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More ReflectionManager stuff

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This commit is contained in:
riking 2014-06-14 22:38:16 -07:00
parent 3d64a132a9
commit 7c20a7c3a3
2 changed files with 95 additions and 131 deletions
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185
src/me/libraryaddict/disguise/utilities/ReflectionManager.java
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@ -7,15 +7,14 @@ import java.io.InputStreamReader;
import java.lang.reflect.Field; import java.lang.reflect.Field;
import java.lang.reflect.Method; import java.lang.reflect.Method;
import java.lang.reflect.Modifier; import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.HashMap; import java.util.HashMap;
import java.util.List;
import java.util.Map; import java.util.Map;
import java.util.UUID; import java.util.UUID;
import java.util.regex.Matcher; import java.util.regex.Matcher;
import java.util.regex.Pattern; import java.util.regex.Pattern;
import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableMap;
import me.libraryaddict.disguise.disguisetypes.DisguiseType;
import org.bukkit.Art; import org.bukkit.Art;
import org.bukkit.Bukkit; import org.bukkit.Bukkit;
import org.bukkit.Location; import org.bukkit.Location;
@ -76,36 +75,31 @@ public class ReflectionManager {
*/ */
private static Map<String, Map<String, String>> ForgeFieldMappings; private static Map<String, Map<String, String>> ForgeFieldMappings;
/** /**
* Map of Forge fully qualified class names to a map from mc-dev method names to Forge method names. * Map of Forge fully qualified class names to a map from mc-dev method names to a map from method signatures to Forge method names.
*
* There may be a mapping from null in the innermost map, which may be ignored.
*/ */
private static Map<String, Map<String, Map<Class<?>[], String>>> ForgeMethodMappings; private static Map<String, Map<String, Map<String, String>>> ForgeMethodMappings;
private static Map<String, Class<?>> primitiveTypes; private static Map<Class<?>, String> primitiveTypes;
private static Pattern signatureSegment;
static { static {
final String nameseg_class = "a-zA-Z0-9$_"; final String nameseg_class = "a-zA-Z0-9$_";
final String fqn_class = "a-zA-Z0-9$_/"; final String fqn_class = nameseg_class + "/";
final String fqn_component = "L[" + fqn_class + "]+;";
signatureSegment = Pattern.compile("\\[*(?:Z|B|C|S|I|J|F|D|V|" + fqn_component + ")"); primitiveTypes = ImmutableMap.<Class<?>, String>builder()
primitiveTypes = ImmutableMap.<String, Class<?>>builder() .put(boolean.class,"Z")
.put("Z", boolean.class) .put(byte.class, "B")
.put("B", byte.class) .put(char.class, "C")
.put("C", char.class) .put(short.class, "S")
.put("S", short.class) .put(int.class, "I")
.put("I", int.class) .put(long.class, "J")
.put("J", long.class) .put(float.class, "F")
.put("F", float.class) .put(double.class, "D")
.put("D", double.class) .put(void.class, "V").build();
.put("V", void.class).build();
if (isForge) { if (isForge) {
// Initialize the maps by reading the srg file // Initialize the maps by reading the srg file
ForgeClassMappings = new HashMap<String, String>(); ForgeClassMappings = new HashMap<String, String>();
ForgeFieldMappings = new HashMap<String, Map<String, String>>(); ForgeFieldMappings = new HashMap<String, Map<String, String>>();
ForgeMethodMappings = new HashMap<String, Map<String, Map<Class<?>[], String>>>(); ForgeMethodMappings = new HashMap<String, Map<String, Map<String, String>>>();
try { try {
InputStream stream = Class.forName("net.minecraftforge.common.MinecraftForge").getClassLoader() InputStream stream = Class.forName("net.minecraftforge.common.MinecraftForge").getClassLoader()
.getResourceAsStream("mappings/" + getBukkitVersion() + "/cb2numpkg.srg"); .getResourceAsStream("mappings/" + getBukkitVersion() + "/cb2numpkg.srg");
@ -153,49 +147,37 @@ public class ReflectionManager {
Matcher methodMatcher = methodPattern.matcher(line); Matcher methodMatcher = methodPattern.matcher(line);
if (methodMatcher.matches()) { if (methodMatcher.matches()) {
// get by CB class name // get by CB class name
Map<String, Map<Class<?>[], String>> middleMap = ForgeMethodMappings.get(dir2fqn(methodMatcher.group(5))); Map<String, Map<String, String>> middleMap = ForgeMethodMappings.get(dir2fqn(methodMatcher.group(5)));
if (middleMap == null) { if (middleMap == null) {
middleMap = new HashMap<String, Map<Class<?>[], String>>(); middleMap = new HashMap<String, Map<String, String>>();
ForgeMethodMappings.put(dir2fqn(methodMatcher.group(5)), middleMap); ForgeMethodMappings.put(dir2fqn(methodMatcher.group(5)), middleMap);
} }
// get by CB method name // get by CB method name
Map<Class<?>[], String> innerMap = middleMap.get(methodMatcher.group(2)); Map<String, String> innerMap = middleMap.get(methodMatcher.group(2));
if (innerMap == null) { if (innerMap == null) {
innerMap = new HashMap<Class<?>[], String>(); innerMap = new HashMap<String, String>();
middleMap.put(methodMatcher.group(2), innerMap); middleMap.put(methodMatcher.group(2), innerMap);
} }
// parse the class array // store the parameter strings
Class<?>[] argsCb = null, argsForge = null; innerMap.put(methodMatcher.group(3), methodMatcher.group(6));
try { innerMap.put(methodMatcher.group(7), methodMatcher.group(6));
argsCb = parseSignatureArguments(methodMatcher.group(3));
} catch (Throwable ignored) {
}
try {
argsForge = parseSignatureArguments(methodMatcher.group(7));
} catch (Throwable ignored) {
}
innerMap.put(argsCb, methodMatcher.group(6));
innerMap.put(argsForge, methodMatcher.group(6));
System.out.println(methodMatcher.group(5) + "/" + methodMatcher.group(2) + "(" + argsForge + ") -> " + methodMatcher.group(6));
continue;
} }
} }
System.out.println("[LibsDisguises] Loaded in Cauldron/Forge mode"); System.out.println("[LibsDisguises] Loaded in Cauldron/Forge mode");
System.out.println("[LibsDisguises]" + ForgeClassMappings.size() + " Cauldron class mappings loaded"); System.out.println("[LibsDisguises] Loaded " + ForgeClassMappings.size() + " Cauldron class mappings");
System.out.println("[LibsDisguises]" + ForgeFieldMappings.size() + " Cauldron field mappings loaded"); System.out.println("[LibsDisguises] Loaded " + ForgeFieldMappings.size() + " Cauldron field mappings");
System.out.println("[LibsDisguises]" + ForgeMethodMappings.size() + " Cauldron method mappings loaded"); System.out.println("[LibsDisguises] Loaded " + ForgeMethodMappings.size() + " Cauldron method mappings");
} catch (ClassNotFoundException e) { } catch (ClassNotFoundException e) {
e.printStackTrace(); e.printStackTrace();
System.err.println("Warning: Running on Cauldron server, but couldn't load mappings file"); System.err.println("Warning: Running on Cauldron server, but couldn't load mappings file. LibsDisguises will likely crash!");
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); e.printStackTrace();
System.err.println("Warning: Running on Cauldron server, but couldn't load mappings file"); System.err.println("Warning: Running on Cauldron server, but couldn't load mappings file. LibsDisguises will likely crash!");
} }
} }
} }
private static final Class craftItemClass; private static final Class<?> craftItemClass;
private static final Field pingField; private static final Field pingField;
private static final Field trackerField; private static final Field trackerField;
private static final Field entitiesField; private static final Field entitiesField;
@ -224,36 +206,17 @@ public class ReflectionManager {
trackerField = getNmsField("WorldServer", "tracker"); trackerField = getNmsField("WorldServer", "tracker");
entitiesField = getNmsField("EntityTracker", "trackedEntities"); entitiesField = getNmsField("EntityTracker", "trackedEntities");
ihmGet = getNmsMethod("IntHashMap", "get", int.class); ihmGet = getNmsMethod("IntHashMap", "get", int.class);
Method m = getNmsMethod("Item", "getItemOf", getNmsClass("Block"));
System.out.println(m);
DisguiseType.ARROW.isMisc();
} }
private static String dir2fqn(String s) { private static String dir2fqn(String s) {
return s.replaceAll("/", "."); return s.replaceAll("/", ".");
} }
public static Class<?>[] parseSignatureArguments(String args) throws ClassNotFoundException {
List<Class<?>> classes = new ArrayList<Class<?>>();
Matcher matcher = signatureSegment.matcher(args);
while (matcher.find()) {
classes.add(parseClass(matcher.group()));
}
return classes.toArray(new Class<?>[classes.size()]);
}
private static Class<?> parseClass(String str) throws ClassNotFoundException {
if (str.startsWith("[")) {
// Array
// http://stackoverflow.com/a/4901192/1210278
return java.lang.reflect.Array.newInstance(parseClass(str.substring(1)), 0).getClass();
} else if (str.length() == 1) {
return primitiveTypes.get(str);
} else if (str.startsWith("L")) {
// Chop off L and ;
return Class.forName(str.substring(1, str.length() - 1));
} else {
throw new ClassNotFoundException("Malformed method signature fragment? Argument: " + str);
}
}
// === // ===
public static Object createEntityInstance(String entityName) { public static Object createEntityInstance(String entityName) {
@ -327,7 +290,7 @@ public class ReflectionManager {
public static Entity getBukkitEntity(Object nmsEntity) { public static Entity getBukkitEntity(Object nmsEntity) {
try { try {
return (Entity) ReflectionManager.getNmsClass("Entity").getMethod("getBukkitEntity").invoke(nmsEntity); return (Entity) getNmsMethod("Entity", "getBukkitEntity").invoke(nmsEntity);
} catch (Exception ex) { } catch (Exception ex) {
ex.printStackTrace(); ex.printStackTrace();
} }
@ -347,7 +310,7 @@ public class ReflectionManager {
return bukkitVersion; return bukkitVersion;
} }
public static Class getCraftClass(String className) { public static Class<?> getCraftClass(String className) {
try { try {
return Class.forName("org.bukkit.craftbukkit." + getBukkitVersion() + "." + className); return Class.forName("org.bukkit.craftbukkit." + getBukkitVersion() + "." + className);
} catch (Exception e) { } catch (Exception e) {
@ -358,8 +321,7 @@ public class ReflectionManager {
public static String getCraftSound(Sound sound) { public static String getCraftSound(Sound sound) {
try { try {
Class c = getCraftClass("CraftSound"); return (String) getCraftClass("CraftSound").getMethod("getSound", Sound.class).invoke(null, sound);
return (String) c.getMethod("getSound", Sound.class).invoke(null, sound);
} catch (Exception ex) { } catch (Exception ex) {
ex.printStackTrace(); ex.printStackTrace();
} }
@ -368,8 +330,7 @@ public class ReflectionManager {
public static String getEnumArt(Art art) { public static String getEnumArt(Art art) {
try { try {
Class craftArt = Class.forName("org.bukkit.craftbukkit." + getBukkitVersion() + ".CraftArt"); Object enumArt = getCraftClass("CraftArt").getMethod("BukkitToNotch", Art.class).invoke(null, art);
Object enumArt = craftArt.getMethod("BukkitToNotch", Art.class).invoke(null, art);
for (Field field : enumArt.getClass().getFields()) { for (Field field : enumArt.getClass().getFields()) {
if (field.getType() == String.class) { if (field.getType() == String.class) {
return (String) field.get(enumArt); return (String) field.get(enumArt);
@ -416,15 +377,17 @@ public class ReflectionManager {
} }
public static Class getNmsClass(String className) { public static Class getNmsClass(String className) {
try {
if (isForge) { if (isForge) {
String forgeName = ForgeClassMappings.get(className); String forgeName = ForgeClassMappings.get(className);
if (forgeName == null) { if (forgeName != null) {
try {
return Class.forName(forgeName);
} catch (ClassNotFoundException ignored) {
}
} else
throw new RuntimeException("Missing Forge mapping for " + className); throw new RuntimeException("Missing Forge mapping for " + className);
} }
return Class.forName(forgeName); try {
}
return Class.forName("net.minecraft.server." + getBukkitVersion() + "." + className); return Class.forName("net.minecraft.server." + getBukkitVersion() + "." + className);
} catch (Exception e) { } catch (Exception e) {
e.printStackTrace(); e.printStackTrace();
@ -455,14 +418,21 @@ public class ReflectionManager {
} }
public static Field getNmsField(Class clazz, String fieldName) { public static Field getNmsField(Class clazz, String fieldName) {
try {
if (isForge) { if (isForge) {
Map<String, String> fieldMap = ForgeFieldMappings.get(clazz.getName()); Map<String, String> fieldMap = ForgeFieldMappings.get(clazz.getName());
if (fieldMap == null) { throw new RuntimeException("No field mappings for " + clazz.getName()); } if (fieldMap != null) {
String forgeName = fieldMap.get(fieldName); String forgeName = fieldMap.get(fieldName);
if (forgeName == null) { throw new RuntimeException("No field mapping for " + clazz.getName() + "." + fieldName); } if (forgeName != null) {
try {
return clazz.getField(forgeName); return clazz.getField(forgeName);
} catch (NoSuchFieldException ignored) {
} }
} else
throw new RuntimeException("No field mapping for " + clazz.getName() + "." + fieldName);
} else
throw new RuntimeException("No field mappings for " + clazz.getName());
}
try {
return clazz.getField(fieldName); return clazz.getField(fieldName);
} catch (NoSuchFieldException e) { } catch (NoSuchFieldException e) {
e.printStackTrace(); e.printStackTrace();
@ -474,17 +444,40 @@ public class ReflectionManager {
return getNmsMethod(getNmsClass(className), methodName, parameters); return getNmsMethod(getNmsClass(className), methodName, parameters);
} }
public static Method getNmsMethod(Class<?> clazz, String methodName, Class<?>... parameters) { private static String methodSignaturePart(Class<?> param) {
try { if (param.isArray()) {
if (isForge) { return "[" + methodSignaturePart(param.getComponentType());
Map<String, Map<Class<?>[], String>> middleMap = ForgeMethodMappings.get(clazz.getName()); } else if (param.isPrimitive()) {
if (middleMap == null) { throw new RuntimeException("No method mappings for " + clazz.getName()); } return primitiveTypes.get(param);
Map<Class<?>[], String> innerMap = middleMap.get(methodName); } else {
if (innerMap == null) { throw new RuntimeException("No method mapping for " + clazz.getName() + "." + methodName); } return "L" + param.getName().replaceAll("\\.", "/") + ";";
String trName = innerMap.get(parameters);
if (trName == null) { throw new RuntimeException("No method mapping for " + clazz.getName() + "." + methodName + "(" + parameters + ")"); }
return clazz.getMethod(trName, parameters);
} }
}
public static Method getNmsMethod(Class<?> clazz, String methodName, Class<?>... parameters) {
if (isForge) {
Map<String, Map<String, String>> middleMap = ForgeMethodMappings.get(clazz.getName());
if (middleMap != null) {
Map<String, String> innerMap = middleMap.get(methodName);
if (innerMap != null) {
StringBuilder sb = new StringBuilder();
for (Class<?> cl : parameters) {
sb.append(methodSignaturePart(cl));
}
String trName = innerMap.get(sb.toString());
if (trName != null) {
try {
return clazz.getMethod(trName, parameters);
} catch (NoSuchMethodException ignored) {
}
} else
throw new RuntimeException("No method mapping for " + clazz.getName() + "." + methodName + "(" + sb.toString() + ")");
} else
throw new RuntimeException("No method mapping for " + clazz.getName() + "." + methodName);
} else
throw new RuntimeException("No method mappings for " + clazz.getName());
}
try {
return clazz.getMethod(methodName, parameters); return clazz.getMethod(methodName, parameters);
} catch (NoSuchMethodException e) { } catch (NoSuchMethodException e) {
e.printStackTrace(); e.printStackTrace();
@ -550,7 +543,7 @@ public class ReflectionManager {
public static WrappedGameProfile grabProfileAddUUID(String playername) { public static WrappedGameProfile grabProfileAddUUID(String playername) {
try { try {
Object minecraftServer = getNmsClass("MinecraftServer").getMethod("getServer").invoke(null); Object minecraftServer = getNmsMethod("MinecraftServer", "getServer").invoke(null);
for (Method method : getNmsClass("MinecraftServer").getMethods()) { for (Method method : getNmsClass("MinecraftServer").getMethods()) {
if (method.getReturnType().getSimpleName().equals("GameProfileRepository")) { if (method.getReturnType().getSimpleName().equals("GameProfileRepository")) {
Object profileRepo = method.invoke(minecraftServer); Object profileRepo = method.invoke(minecraftServer);

29
test/me/libraryaddict/disguise/utilities/ReflectionManagerTests.java
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@ -1,29 +0,0 @@
package me.libraryaddict.disguise.utilities;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class ReflectionManagerTests {
@Test
public void testParseSignatureArguments() throws Exception {
Class<?>[] expect, actual;
expect = new Class<?>[] {boolean.class, byte.class, char.class, short.class, int.class, long.class, float.class, double.class};
actual = ReflectionManager.parseSignatureArguments("ZBCSIJFD");
assertEquals(expect, actual);
expect = new Class<?>[] {int.class, String[].class, int.class, String.class};
actual = ReflectionManager.parseSignatureArguments("I[Ljava/lang/String;ILjava/lang/String;");
assertEquals(expect, actual);
expect = new Class<?>[] {};
actual = ReflectionManager.parseSignatureArguments("");
assertEquals(expect, actual);
expect = new Class<?>[] {boolean[][][][][][].class};
actual = ReflectionManager.parseSignatureArguments("[[[[[[Z");
assertEquals(expect, actual);
}
}