WeChat ID
aaronpk_tv
Wednesday, November 6, 2019
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37 min
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Malmö, Skåne, Sweden • Wed, November 6, 2019 7:43am -
Fried Cauliflower and Potatoes
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Malmö, Skåne, Sweden • Wed, November 6, 2019 8:18am
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at MalmöMässanMalmö, Skåne, Sweden • Wed, November 6, 2019 8:19amØredev day 1!
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dietrich
https://mastodon.social/@dietrich
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Nov 5
Feels like Gmail folders/labels are loading reeeeaaaallllyyy slow these days.
half the time gmail fails to show some of the labels on an email, which is great when I try to go add it, and instead it then toggles the label off 🤦♂️ -
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Incredibly excited to hear @aaronpk talk about How To Hack OAuth! Such a relevant topic to my current work and a talk I've been looking forward to since it was announced! #oredev
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This is absolutely how it feels trying to learn OAuth when you're first starting out.... Ok fine, this is how I still feel some days @aaronpk #oredev
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Super interesting talk about hacking #oauth by @aaronpk ... insightful!
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A quick and easy visualization of Back Channel data transfer vs Front Channel data transfer by @aaronpk at #oredev!
I'll now be sitting here dreaming of a world where kitties come to give me my access tokens ..
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Darryl Young
https://twitter.com/darryl_young
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Nov 6
Ah, that’s a shame. It seemed to be going well so far and I thought I'd be done today but since getting "invalid_grant" I've made no progress (I'm using it in an Expo app). I've seen it mentioned in a few places but nobody seems to have a solution. Thanks for the quick reply. 👍
They pushed out some changes a little bit ago and I have been able to exchange the authorization code and get the user info now! I updated my post so maybe take a look through it again. https://developer.okta.com/blog/2019/06/04/what-the-heck-is-sign-in-with-apple -
Slides from my "How to Hack OAuth" talk at #oredev are up!
https://speakerdeck.com/aaronpk/how-to-hack-oauth-oredev-2019
Thanks everyone for coming to watch and I hope you got something out of it! I'll post again when the video is out! -
Mike Ortiz
https://twitter.com/ortizmj12
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Nov 1
hey @aaronpk, thanks again for the great talk at #bsidespdx! Any chance you'll be sharing the slide deck? I wanted to review them again and there were some links in there I wanted to follow up on :)
Video is up and slides are linked from there! https://www.youtube.com/watch?v=xSDeToCyJjo&list=PLRyLn6THA5wN05b3qJ6N0OpL3YbritKI- -
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Darryl Young
https://twitter.com/darryl_young
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Nov 6
Hi, Aaron. Thanks for the link to your great article. Unfortunately, for me, I still can't get past the "invalid_grant" issue. I'm doing this for an Expo (React Native) app so things are slightly different in that I don't need redirect_url, etc. but generally it's the same. Hmm.
Why do you say you don't need a redirect_uri? That's probably the problem if you're not including it.
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Darryl Young
https://twitter.com/darryl_young
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Nov 6
As I'm also using Expo, I followed the following to start with and there was no redirect_uri used.
https://medium.com/appandflow/eli5-sign-in-with-apple-for-react-native-using-expo-sdk35-node-js-5210cdb94bd6
I tried with one and it didn't make a difference. Also, in Apple's documentation, it doesn't show redirect_uri as being required.
https://developer.apple.com/documentation/signinwithapplerestapi/generate_and_validate_tokens
Huh I missed that in their docs. My next guess is your client secret JWT isn't being generated properly. Try generating it with the Ruby code in my post, it's very picky. -
Darryl Young
https://twitter.com/darryl_young
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Nov 6
Good idea. I'll give that a go. Based on the Apple docs, it requires the JWT to be created "using the Elliptic Curve Digital Signature Algorithm (ECDSA) with the P-256 curve and the SHA-256 hash algorithm", which I'm doing with the `jsonwebtoken` library.
https://developer.apple.com/documentation/signinwithapplerestapi/generate_and_validate_tokens
Make sure to include exactly the claims in their docs. I was finding some JWT libraries would add their own stuff into it or change things around slightly. Probably easiest to verify by base64 decoding the claims after you generate it. -
Hey! Could you do me a favor? I've published what I *hope to be* an informative and entertaining intro to OAuth & OIDC. It would be so awesome to hear your feedback so I can get better at making these types of videos! Please share it with others, too! https://www.youtube.com/watch?v=t18YB3xDfXI
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at SkajBarMalmö, Skåne, Sweden • Wed, November 6, 2019 5:02pm
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Darryl Young
https://twitter.com/darryl_young
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Nov 6
Hey. Yeah, I also wondered that so I decoded the generated JWT and it looks like exactly what's required and shown at the bottom of this document.
https://developer.apple.com/documentation/signinwithapplerestapi/generate_and_validate_tokens
Ok I was curious so I tested myself. I get the `invalid_grant` error unless I include the `redirect_uri` in the POST request with the authorization code. -
Darryl Young
https://twitter.com/darryl_young
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Nov 6
Hey. Yeah, I also wondered that so I decoded the generated JWT and it looks like exactly what's required and shown at the bottom of this document.
https://developer.apple.com/documentation/signinwithapplerestapi/generate_and_validate_tokens
I remembered why `redirect_uri` is optional in their docs 😂
They document both the auth code and refresh token request with the same list. You don't send the `redirect_uri` when using a refresh token, hence it's an optional parameter. -
Darryl Young
https://twitter.com/darryl_young
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Nov 6
Interesting. I’ll give it a go again in case I missed something. I’m not sure what the redirect_uri will be in my React Native, though. Thanks for the help, by the way. Appreciate it.
What URL are you sending people back to to have Apple deliver the authorization code to? That's the redirect URL, and you have to have configured it in the request and in the developer console anyway too.
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Darryl Young
https://twitter.com/darryl_young
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Nov 6
Interesting. I’ll give it a go again in case I missed something. I’m not sure what the redirect_uri will be in my React Native, though. Thanks for the help, by the way. Appreciate it.
Also you need to be exchanging the authorization code from a server somewhere, because you can't ship this app with the client secret built in.
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Gary
https://twitter.com/every_daydad
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Nov 6
Today during lunch I'm trying to finish the edit for Friday's video as I've got a pretty busy week ahead.
And I'll tell you what, MacOS side car basically gives you dual screen capability that fits in your backpack.
It's going to change how I travel.
🤯
How's the latency? I've been using Duet for a while, but it's a bit laggy and occasionally has some compression artifacts, so I mainly only use it as a second display for presentations. -
Gary
https://twitter.com/every_daydad
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Nov 6
There is a noticeable lag but just having a second window to hold non-priority screens is awesome.
ah bummer I was hoping they could do magic being closer to the metal at both ends. Guess it's cool that it'll be built in now tho.
Duet has been a lifesaver when I need to see speaker notes but also need to share the slides via Zoom. -
Darryl Young
https://twitter.com/darryl_young
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Nov 6
I have a GraphQL server (Prisma) and I'm sending the auth code there. Then, on that server, I'm trying to validate the auth code with Apple. Once it validates, I'd either be creating a user and sending a session token back or signing a user in by sending back a session token.
Cool, so that URL on the GraphQL server is the redirect_url, and that's what needs to be sent in that POST request.
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Bus
4.86miDistance21:22DurationStartEnd
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at Malmö RådhusMalmö, Skåne, Sweden • Wed, November 6, 2019 7:59pm
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Eggplant Parmesan
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Bus
4.51miDistance15:43DurationStartEnd
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at SkajBarMalmö, Skåne, Sweden • Wed, November 6, 2019 10:57pmKeeping the party going
