Initial commit

lib/cda-extractor/build.gradle.kts

@@ -0,0 +1,3 @@
+plugins {
+    id("lib-android")
+}

lib/cda-extractor/src/main/java/eu/kanade/tachiyomi/lib/cdaextractor/CdaExtractor.kt

@@ -0,0 +1,126 @@
+package eu.kanade.tachiyomi.lib.cdaextractor
+
+import eu.kanade.tachiyomi.animesource.model.Video
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.POST
+import eu.kanade.tachiyomi.util.asJsoup
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.Json
+import okhttp3.Headers
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.RequestBody.Companion.toRequestBody
+import uy.kohesive.injekt.injectLazy
+import java.net.URLDecoder
+import java.nio.charset.StandardCharsets
+
+class CdaPlExtractor(private val client: OkHttpClient) {
+
+    private val json: Json by injectLazy()
+
+    fun getVideosFromUrl(url: String, headers: Headers, prefix: String): List<Video> {
+        val embedHeaders = headers.newBuilder()
+            .add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8")
+            .add("Host", url.toHttpUrl().host)
+            .build()
+
+        val document = client.newCall(
+            GET(url, headers = embedHeaders),
+        ).execute().asJsoup()
+
+        //Nic lepszego nie wymyśliłem jak ktoś kto przegląda ten kod znajdzie sposób lepszy to chetnie przyjme radę <3
+        //Do you have any idea how to write it differently? I will accept advice!
+
+        val deletedMessage = "Materiał na który wskazywał ten link został usunięty przez jego właściciela lub Administratora!"
+
+        if (document.toString().contains(deletedMessage)) return emptyList()
+
+        val data = json.decodeFromString<PlayerData>(
+            document.selectFirst("div[player_data]")!!.attr("player_data"),
+        )
+        return data.video.qualities.map { quality ->
+            if (quality.value == data.video.quality && quality.value != "lq") {
+                val videoUrl = decryptFile(data.video.file)
+                Video(videoUrl, "${prefix}cda.pl - ${quality.key}", videoUrl)
+            } else {
+                val jsonBody = """
+                    {
+                        "jsonrpc": "2.0",
+                        "method": "videoGetLink",
+                        "id": 1,
+                        "params": [
+                            "${data.video.id}",
+                            "${quality.value}",
+                            ${data.video.ts},
+                            "${data.video.hash2}",
+                            {}
+                        ]
+                    }
+                """.trimIndent().toRequestBody("application/json".toMediaType())
+                val postHeaders = Headers.headersOf(
+                    "Content-Type",
+                    "application/json",
+                    "X-Requested-With",
+                    "XMLHttpRequest",
+                )
+                val response = client.newCall(
+                    POST("https://www.cda.pl/", headers = postHeaders, body = jsonBody),
+                ).execute()
+                val parsed = json.decodeFromString<PostResponse>(
+                    response.body.string(),
+                )
+                Video(parsed.result.resp, "${prefix}cda.pl - ${quality.key}", parsed.result.resp)
+            }
+        }
+    }
+
+    // Credit: https://github.com/yt-dlp/yt-dlp/blob/master/yt_dlp/extractor/cda.py
+    private fun decryptFile(a: String): String {
+        var decrypted = a
+        listOf("_XDDD", "_CDA", "_ADC", "_CXD", "_QWE", "_Q5", "_IKSDE").forEach { p ->
+            decrypted = decrypted.replace(p, "")
+        }
+        decrypted = URLDecoder.decode(decrypted, StandardCharsets.UTF_8.toString())
+        val b = mutableListOf<Char>()
+        decrypted.forEach { c ->
+            val f = c.code
+            b.add(if (f in 33..126) (33 + (f + 14) % 94).toChar() else c)
+        }
+        decrypted = b.joinToString("")
+        decrypted = decrypted.replace(".cda.mp4", "")
+        listOf(".2cda.pl", ".3cda.pl").forEach { p ->
+            decrypted = decrypted.replace(p, ".cda.pl")
+        }
+        if ("/upstream" in decrypted) {
+            decrypted = decrypted.replace("/upstream", ".mp4/upstream")
+            return "https://$decrypted"
+        }
+        return "https://$decrypted.mp4"
+    }
+
+    @Serializable
+    data class PlayerData(
+        val video: VideoObject,
+    ) {
+        @Serializable
+        data class VideoObject(
+            val id: String,
+            val file: String,
+            val quality: String,
+            val qualities: Map<String, String>,
+            val ts: Int,
+            val hash2: String,
+        )
+    }
+
+    @Serializable
+    data class PostResponse(
+        val result: ResultObject,
+    ) {
+        @Serializable
+        data class ResultObject(
+            val resp: String,
+        )
+    }
+}