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Basic epub support

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len 2017-02-05 12:01:58 +01:00
parent 08f2cd2472
commit aeef8c02d8
1 changed files with 166 additions and 59 deletions
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225
app/src/main/java/eu/kanade/tachiyomi/source/LocalSource.kt
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@ -8,6 +8,8 @@ import eu.kanade.tachiyomi.util.ChapterRecognition
import eu.kanade.tachiyomi.util.DiskUtil
import eu.kanade.tachiyomi.util.ZipContentProvider
import net.greypanther.natsort.CaseInsensitiveSimpleNaturalComparator
import org.jsoup.Jsoup
import org.jsoup.nodes.Document
import rx.Observable
import timber.log.Timber
import java.io.File
@ -57,64 +59,6 @@ class LocalSource(private val context: Context) : CatalogueSource {
override fun toString() = context.getString(R.string.local_source)
override fun fetchMangaDetails(manga: SManga) = Observable.just(manga)
override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
val chapters = getBaseDirectories(context)
.mapNotNull { File(it, manga.url).listFiles()?.toList() }
.flatten()
.filter { it.isDirectory || isSupportedFormat(it.extension) }
.map { chapterFile ->
SChapter.create().apply {
url = "${manga.url}/${chapterFile.name}"
val chapName = if (chapterFile.isDirectory) {
chapterFile.name
} else {
chapterFile.nameWithoutExtension
}
val chapNameCut = chapName.replace(manga.title, "", true).trim()
name = if (chapNameCut.isEmpty()) chapName else chapNameCut
date_upload = chapterFile.lastModified()
ChapterRecognition.parseChapterNumber(this, manga)
}
}
.sortedWith(Comparator<SChapter> { c1, c2 ->
val c = c2.chapter_number.compareTo(c1.chapter_number)
if (c == 0) comparator.compare(c2.name, c1.name) else c
})
return Observable.just(chapters)
}
override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
val baseDirs = getBaseDirectories(context)
for (dir in baseDirs) {
val chapFile = File(dir, chapter.url)
if (!chapFile.exists()) continue
val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
val pageList = if (chapFile.isDirectory) {
chapFile.listFiles()
.filter { !it.isDirectory && DiskUtil.isImage(it.name, { FileInputStream(it) }) }
.sortedWith(Comparator<File> { f1, f2 -> comparator.compare(f1.name, f2.name) })
.map { Uri.fromFile(it) }
} else {
val zip = ZipFile(chapFile)
zip.entries().toList()
.filter { !it.isDirectory && DiskUtil.isImage(it.name, { zip.getInputStream(it) }) }
.sortedWith(Comparator<ZipEntry> { f1, f2 -> comparator.compare(f1.name, f2.name) })
.map { Uri.parse("content://${ZipContentProvider.PROVIDER}${chapFile.absolutePath}!/${it.name}") }
}.mapIndexed { i, uri -> Page(i, uri = uri).apply { status = Page.READY } }
return Observable.just(pageList)
}
return Observable.error(Exception("Chapter not found"))
}
override fun fetchPopularManga(page: Int) = fetchSearchManga(page, "", POPULAR_FILTERS)
override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
@ -181,11 +125,174 @@ class LocalSource(private val context: Context) : CatalogueSource {
override fun fetchLatestUpdates(page: Int) = fetchSearchManga(page, "", LATEST_FILTERS)
override fun fetchMangaDetails(manga: SManga) = Observable.just(manga)
override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
val chapters = getBaseDirectories(context)
.mapNotNull { File(it, manga.url).listFiles()?.toList() }
.flatten()
.filter { it.isDirectory || isSupportedFormat(it.extension) }
.map { chapterFile ->
SChapter.create().apply {
url = "${manga.url}/${chapterFile.name}"
val chapName = if (chapterFile.isDirectory) {
chapterFile.name
} else {
chapterFile.nameWithoutExtension
}
val chapNameCut = chapName.replace(manga.title, "", true).trim()
name = if (chapNameCut.isEmpty()) chapName else chapNameCut
date_upload = chapterFile.lastModified()
ChapterRecognition.parseChapterNumber(this, manga)
}
}
.sortedWith(Comparator<SChapter> { c1, c2 ->
val c = c2.chapter_number.compareTo(c1.chapter_number)
if (c == 0) comparator.compare(c2.name, c1.name) else c
})
return Observable.just(chapters)
}
override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
val baseDirs = getBaseDirectories(context)
for (dir in baseDirs) {
val chapFile = File(dir, chapter.url)
if (!chapFile.exists()) continue
return Observable.just(getLoader(chapFile).load())
}
return Observable.error(Exception("Chapter not found"))
}
private fun isSupportedFormat(extension: String): Boolean {
return extension.equals("zip", true) || extension.equals("cbz", true)
return extension.equals("zip", true) || extension.equals("cbz", true) || extension.equals("epub", true)
}
private fun getLoader(file: File): Loader {
val extension = file.extension
return if (file.isDirectory) {
DirectoryLoader(file)
} else if (extension.equals("zip", true) || extension.equals("cbz", true)) {
ZipLoader(file)
} else if (extension.equals("epub", true)) {
EpubLoader(file)
} else {
throw Exception("Invalid chapter format")
}
}
private class OrderBy : Filter.Sort("Order by", arrayOf("Title", "Date"), Filter.Sort.Selection(0, true))
override fun getFilterList() = FilterList(OrderBy())
interface Loader {
fun load(): List<Page>
}
class DirectoryLoader(val file: File) : Loader {
override fun load(): List<Page> {
val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
return file.listFiles()
.filter { !it.isDirectory && DiskUtil.isImage(it.name, { FileInputStream(it) }) }
.sortedWith(Comparator<File> { f1, f2 -> comparator.compare(f1.name, f2.name) })
.map { Uri.fromFile(it) }
.mapIndexed { i, uri -> Page(i, uri = uri).apply { status = Page.READY } }
}
}
class ZipLoader(val file: File) : Loader {
override fun load(): List<Page> {
val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
ZipFile(file).use { zip ->
return zip.entries().toList()
.filter { !it.isDirectory && DiskUtil.isImage(it.name, { zip.getInputStream(it) }) }
.sortedWith(Comparator<ZipEntry> { f1, f2 -> comparator.compare(f1.name, f2.name) })
.map { Uri.parse("content://${ZipContentProvider.PROVIDER}${file.absolutePath}!/${it.name}") }
.mapIndexed { i, uri -> Page(i, uri = uri).apply { status = Page.READY } }
}
}
}
class EpubLoader(val file: File) : Loader {
override fun load(): List<Page> {
ZipFile(file).use { zip ->
val allEntries = zip.entries().toList()
val ref = getPackageHref(zip)
val doc = getPackageDocument(zip, ref)
val pages = getPagesFromDocument(doc)
val hrefs = getHrefMap(ref, allEntries.map { it.name })
return getImagesFromPages(zip, pages, hrefs)
.map { Uri.parse("content://${ZipContentProvider.PROVIDER}${file.absolutePath}!/$it") }
.mapIndexed { i, uri -> Page(i, uri = uri).apply { status = Page.READY } }
}
}
/**
* Returns the path to the package document.
*/
private fun getPackageHref(zip: ZipFile): String {
val meta = zip.getEntry("META-INF/container.xml")
if (meta != null) {
val metaDoc = zip.getInputStream(meta).use { Jsoup.parse(it, null, "") }
val path = metaDoc.getElementsByTag("rootfile").first()?.attr("full-path")
if (path != null) {
return path
}
}
return "OEBPS/content.opf"
}
/**
* Returns the package document where all the files are listed.
*/
private fun getPackageDocument(zip: ZipFile, ref: String): Document {
val entry = zip.getEntry(ref)
return zip.getInputStream(entry).use { Jsoup.parse(it, null, "") }
}
/**
* Returns all the pages from the epub.
*/
private fun getPagesFromDocument(document: Document): List<String> {
val pages = document.select("manifest > item")
.filter { "application/xhtml+xml" == it.attr("media-type") }
.associateBy { it.attr("id") }
val spine = document.select("spine > itemref").map { it.attr("idref") }
return spine.mapNotNull { pages[it] }.map { it.attr("href") }
}
/**
* Returns all the images contained in every page from the epub.
*/
private fun getImagesFromPages(zip: ZipFile, pages: List<String>, hrefs: Map<String, String>): List<String> {
return pages.map { page ->
val entry = zip.getEntry(hrefs[page])
val document = zip.getInputStream(entry).use { Jsoup.parse(it, null, "") }
document.getElementsByTag("img").mapNotNull { hrefs[it.attr("src")] }
}.flatten()
}
/**
* Returns a map with a relative url as key and abolute url as path.
*/
private fun getHrefMap(packageHref: String, entries: List<String>): Map<String, String> {
val lastSlashPos = packageHref.lastIndexOf('/')
if (lastSlashPos < 0) {
return entries.associateBy { it }
}
return entries.associateBy { entry ->
if (entry.isNotBlank() && entry.length > lastSlashPos) {
entry.substring(lastSlashPos + 1)
} else {
entry
}
}
}
}
}