Extract code to retrieve .well-known files to its own modules.

features/login/impl/build.gradle.kts

@@ -36,7 +36,6 @@ dependencies {
     implementation(projects.libraries.featureflag.api)
     implementation(projects.libraries.matrix.api)
     implementation(projects.libraries.matrix.api)
-    implementation(projects.libraries.network)
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.testtags)
     implementation(projects.libraries.uiStrings)
@@ -44,10 +43,9 @@ dependencies {
     implementation(projects.libraries.qrcode)
     implementation(projects.libraries.oidc.api)
     implementation(projects.libraries.uiUtils)
+    implementation(projects.libraries.wellknown.api)
     implementation(libs.androidx.browser)
-    implementation(platform(libs.network.retrofit.bom))
     implementation(libs.androidx.webkit)
-    implementation(libs.network.retrofit)
     implementation(libs.serialization.json)
     api(projects.features.login.api)
 
@@ -65,6 +63,7 @@ dependencies {
     testImplementation(projects.libraries.matrix.test)
     testImplementation(projects.libraries.oidc.test)
     testImplementation(projects.libraries.permissions.test)
+    testImplementation(projects.libraries.wellknown.test)
     testImplementation(projects.tests.testutils)
     testReleaseImplementation(libs.androidx.compose.ui.test.manifest)
 }

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accesscontrol/DefaultAccountProviderAccessControl.kt

@@ -13,12 +13,13 @@ import io.element.android.features.login.api.accesscontrol.AccountProviderAccess
 import io.element.android.features.login.impl.changeserver.AccountProviderAccessException
 import io.element.android.libraries.core.uri.ensureProtocol
 import io.element.android.libraries.di.AppScope
+import io.element.android.libraries.wellknown.api.WellknownRetriever
 import javax.inject.Inject
 
 @ContributesBinding(AppScope::class)
 class DefaultAccountProviderAccessControl @Inject constructor(
     private val enterpriseService: EnterpriseService,
-    private val elementWellknownRetriever: ElementWellknownRetriever,
+    private val wellknownRetriever: WellknownRetriever,
 ) : AccountProviderAccessControl {
     override suspend fun isAllowedToConnectToAccountProvider(accountProviderUrl: String) = try {
         assertIsAllowedToConnectToAccountProvider(
@@ -37,8 +38,8 @@ class DefaultAccountProviderAccessControl @Inject constructor(
     ) {
         if (enterpriseService.isEnterpriseBuild.not()) {
             // Ensure that Element Pro is not required for this account provider
-            val wellKnown = elementWellknownRetriever.retrieve(
-                accountProviderUrl = accountProviderUrl.ensureProtocol(),
+            val wellKnown = wellknownRetriever.getElementWellKnown(
+                baseUrl = accountProviderUrl.ensureProtocol(),
             )
             if (wellKnown?.enforceElementPro == true) {
                 throw AccountProviderAccessException.NeedElementProException(

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accesscontrol/ElementWellknownRetriever.kt

@@ -1,42 +0,0 @@
-/*
- * Copyright 2025 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
- * Please see LICENSE files in the repository root for full details.
- */
-
-package io.element.android.features.login.impl.accesscontrol
-
-import com.squareup.anvil.annotations.ContributesBinding
-import io.element.android.features.login.impl.resolver.network.ElementWellKnown
-import io.element.android.features.login.impl.resolver.network.WellknownAPI
-import io.element.android.libraries.di.AppScope
-import io.element.android.libraries.network.RetrofitFactory
-import timber.log.Timber
-import javax.inject.Inject
-
-interface ElementWellknownRetriever {
-    suspend fun retrieve(accountProviderUrl: String): ElementWellKnown?
-}
-
-@ContributesBinding(AppScope::class)
-class DefaultElementWellknownRetriever @Inject constructor(
-    private val retrofitFactory: RetrofitFactory,
-) : ElementWellknownRetriever {
-    override suspend fun retrieve(accountProviderUrl: String): ElementWellKnown? {
-        val wellknownApi = try {
-            retrofitFactory.create(accountProviderUrl)
-                .create(WellknownAPI::class.java)
-        } catch (e: Exception) {
-            // If the base URL is not valid, we cannot retrieve the well-known data
-            Timber.e(e, "Failed to create Retrofit instance for $accountProviderUrl")
-            return null
-        }
-        return try {
-            wellknownApi.getElementWellKnown()
-        } catch (e: Exception) {
-            Timber.e(e, "Failed to retrieve Element well-known data for $accountProviderUrl")
-            null
-        }
-    }
-}

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/resolver/HomeserverResolver.kt

@@ -7,13 +7,14 @@
 
 package io.element.android.features.login.impl.resolver
 
-import io.element.android.features.login.impl.resolver.network.WellknownRequest
 import io.element.android.libraries.core.bool.orFalse
 import io.element.android.libraries.core.coroutine.CoroutineDispatchers
 import io.element.android.libraries.core.coroutine.parallelMap
 import io.element.android.libraries.core.data.tryOrNull
 import io.element.android.libraries.core.uri.ensureProtocol
 import io.element.android.libraries.core.uri.isValidUrl
+import io.element.android.libraries.wellknown.api.WellKnown
+import io.element.android.libraries.wellknown.api.WellknownRetriever
 import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
@@ -27,7 +28,7 @@ import javax.inject.Inject
  */
 class HomeserverResolver @Inject constructor(
     private val dispatchers: CoroutineDispatchers,
-    private val wellknownRequest: WellknownRequest,
+    private val wellknownRetriever: WellknownRetriever,
 ) {
     fun resolve(userInput: String): Flow<List<HomeserverData>> = flow {
         val flowContext = currentCoroutineContext()
@@ -41,7 +42,7 @@ class HomeserverResolver @Inject constructor(
             list.parallelMap { url ->
                 val wellKnown = tryOrNull {
                     withTimeout(5000) {
-                        wellknownRequest.execute(url)
+                        wellknownRetriever.getWellKnown(url)
                     }
                 }
                 val isValid = wellKnown?.isValid().orFalse()
@@ -86,3 +87,7 @@ class HomeserverResolver @Inject constructor(
         }
     }
 }
+
+private fun WellKnown.isValid(): Boolean {
+    return homeServer?.baseURL?.isNotBlank().orFalse()
+}

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/resolver/network/DefaultWellknownRequest.kt

@@ -1,27 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
- * Please see LICENSE files in the repository root for full details.
- */
-package io.element.android.features.login.impl.resolver.network
-
-import com.squareup.anvil.annotations.ContributesBinding
-import io.element.android.libraries.di.AppScope
-import io.element.android.libraries.network.RetrofitFactory
-import javax.inject.Inject
-
-@ContributesBinding(AppScope::class)
-class DefaultWellknownRequest @Inject constructor(
-    private val retrofitFactory: RetrofitFactory,
-) : WellknownRequest {
-    /**
-     * Return the WellKnown data, if found.
-     * @param baseUrl for instance https://matrix.org
-     */
-    override suspend fun execute(baseUrl: String): WellKnown {
-        val wellknownApi = retrofitFactory.create(baseUrl)
-            .create(WellknownAPI::class.java)
-        return wellknownApi.getWellKnown()
-    }
-}

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/resolver/network/WellknownRequest.kt

@@ -1,15 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
- * Please see LICENSE files in the repository root for full details.
- */
-package io.element.android.features.login.impl.resolver.network
-
-interface WellknownRequest {
-    /**
-     * Return the WellKnown data, or throw an error if not found.
-     * @param baseUrl for instance https://matrix.org
-     */
-    suspend fun execute(baseUrl: String): WellKnown
-}

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/web/WebClientUrlForAuthenticationRetriever.kt

@@ -10,12 +10,10 @@ package io.element.android.features.login.impl.web
 import androidx.core.net.toUri
 import com.squareup.anvil.annotations.ContributesBinding
 import io.element.android.appconfig.AuthenticationConfig
-import io.element.android.features.login.impl.resolver.network.WellknownAPI
 import io.element.android.features.login.impl.screens.createaccount.AccountCreationNotSupported
 import io.element.android.libraries.di.AppScope
-import io.element.android.libraries.network.RetrofitFactory
+import io.element.android.libraries.wellknown.api.WellknownRetriever
 import timber.log.Timber
-import java.net.HttpURLConnection
 import javax.inject.Inject
 
 interface WebClientUrlForAuthenticationRetriever {
@@ -24,24 +22,16 @@ interface WebClientUrlForAuthenticationRetriever {
 
 @ContributesBinding(AppScope::class)
 class DefaultWebClientUrlForAuthenticationRetriever @Inject constructor(
-    private val retrofitFactory: RetrofitFactory,
+    private val wellknownRetriever: WellknownRetriever,
 ) : WebClientUrlForAuthenticationRetriever {
     override suspend fun retrieve(homeServerUrl: String): String {
         if (homeServerUrl != AuthenticationConfig.MATRIX_ORG_URL) {
             Timber.w("Temporary account creation flow is only supported on matrix.org")
             throw AccountCreationNotSupported()
         }
-        val wellknownApi = retrofitFactory.create(homeServerUrl)
-            .create(WellknownAPI::class.java)
-        val result = try {
-            wellknownApi.getElementWellKnown()
-        } catch (e: retrofit2.HttpException) {
-            throw when {
-                e.code() == HttpURLConnection.HTTP_NOT_FOUND -> AccountCreationNotSupported()
-                else -> e
-            }
-        }
-        val registrationHelperUrl = result.registrationHelperUrl
+        val wellknown = wellknownRetriever.getElementWellKnown(homeServerUrl)
+            ?: throw AccountCreationNotSupported()
+        val registrationHelperUrl = wellknown.registrationHelperUrl
         return if (registrationHelperUrl != null) {
             registrationHelperUrl.toUri()
                 .buildUpon()

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/accesscontrol/DefaultAccountProviderAccessControlTest.kt

@@ -10,10 +10,11 @@ package io.element.android.features.login.impl.accesscontrol
 import com.google.common.truth.Truth.assertThat
 import io.element.android.features.enterprise.test.FakeEnterpriseService
 import io.element.android.features.login.impl.changeserver.AccountProviderAccessException
-import io.element.android.features.login.impl.resolver.network.ElementWellKnown
+import io.element.android.features.wellknown.test.FakeWellknownRetriever
 import io.element.android.libraries.matrix.test.AN_ACCOUNT_PROVIDER
 import io.element.android.libraries.matrix.test.AN_ACCOUNT_PROVIDER_2
 import io.element.android.libraries.matrix.test.AN_ACCOUNT_PROVIDER_URL
+import io.element.android.libraries.wellknown.api.ElementWellKnown
 import kotlinx.coroutines.test.runTest
 import org.junit.Assert.assertThrows
 import org.junit.Test
@@ -152,8 +153,8 @@ class DefaultAccountProviderAccessControlTest {
             isAllowedToConnectToHomeserverResult = { isAllowedToConnectToHomeserver },
             defaultHomeserverListResult = { allowedAccountProviders },
         ),
-        elementWellknownRetriever = FakeElementWellknownRetriever(
-            retrieveResult = { elementWellKnown }
+        wellknownRetriever = FakeWellknownRetriever(
+            getElementWellKnownResult = { elementWellKnown },
         ),
     )
 

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/accesscontrol/FakeElementWellknownRetriever.kt

@@ -1,19 +0,0 @@
-/*
- * Copyright 2025 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
- * Please see LICENSE files in the repository root for full details.
- */
-
-package io.element.android.features.login.impl.accesscontrol
-
-import io.element.android.features.login.impl.resolver.network.ElementWellKnown
-import io.element.android.tests.testutils.simulateLongTask
-
-class FakeElementWellknownRetriever(
-    private val retrieveResult: (String) -> ElementWellKnown? = { null },
-) : ElementWellknownRetriever {
-    override suspend fun retrieve(accountProviderUrl: String): ElementWellKnown? = simulateLongTask {
-        retrieveResult(accountProviderUrl)
-    }
-}

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/changeserver/ChangeServerPresenterTest.kt

@@ -11,17 +11,17 @@ import com.google.common.truth.Truth.assertThat
 import io.element.android.features.enterprise.api.EnterpriseService
 import io.element.android.features.enterprise.test.FakeEnterpriseService
 import io.element.android.features.login.impl.accesscontrol.DefaultAccountProviderAccessControl
-import io.element.android.features.login.impl.accesscontrol.ElementWellknownRetriever
-import io.element.android.features.login.impl.accesscontrol.FakeElementWellknownRetriever
 import io.element.android.features.login.impl.accountprovider.AccountProvider
 import io.element.android.features.login.impl.accountprovider.AccountProviderDataSource
 import io.element.android.features.login.impl.error.ChangeServerError
-import io.element.android.features.login.impl.resolver.network.ElementWellKnown
+import io.element.android.features.wellknown.test.FakeWellknownRetriever
 import io.element.android.libraries.architecture.AsyncData
 import io.element.android.libraries.core.uri.ensureProtocol
 import io.element.android.libraries.matrix.test.A_HOMESERVER
 import io.element.android.libraries.matrix.test.A_HOMESERVER_URL
 import io.element.android.libraries.matrix.test.auth.FakeMatrixAuthenticationService
+import io.element.android.libraries.wellknown.api.ElementWellKnown
+import io.element.android.libraries.wellknown.api.WellknownRetriever
 import io.element.android.tests.testutils.WarmUpRule
 import io.element.android.tests.testutils.lambda.lambdaRecorder
 import io.element.android.tests.testutils.lambda.value
@@ -113,14 +113,14 @@ class ChangeServerPresenterTest {
 
     @Test
     fun `present - change server element pro required error`() = runTest {
-        val retrieveResult = lambdaRecorder<String, ElementWellKnown> {
+        val getElementWellKnownResult = lambdaRecorder<String, ElementWellKnown> {
             ElementWellKnown(
                 enforceElementPro = true,
             )
         }
         createPresenter(
-            elementWellknownRetriever = FakeElementWellknownRetriever(
-                retrieveResult = retrieveResult,
+            wellknownRetriever = FakeWellknownRetriever(
+                getElementWellKnownResult = getElementWellKnownResult,
             ),
         ).test {
             val initialState = awaitItem()
@@ -136,7 +136,7 @@ class ChangeServerPresenterTest {
             assertThat(
                 (failureState.changeServerAction.errorOrNull() as ChangeServerError.NeedElementPro).applicationId
             ).isEqualTo("io.element.enterprise")
-            retrieveResult.assertions()
+            getElementWellKnownResult.assertions()
                 .isCalledOnce()
                 .with(value(A_HOMESERVER_URL.ensureProtocol()))
         }
@@ -146,13 +146,13 @@ class ChangeServerPresenterTest {
         authenticationService: FakeMatrixAuthenticationService = FakeMatrixAuthenticationService(),
         accountProviderDataSource: AccountProviderDataSource = AccountProviderDataSource(FakeEnterpriseService()),
         enterpriseService: EnterpriseService = FakeEnterpriseService(),
-        elementWellknownRetriever: ElementWellknownRetriever = FakeElementWellknownRetriever(),
+        wellknownRetriever: WellknownRetriever = FakeWellknownRetriever(),
     ) = ChangeServerPresenter(
         authenticationService = authenticationService,
         accountProviderDataSource = accountProviderDataSource,
         defaultAccountProviderAccessControl = DefaultAccountProviderAccessControl(
             enterpriseService = enterpriseService,
-            elementWellknownRetriever = elementWellknownRetriever,
+            wellknownRetriever = wellknownRetriever,
         ),
     )
 }

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/resolver/network/FakeWellknownRequest.kt

@@ -1,19 +0,0 @@
-/*
- * Copyright 2023, 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
- * Please see LICENSE files in the repository root for full details.
- */
-
-package io.element.android.features.login.impl.resolver.network
-
-class FakeWellknownRequest : WellknownRequest {
-    private var resultMap: Map<String, WellKnown> = emptyMap()
-    fun givenResultMap(map: Map<String, WellKnown>) {
-        resultMap = map
-    }
-
-    override suspend fun execute(baseUrl: String): WellKnown {
-        return resultMap[baseUrl] ?: error("No result provided for $baseUrl")
-    }
-}

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/screens/onboarding/OnBoardingPresenterTest.kt

@@ -13,11 +13,10 @@ import io.element.android.features.enterprise.api.EnterpriseService
 import io.element.android.features.enterprise.test.FakeEnterpriseService
 import io.element.android.features.login.impl.DefaultLoginUserStory
 import io.element.android.features.login.impl.accesscontrol.DefaultAccountProviderAccessControl
-import io.element.android.features.login.impl.accesscontrol.ElementWellknownRetriever
-import io.element.android.features.login.impl.accesscontrol.FakeElementWellknownRetriever
 import io.element.android.features.login.impl.login.LoginHelper
 import io.element.android.features.login.impl.web.FakeWebClientUrlForAuthenticationRetriever
 import io.element.android.features.login.impl.web.WebClientUrlForAuthenticationRetriever
+import io.element.android.features.wellknown.test.FakeWellknownRetriever
 import io.element.android.libraries.architecture.AsyncData
 import io.element.android.libraries.core.meta.BuildMeta
 import io.element.android.libraries.featureflag.api.FeatureFlagService
@@ -34,6 +33,7 @@ import io.element.android.libraries.matrix.test.auth.FakeMatrixAuthenticationSer
 import io.element.android.libraries.matrix.test.core.aBuildMeta
 import io.element.android.libraries.oidc.api.OidcActionFlow
 import io.element.android.libraries.oidc.test.customtab.FakeOidcActionFlow
+import io.element.android.libraries.wellknown.api.WellknownRetriever
 import io.element.android.tests.testutils.WarmUpRule
 import io.element.android.tests.testutils.test
 import kotlinx.coroutines.test.runTest
@@ -238,7 +238,7 @@ private fun createPresenter(
     buildMeta: BuildMeta = aBuildMeta(),
     featureFlagService: FeatureFlagService = FakeFeatureFlagService(),
     enterpriseService: EnterpriseService = FakeEnterpriseService(),
-    elementWellknownRetriever: ElementWellknownRetriever = FakeElementWellknownRetriever(),
+    wellknownRetriever: WellknownRetriever = FakeWellknownRetriever(),
     rageshakeFeatureAvailability: () -> Boolean = { true },
     loginHelper: LoginHelper = createLoginHelper(),
 ) = OnBoardingPresenter(
@@ -248,7 +248,7 @@ private fun createPresenter(
     enterpriseService = enterpriseService,
     defaultAccountProviderAccessControl = DefaultAccountProviderAccessControl(
         enterpriseService = enterpriseService,
-        elementWellknownRetriever = elementWellknownRetriever,
+        wellknownRetriever = wellknownRetriever,
     ),
     rageshakeFeatureAvailability = rageshakeFeatureAvailability,
     loginHelper = loginHelper,

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/screens/qrcode/scan/QrCodeScanPresenterTest.kt

@@ -14,15 +14,15 @@ import com.google.common.truth.Truth.assertThat
 import io.element.android.features.enterprise.api.EnterpriseService
 import io.element.android.features.enterprise.test.FakeEnterpriseService
 import io.element.android.features.login.impl.accesscontrol.DefaultAccountProviderAccessControl
-import io.element.android.features.login.impl.accesscontrol.ElementWellknownRetriever
-import io.element.android.features.login.impl.accesscontrol.FakeElementWellknownRetriever
 import io.element.android.features.login.impl.changeserver.AccountProviderAccessException
 import io.element.android.features.login.impl.qrcode.FakeQrCodeLoginManager
+import io.element.android.features.wellknown.test.FakeWellknownRetriever
 import io.element.android.libraries.core.coroutine.CoroutineDispatchers
 import io.element.android.libraries.matrix.api.auth.qrlogin.QrCodeLoginStep
 import io.element.android.libraries.matrix.api.auth.qrlogin.QrLoginException
 import io.element.android.libraries.matrix.test.auth.qrlogin.FakeMatrixQrCodeLoginData
 import io.element.android.libraries.matrix.test.auth.qrlogin.FakeMatrixQrCodeLoginDataFactory
+import io.element.android.libraries.wellknown.api.WellknownRetriever
 import io.element.android.tests.testutils.lambda.lambdaRecorder
 import io.element.android.tests.testutils.test
 import io.element.android.tests.testutils.testCoroutineDispatchers
@@ -162,14 +162,14 @@ class QrCodeScanPresenterTest {
         coroutineDispatchers: CoroutineDispatchers = testCoroutineDispatchers(),
         qrCodeLoginManager: FakeQrCodeLoginManager = FakeQrCodeLoginManager(),
         enterpriseService: EnterpriseService = FakeEnterpriseService(),
-        elementWellknownRetriever: ElementWellknownRetriever = FakeElementWellknownRetriever(),
+        wellknownRetriever: WellknownRetriever = FakeWellknownRetriever(),
     ) = QrCodeScanPresenter(
         qrCodeLoginDataFactory = qrCodeLoginDataFactory,
         qrCodeLoginManager = qrCodeLoginManager,
         coroutineDispatchers = coroutineDispatchers,
         defaultAccountProviderAccessControl = DefaultAccountProviderAccessControl(
             enterpriseService = enterpriseService,
-            elementWellknownRetriever = elementWellknownRetriever,
+            wellknownRetriever = wellknownRetriever,
         ),
     )
 }

features/login/impl/src/test/kotlin/io/element/android/features/login/impl/screens/searchaccountprovider/SearchAccountProviderPresenterTest.kt

@@ -13,12 +13,14 @@ import app.cash.turbine.test
 import com.google.common.truth.Truth.assertThat
 import io.element.android.features.login.impl.changeserver.aChangeServerState
 import io.element.android.features.login.impl.resolver.HomeserverResolver
-import io.element.android.features.login.impl.resolver.network.FakeWellknownRequest
-import io.element.android.features.login.impl.resolver.network.WellKnown
-import io.element.android.features.login.impl.resolver.network.WellKnownBaseConfig
+import io.element.android.features.wellknown.test.FakeWellknownRetriever
 import io.element.android.libraries.architecture.AsyncData
 import io.element.android.libraries.matrix.test.A_HOMESERVER_URL
+import io.element.android.libraries.wellknown.api.WellKnown
+import io.element.android.libraries.wellknown.api.WellKnownBaseConfig
 import io.element.android.tests.testutils.WarmUpRule
+import io.element.android.tests.testutils.lambda.lambdaRecorder
+import io.element.android.tests.testutils.lambda.value
 import io.element.android.tests.testutils.testCoroutineDispatchers
 import kotlinx.coroutines.test.runTest
 import org.junit.Rule
@@ -30,9 +32,9 @@ class SearchAccountProviderPresenterTest {
 
     @Test
     fun `present - initial state`() = runTest {
-        val fakeWellknownRequest = FakeWellknownRequest()
+        val fakeWellknownRetriever = FakeWellknownRetriever()
         val presenter = SearchAccountProviderPresenter(
-            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRequest),
+            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRetriever),
             changeServerPresenter = { aChangeServerState() }
         )
         moleculeFlow(RecompositionMode.Immediate) {
@@ -46,9 +48,9 @@ class SearchAccountProviderPresenterTest {
 
     @Test
     fun `present - enter text no result`() = runTest {
-        val fakeWellknownRequest = FakeWellknownRequest()
+        val fakeWellknownRetriever = FakeWellknownRetriever()
         val presenter = SearchAccountProviderPresenter(
-            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRequest),
+            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRetriever),
             changeServerPresenter = { aChangeServerState() }
         )
         moleculeFlow(RecompositionMode.Immediate) {
@@ -66,9 +68,9 @@ class SearchAccountProviderPresenterTest {
 
     @Test
     fun `present - enter valid url no wellknown`() = runTest {
-        val fakeWellknownRequest = FakeWellknownRequest()
+        val fakeWellknownRetriever = FakeWellknownRetriever()
         val presenter = SearchAccountProviderPresenter(
-            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRequest),
+            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRetriever),
             changeServerPresenter = { aChangeServerState() }
         )
         moleculeFlow(RecompositionMode.Immediate) {
@@ -92,14 +94,20 @@ class SearchAccountProviderPresenterTest {
 
     @Test
     fun `present - enter text one result with wellknown`() = runTest {
-        val fakeWellknownRequest = FakeWellknownRequest()
-        fakeWellknownRequest.givenResultMap(
-            mapOf(
-                "https://test.io" to aWellKnown(),
-            )
+        val getWellKnownResult = lambdaRecorder<String, WellKnown> {
+            when (it) {
+                "https://test.org" -> error("not found")
+                "https://test.com" -> error("not found")
+                "https://test.io" -> aWellKnown()
+                "https://test" -> error("not found")
+                else -> error("should not happen")
+            }
+        }
+        val fakeWellknownRetriever = FakeWellknownRetriever(
+            getWellKnownResult = getWellKnownResult,
         )
         val presenter = SearchAccountProviderPresenter(
-            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRequest),
+            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRetriever),
             changeServerPresenter = { aChangeServerState() }
         )
         moleculeFlow(RecompositionMode.Immediate) {
@@ -118,6 +126,65 @@ class SearchAccountProviderPresenterTest {
                     )
                 )
             )
+            getWellKnownResult.assertions().isCalledExactly(4)
+                .withSequence(
+                    listOf(value("https://test.org")),
+                    listOf(value("https://test.com")),
+                    listOf(value("https://test.io")),
+                    listOf(value("https://test")),
+                )
+        }
+    }
+
+    @Test
+    fun `present - enter text two results with wellknown`() = runTest {
+        val getWellKnownResult = lambdaRecorder<String, WellKnown> {
+            when (it) {
+                "https://test.org" -> aWellKnown()
+                "https://test.com" -> error("not found")
+                "https://test.io" -> aWellKnown()
+                "https://test" -> error("not found")
+                else -> error("should not happen")
+            }
+        }
+        val fakeWellknownRetriever = FakeWellknownRetriever(
+            getWellKnownResult = getWellKnownResult,
+        )
+        val presenter = SearchAccountProviderPresenter(
+            homeserverResolver = HomeserverResolver(testCoroutineDispatchers(), fakeWellknownRetriever),
+            changeServerPresenter = { aChangeServerState() }
+        )
+        moleculeFlow(RecompositionMode.Immediate) {
+            presenter.present()
+        }.test {
+            val initialState = awaitItem()
+            initialState.eventSink.invoke(SearchAccountProviderEvents.UserInput("test"))
+            val withInputState = awaitItem()
+            assertThat(withInputState.userInput).isEqualTo("test")
+            assertThat(initialState.userInputResult).isEqualTo(AsyncData.Uninitialized)
+            assertThat(awaitItem().userInputResult).isInstanceOf(AsyncData.Loading::class.java)
+            assertThat(awaitItem().userInputResult).isEqualTo(
+                AsyncData.Success(
+                    listOf(
+                        aHomeserverData(homeserverUrl = "https://test.org"),
+                    )
+                )
+            )
+            assertThat(awaitItem().userInputResult).isEqualTo(
+                AsyncData.Success(
+                    listOf(
+                        aHomeserverData(homeserverUrl = "https://test.org"),
+                        aHomeserverData(homeserverUrl = "https://test.io"),
+                    )
+                )
+            )
+            getWellKnownResult.assertions().isCalledExactly(4)
+                .withSequence(
+                    listOf(value("https://test.org")),
+                    listOf(value("https://test.com")),
+                    listOf(value("https://test.io")),
+                    listOf(value("https://test")),
+                )
         }
     }
 

libraries/wellknown/api/build.gradle.kts

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+plugins {
+    id("io.element.android-library")
+}
+
+android {
+    namespace = "io.element.android.libraries.wellknown.api"
+}

libraries/wellknown/api/src/main/kotlin/io/element/android/libraries/wellknown/api/ElementWellKnown.kt

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2023, 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.wellknown.api
+
+data class ElementWellKnown(
+    val registrationHelperUrl: String? = null,
+    val enforceElementPro: Boolean? = null,
+)

libraries/wellknown/api/src/main/kotlin/io/element/android/libraries/wellknown/api/WellKnown.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2023, 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.wellknown.api
+
+data class WellKnown(
+    val homeServer: WellKnownBaseConfig? = null,
+    val identityServer: WellKnownBaseConfig? = null,
+)
+
+data class WellKnownBaseConfig(
+    val baseURL: String? = null
+)

libraries/wellknown/api/src/main/kotlin/io/element/android/libraries/wellknown/api/WellknownRetriever.kt

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.wellknown.api
+
+interface WellknownRetriever {
+    suspend fun getWellKnown(baseUrl: String): WellKnown?
+    suspend fun getElementWellKnown(baseUrl: String): ElementWellKnown?
+}

libraries/wellknown/impl/build.gradle.kts

@@ -0,0 +1,32 @@
+import extension.setupAnvil
+
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+plugins {
+    id("io.element.android-library")
+    id("kotlin-parcelize")
+    alias(libs.plugins.kotlin.serialization)
+}
+
+android {
+    namespace = "io.element.android.libraries.wellknown.impl"
+}
+
+setupAnvil()
+
+dependencies {
+    implementation(libs.androidx.annotationjvm)
+    implementation(libs.coroutines.core)
+    implementation(platform(libs.network.retrofit.bom))
+    implementation(libs.network.retrofit)
+    implementation(libs.serialization.json)
+    implementation(projects.libraries.architecture)
+    implementation(projects.libraries.core)
+    implementation(projects.libraries.network)
+    implementation(projects.libraries.wellknown.api)
+}

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/DefaultWellknownRetriever.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.wellknown.impl
+
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.libraries.core.uri.ensureProtocol
+import io.element.android.libraries.di.AppScope
+import io.element.android.libraries.network.RetrofitFactory
+import io.element.android.libraries.wellknown.api.ElementWellKnown
+import io.element.android.libraries.wellknown.api.WellKnown
+import io.element.android.libraries.wellknown.api.WellKnownBaseConfig
+import io.element.android.libraries.wellknown.api.WellknownRetriever
+import timber.log.Timber
+import javax.inject.Inject
+
+@ContributesBinding(AppScope::class)
+class DefaultWellknownRetriever @Inject constructor(
+    private val retrofitFactory: RetrofitFactory,
+) : WellknownRetriever {
+    override suspend fun getWellKnown(baseUrl: String): WellKnown? {
+        val wellknownApi = buildWellknownApi(baseUrl) ?: return null
+        return try {
+            wellknownApi.getWellKnown().map()
+        } catch (e: Exception) {
+            Timber.e(e, "Failed to retrieve well-known data for $baseUrl")
+            null
+        }
+    }
+
+    override suspend fun getElementWellKnown(baseUrl: String): ElementWellKnown? {
+        val wellknownApi = buildWellknownApi(baseUrl) ?: return null
+        return try {
+            wellknownApi.getElementWellKnown().map()
+        } catch (e: Exception) {
+            Timber.e(e, "Failed to retrieve Element well-known data for $baseUrl")
+            null
+        }
+    }
+
+    private fun buildWellknownApi(accountProviderUrl: String): WellknownAPI? {
+        return try {
+            retrofitFactory.create(accountProviderUrl.ensureProtocol())
+                .create(WellknownAPI::class.java)
+        } catch (e: Exception) {
+            // If the base URL is not valid, we cannot retrieve the well-known data
+            Timber.e(e, "Failed to create Retrofit instance for $accountProviderUrl")
+            null
+        }
+    }
+}
+
+private fun InternalElementWellKnown.map() = ElementWellKnown(
+    registrationHelperUrl = registrationHelperUrl,
+    enforceElementPro = enforceElementPro,
+)
+
+private fun InternalWellKnown.map() = WellKnown(
+    homeServer = homeServer?.map(),
+    identityServer = identityServer?.map(),
+)
+
+private fun InternalWellKnownBaseConfig.map() = WellKnownBaseConfig(
+    baseURL = baseURL,
+)

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/InternalElementWellKnown.kt

@@ -1,11 +1,11 @@
 /*
- * Copyright 2023, 2024 New Vector Ltd.
+ * Copyright 2025 New Vector Ltd.
  *
  * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
  * Please see LICENSE files in the repository root for full details.
  */
 
-package io.element.android.features.login.impl.resolver.network
+package io.element.android.libraries.wellknown.impl
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
@@ -20,7 +20,7 @@ import kotlinx.serialization.Serializable
  * .
  */
 @Serializable
-data class ElementWellKnown(
+data class InternalElementWellKnown(
     @SerialName("registration_helper_url")
     val registrationHelperUrl: String? = null,
     @SerialName("enforce_element_pro")

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/InternalWellKnown.kt

@@ -5,9 +5,8 @@
  * Please see LICENSE files in the repository root for full details.
  */
 
-package io.element.android.features.login.impl.resolver.network
+package io.element.android.libraries.wellknown.impl
 
-import io.element.android.libraries.core.bool.orFalse
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -26,13 +25,9 @@ import kotlinx.serialization.Serializable
  * .
  */
 @Serializable
-data class WellKnown(
+data class InternalWellKnown(
     @SerialName("m.homeserver")
-    val homeServer: WellKnownBaseConfig? = null,
+    val homeServer: InternalWellKnownBaseConfig? = null,
     @SerialName("m.identity_server")
-    val identityServer: WellKnownBaseConfig? = null,
-) {
-    fun isValid(): Boolean {
-        return homeServer?.baseURL?.isNotBlank().orFalse()
-    }
-}
+    val identityServer: InternalWellKnownBaseConfig? = null,
+)

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/InternalWellKnownBaseConfig.kt

@@ -5,7 +5,7 @@
  * Please see LICENSE files in the repository root for full details.
  */
 
-package io.element.android.features.login.impl.resolver.network
+package io.element.android.libraries.wellknown.impl
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
@@ -20,7 +20,7 @@ import kotlinx.serialization.Serializable
  * .
  */
 @Serializable
-data class WellKnownBaseConfig(
+data class InternalWellKnownBaseConfig(
     @SerialName("base_url")
     val baseURL: String? = null
 )

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/WellknownAPI.kt

@@ -5,14 +5,14 @@
  * Please see LICENSE files in the repository root for full details.
  */
 
-package io.element.android.features.login.impl.resolver.network
+package io.element.android.libraries.wellknown.impl
 
 import retrofit2.http.GET
 
 internal interface WellknownAPI {
     @GET(".well-known/matrix/client")
-    suspend fun getWellKnown(): WellKnown
+    suspend fun getWellKnown(): InternalWellKnown
 
     @GET(".well-known/element/element.json")
-    suspend fun getElementWellKnown(): ElementWellKnown
+    suspend fun getElementWellKnown(): InternalElementWellKnown
 }

libraries/wellknown/test/build.gradle.kts

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+plugins {
+    id("io.element.android-library")
+}
+
+android {
+    namespace = "io.element.android.features.wellknown.test"
+}
+
+dependencies {
+    implementation(projects.libraries.wellknown.api)
+    implementation(projects.tests.testutils)
+}

libraries/wellknown/test/src/main/kotlin/io/element/android/features/wellknown/test/FakeWellknownRetriever.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.features.wellknown.test
+
+import io.element.android.libraries.wellknown.api.ElementWellKnown
+import io.element.android.libraries.wellknown.api.WellKnown
+import io.element.android.libraries.wellknown.api.WellknownRetriever
+import io.element.android.tests.testutils.simulateLongTask
+
+class FakeWellknownRetriever(
+    private val getWellKnownResult: (String) -> WellKnown? = { null },
+    private val getElementWellKnownResult: (String) -> ElementWellKnown? = { null },
+) : WellknownRetriever {
+    override suspend fun getWellKnown(baseUrl: String): WellKnown? = simulateLongTask {
+        getWellKnownResult(baseUrl)
+    }
+
+    override suspend fun getElementWellKnown(baseUrl: String): ElementWellKnown? = simulateLongTask {
+        getElementWellKnownResult(baseUrl)
+    }
+}