HighCapable/YukiHookAPI
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Modify move ClassLoader.fetching in PackageParam to ClassLoader.onLoadClass in ReflectionFactory and fix reuse problem

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This commit is contained in:
fankesyooni
2022-09-13 23:45:15 +08:00
parent 9f68066d5e
commit d345a5d94b
6 changed files with 93 additions and 78 deletions
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13
yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/factory/ReflectionFactory.kt
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@@ -37,6 +37,7 @@ import com.highcapable.yukihookapi.hook.core.finder.members.MethodFinder
import com.highcapable.yukihookapi.hook.core.finder.tools.ReflectionTool
import com.highcapable.yukihookapi.hook.core.finder.type.ModifierRules
import com.highcapable.yukihookapi.hook.xposed.bridge.status.YukiHookModuleStatus
import com.highcapable.yukihookapi.hook.xposed.parasitic.AppParasitics
import java.lang.reflect.Constructor
import java.lang.reflect.Field
import java.lang.reflect.Member
@@ -65,6 +66,18 @@ enum class MembersType {
CONSTRUCTOR
}
/**
* 监听当前 [ClassLoader] 的 [ClassLoader.loadClass] 方法装载
*
* - ❗请注意只有当前 [ClassLoader] 有主动使用 [ClassLoader.loadClass] 事件时才能被捕获
*
* - ❗这是一个实验性功能 - 一般情况下不会用到此方法 - 不保证不会发生错误
*
* - ❗只能在 (Xposed) 宿主环境使用此功能 - 其它环境下使用将不生效且会打印警告信息
* @param result 回调 - ([Class] 实例对象)
*/
fun ClassLoader.onLoadClass(result: (Class<*>) -> Unit) = AppParasitics.hookClassLoader(loader = this, result)
/**
* 当前 [Class] 是否有继承关系 - 父类是 [Any] 将被认为没有继承关系
* @return [Boolean]

10
yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
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@@ -378,16 +378,6 @@ open class PackageParam internal constructor(@PublishedApi internal var wrapper:
*/
fun findClass(vararg name: String, loader: ClassLoader? = appClassLoader) = VariousClass(*name).toHookClass(loader)
/**
* 监听并 Hook 当前 [ClassLoader] 的 [ClassLoader.loadClass] 方法
*
* - ❗请注意只有当前 [ClassLoader] 有主动使用 [ClassLoader.loadClass] 事件时才能被捕获
*
* - ❗这是一个实验性功能 - 一般情况下不会用到此方法 - 不保证不会发生错误
* @param result 回调 - ([Class] 实例对象,[Boolean] 是否 resolve)
*/
fun ClassLoader.fetching(result: (clazz: Class<*>, resolve: Boolean) -> Unit) = AppParasitics.hookClassLoader(loader = this, result)
/**
* Hook 方法、构造方法
*

20
yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/xposed/parasitic/AppParasitics.kt
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@@ -71,6 +71,12 @@ internal object AppParasitics {
/** [Activity] 代理是否已经注册 */
private var isActivityProxyRegister = false
/** [ClassLoader] 是否已被 Hook */
private var isClassLoaderHooked = false
/** [ClassLoader] 监听回调数组 */
private var classLoaderCallbacks = HashMap<Int, (Class<*>) -> Unit>()
/**
* 当前 Hook APP (宿主) 的全局生命周期 [Application]
*
@@ -234,16 +240,22 @@ internal object AppParasitics {
/**
* 监听并 Hook 当前 [ClassLoader] 的 [ClassLoader.loadClass] 方法
* @param loader 当前 [ClassLoader]
* @param result 回调 - ([Class] 实例对象,[Boolean] 是否 resolve)
* @param result 回调 - ([Class] 实例对象)
*/
internal fun hookClassLoader(loader: ClassLoader?, result: (clazz: Class<*>, resolve: Boolean) -> Unit) {
internal fun hookClassLoader(loader: ClassLoader?, result: (Class<*>) -> Unit) {
if (loader == null) return
if (YukiHookBridge.hasXposedBridge.not()) return yLoggerW(msg = "You can only use hook ClassLoader method in Xposed Environment")
classLoaderCallbacks[loader.hashCode()] = result
if (isClassLoaderHooked) return
runCatching {
YukiHookHelper.hook(JavaClassLoader.method { name = "loadClass"; param(StringType, BooleanType) }, object : YukiMemberHook() {
override fun afterHookedMember(param: Param) {
if (param.instance?.javaClass?.name == loader?.javaClass?.name)
(param.result as? Class<*>?)?.also { result(it, param.args?.get(1) as? Boolean ?: false) }
param.instance?.also { loader ->
(param.result as? Class<*>?)?.also { classLoaderCallbacks[loader.hashCode()]?.invoke(it) }
}
}
})
isClassLoaderHooked = true
}.onFailure { yLoggerW(msg = "Try to hook ClassLoader failed: $it") }
}