Open-source multiplayer game server compatible with the RuneScape client
https://www.openrs2.org/
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52 lines
1.8 KiB
52 lines
1.8 KiB
package dev.openrs2.asm.io
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import dev.openrs2.asm.classpath.ClassPath
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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 dev.openrs2.util.io.useTempFile
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import org.objectweb.asm.tree.ClassNode
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import java.io.ByteArrayInputStream
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import java.io.ByteArrayOutputStream
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import java.io.InputStream
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import java.io.OutputStream
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import java.nio.file.Files
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import java.util.jar.JarInputStream
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import java.util.jar.Manifest
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public class SignedJarLibraryWriter(
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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(output: OutputStream, classPath: ClassPath, classes: Iterable<ClassNode>) {
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useTempFile(TEMP_PREFIX, JAR_SUFFIX) { unsignedJar ->
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Files.newOutputStream(unsignedJar).use { unsignedOutput ->
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ManifestJarLibraryWriter(manifest).write(unsignedOutput, classPath, classes)
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}
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ByteArrayOutputStream().use { signedOutput ->
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keyStore.signJar(unsignedJar, signedOutput)
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return ByteArrayInputStream(signedOutput.toByteArray()).use { signedInput ->
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repack(signedInput, output)
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}
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}
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}
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}
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private fun repack(input: InputStream, output: OutputStream) {
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JarInputStream(input).use { jarInput ->
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DeterministicJarOutputStream(output, jarInput.manifest).use { jarOutput ->
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for (entry in jarInput.entries) {
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jarOutput.putNextEntry(entry)
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jarInput.copyTo(jarOutput)
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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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