[Device Manager] Extend user agent to include device information (PSG-755)

changelog.d/7209.sdk

@@ -0,0 +1 @@
+[Device Manager] Extend user agent to include device information

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/network/ComputeUserAgentUseCase.kt

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2022 The Matrix.org Foundation C.I.C.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.matrix.android.sdk.internal.network
+
+import android.content.Context
+import android.os.Build
+import org.matrix.android.sdk.BuildConfig
+import org.matrix.android.sdk.api.extensions.tryOrNull
+import javax.inject.Inject
+
+class ComputeUserAgentUseCase @Inject constructor(
+        private val context: Context,
+) {
+
+    /**
+     * Create an user agent with the application version.
+     * Ex: Element/1.5.0 (Xiaomi Mi 9T; Android 11; RKQ1.200826.002; Flavour GooglePlay; MatrixAndroidSdk2 1.5.0)
+     *
+     * @param flavorDescription the flavor description
+     */
+    fun execute(flavorDescription: String): String {
+        val appPackageName = context.applicationContext.packageName
+        val pm = context.packageManager
+
+        val appName = tryOrNull { pm.getApplicationLabel(pm.getApplicationInfo(appPackageName, 0)).toString() }
+                ?.takeIf {
+                    it.matches("\\A\\p{ASCII}*\\z".toRegex())
+                }
+                ?: run {
+                    // Use appPackageName instead of appName if appName is null or contains any non-ASCII character
+                    appPackageName
+                }
+        val appVersion = tryOrNull { pm.getPackageInfo(context.applicationContext.packageName, 0).versionName } ?: FALLBACK_APP_VERSION
+
+        val deviceManufacturer = Build.MANUFACTURER
+        val deviceModel = Build.MODEL
+        val androidVersion = Build.VERSION.RELEASE
+        val deviceBuildId = Build.DISPLAY
+        val matrixSdkVersion = BuildConfig.SDK_VERSION
+
+        return buildString {
+            append(appName)
+            append("/")
+            append(appVersion)
+            append(" (")
+            append(deviceManufacturer)
+            append(" ")
+            append(deviceModel)
+            append("; ")
+            append("Android ")
+            append(androidVersion)
+            append("; ")
+            append(deviceBuildId)
+            append("; ")
+            append("Flavour ")
+            append(flavorDescription)
+            append("; ")
+            append("MatrixAndroidSdk2 ")
+            append(matrixSdkVersion)
+            append(")")
+        }
+    }
+
+    companion object {
+        const val FALLBACK_APP_VERSION = "0.0.0"
+    }
+}

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/network/UserAgentHolder.kt

@@ -16,73 +16,20 @@
 
 package org.matrix.android.sdk.internal.network
 
-import android.content.Context
-import org.matrix.android.sdk.BuildConfig
 import org.matrix.android.sdk.api.MatrixConfiguration
 import org.matrix.android.sdk.internal.di.MatrixScope
-import timber.log.Timber
 import javax.inject.Inject
 
 @MatrixScope
 internal class UserAgentHolder @Inject constructor(
-        private val context: Context,
-        matrixConfiguration: MatrixConfiguration
+        matrixConfiguration: MatrixConfiguration,
+        computeUserAgentUseCase: ComputeUserAgentUseCase,
 ) {
 
     var userAgent: String = ""
         private set
 
     init {
-        setApplicationFlavor(matrixConfiguration.applicationFlavor)
-    }
-
-    /**
-     * Create an user agent with the application version.
-     * Ex: Element/1.0.0 (Linux; U; Android 6.0.1; SM-A510F Build/MMB29; Flavour GPlay; MatrixAndroidSdk2 1.0)
-     *
-     * @param flavorDescription the flavor description
-     */
-    private fun setApplicationFlavor(flavorDescription: String) {
-        var appName = ""
-        var appVersion = ""
-
-        try {
-            val appPackageName = context.applicationContext.packageName
-            val pm = context.packageManager
-            val appInfo = pm.getApplicationInfo(appPackageName, 0)
-            appName = pm.getApplicationLabel(appInfo).toString()
-
-            val pkgInfo = pm.getPackageInfo(context.applicationContext.packageName, 0)
-            appVersion = pkgInfo.versionName ?: ""
-
-            // Use appPackageName instead of appName if appName contains any non-ASCII character
-            if (!appName.matches("\\A\\p{ASCII}*\\z".toRegex())) {
-                appName = appPackageName
-            }
-        } catch (e: Exception) {
-            Timber.e(e, "## initUserAgent() : failed")
-        }
-
-        val systemUserAgent = System.getProperty("http.agent")
-
-        // cannot retrieve the application version
-        if (appName.isEmpty() || appVersion.isEmpty()) {
-            if (null == systemUserAgent) {
-                userAgent = "Java" + System.getProperty("java.version")
-            }
-            return
-        }
-
-        // if there is no user agent or cannot parse it
-        if (null == systemUserAgent || systemUserAgent.lastIndexOf(")") == -1 || !systemUserAgent.contains("(")) {
-            userAgent = (appName + "/" + appVersion + " ( Flavour " + flavorDescription +
-                    "; MatrixAndroidSdk2 " + BuildConfig.SDK_VERSION + ")")
-        } else {
-            // update
-            userAgent = appName + "/" + appVersion + " " +
-                    systemUserAgent.substring(systemUserAgent.indexOf("("), systemUserAgent.lastIndexOf(")") - 1) +
-                    "; Flavour " + flavorDescription +
-                    "; MatrixAndroidSdk2 " + BuildConfig.SDK_VERSION + ")"
-        }
+        userAgent = computeUserAgentUseCase.execute(matrixConfiguration.applicationFlavor)
     }
 }

matrix-sdk-android/src/test/java/org/matrix/android/sdk/internal/network/ComputeUserAgentUseCaseTest.kt

@@ -0,0 +1,149 @@
+/*
+ * Copyright 2022 The Matrix.org Foundation C.I.C.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.matrix.android.sdk.internal.network
+
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import android.content.pm.PackageInfo
+import android.content.pm.PackageManager
+import android.os.Build
+import io.mockk.every
+import io.mockk.mockk
+import org.amshove.kluent.shouldBeEqualTo
+import org.junit.Before
+import org.junit.Test
+import org.matrix.android.sdk.BuildConfig
+import java.lang.Exception
+
+private const val A_PACKAGE_NAME = "org.matrix.sdk"
+private const val AN_APP_NAME = "Element"
+private const val A_NON_ASCII_APP_NAME = "Élement"
+private const val AN_APP_VERSION = "1.5.1"
+private const val A_FLAVOUR = "GooglePlay"
+
+class ComputeUserAgentUseCaseTest {
+
+    private val context = mockk<Context>()
+    private val packageManager = mockk<PackageManager>()
+    private val applicationInfo = mockk<ApplicationInfo>()
+    private val packageInfo = mockk<PackageInfo>()
+
+    private val computeUserAgentUseCase = ComputeUserAgentUseCase(context)
+
+    @Before
+    fun setUp() {
+        every { context.applicationContext } returns context
+        every { context.packageName } returns A_PACKAGE_NAME
+        every { context.packageManager } returns packageManager
+        every { packageManager.getApplicationInfo(any(), any()) } returns applicationInfo
+        every { packageManager.getPackageInfo(any<String>(), any()) } returns packageInfo
+    }
+
+    @Test
+    fun `given a non-null app name and app version when computing user agent then returns expected user agent`() {
+        // Given
+        givenAppName(AN_APP_NAME)
+        givenAppVersion(AN_APP_VERSION)
+
+        // When
+        val result = computeUserAgentUseCase.execute(A_FLAVOUR)
+
+        // Then
+        val expectedUserAgent = constructExpectedUserAgent(AN_APP_NAME, AN_APP_VERSION)
+        result shouldBeEqualTo expectedUserAgent
+    }
+
+    @Test
+    fun `given a null app name when computing user agent then returns user agent with package name instead of app name`() {
+        // Given
+        givenAppName(null)
+        givenAppVersion(AN_APP_VERSION)
+
+        // When
+        val result = computeUserAgentUseCase.execute(A_FLAVOUR)
+
+        // Then
+        val expectedUserAgent = constructExpectedUserAgent(A_PACKAGE_NAME, AN_APP_VERSION)
+        result shouldBeEqualTo expectedUserAgent
+    }
+
+    @Test
+    fun `given a non-ascii app name when computing user agent then returns user agent with package name instead of app name`() {
+        // Given
+        givenAppName(A_NON_ASCII_APP_NAME)
+        givenAppVersion(AN_APP_VERSION)
+
+        // When
+        val result = computeUserAgentUseCase.execute(A_FLAVOUR)
+
+        // Then
+        val expectedUserAgent = constructExpectedUserAgent(A_PACKAGE_NAME, AN_APP_VERSION)
+        result shouldBeEqualTo expectedUserAgent
+    }
+
+    @Test
+    fun `given a null app version when computing user agent then returns user agent with a fallback app version`() {
+        // Given
+        givenAppName(AN_APP_NAME)
+        givenAppVersion(null)
+
+        // When
+        val result = computeUserAgentUseCase.execute(A_FLAVOUR)
+
+        // Then
+        val expectedUserAgent = constructExpectedUserAgent(AN_APP_NAME, ComputeUserAgentUseCase.FALLBACK_APP_VERSION)
+        result shouldBeEqualTo expectedUserAgent
+    }
+
+    private fun constructExpectedUserAgent(appName: String, appVersion: String): String {
+        return buildString {
+            append(appName)
+            append("/")
+            append(appVersion)
+            append(" (")
+            append(Build.MANUFACTURER)
+            append(" ")
+            append(Build.MODEL)
+            append("; ")
+            append("Android ")
+            append(Build.VERSION.RELEASE)
+            append("; ")
+            append(Build.DISPLAY)
+            append("; ")
+            append("Flavour ")
+            append(A_FLAVOUR)
+            append("; ")
+            append("MatrixAndroidSdk2 ")
+            append(BuildConfig.SDK_VERSION)
+            append(")")
+        }
+    }
+
+    private fun givenAppName(deviceName: String?) {
+        if (deviceName == null) {
+            every { packageManager.getApplicationLabel(any()) } throws Exception("Cannot retrieve application name")
+        } else if (!deviceName.matches("\\A\\p{ASCII}*\\z".toRegex())) {
+            every { packageManager.getApplicationLabel(any()) } returns A_PACKAGE_NAME
+        } else {
+            every { packageManager.getApplicationLabel(any()) } returns deviceName
+        }
+    }
+
+    private fun givenAppVersion(appVersion: String?) {
+        packageInfo.versionName = appVersion
+    }
+}