Initial commit

This commit is contained in:
Koitharu
2024-10-14 20:02:22 +03:00
commit b6faaaa937
35 changed files with 2187 additions and 0 deletions
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.gradle
build/
!gradle/wrapper/gradle-wrapper.jar
!**/src/main/**/build/
!**/src/test/**/build/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
out/
!**/src/main/**/out/
!**/src/test/**/out/
### Kotlin ###
.kotlin
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store
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# Default ignored files
/shelf/
/workspace.xml
misc.xml
kotlinc.xml
vcs.xml
/inspectionProfiles/
/artifacts/
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="gradleHome" value="" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
</set>
</option>
</GradleProjectSettings>
</option>
</component>
</project>
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import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
plugins {
kotlin("jvm") version "2.0.20"
id("com.gradleup.shadow") version "8.3.3"
}
group = "org.koitharu"
version = "0.1"
tasks.withType<Jar> {
manifest {
attributes["Main-Class"] = "org.koitharu.kotatsu.dl.MainKt"
}
}
tasks.withType<ShadowJar> {
archiveBaseName = "kotatsu-dl"
archiveClassifier = ""
archiveVersion = ""
minimize()
}
repositories {
mavenCentral()
google()
maven { setUrl("https://jitpack.io") }
}
dependencies {
testImplementation(kotlin("test"))
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.9.0")
implementation("com.github.ajalt.clikt:clikt-core:5.0.1")
implementation("com.github.KotatsuApp:kotatsu-parsers:481fb4f0d0")
implementation("com.squareup.okhttp3:okhttp:4.12.0")
implementation("com.squareup.okio:okio:3.9.0")
implementation("io.webfolder:quickjs:1.1.0")
implementation("org.json:json:20240303")
implementation("me.tongfei:progressbar:0.10.1")
implementation("androidx.collection:collection:1.4.4")
}
tasks.test {
useJUnitPlatform()
}
kotlin {
jvmToolchain(17)
}
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kotlin.code.style=official
Binary file not shown.
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#Mon Oct 14 10:35:03 EEST 2024
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
Vendored Executable
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#!/bin/sh
#
# Copyright © 2015-2021 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"
Vendored
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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega
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plugins {
id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
}
rootProject.name = "kotatsu-dl"
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package org.koitharu.kotatsu.dl
import com.github.ajalt.clikt.command.main
import com.github.ajalt.clikt.core.ProgramResult
import com.github.ajalt.clikt.parameters.arguments.argument
import com.github.ajalt.clikt.parameters.options.convert
import com.github.ajalt.clikt.parameters.options.flag
import com.github.ajalt.clikt.parameters.options.option
import com.github.ajalt.clikt.parameters.options.validate
import com.github.ajalt.clikt.parameters.types.enum
import com.github.ajalt.clikt.parameters.types.file
import org.koitharu.kotatsu.dl.download.DownloadFormat
import org.koitharu.kotatsu.dl.download.MangaDownloader
import org.koitharu.kotatsu.dl.parsers.MangaLoaderContextImpl
import org.koitharu.kotatsu.dl.ui.askSelectBranch
import org.koitharu.kotatsu.dl.util.AppCommand
import org.koitharu.kotatsu.dl.util.ChaptersRange
import org.koitharu.kotatsu.dl.util.colored
import java.io.File
class Main : AppCommand(name = "kotatsu-dl") {
private val link: String by argument()
private val destination: File? by option(
names = arrayOf("--dest", "--destination"),
help = "Output file or directory path",
).convert {
it.replaceFirst(Regex("^~"), System.getProperty("user.home"))
}.file(
mustExist = false,
canBeFile = true,
canBeDir = true,
)
private val format: DownloadFormat? by option(
names = arrayOf("--format"),
help = "Output format"
).enum<DownloadFormat>(
ignoreCase = true,
key = { it.name.lowercase() },
)
private val throttle: Boolean by option(
names = arrayOf("--throttle"),
help = "Slow down downloading to avoid blocking your IP address by server",
).flag(default = false)
private val chaptersRange: ChaptersRange? by option(
names = arrayOf("--chapters"),
metavar = "<numbers or range>",
help = "Numbers of chapters to download. Can be a single numbers or range, e.g. \"1-4,8,11\" or \"all\"",
).convert {
ChaptersRange.parse(it)
}.validate { range -> range.validate() }
override suspend fun invoke(): Int {
val context = MangaLoaderContextImpl()
val linkResolver = context.newLinkResolver(link)
print("Resolving link...")
val source = linkResolver.getSource()
if (source == null) {
println()
System.err.println("Unsupported manga source")
return 1
}
println('\r')
colored {
print("Source: ".cyan)
print(source.title.bold)
println()
}
val manga = linkResolver.getManga()
if (manga == null) {
System.err.println("Manga not found")
return 1
}
colored {
print("Title: ".cyan)
println(manga.title.bold)
}
var chapters = manga.chapters
if (chapters.isNullOrEmpty()) {
System.err.println("Manga contains no chapters")
throw ProgramResult(1)
}
chapters = askSelectBranch(chapters)
colored {
print("Total chapters: ".cyan)
println(chapters.size.bold)
}
val range = chaptersRange ?: if (chapters.size > 1) {
colored {
print("==>".green)
println(" Chapters to download (e.g. \"1-4,8,11\" or empty for all):")
print("==>".green)
print(' ')
}
ChaptersRange.parse(readLine())
} else {
ChaptersRange.all()
}
val downloader = MangaDownloader(
context = context,
manga = manga,
chapters = chapters,
destination = destination,
chaptersRange = range,
format = format,
throttle = throttle,
)
val file = downloader.download()
colored {
print("Done.".green.bold)
print(" Saved to ")
println(file.absolutePath.bold)
}
return 0
}
}
suspend fun main(args: Array<String>) = Main().main(args)
@@ -0,0 +1,6 @@
package org.koitharu.kotatsu.dl.download
enum class DownloadFormat {
CBZ, ZIP, DIR
}
@@ -0,0 +1,22 @@
package org.koitharu.kotatsu.dl.download
import androidx.collection.MutableObjectLongMap
import kotlinx.coroutines.delay
import org.koitharu.kotatsu.parsers.model.MangaSource
class DownloadSlowdownDispatcher(
private val defaultDelay: Long,
) {
private val timeMap = MutableObjectLongMap<MangaSource>()
suspend fun delay(source: MangaSource) {
val lastRequest = synchronized(timeMap) {
val res = timeMap.getOrDefault(source, 0L)
timeMap[source] = System.currentTimeMillis()
res
}
if (lastRequest != 0L) {
delay(lastRequest + defaultDelay - System.currentTimeMillis())
}
}
}
@@ -0,0 +1,133 @@
package org.koitharu.kotatsu.dl.download
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.runInterruptible
import kotlinx.coroutines.sync.Mutex
import kotlinx.coroutines.sync.withLock
import okhttp3.internal.closeQuietly
import org.koitharu.kotatsu.parsers.model.Manga
import org.koitharu.kotatsu.parsers.model.MangaChapter
import org.koitharu.kotatsu.parsers.util.toFileNameSafe
import java.io.File
class LocalMangaDirOutput(
rootFile: File,
manga: Manga,
) : LocalMangaOutput(rootFile) {
private val chaptersOutput = HashMap<MangaChapter, ZipOutput>()
private val index = MangaIndex(File(rootFile, ENTRY_NAME_INDEX).takeIf{ it.exists() }?.readText())
private val mutex = Mutex()
init {
index.setMangaInfo(manga)
}
override suspend fun mergeWithExisting() = Unit
override suspend fun addCover(file: File, ext: String) = mutex.withLock {
val name = buildString {
append("cover")
if (ext.isNotEmpty() && ext.length <= 4) {
append('.')
append(ext)
}
}
runInterruptible(Dispatchers.IO) {
file.copyTo(File(rootFile, name), overwrite = true)
}
index.setCoverEntry(name)
flushIndex()
}
override suspend fun addPage(chapter: IndexedValue<MangaChapter>, file: File, pageNumber: Int, ext: String) =
mutex.withLock {
val output = chaptersOutput.getOrPut(chapter.value) {
ZipOutput(File(rootFile, chapterFileName(chapter) + SUFFIX_TMP))
}
val name = buildString {
append(FILENAME_PATTERN.format(chapter.value.branch.hashCode(), chapter.index + 1, pageNumber))
if (ext.isNotEmpty() && ext.length <= 4) {
append('.')
append(ext)
}
}
runInterruptible(Dispatchers.IO) {
output.put(name, file)
}
index.addChapter(chapter, chapterFileName(chapter))
}
override suspend fun flushChapter(chapter: MangaChapter): Boolean = mutex.withLock {
val output = chaptersOutput.remove(chapter) ?: return@withLock false
output.flushAndFinish()
flushIndex()
true
}
override suspend fun finish() = mutex.withLock {
flushIndex()
for (output in chaptersOutput.values) {
output.flushAndFinish()
}
chaptersOutput.clear()
}
override suspend fun cleanup() = mutex.withLock {
for (output in chaptersOutput.values) {
output.file.delete()
}
}
override fun close() {
for (output in chaptersOutput.values) {
output.closeQuietly()
}
}
fun setIndex(newIndex: MangaIndex) {
index.setFrom(newIndex)
}
private suspend fun ZipOutput.flushAndFinish() = runInterruptible(Dispatchers.IO) {
val e: Throwable? = try {
finish()
null
} catch (e: Throwable) {
e
} finally {
close()
}
if (e == null) {
val resFile = File(file.absolutePath.removeSuffix(SUFFIX_TMP))
file.renameTo(resFile)
} else {
file.delete()
throw e
}
}
private fun chapterFileName(chapter: IndexedValue<MangaChapter>): String {
index.getChapterFileName(chapter.value.id)?.let {
return it
}
val baseName = "${chapter.index}_${chapter.value.name.toFileNameSafe()}".take(32)
var i = 0
while (true) {
val name = (if (i == 0) baseName else baseName + "_$i") + ".cbz"
if (!File(rootFile, name).exists()) {
return name
}
i++
}
}
private suspend fun flushIndex() = runInterruptible(Dispatchers.IO) {
File(rootFile, ENTRY_NAME_INDEX).writeText(index.toString())
}
companion object {
private const val FILENAME_PATTERN = "%08d_%03d%03d"
}
}
@@ -0,0 +1,82 @@
package org.koitharu.kotatsu.dl.download
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.runInterruptible
import okio.Closeable
import org.koitharu.kotatsu.parsers.model.Manga
import org.koitharu.kotatsu.parsers.model.MangaChapter
import org.koitharu.kotatsu.parsers.util.toFileNameSafe
import java.io.File
sealed class LocalMangaOutput(
val rootFile: File,
) : Closeable {
abstract suspend fun mergeWithExisting()
abstract suspend fun addCover(file: File, ext: String)
abstract suspend fun addPage(chapter: IndexedValue<MangaChapter>, file: File, pageNumber: Int, ext: String)
abstract suspend fun flushChapter(chapter: MangaChapter): Boolean
abstract suspend fun finish()
abstract suspend fun cleanup()
companion object {
const val ENTRY_NAME_INDEX = "index.json"
const val SUFFIX_TMP = ".tmp"
suspend fun create(
target: File,
manga: Manga,
format: DownloadFormat?,
): LocalMangaOutput = runInterruptible(Dispatchers.IO) {
val targetFormat = format ?: if (manga.chapters.let { it != null && it.size <= 3 }) {
DownloadFormat.CBZ
} else {
DownloadFormat.DIR
}
var file = if (target.isDirectory || (!target.exists() && format == DownloadFormat.DIR)) {
if (!target.exists()) {
target.mkdirs()
}
val baseName = manga.title.toFileNameSafe()
when (targetFormat) {
DownloadFormat.CBZ -> File(target, "$baseName.cbz")
DownloadFormat.ZIP -> File(target, "$baseName.zip")
DownloadFormat.DIR -> File(target, baseName)
}
} else {
target.parentFile?.run {
if (!exists()) mkdirs()
}
target
}
getNextAvailable(file, manga)
}
private fun getNextAvailable(
file: File,
manga: Manga,
): LocalMangaOutput {
var i = 0
val baseName = file.nameWithoutExtension
val ext = file.extension.let { if (it.isNotEmpty()) ".$it" else "" }
while (true) {
val fileName = (if (i == 0) baseName else baseName + "_$i") + ext
val target = File(file.parentFile, fileName)
if (target.exists()) {
i++
} else {
return when {
target.isDirectory -> LocalMangaDirOutput(target, manga)
else -> LocalMangaZipOutput(target, manga)
}
}
}
}
}
}
@@ -0,0 +1,111 @@
package org.koitharu.kotatsu.dl.download
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.runInterruptible
import kotlinx.coroutines.sync.Mutex
import kotlinx.coroutines.sync.withLock
import org.koitharu.kotatsu.parsers.model.Manga
import org.koitharu.kotatsu.parsers.model.MangaChapter
import java.io.File
import java.util.zip.ZipFile
class LocalMangaZipOutput(
rootFile: File,
manga: Manga,
) : LocalMangaOutput(rootFile) {
private val output = ZipOutput(File(rootFile.path + ".tmp"))
private val index = MangaIndex(null)
private val mutex = Mutex()
init {
index.setMangaInfo(manga)
}
override suspend fun mergeWithExisting() = mutex.withLock {
if (rootFile.exists()) {
runInterruptible(Dispatchers.IO) {
mergeWith(rootFile)
}
}
}
override suspend fun addCover(file: File, ext: String) = mutex.withLock {
val name = buildString {
append(FILENAME_PATTERN.format(0, 0, 0))
if (ext.isNotEmpty() && ext.length <= 4) {
append('.')
append(ext)
}
}
runInterruptible(Dispatchers.IO) {
output.put(name, file)
}
index.setCoverEntry(name)
}
override suspend fun addPage(chapter: IndexedValue<MangaChapter>, file: File, pageNumber: Int, ext: String) =
mutex.withLock {
val name = buildString {
append(FILENAME_PATTERN.format(chapter.value.branch.hashCode(), chapter.index + 1, pageNumber))
if (ext.isNotEmpty() && ext.length <= 4) {
append('.')
append(ext)
}
}
runInterruptible(Dispatchers.IO) {
output.put(name, file)
}
index.addChapter(chapter, null)
}
override suspend fun flushChapter(chapter: MangaChapter): Boolean = false
override suspend fun finish() = mutex.withLock {
runInterruptible(Dispatchers.IO) {
output.use { output ->
output.put(ENTRY_NAME_INDEX, index.toString())
output.finish()
}
}
rootFile.delete()
output.file.renameTo(rootFile)
Unit
}
override suspend fun cleanup() = mutex.withLock {
output.file.delete()
Unit
}
override fun close() {
output.close()
}
private fun mergeWith(other: File) {
var otherIndex: MangaIndex? = null
ZipFile(other).use { zip ->
for (entry in zip.entries()) {
if (entry.name == ENTRY_NAME_INDEX) {
otherIndex = MangaIndex(
zip.getInputStream(entry).use {
it.reader().readText()
},
)
} else {
output.copyEntryFrom(zip, entry)
}
}
}
otherIndex?.getMangaInfo()?.chapters?.withIndex()?.let { chapters ->
for (chapter in chapters) {
index.addChapter(chapter, null)
}
}
}
private companion object {
const val FILENAME_PATTERN = "%08d_%03d%03d"
}
}
@@ -0,0 +1,177 @@
package org.koitharu.kotatsu.dl.download
import androidx.collection.MutableIntList
import kotlinx.coroutines.NonCancellable
import kotlinx.coroutines.delay
import kotlinx.coroutines.withContext
import me.tongfei.progressbar.ProgressBar
import me.tongfei.progressbar.ProgressBarBuilder
import me.tongfei.progressbar.ProgressBarStyle
import okhttp3.Request
import okhttp3.internal.closeQuietly
import okio.IOException
import okio.buffer
import okio.sink
import org.koitharu.kotatsu.dl.util.*
import org.koitharu.kotatsu.parsers.MangaLoaderContext
import org.koitharu.kotatsu.parsers.exception.TooManyRequestExceptions
import org.koitharu.kotatsu.parsers.model.Manga
import org.koitharu.kotatsu.parsers.model.MangaChapter
import org.koitharu.kotatsu.parsers.model.MangaParserSource
import org.koitharu.kotatsu.parsers.model.MangaSource
import org.koitharu.kotatsu.parsers.util.await
import org.koitharu.kotatsu.parsers.util.requireBody
import java.io.File
import java.nio.file.Files
import java.util.*
import kotlin.coroutines.cancellation.CancellationException
class MangaDownloader(
private val context: MangaLoaderContext,
private val manga: Manga,
private val chapters: List<MangaChapter>,
private val destination: File?,
private val chaptersRange: ChaptersRange,
private val format: DownloadFormat?,
private val throttle: Boolean,
) {
private val progressBarStyle = ProgressBarStyle.builder()
.rightBracket("]")
.leftBracket("[")
.colorCode(ColoredConsole.BRIGHT_YELLOW.toByte())
.block('#')
.build()
suspend fun download(): File {
val progressBar = ProgressBarBuilder()
.setStyle(progressBarStyle)
.setTaskName("Downloading")
.clearDisplayOnFinish()
.build()
progressBar.setExtraMessage("Preparing...")
val output = LocalMangaOutput.create(destination ?: File(""), manga, format)
val tempDir = Files.createTempDirectory("kdl_").toFile()
val counters = MutableIntList()
val totalChapters = chaptersRange.size(chapters)
try {
val parser = context.newParserInstance(manga.source as MangaParserSource)
val coverUrl = manga.largeCoverUrl.ifNullOrEmpty { manga.coverUrl }
if (coverUrl.isNotEmpty()) {
downloadFile(coverUrl, tempDir, parser.source).let { file ->
output.addCover(file, getFileExtensionFromUrl(coverUrl).orEmpty())
file.delete()
}
}
for (chapter in chapters.withIndex()) {
progressBar.setExtraMessage(chapter.value.name)
if (chapter.index !in chaptersRange) {
continue
}
val pages = runFailsafe(progressBar) { parser.getPages(chapter.value) }
counters.add(pages.size)
progressBar.maxHint(counters.sum().toLong() + (totalChapters - counters.size) * pages.size)
for ((pageIndex, page) in pages.withIndex()) {
runFailsafe(progressBar) {
val url = parser.getPageUrl(page)
val file = downloadFile(url, tempDir, parser.source)
output.addPage(
chapter = chapter,
file = file,
pageNumber = pageIndex,
ext = getFileExtensionFromUrl(url).orEmpty(),
)
progressBar.step()
if (file.extension == "tmp") {
file.delete()
}
}
}
output.flushChapter(chapter.value)
}
progressBar.setExtraMessage("Finalizing...")
output.mergeWithExisting()
output.finish()
progressBar.close()
return output.rootFile.canonicalFile
} catch (e: Throwable) {
progressBar.close()
throw e
} finally {
withContext(NonCancellable) {
output.cleanup()
output.closeQuietly()
tempDir.deleteRecursively()
}
}
}
private suspend fun <T> runFailsafe(progressBar: ProgressBar, block: suspend () -> T): T {
var countDown = MAX_FAILSAFE_ATTEMPTS
failsafe@ while (true) {
try {
return block()
} catch (e: IOException) {
val retryDelay = if (e is TooManyRequestExceptions) {
e.getRetryDelay()
} else {
DOWNLOAD_ERROR_DELAY
}
if (countDown <= 0 || retryDelay < 0 || retryDelay > MAX_RETRY_DELAY) {
throw e
} else {
countDown--
progressBar.pause()
try {
delay(retryDelay)
} finally {
progressBar.resume()
}
}
}
}
}
private suspend fun downloadFile(
url: String,
destination: File,
source: MangaSource,
): File {
if (throttle) {
slowdownDispatcher.delay(source)
}
val request = Request.Builder()
.url(url)
.get()
.header(CommonHeaders.ACCEPT, "image/webp,image/png;q=0.9,image/jpeg,*/*;q=0.8")
.cacheControl(CommonHeaders.CACHE_CONTROL_NO_STORE)
.tag(MangaSource::class.java, source)
.build()
return context.httpClient.newCall(request).await()
.ensureSuccess()
.use { response ->
val file = File(destination, UUID.randomUUID().toString() + ".tmp")
try {
response.requireBody().use { body ->
file.sink(append = false).buffer().use {
it.writeAll(body.source())
}
}
} catch (e: CancellationException) {
file.delete()
throw e
}
file
}
}
private companion object {
const val MAX_FAILSAFE_ATTEMPTS = 2
const val DOWNLOAD_ERROR_DELAY = 2_000L
const val MAX_RETRY_DELAY = 7_200_000L // 2 hours
private const val SLOWDOWN_DELAY = 500L
val slowdownDispatcher = DownloadSlowdownDispatcher(SLOWDOWN_DELAY)
}
}
@@ -0,0 +1,164 @@
package org.koitharu.kotatsu.dl.download
import org.json.JSONArray
import org.json.JSONObject
import org.koitharu.kotatsu.parsers.model.*
import org.koitharu.kotatsu.parsers.util.find
import org.koitharu.kotatsu.parsers.util.json.*
import org.koitharu.kotatsu.parsers.util.toTitleCase
import java.io.File
class MangaIndex(source: String?) {
private val json: JSONObject = source?.let(::JSONObject) ?: JSONObject()
fun setMangaInfo(manga: Manga) {
json.put("id", manga.id)
json.put("title", manga.title)
json.put("title_alt", manga.altTitle)
json.put("url", manga.url)
json.put("public_url", manga.publicUrl)
json.put("author", manga.author)
json.put("cover", manga.coverUrl)
json.put("description", manga.description)
json.put("rating", manga.rating)
json.put("nsfw", manga.isNsfw)
json.put("state", manga.state?.name)
json.put("source", manga.source.name)
json.put("cover_large", manga.largeCoverUrl)
json.put(
"tags",
JSONArray().also { a ->
for (tag in manga.tags) {
val jo = JSONObject()
jo.put("key", tag.key)
jo.put("title", tag.title)
a.put(jo)
}
},
)
if (!json.has("chapters")) {
json.put("chapters", JSONObject())
}
json.put("app_id", "kotatsu-dl")
json.put("app_version", "0.1")
}
fun getMangaInfo(): Manga? = if (json.length() == 0) null else runCatching {
val source = requireNotNull(MangaParserSource.entries.find(json.getString("source"))) {
"Invalid manga source "
}
Manga(
id = json.getLong("id"),
title = json.getString("title"),
altTitle = json.getStringOrNull("title_alt"),
url = json.getString("url"),
publicUrl = json.getStringOrNull("public_url").orEmpty(),
author = json.getStringOrNull("author"),
largeCoverUrl = json.getStringOrNull("cover_large"),
source = source,
rating = json.getDouble("rating").toFloat(),
isNsfw = json.getBooleanOrDefault("nsfw", false),
coverUrl = json.getString("cover"),
state = json.getStringOrNull("state")?.let { stateString ->
MangaState.entries.find(stateString)
},
description = json.getStringOrNull("description"),
tags = json.getJSONArray("tags").mapJSONToSet { x ->
MangaTag(
title = x.getString("title").toTitleCase(),
key = x.getString("key"),
source = source,
)
},
chapters = getChapters(json.getJSONObject("chapters"), source),
)
}.getOrNull()
fun getCoverEntry(): String? = json.getStringOrNull("cover_entry")
fun addChapter(chapter: IndexedValue<MangaChapter>, filename: String?) {
val chapters = json.getJSONObject("chapters")
if (!chapters.has(chapter.value.id.toString())) {
val jo = JSONObject()
jo.put("number", chapter.value.number)
jo.put("volume", chapter.value.volume)
jo.put("url", chapter.value.url)
jo.put("name", chapter.value.name)
jo.put("uploadDate", chapter.value.uploadDate)
jo.put("scanlator", chapter.value.scanlator)
jo.put("branch", chapter.value.branch)
jo.put("entries", "%08d_%03d\\d{3}".format(chapter.value.branch.hashCode(), chapter.index + 1))
jo.put("file", filename)
chapters.put(chapter.value.id.toString(), jo)
}
}
fun removeChapter(id: Long): Boolean {
return json.has("chapters") && json.getJSONObject("chapters").remove(id.toString()) != null
}
fun getChapterFileName(chapterId: Long): String? {
return json.optJSONObject("chapters")?.optJSONObject(chapterId.toString())?.getStringOrNull("file")
}
fun setCoverEntry(name: String) {
json.put("cover_entry", name)
}
fun getChapterNamesPattern(chapter: MangaChapter) = Regex(
json.getJSONObject("chapters")
.getJSONObject(chapter.id.toString())
.getString("entries"),
)
fun clear() {
val keys = json.keys()
while (keys.hasNext()) {
json.remove(keys.next())
}
}
fun setFrom(other: MangaIndex) {
clear()
other.json.keys().forEach { key ->
json.putOpt(key, other.json.opt(key))
}
}
private fun getChapters(json: JSONObject, source: MangaSource): List<MangaChapter> {
val chapters = ArrayList<MangaChapter>(json.length())
for (k in json.keys()) {
val v = json.getJSONObject(k)
chapters.add(
MangaChapter(
id = k.toLong(),
name = v.getString("name"),
url = v.getString("url"),
number = v.getFloatOrDefault("number", 0f),
volume = v.getIntOrDefault("volume", 0),
uploadDate = v.getLongOrDefault("uploadDate", 0L),
scanlator = v.getStringOrNull("scanlator"),
branch = v.getStringOrNull("branch"),
source = source,
),
)
}
return chapters.sortedBy { it.number }
}
override fun toString(): String = json.toString(4)
companion object {
fun read(file: File): MangaIndex? {
if (file.exists() && file.canRead()) {
val text = file.readText()
if (text.length > 2) {
return MangaIndex(text)
}
}
return null
}
}
}
@@ -0,0 +1,124 @@
package org.koitharu.kotatsu.dl.download
import okio.Closeable
import java.io.File
import java.io.FileInputStream
import java.nio.file.Files
import java.util.concurrent.atomic.AtomicBoolean
import java.util.zip.Deflater
import java.util.zip.ZipEntry
import java.util.zip.ZipFile
import java.util.zip.ZipOutputStream
import kotlin.io.path.name
class ZipOutput(
val file: File,
compressionLevel: Int = Deflater.DEFAULT_COMPRESSION,
) : Closeable {
private val entryNames = HashSet<String>()
private val isClosed = AtomicBoolean(false)
private val output = ZipOutputStream(file.outputStream()).apply {
setLevel(compressionLevel)
// FIXME: Deflater has been closed
}
fun put(name: String, file: File): Boolean {
return output.appendFile(file, name)
}
fun put(name: String, content: String): Boolean {
return output.appendText(content, name)
}
fun addDirectory(name: String): Boolean {
val entry = if (name.endsWith("/")) {
ZipEntry(name)
} else {
ZipEntry("$name/")
}
return if (entryNames.add(entry.name)) {
output.putNextEntry(entry)
output.closeEntry()
true
} else {
false
}
}
fun copyEntryFrom(other: ZipFile, entry: ZipEntry): Boolean {
return if (entryNames.add(entry.name)) {
val zipEntry = ZipEntry(entry.name)
output.putNextEntry(zipEntry)
try {
other.getInputStream(entry).use { input ->
input.copyTo(output)
}
} finally {
output.closeEntry()
}
true
} else {
false
}
}
fun finish() {
output.finish()
output.flush()
}
override fun close() {
if (isClosed.compareAndSet(false, true)) {
output.close()
}
}
private fun ZipOutputStream.appendFile(fileToZip: File, name: String): Boolean {
if (fileToZip.isDirectory) {
val entry = if (name.endsWith("/")) {
ZipEntry(name)
} else {
ZipEntry("$name/")
}
if (!entryNames.add(entry.name)) {
return false
}
putNextEntry(entry)
closeEntry()
Files.newDirectoryStream(fileToZip.toPath()).use {
it.forEach { childFile ->
appendFile(childFile.toFile(), "$name/${childFile.name}")
}
}
} else {
FileInputStream(fileToZip).use { fis ->
if (!entryNames.add(name)) {
return false
}
val zipEntry = ZipEntry(name)
putNextEntry(zipEntry)
try {
fis.copyTo(this)
} finally {
closeEntry()
}
}
}
return true
}
private fun ZipOutputStream.appendText(content: String, name: String): Boolean {
if (!entryNames.add(name)) {
return false
}
val zipEntry = ZipEntry(name)
putNextEntry(zipEntry)
try {
content.byteInputStream().copyTo(this)
} finally {
closeEntry()
}
return true
}
}
@@ -0,0 +1,35 @@
package org.koitharu.kotatsu.dl.parsers
import org.koitharu.kotatsu.parsers.bitmap.Bitmap
import org.koitharu.kotatsu.parsers.bitmap.Rect
import java.awt.image.BufferedImage
import java.io.ByteArrayOutputStream
import javax.imageio.ImageIO
class BitmapImpl(
val image: BufferedImage,
) : Bitmap {
override val width: Int
get() = image.width
override val height: Int
get() = image.height
override fun drawBitmap(
sourceBitmap: Bitmap,
src: Rect,
dst: Rect,
) {
val graphics = image.createGraphics()
val subImage = (sourceBitmap as BitmapImpl).image.getSubimage(
src.left, src.top, src.width, src.height,
)
graphics.drawImage(subImage, dst.left, dst.top, dst.width, dst.height, null)
graphics.dispose()
}
fun compress(format: String): ByteArray = ByteArrayOutputStream().also { stream ->
ImageIO.write(image, format, stream)
}.toByteArray()
}

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