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: const Ci = Components.interfaces;
michael@0: const Cr = Components.results;
michael@0: const Cu = Components.utils;
michael@0: const Cc = Components.classes;
michael@0: 
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: 
michael@0: const kEntities = { "geolocation": "geolocation",
michael@0:                     "desktop-notification": "desktopNotification",
michael@0:                     "contacts": "contacts" };
michael@0: 
michael@0: function ContentPermissionPrompt() {}
michael@0: 
michael@0: ContentPermissionPrompt.prototype = {
michael@0:   classID: Components.ID("{C6E8C44D-9F39-4AF7-BCC0-76E38A8310F5}"),
michael@0: 
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionPrompt]),
michael@0: 
michael@0:   handleExistingPermission: function handleExistingPermission(request, type, isApp) {
michael@0:     let result = Services.perms.testExactPermissionFromPrincipal(request.principal, type);
michael@0:     if (result == Ci.nsIPermissionManager.ALLOW_ACTION) {
michael@0:       request.allow();
michael@0:       return true;
michael@0:     }
michael@0:     if (result == Ci.nsIPermissionManager.DENY_ACTION) {
michael@0:       request.cancel();
michael@0:       return true;
michael@0:     }
michael@0: 
michael@0:     if (isApp && (result == Ci.nsIPermissionManager.UNKNOWN_ACTION && !!kEntities[type])) {
michael@0:       request.cancel();
michael@0:       return true;
michael@0:     }
michael@0: 
michael@0:     return false;
michael@0:   },
michael@0: 
michael@0:   getChromeWindow: function getChromeWindow(aWindow) {
michael@0:      let chromeWin = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
michael@0:                             .getInterface(Ci.nsIWebNavigation)
michael@0:                             .QueryInterface(Ci.nsIDocShellTreeItem)
michael@0:                             .rootTreeItem
michael@0:                             .QueryInterface(Ci.nsIInterfaceRequestor)
michael@0:                             .getInterface(Ci.nsIDOMWindow)
michael@0:                             .QueryInterface(Ci.nsIDOMChromeWindow);
michael@0:      return chromeWin;
michael@0:   },
michael@0: 
michael@0:   getChromeForRequest: function getChromeForRequest(request) {
michael@0:     if (request.window) {
michael@0:       let requestingWindow = request.window.top;
michael@0:       return this.getChromeWindow(requestingWindow).wrappedJSObject;
michael@0:     }
michael@0:     return request.element.ownerDocument.defaultView;
michael@0:   },
michael@0: 
michael@0:   prompt: function(request) {
michael@0:     let isApp = request.principal.appId !== Ci.nsIScriptSecurityManager.NO_APP_ID && request.principal.appId !== Ci.nsIScriptSecurityManager.UNKNOWN_APP_ID;
michael@0: 
michael@0:     // Only allow exactly one permission rquest here.
michael@0:     let types = request.types.QueryInterface(Ci.nsIArray);
michael@0:     if (types.length != 1) {
michael@0:       request.cancel();
michael@0:       return;
michael@0:     }
michael@0:     let perm = types.queryElementAt(0, Ci.nsIContentPermissionType);
michael@0: 
michael@0:     // Returns true if the request was handled
michael@0:     if (this.handleExistingPermission(request, perm.type, isApp))
michael@0:        return;
michael@0: 
michael@0:     let chromeWin = this.getChromeForRequest(request);
michael@0:     let tab = chromeWin.BrowserApp.getTabForWindow(request.window.top);
michael@0:     if (!tab)
michael@0:       return;
michael@0: 
michael@0:     let browserBundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
michael@0:     let entityName = kEntities[perm.type];
michael@0: 
michael@0:     let buttons = [{
michael@0:       label: browserBundle.GetStringFromName(entityName + ".allow"),
michael@0:       callback: function(aChecked) {
michael@0:         // If the user checked "Don't ask again", make a permanent exception
michael@0:         if (aChecked) {
michael@0:           Services.perms.addFromPrincipal(request.principal, perm.type, Ci.nsIPermissionManager.ALLOW_ACTION);
michael@0:         } else if (isApp || entityName == "desktopNotification") {
michael@0:           // Otherwise allow the permission for the current session (if the request comes from an app or if it's a desktop-notification request)
michael@0:           Services.perms.addFromPrincipal(request.principal, perm.type, Ci.nsIPermissionManager.ALLOW_ACTION, Ci.nsIPermissionManager.EXPIRE_SESSION);
michael@0:         }
michael@0: 
michael@0:         request.allow();
michael@0:       }
michael@0:     },
michael@0:     {
michael@0:       label: browserBundle.GetStringFromName(entityName + ".dontAllow"),
michael@0:       callback: function(aChecked) {
michael@0:         // If the user checked "Don't ask again", make a permanent exception
michael@0:         if (aChecked)
michael@0:           Services.perms.addFromPrincipal(request.principal, perm.type, Ci.nsIPermissionManager.DENY_ACTION);
michael@0: 
michael@0:         request.cancel();
michael@0:       }
michael@0:     }];
michael@0: 
michael@0:     let requestor = chromeWin.BrowserApp.manifest ? "'" + chromeWin.BrowserApp.manifest.name + "'" : request.principal.URI.host;
michael@0:     let message = browserBundle.formatStringFromName(entityName + ".ask", [requestor], 1);
michael@0:     let options = { checkbox: browserBundle.GetStringFromName(entityName + ".dontAskAgain") };
michael@0: 
michael@0:     chromeWin.NativeWindow.doorhanger.show(message, entityName + request.principal.URI.host, buttons, tab.id, options);
michael@0:   }
michael@0: };
michael@0: 
michael@0: 
michael@0: //module initialization
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ContentPermissionPrompt]);