SpigotMC/LibsDisguises
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Don't fatal error if someone's using a dumb jar system

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This commit is contained in:
libraryaddict
2020-02-23 10:54:09 +13:00
parent 1cb9c0ee4a
commit 7f3aa75c44
4 changed files with 43 additions and 19 deletions
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36
src/main/java/me/libraryaddict/disguise/utilities/reflection/asm/WatcherSanitizer.java
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@@ -24,9 +24,6 @@ public class WatcherSanitizer {
public static void checkPreLoaded() throws NoSuchFieldException, IllegalAccessException {
JavaPluginLoader javaLoader = (JavaPluginLoader) LibsDisguises.getInstance().getPluginLoader();
Field cM = JavaPluginLoader.class.getDeclaredField("classes");
cM.setAccessible(true);
Map<String, Class<?>> classes = (Map<String, Class<?>>) cM.get(javaLoader);
Field lM = JavaPluginLoader.class.getDeclaredField("loaders");
lM.setAccessible(true);
List loaders = (List) lM.get(javaLoader);
@@ -38,15 +35,9 @@ public class WatcherSanitizer {
for (Object loader : loaders) {
Map<String, Class<?>> lClasses = (Map<String, Class<?>>) lF.get(loader);
PluginDescriptionFile desc = (PluginDescriptionFile) dF.get(loader);
for (Class c : lClasses.values()) {
if (!c.getName().startsWith("me.libraryaddict.disguise.disguisetypes.watchers.") &&
!c.getName().equals("me.libraryaddict.disguise.disguisetypes.FlagWatcher")) {
continue;
}
PluginDescriptionFile desc = (PluginDescriptionFile) dF.get(loader);
if (hasWatcher(lClasses)) {
LibsDisguises.getInstance().getLogger().severe(desc.getFullName() +
" has been a naughty plugin, they're declaring access to the disguise watchers before Lib's " +
"Disguises can properly load them! They should add 'LibsDisguises' to the 'depend' section of" +
@@ -54,6 +45,29 @@ public class WatcherSanitizer {
break;
}
}
Field cM = JavaPluginLoader.class.getDeclaredField("classes");
cM.setAccessible(true);
Map<String, Class<?>> classes = (Map<String, Class<?>>) cM.get(javaLoader);
if (hasWatcher(classes)) {
LibsDisguises.getInstance().getLogger()
.severe("Somehow the main server has a Watcher instance! Hopefully there was a plugin mentioned " +
"above! This is a bug!");
}
}
private static boolean hasWatcher(Map<String, Class<?>> classes) {
for (Class c : classes.values()) {
if (!c.getName().startsWith("me.libraryaddict.disguise.disguisetypes.watchers.") &&
!c.getName().equals("me.libraryaddict.disguise.disguisetypes.FlagWatcher")) {
continue;
}
return true;
}
return false;
}
public static void init() {