Using the Policy Tool saves typing and eliminates the need for you to know the required policy file syntax thus reducing errors. The Policy Tool Usage section describes how to use the Policy Tool to create and modify policy files.
The Examples section provides detailed examples of the use of Policy Tool. Whenever Policy Tool is started, it tries to fill in this window with policy information from what is sometimes referred to as the "user policy file".
The user policy file is by default a file named. If Policy Tool cannot find the user policy file, it reports the situation and displays a blank "Policy Tool" window that is, a window with headings and buttons but no data in it :. You can then proceed to either open whatever policy file you want to work on or create a new policy file, by adding policy entries , optionally specifying a keystore , and saving the file.
The first time you run the Policy Tool , there will not be a user policy file unless you created one manually. To create a new policy file, start by simply selecting the New command from the File menu. This will close the currently open policy file if any, after first prompting you to save it if needed and bring up a new policy tool window, that is, a window with headings and buttons but no data in it. Please Note: this is not necessary the first time you run the Policy Tool. Since the tool tries to open the user policy file and one doesn't exist yet unless it was created manually , the tool will bring up a window without any data in it.
Once you have a new policy tool window, you can then create the policy entries , and specify the keystore if any of the policy entries specify a keystore alias. At any point, you can save the policy file. To work on a different policy file than the one currently being worked on if any , use the Open command in the File menu.
This will close the currently open policy file if any, after first prompting you to save it if needed and will present you with an Open dialog, which you can use to navigate the directory structure until you get to the directory containing the policy file you want to work on.
Select that file, then select the OK button. The "Policy Tool" window will then be filled in with information from the policy file, including the policy file name, the keystore URL if any , and the CodeBase, SignedBy and Principal parts of each policy entry in the policy file.
To specify the keystore containing the key information for the aliases specified in the SignedBy parts of policy entries, select the Edit command in the Keystore menu. This brings up a dialog box in which you specify the new keystore URL and optionally the keystore type. To also specify that the keystore type is "JKS" the proprietary keystore type supported by Sun Microsystems , type the following into the text box labeled "New KeyStore Type".
When you are done specifying the keystore URL and type if any , select OK or you can select Cancel to cancel the operation. If you didn't cancel, the text box labeled "Keystore:" is now filled in with the keystore URL and type. The SignedBy value is a string alias that is mapped using the keystore to a set of public keys that are associated with the signers. These keys are used to verify that classes from the specified code source are really signed by these signers.
The SignedBy value can be a comma-separated string containing names of multiple signers, an example of which is "Adam,Eve,Charles", which means "signed by Adam and Eve and Charles" i. The SignedBy value is optional in that, if it is omitted, it signifies "any signer," or in other words, it doesn't matter whether the code is signed or not. Similarly, if there is no CodeBase entry, then it signifies "any code"; it doesn't matter where the code originates from. Thus, if there is no CodeBase entry, then all code signed by the specified alias es will be granted the specified permissions.
If there is no SignedBy entry, then all code from the specified CodeBase will be granted the specified permissions, regardless of whether the code is signed or not, and by whom. If there is no CodeBase entry, and also no SignedBy entry, then all code will be granted the specified permissions. Note: The exact meaning of a CodeBase value depends on the characters at the end.
The Principals entry specifies a list of "principal values". The Principals entry is optional in that, if it is omitted, it signifies "any principals". The keystore is consulted and queried via the alias for an X Certificate. If one is found, the principal type is automatically assumed to be javax. XPrincipal, and the actual principal name is assumed to be the subject distinguished name from the certificate. If an X Certificate mapping is not found, the entire policy entry granting permissions to the specified principal is ignored.
To add a new principal, select the Add Principal button in the "Policy Entry" dialog box. This brings up the "Principals" dialog box:. The drop-down list labeled "Principal Type:" contains a list of built-in principal types. If you want such a type, select it from the list, and the complete principal type name appears in the text box to the right of the drop-down list.
If you instead want to specify a principal type defined by you or others, type the principal type into the text box. Type the principal name directly into the text box to the right of the "Principal Name:" text box. For example, to specify the principal named duke , type. When you are done specifying the principal information, select the OK button or Cancel to cancel.
The new principal appears in a line in the "Principals" entry. You can then add additional principals by following the same sequence of steps. Or you can edit or remove an existing principal. To edit an existing principal, select the line for that principal in the "Principals:" entry, then select the Edit Principal button. Alternatively, you can simply double-click the line for that principal. This brings up the same type of "Principals" dialog box as appears when you are adding a new principal, except in this case the dialog box is filled in with the existing principal information.
To change the information, either make new selections from the drop-down lists or replace the information in the text boxes. When you are done, select the OK button or Cancel to cancel changes.
The Principals:" entry now shows the principal with your modifications. To remove an existing principal, select the line for that principal in the "Principals:" entry, then select the Remove Principal button. To add a new permission, select the Add Permission button in the "Policy Entry" dialog box. This brings up the "Permissions" dialog box:. The drop-down list labeled "Permission:" contains a list of built-in permission types.
If you want such a type, select it from the list, and the complete permission type name appears in the text box to the right of the drop-down list. If you instead want to specify a permission type defined by you or others, type the permission type into the text box. If you selected a built-in permission from the "Permission:" drop-down list, and permissions of that type have specific target name values, then the drop-down list labeled "Target Name:" contains a list of those values, from which you can choose.
In some cases, where the target name possibilities are infinite but there are some built-in target name specifications that have special meaning, such target names will appear in the drop-down list. To specify a target name not available in the drop-down list, type the target name directly into the text box to the right of the "Target Name:" drop-down list. Some permissions just have a target name, but no actions.
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