Make T3 errors non-fatal

Signed-off-by: Graham <gpe@openrs2.org>
Graham 4 years ago
parent 593f46d9fd
commit 4e713b53f8
  1. 2
      patcher/src/main/kotlin/org/openrs2/patcher/PatcherModule.kt
  2. 102
      patcher/src/main/kotlin/org/openrs2/patcher/transform/InvalidKeyTransformer.kt

@ -10,6 +10,7 @@ import org.openrs2.patcher.transform.CachePathTransformer
import org.openrs2.patcher.transform.DomainTransformer import org.openrs2.patcher.transform.DomainTransformer
import org.openrs2.patcher.transform.HighDpiTransformer import org.openrs2.patcher.transform.HighDpiTransformer
import org.openrs2.patcher.transform.HostCheckTransformer import org.openrs2.patcher.transform.HostCheckTransformer
import org.openrs2.patcher.transform.InvalidKeyTransformer
import org.openrs2.patcher.transform.LoadLibraryTransformer import org.openrs2.patcher.transform.LoadLibraryTransformer
import org.openrs2.patcher.transform.MacResizeTransformer import org.openrs2.patcher.transform.MacResizeTransformer
import org.openrs2.patcher.transform.MemoryAllocationTransformer import org.openrs2.patcher.transform.MemoryAllocationTransformer
@ -38,5 +39,6 @@ public object PatcherModule : AbstractModule() {
binder.addBinding().to(RightClickTransformer::class.java) binder.addBinding().to(RightClickTransformer::class.java)
binder.addBinding().to(TypoTransformer::class.java) binder.addBinding().to(TypoTransformer::class.java)
binder.addBinding().to(HighDpiTransformer::class.java) binder.addBinding().to(HighDpiTransformer::class.java)
binder.addBinding().to(InvalidKeyTransformer::class.java)
} }
} }

@ -0,0 +1,102 @@
package org.openrs2.patcher.transform
import com.github.michaelbull.logging.InlineLogger
import org.objectweb.asm.Opcodes
import org.objectweb.asm.tree.ClassNode
import org.objectweb.asm.tree.FieldInsnNode
import org.objectweb.asm.tree.InsnList
import org.objectweb.asm.tree.InsnNode
import org.objectweb.asm.tree.IntInsnNode
import org.objectweb.asm.tree.JumpInsnNode
import org.objectweb.asm.tree.LdcInsnNode
import org.objectweb.asm.tree.MethodInsnNode
import org.objectweb.asm.tree.MethodNode
import org.objectweb.asm.tree.VarInsnNode
import org.openrs2.asm.InsnMatcher
import org.openrs2.asm.classpath.ClassPath
import org.openrs2.asm.classpath.Library
import org.openrs2.asm.transform.Transformer
import javax.inject.Singleton
@Singleton
public class InvalidKeyTransformer : Transformer() {
private var catchBlocks = 0
override fun preTransform(classPath: ClassPath) {
catchBlocks = 0
}
override fun transformCode(classPath: ClassPath, library: Library, clazz: ClassNode, method: MethodNode): Boolean {
for (match in MATCHER.match(method)) {
val ldc = if (match[8] is LdcInsnNode) {
match[8]
} else {
match[9]
} as LdcInsnNode
if (ldc.cst != "T3 - ") {
continue
}
val uncompressedStore = match[2] as VarInsnNode
val goto = match[3] as JumpInsnNode
val exLoad = match[5]
val invokeWrap = match[match.size - 2]
val exThrow = match[match.size - 1]
/*
* Replace:
*
* } catch (RuntimeException ex) {
* throw TracingException.wrap(ex, "T3 - " + ...);
* }
*
* with:
*
* } catch (RuntimeException ex) {
* System.out.println("T3 - " + ...);
* uncompressed = new byte[] { 0, 0, 0, 0, 1, 1 };
* }
*/
val list = InsnList()
list.add(FieldInsnNode(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"))
list.add(InsnNode(Opcodes.SWAP))
list.add(MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V"))
list.add(IntInsnNode(Opcodes.BIPUSH, 6))
list.add(IntInsnNode(Opcodes.NEWARRAY, Opcodes.T_BYTE))
list.add(InsnNode(Opcodes.DUP))
list.add(InsnNode(Opcodes.ICONST_0))
list.add(InsnNode(Opcodes.ICONST_0))
list.add(InsnNode(Opcodes.BASTORE))
list.add(VarInsnNode(Opcodes.ASTORE, uncompressedStore.`var`))
list.add(JumpInsnNode(Opcodes.GOTO, goto.label))
method.instructions.remove(exLoad)
method.instructions.insertBefore(invokeWrap, list)
method.instructions.remove(invokeWrap)
method.instructions.remove(exThrow)
catchBlocks++
}
return false
}
override fun postTransform(classPath: ClassPath) {
logger.info { "Made $catchBlocks invalid key catch blocks non-fatal" }
}
private companion object {
private val logger = InlineLogger()
private val MATCHER = InsnMatcher.compile(
"""
ALOAD INVOKESTATIC ASTORE GOTO ASTORE ALOAD NEW DUP INVOKESPECIAL? LDC .*? INVOKESTATIC ATHROW
""".trimIndent()
)
}
}
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