MadTheme: Retry image load with another CDN (#9047)

fallback to cdn

Co-authored-by: Vetle Ledaal <13540478+vetleledaal@users.noreply.github.com>

lib-multisrc/madtheme/build.gradle.kts

@@ -2,4 +2,4 @@ plugins {
     id("lib-multisrc")
 }
 
-baseVersionCode = 18
+baseVersionCode = 19

lib-multisrc/madtheme/src/eu/kanade/tachiyomi/multisrc/madtheme/MadTheme.kt

@@ -39,8 +39,23 @@ abstract class MadTheme(
 
     override val client: OkHttpClient = network.cloudflareClient.newBuilder()
         .rateLimit(1, 1, TimeUnit.SECONDS)
+        .addInterceptor { chain ->
+            val request = chain.request()
+            val url = request.url
+            val response = chain.proceed(request)
+            if (!response.isSuccessful && url.fragment == "image-request") {
+                response.close()
+                val newUrl = url.newBuilder()
+                    .host("sb.mbcdn.xyz")
+                    .encodedPath(url.encodedPath.replaceFirst("/res/", "/"))
+                    .fragment(null)
                     .build()
 
+                return@addInterceptor chain.proceed(request.newBuilder().url(newUrl).build())
+            }
+            response
+        }.build()
+
     protected open val useLegacyApi = false
 
     protected open val useSlugSearch = false
@@ -329,6 +344,10 @@ abstract class MadTheme(
         }
     }
 
+    override fun imageRequest(page: Page): Request {
+        return GET("${page.imageUrl}#image-request", headers)
+    }
+
     override fun imageUrlParse(document: Document): String =
         throw UnsupportedOperationException()