Open-source multiplayer game server compatible with the RuneScape client
https://www.openrs2.org/
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53 lines
1.7 KiB
53 lines
1.7 KiB
package dev.openrs2.asm.io
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import dev.openrs2.asm.classpath.ClassPath
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import dev.openrs2.asm.classpath.Library
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import dev.openrs2.crypto.Pkcs12KeyStore
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import dev.openrs2.util.io.DeterministicJarOutputStream
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import dev.openrs2.util.io.entries
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import java.io.OutputStream
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import java.nio.file.Files
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import java.nio.file.Path
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import java.util.jar.JarInputStream
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import java.util.jar.Manifest
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class SignedJarLibraryWriter(
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private val output: OutputStream,
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private val manifest: Manifest,
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private val keyStore: Pkcs12KeyStore
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) : LibraryWriter {
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override fun write(classPath: ClassPath, library: Library) {
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val unsignedJar = Files.createTempFile(TEMP_PREFIX, JAR_SUFFIX)
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try {
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DeterministicJarOutputStream(Files.newOutputStream(unsignedJar), manifest).use { unsignedOutput ->
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JarLibraryWriter(unsignedOutput).write(classPath, library)
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}
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val signedJar = Files.createTempFile(TEMP_PREFIX, JAR_SUFFIX)
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try {
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keyStore.signJar(unsignedJar, signedJar)
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repack(signedJar)
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} finally {
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Files.deleteIfExists(signedJar)
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}
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} finally {
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Files.deleteIfExists(unsignedJar)
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}
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}
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private fun repack(signedJar: Path) {
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JarInputStream(Files.newInputStream(signedJar)).use { input ->
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DeterministicJarOutputStream(output, input.manifest).use { output ->
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for (entry in input.entries) {
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output.putNextEntry(entry)
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input.copyTo(output)
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}
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}
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}
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}
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private companion object {
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private const val TEMP_PREFIX = "tmp"
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private const val JAR_SUFFIX = ".jar"
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}
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}
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