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AngularJS: API: ng/provider/$sceDelegateProvider

$sceDelegateProvider

  1. - $sceDelegate
  2. - provider in module ng

$sceDelegateProvider提供者允许开发者配置$sceDelegate服务。它允许一个get/set 白名单和黑名单用于确保使用的获取Angular模板的URL是安全的。参见$sceDelegateProvider.resourceUrlWhitelist 和 $sceDelegateProvider.resourceUrlBlacklist

对于这个服务在Angular中的一些细节,请阅读Strict Contextual Escaping (SCE)。

示例: 考虑以下情况

  • 你的应用的url主机地址为http://myapp.example.com/
  • 但是你的一些模板存在其它域上,如http://srv01.assets.example.com/, http://srv02.assets.example.com/等。
  • 并且你有一个开放的重定向http://myapp.example.com/clickThru?...

这种情况下的安全配置可能看起来像:

 angular.module('myApp', []).config(Function($sceDelegateProvider) {
   $sceDelegateProvider.resourceUrlWhitelist([
     // 允许相同来源资源载入。
     'self',
     // 允许从我们的assets域加载。注意 * 和 **之间的不同。
     'http://srv*.assets.example.com/**'
   ]);

   // 黑名单覆盖白名单,这样开放重定向在这会被阻止。
   $sceDelegateProvider.resourceUrlBlacklist([
     'http://myapp.example.com/clickThru**'
   ]);
 });

方法

  • resourceUrlWhitelist([whitelist]);

    Sets/Gets 信任资源URL们的白名单。

    参数

    参数 类型 详述
    whitelist
    (可选)
    Array

    当提供时,使用给出的值替换resourceUrlWhitelist。它必须是一个数组或null。这里会使用该数组的快照,所以数组未来的变化被忽略。

    注意: 一个空的白名单数组会阻止所有URL!

    返回值

    Array

    当前设置的白名单数组。

    没有白名单时的默认值被简单设为['self'],只允许相同来源的资源请求。

  • resourceUrlBlacklist([blacklist]);

    Sets/Gets 信任资源URL们的黑名单。

    参数

    参数 类型 详述
    blacklist
    (可选)
    Array

    当提供时,使用给出的值替换resourceUrlBlacklist。它必须是一个数组或null。这里会使用该数组的快照,所以数组未来的变化被忽略。

    黑名单典型的用法是用**阻止开放重定向(http://cwe.mitre.org/data/definitions/601.html)。
    使用**处理您域中这些原本被信任的但实际上返回重定向域的内容。
    最后,正如我们之前所说的黑名单会覆盖白名单。

    返回值

    Array

    当前设置的黑名单数组。

    没有白名单时的默认值被简单设为空数组(表示这里没有黑名单)。


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