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Merge branch 'feature/mapper-library' into dev

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zaaarf 2024-05-31 14:49:53 +02:00
commit 8d26063266
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11 changed files with 164 additions and 414 deletions
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5
build.gradle
View file

@ -4,7 +4,7 @@ plugins {
}
archivesBaseName = 'processor'
version = gitVersion().split('-').getAt(0).replace('dirty', '')
version = versionDetails().lastTag
java {
sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
@ -27,5 +27,6 @@ repositories {
dependencies {
implementation 'com.squareup:javapoet:1.13.0'
implementation 'org.ow2.asm:asm-commons:9.5'
implementation 'ftbsc:lll:0.4.1'
implementation 'ftbsc:lll:0.5.0'
implementation 'ftbsc.lll:mapper:0.3.0'
}

27
src/main/java/ftbsc/lll/exceptions/MappingNotFoundException.java
View file

@ -1,27 +0,0 @@
package ftbsc.lll.exceptions;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
/**
* Thrown upon failure to find the requested mapping within a loaded {@link ObfuscationMapper}.
*/
public class MappingNotFoundException extends RuntimeException {
/**
* Constructs a new mapping not found exception for the specified mapping.
* @param mapping the relevant mapping
*/
public MappingNotFoundException(String mapping) {
super(String.format("Could not find mapping for %s!", mapping));
}
/**
* Constructs a new mapping not found exception for the specified mapping
* with the specified reason.
* @param mapping the relevant mapping
* @param reason the reason message
*/
public MappingNotFoundException(String mapping, String reason) {
this(mapping + ": " + reason);
}
}

59
src/main/java/ftbsc/lll/processor/LilleroProcessor.java
View file

@ -8,10 +8,9 @@ import ftbsc.lll.IInjector;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.exceptions.OrphanElementException;
import ftbsc.lll.processor.annotations.*;
import ftbsc.lll.processor.tools.ProcessorOptions;
import ftbsc.lll.processor.tools.containers.ClassContainer;
import ftbsc.lll.processor.tools.containers.InjectorInfo;
import ftbsc.lll.processor.tools.containers.MethodContainer;
import ftbsc.lll.processor.containers.ClassContainer;
import ftbsc.lll.processor.containers.InjectorInfo;
import ftbsc.lll.processor.containers.MethodContainer;
import ftbsc.lll.proxies.ProxyType;
import ftbsc.lll.proxies.impl.TypeProxy;
@ -29,8 +28,8 @@ import java.io.PrintWriter;
import java.util.*;
import java.util.stream.Collectors;
import static ftbsc.lll.processor.tools.ASTUtils.*;
import static ftbsc.lll.processor.tools.JavaPoetUtils.*;
import static ftbsc.lll.processor.utils.ASTUtils.*;
import static ftbsc.lll.processor.utils.JavaPoetUtils.*;
/**
* The actual annotation processor behind the magic.
@ -48,7 +47,7 @@ public class LilleroProcessor extends AbstractProcessor {
/**
* An object representing the various options passed to the processor.
*/
public final ProcessorOptions options = new ProcessorOptions(processingEnv);
private ProcessorOptions options = null;
/**
* Method overriding default implementation to manually pass supported options.
@ -59,6 +58,16 @@ public class LilleroProcessor extends AbstractProcessor {
return ProcessorOptions.SUPPORTED;
}
/**
* Returns the {@link ProcessorOptions} for this instance, creating the object if
* it hasn't been already.
* @return the {@link ProcessorOptions} for this instance
*/
public ProcessorOptions getProcessorOptions() {
if(this.options == null) this.options = new ProcessorOptions(this.processingEnv);
return this.options;
}
/**
* Where the actual processing happens.
* It filters through whatever annotated class it's fed, and checks whether it contains
@ -90,7 +99,7 @@ public class LilleroProcessor extends AbstractProcessor {
}
}
}
if (!this.options.noServiceProvider && !this.injectors.isEmpty()) {
if (!this.getProcessorOptions().noServiceProvider && !this.injectors.isEmpty()) {
generateServiceProvider();
return true;
} else return false;
@ -134,7 +143,7 @@ public class LilleroProcessor extends AbstractProcessor {
//find class information
Patch patchAnn = cl.getAnnotation(Patch.class);
ClassContainer targetClass = ClassContainer.from(
patchAnn, Patch::value, patchAnn.innerName(), this.options
patchAnn, Patch::value, patchAnn.innerName(), this.getProcessorOptions()
);
//find package information
Element packageElement = cl.getEnclosingElement();
@ -156,7 +165,7 @@ public class LilleroProcessor extends AbstractProcessor {
//take care of TypeProxies and FieldProxies first
for(VariableElement proxyVar : finders) {
ProxyType type = getProxyType(proxyVar);
if(type == ProxyType.METHOD && proxyVar.getAnnotation(Find.class).name().equals("")) {
if(type == ProxyType.METHOD && proxyVar.getAnnotation(Find.class).name().isEmpty()) {
//methods without a specified name will be handled later
methodFinders.add(proxyVar);
continue;
@ -165,17 +174,17 @@ public class LilleroProcessor extends AbstractProcessor {
if(type == ProxyType.TYPE) {
//find and validate
ClassContainer clazz = ClassContainer.findOrFallback(
ClassContainer.from(cl, this.options),
ClassContainer.from(cl, this.getProcessorOptions()),
patchAnn,
proxyVar.getAnnotation(Find.class),
this.options
this.getProcessorOptions()
);
//types can be generated with a single instruction
constructorBuilder.addStatement(
"super.$L = $T.from($S, 0, $L)",
proxyVar.getSimpleName().toString(),
TypeProxy.class,
clazz.fqnObf, //use obf name, at runtime it will be obfuscated
clazz.data.nameMapped.replace('/', '.'), //use obf name, at runtime it will be obfuscated
clazz.elem == null ? 0 : mapModifiers(clazz.elem.getModifiers())
);
} else if(type == ProxyType.FIELD)
@ -184,7 +193,7 @@ public class LilleroProcessor extends AbstractProcessor {
null,
null,
constructorBuilder,
this.options
this.getProcessorOptions()
);
}
@ -215,11 +224,11 @@ public class LilleroProcessor extends AbstractProcessor {
.collect(Collectors.toList());
//throw exception if user is a moron and defined a finder and an injector with the same name
if(finderCandidates.size() != 0 && injectorCandidates.size() != 0)
if(!finderCandidates.isEmpty() && !injectorCandidates.isEmpty())
throw new AmbiguousDefinitionException(
String.format("Target specified user %s, but name was used by both a finder and injector.", targetAnn.of())
);
else if(finderCandidates.size() == 0 && injectorCandidates.size() == 0)
else if(finderCandidates.isEmpty() && injectorCandidates.isEmpty())
processingEnv.getMessager().printMessage(Diagnostic.Kind.WARNING,
String.format(
"Found orphan @Target annotation on method %s.%s pointing at method %s, it will be ignored!",
@ -228,11 +237,11 @@ public class LilleroProcessor extends AbstractProcessor {
targetAnn.of()
)
);
else if(finderCandidates.size() == 0 && injectorCandidates.size() != 1)
else if(finderCandidates.isEmpty() && injectorCandidates.size() != 1)
throw new AmbiguousDefinitionException(
String.format("Found multiple candidate injectors for target %s::%s!", cl.getSimpleName(), tg.getSimpleName())
);
else if(injectorCandidates.size() == 0 && finderCandidates.size() != 1)
else if(injectorCandidates.isEmpty() && finderCandidates.size() != 1)
throw new AmbiguousDefinitionException(
String.format("Found multiple candidate finders for target %s::%s!", cl.getSimpleName(), tg.getSimpleName())
);
@ -243,7 +252,7 @@ public class LilleroProcessor extends AbstractProcessor {
matchedInjectors.add(injector);
toGenerate.put(
String.format("%sInjector%d", cl.getSimpleName(), iterationNumber),
new InjectorInfo(injector, tg, targetAnn, this.options)
new InjectorInfo(injector, tg, targetAnn, this.getProcessorOptions())
);
iterationNumber++; //increment is only used by injectors
} else {
@ -255,7 +264,7 @@ public class LilleroProcessor extends AbstractProcessor {
tg,
targetAnn,
constructorBuilder,
this.options
this.getProcessorOptions()
);
}
}
@ -280,9 +289,13 @@ public class LilleroProcessor extends AbstractProcessor {
.addMethod(constructorBuilder.build())
.addMethod(buildStringReturnMethod("name", injName))
.addMethod(buildStringReturnMethod("reason", toGenerate.get(injName).reason))
.addMethod(buildStringReturnMethod("targetClass", this.options.obfuscateInjectorMetadata ? targetClass.fqnObf : targetClass.fqn))
.addMethod(buildStringReturnMethod("methodName", this.options.obfuscateInjectorMetadata ? target.nameObf : target.name))
.addMethod(buildStringReturnMethod("methodDesc", this.options.obfuscateInjectorMetadata ? target.descriptorObf : target.descriptor))
.addMethod(buildStringReturnMethod("targetClass", this.getProcessorOptions().obfuscateInjectorMetadata
? targetClass.data.nameMapped.replace('/', '.')
: targetClass.data.name.replace('/', '.')))
.addMethod(buildStringReturnMethod("methodName", this.getProcessorOptions().obfuscateInjectorMetadata
? target.data.nameMapped : target.data.signature.name))
.addMethod(buildStringReturnMethod("methodDesc", this.getProcessorOptions().obfuscateInjectorMetadata
? target.descriptorObf : target.data.signature.name))
.addMethods(generateDummies(cl))
.addMethod(generateInjector(toGenerate.get(injName), this.processingEnv))
.build();

42
src/main/java/ftbsc/lll/processor/tools/ProcessorOptions.java → src/main/java/ftbsc/lll/processor/ProcessorOptions.java
View file

@ -1,16 +1,13 @@
package ftbsc.lll.processor.tools;
package ftbsc.lll.processor;
import ftbsc.lll.IInjector;
import ftbsc.lll.exceptions.InvalidResourceException;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import ftbsc.lll.mapper.MapperProvider;
import ftbsc.lll.mapper.tools.Mapper;
import javax.annotation.processing.ProcessingEnvironment;
import java.io.*;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
@ -33,10 +30,10 @@ public class ProcessorOptions {
public final ProcessingEnvironment env;
/**
* The {@link ObfuscationMapper} used to convert classes and variables
* The {@link Mapper} used to convert classes and variables
* to their obfuscated equivalent. Will be null when no mapper is in use.
*/
public final ObfuscationMapper mapper;
public final Mapper mapper;
/**
* Whether the processor should issue warnings when compiling code anonymous
@ -62,29 +59,10 @@ public class ProcessorOptions {
public ProcessorOptions(ProcessingEnvironment env) {
this.env = env;
String location = env.getOptions().get("mappingsFile");
if(location == null)
this.mapper = null;
else {
InputStream targetStream;
try {
URI target = new URI(location);
targetStream = target.toURL().openStream();
} catch(URISyntaxException | IOException e) {
//may be a local file path
File f = new File(location);
if(!f.exists())
throw new InvalidResourceException(location);
try {
targetStream = new FileInputStream(f);
} catch(FileNotFoundException ex) {
throw new InvalidResourceException(location);
}
}
//assuming its tsrg file
//todo: replace crappy homebaked parser with actual library
this.mapper = new ObfuscationMapper(new BufferedReader(new InputStreamReader(targetStream,
StandardCharsets.UTF_8)).lines());
}
if(location != null) {
List<String> lines = MapperProvider.fetchFromLocalOrRemote(location);
this.mapper = MapperProvider.getMapper(lines).getMapper(lines, true);
} else this.mapper = null;
this.anonymousClassWarning = parseBooleanArg(env.getOptions().get("anonymousClassWarning"), true);
this.obfuscateInjectorMetadata = parseBooleanArg(env.getOptions().get("obfuscateInjectorMetadata"), true);
this.noServiceProvider = parseBooleanArg(env.getOptions().get("noServiceProvider"), false);

22
src/main/java/ftbsc/lll/processor/tools/containers/ClassContainer.java → src/main/java/ftbsc/lll/processor/containers/ClassContainer.java
View file

@ -1,9 +1,10 @@
package ftbsc.lll.processor.tools.containers;
package ftbsc.lll.processor.containers;
import ftbsc.lll.exceptions.TargetNotFoundException;
import ftbsc.lll.mapper.tools.data.ClassData;
import ftbsc.lll.processor.annotations.Find;
import ftbsc.lll.processor.annotations.Patch;
import ftbsc.lll.processor.tools.ProcessorOptions;
import ftbsc.lll.processor.ProcessorOptions;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
@ -11,7 +12,7 @@ import javax.tools.Diagnostic;
import java.lang.annotation.Annotation;
import java.util.function.Function;
import static ftbsc.lll.processor.tools.ASTUtils.*;
import static ftbsc.lll.processor.utils.ASTUtils.*;
/**
* Container for information about a class.
@ -20,15 +21,9 @@ import static ftbsc.lll.processor.tools.ASTUtils.*;
*/
public class ClassContainer {
/**
* The fully-qualified name of the class.
* The {@link ClassData} for the class represented by this container.
*/
public final String fqn;
/**
* The obfuscated fully-qualified name of the class.
* If the mapper passed is null, then this will be identical to {@link #fqn}
*/
public final String fqnObf;
public final ClassData data;
/**
* The {@link Element} corresponding to the class.
@ -84,8 +79,7 @@ public class ClassContainer {
throw new TargetNotFoundException("class", inner);
}
}
this.fqn = fqnBuilder.toString();
this.fqnObf = findClassName(this.fqn, options);
this.data = getClassData(fqnBuilder.toString(), options.mapper);
this.elem = elem;
}
@ -131,6 +125,6 @@ public class ClassContainer {
public static ClassContainer findOrFallback(ClassContainer fallback, Patch p, Find f, ProcessorOptions options) {
if(f == null) return ClassContainer.from(p, Patch::value, p.innerName(), options);
ClassContainer cl = ClassContainer.from(f, Find::value, f.innerName(), options);
return cl.fqn.equals("java.lang.Object") ? fallback : cl;
return cl.data.name.equals("java/lang/Object") ? fallback : cl;
}
}

30
src/main/java/ftbsc/lll/processor/tools/containers/FieldContainer.java → src/main/java/ftbsc/lll/processor/containers/FieldContainer.java
View file

@ -1,9 +1,11 @@
package ftbsc.lll.processor.tools.containers;
package ftbsc.lll.processor.containers;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.mapper.tools.MappingUtils;
import ftbsc.lll.mapper.tools.data.FieldData;
import ftbsc.lll.processor.annotations.Find;
import ftbsc.lll.processor.annotations.Patch;
import ftbsc.lll.processor.tools.ProcessorOptions;
import ftbsc.lll.processor.ProcessorOptions;
import org.objectweb.asm.Type;
import javax.lang.model.element.TypeElement;
@ -11,7 +13,7 @@ import javax.lang.model.element.VariableElement;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import static ftbsc.lll.processor.tools.ASTUtils.*;
import static ftbsc.lll.processor.utils.ASTUtils.*;
/**
* Container for information about a field.
@ -20,21 +22,15 @@ import static ftbsc.lll.processor.tools.ASTUtils.*;
*/
public class FieldContainer {
/**
* The name of the field.
* The {@link FieldData} for the field represented by this container.
*/
public final String name;
public final FieldData data;
/**
* The descriptor of the field.
*/
public final String descriptor;
/**
* The obfuscated name of the field.
* If the mapper passed is null, then this will be identical to {@link #name}.
*/
public final String nameObf;
/**
* The obfuscated descriptor of the field.
* If the mapper passed is null, then this will be identical to {@link #descriptor}.
@ -66,15 +62,15 @@ public class FieldContainer {
if(descriptor == null)
throw new AmbiguousDefinitionException("Cannot use name-based lookups for fields of unverifiable classes!");
this.elem = null;
this.name = name;
this.descriptor = descriptor;
} else {
this.elem = (VariableElement) findMember(parent, name, descriptor, descriptor != null, true, options.env);
this.name = this.elem.getSimpleName().toString();
this.descriptor = descriptorFromType(this.elem.asType(), options.env);
name = this.elem.getSimpleName().toString();
}
this.descriptorObf = options.mapper == null ? this.descriptor : options.mapper.obfuscateType(Type.getType(this.descriptor)).getDescriptor();
this.nameObf = findMemberName(parent.fqn, this.name, null, options.mapper);
this.data = getFieldData(parent.data.name, name, options.mapper);
this.descriptorObf = options.mapper == null ? this.descriptor
: MappingUtils.mapType(Type.getType(this.descriptor), options.mapper, false).getDescriptor();
}
/**
@ -94,7 +90,7 @@ public class FieldContainer {
ClassContainer.from((TypeElement) finder.getEnclosingElement(), options), patchAnn, f, options
);
String name = f.name().equals("") ? finder.getSimpleName().toString() : f.name();
String name = f.name().isEmpty() ? finder.getSimpleName().toString() : f.name();
String descriptor;
TypeMirror fieldType = getTypeFromAnnotation(f, Find::type, options.env);
if(fieldType.toString().equals("java.lang.Object")) {
@ -104,7 +100,7 @@ public class FieldContainer {
descriptor = //jank af but this is temporary anyway
"L" + ClassContainer.from(
f, Find::type, f.typeInner(), options
).fqnObf.replace('.', '/') + ";";
).data.nameMapped + ";";
else descriptor = descriptorFromType(fieldType, options.env);
}

6
src/main/java/ftbsc/lll/processor/tools/containers/InjectorInfo.java → src/main/java/ftbsc/lll/processor/containers/InjectorInfo.java
View file

@ -1,8 +1,8 @@
package ftbsc.lll.processor.tools.containers;
package ftbsc.lll.processor.containers;
import ftbsc.lll.processor.annotations.Injector;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.ProcessorOptions;
import ftbsc.lll.processor.ProcessorOptions;
import javax.lang.model.element.ExecutableElement;
@ -43,4 +43,4 @@ public class InjectorInfo {
this.reason = injector.getAnnotation(Injector.class).reason();
this.target = MethodContainer.from(targetStub, targetAnn, null, options);
}
}
}

39
src/main/java/ftbsc/lll/processor/tools/containers/MethodContainer.java → src/main/java/ftbsc/lll/processor/containers/MethodContainer.java
View file

@ -1,16 +1,18 @@
package ftbsc.lll.processor.tools.containers;
package ftbsc.lll.processor.containers;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.exceptions.TargetNotFoundException;
import ftbsc.lll.mapper.tools.MappingUtils;
import ftbsc.lll.mapper.tools.data.MethodData;
import ftbsc.lll.processor.annotations.Find;
import ftbsc.lll.processor.annotations.Patch;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.ProcessorOptions;
import ftbsc.lll.processor.ProcessorOptions;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import static ftbsc.lll.processor.tools.ASTUtils.*;
import static ftbsc.lll.processor.utils.ASTUtils.*;
/**
* Container for information about a method.
@ -19,24 +21,14 @@ import static ftbsc.lll.processor.tools.ASTUtils.*;
*/
public class MethodContainer {
/**
* The name of the method.
* The {@link MethodData} for the method represented by this container.
*/
public final String name;
/**
* The descriptor of the method.
*/
public final String descriptor;
/**
* The obfuscated name of the method.
* If the mapper passed is null, then this will be identical to {@link #name}.
*/
public final String nameObf;
public final MethodData data;
/**
* The obfuscated descriptor of the field.
* If the mapper passed is null, then this will be identical to {@link #descriptor}.
* If the mapper passed is null, this will be identical to the one inside
* {@link #data}.
*/
public final String descriptorObf;
@ -68,18 +60,17 @@ public class MethodContainer {
if(descriptor == null)
throw new AmbiguousDefinitionException("Cannot use name-based lookups for methods of unverifiable classes!");
this.elem = null;
this.name = name;
this.descriptor = descriptor;
} else {
ExecutableElement tmp = (ExecutableElement) findMember(
parent, name, descriptor, descriptor != null && strict,false, options.env
);
this.elem = bridge ? findSyntheticBridge((TypeElement) this.parent.elem, tmp, options.env) : tmp;
this.name = this.elem.getSimpleName().toString();
this.descriptor = descriptorFromExecutableElement(this.elem, options.env);
name = this.elem.getSimpleName().toString();
descriptor = descriptorFromExecutableElement(this.elem, options.env);
}
this.descriptorObf = options.mapper == null ? this.descriptor : options.mapper.obfuscateMethodDescriptor(this.descriptor);
this.nameObf = findMemberName(parent.fqn, this.name, this.descriptor, options.mapper);
this.data = getMethodData(parent.data.name, name, descriptor, options.mapper);
this.descriptorObf = options.mapper == null ? this.data.signature.descriptor
: MappingUtils.mapMethodDescriptor(this.data.signature.descriptor, options.mapper, false);
}
/**
@ -99,7 +90,7 @@ public class MethodContainer {
ClassContainer parent = ClassContainer.findOrFallback(
ClassContainer.from((TypeElement) stub.getEnclosingElement(), options), patchAnn, f, options
);
String name = !t.methodName().equals("")
String name = !t.methodName().isEmpty()
? t.methodName() //name was specified in target
: stub.getSimpleName().toString();
String descriptor = t.strict()

225
src/main/java/ftbsc/lll/processor/tools/obfuscation/ObfuscationMapper.java
View file

@ -1,225 +0,0 @@
package ftbsc.lll.processor.tools.obfuscation;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.tools.DescriptorBuilder;
import org.objectweb.asm.Type;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Parses a .tsrg file into a mapper capable of converting from
* deobfuscated names to obfuscated ones.
* Obviously, it may only be used at runtime if the .tsrg file is
* included in the resources. However, in that case, I'd recommend
* using the built-in Forge one and refrain from including an extra
* resource for no good reason.
* TODO: CSV format
* @since 0.2.0
*/
public class ObfuscationMapper {
/**
* A Map using the deobfuscated names as keys,
* holding information for that class as value.
*/
private final Map<String, ObfuscationData> mapper = new HashMap<>();
/**
* The public constructor.
* Should be passed a {@link Stream} of Strings, one representing each line.
* Whether they contain line endings or not is irrelevant.
* @param str a {@link Stream} of strings
*/
public ObfuscationMapper(Stream<String> str) {
AtomicReference<String> currentClass = new AtomicReference<>("");
str.forEach(l -> {
if(l == null) return;
if(l.startsWith("\t"))
mapper.get(currentClass.get()).addMember(l);
else {
String[] sp = l.split(" ");
ObfuscationData s = new ObfuscationData(sp[0], sp[1]);
currentClass.set(s.unobf);
mapper.put(s.unobf, s);
}
});
}
/**
* Gets the obfuscated name of the class.
* @param name the unobfuscated internal name of the desired class
* @return the obfuscated name of the class
* @throws MappingNotFoundException if no mapping is found
*/
public String obfuscateClass(String name) {
ObfuscationData data = mapper.get(name.replace('.', '/'));
if(data == null)
throw new MappingNotFoundException(name);
else return data.obf;
}
/**
* Gets the obfuscated name of a class member (field or method).
* The method signature must be in this format: "methodName methodDescriptor",
* with a space, because that's how it is in .tsrg files.
* @param parentName the unobfuscated internal name of the parent class
* @param memberName the field name or method signature
* @param methodDescriptor the optional descriptor of the member, may be null or partial
* @return the obfuscated name of the given member
* @throws MappingNotFoundException if no mapping is found
*/
public String obfuscateMember(String parentName, String memberName, String methodDescriptor) {
ObfuscationData data = mapper.get(parentName.replace('.', '/'));
if(data == null)
throw new MappingNotFoundException(parentName + "::" + memberName);
return data.get(memberName, methodDescriptor);
}
/**
* Obfuscates a method descriptor, replacing its class references
* with their obfuscated counterparts.
* @param descriptor a {@link String} containing the descriptor
* @return the obfuscated descriptor
* @since 0.5.1
*/
public String obfuscateMethodDescriptor(String descriptor) {
Type method = Type.getMethodType(descriptor);
Type[] arguments = method.getArgumentTypes();
Type returnType = method.getReturnType();
Type[] obfArguments = new Type[arguments.length];
for(int i = 0; i < obfArguments.length; i++)
obfArguments[i] = this.obfuscateType(arguments[i]);
return Type.getMethodDescriptor(this.obfuscateType(returnType), obfArguments);
}
/**
* Given a {@link Type} it returns its obfuscated counterpart.
* @param type the type in question
* @return the obfuscated type
* @since 0.5.1
*/
public Type obfuscateType(Type type) {
//unwrap arrays
Type unwrapped = type;
int arrayLevel = 0;
while(unwrapped.getSort() == org.objectweb.asm.Type.ARRAY) {
unwrapped = unwrapped.getElementType();
arrayLevel++;
}
//if it's a primitive no operation is needed
if(type.getSort() < org.objectweb.asm.Type.ARRAY)
return type;
String internalName = type.getInternalName();
String internalNameObf;
try {
internalNameObf = this.obfuscateClass(internalName);
return Type.getType(DescriptorBuilder.nameToDescriptor(internalNameObf, arrayLevel));
} catch(MappingNotFoundException e) {
return type;
}
}
/**
* Private class used internally for storing information about each
* class. It's private because there is no good reason anyone would
* want to access this outside of this class.
*/
private static class ObfuscationData {
/**
* The unobfuscated name (FQN with '/' instad of '.') of the class.
*/
private final String unobf;
/**
* The obfuscated internal name (FQN with '/' instad of '.') of the class.
*/
private final String obf;
/**
* A {@link Map} tying each member's name or signature to its
* obfuscated counterpart.
*/
private final Map<String, String> members;
/**
* The constructor. It takes in the names (obfuscated and non-obfuscated)
* of a class.
* @param unobf the unobfuscated name
* @param obf the obfuscated name
*/
private ObfuscationData(String unobf, String obf) {
this.unobf = unobf;
this.obf = obf;
this.members = new HashMap<>();
}
/**
* Adds a member to the target class.
* For fields only the names are required; for methods,
* this takes in the full signature ({@code name + " " + space}).
* @param s the String representing the declaration line
*/
public void addMember(String s) {
String[] split = s.trim().split(" ");
if(split.length == 2) //field
members.put(split[0], split[1]);
else if (split.length == 3) //method
members.put(split[0] + " " + split[1], split[2]);
}
/**
* Gets an obfuscated member given the method name and a method descriptor,
* which may be partial (i.e. not include return type) or null if the member
* is not a method.
* @param memberName member name
* @param methodDescriptor the method descriptor, or null if it's not a method
* @return the requested obfuscated name, or null if nothing was found
* @throws AmbiguousDefinitionException if not enough data was given to uniquely identify a mapping
*/
public String get(String memberName, String methodDescriptor) {
//find all keys that start with the name
List<String> candidates = members.keySet().stream().filter(
m -> m.split(" ")[0].equals(memberName)
).collect(Collectors.toList());
if(methodDescriptor != null) {
String signature = String.format("%s %s", memberName, methodDescriptor);
candidates = candidates.stream().filter(
m -> m.equals(signature)
).collect(Collectors.toList());
}
switch(candidates.size()) {
case 0:
throw new MappingNotFoundException(String.format(
"%s.%s%s",
this.unobf,
memberName,
methodDescriptor == null ? "" : "()"
));
case 1:
return members.get(candidates.get(0));
default:
throw new AmbiguousDefinitionException(String.format(
"Mapper could not uniquely identify member %s.%s%s, found %d!",
this.unobf,
memberName,
methodDescriptor == null ? "" : "()",
candidates.size()
));
}
}
}
}

102
src/main/java/ftbsc/lll/processor/tools/ASTUtils.java → src/main/java/ftbsc/lll/processor/utils/ASTUtils.java
View file

@ -1,12 +1,15 @@
package ftbsc.lll.processor.tools;
package ftbsc.lll.processor.utils;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.exceptions.NotAProxyException;
import ftbsc.lll.exceptions.TargetNotFoundException;
import ftbsc.lll.mapper.tools.Mapper;
import ftbsc.lll.mapper.tools.data.ClassData;
import ftbsc.lll.mapper.tools.data.FieldData;
import ftbsc.lll.mapper.tools.data.MethodData;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.containers.ClassContainer;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import ftbsc.lll.processor.containers.ClassContainer;
import ftbsc.lll.proxies.ProxyType;
import javax.annotation.processing.ProcessingEnvironment;
@ -210,35 +213,59 @@ public class ASTUtils {
}
/**
* Finds the class name and maps it to the correct format.
* @param name the fully qualified name of the class to convert
* @param options the {@link ProcessorOptions} to be used
* Gets the {@link ClassData} corresponding to the given fully-qualified name,
* or creates a false one with the same, non-obfuscated name twice.
* @param name the internal name of the class to convert
* @param mapper the {@link Mapper} to use, may be null
* @return the fully qualified class name
* @since 0.3.0
* @since 0.6.1
*/
public static String findClassName(String name, ProcessorOptions options) {
public static ClassData getClassData(String name, Mapper mapper) {
try {
return options.mapper == null ? name : options.mapper.obfuscateClass(name).replace('/', '.');
} catch(MappingNotFoundException e) {
return name;
}
name = name.replace('.', '/'); //just in case
if(mapper != null)
return mapper.getClassData(name);
} catch(MappingNotFoundException ignored) {}
return new ClassData(name, name);
}
/**
* Finds the member name and maps it to the correct format.
* @param parentFQN the unobfuscated FQN of the parent class
* @param memberName the name of the member
* @param methodDescriptor the descriptor of the method, may be null
* @param mapper the {@link ObfuscationMapper} to use, may be null
* @return the internal class name
* @since 0.3.0
* Gets the {@link MethodData} corresponding to the method matching the given
* name, parent and descriptor, or creates a dummy one with fake data if no
* valid mapping is found.
* @param parent the internal name of the parent class
* @param name the name of the member
* @param descriptor the descriptor of the method
* @param mapper the {@link Mapper} to use, may be null
* @return the fully qualified class name
* @since 0.6.1
*/
public static String findMemberName(String parentFQN, String memberName, String methodDescriptor, ObfuscationMapper mapper) {
public static MethodData getMethodData(String parent, String name, String descriptor, Mapper mapper) {
try {
return mapper == null ? memberName : mapper.obfuscateMember(parentFQN, memberName, methodDescriptor);
} catch(MappingNotFoundException e) {
return memberName;
}
name = name.replace('.', '/'); //just in case
if(mapper != null)
return mapper.getMethodData(parent, name, descriptor);
} catch(MappingNotFoundException ignored) {}
return new MethodData(getClassData(name, mapper), name, name, descriptor);
}
/**
* Gets the {@link FieldData} corresponding to the field matching the given
* name and parent, or creates a dummy one with fake data if no valid
* mapping is found.
* @param parent the internal name of the parent class
* @param name the name of the member
* @param mapper the {@link Mapper} to use, may be null
* @return the fully qualified class name
* @since 0.6.1
*/
public static FieldData getFieldData(String parent, String name, Mapper mapper) {
try {
name = name.replace('.', '/'); //just in case
if(mapper != null)
return mapper.getFieldData(parent, name);
} catch(MappingNotFoundException ignored) {}
return new FieldData(getClassData(name, mapper), name, name);
}
/**
@ -258,7 +285,7 @@ public class ASTUtils {
ClassContainer parent, String name, String descr,
boolean strict, boolean field, ProcessingEnvironment env) {
if(parent.elem == null)
throw new TargetNotFoundException("parent class", parent.fqn);
throw new TargetNotFoundException("parent class", parent.data.name);
//try to find by name
List<Element> candidates = parent.elem.getEnclosedElements()
.stream()
@ -266,36 +293,37 @@ public class ASTUtils {
.filter(e -> e.getSimpleName().contentEquals(name))
.collect(Collectors.toList());
if(candidates.size() == 0)
throw new TargetNotFoundException(field ? "field" : "method", name, parent.fqn);
if(candidates.isEmpty())
throw new TargetNotFoundException(field ? "field" : "method", name, parent.data.name);
if(candidates.size() == 1 && (!strict || descr == null))
return candidates.get(0);
if(descr == null) {
throw new AmbiguousDefinitionException(
String.format("Found %d members named %s in class %s!", candidates.size(), name, parent.fqn)
);
throw new AmbiguousDefinitionException(String.format(
"Found %d members named %s in class %s!", candidates.size(), name, parent.data.name));
} else {
if(field) {
//fields can verify the signature for extra safety
//but there can only be 1 field with a given name
if(!descriptorFromType(candidates.get(0).asType(), env).equals(descr))
throw new TargetNotFoundException("field", String.format("%s with descriptor %s", name, descr), parent.fqn);
throw new TargetNotFoundException("field", String.format(
"%s with descriptor %s", name, descr), parent.data.name);
} else {
candidates = candidates.stream()
.map(e -> (ExecutableElement) e)
.filter(strict
? c -> descr.equals(descriptorFromExecutableElement(c, env))
: c -> descr.split("\\)")[0].equalsIgnoreCase(descriptorFromExecutableElement(c, env).split("\\)")[0])
: c -> descr.split("\\)")[0].equalsIgnoreCase(
descriptorFromExecutableElement(c, env).split("\\)")[0])
).collect(Collectors.toList());
}
if(candidates.size() == 0)
throw new TargetNotFoundException("method", String.format("%s %s", name, descr), parent.fqn);
if(candidates.isEmpty())
throw new TargetNotFoundException("method", String.format(
"%s %s", name, descr), parent.data.name);
if(candidates.size() > 1)
throw new AmbiguousDefinitionException(
String.format("Found %d methods named %s in class %s!", candidates.size(), name, parent.fqn)
);
throw new AmbiguousDefinitionException(String.format(
"Found %d methods named %s in class %s!", candidates.size(), name, parent.data.name));
return candidates.get(0);
}
}

21
src/main/java/ftbsc/lll/processor/tools/JavaPoetUtils.java → src/main/java/ftbsc/lll/processor/utils/JavaPoetUtils.java
View file

@ -1,12 +1,13 @@
package ftbsc.lll.processor.tools;
package ftbsc.lll.processor.utils;
import com.squareup.javapoet.*;
import ftbsc.lll.processor.ProcessorOptions;
import ftbsc.lll.processor.annotations.Find;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.containers.ClassContainer;
import ftbsc.lll.processor.tools.containers.FieldContainer;
import ftbsc.lll.processor.tools.containers.InjectorInfo;
import ftbsc.lll.processor.tools.containers.MethodContainer;
import ftbsc.lll.processor.containers.ClassContainer;
import ftbsc.lll.processor.containers.FieldContainer;
import ftbsc.lll.processor.containers.InjectorInfo;
import ftbsc.lll.processor.containers.MethodContainer;
import ftbsc.lll.proxies.ProxyType;
import ftbsc.lll.proxies.impl.FieldProxy;
import ftbsc.lll.proxies.impl.MethodProxy;
@ -15,8 +16,8 @@ import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.*;
import java.util.HashSet;
import static ftbsc.lll.processor.tools.ASTUtils.getProxyType;
import static ftbsc.lll.processor.tools.ASTUtils.mapModifiers;
import static ftbsc.lll.processor.utils.ASTUtils.getProxyType;
import static ftbsc.lll.processor.utils.ASTUtils.mapModifiers;
/**
* Collection of static utils that rely on JavaPoet to function.
@ -65,13 +66,13 @@ public class JavaPoetUtils {
if(isMethod) {
MethodContainer mc = MethodContainer.from(stub, t, f, options);
descriptorObf = mc.descriptorObf;
nameObf = mc.nameObf;
nameObf = mc.data.nameMapped;
parent = mc.parent;
target = mc.elem;
} else {
FieldContainer fc = FieldContainer.from(var, options);
descriptorObf = fc.descriptorObf;
nameObf = fc.nameObf;
nameObf = fc.data.nameMapped;
parent = fc.parent;
target = fc.elem;
}
@ -88,7 +89,7 @@ public class JavaPoetUtils {
con.addStatement(
"$L.setParent($S, $L)",
builderName,
parent.fqnObf,
parent.data.nameMapped.replace('/', '.'),
parent.elem == null ? 0 : mapModifiers(parent.elem.getModifiers())
);