Mac App内修改系统网络代理配置不生效的问题

Question

我在github下载了一个工程：https://github.com/ohdarling/ProxyMenu 运行后可以修改系统的网络代理配置。

然后新建一个工程，将修改的代码拷贝到新工程里，运行却不生效。

以下是代码片段：

void changeProxy() {


    static AuthorizationRef authRef;
    static AuthorizationFlags authFlags;
    authFlags = kAuthorizationFlagDefaults
    | kAuthorizationFlagExtendRights
    | kAuthorizationFlagInteractionAllowed
    | kAuthorizationFlagPreAuthorize;
    OSStatus authErr = AuthorizationCreate(nil, kAuthorizationEmptyEnvironment, authFlags, &authRef);
    if (authErr != noErr) {
        authRef = nil;
    } else {
        if (authRef == NULL) {
            printf("No authorization has been granted to modify network configuration\n");
            return;
        }

        SCPreferencesRef prefRef = SCPreferencesCreateWithAuthorization(nil, CFSTR("system-proxy-setup"), nil, authRef);

        NSMutableDictionary *sets = [(__bridge NSDictionary *)SCPreferencesPathGetValue(prefRef, (__bridge CFStringRef)[NSString stringWithFormat:@"/%@", kSCPrefNetworkServices]) mutableCopy];
        [sets enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, __kindof NSDictionary  *_Nonnull obj, BOOL * _Nonnull stop) {
            //                NSString *hardware = [obj valueForKeyPath:@"Interface.Hardware"];
            //                BOOL modify = ([hardware isEqualToString:@"AirPort"]
            //                               || [hardware isEqualToString:@"Wi-Fi"]
            //                               || [hardware isEqualToString:@"Ethernet"]);
            if (YES/*modify*/) {
                NSMutableDictionary *proxies = [obj[@"Proxies"] mutableCopy];
                NSArray<NSString *> *keys = @[(NSString *)kCFNetworkProxiesHTTPProxy,
                                              (NSString *)kCFNetworkProxiesHTTPSProxy,
                                              (NSString *)kCFNetworkProxiesSOCKSProxy,
                                              (NSString *)kCFNetworkProxiesHTTPPort,
                                              (NSString *)kCFNetworkProxiesHTTPSPort,
                                              (NSString *)kCFNetworkProxiesSOCKSPort,
                                              (NSString *)kCFNetworkProxiesProxyAutoConfigURLString];
                [proxies removeObjectsForKeys:keys];

                [proxies setObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCFNetworkProxiesHTTPEnable];
                [proxies setObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCFNetworkProxiesHTTPSEnable];
                [proxies setObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCFNetworkProxiesSOCKSEnable];
                [proxies setObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCFNetworkProxiesProxyAutoConfigEnable];


                //                        [proxies removeObjectForKey:(NSString *)kCFNetworkProxiesProxyAutoConfigURLString];
                //                        [proxies setObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCFNetworkProxiesHTTPEnable];

                [proxies setObject:@"127.0.0.1" forKey:(NSString *)kCFNetworkProxiesSOCKSProxy];
                [proxies setObject:[NSNumber numberWithInt:8877] forKey:(NSString *)kCFNetworkProxiesSOCKSPort];
                [proxies setObject:[NSNumber numberWithInt:YES] forKey:(NSString *)kCFNetworkProxiesSOCKSEnable];


                [proxies setObject:@"127.0.0.1" forKey:(NSString *)kCFNetworkProxiesHTTPProxy];
                [proxies setObject:@"127.0.0.1" forKey:(NSString *)kCFNetworkProxiesHTTPSProxy];
                [proxies setObject:[NSNumber numberWithInt:9999] forKey:(NSString *)kCFNetworkProxiesHTTPPort];
                [proxies setObject:[NSNumber numberWithInt:9999] forKey:(NSString *)kCFNetworkProxiesHTTPSPort];
                [proxies setObject:[NSNumber numberWithBool:YES] forKey:(NSString *)kCFNetworkProxiesHTTPEnable];
                [proxies setObject:[NSNumber numberWithBool:YES] forKey:(NSString *)kCFNetworkProxiesHTTPSEnable];

                if (SCPreferencesPathSetValue(prefRef, (__bridge CFStringRef)[NSString stringWithFormat:@"/%@/%@/%@", kSCPrefNetworkServices, key, kSCEntNetProxies], (__bridge CFDictionaryRef)proxies)) {
                    printf("update %s proxies successful ...\n", [key UTF8String]);
                };
            }
        }];
        if (SCPreferencesCommitChanges(prefRef)) {
            printf("commit successful ...\n");
        }
        if (SCPreferencesApplyChanges(prefRef)) {
            printf("apply changes successful ...\n");
        }
        SCPreferencesSynchronize(prefRef);
        printf("synchronize successful ...\n");
        AuthorizationFree(authRef, kAuthorizationFlagDefaults);
        authRef = NULL;
    }
}

问题出在SCPreferencesCommitChanges和SCPreferencesApplyChanges上，这两个函数都返回false。

但是在原项目中，是修改成功的。

问题出在哪里？我应该怎么设置？

Answer 1

题主，解决了吗？