add support for Archive chapters to Local source

This commit is contained in:
Aria Moradi
2021-09-18 19:14:06 +04:30
parent ea8fb2c70a
commit 52334087ad
14 changed files with 564 additions and 169 deletions

View File

@@ -0,0 +1,215 @@
package eu.kanade.tachiyomi.util.storage
import eu.kanade.tachiyomi.source.model.SChapter
import eu.kanade.tachiyomi.source.model.SManga
import org.jsoup.Jsoup
import org.jsoup.nodes.Document
import java.io.Closeable
import java.io.File
import java.io.InputStream
import java.text.ParseException
import java.text.SimpleDateFormat
import java.util.Locale
import java.util.zip.ZipEntry
import java.util.zip.ZipFile
/**
* Wrapper over ZipFile to load files in epub format.
*/
class EpubFile(file: File) : Closeable {
/**
* Zip file of this epub.
*/
private val zip = ZipFile(file)
/**
* Path separator used by this epub.
*/
private val pathSeparator = getPathSeparator()
/**
* Closes the underlying zip file.
*/
override fun close() {
zip.close()
}
/**
* Returns an input stream for reading the contents of the specified zip file entry.
*/
fun getInputStream(entry: ZipEntry): InputStream {
return zip.getInputStream(entry)
}
/**
* Returns the zip file entry for the specified name, or null if not found.
*/
fun getEntry(name: String): ZipEntry? {
return zip.getEntry(name)
}
/**
* Fills manga metadata using this epub file's metadata.
*/
fun fillMangaMetadata(manga: SManga) {
val ref = getPackageHref()
val doc = getPackageDocument(ref)
val creator = doc.getElementsByTag("dc:creator").first()
val description = doc.getElementsByTag("dc:description").first()
manga.author = creator?.text()
manga.description = description?.text()
}
/**
* Fills chapter metadata using this epub file's metadata.
*/
fun fillChapterMetadata(chapter: SChapter) {
val ref = getPackageHref()
val doc = getPackageDocument(ref)
val title = doc.getElementsByTag("dc:title").first()
val publisher = doc.getElementsByTag("dc:publisher").first()
val creator = doc.getElementsByTag("dc:creator").first()
var date = doc.getElementsByTag("dc:date").first()
if (date == null) {
date = doc.select("meta[property=dcterms:modified]").first()
}
if (title != null) {
chapter.name = title.text()
}
if (publisher != null) {
chapter.scanlator = publisher.text()
} else if (creator != null) {
chapter.scanlator = creator.text()
}
if (date != null) {
val dateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.getDefault())
try {
val parsedDate = dateFormat.parse(date.text())
if (parsedDate != null) {
chapter.date_upload = parsedDate.time
}
} catch (e: ParseException) {
// Empty
}
}
}
/**
* Returns the path of all the images found in the epub file.
*/
fun getImagesFromPages(): List<String> {
val ref = getPackageHref()
val doc = getPackageDocument(ref)
val pages = getPagesFromDocument(doc)
return getImagesFromPages(pages, ref)
}
/**
* Returns the path to the package document.
*/
private fun getPackageHref(): String {
val meta = zip.getEntry(resolveZipPath("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 resolveZipPath("OEBPS", "content.opf")
}
/**
* Returns the package document where all the files are listed.
*/
private fun getPackageDocument(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(pages: List<String>, packageHref: String): List<String> {
val result = mutableListOf<String>()
val basePath = getParentDirectory(packageHref)
pages.forEach { page ->
val entryPath = resolveZipPath(basePath, page)
val entry = zip.getEntry(entryPath)
val document = zip.getInputStream(entry).use { Jsoup.parse(it, null, "") }
val imageBasePath = getParentDirectory(entryPath)
document.allElements.forEach {
if (it.tagName() == "img") {
result.add(resolveZipPath(imageBasePath, it.attr("src")))
} else if (it.tagName() == "image") {
result.add(resolveZipPath(imageBasePath, it.attr("xlink:href")))
}
}
}
return result
}
/**
* Returns the path separator used by the epub file.
*/
private fun getPathSeparator(): String {
val meta = zip.getEntry("META-INF\\container.xml")
return if (meta != null) {
"\\"
} else {
"/"
}
}
/**
* Resolves a zip path from base and relative components and a path separator.
*/
private fun resolveZipPath(basePath: String, relativePath: String): String {
if (relativePath.startsWith(pathSeparator)) {
// Path is absolute, so return as-is.
return relativePath
}
var fixedBasePath = basePath.replace(pathSeparator, File.separator)
if (!fixedBasePath.startsWith(File.separator)) {
fixedBasePath = "${File.separator}$fixedBasePath"
}
val fixedRelativePath = relativePath.replace(pathSeparator, File.separator)
val resolvedPath = File(fixedBasePath, fixedRelativePath).canonicalPath
return resolvedPath.replace(File.separator, pathSeparator).substring(1)
}
/**
* Gets the parent directory of a path.
*/
private fun getParentDirectory(path: String): String {
val separatorIndex = path.lastIndexOf(pathSeparator)
return if (separatorIndex >= 0) {
path.substring(0, separatorIndex)
} else {
""
}
}
}