Greasemonkey：从 eval 执行 GM_xmlhttpRequest() （后续）

发布于 2024-08-28 11:27:14 字数 1181 浏览 3 评论 0原文

如何在 eval 内部调用 GM_xmlhttpRequest，在其中 eval 处理一些复杂的代码，其中一些代码调用 GM_xmlhttpRequest >。

这是一些示例代码：

// ==UserScript==
// @name          Test GM AJAX
// ==/UserScript==

console = unsafeWindow.console;
function fetch(msg) {
  console.log('fetching: '+msg);
  GM_xmlhttpRequest({
      method: 'GET',
      url: 'http://google.com',
      onload: function(responseDetails) {
          console.log(msg);
      }   
  }); 
}

function complicated(arg1, arg2) {
  fetch(arg1 + arg2);
}
console.log('trying');
var code = 'complicated("Ya", "y!")';
function myEval(code) {
  eval(code);
  eval('setTimeout(function(){'+code+'},0)');
  eval('setTimeout(fetch,0)');
  eval('setTimeout(function(){console.log("here");fetch("cool")},0)');
  fetch("BOO");
}
myEval(code);

输出：

trying
fetching: Yay!
fetching: BOO
fetching: Yay!
fetching: 30
here
fetching: cool
BOO
30

所以唯一有效的获取是setTimeout(fetch,0) 但我需要实际执行包含复杂代码的code。

有什么想法吗？

原文

How can you call GM_xmlhttpRequest inside of an eval where you are evaling some complicated code, some of which calls GM_xmlhttpRequest.

This is a follow up to Perform GM_xmlhttpRequest() from eval

Here is some sample code:

// ==UserScript==
// @name          Test GM AJAX
// ==/UserScript==

console = unsafeWindow.console;
function fetch(msg) {
  console.log('fetching: '+msg);
  GM_xmlhttpRequest({
      method: 'GET',
      url: 'http://google.com',
      onload: function(responseDetails) {
          console.log(msg);
      }   
  }); 
}

function complicated(arg1, arg2) {
  fetch(arg1 + arg2);
}
console.log('trying');
var code = 'complicated("Ya", "y!")';
function myEval(code) {
  eval(code);
  eval('setTimeout(function(){'+code+'},0)');
  eval('setTimeout(fetch,0)');
  eval('setTimeout(function(){console.log("here");fetch("cool")},0)');
  fetch("BOO");
}
myEval(code);

which outputs:

trying
fetching: Yay!
fetching: BOO
fetching: Yay!
fetching: 30
here
fetching: cool
BOO
30

So the only fetch that worked was the setTimeout(fetch,0) but I need to actually execute the code which includes come complicated code.

Any ideas?

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-残月青衣踏尘吟 2024-09-04 11:27:14

因为我也有同样的问题，几个月后他们似乎没有答案。

如果您只想在一台机器上或像我一样在开发环境中运行此代码，您可以考虑更改 Greasmonkey Addon 源：
那里只有两个字母：“//”
在 Components/greasemonkey.js，第 47 行 ff

 if (stack.filename != null &&
      stack.filename != gmSvcFilename &&
      stack.filename.substr(0, 6) != "chrome") {
    GM_logError(new Error("Greasemonkey access violation: unsafeWindow " +
                "cannot call " + apiName + ". --> DISABED"));
    // return false;  OUT-COMMENT THIS LINE 
  }

但要小心，因为您可能会遇到 Mal 脚本的安全问题。

as I have the same problem, just months later and their seems no answer out there.

If you only want to run this code on one machine or in an developing environmetn as I do, you might consider changing the Greasmonkey Addon source:
There it is only two letters: "//"
in components / greasemonkey.js, line 47 ff

 if (stack.filename != null &&
      stack.filename != gmSvcFilename &&
      stack.filename.substr(0, 6) != "chrome") {
    GM_logError(new Error("Greasemonkey access violation: unsafeWindow " +
                "cannot call " + apiName + ". --> DISABED"));
    // return false;  OUT-COMMENT THIS LINE 
  }

But take care, as you mya get security problems with mal scripts.

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