens.device.Device;
import com.adobe.cq.screens.device.DeviceConfig;
import com.adobe.cq.screens.device.DeviceManager;
import com.adobe.cq.screens.device.DeviceStatus;
import com.adobe.cq.screens.device.impl.DeviceService;
import com.adobe.cq.screens.impl.DeviceStatusWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import javax.servlet.ServletException;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.sling.SlingServlet;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.request.RequestPathInfo;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.commons.json.JSONException;
import org.apache.sling.commons.json.io.JSONWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SlingServlet(resourceTypes={"screens/core/components/service"}, methods={"GET", "POST"})
public class ScreensServiceServlet
extends SlingAllMethodsServlet {
private static final Logger log = LoggerFactory.getLogger(ScreensServiceServlet.class);
private static final String HEADER_SET_HEARTBEAT = "X-SET-HEARTBEAT";
private static final String HEADER_REQUEST_COMMAND = "X-REQUEST-COMMAND";
@Reference
private DeviceMessageQueue queue = null;
@Reference
private DeviceService deviceSvc = null;
protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException {
String[] selectors = request.getRequestPathInfo().getSelectors();
if (selectors.length == 1 && "ping".equals(selectors[0])) {
this.handlePing(request, response);
} else {
response.getWriter().write("ok");
}
}
private void handlePing(SlingHttpServletRequest request, SlingHttpServletResponse response) throws IOException {
String deviceId = request.getParameter("id");
if (deviceId == null) {
log.error("ping needs id parameter.");
response.sendError(500);
return;
}
ResourceResolver resolver = request.getResourceResolver();
DeviceManager dm = (DeviceManager)resolver.adaptTo(DeviceManager.class);
Device device = dm.getDevice(deviceId);
if (device == null) {
log.error("Unable to find device: {} for user {}", (Object)deviceId, (Object)request.getRemoteUser());
response.sendError(404);
return;
}
DeviceStatus status = dm.getDeviceStatus(deviceId);
if (status == null) {
log.error("Something went wrong. No device status for device {}", (Object)deviceId);
response.setStatus(404);
return;
}
DeviceConfig config = device.getDeviceConfig();
String version = request.getParameter("v");
if (version == null || version.length() == 0) {
version = "n/a";
}
long timestamp = -1;
try {
timestamp = Long.parseLong(request.getParameter("t"));
}
catch (NumberFormatException e) {
// empty catch block
}
this.deviceSvc.updateFirmwareVersion(resolver, device.getId(), version, timestamp);
String heartbeat = request.getHeader("X-SET-HEARTBEAT");
if (heartbeat != null) {
this.deviceSvc.updatePing(resolver, device.getId());
}
try {
response.setContentType("application/json");
DeviceStatusWriter w = new DeviceStatusWriter(resolver, new JSONWriter((Writer)response.getWriter()));
if (request.getHeader("X-REQUEST-COMMAND") != null) {
w.setMessageQueue(this.queue);
}
w.writeDevice(device, status, config);
}
catch (JSONException jex) {
log.error("Error creating JSON output for device", (Throwable)jex);
throw new IOException((Throwable)jex);
}
}
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException {
String deviceId = request.getParameter("id");
String cmd = request.getParameter("cmd");
if ("send".equals(cmd)) {
String msg = request.getParameter("msg");
if (msg == null) {
log.error("send command needs 'msg' parameter");
response.sendError(500);
return;
}
if (deviceId == null) {
log.error("send command needs 'id' parameter");
response.sendError(500);
return;
}
DeviceManager dm = (DeviceManager)request.getResourceResolver().adaptTo(DeviceManager.class);
Device device = dm.getDevice(deviceId);
if (device == null) {
log.error("send command failed. no such device: {}", (Object)deviceId);
response.sendError(500);
return;
}
this.queue.queue(device.getId(), msg);
JSONWriter w = new JSONWriter((Writer)response.getWriter());
response.setContentType("application/json");
try {
w.object();
w.key("success").value(true);
w.key("message").value((Object)"added message to device");
w.key("deviceId").value((Object)device.getId());
w.key("devicePath").value((Object)device.getPath());
w.endObject();
}
catch (JSONException e) {
log.error("Error creating JSON", (Throwable)e);
response.sendError(500);
}
} else {
log.error("invalid command: {}", (Object)cmd);
response.sendError(500);
}
}
protected void bindQueue(DeviceMessageQueue deviceMessageQueue) {
this.queue = deviceMessageQueue;
}
protected void unbindQueue(DeviceMessageQueue deviceMessageQueue) {
if (this.queue == deviceMessageQueue) {
this.queue = null;
}
}
protected void bindDeviceSvc(DeviceService deviceService) {
this.deviceSvc = deviceService;
}
protected void unbindDeviceSvc(DeviceService deviceService) {
if (this.deviceSvc == deviceService) {
this.deviceSvc = null;
}
}
}