Question

我正在尝试在iOS应用和相关网站之间共享凭据，实现一些相当基本/标准的Xamarin.iOS代码。

public void TryGetSharedCredential(Action<Tuple<string, string>> callback)
        {
            try
            {
                Security.SecSharedCredential.RequestSharedWebCredential("www.jg.com", "me@jg.com", (accounts, err) =>
                {
                    if (accounts != null && accounts.Any())
                    {
                        var email = accounts[0];
                        var password = accounts[1];

                        callback(new Tuple<string, string>(email, password));    
                    }
                });
            }
            catch (Exception ex)
            {
        //log exception
            }

            callback(null);
        }

但是，RequestSharedWebCredential与以下日志崩溃（并且从不进入NSAction）。

2017-10-02 16:33:30.083 JGMobileIOS[65076:4639965] -[__NSCFDictionary UTF8String]: unrecognized selector sent to instance 0x608000282f40
2017-10-02 16:33:30.091 JGMobileIOS[65076:4639965] Xamarin.iOS: Received unhandled ObjectiveC exception: NSInvalidArgumentException -[__NSCFDictionary UTF8String]: unrecognized selector sent to instance 0x608000282f40
2017-10-02 16:33:34.363 JGMobileIOS[65076:4640005] critical: Stacktrace:

2017-10-02 16:33:34.364 JGMobileIOS[65076:4640005] critical: 
Native stacktrace:

2017-10-02 16:33:34.365 JGMobileIOS[65076:4640005] critical:    0   JGMobileIOS                         0x0000000104938004 mono_handle_native_crash + 244
2017-10-02 16:33:34.366 JGMobileIOS[65076:4640005] critical:    1   JGMobileIOS                         0x0000000104945970 mono_sigsegv_signal_handler + 288
2017-10-02 16:33:34.366 JGMobileIOS[65076:4640005] critical:    2   libsystem_platform.dylib            0x000000011151db3a _sigtramp + 26
2017-10-02 16:33:34.366 JGMobileIOS[65076:4640005] critical:    3   ???                                 0x0000000000000000 0x0 + 0
2017-10-02 16:33:34.366 JGMobileIOS[65076:4640005] critical:    4   JGMobileIOS                         0x00000001049988bc mono_debug_symfile_lookup_method + 44
2017-10-02 16:33:34.366 JGMobileIOS[65076:4640005] critical:    5   JGMobileIOS                         0x00000001049fc87d lookup_method_func + 61
2017-10-02 16:33:34.367 JGMobileIOS[65076:4640005] critical:    6   JGMobileIOS                         0x0000000104ad75bd monoeg_g_hash_table_foreach + 77
2017-10-02 16:33:34.367 JGMobileIOS[65076:4640005] critical:    7   JGMobileIOS                         0x00000001049fc2f9 mono_debug_lookup_method_async_debug_info + 105
2017-10-02 16:33:34.367 JGMobileIOS[65076:4640005] critical:    8   JGMobileIOS                         0x000000010489bfbb ss_start + 331
2017-10-02 16:33:34.367 JGMobileIOS[65076:4640005] critical:    9   JGMobileIOS                         0x0000000104897b16 debugger_thread + 27910
2017-10-02 16:33:34.367 JGMobileIOS[65076:4640005] critical:    10  JGMobileIOS                         0x0000000104a4b283 start_wrapper + 675
2017-10-02 16:33:34.367 JGMobileIOS[65076:4640005] critical:    11  libsystem_pthread.dylib             0x000000011152f93b _pthread_body + 180
2017-10-02 16:33:34.368 JGMobileIOS[65076:4640005] critical:    12  libsystem_pthread.dylib             0x000000011152f887 _pthread_body + 0
2017-10-02 16:33:34.368 JGMobileIOS[65076:4640005] critical:    13  libsystem_pthread.dylib             0x000000011152f08d thread_start + 13
2017-10-02 16:33:34.368 JGMobileIOS[65076:4640005] critical: 
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

我试过了：

在模拟器和设备上
没有任何链接（“不要链接”）
还尝试了未指定域和帐户的重载。根据文档，如果您传递空域，则指定的域检查Entitlements.plist。如果您指定一个空帐户，然后应该返回该域的所有存储帐户。同样的崩溃。

我已检查了entitlements.plist：

<?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.associated-domains</key> <array> <string>applinks:www.jg.com</string> <string>webcredentials:www.jg.com</string> </array> </dict> </plist>

我有正确的json：www.jg.com/.well-known/apple-app-site-association（在https上）

{
  "applinks": {
    //applink stuff
  },
  "webcredentials": {
    "apps": [
    //full teamid + appid
    ]
  }
}

我相信下面的Xamarin下面出现了问题 - ＆gt; iOS api方法映射：

public static void AddSharedWebCredential (string domainName, string account, string password, Action<NSError> handler);

    public static string CreateSharedWebCredentialPassword ();

    public static void RequestSharedWebCredential (string domainName, string account, Action<string[], NSError> handler);

    [Introduced (PlatformName.iOS, 8, 0, PlatformArchitecture.None, null)]
    [DllImport ("/System/Library/Frameworks/Security.framework/Security")]
    private static extern void SecAddSharedWebCredential (IntPtr fqdn, IntPtr account, IntPtr password, IntPtr completionHandler);

    [Introduced (PlatformName.iOS, 8, 0, PlatformArchitecture.None, null)]
    [DllImport ("/System/Library/Frameworks/Security.framework/Security")]
    private static extern IntPtr SecCreateSharedWebCredentialPassword ();

    [Introduced (PlatformName.iOS, 8, 0, PlatformArchitecture.None, null)]
    [DllImport ("/System/Library/Frameworks/Security.framework/Security")]
    private static extern void SecRequestSharedWebCredential (IntPtr fqdn, IntPtr account, IntPtr completionHandler);

如何获得有关出错的更多细节？我错过了什么和/或我还能尝试什么？

Answer 1

在与Xamarin支持工程师合作之后，结果证明这是Xamarin.iOS中的一个错误，并将在以后的版本中修复：

https://bugzilla.xamarin.com/show_bug.cgi?id=60423

在此处修复：https://github.com/xamarin/xamarin-macios/commit/03b9d1759e0bafe5d94d319e5a58f798a3ce575b

Xamarin.iOS：Security.SecSharedCredential.RequestSharedWebCredential与“无法识别的选择器”崩溃

1 个答案: