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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
var EXPORTED_SYMBOLS = ["PermissionsUtils"];
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
var gImportedPrefBranches = new Set();
function importPrefBranch(aPrefBranch, aPermission, aAction) {
let list = Services.prefs.getChildList(aPrefBranch);
for (let pref of list) {
let origins = Services.prefs.getCharPref(pref, "");
if (!origins) {
continue;
}
origins = origins.split(",");
for (let origin of origins) {
let principals = [];
try {
principals = [
Services.scriptSecurityManager.createContentPrincipalFromOrigin(
origin
),
];
} catch (e) {
// This preference used to contain a list of hosts. For back-compat
// reasons, we convert these hosts into http:// and https:// permissions
// on default ports.
try {
let httpURI = Services.io.newURI("http://" + origin);
let httpsURI = Services.io.newURI("https://" + origin);
principals = [
Services.scriptSecurityManager.createContentPrincipal(httpURI, {}),
Services.scriptSecurityManager.createContentPrincipal(httpsURI, {}),
];
} catch (e2) {}
}
for (let principal of principals) {
try {
Services.perms.addFromPrincipal(principal, aPermission, aAction);
} catch (e) {}
}
}
Services.prefs.setCharPref(pref, "");
}
}
var PermissionsUtils = {
/**
* Import permissions from perferences to the Permissions Manager. After being
* imported, all processed permissions will be set to an empty string.
* Perferences are only processed once during the application's
* lifetime - it's safe to call this multiple times without worrying about
* doing unnecessary work, as the preferences branch will only be processed
* the first time.
*
* @param aPrefBranch Preferences branch to import from. The preferences
* under this branch can specify whitelist (ALLOW_ACTION)
* or blacklist (DENY_ACTION) additions using perference
* names of the form:
* * <BRANCH>.whitelist.add.<ID>
* * <BRANCH>.blacklist.add.<ID>
* Where <ID> can be any valid preference name.
* The value is expected to be a comma separated list of
* host named. eg:
* * something.example.com
* * foo.exmaple.com,bar.example.com
*
* @param aPermission Permission name to be passsed to the Permissions
* Manager.
*/
importFromPrefs(aPrefBranch, aPermission) {
if (!aPrefBranch.endsWith(".")) {
aPrefBranch += ".";
}
// Ensure we only import this pref branch once.
if (gImportedPrefBranches.has(aPrefBranch)) {
return;
}
importPrefBranch(
aPrefBranch + "whitelist.add",
aPermission,
Services.perms.ALLOW_ACTION
);
importPrefBranch(
aPrefBranch + "blacklist.add",
aPermission,
Services.perms.DENY_ACTION
);
gImportedPrefBranches.add(aPrefBranch);
},
};
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