Use new service to download uninstall.zip

app/src/main/java/com/topjohnwu/magisk/model/download/DownloadService.kt

@@ -1,13 +1,11 @@
 package com.topjohnwu.magisk.model.download
 
-import android.Manifest
 import android.annotation.SuppressLint
 import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
 import android.os.Build
 import android.webkit.MimeTypeMap
-import androidx.annotation.RequiresPermission
 import androidx.core.app.NotificationCompat
 import com.topjohnwu.magisk.ClassMap
 import com.topjohnwu.magisk.R
@@ -115,7 +113,6 @@ open class DownloadService : RemoteFileService() {
 
     companion object {
 
-        @RequiresPermission(allOf = [Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE])
         inline operator fun invoke(context: Context, argBuilder: Builder.() -> Unit) {
             val builder = Builder().apply(argBuilder)
             val intent = Intent(context, ClassMap[DownloadService::class.java])

app/src/main/java/com/topjohnwu/magisk/model/entity/internal/DownloadSubject.kt

@@ -49,6 +49,17 @@ sealed class DownloadSubject : Parcelable {
             }
         }
 
+        @Parcelize
+        protected class Uninstall : Magisk() {
+            override val configuration: Configuration get() = Configuration.Uninstall
+            override val url: String get() = Info.remote.uninstaller.link
+
+            @IgnoredOnParcel
+            override val file by lazy {
+                get<Context>().cachedFile("uninstall.zip")
+            }
+        }
+
         @Parcelize
         protected class Download : Magisk() {
             override val configuration: Configuration get() = Configuration.Download
@@ -63,6 +74,7 @@ sealed class DownloadSubject : Parcelable {
         companion object {
             operator fun invoke(configuration: Configuration) = when (configuration) {
                 Configuration.Download -> Download()
+                Configuration.Uninstall -> Uninstall()
                 else -> Flash(configuration)
             }
         }