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feat: hook ClassLoader, Class, RuntimeMXBean, System, PluginManagerCore

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This commit is contained in:
yelochick
2025-06-23 10:26:07 +08:00
parent 3388fad6fc
commit 6da7112443
17 changed files with 493 additions and 38 deletions
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41
src/main/java/com/novitechie/ClassLoaderTransformer.java Normal file
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@@ -0,0 +1,41 @@
package com.novitechie;
import com.janetfilter.core.plugin.MyTransformer;
import jdk.internal.org.objectweb.asm.ClassReader;
import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.tree.*;
import static jdk.internal.org.objectweb.asm.Opcodes.*;
/**
* @author YeloChick
*/
public class ClassLoaderTransformer implements MyTransformer {
@Override
public String getHookClassName() {
return "java/lang/ClassLoader";
}
@Override
public byte[] transform(String className, byte[] classBytes, int order) throws Exception {
ClassReader reader = new ClassReader(classBytes);
ClassNode node = new ClassNode(ASM5);
reader.accept(node, 0);
for (MethodNode m : node.methods) {
if ("loadClass".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 1));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/LoadClassRule", "check", "(Ljava/lang/String;)V", false));
list.add(labelNode);
m.instructions.insert(list);
}
}
ClassWriter writer = new SafeClassWriter(null, null, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
node.accept(writer);
return writer.toByteArray();
}
}

65
src/main/java/com/novitechie/ClassTransformer.java Normal file
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@@ -0,0 +1,65 @@
package com.novitechie;
import com.janetfilter.core.plugin.MyTransformer;
import jdk.internal.org.objectweb.asm.ClassReader;
import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.tree.*;
import static jdk.internal.org.objectweb.asm.Opcodes.*;
/**
* @author YeloChick
*/
public class ClassTransformer implements MyTransformer {
@Override
public String getHookClassName() {
return "java/lang/Class";
}
@Override
public byte[] transform(String className, byte[] classBytes, int order) throws Exception {
ClassReader reader = new ClassReader(classBytes);
ClassNode node = new ClassNode(ASM5);
reader.accept(node, 0);
for (MethodNode m : node.methods) {
if ("getResource".equals(m.name) && m.desc.equals("(Ljava/lang/String;)Ljava/net/URL;")) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 1));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/ResourceRule", "check", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ACONST_NULL));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
m.instructions.insert(list);
} else if ("getResourceAsStream".equals(m.name) && m.desc.equals("(Ljava/lang/String;)Ljava/io/InputStream;")) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 1));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/ResourceRule", "check", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ACONST_NULL));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
m.instructions.insert(list);
} else if ("getDeclaredMethod".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 1));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/ClassRule", "checkMethod", "(Ljava/lang/String;)V", false));
list.add(labelNode);
m.instructions.insert(list);
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
node.accept(writer);
return writer.toByteArray();
}
}

4
src/main/java/com/novitechie/LicensingFacadeTransformer.java
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@@ -21,10 +21,10 @@ public class LicensingFacadeTransformer implements MyTransformer {
for (MethodNode m : node.methods) {
if ("getLicenseExpirationDate".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/StackTraceRule", "hook", "()Ljava/util/Date;", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "hook", "()Ljava/util/Date;", false));
list.add(new InsnNode(DUP));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFNULL,labelNode));
list.add(new JumpInsnNode(IFNULL, labelNode));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
list.add(new InsnNode(POP));

22
src/main/java/com/novitechie/LoadClassRule.java
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@@ -1,22 +0,0 @@
package com.novitechie;
import java.util.ArrayList;
import java.util.List;
public class LoadClassRule {
private static final List<String> PREVENT_LOAD_PACKAGES = new ArrayList<String>() {
{
add("com.novitechie");
add("com.janetfilter");
add("jdk.internal.org.objectweb.asm");
}
};
public static void check(String name) throws Exception {
if (PREVENT_LOAD_PACKAGES.stream().anyMatch(name::startsWith)) {
throw new ClassNotFoundException(name);
}
}
}

4
src/main/java/com/novitechie/PluginClassLoaderTransformer.java
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@@ -22,11 +22,11 @@ public class PluginClassLoaderTransformer implements MyTransformer {
if ("loadClass".equals(m.name)) {
InsnList list = new InsnList();
list.add(new VarInsnNode(ALOAD, 1));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/LoadClassRule", "check", "(Ljava/lang/String;)V", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/LoadClassRule", "check", "(Ljava/lang/String;)V", false));
m.instructions.insert(list);
}
}
ClassWriter writer = new SafeClassWriter(null,null,ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
ClassWriter writer = new SafeClassWriter(null, null, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
node.accept(writer);
return writer.toByteArray();
}

68
src/main/java/com/novitechie/PluginManagerCoreTransformer.java
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@@ -23,23 +23,77 @@ public class PluginManagerCoreTransformer implements MyTransformer {
ClassNode node = new ClassNode(ASM5);
reader.accept(node, 0);
for (MethodNode m : node.methods) {
if ("isPluginInstalled".equals(m.name)) {
if ("getPlugins".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/StackTraceRule", "check", "()Z", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode L1 = new LabelNode();
LabelNode L2 = new LabelNode();
LabelNode L3 = new LabelNode();
LabelNode L4 = new LabelNode();
list.add(new JumpInsnNode(IFEQ, L1));
list.add(new FieldInsnNode(GETSTATIC, "com/intellij/ide/plugins/PluginManagerCore", "INSTANCE", "Lcom/intellij/ide/plugins/PluginManagerCore;"));
list.add(new MethodInsnNode(INVOKEVIRTUAL, "com/intellij/ide/plugins/PluginManagerCore", "getPluginSet", "()Lcom/intellij/ide/plugins/PluginSet;", false));
list.add(new FieldInsnNode(GETFIELD, "com/intellij/ide/plugins/PluginSet", "allPlugins", "Ljava/util/Set;"));
list.add(new VarInsnNode(ASTORE, 0));
list.add(new TypeInsnNode(NEW, "java/util/HashSet"));
list.add(new InsnNode(DUP));
list.add(new MethodInsnNode(INVOKESPECIAL, "java/util/HashSet", "<init>", "()V", false));
list.add(new VarInsnNode(ASTORE, 1));
list.add(new VarInsnNode(ALOAD, 0));
list.add(new MethodInsnNode(INVOKEINTERFACE, "java/util/Set", "iterator", "()Ljava/util/Iterator;", true));
list.add(new VarInsnNode(ASTORE, 2));
list.add(L3);
list.add(new VarInsnNode(ALOAD, 2));
list.add(new MethodInsnNode(INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true));
list.add(new JumpInsnNode(IFEQ, L2));
list.add(new VarInsnNode(ALOAD, 2));
list.add(new MethodInsnNode(INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true));
list.add(new TypeInsnNode(CHECKCAST, "com/intellij/ide/plugins/IdeaPluginDescriptor"));
list.add(new VarInsnNode(ASTORE, 3));
list.add(new VarInsnNode(ALOAD, 3));
list.add(new MethodInsnNode(INVOKEINTERFACE, "com/intellij/ide/plugins/IdeaPluginDescriptor", "getPluginId", "()Lcom/intellij/openapi/extensions/PluginId;", true));
list.add(new MethodInsnNode(INVOKEVIRTUAL, "com/intellij/openapi/extensions/PluginId", "getIdString", "()Ljava/lang/String;", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/IdeaPluginRule", "check", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFNE, L4));
list.add(new VarInsnNode(ALOAD, 1));
list.add(new VarInsnNode(ALOAD, 3));
list.add(new MethodInsnNode(INVOKEINTERFACE, "java/util/Set", "add", "(Ljava/lang/Object;)Z", true));
list.add(new InsnNode(POP));
list.add(L4);
list.add(new JumpInsnNode(GOTO, L3));
list.add(L2);
list.add(new VarInsnNode(ALOAD, 1));
list.add(new InsnNode(ICONST_0));
list.add(new TypeInsnNode(ANEWARRAY, "com/intellij/ide/plugins/IdeaPluginDescriptor"));
list.add(new MethodInsnNode(INVOKEINTERFACE, "java/util/Set", "toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;", true));
list.add(new TypeInsnNode(CHECKCAST, "[Lcom/intellij/ide/plugins/IdeaPluginDescriptor;"));
list.add(new InsnNode(ARETURN));
list.add(L1);
m.instructions.insert(list);
} else if ("isPluginInstalled".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 0));
list.add(new MethodInsnNode(INVOKEVIRTUAL, "com/intellij/openapi/extensions/PluginId", "getIdString", "()Ljava/lang/String;", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/IdeaPluginRule", "check", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ICONST_0));
list.add(new InsnNode(IRETURN));
list.add(labelNode);
m.instructions.insert(list);
} else if ("getPlugins".equals(m.name)) {
} else if ("isDisabled".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/StackTraceRule", "check", "()Z", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ICONST_0));
list.add(new TypeInsnNode(ANEWARRAY, "java/lang/Object"));
list.add(new InsnNode(ARETURN));
list.add(new VarInsnNode(ALOAD, 0));
list.add(new MethodInsnNode(INVOKEVIRTUAL, "com/intellij/openapi/extensions/PluginId", "getIdString", "()Ljava/lang/String;", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/IdeaPluginRule", "check", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ICONST_1));
list.add(new InsnNode(IRETURN));
list.add(labelNode);
m.instructions.insert(list);
}

6
src/main/java/com/novitechie/PrivacyPlugin.java
View File

@@ -23,6 +23,10 @@ public class PrivacyPlugin implements PluginEntry {
new VMOptionsTransformer(),
new PluginClassLoaderTransformer(),
new LicensingFacadeTransformer(),
new PluginManagerCoreTransformer());
new PluginManagerCoreTransformer(),
new RuntimeMXBeanTransformer(),
new SystemTransformer(),
new ClassTransformer(),
new ClassLoaderTransformer());
}
}

42
src/main/java/com/novitechie/RuntimeMXBeanTransformer.java Normal file
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@@ -0,0 +1,42 @@
package com.novitechie;
import com.janetfilter.core.plugin.MyTransformer;
import jdk.internal.org.objectweb.asm.ClassReader;
import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.tree.*;
import static jdk.internal.org.objectweb.asm.Opcodes.*;
/**
* @author YeloChick
*/
public class RuntimeMXBeanTransformer implements MyTransformer {
@Override
public String getHookClassName() {
return "sun/management/RuntimeImpl";
}
@Override
public byte[] transform(String className, byte[] classBytes, int order) throws Exception {
ClassReader reader = new ClassReader(classBytes);
ClassNode node = new ClassNode(ASM5);
reader.accept(node, 0);
for (MethodNode m : node.methods) {
if ("getInputArguments".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new LdcInsnNode(""));
list.add(new MethodInsnNode(INVOKESTATIC, "java/util/Collections", "singletonList", "(Ljava/lang/Object;)Ljava/util/List;", false));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
m.instructions.insert(list);
}
}
ClassWriter writer = new SafeClassWriter(null, null, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
node.accept(writer);
return writer.toByteArray();
}
}

56
src/main/java/com/novitechie/SystemTransformer.java Normal file
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@@ -0,0 +1,56 @@
package com.novitechie;
import com.janetfilter.core.plugin.MyTransformer;
import jdk.internal.org.objectweb.asm.ClassReader;
import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.tree.*;
import static jdk.internal.org.objectweb.asm.Opcodes.*;
/**
* @author YeloChick
*/
public class SystemTransformer implements MyTransformer {
@Override
public String getHookClassName() {
return "java/lang/System";
}
@Override
public byte[] transform(String className, byte[] classBytes, int order) throws Exception {
ClassReader reader = new ClassReader(classBytes);
ClassNode node = new ClassNode(ASM5);
reader.accept(node, 0);
for (MethodNode m : node.methods) {
if ("getenv".equals(m.name) && m.desc.equals("(Ljava/lang/String;)Ljava/lang/String;")) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 0));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/SystemRule", "checkEnv", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ACONST_NULL));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
m.instructions.insert(list);
} else if ("getProperty".equals(m.name) && (m.desc.equals("(Ljava/lang/String;)Ljava/lang/String;") || m.desc.equals("(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"))) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new VarInsnNode(ALOAD, 0));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/SystemRule", "checkProperty", "(Ljava/lang/String;)Z", false));
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ACONST_NULL));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
m.instructions.insert(list);
}
}
ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
node.accept(writer);
return writer.toByteArray();
}
}

4
src/main/java/com/novitechie/VMOptionsTransformer.java
View File

@@ -21,10 +21,10 @@ public class VMOptionsTransformer implements MyTransformer {
for (MethodNode m : node.methods) {
if ("getUserOptionsFile".equals(m.name)) {
InsnList list = new InsnList();
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/StackTraceRule", "check", "()Z", false));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/StackTraceRule", "check", "()Z", false));
LabelNode labelNode = new LabelNode();
list.add(new JumpInsnNode(IFEQ, labelNode));
list.add(new InsnNode(ACONST_NULL));
list.add(new MethodInsnNode(INVOKESTATIC, "com/novitechie/rules/VMOptionsRule", "hook", "()Ljava/nio/file/Path;", false));
list.add(new InsnNode(ARETURN));
list.add(labelNode);
m.instructions.insert(list);

31
src/main/java/com/novitechie/rules/ClassRule.java Normal file
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@@ -0,0 +1,31 @@
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.util.ArrayList;
import java.util.List;
/**
* @author YeloChick
*/
public class ClassRule {
private static final List<String> PREVENT_LOAD_METHOD = new ArrayList<String>() {
{
add("findBootstrapClass");
}
};
public static void checkMethod(String name) throws Exception {
if (PREVENT_LOAD_METHOD.stream().anyMatch(name::equals)) {
DebugInfo.output("======================LoadMethod: " + name);
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
DebugInfo.output("===========================stackTrace: ");
for (StackTraceElement stackTraceElement : stackTrace) {
DebugInfo.output(stackTraceElement.getClassName() + ":" + stackTraceElement.getMethodName());
}
throw new NoSuchMethodException();
}
}
}

34
src/main/java/com/novitechie/rules/IdeaPluginRule.java Normal file
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@@ -0,0 +1,34 @@
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.util.ArrayList;
import java.util.List;
/**
* @author YeloChick
*/
public class IdeaPluginRule {
private static final List<String> PREVENT_LOAD_PLUGINS = new ArrayList<String>() {
{
add("io.zhile.research.ide-eval-resetter");
add("Nasller.License");
add("nasller");
add("manifold.ij");
}
};
public static boolean check(String name) {
boolean f = PREVENT_LOAD_PLUGINS.stream().anyMatch(name::equals);
if (f) {
DebugInfo.output("======================LoadPlugin: " + name);
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
DebugInfo.output("===========================stackTrace: ");
for (StackTraceElement stackTraceElement : stackTrace) {
DebugInfo.output(stackTraceElement.getClassName() + ":" + stackTraceElement.getMethodName());
}
}
return f;
}
}

30
src/main/java/com/novitechie/rules/LoadClassRule.java Normal file
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@@ -0,0 +1,30 @@
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.util.ArrayList;
import java.util.List;
public class LoadClassRule {
private static final List<String> PREVENT_LOAD_PACKAGES = new ArrayList<String>() {
{
// add("com.novitechie");
add("com.janetfilter");
add("jdk.internal.org.objectweb.asm");
}
};
public static void check(String name) throws Exception {
if (PREVENT_LOAD_PACKAGES.stream().anyMatch(name::startsWith)) {
DebugInfo.output("======================LoadClass: " + name);
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
DebugInfo.output("===========================stackTrace: ");
for (StackTraceElement stackTraceElement : stackTrace) {
DebugInfo.output(stackTraceElement.getClassName() + ":" + stackTraceElement.getMethodName());
}
throw new ClassNotFoundException(name);
}
}
}

33
src/main/java/com/novitechie/rules/ResourceRule.java Normal file
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@@ -0,0 +1,33 @@
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.util.ArrayList;
import java.util.List;
/**
* @author YeloChick
*/
public class ResourceRule {
private static final List<String> PREVENT_LOAD_RESOURCE = new ArrayList<String>() {
{
add("/6c81ec87e55d331c267262e892427a3d93d76683.txt");
add("/com/janetfilter");
}
};
public static boolean check(String name) {
boolean f = PREVENT_LOAD_RESOURCE.stream().anyMatch(name::startsWith);
if (f) {
DebugInfo.output("======================LoadResource: " + name);
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
DebugInfo.output("===========================stackTrace: ");
for (StackTraceElement stackTraceElement : stackTrace) {
DebugInfo.output(stackTraceElement.getClassName() + ":" + stackTraceElement.getMethodName());
}
return true;
}
return false;
}
}

7
src/main/java/com/novitechie/StackTraceRule.java → src/main/java/com/novitechie/rules/StackTraceRule.java
View File

@@ -1,4 +1,6 @@
package com.novitechie;
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.util.Calendar;
import java.util.Date;
@@ -23,7 +25,8 @@ public class StackTraceRule {
for (StackTraceElement stackTraceElement : stackTrace) {
if (!PACKAGE_NAME_PATTERN.matcher(stackTraceElement.getMethodName()).matches()) {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DAY_OF_MONTH, 30);
calendar.add(Calendar.DAY_OF_MONTH, 60);
DebugInfo.output("===========================getLicenseExpirationDate");
return calendar.getTime();
}
}

55
src/main/java/com/novitechie/rules/SystemRule.java Normal file
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@@ -0,0 +1,55 @@
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.util.ArrayList;
import java.util.List;
/**
* @author YeloChick
*/
public class SystemRule {
private static final List<String> PREVENT_LOAD_ENV = new ArrayList<String>() {
{
add("_VM_OPTIONS");
add("JANF_DEBUG");
add("JANF_OUTPUT");
}
};
private static final List<String> PREVENT_LOAD_PROPERTY = new ArrayList<String>() {
{
add("janf.debug");
add("janf.output");
}
};
public static boolean checkEnv(String name) {
boolean f = PREVENT_LOAD_ENV.stream().anyMatch(name::startsWith) || PREVENT_LOAD_ENV.stream().anyMatch(name::endsWith);
if (f) {
DebugInfo.output("======================LoadEnv: " + name);
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
DebugInfo.output("===========================stackTrace: ");
for (StackTraceElement stackTraceElement : stackTrace) {
DebugInfo.output(stackTraceElement.getClassName() + ":" + stackTraceElement.getMethodName());
}
return true;
}
return false;
}
public static boolean checkProperty(String name) {
boolean f = PREVENT_LOAD_PROPERTY.stream().anyMatch(name::equals);
if (f) {
DebugInfo.output("======================LoadProperty: " + name);
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
DebugInfo.output("===========================stackTrace: ");
for (StackTraceElement stackTraceElement : stackTrace) {
DebugInfo.output(stackTraceElement.getClassName() + ":" + stackTraceElement.getMethodName());
}
return true;
}
return false;
}
}

29
src/main/java/com/novitechie/rules/VMOptionsRule.java Normal file
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@@ -0,0 +1,29 @@
package com.novitechie.rules;
import com.janetfilter.core.commons.DebugInfo;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Path;
/**
* @author YeloChick
*/
public class VMOptionsRule {
public static Path hook() {
String tmpdir = System.getProperty("java.io.tmpdir");
File file = new File(tmpdir, "fake.vmoptions");
if (file.exists()) {
return file.toPath();
}
try (FileOutputStream fos = new FileOutputStream(file)) {
fos.write("# This file is created by plugin-privacy".getBytes());
return file.toPath();
} catch (IOException e) {
DebugInfo.output("create temp file error", e);
return null;
}
}
}