kim.policy

来自「初期JAVA学习非常有用的资料。帮助深入了解API。特别是Applet。」· POLICY 代码 · 共 34 行

keystore "kim.keystore";

// Here is the permission TerrysGame needs.
// It grants code signed by "terry" the HighScorePermission, if the
// HighScorePermission was signed by "chris"
grant SignedBy "terry" {
  permission com.scoredev.scores.HighScorePermission
      "TerrysGame", signedBy "chris";
};

// Here is the set of permissions the HighScore class needs:
grant SignedBy "chris" {
  // The HighScore class needs permission to read "user.home" to find
  // the location of the highscore file

  permission java.util.PropertyPermission "user.home", "read";

  // It needs permission to read and write the high score file itself

  permission java.io.FilePermission
      "${user.home}${/}.highscore", "read,write";

  // It needs to get granted its own permission,
  // so it can call checkPermission
  // to see if its caller has permission.
  // Only grant it the permission
  // if the permission itself was signed by "chris"

  permission com.scoredev.scores.HighScorePermission 
      "*", signedBy "chris";
};