For #1192: Adds telemetry for Mozilla products (#1953)

app/metrics.yaml

@@ -330,6 +330,34 @@ metrics:
     notification_emails:
     - [email protected]
     expires: "2019-09-01"
+  mozilla_products:
+    type: string_list
+    description: >
+     A list of all the Mozilla products installed on device. We currently scan for: Firefox, Firefox Beta,
+      Firefox Aurora, Firefox Nightly, Firefox Fdroid, Firefox Lite, Reference Browser, Reference Browser Debug,
+      Fenix, Focus, and Lockbox.
+    send_in_pings:
+    - metrics
+    bugs:
+    - 1192
+    data_reviews:
+    - https://github.com/mozilla-mobile/fenix/pull/1953/
+    notification_emails:
+    - [email protected]
+    expires: "2019-09-01"
+  default_moz_browser:
+    type: string
+    description: >
+      The name of the default browser on device if and only if it's a Mozilla owned product, otherwise empty string
+    send_in_pings:
+    - metrics
+    bugs:
+    - 1192
+    data_reviews:
+    - https://github.com/mozilla-mobile/fenix/pull/1953/
+    notification_emails:
+    - [email protected]
+    expires: "2019-09-01"
 
 search.default_engine:
   code:

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -166,6 +166,8 @@ class GleanMetricsService(private val context: Context) : MetricsService {
 
         Metrics.apply {
             defaultBrowser.set(Browsers.all(context).isDefaultBrowser)
+            defaultMozBrowser.set(MozillaProductDetector.getMozillaBrowserDefault(context) ?: "")
+            mozillaProducts.set(MozillaProductDetector.getInstalledMozillaProducts(context))
         }
 
         SearchDefaultEngine.apply {

app/src/main/java/org/mozilla/fenix/components/metrics/MozillaProductDetector.kt

@@ -0,0 +1,70 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+package org.mozilla.fenix.components.metrics
+
+import android.content.Context
+import android.content.pm.PackageManager
+import mozilla.components.support.utils.Browsers
+
+object MozillaProductDetector {
+    enum class MozillaProducts(val productName: String) {
+        // Browsers
+        FIREFOX("org.mozilla.firefox"),
+        FIREFOX_BETA("org.mozilla.firefox_beta"),
+        FIREFOX_AURORA("org.mozilla.fennec_aurora"),
+        FIREFOX_NIGHTLY("org.mozilla.fennec"),
+        FIREFOX_FDROID("org.mozilla.fennec_fdroid"),
+        FIREFOX_LITE("org.mozilla.rocket"),
+        REFERENCE_BROWSER("org.mozilla.reference.browser"),
+        REFERENCE_BROWSER_DEBUG("org.mozilla.reference.browser.debug"),
+        FENIX("org.mozilla.fenix"),
+        FOCUS("org.mozilla.focus"),
+
+        // Other products
+        LOCKBOX("org.mozilla.lockbox")
+    }
+
+    fun getInstalledMozillaProducts(context: Context): List<String> {
+        val mozillaProducts = mutableListOf<String>()
+
+        for (product in MozillaProducts.values()) {
+            if (packageIsInstalled(context, product.productName)) { mozillaProducts.add(product.productName) }
+        }
+
+        getMozillaBrowserDefault(context)?.let {
+            if (!mozillaProducts.contains(it)) {
+                mozillaProducts.add(it)
+            }
+        }
+
+        return mozillaProducts
+    }
+
+    private fun packageIsInstalled(context: Context, packageName: String): Boolean {
+        try {
+            context.packageManager.getPackageInfo(packageName, 0)
+        } catch (e: PackageManager.NameNotFoundException) {
+            return false
+        }
+
+        return true
+    }
+
+    // Returns the default browser if and only if it is a Mozilla product
+    fun getMozillaBrowserDefault(context: Context): String? {
+        val browserPackageName = Browsers.all(context).defaultBrowser?.packageName
+        return if (isMozillaProduct(browserPackageName ?: "")) { browserPackageName } else { null }
+    }
+
+    // Note: we intentionally do not use a-c `firefoxBrandedBrowser` as this only gives us the first from that list
+    private fun isMozillaProduct(packageName: String): Boolean {
+        for (product in MozillaProducts.values()) {
+            if (product.productName == packageName) {
+                return true
+            }
+        }
+
+        return false
+    }
+}