Logs: Java class version incompats

module-log-parser/src/main/kotlin/org/quiltmc/community/cozy/modules/logs/config/SimpleLogParserConfig.kt

@@ -16,6 +16,7 @@ import org.quiltmc.community.cozy.modules.logs.parsers.launchers.ATLauncherParse
 import org.quiltmc.community.cozy.modules.logs.parsers.launchers.MMCLikeParser
 import org.quiltmc.community.cozy.modules.logs.parsers.launchers.TechnicParser
 import org.quiltmc.community.cozy.modules.logs.parsers.quilt.QuiltModsParser
+import org.quiltmc.community.cozy.modules.logs.processors.JavaClassFileVersionProcessor
 import org.quiltmc.community.cozy.modules.logs.processors.MixinErrorProcessor
 import org.quiltmc.community.cozy.modules.logs.processors.PlayerIPProcessor
 import org.quiltmc.community.cozy.modules.logs.processors.UnknownModProcessor
@@ -55,6 +56,7 @@ public class SimpleLogParserConfig(private val builder: Builder) : LogParserConf
  public var processors: MutableList<LogProcessor> = mutableListOf(
  FabricImplProcessor(),
  IncompatibleModProcessor(),
+ JavaClassFileVersionProcessor(),
  MixinErrorProcessor(),
  PlayerIPProcessor(),
  QuiltLibrariesVersionProcessor(),

module-log-parser/src/main/kotlin/org/quiltmc/community/cozy/modules/logs/processors/JavaClassFileVersionProcessor.kt

@@ -0,0 +1,96 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package org.quiltmc.community.cozy.modules.logs.processors
+
+import dev.kord.core.event.Event
+import org.quiltmc.community.cozy.modules.logs.data.LoaderType
+import org.quiltmc.community.cozy.modules.logs.data.Log
+import org.quiltmc.community.cozy.modules.logs.data.Order
+import org.quiltmc.community.cozy.modules.logs.types.LogProcessor
+
+private val ERROR_REGEX = (
+ "has been compiled by a more recent version of the Java Runtime " +
+ "\\(class file version ([\\d\\.]+)\\), this version of the Java Runtime only recognizes class file versions " +
+ "up to ([\\d\\.]+)"
+ ).toRegex(RegexOption.IGNORE_CASE)
+
+// I'm not sure why it thinks these aren't constants, but okay...
+@Suppress("MagicNumber")
+private val VERSION_MAP = mutableMapOf(
+ 45 to "1.1",
+ 46 to "1.2",
+ 47 to "1.3",
+ 48 to "1.4",
+ 49 to "5",
+ 50 to "6",
+ 51 to "7",
+ 52 to "8",
+ 53 to "9",
+ 54 to "10",
+ 55 to "11",
+ 56 to "12",
+ 57 to "13",
+ 58 to "14",
+ 59 to "15",
+ 60 to "16",
+ 61 to "17",
+ 62 to "18",
+ 63 to "19",
+ 64 to "20",
+ 65 to "21",
+)
+
+public class JavaClassFileVersionProcessor : LogProcessor() {
+ override val identifier: String = "piracy"
+ override val order: Order = Order.Earlier
+
+ override suspend fun predicate(log: Log, event: Event): Boolean =
+ log.getLoaderVersion(LoaderType.Quilt) != null
+
+ override suspend fun process(log: Log) {
+ val matches = ERROR_REGEX.findAll(log.content).toList()
+
+ if (matches.isEmpty()) {
+ return
+ }
+
+ // Required -> Current
+ val versions = matches.map { it.groupValues[1].toInt() to it.groupValues[2].toInt() }
+ val currentClass = versions.first().second
+
+ var requiredClass: Int = 0
+
+ versions.forEach { requiredClass = maxOf(requiredClass, it.first) }
+
+ val current = VERSION_MAP[currentClass]
+ val required = VERSION_MAP[requiredClass]
+
+ log.addMessage(
+ buildString {
+ append("**It looks like you need to update Java.** ")
+
+ append(
+ if (current != null) {
+ "You have Java `$current` installed, "
+ } else {
+ "You have a version of Java that supports up to class version `$currentClass`, "
+ }
+ )
+
+ append(
+ if (required != null) {
+ "but you need Java `$required` or later."
+ } else {
+ "but you need a version of java that supports class version `$requiredClass` or later."
+ }
+ )
+ }
+ )
+
+ log.hasProblems = true
+ }
+}