Mangadex: Use updated /at-home/server/ endpoint for pages (#10221)

* Move chapter images data to atHome Response

Updates ChapterDto and AtHomeDto as per Deprecation notice

* Use new atHome response to fetch chapter pages

this commit does the following:
 - updates the Dtos as per deprecation notice
 - creates a call to `/at-home/server/` in `pageListRequest`
 - made sure to track of how old chapter token is as was previous
   practice
 - `pageListParse` no longer has the 204 response. Instead we get a 404
   response (not sure about the 504 response for /at-home/server too but
   have to check again. If its not used now, then it could be removed
 - since `atHomeRequestUrl` was necessary for `getValidImageUrlForPage`,
   tried to fetch it from the response. As per their docs and our
   usecase, it should be fine hopefully
   Ref:
   https://square.github.io/okhttp/4.x/okhttp/okhttp3/-response/request/
 - since /chapter/ no longer has `data` attribute, the additional
   check for external chapters was removed
 - tested on 0.12.3 (on Mi A2, running Android12): read few
   chapter/oneshots without issues

* Increment mangadex.extVersionCode

essentially a Christmas present from MD (for its servers :d)

* remove redundant isSuccessful check

essentially dead code since the check is done by `fetchPageList` before
it calls `pageListParse`

src/all/mangadex/build.gradle

@@ -6,7 +6,7 @@ ext {
     extName = 'MangaDex'
     pkgNameSuffix = 'all.mangadex'
     extClass = '.MangaDexFactory'
-    extVersionCode = 147
+    extVersionCode = 148
     isNsfw = true
 }
 

src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/MangaDex.kt

@@ -8,6 +8,7 @@ import androidx.preference.MultiSelectListPreference
 import androidx.preference.PreferenceScreen
 import androidx.preference.SwitchPreferenceCompat
 import eu.kanade.tachiyomi.extension.all.mangadex.dto.AggregateDto
+import eu.kanade.tachiyomi.extension.all.mangadex.dto.AtHomeDto
 import eu.kanade.tachiyomi.extension.all.mangadex.dto.ChapterDto
 import eu.kanade.tachiyomi.extension.all.mangadex.dto.ChapterListDto
 import eu.kanade.tachiyomi.extension.all.mangadex.dto.MangaDto
@@ -231,8 +232,7 @@ abstract class MangaDex(override val lang: String, val dexLang: String) :
             tempUrl.apply {
                 addQueryParameter("group", groupID)
             }
-        }
-        else {
+        } else {
             tempUrl.apply {
                 val actualQuery = query.replace(MDConstants.whitespaceRegex, " ")
                 if (actualQuery.isNotBlank()) {
@@ -375,40 +375,33 @@ abstract class MangaDex(override val lang: String, val dexLang: String) :
         if (!helper.containsUuid(chapter.url)) {
             throw Exception("Migrate this manga from MangaDex to MangaDex to update it")
         }
-        return GET(MDConstants.apiUrl + chapter.url, headers, CacheControl.FORCE_NETWORK)
+        val chapterId = chapter.url.substringAfter("/chapter/")
+        val usingStandardHTTPS =
+            preferences.getBoolean(MDConstants.getStandardHttpsPreferenceKey(dexLang), false)
+        val atHomeRequestUrl = if (usingStandardHTTPS) {
+            "${MDConstants.apiUrl}/at-home/server/$chapterId?forcePort443=true"
+        } else {
+            "${MDConstants.apiUrl}/at-home/server/$chapterId"
+        }
+
+        return helper.mdAtHomeRequest(atHomeRequestUrl, headers, CacheControl.FORCE_NETWORK)
     }
 
     override fun pageListParse(response: Response): List<Page> {
-        if (response.isSuccessful.not()) {
-            throw Exception("HTTP ${response.code}")
-        }
-        if (response.code == 204) {
-            return emptyList()
-        }
-        val chapterDto = helper.json.decodeFromString<ChapterDto>(response.body!!.string()).data
-        val usingStandardHTTPS =
-            preferences.getBoolean(MDConstants.getStandardHttpsPreferenceKey(dexLang), false)
-
-        val atHomeRequestUrl = if (usingStandardHTTPS) {
-            "${MDConstants.apiUrl}/at-home/server/${chapterDto.id}?forcePort443=true"
-        } else {
-            "${MDConstants.apiUrl}/at-home/server/${chapterDto.id}"
-        }
-
-        val host =
-            helper.getMdAtHomeUrl(atHomeRequestUrl, client, headers, CacheControl.FORCE_NETWORK)
-
+        val atHomeRequestUrl = response.request.url
+        val atHomeDto = helper.json.decodeFromString<AtHomeDto>(response.body!!.string())
+        val host = atHomeDto.baseUrl
         val usingDataSaver =
             preferences.getBoolean(MDConstants.getDataSaverPreferenceKey(dexLang), false)
 
         // have to add the time, and url to the page because pages timeout within 30mins now
         val now = Date().time
 
-        val hash = chapterDto.attributes.hash
+        val hash = atHomeDto.chapter.hash
         val pageSuffix = if (usingDataSaver) {
-            chapterDto.attributes.dataSaver.map { "/data-saver/$hash/$it" }
+            atHomeDto.chapter.dataSaver.map { "/data-saver/$hash/$it" }
         } else {
-            chapterDto.attributes.data.map { "/data/$hash/$it" }
+            atHomeDto.chapter.data.map { "/data/$hash/$it" }
         }
 
         return pageSuffix.mapIndexed { index, imgUrl ->

src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/MangaDexHelper.kt

@@ -142,17 +142,14 @@ class MangaDexHelper() {
     /**
      * get the md@home url
      */
-    fun getMdAtHomeUrl(
+    private fun getMdAtHomeUrl(
         tokenRequestUrl: String,
         client: OkHttpClient,
         headers: Headers,
         cacheControl: CacheControl,
     ): String {
-        if (cacheControl == CacheControl.FORCE_NETWORK) {
-            tokenTracker[tokenRequestUrl] = Date().time
-        }
         val response =
-            client.newCall(GET(tokenRequestUrl, headers, cacheControl)).execute()
+            client.newCall(mdAtHomeRequest(tokenRequestUrl, headers, cacheControl)).execute()
 
         // This check is for the error that causes pages to fail to load.
         // It should never be entered, but in case it is, we retry the request.
@@ -164,6 +161,21 @@ class MangaDexHelper() {
         return json.decodeFromString<AtHomeDto>(response.body!!.string()).baseUrl
     }
 
+    /**
+     * create an md at home Request
+     */
+    fun mdAtHomeRequest(
+        tokenRequestUrl: String,
+        headers: Headers,
+        cacheControl: CacheControl
+    ): Request {
+        if (cacheControl == CacheControl.FORCE_NETWORK) {
+            tokenTracker[tokenRequestUrl] = Date().time
+        }
+
+        return GET(tokenRequestUrl, headers, cacheControl)
+    }
+
     /**
      * create an SManga from json element only basic elements
      */
@@ -314,7 +326,7 @@ class MangaDexHelper() {
                 }
             }
 
-            if (attr.externalUrl != null && attr.data.isEmpty()) {
+            if (attr.externalUrl != null) {
                 return null
             }
 

src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/dto/AtHomeDto.kt

@@ -4,7 +4,15 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 data class AtHomeDto(
-    val baseUrl: String
+    val baseUrl: String,
+    val chapter: AtHomeChapterDto,
+)
+
+@Serializable
+data class AtHomeChapterDto(
+    val hash: String,
+    val data: List<String>,
+    val dataSaver: List<String>,
 )
 
 @Serializable

src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/dto/ChapterDto.kt

@@ -30,8 +30,5 @@ data class ChapterAttributesDto(
     val volume: String?,
     val chapter: String?,
     val publishAt: String,
-    val data: List<String>,
-    val dataSaver: List<String>,
-    val hash: String,
     val externalUrl: String?,
 )