🚀add: drawing the basic pages.

android/app/build.gradle

@@ -38,7 +38,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.elfor.vpn_app"
+        applicationId "com.elfor.sail_app"
         minSdkVersion 16
         targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()

android/app/src/debug/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.vpn_app">
+    package="com.example.sail_app">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->

android/app/src/main/AndroidManifest.xml

@@ -1,13 +1,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.vpn_app">
+    package="com.example.sail_app">
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide
          additional functionality it is fine to subclass or reimplement
          FlutterApplication and put your custom class here. -->
     <application
         android:name="io.flutter.app.FlutterApplication"
-        android:label="vpn_app"
+        android:label="sail_app"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"

android/app/src/main/kotlin/com/example/vpn_app/MainActivity.kt

@@ -1,4 +1,4 @@
-package com.example.vpn_app
+package com.example.sail_app
 
 import io.flutter.embedding.android.FlutterActivity
 

android/app/src/profile/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.vpn_app">
+    package="com.example.sail_app">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->

ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

ios/PacketTunnel/BridgingHeader.h

@@ -0,0 +1,13 @@
+//
+//  BridgingHeader.h
+//  PacketTunnel
+//
+//  Created by 林阿祁 on 2021/1/4.
+//
+
+#ifndef BridgingHeader_h
+#define BridgingHeader_h
+
+#import "leaf.h"
+
+#endif /* BridgingHeader_h */

ios/PacketTunnel/Info.plist

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>PacketTunnel</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.networkextension.packet-tunnel</string>
+		<key>NSExtensionPrincipalClass</key>
+		<string>$(PRODUCT_MODULE_NAME).PacketTunnelProvider</string>
+	</dict>
+</dict>
+</plist>

ios/PacketTunnel/PacketTunnel.entitlements

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.networking.networkextension</key>
+	<array>
+		<string>packet-tunnel-provider</string>
+	</array>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.com.kanshiyun.sail</string>
+	</array>
+</dict>
+</plist>

ios/PacketTunnel/PacketTunnelProvider.swift

@@ -0,0 +1,72 @@
+import NetworkExtension
+
+let appGroup = "group.com.kanshiyun.sail"
+
+let conf = """
+[General]
+loglevel = trace
+dns-server = 223.5.5.5, 114.114.114.114
+tun-fd = REPLACE-ME-WITH-THE-FD
+[Proxy]
+Direct = direct
+vmess-out = vmess, domain.com, 443, username=9bb8c108-3d92-4dfb-b557-7ff2a2b8d06d, ws=true, tls=true, ws-path=/v2
+[Rule]
+EXTERNAL, site:cn, Direct
+FINAL, vmess-out
+"""
+
+class PacketTunnelProvider: NEPacketTunnelProvider {
+
+    override func startTunnel(options: [String : NSObject]?, completionHandler: @escaping (Error?) -> Void) {
+        let tunnelNetworkSettings = createTunnelSettings()
+        setTunnelNetworkSettings(tunnelNetworkSettings) { [weak self] error in
+            let tunFd = self?.packetFlow.value(forKeyPath: "socket.fileDescriptor") as! Int32
+            let confWithFd = conf.replacingOccurrences(of: "REPLACE-ME-WITH-THE-FD", with: String(tunFd))
+            let url = FileManager().containerURL(forSecurityApplicationGroupIdentifier: appGroup)!.appendingPathComponent("running_config.conf")
+            do {
+                try confWithFd.write(to: url, atomically: false, encoding: .utf8)
+            } catch {
+                NSLog("fialed to write config file \(error)")
+            }
+            let path = url.absoluteString
+            let start = path.index(path.startIndex, offsetBy: 7)
+            let subpath = path[start..<path.endIndex]
+            DispatchQueue.global(qos: .userInteractive).async {
+                signal(SIGPIPE, SIG_IGN)
+                run_leaf(String(subpath))
+            }
+            completionHandler(nil)
+        }
+    }
+
+    override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
+        // Add code here to start the process of stopping the tunnel.
+        completionHandler()
+    }
+
+    override func handleAppMessage(_ messageData: Data, completionHandler: ((Data?) -> Void)?) {
+        // Add code here to handle the message.
+        if let handler = completionHandler {
+            handler(messageData)
+        }
+    }
+
+    override func sleep(completionHandler: @escaping () -> Void) {
+        // Add code here to get ready to sleep.
+        completionHandler()
+    }
+
+    override func wake() {
+        // Add code here to wake up.
+    }
+
+    func createTunnelSettings() -> NEPacketTunnelNetworkSettings  {
+        let newSettings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: "240.0.0.10")
+        newSettings.ipv4Settings = NEIPv4Settings(addresses: ["240.0.0.1"], subnetMasks: ["255.255.255.0"])
+        newSettings.ipv4Settings?.includedRoutes = [NEIPv4Route.`default`()]
+        newSettings.proxySettings = nil
+        newSettings.dnsSettings = NEDNSSettings(servers: ["223.5.5.5", "8.8.8.8"])
+        newSettings.mtu = 1500
+        return newSettings
+    }
+}

ios/PacketTunnel/libleaf/README

@@ -0,0 +1 @@
+Run the `misc/download_leaf.sh` script to download library files.

ios/PacketTunnel/libleaf/leaf.h

@@ -0,0 +1,6 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+void run_leaf(const char *path);

ios/Podfile

@@ -0,0 +1,41 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

ios/Podfile.lock

@@ -0,0 +1,28 @@
+PODS:
+  - Flutter (1.0.0)
+  - flutter_webview_plugin (0.0.1):
+    - Flutter
+  - shared_preferences (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - flutter_webview_plugin (from `.symlinks/plugins/flutter_webview_plugin/ios`)
+  - shared_preferences (from `.symlinks/plugins/shared_preferences/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  flutter_webview_plugin:
+    :path: ".symlinks/plugins/flutter_webview_plugin/ios"
+  shared_preferences:
+    :path: ".symlinks/plugins/shared_preferences/ios"
+
+SPEC CHECKSUMS:
+  Flutter: 0e3d915762c693b495b44d77113d4970485de6ec
+  flutter_webview_plugin: ed9e8a6a96baf0c867e90e1bce2673913eeac694
+  shared_preferences: af6bfa751691cdc24be3045c43ec037377ada40d
+
+PODFILE CHECKSUM: aafe91acc616949ddb318b77800a7f51bffa2a4c
+
+COCOAPODS: 1.10.0