Add Mangacow (mngcow.co) source. (#113)

src/en/mangacow/build.gradle

@@ -0,0 +1,13 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+ext {
+    appName = 'Tachiyomi: Mangacow'
+    pkgNameSuffix = 'en.mangacow'
+    extClass = '.Mangacow'
+    extVersionCode = 1
+    extVersionSuffix = 1
+    libVersion = '1.0'
+}
+
+apply from: "$rootDir/common.gradle"

src/en/mangacow/src/eu/kanade/tachiyomi/extension/en/mangacow/Mangacow.kt

@@ -0,0 +1,165 @@
+package eu.kanade.tachiyomi.extension.en.mangacow
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.POST
+import eu.kanade.tachiyomi.source.model.*
+import eu.kanade.tachiyomi.source.online.ParsedHttpSource
+import eu.kanade.tachiyomi.util.asJsoup
+import okhttp3.FormBody
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.regex.Pattern
+
+class Mangacow : ParsedHttpSource() {
+    override val name = "Mangacow"
+
+    override val baseUrl = "http://mngcow.co"
+
+    override val lang = "en"
+
+    override val supportsLatest = true
+
+    override val client: OkHttpClient = network.cloudflareClient
+
+    companion object {
+        val pagesUrlPattern by lazy {
+            Pattern.compile("""arr_img.push\(\"(.*?)\"\)""")
+        }
+
+        val dateFormat by lazy {
+            SimpleDateFormat("MMM dd, yyyy")
+        }
+    }
+
+    override fun popularMangaSelector() = "ul#wpm_mng_lst > li > div.det > a"
+
+    override fun latestUpdatesSelector() = popularMangaSelector()
+
+    override fun popularMangaRequest(page: Int)
+        = GET("$baseUrl/manga-list/all/any/most-popular/$page/", headers)
+
+    override fun latestUpdatesRequest(page: Int)
+        = GET("$baseUrl/manga-list/all/any/last-updated/$page/", headers)
+
+    override fun popularMangaFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        manga.setUrlWithoutDomain(element.attr("href"))
+        manga.title = element.text().trim()
+        return manga
+    }
+
+    override fun latestUpdatesFromElement(element: Element): SManga {
+        return popularMangaFromElement(element)
+    }
+
+    // Mangacow does not have many series, so everything is displayed on a single page.
+    // If this changes someday, I will update *NextPageSelector() accordingly.
+    override fun popularMangaNextPageSelector() = null
+
+    override fun latestUpdatesNextPageSelector() = popularMangaNextPageSelector()
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        val form = FormBody.Builder().apply {
+            add("txt_wpm_wgt_mng_sch_nme", query)
+            add("cmd_wpm_wgt_mng_sch_sbm", "1")
+        }
+        return POST("${baseUrl}/manga-list/search/", headers, form.build())
+    }
+
+    override fun searchMangaSelector() = popularMangaSelector()
+
+    override fun searchMangaFromElement(element: Element): SManga {
+        return popularMangaFromElement(element)
+    }
+
+    override fun searchMangaNextPageSelector() = popularMangaNextPageSelector()
+
+    override fun mangaDetailsParse(document: Document) = SManga.create().apply {
+        val infoElement = document.select("div.mng_ifo").first()
+
+        author = infoElement.select("a[href*='/manga-list/author/']").map {
+            it.text().trim()
+        }.joinToString(", ")
+        artist = infoElement.select("a[href*='/manga-list/author/']").map {
+            it.text().trim()
+        }.joinToString(", ")
+        genre = infoElement.select("a[href*='/manga-list/category/']").map {
+            it.text().trim()
+        }.joinToString(", ")
+        description = infoElement.select("div.mngdesc").first()?.text()?.trim()
+        status = infoElement.select("a[href*='/manga-list/status/']").first().text().let {
+            parseStatus(it)
+        }
+        thumbnail_url = infoElement.select("div.cvr_ara > img.cvr")?.attr("src")
+    }
+
+    private fun parseStatus(status: String) = when {
+        status.contains("Ongoing") -> SManga.ONGOING
+        status.contains("Completed") -> SManga.COMPLETED
+        else -> SManga.UNKNOWN
+    }
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        var response = response
+        val chapters = mutableListOf<SChapter>()
+        do {
+            val document = response.asJsoup()
+            document.select(chapterListSelector()).forEach {
+                chapters.add(chapterFromElement(it))
+            }
+            val nextPage = chapterListNextPageSelector().let { document.select(it).first() }
+            if (nextPage != null) {
+                response = client.newCall(GET(nextPage.attr("href"))).execute()
+            }
+        } while (nextPage != null)
+        return chapters
+    }
+
+    private fun chapterListNextPageSelector() = "ul.pgg > li > a:contains(Next)"
+
+    override fun chapterListSelector() = "ul.mng_chp > li.lng_ > a.lst"
+
+    override fun chapterFromElement(element: Element) = SChapter.create().apply {
+        setUrlWithoutDomain(element.attr("href"))
+        name = element.select("b.val").first().text().trim()
+        date_upload = element.select("b.dte").text()?.substringAfterLast("Published on ")?.trim()?.let {
+            parseChapterDate(it)
+        } ?: 0L
+    }
+
+    private fun parseChapterDate(date: String): Long {
+       return try {
+            dateFormat.parse(date).time
+        } catch (e: ParseException) {
+            0L
+        }
+    }
+
+    override fun pageListRequest(chapter: SChapter) = POST(baseUrl + chapter.url, headers)
+
+    override fun pageListParse(response: Response): List<Page> {
+        val pages = mutableListOf<Page>()
+        val m = pagesUrlPattern.matcher(response.body().string())
+        var i = 0
+        while (m.find()) {
+            pages.add(Page(i++, "", m.group(1)))
+        }
+        return pages
+    }
+
+    override fun pageListParse(document: Document): List<Page> {
+        throw Exception("Not used")
+    }
+
+    override fun imageUrlRequest(page: Page) = GET(page.url)
+
+    override fun imageUrlParse(document: Document) = ""
+
+    override fun getFilterList() = FilterList()
+}