Japscan not loading images dirty fix (#2315) (#2404)

Japscan not loading images dirty fix (#2315)

src/fr/japscan/build.gradle

@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: Japscan'
     pkgNameSuffix = 'fr.japscan'
     extClass = '.Japscan'
-    extVersionCode = 16
+    extVersionCode = 18
     libVersion = '1.2'
 }
 

src/fr/japscan/src/eu/kanade/tachiyomi/extension/fr/japscan/Japscan.kt

@@ -30,6 +30,24 @@ class Japscan : ParsedHttpSource() {
 
     override val supportsLatest = true
 
+    val keysheetChapterUrl1 = "https://www.japscan.co/lecture-en-ligne/bloody-kiss/volume-1/"
+    val keysheetChapterUrl2= "https://www.japscan.co/lecture-en-ligne/1-nen-a-gumi-no-monster/1/"
+
+    var keysheet = "0123456789abcdefghijklmnopqrstuvwxyz"
+
+    val realpage_bk_2 = "221518b2f9a20842e4c5379223a5881255d2e522c32277923242520284a542f28085b952e422b1e5a97216b262e5e6621535a22/552c5c112f3e2c4f2e122f025517294925042f322d54513e25822c7e2ev0274751116a4266386a0d56w2506a578b562f6exd2e6/65f435e996fs95fw1160125x715062eve104e33va38454bu632x1315b4fxa10244e2c438932ta38v1158d4e323cx237x933u435/1038xa1"
+    val realpage_bk_4 = "a336f98370e3d9130516d873045639a35633468374c3389353f36313759623633176406345c3e2e60033e713c37687239616b3f6732612a3d4437/5738213e1d642b3d5a3f113d4e3b666c423e973a8d3bja3a50662772597a4270196akc6b74609a613277l1337d6c0776ge60k3220735l85410640/33a25325d2a927b446al56al36fi8672e4dl120113dj7205543ja455354i847lc436955lf26315739529643h744j6249c5e4e40l34el14ci74822/49l12"
+    val realpage_bk_14 = "4033163017801660626355d0118326c0c3202380719055b0e070e020a2e3d0c04883e750d2a029f397704470f0e3a4208303f0b370a37930816022/f0097038e3a9a0e2c0781021d0f303a120f6d075b05nd0e27379d48204b164f8a36od374a3c6f3e0b4fpa0841357f44kc3co798740c8c02p924853/e7b0398052d996e491534p331p331m8319616p6958d01n8922c1cn2122827m915pb1e372ep29a0e2d0c24681el51dna926f291714p71fpe1am2189/01fpb9"
+    val realpage_bk_29 = "e952450996d945591172e4b9e0528549828912293089e469a939a939c172c9d997b276f991c9a842566973f96922e359c222f9b21/932984980e931e908d98742f819f179a7a9d0c972e2a07975794419az6931c248032173809377523a028322b51279a3fbf903e2d6/03dw72bae8a6399bd1f7f26bf8d7196za85140fz00d121ey504b0092d14b581971e9b1e5508x408z8815213080eb60ab30ay30c87/0cbd8"
+    val realpage_monster_1="d7b023a0f83391903313f630b090311054d04910118397b0c140003368b3e3d343e0a390a76032c0d990f16387104953d110405378d030/4388f0d7a052f05820e853203377a04760e06034a0c5b019c05p805223198472d41174f863aqe394f3e6c32014ar30642387f41m13dqe9/f8a0f7700rf95890era9a9e26211a1a29062dqb12ra1fp319p993r11fq31bp9936115pd1421214819pb9c8410p396qb1e2d14qe1ap99a8/603rc9"
+    val realPageUrls = listOf(
+        realpage_bk_2,
+        realpage_bk_4,
+        realpage_bk_14,
+        realpage_bk_29,
+        realpage_monster_1
+    )
+
     override val client: OkHttpClient = network.cloudflareClient.newBuilder().addInterceptor { chain ->
         val indicator = "&decodeImage"
 
@@ -57,6 +75,17 @@ class Japscan : ParsedHttpSource() {
         }
     }
 
+    fun loadKeysheetChapters() {
+        var response = client.newCall(GET(keysheetChapterUrl1, headers)).execute()
+        var doc = response.asJsoup()
+        response = client.newCall(GET(keysheetChapterUrl2, headers)).execute()
+        var doc2 = response.asJsoup()
+
+        // 「MULTI-DOCUMENT DRIFTING!!」
+        createKeysheet(doc, doc2)
+    }
+
+
 	//Popular
     override fun popularMangaRequest(page: Int): Request {
         return GET("$baseUrl/mangas/", headers)
@@ -195,19 +224,56 @@ class Japscan : ParsedHttpSource() {
         }
     }
 
+    fun createKeysheet(doc: Document, doc2: Document) {
+        val pageUrls = mutableListOf<String>()
+
+        var pages = doc.select("select#pages").first()?.select("option")!!; // if this is null we're done
+        for (i in listOf(1,3,13,28)) {
+            pageUrls.add(pages[i].attr("data-img").substring("https://c.japscan.co/".length, pages[i].attr("data-img").length - 4))
+        }
+        pages = doc2.select("select#pages").first()?.select("option")!!; // if this is null we're done
+        for (i in listOf(0)) {
+            pageUrls.add(pages[i].attr("data-img").substring("https://c.japscan.co/".length, pages[i].attr("data-img").length - 4))
+        }
+
+
+        var az = "0123456789abcdefghijklmnopqrstuvwxyz".toCharArray()
+        var ks = "0123456789abcdefghijklmnopqrstuvwxyz".toCharArray()
+
+        for (i in 0 until realPageUrls.count())
+            for (j in 0 until realPageUrls[i].length) {
+                if(realPageUrls[i][j] != pageUrls[i][j]) {
+                    ks[az.indexOf(pageUrls[i][j])] = realPageUrls[i][j]
+
+                }
+            }
+        keysheet = ks.joinToString("")
+    }
+
     override fun pageListParse(document: Document): List<Page> {
+        loadKeysheetChapters()
         val pages = mutableListOf<Page>()
         var imagePath = "(.*\\/).*".toRegex().find(document.select("#image").attr("data-src"))?.groupValues?.get(1)
         val imageScrambled = if (!document.select("script[src^='/js/iYFbYi_U']").isNullOrEmpty()) "&decodeImage" else ""
 
         document.select("select#pages").first()?.select("option")?.forEach {
             if (it.attr("data-img").startsWith("http")) imagePath = ""
-            pages.add(Page(pages.size, "", "$imagePath${it.attr("data-img")}$imageScrambled"))
+            pages.add(Page(pages.size, "", decodeImageUrl("$imagePath${it.attr("data-img")}")+"$imageScrambled"))
         }
 
         return pages
     }
 
+    private fun decodeImageUrl(url: String): String {
+        val az = "0123456789abcdefghijklmnopqrstuvwxyz"
+        // skip https://, cut after next slash and before extension
+        var urlBase = url.substring(0, url.indexOf('/', 10)+1)
+        var extension = url.substring(url.length - 4, url.length)
+        var encodedPart = url.substring(url.indexOf('/', 10)+1, url.length-4)
+
+        return urlBase+encodedPart.map { if (az.indexOf(it) < 0) it else keysheet[az.indexOf(it)]}.joinToString("")+extension
+    }
+
     override fun imageUrlParse(document: Document): String = ""
 
     private fun decodeImage(img: InputStream): ByteArray {