HentaiNexus extension (#1248)

Signed-off-by: Rama Bondan Prakoso <ramanarubp@gmail.com>

src/en/hentainexus/build.gradle

@@ -0,0 +1,12 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+ext {
+    appName = 'Tachiyomi: HentaiNexus'
+    pkgNameSuffix = 'en.hentainexus'
+    extClass = '.HentaiNexus'
+    extVersionCode = 1
+    libVersion = '1.2'
+}
+
+apply from: "$rootDir/common.gradle"

src/en/hentainexus/src/eu/kanade/tachiyomi/extension/en/hentainexus/HentaiNexus.kt

@@ -0,0 +1,207 @@
+package eu.kanade.tachiyomi.extension.en.hentainexus
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.*
+import eu.kanade.tachiyomi.source.online.ParsedHttpSource
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
+import java.lang.StringBuilder
+import java.net.URLEncoder
+
+class HentaiNexus : ParsedHttpSource() {
+
+    override val name = "HentaiNexus"
+
+    override val baseUrl = "https://hentainexus.com"
+
+    override val lang = "en"
+
+    override val supportsLatest = true
+
+    override val client: OkHttpClient = network.cloudflareClient
+
+    override fun latestUpdatesSelector() = "div.container div.column"
+
+    override fun latestUpdatesRequest(page: Int) = pagedRequest("$baseUrl/", page)
+
+    override fun latestUpdatesFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        val item = element.select("div.column a")
+
+        manga.url = item.attr("href")
+        manga.title = item.text()
+        manga.thumbnail_url = element.select("figure.image > img").attr("src")
+
+        return manga
+    }
+
+    override fun latestUpdatesNextPageSelector() = "nav.pagination > a.pagination-next"
+
+    override fun popularMangaRequest(page: Int): Request = latestUpdatesRequest(page)
+
+    override fun popularMangaFromElement(element: Element) = latestUpdatesFromElement(element)
+
+    override fun popularMangaSelector() = latestUpdatesSelector()
+
+    override fun popularMangaNextPageSelector() = latestUpdatesNextPageSelector()
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        var url: String? = null
+        var queryString: String? = null
+        fun requireNoUrl() = require(url == null && queryString == null) {
+            "You cannot combine filters or use text search with filters!"
+        }
+
+        filters.findInstance<ArtistFilter>()?.let { f ->
+            if(f.state.isNotBlank()) {
+                requireNoUrl()
+                url = "/"
+                queryString = "q=artist:%22${URLEncoder.encode(f.state, "UTF-8")}%22"
+            }
+        }
+
+        filters.findInstance<TagFilter>()?.let { f ->
+            if(f.state.isNotBlank()) {
+                requireNoUrl()
+                url = "/"
+                queryString = "q=tag:%22${URLEncoder.encode(f.state, "UTF-8")}%22"
+            }
+        }
+
+        if(query.isNotBlank()) {
+            requireNoUrl()
+            url = "/"
+            queryString = "q=" + URLEncoder.encode(query, "UTF-8")
+        }
+
+        return url?.let {
+            pagedRequest("$baseUrl$url", page, queryString)
+        } ?: latestUpdatesRequest(page)
+    }
+
+    private fun pagedRequest(url: String, page: Int, queryString: String? = null): Request {
+        // The site redirects page 1 -> url-without-page so we do this redirect early for optimization
+        val builtUrl =  if(page == 1) url else "${url}page/$page"
+        return GET(if(queryString != null) "$builtUrl?$queryString" else builtUrl)
+    }
+
+    override fun searchMangaSelector() = latestUpdatesSelector()
+
+    override fun searchMangaFromElement(element: Element) = latestUpdatesFromElement(element)
+
+    override fun searchMangaNextPageSelector() = latestUpdatesNextPageSelector()
+
+    override fun mangaDetailsRequest(manga: SManga): Request {
+        if (manga.url.startsWith("http")) {
+            return GET(manga.url, headers)
+        }
+        return super.mangaDetailsRequest(manga)
+    }
+
+    override fun mangaDetailsParse(document: Document): SManga {
+        val infoElement = document.select("div.column")
+        val manga = SManga.create()
+        val genres = mutableListOf<String>()
+
+        document.select("td.viewcolumn:containsOwn(Tags) + td a").forEach { element ->
+            val genre = element.text()
+            genres.add(genre)
+        }
+
+        manga.title = infoElement.select("h1").text()
+        manga.author = infoElement.select("td.viewcolumn:containsOwn(Artist) + td").text()
+        manga.artist = infoElement.select("td.viewcolumn:containsOwn(Artist) + td").text()
+        manga.status = SManga.COMPLETED
+        manga.genre = genres.joinToString(", ")
+        manga.description = getDesc(document)
+        manga.thumbnail_url = document.select("figure.image > img").attr("src")
+
+        return manga
+    }
+
+    fun getDesc(document: Document): String {
+        val infoElement = document.select("div.column")
+        val stringBuilder = StringBuilder()
+        val description = infoElement.select("td.viewcolumn:containsOwn(Description) + td").text()
+        val magazine = infoElement.select("td.viewcolumn:containsOwn(Magazine) + td").text()
+        val parodies = infoElement.select("td.viewcolumn:containsOwn(Parody) + td").text()
+        val publisher = infoElement.select("td.viewcolumn:containsOwn(Publisher) + td").text()
+        val pagess = infoElement.select("td.viewcolumn:containsOwn(Pages) + td").text()
+
+        stringBuilder.append(description)
+        stringBuilder.append("\n\n")
+
+        stringBuilder.append("Magazine: ")
+        stringBuilder.append(magazine)
+        stringBuilder.append("\n\n")
+
+        stringBuilder.append("Parodies: ")
+        stringBuilder.append(parodies)
+        stringBuilder.append("\n\n")
+
+        stringBuilder.append("Publisher: ")
+        stringBuilder.append(publisher)
+        stringBuilder.append("\n\n")
+
+        stringBuilder.append("Pages: ")
+        stringBuilder.append(pagess)
+
+        return stringBuilder.toString()
+    }
+
+    override fun chapterListRequest(manga: SManga): Request {
+        if (manga.url.startsWith("http")) {
+            return GET(manga.url, headers)
+        }
+        return super.chapterListRequest(manga)
+    }
+
+    override fun chapterListSelector() = "div.container nav.depict-button-set"
+
+    override fun chapterFromElement(element: Element): SChapter {
+        val urlElement = element.select("div.level-item a")
+        val chapter = SChapter.create()
+
+        chapter.url = urlElement.attr("href")
+        chapter.name = "Read Online: Chapter 0"
+
+        return chapter
+    }
+
+    override fun pageListRequest(chapter: SChapter): Request {
+        if (chapter.url.startsWith("http")) {
+            return GET(chapter.url, headers)
+        }
+        return super.pageListRequest(chapter)
+    }
+
+    override fun pageListParse(document: Document): List<Page> {
+        val pages = mutableListOf<Page>()
+        var script = document.select("script").last().data()
+        var url = script.substringAfter("[").substringBefore("]")
+            .replace(Regex("""["\\]"""), "")
+            .split(",")
+
+        for (i in 0 until url.size) {
+            pages.add(Page(i, "", url[i]))
+        }
+
+        return pages
+    }
+
+    override fun imageUrlParse(document: Document): String = throw  UnsupportedOperationException("Not used")
+
+    override fun getFilterList() = FilterList(
+            Filter.Header("Only one filter may be used at a time."),
+            Filter.Separator(),
+            ArtistFilter(),
+            TagFilter()
+    )
+
+    class ArtistFilter : Filter.Text("Search by Artist (must be exact match)")
+    class TagFilter : Filter.Text("Search by Tag (must be exact match)")
+}
+
+private inline fun <reified T> Iterable<*>.findInstance() = find { it is T } as? T