How to Implement Content Filtering in iOS App using HTTPS URL?

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Hi everyone,

I'm working on an iOS app where I need to implement content filtering functionality.

I've successfully implemented a network extension target in my iOS app to filter data locally. However, I'm now aiming to extend this functionality to filter content over HTTPS. Currently, I'm utilizing a local data source for filtering, but I want to explore options for filtering content directly over HTTPS connections, like this URL: https://dns.nextdns.io/46d65d.

I've reviewed the available Apple APIs and documentation but haven't found a straightforward solution for HTTPS content filtering. Can anyone provide guidance or suggest any relevant resources for implementing HTTPS content filtering within a network extension target on iOS?

Any help or insights would be greatly appreciated!

Thank you in advance!

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Ozerianskyy_coro

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Answer 1

On iOS, NE filter data providers get NEFilterBrowserFlow objects, which yield the plaintext data from an HTTPS request.

IMPORTANT That a key reason for all the constraints on filter providers:

There are strict limits on how you can deploy a content filter provider. See TN3134 Network Extension provider deployment.
Filter data run in a tight sandboxed, as discussed here.

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How to Implement Content Filtering in iOS App using HTTPS URL?

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