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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 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, "");
+ }
+}
+
+export 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);
+ },
+};
+
+// For test use only.
+export const PermissionsTestUtils = {
+ clearImportedPrefBranches() {
+ gImportedPrefBranches.clear();
+ },
+};