266 lines
10 KiB
Objective-C
266 lines
10 KiB
Objective-C
//
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// ProxyConfHelper.m
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// ShadowsocksX-NG
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//
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// Created by 邱宇舟 on 16/6/10.
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// Copyright © 2016年 qiuyuzhou. All rights reserved.
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//
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#import "ProxyConfHelper.h"
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#import "proxy_conf_helper_version.h"
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#define kShadowsocksHelper @"/Library/Application Support/ShadowsocksX-NG/proxy_conf_helper"
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@implementation ProxyConfHelper
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GCDWebServer *webServer =nil;
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+ (BOOL)isVersionOk {
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NSTask *task;
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task = [[NSTask alloc] init];
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[task setLaunchPath:kShadowsocksHelper];
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NSArray *args;
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args = [NSArray arrayWithObjects:@"-v", nil];
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[task setArguments: args];
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NSPipe *pipe;
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pipe = [NSPipe pipe];
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[task setStandardOutput:pipe];
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NSFileHandle *fd;
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fd = [pipe fileHandleForReading];
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[task launch];
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NSData *data;
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data = [fd readDataToEndOfFile];
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NSString *str;
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str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
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if (![str isEqualToString:kProxyConfHelperVersion]) {
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return NO;
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}
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return YES;
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}
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+ (void)install {
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NSFileManager *fileManager = [NSFileManager defaultManager];
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if (![fileManager fileExistsAtPath:kShadowsocksHelper] || ![self isVersionOk]) {
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NSString *helperPath = [NSString stringWithFormat:@"%@/%@", [[NSBundle mainBundle] resourcePath], @"install_helper.sh"];
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NSLog(@"run install script: %@", helperPath);
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NSDictionary *error;
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NSString *script = [NSString stringWithFormat:@"do shell script \"/bin/bash \\\"%@\\\"\" with administrator privileges", helperPath];
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NSAppleScript *appleScript = [[NSAppleScript new] initWithSource:script];
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if ([appleScript executeAndReturnError:&error]) {
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NSLog(@"installation success");
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} else {
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NSLog(@"installation failure: %@", error);
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}
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}
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}
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+ (void)callHelper:(NSArray*) arguments {
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NSTask *task;
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task = [[NSTask alloc] init];
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[task setLaunchPath:kShadowsocksHelper];
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// this log is very important
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NSLog(@"run shadowsocks helper: %@", kShadowsocksHelper);
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[task setArguments:arguments];
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NSPipe *stdoutpipe;
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stdoutpipe = [NSPipe pipe];
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[task setStandardOutput:stdoutpipe];
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NSPipe *stderrpipe;
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stderrpipe = [NSPipe pipe];
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[task setStandardError:stderrpipe];
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NSFileHandle *file;
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file = [stdoutpipe fileHandleForReading];
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[task launch];
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NSData *data;
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data = [file readDataToEndOfFile];
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NSString *string;
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string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
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if (string.length > 0) {
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NSLog(@"%@", string);
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}
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file = [stderrpipe fileHandleForReading];
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data = [file readDataToEndOfFile];
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string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
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if (string.length > 0) {
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NSLog(@"%@", string);
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}
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}
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+ (void)addArguments4ManualSpecifyNetworkServices:(NSMutableArray*) args {
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NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
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if (![defaults boolForKey:@"AutoConfigureNetworkServices"]) {
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NSArray* serviceKeys = [defaults arrayForKey:@"Proxy4NetworkServices"];
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if (serviceKeys) {
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for (NSString* key in serviceKeys) {
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[args addObject:@"--network-service"];
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[args addObject:key];
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}
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}
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}
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}
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+ (void)addArguments4ManualSpecifyProxyExceptions:(NSMutableArray*) args {
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NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
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NSString* rawExceptions = [defaults stringForKey:@"ProxyExceptions"];
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if (rawExceptions) {
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NSCharacterSet* whites = [NSCharacterSet whitespaceAndNewlineCharacterSet];
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NSMutableCharacterSet* seps = [NSMutableCharacterSet characterSetWithCharactersInString:@",、"];
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[seps formUnionWithCharacterSet:whites];
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NSArray* exceptions = [rawExceptions componentsSeparatedByCharactersInSet:seps];
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for (NSString* domainOrHost in exceptions) {
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if ([domainOrHost length] > 0) {
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[args addObject:@"-x"];
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[args addObject:domainOrHost];
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}
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}
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}
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}
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+ (NSString*)getPACFilePath {
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return [NSString stringWithFormat:@"%@/%@", NSHomeDirectory(), @".ShadowsocksX-NG/gfwlist.js"];
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}
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+ (void)enablePACProxy {
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//start server here and then using the string next line
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//next two lines can open gcdwebserver and work around pac file
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NSString* PACFilePath = [self getPACFilePath];
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[self startPACServer: PACFilePath];
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NSURL* url = [NSURL URLWithString: [self getHttpPACUrl]];
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NSMutableArray* args = [@[@"--mode", @"auto", @"--pac-url", [url absoluteString]]mutableCopy];
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[self addArguments4ManualSpecifyNetworkServices:args];
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[self addArguments4ManualSpecifyProxyExceptions:args];
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[self callHelper:args];
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}
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+ (void)enableGlobalProxy {
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NSUInteger port = [[NSUserDefaults standardUserDefaults]integerForKey:@"LocalSocks5.ListenPort"];
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NSMutableArray* args = [@[@"--mode", @"global", @"--port"
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, [NSString stringWithFormat:@"%lu", (unsigned long)port]]mutableCopy];
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// Because issue #106 https://github.com/shadowsocks/ShadowsocksX-NG/issues/106
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// Comment below out.
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// if ([[NSUserDefaults standardUserDefaults] boolForKey:@"LocalHTTPOn"] && [[NSUserDefaults standardUserDefaults] boolForKey:@"LocalHTTP.FollowGlobal"]) {
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// NSUInteger privoxyPort = [[NSUserDefaults standardUserDefaults]integerForKey:@"LocalHTTP.ListenPort"];
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//
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// [args addObject:@"--privoxy-port"];
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// [args addObject:[NSString stringWithFormat:@"%lu", (unsigned long)privoxyPort]];
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// }
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[self addArguments4ManualSpecifyNetworkServices:args];
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[self addArguments4ManualSpecifyProxyExceptions:args];
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[self callHelper:args];
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[self stopPACServer];
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}
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+ (void)disableProxy {
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// 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。
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NSURL* url = [NSURL URLWithString: [self getHttpPACUrl]];
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NSUInteger port = [[NSUserDefaults standardUserDefaults]integerForKey:@"LocalSocks5.ListenPort"];
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NSMutableArray* args = [@[@"--mode", @"off"
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, @"--port", [NSString stringWithFormat:@"%lu", (unsigned long)port]
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, @"--pac-url", [url absoluteString]
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]mutableCopy];
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[self addArguments4ManualSpecifyNetworkServices:args];
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[self addArguments4ManualSpecifyProxyExceptions:args];
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[self callHelper:args];
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[self stopPACServer];
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}
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+ (NSString*)getHttpPACUrl {
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NSString * routerPath = @"/proxy.pac";
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NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
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NSString * address = @"127.0.0.1";
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int port = (short)[defaults integerForKey:@"PacServer.ListenPort"];
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return [NSString stringWithFormat:@"%@%@:%d%@",@"http://",address,port,routerPath];
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}
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+ (void)startPACServer:(NSString*) PACFilePath {
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[self stopPACServer];
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NSString * routerPath = @"/proxy.pac";
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NSData* originalPACData = [NSData dataWithContentsOfFile:PACFilePath];
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webServer = [[GCDWebServer alloc] init];
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[webServer addHandlerForMethod:@"GET"
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path:routerPath
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requestClass:[GCDWebServerRequest class]
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processBlock:^GCDWebServerResponse *(GCDWebServerRequest *request)
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{
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GCDWebServerDataResponse* resp = [GCDWebServerDataResponse responseWithData:originalPACData
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contentType:@"application/x-ns-proxy-autoconfig"];
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return resp;
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}
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];
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NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
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int port = (short)[defaults integerForKey:@"PacServer.ListenPort"];
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[webServer startWithOptions:@{@"BindToLocalhost":@YES, @"Port":@(port)} error:nil];
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}
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+ (void)stopPACServer {
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//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？
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if ([webServer isRunning]) {
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[webServer stop];
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}
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}
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+ (void)startMonitorPAC {
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NSString* PACFilePath = [self getPACFilePath];
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dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
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int fileId = open([PACFilePath UTF8String], O_EVTONLY);
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__block dispatch_source_t source = dispatch_source_create(DISPATCH_SOURCE_TYPE_VNODE, fileId,
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DISPATCH_VNODE_DELETE | DISPATCH_VNODE_WRITE | DISPATCH_VNODE_EXTEND | DISPATCH_VNODE_ATTRIB | DISPATCH_VNODE_LINK | DISPATCH_VNODE_RENAME | DISPATCH_VNODE_REVOKE,
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queue);
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dispatch_source_set_event_handler(source, ^
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{
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unsigned long flags = dispatch_source_get_data(source);
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if(flags & DISPATCH_VNODE_DELETE)
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{
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dispatch_source_cancel(source);
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} else {
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NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
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if ([defaults boolForKey:@"ShadowsocksOn"]) {
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if ([[defaults stringForKey:@"ShadowsocksRunningMode"] isEqualToString:@"auto"]) {
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[ProxyConfHelper disableProxy];
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[ProxyConfHelper enablePACProxy];
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}
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}
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}
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});
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dispatch_source_set_cancel_handler(source, ^(void)
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{
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close(fileId);
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});
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dispatch_resume(source);
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}
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@end
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