[BWA-182] Add mTLS support for Glide image loading (#6125)

Co-authored-by: David Perez <david@livefront.com>

app/build.gradle.kts

@@ -260,6 +260,8 @@ dependencies {
     implementation(libs.androidx.work.runtime.ktx)
     implementation(libs.bitwarden.sdk)
     implementation(libs.bumptech.glide)
+    implementation(libs.bumptech.glide.okhttp)
+    ksp(libs.bumptech.glide.compiler)
     implementation(libs.google.hilt.android)
     ksp(libs.google.hilt.compiler)
     implementation(libs.kotlinx.collections.immutable)

app/src/main/kotlin/com/x8bit/bitwarden/ui/platform/glide/BitwardenAppGlideModule.kt

@@ -0,0 +1,59 @@
+package com.x8bit.bitwarden.ui.platform.glide
+
+import android.content.Context
+import com.bitwarden.network.ssl.createMtlsOkHttpClient
+import com.bumptech.glide.Glide
+import com.bumptech.glide.Registry
+import com.bumptech.glide.annotation.GlideModule
+import com.bumptech.glide.integration.okhttp3.OkHttpUrlLoader
+import com.bumptech.glide.load.model.GlideUrl
+import com.bumptech.glide.module.AppGlideModule
+import com.x8bit.bitwarden.data.platform.manager.CertificateManager
+import dagger.hilt.EntryPoint
+import dagger.hilt.InstallIn
+import dagger.hilt.android.EntryPointAccessors
+import dagger.hilt.components.SingletonComponent
+import java.io.InputStream
+
+/**
+ * Custom Glide module for the Bitwarden app that configures Glide to use an OkHttpClient
+ * with mTLS (mutual TLS) support.
+ *
+ * This ensures that all icon/image loading requests through Glide present the client certificate
+ * for mutual TLS authentication, allowing them to pass through Cloudflare's mTLS checks.
+ *
+ * The configuration mirrors the SSL setup used in RetrofitsImpl for API calls.
+ */
+@GlideModule
+class BitwardenAppGlideModule : AppGlideModule() {
+
+    /**
+     * Entry point to access Hilt-provided dependencies from non-Hilt managed classes.
+     */
+    @EntryPoint
+    @InstallIn(SingletonComponent::class)
+    interface BitwardenGlideEntryPoint {
+        /**
+         * Provides access to the [CertificateManager] for mTLS certificate management.
+         */
+        fun certificateManager(): CertificateManager
+    }
+
+    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
+        // Get CertificateManager from Hilt
+        val entryPoint = EntryPointAccessors.fromApplication(
+            context = context.applicationContext,
+            entryPoint = BitwardenGlideEntryPoint::class.java,
+        )
+        val certificateManager = entryPoint.certificateManager()
+
+        // Register OkHttpUrlLoader that uses our mTLS OkHttpClient
+        registry.replace(
+            GlideUrl::class.java,
+            InputStream::class.java,
+            OkHttpUrlLoader.Factory(certificateManager.createMtlsOkHttpClient()),
+        )
+    }
+
+    override fun isManifestParsingEnabled(): Boolean = false
+}

app/src/test/kotlin/com/x8bit/bitwarden/ui/platform/glide/BitwardenAppGlideModuleTest.kt

@@ -0,0 +1,47 @@
+package com.x8bit.bitwarden.ui.platform.glide
+
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+
+/**
+ * Test class for [BitwardenAppGlideModule] to verify mTLS configuration is properly applied
+ * to Glide without requiring a real mTLS server.
+ *
+ * These tests verify the module's structure and that it can be instantiated.
+ * Full integration testing requires running the app and checking logcat for
+ * "BitwardenGlide" logs when images are loaded.
+ */
+class BitwardenAppGlideModuleTest {
+
+    @Test
+    fun `BitwardenAppGlideModule should be instantiable`() {
+        // Verify the module can be created
+        val module = BitwardenAppGlideModule()
+
+        assertNotNull(module)
+    }
+
+    @Test
+    fun `BitwardenAppGlideModule should have EntryPoint interface for Hilt dependency injection`() {
+        // Verify the Hilt EntryPoint interface exists for accessing CertificateManager
+        val entryPointInterface = BitwardenAppGlideModule::class.java
+            .declaredClasses
+            .firstOrNull { it.simpleName == "BitwardenGlideEntryPoint" }
+
+        assertNotNull(entryPointInterface)
+    }
+
+    @Test
+    fun `BitwardenGlideEntryPoint should declare certificateManager method`() {
+        // Verify the EntryPoint has the required method to access CertificateManager
+        val entryPointInterface = BitwardenAppGlideModule::class.java
+            .declaredClasses
+            .firstOrNull { it.simpleName == "BitwardenGlideEntryPoint" }
+
+        val methods = requireNotNull(entryPointInterface).declaredMethods
+        val hasCertificateManagerMethod = methods.any { it.name == "certificateManager" }
+
+        assertTrue(hasCertificateManagerMethod)
+    }
+}