google analytics support

src/main/java/com/commafeed/backend/model/ApplicationSettings.java

@@ -19,6 +19,10 @@ public class ApplicationSettings extends AbstractModel {
 	 * Wether registrations are open
 	 */
 	private boolean allowRegistrations = false;
+
+	private String googleAnalyticsTrackingCode;
+	private String googleAnalyticsDomainName;
+
 	private String googleClientId;
 	private String googleClientSecret;
 	private int backgroundThreads = 3;
@@ -109,4 +113,21 @@ public class ApplicationSettings extends AbstractModel {
 		this.smtpPassword = smtpPassword;
 	}
 
+	public String getGoogleAnalyticsTrackingCode() {
+		return googleAnalyticsTrackingCode;
+	}
+
+	public void setGoogleAnalyticsTrackingCode(
+			String googleAnalyticsTrackingCode) {
+		this.googleAnalyticsTrackingCode = googleAnalyticsTrackingCode;
+	}
+
+	public String getGoogleAnalyticsDomainName() {
+		return googleAnalyticsDomainName;
+	}
+
+	public void setGoogleAnalyticsDomainName(String googleAnalyticsDomainName) {
+		this.googleAnalyticsDomainName = googleAnalyticsDomainName;
+	}
+
 }

src/main/java/com/commafeed/frontend/pages/BasePage.java

@@ -1,10 +1,16 @@
 package com.commafeed.frontend.pages;
 
+import java.util.Map;
+
 import javax.inject.Inject;
 
+import org.apache.commons.lang.StringUtils;
 import org.apache.wicket.markup.head.IHeaderResponse;
+import org.apache.wicket.markup.head.JavaScriptHeaderItem;
 import org.apache.wicket.markup.head.filter.HeaderResponseContainer;
 import org.apache.wicket.markup.html.WebPage;
+import org.apache.wicket.model.Model;
+import org.apache.wicket.resource.TextTemplateResourceReference;
 
 import com.commafeed.backend.dao.FeedCategoryDAO;
 import com.commafeed.backend.dao.FeedDAO;
@@ -14,7 +20,10 @@ import com.commafeed.backend.dao.FeedSubscriptionDAO;
 import com.commafeed.backend.dao.UserDAO;
 import com.commafeed.backend.dao.UserRoleDAO;
 import com.commafeed.backend.dao.UserSettingsDAO;
+import com.commafeed.backend.model.ApplicationSettings;
+import com.commafeed.backend.services.ApplicationSettingsService;
 import com.commafeed.frontend.references.bootstrap.BootstrapReference;
+import com.google.api.client.util.Maps;
 
 @SuppressWarnings("serial")
 public abstract class BasePage extends WebPage {
@@ -43,6 +52,9 @@ public abstract class BasePage extends WebPage {
 	@Inject
 	protected UserRoleDAO userRoleDAO;
 
+	@Inject
+	ApplicationSettingsService applicationSettingsService;
+
 	public BasePage() {
 		add(new HeaderResponseContainer("footer-container", "footer-container"));
 	}
@@ -51,5 +63,16 @@ public abstract class BasePage extends WebPage {
 	public void renderHead(IHeaderResponse response) {
 		super.renderHead(response);
 		BootstrapReference.renderHead(response);
+
+		final ApplicationSettings settings = applicationSettingsService.get();
+		if (StringUtils.isNotBlank(settings.getGoogleAnalyticsTrackingCode())) {
+			Map<String, Object> vars = Maps.newHashMap();
+			vars.put("trackingCode", settings.getGoogleAnalyticsTrackingCode());
+			vars.put("domainName", settings.getGoogleAnalyticsDomainName());
+			response.render(JavaScriptHeaderItem
+					.forReference(new TextTemplateResourceReference(
+							BasePage.class, "analytics.js", Model.ofMap(vars))));
+
+		}
 	}
 }

src/main/java/com/commafeed/frontend/pages/HomePage.java

@@ -1,13 +1,10 @@
 package com.commafeed.frontend.pages;
 
-import javax.inject.Inject;
-
 import org.apache.wicket.markup.head.CssHeaderItem;
 import org.apache.wicket.markup.head.IHeaderResponse;
 import org.apache.wicket.markup.head.JavaScriptHeaderItem;
 import org.apache.wicket.request.mapper.parameter.PageParameters;
 
-import com.commafeed.backend.dao.UserSettingsDAO;
 import com.commafeed.backend.model.UserRole.Role;
 import com.commafeed.backend.model.UserSettings;
 import com.commafeed.frontend.CommaFeedSession;
@@ -30,9 +27,6 @@ import com.commafeed.frontend.references.spinjs.SpinJSReference;
 @SecurityCheck(Role.USER)
 public class HomePage extends BasePage {
 
-	@Inject
-	UserSettingsDAO userSettingsDAO;
-
 	@Override
 	public void renderHead(IHeaderResponse response) {
 		super.renderHead(response);

src/main/java/com/commafeed/frontend/pages/analytics.js

@@ -0,0 +1,13 @@
+(function(i, s, o, g, r, a, m) {
+	i['GoogleAnalyticsObject'] = r;
+	i[r] = i[r] || function() {
+		(i[r].q = i[r].q || []).push(arguments)
+	}, i[r].l = 1 * new Date();
+	a = s.createElement(o), m = s.getElementsByTagName(o)[0];
+	a.async = 1;
+	a.src = g;
+	m.parentNode.insertBefore(a, m)
+})(window, document, 'script', '//www.google-analytics.com/analytics.js', 'ga');
+
+ga('create', '${trackingCode}', '${domainName}');
+ga('send', 'pageview');