Init

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

app/.gitignore

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+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "cn.wankkoree.xposed.enablewebviewdebugging"
+        minSdk 21
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled true
+            zipAlignEnabled true
+            shrinkResources  true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.release
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+    compileOnly 'de.robv.android.xposed:api:82'
+    compileOnly 'de.robv.android.xposed:api:82:sources'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
+
+-keep public class cn.wankkoree.xposed.enablewebviewdebugging.MainActivity

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="cn.wankkoree.xposed.enablewebviewdebugging">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true">
+        <meta-data
+            android:name="xposedmodule"
+            android:value="true" />
+        <meta-data
+            android:name="xposeddescription"
+            android:value="@string/app_description" />
+        <meta-data
+            android:name="xposedminversion"
+            android:value="53"/>
+    </application>
+
+</manifest>

app/src/main/assets/xposed_init

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+cn.wankkoree.xposed.enablewebviewdebugging.MainActivity

app/src/main/java/cn/wankkoree/xposed/enablewebviewdebugging/MainActivity.kt

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+package cn.wankkoree.xposed.enablewebviewdebugging
+
+import de.robv.android.xposed.IXposedHookLoadPackage
+import de.robv.android.xposed.XC_MethodHook
+import de.robv.android.xposed.XposedBridge
+import de.robv.android.xposed.XposedHelpers
+import de.robv.android.xposed.callbacks.XC_LoadPackage.LoadPackageParam
+import kotlin.collections.HashSet
+
+
+class MainActivity : IXposedHookLoadPackage {
+    private val webViewClassesHashSet = HashSet<String>()
+    private val webViewClientClassesHashSet = HashSet<String>()
+    private val loadVConsole = """
+        if(typeof loadJS === 'undefined'){
+          function loadJS(url, callback) {
+            var script = document.createElement("script"),
+            fn = callback || (()=>{});
+            script.type = "text/javascript";
+            script.onload = ()=>fn();
+            script.src = url;
+            document.getElementsByTagName("head")[0].appendChild(script);
+          }
+        }
+        if(typeof VConsole === 'undefined')
+          loadJS("https://cdn.bootcdn.net/ajax/libs/vConsole/3.11.2/vconsole.min.js", ()=>new VConsole());
+    """.trimIndent()
+
+    @Throws(Throwable::class)
+    override fun handleLoadPackage(lpparam: LoadPackageParam) {
+        val packageName = lpparam.packageName
+
+        if (packageName.equals("com.android.webview"))
+            return // 不 hook WebView 本身
+
+        XposedBridge.log("[EnableWebViewDebugging]: <$packageName> loading.")
+        hookWebView(lpparam.classLoader, packageName)
+        hookWebViewClient(lpparam.classLoader, packageName)
+    }
+
+    /** Hook WebView类，实现：
+     *
+     * WebView.setWebContentsDebuggingEnabled(true)
+     *
+     * webView.getSettings().setJavaScriptEnabled(true)
+     **/
+    private fun hookWebView(classLoader: ClassLoader?, packageName: String?) {
+        val targetClasses = arrayOf(
+            "android.webkit.WebView",
+            "com.tencent.smtt.sdk.WebView",
+        )
+        for (targetClass in targetClasses) {
+            val clazz = try{ XposedHelpers.findClass(targetClass, classLoader) }catch(e: XposedHelpers.ClassNotFoundError){null}
+            if (clazz != null && checkWebView(clazz)){  // 目标类存在且未hook
+                XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(${getClassString(clazz)}) hooking.")
+                XposedBridge.hookAllConstructors(clazz, object: XC_MethodHook() {
+                    // 创建对象时hook为默认开启调试、JS
+                    override fun afterHookedMethod(param: MethodHookParam) {
+                        XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(new ${getClassString(clazz)}).setWebContentsDebuggingEnabled(true)")
+                        XposedHelpers.callStaticMethod(clazz, "setWebContentsDebuggingEnabled", true)
+
+                        XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(new ${getClassString(clazz)}).setJavaScriptEnabled(true)")
+                        val webView = param.thisObject
+                        val webSettings = XposedHelpers.callMethod(webView, "getSettings")
+                        XposedHelpers.callMethod(webSettings, "setJavaScriptEnabled", true)
+                        XposedBridge.hookAllMethods(webSettings.javaClass, "setJavaScriptEnabled", object: XC_MethodHook() {
+                            // 声明不开启JS时hook为开启JS
+                            override fun beforeHookedMethod(param: MethodHookParam) {
+                                if (param.args[0] != true) {
+                                    XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(${getClassString(clazz)}).setJavaScriptEnabled(${param.args[0]} -> true)")
+                                    param.args[0] = true
+                                }
+                            }
+                        })
+                    }
+                })
+                XposedBridge.hookAllMethods(clazz, "setWebContentsDebuggingEnabled", object: XC_MethodHook() {
+                    // 声明不开启调试时hook为开启调试
+                    override fun beforeHookedMethod(param: MethodHookParam) {
+                        if (param.args[0] != true) {
+                            XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(${getClassString(clazz)}).setWebContentsDebuggingEnabled(${param.args[0]} -> true)")
+                            param.args[0] = true
+                        }
+                    }
+                })
+
+            }
+        }
+    }
+
+    /** Hook WebViewClient类，实现：
+     *
+     * WebViewClient.setWebContentsDebuggingEnabled(true)
+     *
+     * WebViewClient.getSettings().setJavaScriptEnabled(true)
+     **/
+    private fun hookWebViewClient(classLoader: ClassLoader?, packageName: String?) {
+        val targetClasses = arrayOf(
+            arrayOf("android.webkit.WebViewClient", "android.webkit.ValueCallback"),
+            arrayOf("com.tencent.smtt.sdk.WebViewClient", "com.tencent.smtt.sdk.ValueCallback"),
+        )
+        for (targetClass in targetClasses) {
+            val clazz = try{ XposedHelpers.findClass(targetClass[0], classLoader) }catch(e: XposedHelpers.ClassNotFoundError){null}
+            if (clazz != null && checkWebViewClient(clazz)){  // 目标类存在且未hook
+                XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(${getClassString(clazz)}) hooking.")
+                XposedBridge.hookAllMethods(clazz, "onPageFinished", object: XC_MethodHook() {
+                    // 设置WebViewClient时，设置页面开始加载时注入vConsole
+                    override fun beforeHookedMethod(param: MethodHookParam) {
+                        XposedBridge.log("[EnableWebViewDebugging]: <$packageName>(new ${getClassString(clazz)}).onPageFinished(vConsole)")
+                        val webView = param.args[0]
+                        XposedHelpers.callMethod(webView, "evaluateJavascript", arrayOf(String::class.java, XposedHelpers.findClass(targetClass[1], classLoader)), "javascript:$loadVConsole", null)
+                    }
+                })
+            }
+        }
+    }
+
+    private fun getClassString(clazz: Class<*>): String {
+        return "${clazz.name}@${clazz.hashCode()}<=${clazz.classLoader.javaClass.name}@${clazz.classLoader!!.hashCode()}"
+    }
+
+    private fun checkWebView(targetClass: Class<*>): Boolean {
+        val targetClassS = getClassString(targetClass)
+        return if (webViewClassesHashSet.contains(targetClassS)) {
+            false
+        } else {
+            webViewClassesHashSet.add(targetClassS)
+            true
+        }
+    }
+
+    private fun checkWebViewClient(targetClass: Class<*>): Boolean {
+        val targetClassS = getClassString(targetClass)
+        return if (webViewClientClassesHashSet.contains(targetClassS)) {
+            false
+        } else {
+            webViewClientClassesHashSet.add(targetClassS)
+            true
+        }
+    }
+
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>