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dibblego's profile
Tony Morris
Tony Morris
Tony Morris
@dibblego

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Tony Morris

@dibblego

Power ∧ Attitude ⇒ Performance

Brisbane, Australia
tmorris.net
Joined May 2009

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    1. Tony Morris‏ @dibblego 4 May 2018
      Replying to @raam86 @JadenGeller

      That would mean this bug cannot occur then, wouldn't it :)

      1 reply 0 retweets 1 like
    2. Jaden Geller  🧚‏ @JadenGeller 4 May 2018
      Replying to @dibblego @raam86

      No? You could literally log the HTTP request before processing it.

      1 reply 0 retweets 0 likes
    3. raamroshhai‏ @raam86 4 May 2018
      Replying to @JadenGeller @dibblego

      userPass = requests.pass #is it working???? Log(userPass) # Security userPass = hash(userPass)

      1 reply 0 retweets 0 likes
    4. Jaden Geller  🧚‏ @JadenGeller 4 May 2018
      Replying to @raam86 @dibblego

      You can have the same bug even if you don’t reassign the variable after logging...

      2 replies 0 retweets 0 likes
    5. Tony Morris‏ @dibblego 4 May 2018
      Replying to @JadenGeller @raam86

      No. Let me make a strong claim. 1. I have not used a variable in 15 years. 2. I have not had this class of error in that time. 3. I will never have this class of error for as long as I continue not using variables. Someone used a variable.

      1 reply 0 retweets 0 likes
    6. Jaden Geller  🧚‏ @JadenGeller 4 May 2018
      Replying to @dibblego @raam86

      I’ve observed A. I’ve observed not B. So I conclude, A implied not B. That’s not how deduction works.

      2 replies 0 retweets 0 likes
    7. Tony Morris‏ @dibblego 4 May 2018
      Replying to @JadenGeller @raam86

      Also, it's not "I've not observed B." It's that it is impossible. This can be formalised in a proof.

      1 reply 0 retweets 0 likes
    8. Jaden Geller  🧚‏ @JadenGeller 4 May 2018
      Replying to @dibblego @raam86

      Sure, you could write proofs that passwords don't get logged. That'd be great. That's a way weaker claim than not using variables automatically makes it impossible to accidentally log passwords (it doesn't).

      1 reply 0 retweets 0 likes
    9. Tony Morris‏ @dibblego 4 May 2018
      Replying to @JadenGeller @raam86

      No, I could (have, long ago) write a proof that this kind of bug cannot co-exist in the absence of variables.

      1 reply 0 retweets 0 likes
    10. Jaden Geller  🧚‏ @JadenGeller 4 May 2018
      Replying to @dibblego @raam86

      Dude, I can write a proof by contradiction in a tweet: do { request <- getRequest print request handle request } There's no mutable variables there.

      1 reply 0 retweets 0 likes
      Tony Morris‏ @dibblego 4 May 2018
      Replying to @JadenGeller @raam86

      That's not a negative proof of the claim :)

      3:07 PM - 4 May 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Jaden Geller  🧚‏ @JadenGeller 4 May 2018
          Replying to @dibblego @raam86

          Yes it is? I showed the bug can coexist in the absence of variables.

          1 reply 0 retweets 0 likes
        2. Sage Mitchell ☂️‏ @mx00s 4 May 2018
          Replying to @JadenGeller @dibblego @raam86

          In case the intended meaning of variables includes named bindings we can even get rid of those and *still* reproduce the bug: getRequest >>= liftM2 (>>) print handle

          1 reply 0 retweets 1 like
        3. Show replies

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