Multiple user profiles / sessions in one CEF instance - chromium-embedded

Is it possible to have multiple user profiles—with separate cookies, history, local storage, etc.—running at the same time in one CEF (Chromium Embedded Framework) instance? The goal is to allow multiple browsing "sessions" side-by-side in one window (it's actually an OpenGL app).
There are two possible solutions I've looked into, each with its own problems:
Using CefCookieManager
This is possible to do for just cookies by creating multiple CefCookieManagers. However, there does not seem to be similar API for history and local storage, which are now still shared.
Using CefSettings::cache_path
CefSettings settings;
CefString(&settings.cache_path).FromASCII("C:\\CefCache");
CefInitialize(args, settings, app, nullptr);
The problem here is that CefSettings is associated with the global CEF instance rather than with each browser/client.
Is there a way to do this that I have not discovered?

If it's only about cookies and local storage, and you host content using custom scheme handler or request interception, then you could use different domains/subdomains for each profile. See this topic for reference: http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=11695 .
Regarding history, you could implement history on your own by using the OnBeforeBrowse callback.
In the topic referenced above it is also mentioned that it's technically possible to specify a different cache path per CefRequestContext (can be provided during browser creation). So working on a patch for CEF may be another option.
EDIT: CEF revision 2040 adds support for complete isolation of storage and permissions per request context, see comment #7 in Issue 1044: https://code.google.com/p/chromiumembedded/issues/detail?id=1044#c7

Related

Codename One Preferences/Storage permissions

I have developed and published an app in Google Play Store, which only send simple String request to REST API and store the results in the Preferences. The same app is also submitted to Windows Store for publication, however it was rejected due to the following reason:
The app declares use of the sensitive capability [musicLibrary, picturesLibrary, videosLibrary] without appearing to access the declared capability. Please removed the sensitive capability declaration and re-submit the app.
Upon inspection to Google Play Store submission, I noticed the same permissions are requested:
This app has access to:Photos/Media/Filesread the contents of your USB storagemodify or delete the contents of your USB storageStorageread the contents of your USB storagemodify or delete the contents of your USB storageOtherreceive data from Internetview network connectionsfull network accessprevent device from sleeping
So my question is, do Preferences really need these permissions, or can I set some kind of build hints to remove these permission requests, especially for UWP build? I have also tried to set android.blockExternalStoragePermission build hint, but the permissions are still requested in Android build. I have yet to try iOS build since currently I don't have Apple Developer account.
Thank you very much in advance.
Edit #1 (23/10/2018):
Upon further inspection, I found that I have mistakenly uploaded the version that didn't declare android.blockExternalStoragePermission to Google Play Store, so all good on Android version.
Currently I'm not using any of cn1libs, and here's the list of all classes imported in my application:
java.util.HashMapjava.util.Mapjava.util.Randomcom.codename1.components.InfiniteProgresscom.codename1.components.ToastBarcom.codename1.components.ToastBar.Statuscom.codename1.io.CharArrayReadercom.codename1.io.JSONParsercom.codename1.io.Logcom.codename1.io.NetworkManagercom.codename1.io.Preferencescom.codename1.io.rest.Responsecom.codename1.io.rest.Restcom.codename1.l10n.L10NManagercom.codename1.ui.Buttoncom.codename1.ui.Componentcom.codename1.ui.Containercom.codename1.ui.Dialogcom.codename1.ui.FontImagecom.codename1.ui.Formcom.codename1.ui.Labelcom.codename1.ui.events.ActionEventcom.codename1.ui.events.ActionListenercom.codename1.ui.layouts.BorderLayoutcom.codename1.ui.layouts.FlowLayoutcom.codename1.ui.layouts.GridLayoutcom.codename1.ui.plaf.Bordercom.codename1.ui.plaf.Stylecom.codename1.ui.plaf.UIManagercom.codename1.ui.util.Resources
So my original question remain, how do I set the build hints to prevent the same external storage read/write permission in Windows and iOS?
See the section titled "Android Permissions" here, for a list of some API's that might trigger extra permissions. I suggest extracting the manifest from the XML and inspecting it. It should include two permissions based on your description you should have two permissions there:
android.permission.WRITE_EXTERNAL_STORAGE - which you should have been disabled when you applied android.blockExternalStoragePermission
android.permission.INTERNET - this one you actually need
I'm assuming you have a permission for media access and here it becomes a question of where it came from?
Did you use a cn1lib that might include a feature that triggers this?
Do you have a feature in the app that isn't active yet?
Once you have the specific name or results of this investigation comment here and I'll revise the answer with more details.

managing app engine versions through API calls

Is there anyway that I can manage the appengine versions and instances through API calls?
What I mean by managing is to start/stop/delete versions deployed to the appengine through API calls.
Is that possible by using gcloud sdk commands from command line ?
Another question , does google provide APIs (or commands) to check the status of running instances ? check if the instance is idle or not and how long its being idle
There is a beta API for managing versions and services here:
https://cloud.google.com/appengine/docs/admin-api/
The API is still beta because it's under active development; there are still a few methods and fields which aren't implemented. Shortly after those are complete, the API will be marked "v1", though v1beta4 and v1beta5 will continue to be supported for several months in transition.
For example, the API doesn't yet include operations on instances, but I expect that List/Get/Delete will be available fairly soon. Since App Engine automatically creates instances for you, there is no create instance API.
I just noticed that the most recent documentation re-skin seems to have hidden the documentation for the REST interface, so I'll drop that link there so you that you can find the currently implemented methods. (Version.Update is also implemented for a few fields, so that documentation update should be coming out very soon.)
2020 UPDATE: You can do it using the apps.services.versions api. You can stop/start a version with the PATCH method, setting the mask to "servingStatus" and in the body set the "servingStatus" field to "STOPPED"/"SERVING".
Similarly, you can use the delete/create methods to launch and remove new versions
Reference:
https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions/patch

Access Sitecore DB from API in Console application

I would like to accesss the sitecore DB and items from console application like
Sitecore.Data.Database db = Sitecore.Context.Database
or
Sitecore.Data.Database db = Sitecore.Data.Database.GetDatabase("master")
how do I configure and setup my console application to access the DB as above?
Thanks Everyone for the suggestion, I am really interested in config changes, I used webservice, but it has very limited methods. For example, if I would like create an Item with the template and insert the item with prepopulated value, there is no such option. The reason I am looking for the console apporach is I would like to import the contents from XML or excel sheet and push those to the sitecore tree, eventually use the scheduled task to run the console app periodically. I do not want to copy the entire web.config and app_config. If anyone has already done this, could you please post your steps and necessary config changes?
You have two options I think:
1) Import the Sitecore bits of a website's web.config into your console application's app.config, so that the Sitecore API "just works"
I'm sure I read a blog post about this, but I can't find the reference right now. (I will have another look) But I think the simple but long winded approach is to copy all of the <sitecore/> element and all the separate files it references. I'm fairly sure you can whittle this down to a subset of the config required for data access with a bit of thinking.
2) Don't use the Sitecore API directly, connect to a web service that exposes access to it remotely.
There are a few of these that already exist. Sitecore itself exposes one, Sitecore Rocks has one, and Hedgehog TDS has one too. And you can always write your own (since any web service running inside the Sitecore ASP.Net app can make database calls and report values back and forth - just remember to consider security if this web service might end up exposed externally for any reason)
John West links to some relevant stuff here:
http://www.sitecore.net/Learn/Blogs/Technical-Blogs/John-West-Sitecore-Blog/Posts/2013/09/Getting-Data-Out-of-the-Sitecore-ASPNET-CMS.aspx
-- Edited to add --
I've not found the blog post I remember. But I came across this SO thread:
Accessing Sitecore API from a CLI tool
which refers to this blog post:
http://www.experimentsincode.com/?p=232
which I think gives the info you'll need for option 1.
(And it reminds me that, of course, when you copy the config stuff you have to copy the Sitecore binaries into your app's folder as well)
I would just like to expand on #JermDavis' post and note that Sitecore isn't a big fan of being accessed when not in a web application. However, if you still want to do this, you will need to make sure that you have all of the necessary configuration settings from the web.config and App_Config of your site in your console application's app.config file.
Moreover, you will never be able to call Sitecore.Context in a console application, as the Sitecore Context sits on top of the HttpContext which means that it must be an application and have a valid request for you to use it. What you are looking for is something more along the lines of Sitecore.Configuration.Factory.GetDatabase("master").
Good luck and happy coding :)
This sounds like a job for the Sitecore Item Web API. I use the Sitecore Item Web API whenever I need to access Sitecore data from the master database outside the context of the Content Management server or outside of the context of the Sitecore application. The Web API definitely does not allow you to do everything that the standard Sitecore API does but it can act as a good base and I now extend upon the Web API instead of writing my own custom web services whenever possible.
Thanks to JemDavis's advise.
After I copied the configuration and made changes to config section to get rid of conflicts. I copied almost all of Sitrecore, analytics and lucene dlls, it worked great.
Only thing you have to remember is, copy the app_config folder to the same location where your dlls are.
Thanks again JemDavis....

Disable Session.checkAgent for one action

I have built a controller that is uses the media view to stream videos to users. When someone accesses the controller from an iOS device, the user agent being sent is not matching and the session logs out.
I am using the iPad plugin for Flow Player and I have seen other posts about flash not sending the correct user agent strings, so instead of messing with that, I'd like to disable Session.checkAgent for that specific action. I have tried adding it to beforeFilter(), but the check clearly happens before that point.
Is there some other method I can override to implement this?
I haven't tested it, but if you know (part of) the URL, you can check the $_GET['url'] inside your app/Config/core.php and modify the session configuration based upon its value, For example, $_GET['url'] starts with '/videos/view'.
You need to do this inside the configuration file, otherwise the session is already started as you already discovered.
Note that $_GET['url'] is only used in older versions of CakePHP. For newer versions of CakePHP, you may need to user $_SERVER['REQUEST_URI'] or another $_SERVER environment variable.

GAE always on feature = static VIP?

I'm wondering if the always on feature would be similar to having a static VIP? if so then I can directly edit zone file to go that address instead of via the ghs.google.com dns system. Hopefully this should be better in regards to filtering/censorship etc.
No. The always-on feature affects the provision of application instances on the backend; it has no effect on the routing of requests from the frontend to your app.

Resources