102 lines
2.4 KiB
JavaScript
102 lines
2.4 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const PREF_TEST_ORIGINS = "browser.uitour.testingOrigins";
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const UITOUR_PERMISSION = "uitour";
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export class UITourChild extends JSWindowActorChild {
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handleEvent(event) {
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if (!this.ensureTrustedOrigin()) {
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return;
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}
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this.sendAsyncMessage("UITour:onPageEvent", {
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detail: event.detail,
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type: event.type,
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pageVisibilityState: this.document.visibilityState,
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});
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}
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isTestingOrigin(aURI) {
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let testingOrigins = Services.prefs.getStringPref(PREF_TEST_ORIGINS, "");
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if (!testingOrigins) {
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return false;
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}
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// Allow any testing origins (comma-seperated).
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for (let origin of testingOrigins.split(/\s*,\s*/)) {
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try {
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let testingURI = Services.io.newURI(origin);
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if (aURI.prePath == testingURI.prePath) {
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return true;
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}
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} catch (ex) {
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console.error(ex);
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}
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}
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return false;
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}
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// This function is copied from UITour.sys.mjs.
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isSafeScheme(aURI) {
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let allowedSchemes = new Set(["https", "about"]);
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if (!allowedSchemes.has(aURI.scheme)) {
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return false;
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}
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return true;
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}
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ensureTrustedOrigin() {
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if (this.browsingContext.top != this.browsingContext) {
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return false;
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}
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let uri = this.document.documentURIObject;
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if (uri.schemeIs("chrome")) {
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return true;
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}
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if (!this.isSafeScheme(uri)) {
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return false;
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}
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let permission = Services.perms.testPermissionFromPrincipal(
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this.document.nodePrincipal,
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UITOUR_PERMISSION
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);
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if (permission == Services.perms.ALLOW_ACTION) {
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return true;
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}
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return this.isTestingOrigin(uri);
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}
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receiveMessage(aMessage) {
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switch (aMessage.name) {
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case "UITour:SendPageCallback":
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this.sendPageEvent("Response", aMessage.data);
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break;
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case "UITour:SendPageNotification":
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this.sendPageEvent("Notification", aMessage.data);
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break;
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}
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}
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sendPageEvent(type, detail) {
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if (!this.ensureTrustedOrigin()) {
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return;
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}
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let win = this.contentWindow;
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let eventName = "mozUITour" + type;
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let event = new win.CustomEvent(eventName, {
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bubbles: true,
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detail: Cu.cloneInto(detail, win),
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});
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win.document.dispatchEvent(event);
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}
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}
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