MangaHub: Add getting API Key back (#16392)

multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/mangahub/MangaHub.kt

@@ -15,7 +15,10 @@ import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.buildJsonObject
 import kotlinx.serialization.json.put
+import kotlinx.serialization.json.putJsonObject
+import okhttp3.Cookie
 import okhttp3.Headers
+import okhttp3.HttpUrl.Companion.toHttpUrl
 import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
 import okhttp3.Interceptor
 import okhttp3.OkHttpClient
@@ -24,7 +27,9 @@ import okhttp3.RequestBody.Companion.toRequestBody
 import okhttp3.Response
 import org.jsoup.nodes.Document
 import org.jsoup.nodes.Element
+import rx.Observable
 import uy.kohesive.injekt.injectLazy
+import java.net.URLEncoder
 import java.text.ParseException
 import java.text.SimpleDateFormat
 import java.util.Calendar
@@ -39,8 +44,12 @@ abstract class MangaHub(
 
     override val supportsLatest = true
 
+    private var baseApiUrl = "https://api.mghubcdn.com"
+    private var baseCdnUrl = "https://imgx.mghubcdn.com"
+
     override val client: OkHttpClient = super.client.newBuilder()
         .addInterceptor(::uaIntercept)
+        .addInterceptor(::apiAuthInterceptor)
         .rateLimit(1)
         .build()
 
@@ -56,9 +65,6 @@ abstract class MangaHub(
 
     open val json: Json by injectLazy()
 
-    private var baseApiUrl = "https://api.mghubcdn.com"
-    private var baseCdnUrl = "https://imgx.mghubcdn.com"
-
     private var userAgent: String? = null
     private var checkedUa = false
 
@@ -88,6 +94,63 @@ abstract class MangaHub(
         return chain.proceed(chain.request())
     }
 
+    private fun apiAuthInterceptor(chain: Interceptor.Chain): Response {
+        val originalRequest = chain.request()
+
+        val cookie = client.cookieJar
+            .loadForRequest(baseUrl.toHttpUrl())
+            .firstOrNull { it.name == "mhub_access" }
+
+        val request =
+            if (originalRequest.url.toString() == "$baseApiUrl/graphql" && cookie != null) {
+                originalRequest.newBuilder()
+                    .header("x-mhub-access", cookie.value)
+                    .build()
+            } else {
+                originalRequest
+            }
+
+        return chain.proceed(request)
+    }
+
+    private fun refreshApiKey(chapter: SChapter) {
+        val now = Calendar.getInstance().time.time
+
+        val slug = "$baseUrl${chapter.url}"
+            .toHttpUrlOrNull()
+            ?.pathSegments
+            ?.get(1)
+
+        val url = if (slug != null) {
+            "$baseUrl/manga/$slug".toHttpUrl()
+        } else {
+            baseUrl.toHttpUrl()
+        }
+
+        // Set required cookie (for cache busting?)
+        val recently = buildJsonObject {
+            putJsonObject((now - (0..3600).random()).toString()) {
+                put("mangaID", (1..42_000).random())
+                put("number", (1..20).random())
+            }
+        }.toString()
+
+        client.cookieJar.saveFromResponse(
+            url,
+            listOf(
+                Cookie.Builder()
+                    .domain(url.host)
+                    .name("recently")
+                    .value(URLEncoder.encode(recently, "utf-8"))
+                    .expiresAt(now + 2 * 60 * 60 * 24 * 31) // +2 months
+                    .build(),
+            ),
+        )
+
+        val request = GET("$url?reloadKey=1", headers)
+        client.newCall(request).execute()
+    }
+
     // popular
     override fun popularMangaRequest(page: Int): Request {
         return GET("$baseUrl/popular/page/$page", headers)
@@ -301,23 +364,55 @@ abstract class MangaHub(
             .toRequestBody()
 
         val newHeaders = headersBuilder()
+            .set("Accept", "application/json")
             .set("Content-Type", "application/json")
             .set("Origin", baseUrl)
+            .set("Sec-Fetch-Dest", "empty")
+            .set("Sec-Fetch-Mode", "cors")
+            .set("Sec-Fetch-Site", "cross-site")
+            .removeAll("Upgrade-Insecure-Requests")
             .build()
 
         return POST("$baseApiUrl/graphql", newHeaders, body)
     }
 
+    override fun fetchPageList(chapter: SChapter): Observable<List<Page>> =
+        super.fetchPageList(chapter)
+            .doOnError { refreshApiKey(chapter) }
+            .retry(1)
+
     override fun pageListParse(document: Document): List<Page> = throw UnsupportedOperationException("Not used")
     override fun pageListParse(response: Response): List<Page> {
-        val pagesString = json.decodeFromString<ApiChapterPagesResponse>(response.body.string()).data.chapter.pages
-        val pages = json.decodeFromString<ApiChapterPages>(pagesString)
+        val chapterObject = json.decodeFromString<ApiChapterPagesResponse>(response.body.string())
+
+        if (chapterObject.data?.chapter == null) {
+            if (chapterObject.errors != null) {
+                val errors = chapterObject.errors.joinToString("\n") { it.message }
+                throw Exception(errors)
+            }
+            throw Exception("Unknown error while processing pages")
+        }
+
+        val pages = json.decodeFromString<ApiChapterPages>(chapterObject.data.chapter.pages)
 
         return pages.i.mapIndexed { i, page ->
             Page(i, "", "$baseCdnUrl/${pages.p}$page")
         }
     }
 
+    // Image
+    override fun imageUrlRequest(page: Page): Request {
+        val newHeaders = headersBuilder()
+            .set("Accept", "image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8")
+            .set("Sec-Fetch-Dest", "image")
+            .set("Sec-Fetch-Mode", "no-cors")
+            .set("Sec-Fetch-Site", "cross-site")
+            .removeAll("Upgrade-Insecure-Requests")
+            .build()
+
+        return GET(page.url, newHeaders)
+    }
+
     override fun imageUrlParse(document: Document): String = throw UnsupportedOperationException("Not used")
 
     // filters

multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/mangahub/MangaHubGenerator.kt

@@ -9,7 +9,7 @@ class MangaHubGenerator : ThemeSourceGenerator {
 
     override val themeClass = "MangaHub"
 
-    override val baseVersionCode: Int = 18
+    override val baseVersionCode: Int = 19
 
     override val sources = listOf(
 //        SingleLang("1Manga.co", "https://1manga.co", "en", isNsfw = true, className = "OneMangaCo"),

multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/mangahub/MangaHubQueries.kt

@@ -14,9 +14,15 @@ val PAGES_QUERY = buildQuery {
     """.trimIndent()
 }
 
+@Serializable
+data class ApiErrorMessages(
+    val message: String,
+)
+
 @Serializable
 data class ApiChapterPagesResponse(
-    val data: ApiChapterData,
+    val data: ApiChapterData?,
+    val errors: List<ApiErrorMessages>?,
 )
 
 @Serializable