解决 macOS 10.12 下 PAC 模式下Safari 或 Twitter 客户端 tweetbot客户端不能FQ的问题

解决 macOS 10.12 下 PAC 模式下Safari 或 Twitter 客户端 tweetbot客户端不能FQ的问题
https://github.com/qiuyuzhou/ShadowsocksX-NG/issues/30
PS 手头没有 macOS 10.12 的机器，麻烦有的请帮忙测试一下
或者可以从 https://github.com/qinyuhang/ShadowsocksX-NG/tree/webserver 下载去
Xcode build 一下

ShadowsocksX-NG/AppDelegate.swift

@@ -144,6 +144,10 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDele
 
     func applicationWillTerminate(aNotification: NSNotification) {
         // Insert code here to tear down your application
+        StopSSLocal()
+        ProxyConfHelper.disableProxy("hi")
+        let defaults = NSUserDefaults.standardUserDefaults()
+        defaults.setBool(false, forKey: "ShadowsocksOn")
     }
     
     func applyConfig() {
@@ -154,15 +158,15 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDele
         if isOn {
             StartSSLocal()
             if mode == "auto" {
-                ProxyConfHelper.enablePACProxy()
+                ProxyConfHelper.enablePACProxy("hi")
             } else if mode == "global" {
                 ProxyConfHelper.enableGlobalProxy()
             } else if mode == "manual" {
-                ProxyConfHelper.disableProxy()
+                ProxyConfHelper.disableProxy("hi")
             }
         } else {
             StopSSLocal()
-            ProxyConfHelper.disableProxy()
+            ProxyConfHelper.disableProxy("hi")
         }
     }
     

ShadowsocksX-NG/ProxyConfHelper.h

@@ -7,15 +7,21 @@
 //
 
 #import <Foundation/Foundation.h>
+#import <GCDWebServer/GCDWebServer.h>
+#import <GCDWebServer/GCDWebServerDataResponse.h>
 
 @interface ProxyConfHelper : NSObject
 
 + (void)install;
 
-+ (void)enablePACProxy;
++ (void)enablePACProxy:(NSString*) PACFilePath;
 
 + (void)enableGlobalProxy;
 
-+ (void)disableProxy;
++ (void)disableProxy:(NSString*) PACFilePath;
+
++ (NSString*)startPACServer:(NSString*) PACFilePath;
+
++ (void)stopPACServer;
 
 @end

ShadowsocksX-NG/ProxyConfHelper.m

@@ -113,10 +113,14 @@
     }
 }
 
-+ (void)enablePACProxy {
-    NSString* urlString = [NSString stringWithFormat:@"%@/.ShadowsocksX-NG/gfwlist.js", NSHomeDirectory()];
-    NSURL* url = [NSURL fileURLWithPath:urlString];
-    
++ (void)enablePACProxy:(NSString*) PACFilePath {
+    //start server here and then using the string next line
+    //next two lines can open gcdwebserver and work around pac file
+    NSString *PACURLString = [self startPACServer: PACFilePath];//hi 可以切换成定制pac文件路径来达成使用定制文件路径
+    NSURL* url = [NSURL URLWithString: PACURLString];
+//    NSString* urlString = [NSString stringWithFormat:@"%@/.ShadowsocksX-NG/gfwlist.js", NSHomeDirectory()];
+//    NSURL* url = [NSURL fileURLWithPath:urlString];
+
     NSMutableArray* args = [@[@"--mode", @"auto", @"--pac-url", [url absoluteString]]mutableCopy];
     
     [self addArguments4ManualSpecifyNetworkServices:args];
@@ -135,10 +139,12 @@
     [self callHelper:args];
 }
 
-+ (void)disableProxy {
-    // 带上所有参数是为了判断是否原有代理设置是否由ssx-ng设置的。如果是用户手工设置的其他配置，则不进行清空。
-    NSString* urlString = [NSString stringWithFormat:@"%@/.ShadowsocksX-NG/gfwlist.js", NSHomeDirectory()];
-    NSURL* url = [NSURL fileURLWithPath:urlString];
++ (void)disableProxy:(NSString*) PACFilePath {
+//    带上所有参数是为了判断是否原有代理设置是否由ssx-ng设置的。如果是用户手工设置的其他配置，则不进行清空。
+//    NSString* urlString = [NSString stringWithFormat:@"%@/.ShadowsocksX-NG/gfwlist.js", NSHomeDirectory()];
+//    NSURL* url = [NSURL fileURLWithPath:urlString];
+    NSString *PACURLString = [self startPACServer: PACFilePath];//hi 可以切换成定制pac文件路径来达成使用定制文件路径
+    NSURL* url = [NSURL URLWithString: PACURLString];
     NSUInteger port = [[NSUserDefaults standardUserDefaults]integerForKey:@"LocalSocks5.ListenPort"];
     
     NSMutableArray* args = [@[@"--mode", @"off"
@@ -149,4 +155,27 @@
     [self callHelper:args];
 }
 
++ (NSString*)startPACServer:(NSString*) PACFilePath {
+    //接受参数为以后使用定制PAC文件
+    NSData * originalPACData;
+    if (![PACFilePath isEqual: @"hi"]) {//用默认路径来代替
+        PACFilePath = [NSString stringWithFormat:@"%@/%@", NSHomeDirectory(), @".ShadowsocksX-NG/gfwlist.js"];
+        originalPACData = [NSData dataWithContentsOfFile: [NSString stringWithFormat:@"%@/%@", NSHomeDirectory(), @".ShadowsocksX-NG/gfwlist.js"]];
+    }else{//用定制路径来代替
+        originalPACData = [NSData dataWithContentsOfFile: [NSString stringWithFormat:@"%@/%@/%@", NSHomeDirectory(), @".ShadowsocksX-NG", PACFilePath]];
+    }
+    GCDWebServer *webServer = [[GCDWebServer alloc] init];
+    [webServer addHandlerForMethod:@"GET" path:@"/proxy.pac" requestClass:[GCDWebServerRequest class] processBlock:^GCDWebServerResponse *(GCDWebServerRequest *request) {
+        return [GCDWebServerDataResponse responseWithData: originalPACData contentType:@"application/x-ns-proxy-autoconfig"];
+    }
+     ];
+    int port = 8090;
+    [webServer startWithPort:port bonjourName:@"webserver"];
+    return @"http://127.0.0.1:8090/proxy.pac";//为以后的定制PAC文件做准备
+}
+
++ (void)stopPACServer {
+    //原版似乎没有处理这个，本来设计计划如果切换到全局模式或者手动模式就关掉webserver 似乎没有这个必要了？
+}
+
 @end

ShadowsocksX-NG/ProxyPreferencesController.swift

@@ -37,7 +37,7 @@ class ProxyPreferencesController: NSWindowController, NSTableViewDataSource, NST
     }
     
     @IBAction func ok(sender: NSObject){
-        ProxyConfHelper.disableProxy()
+        ProxyConfHelper.disableProxy("hi")
         
         let defaults = NSUserDefaults.standardUserDefaults()
         defaults.setValue(selectedNetworkServices.allObjects, forKeyPath: "Proxy4NetworkServices")

ShadowsocksX-NG/SWBApplication.m

@@ -28,7 +28,7 @@
                     return;
             }
             else if ([[event charactersIgnoringModifiers] isEqualToString:@"z"]) {
-                if ([self sendAction:@selector(undo:) to:nil from:self])
+                if ([self sendAction:@selector(undo) to:nil from:self])
                     return;
             }
             else if ([[event charactersIgnoringModifiers] isEqualToString:@"a"]) {
@@ -38,7 +38,7 @@
         }
         else if (([event modifierFlags] & NSDeviceIndependentModifierFlagsMask) == (NSCommandKeyMask | NSShiftKeyMask)) {
             if ([[event charactersIgnoringModifiers] isEqualToString:@"Z"]) {
-                if ([self sendAction:@selector(redo:) to:nil from:self])
+                if ([self sendAction:@selector(redo) to:nil from:self])
                     return;
             }
         }