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Prepare to parse the method searge statements

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This commit is contained in:
riking 2014-06-14 19:30:47 -07:00
parent 4ddded6b06
commit 0c84316121
5 changed files with 109 additions and 9 deletions
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7
pom.xml
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@ -7,6 +7,7 @@
<build>
<sourceDirectory>src</sourceDirectory>
<testSourceDirectory>test</testSourceDirectory>
<defaultGoal>clean package</defaultGoal>
<directory>target</directory>
<finalName>LibsDisguises</finalName>
@ -90,6 +91,12 @@
<artifactId>spigot</artifactId>
<version>1.7.8-R0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<distributionManagement>

2
src/me/libraryaddict/disguise/utilities/DisguiseUtilities.java
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@ -631,7 +631,7 @@ public class DisguiseUtilities {
}
int fakeId = selfDisguisesIds.get(player.getUniqueId());
// Add himself to his own entity tracker
((HashSet<?>) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers").get(entityTrackerEntry)).add(ReflectionManager.getNmsEntity(player));
((HashSet<Object>) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers").get(entityTrackerEntry)).add(ReflectionManager.getNmsEntity(player));
ProtocolManager manager = ProtocolLibrary.getProtocolManager();
// Send the player a packet with himself being spawned
manager.sendServerPacket(player, manager.createPacketConstructor(PacketType.Play.Server.NAMED_ENTITY_SPAWN, player)

1
src/me/libraryaddict/disguise/utilities/PacketsManager.java
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@ -530,6 +530,7 @@ public class PacketsManager {
Object obj = null;
if (entity instanceof LivingEntity) {
try {
// Use reflection so that this works for either int or double methods
obj = LivingEntity.class.getMethod("getHealth").invoke(entity);
if (obj instanceof Double ? (Double) obj == 0 : (Integer) obj == 0) {
soundType = SoundType.DEATH;

76
src/me/libraryaddict/disguise/utilities/ReflectionManager.java
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@ -1,15 +1,21 @@
package me.libraryaddict.disguise.utilities;
import java.io.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.google.common.collect.ImmutableMap;
import org.bukkit.Art;
import org.bukkit.Bukkit;
import org.bukkit.Location;
@ -81,11 +87,26 @@ public class ReflectionManager {
*/
private static Map<String, Map<String, Map<Class<?>[], String>>> ForgeMethodMappings;
private static String dir2fqn(String s) {
return s.replaceAll("/", ".");
}
private static Map<String, Class<?>> primitiveTypes;
private static Pattern signatureSegment;
static {
final String nameseg_class = "a-zA-Z0-9$_";
final String fqn_class = "a-zA-Z0-9$_/";
final String fqn_component = "L[" + fqn_class + "]+;";
signatureSegment = Pattern.compile("\\[*(?:Z|B|C|S|I|J|F|D|V|" + fqn_component + ")");
primitiveTypes = ImmutableMap.<String, Class<?>>builder()
.put("Z", boolean.class)
.put("B", byte.class)
.put("C", char.class)
.put("S", short.class)
.put("I", int.class)
.put("J", long.class)
.put("F", float.class)
.put("D", double.class)
.put("V", void.class).build();
if (isForge) {
// Initialize the maps by reading the srg file
ForgeClassMappings = new HashMap<String, String>();
@ -95,16 +116,25 @@ public class ReflectionManager {
InputStream stream = Class.forName("net.minecraftforge.common.MinecraftForge").getClassLoader()
.getResourceAsStream("mappings/" + getBukkitVersion() + "/cb2numpkg.srg");
BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
// 1: cb-simpleName
// 2: forge-fullName (Needs dir2fqn())
Pattern classPattern = Pattern.compile("^CL: net/minecraft/server/(\\w+) ([a-zA-Z0-9$/_]+)$");
Pattern classPattern = Pattern.compile("^CL: net/minecraft/server/([" + nameseg_class + "]+) ([" + fqn_class + "]+)$");
// 1: cb-simpleName
// 2: cb-fieldName
// 3: forge-fullName (Needs dir2fqn())
// 4: forge-fieldName
Pattern fieldPattern = Pattern.compile("^FD: net/minecraft/server/(\\w+)/(\\w+) ([a-zA-Z0-9$/_]+)/([a-zA-Z0-9$/_]+)$");
Pattern methodPattern = Pattern.compile("!XXX todo");
Pattern fieldPattern = Pattern.compile("^FD: net/minecraft/server/([" + nameseg_class + "]+)/([" + nameseg_class + "]+) ([" + fqn_class + "]+)/([" + nameseg_class + "]+)$");
// 1: cb-simpleName
// 2: cb-methodName
// 3: cb-signature-args
// 4: cb-signature-ret
// 5: forge-fullName (Needs dir2fqn())
// 6: forge-methodName
// 7: forge-signature-args
// 8: forge-signature-ret
Pattern methodPattern = Pattern.compile("^MD: net/minecraft/server/([" + fqn_class + "]+)/([" + nameseg_class + "]+) \\(([;\\[" + fqn_class + "]*)\\)([;\\[" + fqn_class + "]+) " +
"([" + fqn_class + "]+)/([" + nameseg_class + "]+) \\(([;\\[" + fqn_class + "]*)\\)([;\\[" + fqn_class + "]+)$");
String line;
System.out.println("Reading");
@ -162,6 +192,36 @@ public class ReflectionManager {
}
}
private static String dir2fqn(String s) {
return s.replaceAll("/", ".");
}
public static List<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;
}
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) {
try {
Class<?> entityClass = getNmsClass("Entity" + entityName);

32
test/me/libraryaddict/disguise/utilities/ReflectionManagerTests.java Normal file
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@ -0,0 +1,32 @@
package me.libraryaddict.disguise.utilities;
import com.google.common.collect.ImmutableList;
import org.junit.Test;
import java.util.List;
import static org.junit.Assert.*;
public class ReflectionManagerTests {
@Test
public void testParseSignatureArguments() throws Exception {
List<Class<?>> expect, actual;
expect = ImmutableList.<Class<?>>of(boolean.class, byte.class, char.class, short.class, int.class, long.class, float.class, double.class);
actual = ReflectionManager.parseSignatureArguments("ZBCSIJFD");
assertEquals(expect, actual);
expect = ImmutableList.<Class<?>>of(int.class, String[].class, int.class);
actual = ReflectionManager.parseSignatureArguments("I[Ljava/lang/String;I");
assertEquals(expect, actual);
expect = ImmutableList.<Class<?>>of();
actual = ReflectionManager.parseSignatureArguments("");
assertEquals(expect, actual);
expect = ImmutableList.<Class<?>>of(boolean[][][][][][].class);
actual = ReflectionManager.parseSignatureArguments("[[[[[[Z");
assertEquals(expect, actual);
}
}