Expose a method to update the CDN Url (#5585)

stream-chat-android-client/api/stream-chat-android-client.api

@@ -219,6 +219,7 @@ public final class io/getstream/chat/android/client/ChatClient$Builder : io/gets
 	public fun <init> (Ljava/lang/String;Landroid/content/Context;)V
 	public final fun baseUrl (Ljava/lang/String;)Lio/getstream/chat/android/client/ChatClient$Builder;
 	public fun build ()Lio/getstream/chat/android/client/ChatClient;
+	public final fun cdnUrl (Ljava/lang/String;)Lio/getstream/chat/android/client/ChatClient$Builder;
 	public final fun clientDebugger (Lio/getstream/chat/android/client/debugger/ChatClientDebugger;)Lio/getstream/chat/android/client/ChatClient$Builder;
 	public final fun credentialStorage (Lio/getstream/chat/android/client/user/storage/UserCredentialStorage;)Lio/getstream/chat/android/client/ChatClient$Builder;
 	public final fun debugRequests (Z)Lio/getstream/chat/android/client/ChatClient$Builder;

stream-chat-android-client/src/main/java/io/getstream/chat/android/client/ChatClient.kt

@@ -96,6 +96,7 @@ import io.getstream.chat.android.client.events.UserUpdatedEvent
 import io.getstream.chat.android.client.extensions.ATTACHMENT_TYPE_FILE
 import io.getstream.chat.android.client.extensions.ATTACHMENT_TYPE_IMAGE
 import io.getstream.chat.android.client.extensions.cidToTypeAndId
+import io.getstream.chat.android.client.extensions.extractBaseUrl
 import io.getstream.chat.android.client.extensions.internal.isLaterThanDays
 import io.getstream.chat.android.client.header.VersionPrefixHeader
 import io.getstream.chat.android.client.helpers.AppSettingManager
@@ -3582,7 +3583,7 @@ internal constructor(
 
         private var forceInsecureConnection = false
         private var baseUrl: String = "chat.stream-io-api.com"
-        private var cdnUrl: String = baseUrl
+        private var cdnUrl: String? = null
         private var logLevel = ChatLogLevel.NOTHING
         private var warmUp: Boolean = true
         private var loggerHandler: ChatLoggerHandler? = null
@@ -3737,19 +3738,15 @@ internal constructor(
          *
          * @param value The base URL to use.
          */
-        public fun baseUrl(value: String): Builder {
-            var baseUrl = value
-            if (baseUrl.startsWith("https://")) {
-                baseUrl = baseUrl.split("https://").toTypedArray()[1]
-            }
-            if (baseUrl.startsWith("http://")) {
-                baseUrl = baseUrl.split("http://").toTypedArray()[1]
-            }
-            if (baseUrl.endsWith("/")) {
-                baseUrl = baseUrl.substring(0, baseUrl.length - 1)
-            }
-            this.baseUrl = baseUrl
-            return this
+        public fun baseUrl(value: String): Builder = apply {
+            baseUrl = value.extractBaseUrl()
+        }
+
+        /**
+         * Sets the CDN URL to be used by the client.
+         */
+        public fun cdnUrl(value: String): Builder = apply {
+            cdnUrl = value.extractBaseUrl()
         }
 
         /**
@@ -3847,7 +3844,7 @@ internal constructor(
             val config = ChatClientConfig(
                 apiKey = apiKey,
                 httpUrl = "$httpProtocol://$baseUrl/",
-                cdnHttpUrl = "$httpProtocol://$cdnUrl/",
+                cdnHttpUrl = "$httpProtocol://${cdnUrl ?: baseUrl}/",
                 wssUrl = "$wsProtocol://$baseUrl/",
                 warmUp = warmUp,
                 loggerConfig = ChatLoggerConfigImpl(logLevel, loggerHandler),

stream-chat-android-client/src/main/java/io/getstream/chat/android/client/extensions/StringExtensions.kt

@@ -28,6 +28,7 @@ import io.getstream.log.StreamLog
 
 private val snakeRegex = "_[a-zA-Z]".toRegex()
 private val camelRegex = "(?<=[a-zA-Z])[A-Z]".toRegex()
+private val baseUrlRegex = "^(?:https?://)?(.*?)/*$".toRegex()
 
 /**
  * Converts string written in snake case to String in camel case with the first symbol in lower case.
@@ -211,3 +212,12 @@ private fun Uri.Builder.appendValueAsQueryParameterIfNotNull(key: String, value:
         this
     }
 }
+
+/**
+ * Extracts the base URL from a string.
+ * For example, "https://domain.lan/" will return "domain.lan".
+ *
+ * @return The base URL.
+ */
+internal fun String.extractBaseUrl(): String =
+    baseUrlRegex.matchEntire(this)?.groupValues?.get(1) ?: this

stream-chat-android-client/src/test/java/io/getstream/chat/android/client/extensions/BaseUrlTest.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2014-2025 Stream.io Inc. All rights reserved.
+ *
+ * Licensed under the Stream License;
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    https://github.com/GetStream/stream-chat-android/blob/main/LICENSE
+ *
+ * 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 io.getstream.chat.android.client.extensions
+
+import org.amshove.kluent.`should be equal to`
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.CsvSource
+
+internal class BaseUrlTest {
+
+    @ParameterizedTest
+    @CsvSource(
+        "domain.lan,domain.lan",
+        "domain.lan/,domain.lan",
+        "domain.lan//,domain.lan",
+        "http://domain.lan,domain.lan",
+        "http://domain.lan/,domain.lan",
+        "http://domain.lan//,domain.lan",
+        "https://domain.lan,domain.lan",
+        "https://domain.lan/,domain.lan",
+        "https://domain.lan//,domain.lan",
+        "10.0.0.10,10.0.0.10",
+        "10.0.0.10/,10.0.0.10",
+        "http://10.0.0.10/,10.0.0.10",
+        "https://10.0.0.10/,10.0.0.10",
+    )
+    fun test(fullUrl: String, baseUrl: String) {
+        fullUrl.extractBaseUrl() `should be equal to` baseUrl
+    }
+}