Class ExecScript

src/app/service/content/exec_script.ts:13–113

// 执行脚本,控制脚本执行与停止
export default class ExecScript {
  scriptRes: TScriptInfo;

  scriptFunc: ScriptFunc;

  logger: Logger;

  // proxyContext: typeof globalThis;

  sandboxContext?: IGM_Base & { [key: string]: any };

  named?: { [key: string]: any };

  constructor(
    scriptRes: TScriptInfo,
    options: {
      envPrefix: string;
      message: Message;
      contentMsg: Message;
      code: string | ScriptFunc;
      envInfo: GMInfoEnv;
      globalInjection?: { [key: string]: any }; // 主要是全域API. @grant none 时无效
    }
  ) {
    const { envPrefix, message, contentMsg, code, envInfo, globalInjection } = options;
    this.scriptRes = scriptRes;
    this.logger = LoggerCore.getInstance().logger({
      component: "exec",
      uuid: scriptRes.uuid,
      name: scriptRes.name,
    });
    const GM_info = evaluateGMInfo(envInfo, scriptRes);
    // 构建脚本资源
    if (typeof code === "string") {
      this.scriptFunc = compileScript(code);
    } else {
      this.scriptFunc = code;
    }
    const grantSet = new Set(scriptRes.metadata.grant || []);
    if (isContextMenuScript(scriptRes.metadata)) {
      grantSet.add("GM_registerMenuCommand");
      grantSet.delete("none");
    }
    if (grantSet.has("none")) {
      // 不注入任何GM api
      // ScriptCat行为：GM.info 和 GM_info 同时注入
      // 在不改变 Context 的情况下，以 named 传入多个全域变量
      const GM = Object.create(null);
      GM.info = GM_info;
      this.named = { GM, GM_info };
    } else {
      // 构建脚本GM上下文
      this.sandboxContext = createContext(scriptRes, GM_info, envPrefix, message, contentMsg, grantSet);
      if (globalInjection) {
        Object.assign(this.sandboxContext, globalInjection);
      }
    }
  }