michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Provide supports for Offline Applications
michael@0:  */
michael@0: var OfflineApps = {
michael@0:   offlineAppRequested: function(aRequest, aTarget) {
michael@0:     if (!Services.prefs.getBoolPref("browser.offline-apps.notify"))
michael@0:       return;
michael@0: 
michael@0:     let currentURI = Services.io.newURI(aRequest.location, aRequest.charset, null);
michael@0: 
michael@0:     // don't bother showing UI if the user has already made a decision
michael@0:     if (Services.perms.testExactPermission(currentURI, "offline-app") != Ci.nsIPermissionManager.UNKNOWN_ACTION)
michael@0:       return;
michael@0: 
michael@0:     try {
michael@0:       if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {
michael@0:         // all pages can use offline capabilities, no need to ask the user
michael@0:         return;
michael@0:       }
michael@0:     } catch(e) {
michael@0:       // this pref isn't set by default, ignore failures
michael@0:     }
michael@0: 
michael@0:     let host = currentURI.asciiHost;
michael@0:     let notificationID = "offline-app-requested-" + host;
michael@0:     let notificationBox = Browser.getNotificationBox(aTarget);
michael@0: 
michael@0:     let notification = notificationBox.getNotificationWithValue(notificationID);
michael@0:     let strings = Strings.browser;
michael@0:     if (notification) {
michael@0:       notification.documents.push(aRequest);
michael@0:     } else {
michael@0:       let buttons = [{
michael@0:         label: strings.GetStringFromName("offlineApps.allow"),
michael@0:         accessKey: "",
michael@0:         callback: function() {
michael@0:           for (let i = 0; i < notification.documents.length; i++)
michael@0:             OfflineApps.allowSite(notification.documents[i], aTarget);
michael@0:         }
michael@0:       },{
michael@0:         label: strings.GetStringFromName("contentPermissions.neverForSite"),
michael@0:         accessKey: "",
michael@0:         callback: function() {
michael@0:           for (let i = 0; i < notification.documents.length; i++)
michael@0:             OfflineApps.disallowSite(notification.documents[i]);
michael@0:         }
michael@0:       }];
michael@0: 
michael@0:       const priority = notificationBox.PRIORITY_INFO_LOW;
michael@0:       let message = strings.formatStringFromName("offlineApps.wantsTo", [host], 1);
michael@0:       notification = notificationBox.appendNotification(message, notificationID, "", priority, buttons);
michael@0:       notification.documents = [aRequest];
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   allowSite: function(aRequest, aTarget) {
michael@0:     let currentURI = Services.io.newURI(aRequest.location, aRequest.charset, null);
michael@0:     Services.perms.add(currentURI, "offline-app", Ci.nsIPermissionManager.ALLOW_ACTION);
michael@0: 
michael@0:     // When a site is enabled while loading, manifest resources will start
michael@0:     // fetching immediately.  This one time we need to do it ourselves.
michael@0:     // The update must be started on the content process.
michael@0:     aTarget.messageManager.sendAsyncMessage("Browser:MozApplicationCache:Fetch", aRequest);
michael@0:   },
michael@0: 
michael@0:   disallowSite: function(aRequest) {
michael@0:     let currentURI = Services.io.newURI(aRequest.location, aRequest.charset, null);
michael@0:     Services.perms.add(currentURI, "offline-app", Ci.nsIPermissionManager.DENY_ACTION);
michael@0:   },
michael@0: 
michael@0:   receiveMessage: function receiveMessage(aMessage) {
michael@0:     if (aMessage.name == "Browser:MozApplicationManifest") {
michael@0:       this.offlineAppRequested(aMessage.json, aMessage.target);
michael@0:     }
michael@0:   }
michael@0: };
michael@0: