Java scala innerClass,查找sec Bug可预测\u随机\u scala
我想改进可预测的随机SCALA代码的检测Java scala innerClass,查找sec Bug可预测\u随机\u scala,java,spotbugs,find-sec-bugs,Java,Spotbugs,Find Sec Bugs,我想改进可预测的随机SCALA代码的检测 methodName包含“令牌”、“id”、“csrf”等 查找现有的检测逻辑 但在斯卡拉。scala源代码和javap-v,您可以在下面看到 class PredictableRandomScala { def generateToken(): String ={ val result = Seq.fill(16)(Random.nextInt()) result.map("%02x" format _).mkString
- methodName包含“令牌”、“id”、“csrf”等
- 查找现有的检测逻辑
class PredictableRandomScala {
def generateToken(): String ={
val result = Seq.fill(16)(Random.nextInt())
result.map("%02x" format _).mkString
}
}
{
public java.lang.String generateToken();
描述符:()Ljava/lang/String;
旗帜:ACC_PUBLIC
代码:
堆栈=5,局部变量=2,参数大小=1
0:getstatic#16//字段scala/collection/Seq$。模块$:Lscala/collection/Seq$;
3:bipush 16
5:new#18//class bugs/PredictableRandomScala$$anonfun$1
8:dup
9:aload_0
10:invokespecial#22//方法错误/PredictableRandomScala$$anonfun$1。”:(Lbugs/PredictableRandomScala;)V
13:invokevirtual#26//方法scala/collection/Seq$.fill:(ILscala/Function0;)Lscala/collection/GenTraversable;
16:checkcast#28//class scala/collection/Seq
19:astore_1
20:aload_1
21:new#30//class bugs/PredictableRandomScala$$anonfun$generateToken$1
24:dup
25:aload_0
26:invokespecial#31//方法错误/PredictableRandomScala$$anonfun$generateToken$1。”:(Lbugs/PredictableRandomScala;)V
29:getstatic#16//字段scala/collection/Seq$。模块$:Lscala/collection/Seq$;
32:invokevirtual#35//方法scala/collection/Seq$.canBuildFrom:()Lscala/collection/generic/canBuildFrom;
35:invokeinterface#39,3//接口方法scala/collection/Seq.map:(Lscala/Function1;Lscala/collection/generic/CanBuildFrom;)Ljava/lang/Object;
40:checkcast#41//class scala/collection/TraversableOnce
43:invokeinterface#44,1//InterfaceMethod scala/collection/TraversableOnce.mkString:()Ljava/lang/String;
48:轮到你了
LocalVariableTable:
起始长度插槽名称签名
0 49 0此Lbugs/PredictableRandomScala;
20 28 1结果列表/收集/顺序;
LineNumberTable:
第7行:0
第8行:20
公共bug.PredictableRandomScala();
描述符:()V
旗帜:ACC_PUBLIC
代码:
堆栈=1,局部变量=1,参数大小=1
0:aload_0
1:invokespecial#51//方法java/lang/Object。”“:()V
4:返回
LocalVariableTable:
起始长度插槽名称签名
0 5 0此Lbugs/PredictableRandomScala;
LineNumberTable:
第10行:0
}
源文件:“PredictableRandomScala.scala”
内部类:
公开决赛#18//类bug/PredictableRandomScala$$anonfun$1
公开决赛#30场//类bug/PredictableRandomScala$$anonfun$generateToken$1
运行时访问说明:
0:#6(#7=s#8)
错误:未知属性
ScalaSig:length=0x3
05 00 00
如您所见,scala使用innerClass,绕过了我的判断方法:xxxtoken方法是否调用Random。是否有任何API来获取并加载innerclass,或者是否有任何方法来实现此逻辑。我认为nextInt方法是在类“class bugs/PredictableRandomScala$$anonfun$generateToken$1”中调用的。Scala生成多个类。我认为nextInt方法是在类“class bugs/PredictableRandomScala$$anonfun$generateToken$1”中调用的。Scala生成多个类。
{
public java.lang.String generateToken();
descriptor: ()Ljava/lang/String;
flags: ACC_PUBLIC
Code:
stack=5, locals=2, args_size=1
0: getstatic #16 // Field scala/collection/Seq$.MODULE$:Lscala/collection/Seq$;
3: bipush 16
5: new #18 // class bugs/PredictableRandomScala$$anonfun$1
8: dup
9: aload_0
10: invokespecial #22 // Method bugs/PredictableRandomScala$$anonfun$1."<init>":(Lbugs/PredictableRandomScala;)V
13: invokevirtual #26 // Method scala/collection/Seq$.fill:(ILscala/Function0;)Lscala/collection/GenTraversable;
16: checkcast #28 // class scala/collection/Seq
19: astore_1
20: aload_1
21: new #30 // class bugs/PredictableRandomScala$$anonfun$generateToken$1
24: dup
25: aload_0
26: invokespecial #31 // Method bugs/PredictableRandomScala$$anonfun$generateToken$1."<init>":(Lbugs/PredictableRandomScala;)V
29: getstatic #16 // Field scala/collection/Seq$.MODULE$:Lscala/collection/Seq$;
32: invokevirtual #35 // Method scala/collection/Seq$.canBuildFrom:()Lscala/collection/generic/CanBuildFrom;
35: invokeinterface #39, 3 // InterfaceMethod scala/collection/Seq.map:(Lscala/Function1;Lscala/collection/generic/CanBuildFrom;)Ljava/lang/Object;
40: checkcast #41 // class scala/collection/TraversableOnce
43: invokeinterface #44, 1 // InterfaceMethod scala/collection/TraversableOnce.mkString:()Ljava/lang/String;
48: areturn
LocalVariableTable:
Start Length Slot Name Signature
0 49 0 this Lbugs/PredictableRandomScala;
20 28 1 result Lscala/collection/Seq;
LineNumberTable:
line 7: 0
line 8: 20
public bugs.PredictableRandomScala();
descriptor: ()V
flags: ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #51 // Method java/lang/Object."<init>":()V
4: return
LocalVariableTable:
Start Length Slot Name Signature
0 5 0 this Lbugs/PredictableRandomScala;
LineNumberTable:
line 10: 0
}
SourceFile: "PredictableRandomScala.scala"
InnerClasses:
public final #18; //class bugs/PredictableRandomScala$$anonfun$1
public final #30; //class bugs/PredictableRandomScala$$anonfun$generateToken$1
RuntimeVisibleAnnotations:
0: #6(#7=s#8)
Error: unknown attribute
ScalaSig: length = 0x3
05 00 00