使用Jint编辑.js

Question

我正在尝试用jint编辑下面的javascript。我真的只想在运行时在defaultConfig中编辑var antiCapthaPredefinedApiKey = '';和设置代理设置。我有一个winforms，我将把这两个值传递给我调用的方法来编辑它。这是js，

// Public config

var antiCapthaPredefinedApiKey = '';

var defaultConfig = {
    // settings
    enable: true,
    account_key: antiCapthaPredefinedApiKey,
    auto_submit_form: true,
    play_sounds: false,
    delay_onready_callback: false,

    where_solve_list: [], // i.e. ['example.com', 'www.ladysproblems.com']
    where_solve_white_list_type: false, // true -- considered as white list, false -- black list

    solve_recaptcha2: true,
    solve_recaptcha3: true,
    recaptcha3_score: 0.3,
    solve_invisible_recaptcha: true,
    solve_funcaptcha: true,
    solve_geetest: true,
    solve_hcaptcha: true,
    use_predefined_image_captcha_marks: true,

    solve_proxy_on_tasks: false,
    user_proxy_protocol: 'HTTP',
    user_proxy_server: '',
    user_proxy_port: '',
    user_proxy_login: '',
    user_proxy_password: '',

    use_recaptcha_precaching: false,
    k_precached_solution_count_min: 2,
    k_precached_solution_count_max: 4,

    dont_reuse_recaptcha_solution: true,
    start_recaptcha2_solving_when_challenge_shown: false,
    solve_only_presented_recaptcha2: false,

    // use_recaptcha_accelerator: false,

    // status
    account_key_checked: antiCapthaPredefinedApiKey ? true : false, // set after account_key check
    free_attempts_left_count: 15 // move to config
};

这是我当前执行的代码，但它并没有改变我所知道的变量。我也没有先添加编辑代理设置，因为我想看看是否可以更改api密钥变量。一旦完成，我只想保存文件。这是我第一次使用jint，所以我对它缺乏经验。

        public static void ReadJsFile(string api, string proxy)
        {
            string workingDirectory1 = Environment.CurrentDirectory;
            string filePath = workingDirectory1 + "\\anticaptcha\\js\\config_ac_api_key.js";

            var engine = new Engine();

            var antiCap = File.ReadAllText(filePath);
            engine.Execute(antiCap);

            engine.SetValue("antiCapthaPredefinedApiKey", api);      
        }

Answer 1

在执行engine.Execute(antiCap)行之后，已经对defaultConfig求值，并在求值时用antiCapthaPredefinedApiKey的值填充，该值是一个空字符串。之后更改antiCapthaPredefinedApiKey的值不会影响defaultConfig。

要获得您想要的内容，请不要在JS文件中定义antiCapthaPredefinedApiKey，并在执行脚本之前使用Jint设置其值：

public static void ReadJsFile(string api, string proxy)
{
    string workingDirectory1 = Environment.CurrentDirectory;
    string filePath = workingDirectory1 + "\\anticaptcha\\js\\config_ac_api_key.js";
    var engine = new Engine();
    var antiCap= File.ReadAllText(filePath);
    engine.SetValue("antiCapthaPredefinedApiKey", api);
    engine.Execute(antiCap);
}