From cb60de30dca0ee6502ccfdf29900f8f8e6137cdc Mon Sep 17 00:00:00 2001
From: Mook <mook@users.noreply.github.com>
Date: Fri, 24 Sep 2021 03:12:33 -0700
Subject: [PATCH] CopyManga: Update getting decrypt passwords. (#9209)

Instead of looking for attributes on elements, we now have to evaluate
JavaScript to get the decryption password.

Fixes #9197
---
 src/zh/copymanga/build.gradle                 |  2 +-
 .../extension/zh/copymanga/CopyManga.kt       | 21 ++++++++++++++++---
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/src/zh/copymanga/build.gradle b/src/zh/copymanga/build.gradle
index d6ece7935..257d41846 100644
--- a/src/zh/copymanga/build.gradle
+++ b/src/zh/copymanga/build.gradle
@@ -5,7 +5,7 @@ ext {
     extName = 'CopyManga'
     pkgNameSuffix = 'zh.copymanga'
     extClass = '.CopyManga'
-    extVersionCode = 16
+    extVersionCode = 17
 }
 apply from: "$rootDir/common.gradle"
 
diff --git a/src/zh/copymanga/src/eu/kanade/tachiyomi/extension/zh/copymanga/CopyManga.kt b/src/zh/copymanga/src/eu/kanade/tachiyomi/extension/zh/copymanga/CopyManga.kt
index d66f3b88a..a0bd7ea6a 100644
--- a/src/zh/copymanga/src/eu/kanade/tachiyomi/extension/zh/copymanga/CopyManga.kt
+++ b/src/zh/copymanga/src/eu/kanade/tachiyomi/extension/zh/copymanga/CopyManga.kt
@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.extension.zh.copymanga
 import android.app.Application
 import android.content.SharedPreferences
 import com.luhuiguo.chinese.ChineseUtils
+import com.squareup.duktape.Duktape
 import eu.kanade.tachiyomi.lib.ratelimit.SpecificHostRateLimitInterceptor
 import eu.kanade.tachiyomi.network.GET
 import eu.kanade.tachiyomi.source.ConfigurableSource
@@ -20,6 +21,7 @@ import okhttp3.Request
 import okhttp3.Response
 import org.json.JSONArray
 import org.json.JSONObject
+import org.jsoup.nodes.Document
 import org.jsoup.nodes.Element
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
@@ -179,7 +181,7 @@ class CopyManga : ConfigurableSource, HttpSource() {
     override fun chapterListRequest(manga: SManga) = mangaDetailsRequest(manga)
     override fun chapterListParse(response: Response): List<SChapter> {
         val document = response.asJsoup()
-        val disposablePass = document.select("div.detailPass").first()?.attr("disposable")
+        val disposablePass = this.evaluateScript(document, "dio")
 
         // Get encrypted chapters data from another endpoint
         val chapterResponse =
@@ -234,7 +236,7 @@ class CopyManga : ConfigurableSource, HttpSource() {
     override fun pageListParse(response: Response): List<Page> {
         val document = response.asJsoup()
         val disposableData = document.select("div.imageData").first().attr("contentKey")
-        val disposablePass = document.select("div.imagePass").first()?.attr("contentKey")
+        val disposablePass = this.evaluateScript(document, "jojo")
 
         val pageJsonString = decryptChapterData(disposableData, disposablePass)
         val pageArray = JSONArray(pageJsonString)
@@ -448,11 +450,24 @@ class CopyManga : ConfigurableSource, HttpSource() {
         }
     }
 
+    private fun evaluateScript(document: Document, expression: String): String {
+        return Duktape.create().use { duktape ->
+            document.select("script:not([src])").map(Element::data).forEach { script ->
+                try {
+                    duktape.evaluate(script)
+                } catch (ex: Exception) {
+                    // Ignore any exception from evaluating the script
+                }
+            }
+            duktape.evaluate(expression).toString()
+        }
+    }
+
     // thanks to unpacker toolsite, http://matthewfl.com/unPacker.html
     private fun decryptChapterData(disposableData: String, disposablePass: String?): String {
         val prePart = disposableData.substring(0, 16)
         val postPart = disposableData.substring(16, disposableData.length)
-        val disposablePassByteArray = (disposablePass ?: "xxxmanga.abc.key").toByteArray(Charsets.UTF_8)
+        val disposablePassByteArray = (disposablePass ?: "hotmanga.aes.key").toByteArray(Charsets.UTF_8)
         val prepartByteArray = prePart.toByteArray(Charsets.UTF_8)
         val dataByteArray = hexStringToByteArray(postPart)