Add Namicomi support for external chapters on MD (#1188)

app/src/main/java/eu/kanade/tachiyomi/source/online/all/MangaDex.kt

@@ -31,6 +31,7 @@ import exh.md.handlers.FollowsHandler
 import exh.md.handlers.MangaHandler
 import exh.md.handlers.MangaHotHandler
 import exh.md.handlers.MangaPlusHandler
+import exh.md.handlers.NamicomiHandler
 import exh.md.handlers.PageHandler
 import exh.md.handlers.SimilarHandler
 import exh.md.network.MangaDexLoginHelper
@@ -123,6 +124,9 @@ class MangaDex(delegate: HttpSource, val context: Context) :
     private val mangaHotHandler by lazy {
         MangaHotHandler(network.client, network.defaultUserAgentProvider())
     }
+    private val namicomiHandler by lazy {
+        NamicomiHandler(network.client, network.defaultUserAgentProvider())
+    }
     private val pageHandler by lazy {
         PageHandler(
             headers,
@@ -132,6 +136,7 @@ class MangaDex(delegate: HttpSource, val context: Context) :
             bilibiliHandler,
             azukHandler,
             mangaHotHandler,
+            namicomiHandler,
             trackPreferences,
             mdList,
         )

app/src/main/java/exh/md/handlers/NamicomiHandler.kt

@@ -0,0 +1,49 @@
+package exh.md.handlers
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.awaitSuccess
+import eu.kanade.tachiyomi.source.model.Page
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+import okhttp3.Response
+
+class NamicomiHandler(currentClient: OkHttpClient, userAgent: String) {
+    private val apiUrl = "https://api.namicomi.com"
+
+    private val headers = Headers.Builder()
+        .add("User-Agent", userAgent)
+        .build()
+
+    val client: OkHttpClient = currentClient
+
+    suspend fun fetchPageList(externalUrl: String, dataSaver: Boolean): List<Page> {
+        val chapterId = externalUrl.substringBefore("?").substringAfterLast("/")
+        val request =
+            GET(
+                "$apiUrl/images/chapter/$chapterId?newQualities=true",
+                headers,
+            )
+        return pageListParse(client.newCall(request).awaitSuccess(), chapterId, dataSaver)
+    }
+
+    private fun pageListParse(response: Response, chapterId: String, dataSaver: Boolean): List<Page> {
+        val data = Json.parseToJsonElement(response.body.string()).jsonObject["data"]!!
+        val baseUrl = data.jsonObject["baseUrl"]!!.jsonPrimitive.content
+        val hash = data.jsonObject["hash"]!!.jsonPrimitive.content
+
+        /* Available quality levels: source, high, medium, low */
+        val quality = if(dataSaver) "low" else "high"
+
+        return data
+            .jsonObject[quality]!!
+            .jsonArray.mapIndexed { index, element ->
+                val fileName = element.jsonObject["filename"]!!.jsonPrimitive.content
+                val url = "$baseUrl/chapter/$chapterId/$hash/$quality/$fileName"
+                Page(index, url, url)
+            }
+    }
+}

app/src/main/java/exh/md/handlers/PageHandler.kt

@@ -27,6 +27,7 @@ class PageHandler(
     private val bilibiliHandler: BilibiliHandler,
     private val azukiHandler: AzukiHandler,
     private val mangaHotHandler: MangaHotHandler,
+    private val namicomiHandler: NamicomiHandler,
     private val preferences: TrackPreferences,
     private val mdList: MdList,
 ) {
@@ -54,6 +55,10 @@ class PageHandler(
                     chapter.scanlator.equals("mangahot", true) -> mangaHotHandler.fetchPageList(
                         chapterResponse.data.attributes.externalUrl,
                     )
+                    chapter.scanlator.equals("namicomi", true) -> namicomiHandler.fetchPageList(
+                        chapterResponse.data.attributes.externalUrl,
+                        dataSaver = dataSaver,
+                    )
                     else -> throw Exception("${chapter.scanlator} not supported")
                 }
             } else {
@@ -122,6 +127,9 @@ class PageHandler(
             page.imageUrl?.contains("mangahot", true) == true -> {
                 mangaHotHandler.client.newCachelessCallWithProgress(GET(page.imageUrl!!, mangaHotHandler.headers), page)
             }
+            page.imageUrl?.contains("namicomi", true) == true -> {
+                mangaHotHandler.client.newCachelessCallWithProgress(GET(page.imageUrl!!, mangaHotHandler.headers), page)
+            }
             else -> null
         }
     }