From bff441b07e8dbed02c93eda6cad7cbde602e2fc1 Mon Sep 17 00:00:00 2001
From: fankesyooni <qzmmcn@163.com>
Date: Wed, 27 Jul 2022 23:48:50 +0800
Subject: [PATCH] Added systemContext function in PackageParam

---
 docs/api/public/PackageParam.md               | 14 ++++++++
 docs/config/api-exception.md                  | 19 ++++++++++
 .../yukihookapi/hook/param/PackageParam.kt    | 35 +++++++++++--------
 .../hook/xposed/bridge/YukiHookBridge.kt      | 16 ++++++---
 4 files changed, 66 insertions(+), 18 deletions(-)

diff --git a/docs/api/public/PackageParam.md b/docs/api/public/PackageParam.md
index 99377efb..544b132a 100644
--- a/docs/api/public/PackageParam.md
+++ b/docs/api/public/PackageParam.md
@@ -72,6 +72,20 @@ val appResources：Resources
 
 !> 你只能在 `HookResources.hook` 方法体内或 `appContext` 装载完毕时进行调用。
 
+### systemContext [field]
+
+```kotlin
+val systemContext: Context
+```
+
+**变更记录**
+
+`v1.0.93` `新增`
+
+**功能描述**
+
+> 获取当前系统框架的 `Context`。
+
 ### processName [field]
 
 ```kotlin
diff --git a/docs/config/api-exception.md b/docs/config/api-exception.md
index 9fa07c75..09da9dc4 100644
--- a/docs/config/api-exception.md
+++ b/docs/config/api-exception.md
@@ -456,6 +456,25 @@ Resources 的 Hook 并非类似方法的 Hook，其必须拥有完整的名称
 
 > 这些异常会直接导致 APP 停止运行(FC)，同时会在控制台打印 `E` 级别的日志，还会造成 Hook 进程“死掉”。
 
+!> `IllegalStateException` Failed to got SystemContext
+
+**异常原因**
+
+在被 Hook 的宿主内调用了 `systemContext` 但并未成功获取到实例对象。
+
+> 示例如下
+
+```kotlin
+encase {
+    // 调用了此变量
+    systemContext...
+}
+```
+
+**解决方案**
+
+这种情况不应该存在，由于 `systemContext` 通过反射从 `ActivityThread` 中得到，除非系统进程发生异常，否则获取到的对象不会为空。
+
 !> `IllegalStateException` App is dead, You cannot call to appContext
 
 **异常原因**
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
index f4f087df..0bdb41a5 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
@@ -85,20 +85,6 @@ open class PackageParam internal constructor(@PublishedApi internal var wrapper:
      */
     val appInfo get() = wrapper?.appInfo ?: YukiHookAppHelper.currentApplicationInfo() ?: ApplicationInfo()
 
-    /**
-     * 获取当前 Hook APP 的进程名称
-     *
-     * 默认的进程名称是 [packageName]
-     * @return [String]
-     */
-    val processName get() = wrapper?.processName ?: YukiHookAppHelper.currentProcessName() ?: packageName
-
-    /**
-     * 获取当前 Hook APP 的包名
-     * @return [String]
-     */
-    val packageName get() = wrapper?.packageName ?: YukiHookAppHelper.currentPackageName() ?: ""
-
     /**
      * 获取当前 Hook APP 的 [Application] 实例
      *
@@ -117,6 +103,27 @@ open class PackageParam internal constructor(@PublishedApi internal var wrapper:
      */
     val appResources get() = wrapper?.appResources ?: appContext.resources ?: error("You cannot call to appResources in this time")
 
+    /**
+     * 获取当前系统框架的 [Context]
+     * @return [Context] ContextImpl 实例对象
+     * @throws IllegalStateException 如果获取不到系统框架的 [Context]
+     */
+    val systemContext get() = YukiHookBridge.systemContext
+
+    /**
+     * 获取当前 Hook APP 的进程名称
+     *
+     * 默认的进程名称是 [packageName]
+     * @return [String]
+     */
+    val processName get() = wrapper?.processName ?: YukiHookAppHelper.currentProcessName() ?: packageName
+
+    /**
+     * 获取当前 Hook APP 的包名
+     * @return [String]
+     */
+    val packageName get() = wrapper?.packageName ?: YukiHookAppHelper.currentPackageName() ?: ""
+
     /**
      * 获取当前 Hook APP 是否为第一个 [Application]
      * @return [Boolean]
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/xposed/bridge/YukiHookBridge.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/xposed/bridge/YukiHookBridge.kt
index 0f5404ba..5a2c088f 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/xposed/bridge/YukiHookBridge.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/xposed/bridge/YukiHookBridge.kt
@@ -46,10 +46,7 @@ import com.highcapable.yukihookapi.hook.param.PackageParam
 import com.highcapable.yukihookapi.hook.param.type.HookEntryType
 import com.highcapable.yukihookapi.hook.param.wrapper.HookParamWrapper
 import com.highcapable.yukihookapi.hook.param.wrapper.PackageParamWrapper
-import com.highcapable.yukihookapi.hook.type.android.ApplicationClass
-import com.highcapable.yukihookapi.hook.type.android.ConfigurationClass
-import com.highcapable.yukihookapi.hook.type.android.ContextClass
-import com.highcapable.yukihookapi.hook.type.android.InstrumentationClass
+import com.highcapable.yukihookapi.hook.type.android.*
 import com.highcapable.yukihookapi.hook.type.java.IntType
 import com.highcapable.yukihookapi.hook.xposed.bridge.dummy.YukiModuleResources
 import com.highcapable.yukihookapi.hook.xposed.bridge.dummy.YukiResources
@@ -122,6 +119,17 @@ object YukiHookBridge {
      */
     internal val moduleGeneratedVersion get() = YukiHookBridge_Injector.getModuleGeneratedVersion()
 
+    /**
+     * 获取当前系统框架的 [Context]
+     * @return [Context] ContextImpl 实例对象
+     * @throws IllegalStateException 如果获取不到系统框架的 [Context]
+     */
+    internal val systemContext
+        get() = runCatching {
+            Hooker.findMethod(ActivityThreadClass, name = "getSystemContext")
+                .invoke(Hooker.findMethod(ActivityThreadClass, name = "currentActivityThread").invoke(null)) as? Context?
+        }.getOrNull() ?: error("Failed to got SystemContext")
+
     /**
      * 模块是否装载了 Xposed 回调方法
      *