Merge pull request #89 from KeineDX4/rf_dobrochan_webp_preview

DobrochanRefuge: thumbnail loading fix

Author: TrixiEther

extensions/refugedobrochan/build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'chan-extension'
 chan {
     nameUpper 'RefugeDobrochan'
     packageName 'com.trixiether.dashchan.chan.refugedobrochan'
-    versionName '1.5'
+    versionName '1.6'
     apiVersion 1
     hosts 'rf.dobrochan.net'
 }

extensions/refugedobrochan/src/com/trixiether/dashchan/chan/refugedobrochan/RefugeDobrochanChanPerformer.java

@@ -1,10 +1,29 @@
 package com.trixiether.dashchan.chan.refugedobrochan;
 
+import android.net.Uri;
+import java.net.HttpURLConnection;
+import chan.content.InvalidResponseException;
 import chan.content.VichanChanPerformer;
+import chan.http.HttpException;
+import chan.http.HttpRequest;
+import chan.http.HttpResponse;
 import chan.http.MultipartEntity;
 import chan.text.ParseException;
 
 public class RefugeDobrochanChanPerformer extends VichanChanPerformer {
+    @Override
+    public ReadContentResult onReadContent(ReadContentData data) throws HttpException, InvalidResponseException {
+        if (data.uri.toString().contains("/thumb/") && data.uri.toString().endsWith(".png")) {
+            HttpResponse response = new HttpRequest(data.uri, data).setSuccessOnly(false).perform();
+            if (response.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND)
+            {
+                Uri webpThumbUri = Uri.parse(data.uri.toString().replace(".png", ".webp"));
+                return new ReadContentResult(new HttpRequest(webpThumbUri, data.direct).perform());
+            }
+        }
+        return super.onReadContent(data);
+    }
+
     @Override
     protected void parseAntispamFields(String text, MultipartEntity entity) throws ParseException {
         RefugeDobrochanAntispamFieldsParser.parseAndApply(text, entity, "board", "thread", "name", "email",