feat(analytics): add Matomo support

Makefile

@@ -46,6 +46,8 @@ deploy-appbundle:
 		$(OUTPUT_DIR)/analytics-ga.js \
 		$(BUILD_DIR)/analytics-ga.min.js \
 		$(BUILD_DIR)/analytics-ga.min.map \
+		$(BUILD_DIR)/analytics-matomo.min.js \
+		$(BUILD_DIR)/analytics-matomo.min.map \
 		$(BUILD_DIR)/video-blur-effect.min.js \
 		$(BUILD_DIR)/video-blur-effect.min.map \
 		$(BUILD_DIR)/rnnoise-processor.min.js \

config.js

@@ -371,13 +371,18 @@ var config = {
         // The Google Analytics Tracking ID:
         // googleAnalyticsTrackingId: 'your-tracking-id-UA-123456-1'
 
+        // Matomo configuration:
+        // matomoEndpoint: 'https://your-matomo-endpoint/',
+        // matomoSiteID: '42',
+
         // The Amplitude APP Key:
         // amplitudeAPPKey: '<APP_KEY>'
 
         // Array of script URLs to load as lib-jitsi-meet "analytics handlers".
         // scriptURLs: [
-        //      "libs/analytics-ga.min.js", // google-analytics
-        //      "https://example.com/my-custom-analytics.js"
+        //     "libs/analytics-ga.min.js",     // google-analytics
+        //     "libs/analytics-matomo.min.js", // Matomo
+        //     "https://example.com/my-custom-analytics.js"
         // ],
     },
 

react/features/analytics/functions.js

@@ -65,6 +65,8 @@ export function createHandlers({ getState }: { getState: Function }) {
         blackListedEvents,
         scriptURLs,
         googleAnalyticsTrackingId,
+        matomoEndpoint,
+        matomoSiteID,
         whiteListedEvents
     } = analyticsConfig;
     const { group, user } = state['features/base/jwt'];
@@ -73,6 +75,8 @@ export function createHandlers({ getState }: { getState: Function }) {
         blackListedEvents,
         envType: (deploymentInfo && deploymentInfo.envType) || 'dev',
         googleAnalyticsTrackingId,
+        matomoEndpoint,
+        matomoSiteID,
         group,
         host,
         product: deploymentInfo && deploymentInfo.product,
@@ -95,7 +99,7 @@ export function createHandlers({ getState }: { getState: Function }) {
             .then(externalHandlers => {
                 handlers.push(...externalHandlers);
                 if (handlers.length === 0) {
-                    // Throwing an error in  order to dispose the analytics in the catch clause due to the lack of any
+                    // Throwing an error in order to dispose the analytics in the catch clause due to the lack of any
                     // analytics handlers.
                     throw new Error('No analytics handlers created!');
                 }

react/features/analytics/handlers/MatomoHandler.js

@@ -0,0 +1,163 @@
+/* global _paq */
+
+import { getJitsiMeetGlobalNS } from '../../base/util';
+
+import AbstractHandler from './AbstractHandler';
+
+/**
+ * Analytics handler for Matomo.
+ */
+class MatomoHandler extends AbstractHandler {
+
+    /**
+     * Creates new instance of the Matomo handler.
+     *
+     * @param {Object} options -
+     * @param {string} options.matomoEndpoint - The Matomo endpoint.
+     * @param {string} options.matomoSiteID   - The site ID.
+     */
+    constructor(options) {
+        super(options);
+        this._userProperties = {};
+
+        if (!options.matomoEndpoint) {
+            throw new Error(
+                'Failed to initialize Matomo handler: no endpoint defined.'
+            );
+        }
+        if (!options.matomoSiteID) {
+            throw new Error(
+                'Failed to initialize Matomo handler: no site ID defined.'
+            );
+        }
+
+        this._enabled = true;
+        this._initMatomo(options);
+    }
+
+    /**
+     * Initializes the _paq object.
+     *
+     * @param {Object} options -
+     * @param {string} options.matomoEndpoint - The Matomo endpoint.
+     * @param {string} options.matomoSiteID   - The site ID.
+     * @returns {void}
+     */
+    _initMatomo(options) {
+        const _paq = window._paq || [];
+
+        window._paq = _paq;
+
+        _paq.push([ 'trackPageView' ]);
+        _paq.push([ 'enableLinkTracking' ]);
+
+        (function() {
+            // add trailing slash if needed
+            const u = options.matomoEndpoint.endsWith('/')
+                ? options.matomoEndpoint
+                : `${options.matomoEndpoint}/`;
+
+            // configure the tracker
+            _paq.push([ 'setTrackerUrl', `${u}matomo.php` ]);
+            _paq.push([ 'setSiteId', options.matomoSiteID ]);
+
+            // insert the matomo script
+            const d = document,
+                g = d.createElement('script'),
+                s = d.getElementsByTagName('script')[0];
+
+            g.type = 'text/javascript';
+            g.async = true;
+            g.defer = true;
+            g.src = `${u}matomo.js`;
+            s.parentNode.insertBefore(g, s);
+        })();
+    }
+
+    /**
+     * Extracts the integer to use for a Matomo event's value field
+     * from a lib-jitsi-meet analytics event.
+     *
+     * @param {Object} event - The lib-jitsi-meet analytics event.
+     * @returns {number} - The integer to use for the 'value' of a Matomo
+     * event, or NaN if the lib-jitsi-meet event doesn't contain a
+     * suitable value.
+     * @private
+     */
+    _extractValue(event) {
+        const value = event && event.attributes && event.attributes.value;
+
+        // Try to extract an integer from the 'value' attribute.
+        return Math.round(parseFloat(value));
+    }
+
+    /**
+     * Sets the permanent properties for the current session.
+     *
+     * @param {Object} userProps - The permanent properties.
+     * @returns {void}
+     */
+    setUserProperties(userProps = {}) {
+        if (!this._enabled) {
+            return;
+        }
+
+        const visitScope = [ 'user_agent', 'callstats_name', 'browser_name' ];
+
+        // add variables in the 'page' scope
+        Object.keys(userProps)
+            .filter(key => visitScope.indexOf(key) === -1)
+            .forEach((key, index) => {
+                _paq.push([
+                    'setCustomVariable',
+                    1 + index,
+                    key,
+                    userProps[key],
+                    'page'
+                ]);
+            });
+
+
+        // add variables in the 'visit' scope
+        Object.keys(userProps)
+            .filter(key => visitScope.indexOf(key) !== -1)
+            .forEach((key, index) => {
+                _paq.push([
+                    'setCustomVariable',
+                    1 + index,
+                    key,
+                    userProps[key],
+                    'visit'
+                ]);
+            });
+    }
+
+    /**
+     * This is the entry point of the API. The function sends an event to
+     * the Matomo endpoint. The format of the event is described in
+     * analyticsAdapter in lib-jitsi-meet.
+     *
+     * @param {Object} event - The event in the format specified by
+     * lib-jitsi-meet.
+     * @returns {void}
+     */
+    sendEvent(event) {
+        if (this._shouldIgnore(event)) {
+            return;
+        }
+
+        const value = this._extractValue(event);
+        const matomoEvent = [ 'trackEvent', 'jitsi-meet', this._extractName(event) ];
+
+        if (!isNaN(value)) {
+            matomoEvent.push(value);
+        }
+
+        _paq.push(matomoEvent);
+    }
+}
+
+const globalNS = getJitsiMeetGlobalNS();
+
+globalNS.analyticsHandlers = globalNS.analyticsHandlers || [];
+globalNS.analyticsHandlers.push(MatomoHandler);

webpack.config.js

@@ -217,6 +217,12 @@ module.exports = [
         },
         performance: getPerformanceHints(5 * 1024)
     }),
+    Object.assign({}, config, {
+        entry: {
+            'analytics-matomo': './react/features/analytics/handlers/MatomoHandler.js'
+        },
+        performance: getPerformanceHints(5 * 1024)
+    }),
 
     // Because both video-blur-effect and rnnoise-processor modules are loaded
     // in a lazy manner using the loadScript function with a hard coded name,