[MangaReader] Fix NetShield bypass

src/main/kotlin/org/koitharu/kotatsu/parsers/site/mangareader/MangaReaderParser.kt

@@ -8,6 +8,7 @@ import okhttp3.Cookie
 import okhttp3.HttpUrl.Companion.toHttpUrl
 import okhttp3.Interceptor
 import okhttp3.Response
+import okhttp3.internal.closeQuietly
 import org.json.JSONObject
 import org.jsoup.nodes.Document
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
@@ -33,6 +34,7 @@ internal abstract class MangaReaderParser(
 
 	protected open val listUrl = "/manga"
 	protected open val datePattern = "MMMM d, yyyy"
+	protected open val isNetShieldProtected = false
 
 	private var tagCache: ArrayMap<String, MangaTag>? = null
 	private val mutex = Mutex()
@@ -304,20 +306,31 @@ internal abstract class MangaReaderParser(
 
 	override fun intercept(chain: Interceptor.Chain): Response {
 		val response = chain.proceed(chain.request())
-		if (context.cookieJar.getCookies(domain).none { it.name.contains("NetShield") }) {
+		if (!isNetShieldProtected) {
-			val cookie = runBlocking { response.parseHtml().getNetShieldCookie() } ?: return response
+			return response
+		}
+		val contentType = response.mimeType
+		if (
+			contentType?.endsWith("/html") != false &&
+			context.cookieJar.getCookies(domain).none { it.name.contains("NetShield") }
+		) {
+			val cookie = runBlocking { response.copy().parseHtml().getNetShieldCookie() } ?: return response
 			context.cookieJar.insertCookie(domain, cookie)
-			return chain.proceed(response.request.newBuilder().build())
+			return chain.proceed(response.request.newBuilder().build()).also {
+				response.closeQuietly()
+			}
 		}
 		return response
 	}
 
-	private suspend fun Document.getNetShieldCookie(): Cookie? {
+	private suspend fun Document.getNetShieldCookie(): Cookie? = runCatchingCancellable {
 		val script = select("script").firstNotNullOfOrNull { s ->
 			s.html().takeIf { x -> x.contains("slowAES.decrypt") }
-		} ?: return null
+		} ?: return@runCatchingCancellable null
 		val min = webClient.httpGet("https://$domain/min.js").parseRaw()
-		val res = context.evaluateJs(min + "\n\n" + script.replace("document.cookie =", "return"))
+		val res = context.evaluateJs(min + "\n\n" + script.replace(Regex("document.cookie\\s*=\\s*"), "return "))
-		return Cookie.parse(baseUri().toHttpUrl(), res ?: return null)
+		res?.let {
-	}
+			Cookie.parse(baseUri().toHttpUrl(), it)
+		}
+	}.getOrNull()
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/site/mangareader/ar/SwaTeam.kt

@@ -15,6 +15,7 @@ internal class SwaTeam(context: MangaLoaderContext) :
 	override val datePattern = "MMMM dd, yyyy"
 	override val selectMangaList = ".listupd .bs .bsx"
 	override val selectMangaListImg = "img"
+	override val isNetShieldProtected = true
 
 	override suspend fun getListPage(
 		page: Int,

src/main/kotlin/org/koitharu/kotatsu/parsers/site/mangareader/id/MangaSusuku.kt

@@ -13,4 +13,5 @@ internal class MangaSusuku(context: MangaLoaderContext) :
 	override val listUrl = "/komik"
 	override val datePattern = "MMM d, yyyy"
 	override val sourceLocale: Locale = Locale.ENGLISH
+	override val isNetShieldProtected = true
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/site/mangareader/tr/AfroditScans.kt

@@ -9,4 +9,5 @@ import org.koitharu.kotatsu.parsers.site.mangareader.MangaReaderParser
 internal class AfroditScans(context: MangaLoaderContext) :
 	MangaReaderParser(context, MangaSource.AFRODITSCANS, "afroditscans.com", pageSize = 20, searchPageSize = 10) {
 	override val datePattern = "MMM d, yyyy"
+	override val isNetShieldProtected = true
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/util/OkHttp.kt

@@ -14,7 +14,7 @@ suspend fun Call.await(): Response = suspendCancellableCoroutine { continuation
 }
 
 val Response.mimeType: String?
-	get() = body?.contentType()?.run { "$type/$subtype" }
+	get() = header("content-type")?.takeUnless { it.isEmpty() }
 
 val Response.contentDisposition: String?
 	get() = header("Content-Disposition")
@@ -27,3 +27,7 @@ fun Headers.Builder.mergeWith(other: Headers, replaceExisting: Boolean): Headers
 	}
 	return this
 }
+
+fun Response.copy() = newBuilder()
+	.body(peekBody(Long.MAX_VALUE))
+	.build()