Run hysteria using a plugin-like method

app/src/main/kotlin/com/neko/v2ray/AngApplication.kt

@@ -1,6 +1,8 @@
 package com.neko.v2ray
 
 import android.content.Context
+import android.content.pm.PackageManager
+import android.os.Build
 import androidx.multidex.MultiDexApplication
 import androidx.work.Configuration
 import androidx.work.WorkManager
@@ -27,4 +29,10 @@ class AngApplication : MultiDexApplication() {
         WorkManager.initialize(this, workManagerConfiguration)
         SettingsManager.initRoutingRulesets(this)
     }
+
+    fun getPackageInfo(packageName: String) = packageManager.getPackageInfo(
+        packageName, if (Build.VERSION.SDK_INT >= 28) PackageManager.GET_SIGNING_CERTIFICATES
+        else @Suppress("DEPRECATION") PackageManager.GET_SIGNATURES
+    )!!
+
 }

app/src/main/kotlin/com/neko/v2ray/dto/Hysteria2Bean.kt

@@ -0,0 +1,17 @@
+package com.neko.v2ray.dto
+
+data class Hysteria2Bean(
+    val server: String?,
+    val auth: String?,
+    val lazy: Boolean? = true,
+    val socks5: Socks5Bean?,
+    val tls: TlsBean?
+) {
+    data class Socks5Bean(
+        val listen: String?,
+    )
+
+    data class TlsBean(
+        val sni: String?
+    )
+}

app/src/main/kotlin/com/neko/v2ray/extension/_Ext.kt

@@ -1,6 +1,9 @@
 package com.neko.v2ray.extension
 
+import android.content.BroadcastReceiver
 import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
 import android.os.Build
 import android.widget.Toast
 import com.neko.v2ray.AngApplication
@@ -56,4 +59,26 @@ val URI.idnHost: String
 
 fun String.removeWhiteSpace(): String = replace("\\s+".toRegex(), "")
 
-fun String.toLongEx(): Long = toLongOrNull() ?: 0
+fun String.toLongEx(): Long = toLongOrNull() ?: 0
+
+fun Context.listenForPackageChanges(onetime: Boolean = true, callback: () -> Unit) =
+    object : BroadcastReceiver() {
+        override fun onReceive(context: Context, intent: Intent) {
+            callback()
+            if (onetime) context.unregisterReceiver(this)
+        }
+    }.apply {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            registerReceiver(this, IntentFilter().apply {
+                addAction(Intent.ACTION_PACKAGE_ADDED)
+                addAction(Intent.ACTION_PACKAGE_REMOVED)
+                addDataScheme("package")
+            }, Context.RECEIVER_EXPORTED)
+        } else {
+            registerReceiver(this, IntentFilter().apply {
+                addAction(Intent.ACTION_PACKAGE_ADDED)
+                addAction(Intent.ACTION_PACKAGE_REMOVED)
+                addDataScheme("package")
+            })
+        }
+    }

app/src/main/kotlin/com/neko/v2ray/plugin/NativePlugin.kt

@@ -0,0 +1,32 @@
+/******************************************************************************
+ *                                                                            *
+ * Copyright (C) 2021 by nekohasekai <contact-sagernet@sekai.icu>             *
+ * Copyright (C) 2021 by Max Lv <max.c.lv@gmail.com>                          *
+ * Copyright (C) 2021 by Mygod Studio <contact-shadowsocks-android@mygod.be>  *
+ *                                                                            *
+ * This program is free software: you can redistribute it and/or modify       *
+ * it under the terms of the GNU General Public License as published by       *
+ * the Free Software Foundation, either version 3 of the License, or          *
+ *  (at your option) any later version.                                       *
+ *                                                                            *
+ * This program is distributed in the hope that it will be useful,            *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
+ * GNU General Public License for more details.                               *
+ *                                                                            *
+ * You should have received a copy of the GNU General Public License          *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
+ *                                                                            *
+ ******************************************************************************/
+
+package com.neko.v2ray.plugin
+
+import android.content.pm.ResolveInfo
+
+class NativePlugin(resolveInfo: ResolveInfo) : ResolvedPlugin(resolveInfo) {
+    init {
+        check(resolveInfo.providerInfo != null)
+    }
+
+    override val componentInfo get() = resolveInfo.providerInfo!!
+}

app/src/main/kotlin/com/neko/v2ray/plugin/Plugin.kt

@@ -0,0 +1,43 @@
+/******************************************************************************
+ *                                                                            *
+ * Copyright (C) 2021 by nekohasekai <contact-sagernet@sekai.icu>             *
+ * Copyright (C) 2021 by Max Lv <max.c.lv@gmail.com>                          *
+ * Copyright (C) 2021 by Mygod Studio <contact-shadowsocks-android@mygod.be>  *
+ *                                                                            *
+ * This program is free software: you can redistribute it and/or modify       *
+ * it under the terms of the GNU General Public License as published by       *
+ * the Free Software Foundation, either version 3 of the License, or          *
+ *  (at your option) any later version.                                       *
+ *                                                                            *
+ * This program is distributed in the hope that it will be useful,            *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
+ * GNU General Public License for more details.                               *
+ *                                                                            *
+ * You should have received a copy of the GNU General Public License          *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
+ *                                                                            *
+ ******************************************************************************/
+
+package com.neko.v2ray.plugin
+
+import android.graphics.drawable.Drawable
+
+abstract class Plugin {
+    abstract val id: String
+    abstract val label: CharSequence
+    abstract val version: Int
+    abstract val versionName: String
+    open val icon: Drawable? get() = null
+    open val defaultConfig: String? get() = null
+    open val packageName: String get() = ""
+    open val directBootAware: Boolean get() = true
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        return id == (other as Plugin).id
+    }
+
+    override fun hashCode() = id.hashCode()
+}

app/src/main/kotlin/com/neko/v2ray/plugin/PluginContract.kt

@@ -0,0 +1,33 @@
+/******************************************************************************
+ *                                                                            *
+ * Copyright (C) 2021 by nekohasekai <contact-sagernet@sekai.icu>             *
+ *                                                                            *
+ * This program is free software: you can redistribute it and/or modify       *
+ * it under the terms of the GNU General Public License as published by       *
+ * the Free Software Foundation, either version 3 of the License, or          *
+ *  (at your option) any later version.                                       *
+ *                                                                            *
+ * This program is distributed in the hope that it will be useful,            *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
+ * GNU General Public License for more details.                               *
+ *                                                                            *
+ * You should have received a copy of the GNU General Public License          *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
+ *                                                                            *
+ ******************************************************************************/
+
+package com.neko.v2ray.plugin
+
+object PluginContract {
+
+    const val ACTION_NATIVE_PLUGIN = "io.nekohasekai.sagernet.plugin.ACTION_NATIVE_PLUGIN"
+    const val EXTRA_ENTRY = "io.nekohasekai.sagernet.plugin.EXTRA_ENTRY"
+    const val METADATA_KEY_ID = "io.nekohasekai.sagernet.plugin.id"
+    const val METADATA_KEY_EXECUTABLE_PATH = "io.nekohasekai.sagernet.plugin.executable_path"
+    const val METHOD_GET_EXECUTABLE = "sagernet:getExecutable"
+
+    const val COLUMN_PATH = "path"
+    const val COLUMN_MODE = "mode"
+    const val SCHEME = "plugin"
+}

app/src/main/kotlin/com/neko/v2ray/plugin/PluginList.kt

@@ -0,0 +1,53 @@
+/******************************************************************************
+ *                                                                            *
+ * Copyright (C) 2021 by nekohasekai <contact-sagernet@sekai.icu>             *
+ * Copyright (C) 2021 by Max Lv <max.c.lv@gmail.com>                          *
+ * Copyright (C) 2021 by Mygod Studio <contact-shadowsocks-android@mygod.be>  *
+ *                                                                            *
+ * This program is free software: you can redistribute it and/or modify       *
+ * it under the terms of the GNU General Public License as published by       *
+ * the Free Software Foundation, either version 3 of the License, or          *
+ *  (at your option) any later version.                                       *
+ *                                                                            *
+ * This program is distributed in the hope that it will be useful,            *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
+ * GNU General Public License for more details.                               *
+ *                                                                            *
+ * You should have received a copy of the GNU General Public License          *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
+ *                                                                            *
+ ******************************************************************************/
+
+package com.neko.v2ray.plugin
+
+import android.content.Intent
+import android.content.pm.PackageManager
+import com.neko.v2ray.AngApplication
+
+class PluginList : ArrayList<Plugin>() {
+    init {
+        addAll(
+            AngApplication.application.packageManager.queryIntentContentProviders(
+            Intent(PluginContract.ACTION_NATIVE_PLUGIN), PackageManager.GET_META_DATA)
+            .filter { it.providerInfo.exported }.map { NativePlugin(it) })
+    }
+
+    val lookup = mutableMapOf<String, Plugin>().apply {
+        for (plugin in this@PluginList.toList()) {
+            fun check(old: Plugin?) {
+                if (old != null && old != plugin) {
+                    this@PluginList.remove(old)
+                }
+               /* if (old != null && old !== plugin) {
+                    val packages = this@PluginList.filter { it.id == plugin.id }
+                        .joinToString { it.packageName }
+                    val message = "Conflicting plugins found from: $packages"
+                    Toast.makeText(SagerNet.application, message, Toast.LENGTH_LONG).show()
+                    throw IllegalStateException(message)
+                }*/
+            }
+            check(put(plugin.id, plugin))
+        }
+    }
+}