Do not cache images, accept old iTunes responses

app/src/main/java/de/danoeh/antennapod/discovery/ItunesTopListLoader.java

@@ -82,7 +82,7 @@ public class ItunesTopListLoader {
         String url = "https://itunes.apple.com/%s/rss/toppodcasts/limit=" + limit + "/explicit=true/json";
         Log.d(TAG, "Feed URL " + String.format(url, country));
         Request.Builder httpReq = new Request.Builder()
-                .cacheControl(new CacheControl.Builder().minFresh(1, TimeUnit.DAYS).build())
+                .cacheControl(new CacheControl.Builder().maxStale(1, TimeUnit.DAYS).build())
                 .url(String.format(url, country));
 
         try (Response response = client.newCall(httpReq.build()).execute()) {

core/src/free/java/de/danoeh/antennapod/core/ClientConfig.java

@@ -11,6 +11,8 @@ import de.danoeh.antennapod.core.util.NetworkUtils;
 import de.danoeh.antennapod.core.util.exception.RxJavaErrorHandlerSetup;
 import de.danoeh.antennapod.core.util.gui.NotificationUtils;
 
+import java.io.File;
+
 /**
  * Stores callbacks for core classes like Services, DB classes etc. and other configuration variables.
  * Apps using the core module of AntennaPod should register implementations of all interfaces here.
@@ -44,7 +46,7 @@ public class ClientConfig {
         UserPreferences.init(context);
         PlaybackPreferences.init(context);
         NetworkUtils.init(context);
-        AntennapodHttpClient.setCacheDirectory(context.getCacheDir());
+        AntennapodHttpClient.setCacheDirectory(new File(context.getCacheDir(), "okhttp"));
         SleepTimerPreferences.init(context);
         RxJavaErrorHandlerSetup.setupRxJavaErrorHandler();
         NotificationUtils.createChannels(context);

core/src/main/java/de/danoeh/antennapod/core/glide/ApOkHttpUrlLoader.java

@@ -1,41 +1,31 @@
 package de.danoeh.antennapod.core.glide;
 
+import android.text.TextUtils;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import android.text.TextUtils;
-import android.util.Log;
-
 import com.bumptech.glide.integration.okhttp3.OkHttpStreamFetcher;
 import com.bumptech.glide.load.Options;
 import com.bumptech.glide.load.model.GlideUrl;
 import com.bumptech.glide.load.model.ModelLoader;
 import com.bumptech.glide.load.model.ModelLoaderFactory;
-
-import de.danoeh.antennapod.core.service.BasicAuthorizationInterceptor;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.HttpURLConnection;
-
 import com.bumptech.glide.load.model.MultiModelLoaderFactory;
 import com.bumptech.glide.signature.ObjectKey;
 import de.danoeh.antennapod.core.service.download.AntennapodHttpClient;
-import de.danoeh.antennapod.core.service.download.HttpDownloader;
-import de.danoeh.antennapod.core.storage.DBReader;
 import de.danoeh.antennapod.core.util.NetworkUtils;
 import okhttp3.Interceptor;
 import okhttp3.OkHttpClient;
 import okhttp3.Protocol;
-import okhttp3.Request;
 import okhttp3.Response;
 import okhttp3.ResponseBody;
 
+import java.io.IOException;
+import java.io.InputStream;
+
 /**
  * @see com.bumptech.glide.integration.okhttp3.OkHttpUrlLoader
  */
 class ApOkHttpUrlLoader implements ModelLoader<String, InputStream> {
 
-    private static final String TAG = ApOkHttpUrlLoader.class.getSimpleName();
-
     /**
      * The default factory for {@link ApOkHttpUrlLoader}s.
      */
@@ -50,6 +40,7 @@ class ApOkHttpUrlLoader implements ModelLoader<String, InputStream> {
                     if (internalClient == null) {
                         OkHttpClient.Builder builder = AntennapodHttpClient.newBuilder();
                         builder.interceptors().add(new NetworkAllowanceInterceptor());
+                        builder.cache(null); // Handled by Glide
                         internalClient = builder.build();
                     }
                 }
@@ -109,8 +100,9 @@ class ApOkHttpUrlLoader implements ModelLoader<String, InputStream> {
 
     private static class NetworkAllowanceInterceptor implements Interceptor {
 
+        @NonNull
         @Override
-        public Response intercept(Chain chain) throws IOException {
+        public Response intercept(@NonNull Chain chain) throws IOException {
             if (NetworkUtils.isImageAllowed()) {
                 return chain.proceed(chain.request());
             } else {

core/src/play/java/de/danoeh/antennapod/core/ClientConfig.java

@@ -17,6 +17,8 @@ import de.danoeh.antennapod.core.util.NetworkUtils;
 import de.danoeh.antennapod.core.util.exception.RxJavaErrorHandlerSetup;
 import de.danoeh.antennapod.core.util.gui.NotificationUtils;
 
+import java.io.File;
+
 /**
  * Stores callbacks for core classes like Services, DB classes etc. and other configuration variables.
  * Apps using the core module of AntennaPod should register implementations of all interfaces here.
@@ -63,7 +65,7 @@ public class ClientConfig {
             Log.v(TAG, "Cast is disabled. All Cast-related initialization will be skipped.");
         }
         installSslProvider(context);
-        AntennapodHttpClient.setCacheDirectory(context.getCacheDir());
+        AntennapodHttpClient.setCacheDirectory(new File(context.getCacheDir(), "okhttp"));
         SleepTimerPreferences.init(context);
         RxJavaErrorHandlerSetup.setupRxJavaErrorHandler();
         NotificationUtils.createChannels(context);