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Nov 14, 2015 Could we get ATS Multiplayer for Mac and Windows? I am a Mac user. And would really love to play MP. Showing 1-11 of 11 comments. Nov 14, 2015 @ 11:05pm Who cares about multi player just do not get it with multiplayer as trolls will use it to ram vehicles. Nov 15, 2015 @ 10:18am. Jul 18, 2019 Not everyone wants every device connected to the rest of the world during every moment of the day. When you have an iPhone, it’s too easy to also receive calls to a Mac, but this can be a nuisance if you don't want to receive calls on both devices. In this article, we cover how to stop phone calls on a Mac.
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App Transport Security (ATS) enforces secure connections between internet resources (such as the app's back-end server) and your app.
This article will introduce the security changes that App Transport Security enforceson an iOS 9 app and what this means for your Xamarin.iOS projects, it will coverthe ATS configuration options and it will cover how to opt-out of ATSATS if required. Because ATS is enabled by default, any non-secure internet connectionswill raise an exception in iOS 9 apps (unless you've explicitly allowed it).
About App Transport Security
As stated above, ATS ensures that all internet communications in iOS 9 and OS X El Capitan conform to secure connection best practices, thereby preventing accidental disclosure of sensitive information either directly through your app or a library that it is consuming.
For existing apps, implement the
HTTPS protocol whenever possible. For new Xamarin.iOS apps, you should use HTTPS exclusively when communicating with internet resources. Additionally, high-level API communication must be encrypted using TLS version 1.2 with forward secrecy.
Any connection made with NSUrlConnection, CFUrl or NSUrlSession will use ATS by default in apps built for iOS 9 and OS X 10.11 (El Capitan).
Default ATS Behavior
Since ATS is enabled by default in apps built for iOS 9 and OS X 10.11 (El Capitan), all connections using NSUrlConnection, CFUrl or NSUrlSession will be subject to ATS security requirements. If your connections do not meet these requirement, they will fail with an exception.
ATS Connection Requirements
ATS will enforce the following requirements for all internet connections:
Again, since ATS is enabled by default in iOS 9, any attempt to make a connection that doesn't meet these requirements will result in an exception being thrown.
ATS Compatible Ciphers
The following forward secrecy cipher type are accepted by ATS secured internet communications:
For more information about working with iOS internet communication classes, please see Apple's NSURLConnection Class Reference, CFURL Reference or NSURLSession Class Reference.
Supporting ATS in Xamarin.iOS
Because ATS is enabled by default in iOS 9 and OS X El Capitan, if your Xamarin.iOS app or any library or service it is using makes connection to the internet, you'll need to take some action or your connections will result in an exception being thrown.
For an existing app, Apple suggests you support the
HTTPS protocol as soon as possible. If you either can't because you are connecting to a 3rd party web service that doesn't support HTTPS or if supporting HTTPS would be impractical, you can opt-out of ATS. See the Opting-Out of ATS section below for more details.
For a new Xamarin.iOS app, you should use
HTTPS exclusively when communicating with internet resources. Again, there might be situations (like using a 3rd party web service) where this isn't possible and you'll need to opt-out of ATS.
Additionally, ATS enforces high-level API communication to be encrypted using TLS version 1.2 with forward secrecy. See the ATS Connection Requirements and ATS Compatible Ciphers sections above for more details.
While you might not be familiar with TLS (Transport Layer Security) it is the successor to SSL (Secure Socket Layer) and provides a collection of cryptographic protocols to enforce security over network connections.
The TLS level is controlled by the web service that you are consuming and is therefore outside of the app's control. Both the
HttpClient and the ModernHttpClient should automatically use the highest level of TLS encryption supported by the server.
Depending on the server that you are talking to (especially if it is a 3rd party service), you might need to disable forward secrecy or select a lower TLS level. See the Configuring ATS Options section below for more details.
Important
App Transport Security does not apply to Xamarin apps using Managed HTTPClient implementations. It applies to connections using CFNetwork HTTPClient implementations or NSURLSession HTTPClient implementations only.
Setting the HTTPClient Implementation
To set the HTTPClient Implementation used by an iOS app, double-click the Project in the Solution Explorer to open the Project Options. Navigate to iOS Build and select the desired client type under the HttpClient implementation dropdown:
Managed Handler
The Managed handler is the fully managed HttpClient handler that has been shipped with previous versions of Xamarin.iOS and is the default handler.
Pros:
Cons:
CFNetwork Handler
The CFNetwork based handler is based on the native
CFNetwork framework.
Pros:
Cons:
NSUrlSession Handler
The NSUrlSession based handler is based on the native
NSUrlSession API.
Pros:
Cons:
Diagnosing ATS Issues
When attempting to connect to the internet, either directly or from a web view in iOS 9, you might get an error in the form:
App Transport Security has blocked a cleartext HTTP (
http://www.-the-blocked-domain.com ) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
In iOS9, App Transport Security (ATS) enforces secure connections between internet resources (such as the app's back-end server) and your app. Additionally, ATS requires communication using the
HTTPS protocol and high-level API communication to be encrypted using TLS version 1.2 with forward secrecy.
Since ATS is enabled by default in apps built for iOS 9 and OS X 10.11 (El Capitan), all connections using
NSURLConnection , CFURL or NSURLSession will be subject to ATS security requirements. If your connections do not meet these requirement, they will fail with an exception.
Apple also provides the TLSTool Sample App that can be compiled (or optionally transcoded to Xamarin and C#) and used to diagnose ATS/TLS issues. Please see the Opting-Out of ATS section below for information on how to solve this issue.
Configuring ATS Options
You can configure several of the features of ATS by setting values for specifickeys in your app's Info.plist file. The following keys are available forcontrolling ATS (indented to show how they are nested):
Each key has the following type and meaning:
Opting-Out of ATS
While Apple highly suggests using the
HTTPS protocol and secure communication to internet based information, there might be times that this isn't always possible. For example, if you are communicating with a 3rd party web service or using internet delivered ads in your app.
If your Xamarin.iOS app must make a request to an insecure domain, the following changes to your app's Info.plist file will disable the security defaults that ATS enforces for a given domain:
Inside Visual Studio for Mac, double-click the
Info.plist file in the Solution Explorer, switch to the Source view and add the above keys:
If your app needs to load and display web content from non-secure sites, add the following to your app's Info.plist file to allow web pages to load correctly while Apple Transport Security (ATS) protection is still enabled for the rest of the app:
Optionally, you can make the following changes to your app's Info.plist file to completely disable ATS for all domains and internet communication:
Ats App Calls From Macbook Pro
Inside Visual Studio for Mac, double-click the
Info.plist file in the Solution Explorer, switch to the Source view and add the above keys:
Important
If your application requires a connection to an insecure website, you should always enter the domain as an exception using
NSExceptionDomains instead of turning ATS off completely using NSAllowsArbitraryLoads . NSAllowsArbitraryLoads should only be used in extreme emergency situations.
Again, disabling ATS should only be used as a last resort, if switching to secure connections is either unavailable or impractical.
Summary
This article has introduced App Transport Security (ATS) and described the way it enforces secure communications with the internet. First, we covered the changes ATS requires for a Xamarin.iOS app running on iOS 9. Then we covered controlling ATS features and options. Finally, we covered opting out of ATS in your Xamarin.iOS app.
Related Links
You can, in fact, make phone calls from your Mac. Wi-Fi (WiFi) calling is one of the perks you get when you choose to go with Apple’s complete eco-system. If you own an iPhone 5c or newer devices and one of the “Wi-Fi Calling” compatible devices (Mac, Apple Watch, iPod touch or iPad), you’re one step closer to making what Apple named “Wi-Fi calls on other devices.” It’s imperative that all your devices are properly registered under one Apple ID connected to one iCloud account.
Apple’s “Other Devices” that support Wi-Fi calling
You can use Wi-Fi Calling on these devices, even if your iPhone isn’t on the same Wi-Fi Network or turned on:
How to set up Wi-Fi calling on a Mac
This process allows you to make regular Wi-Fi calls from your Mac using your nearby iPhone connected to the same Wi-Fi network
Mac -> FaceTime -> Preferences
How to make a Wi-Fi call on your Mac
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When you’re trying to call a non-Apple user, the process looks more like this:
Ats Driver AppU.S. mobile carrier support
All of the four major carriers in the U.S. support this method of calling on from your Mac, or “Other Devices.” If you wish to check whether your smaller carrier supports the feature, visit the Apple Support website.
By enabling Wi-Fi Calling on your Mac, you allow yourself more options for making or receiving phone calls. This is particularly handy if you receive a call when your iPhone is in another room when it rings. (I really have to stop leaving my iPhone on the kitchen counter when I get my morning coffee…)
Ats App Calls From Mac Free
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