Initial commit

multisrc/overrides/madara/firescans/src/FireScans.kt

@@ -0,0 +1,67 @@
+package eu.kanade.tachiyomi.extension.en.firescans
+
+import android.util.Base64
+import eu.kanade.tachiyomi.lib.cryptoaes.CryptoAES
+import eu.kanade.tachiyomi.multisrc.madara.Madara
+import eu.kanade.tachiyomi.network.interceptor.rateLimit
+import eu.kanade.tachiyomi.source.model.Page
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import okhttp3.OkHttpClient
+import org.jsoup.nodes.Document
+
+class FireScans : Madara("Fire Scans", "https://firescans.xyz", "en") {
+
+    override val client: OkHttpClient = super.client.newBuilder()
+        .rateLimit(20, 5)
+        .build()
+
+    override val useNewChapterEndpoint: Boolean = true
+
+    override fun pageListParse(document: Document): List<Page> {
+        countViews(document)
+
+        val chapterProtector = document.selectFirst(chapterProtectorSelector)
+            ?: return document.select(pageListParseSelector).mapIndexed { index, element ->
+                val imageUrl = element.selectFirst("img")?.let { imageFromElement(it) }
+                Page(index, document.location(), imageUrl)
+            }
+
+        val chapterProtectorHtml = if (chapterProtector.attr("src").startsWith("data:text/javascript;base64,")) {
+            Base64.decode(chapterProtector.attr("src").substringAfter(","), Base64.DEFAULT).decodeToString()
+        } else {
+            chapterProtector.html()
+        }
+
+        val password = chapterProtectorHtml
+            .substringAfter("wpmangaprotectornonce='")
+            .substringBefore("';")
+        val chapterData = json.parseToJsonElement(
+            chapterProtectorHtml
+                .substringAfter("chapter_data='")
+                .substringBefore("';")
+                .replace("\\/", "/"),
+        ).jsonObject
+
+        val unsaltedCiphertext = Base64.decode(chapterData["ct"]!!.jsonPrimitive.content, Base64.DEFAULT)
+        val salt = chapterData["s"]!!.jsonPrimitive.content.decodeHex()
+        val ciphertext = SALTED + salt + unsaltedCiphertext
+
+        val rawImgArray = CryptoAES.decrypt(Base64.encodeToString(ciphertext, Base64.DEFAULT), password)
+        val imgArrayString = json.parseToJsonElement(rawImgArray).jsonPrimitive.content
+        val imgArray = json.parseToJsonElement(imgArrayString).jsonArray
+
+        return imgArray.mapIndexed { idx, it ->
+            Page(idx, document.location(), it.jsonPrimitive.content)
+        }
+    }
+
+    private fun String.decodeHex(): ByteArray {
+        check(length % 2 == 0) { "Must have an even length" }
+
+        return chunked(2)
+            .map { it.toInt(16).toByte() }
+            .toByteArray()
+    }
+}