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perf: Use more performant way to obtain and check the email as a login name with token login#41927

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perf/login-with-email-token
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perf: Use more performant way to obtain and check the email as a login name with token login#41927
juliusknorr merged 3 commits intomasterfrom
perf/login-with-email-token

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@juliusknorr juliusknorr commented Nov 30, 2023 •
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UserManager::getByEmail is slow on large userbases so we should avoid it where possible.

  • When logging in with a token we first try to verify against the login name passed but then do a second attempt using the email address. As we already know the user id that we need to look up the email for we can use the stored uid from the token and compare the email instead of searching by mail
  • Revert change to always use an sql cast that was a behavioral change from 8bbdd9e between 24 and 25
  • Add a partial index to the configvalue to ensure that most email checks can use an indexed query -> Moved to perf: Add partial index on configvalue of preferences table #42022
    KEY `tmp_configvalue_index` (`configvalue`(80)),
    • OCI doesn't like that index cannot create index on expression with datatype LOB

TODO:

  • Come up with a good approach for adding a test case to avoid future regressions in performance

@juliusknorr juliusknorr force-pushed the perf/login-with-email-token branch from b396c27 to f4668c2 Compare November 30, 2023 15:55
@juliusknorr juliusknorr requested review from a team, come-nc, icewind1991, kesselb, nfebe and nickvergessen and removed request for a team November 30, 2023 15:55
@nickvergessen nickvergessen added this to the Nextcloud 29 milestone Nov 30, 2023
@juliusknorr juliusknorr marked this pull request as ready for review November 30, 2023 19:50
@juliusknorr juliusknorr force-pushed the perf/login-with-email-token branch from 381db45 to 0ccf84b Compare November 30, 2023 19:51
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juliusknorr commented Dec 4, 2023

@nickvergessen As discussed via chat, I split out the additional index and moved it to #42022 to not forget about that.

kesselb
kesselb reviewed Dec 4, 2023
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lib/private/User/Session.php
if (!(\count($users) === 1 && $this->login($users[0]->getUID(), $password))) {

if ($isTokenPassword) {
$dbToken = $this->tokenProvider->getToken($password);
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Nice shortcut ;)

nfebe
nfebe approved these changes Dec 4, 2023
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So far, so good.

By the way, I think it's helpful to attach the point explanations in the pull request description in the various commit bodies.

@juliusknorr juliusknorr merged commit 6c52242 into master Dec 5, 2023
@juliusknorr juliusknorr deleted the perf/login-with-email-token branch December 5, 2023 10:11
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juliusknorr commented Dec 5, 2023

/backport to stable28

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juliusknorr commented Dec 5, 2023

/backport to stable27

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juliusknorr commented Dec 5, 2023

/backport to stable26

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juliusknorr commented Dec 5, 2023

/backport to stable25

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nfebe commented Dec 6, 2023

Automatic backports have failed...

@juliusknorr juliusknorr mentioned this pull request Dec 6, 2023
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juliusknorr commented Dec 6, 2023

/backport a3a343c,3cd1d74a815531c9b7ae25ebbf8e7c45fa566e74 to stable28

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juliusknorr commented Dec 6, 2023

/backport a3a343c,3cd1d74a815531c9b7ae25ebbf8e7c45fa566e74 to stable27

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juliusknorr commented Dec 6, 2023

/backport a3a343c,3cd1d74a815531c9b7ae25ebbf8e7c45fa566e74 to stable26

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juliusknorr commented Dec 6, 2023

/backport a3a343c,3cd1d74a815531c9b7ae25ebbf8e7c45fa566e74 to stable25

This was referenced Jan 9, 2024
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@blizzz blizzz mentioned this pull request Mar 5, 2024
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@kesselb kesselb kesselb left review comments

@nickvergessen nickvergessen nickvergessen approved these changes

@nfebe nfebe nfebe approved these changes

@icewind1991 icewind1991 Awaiting requested review from icewind1991 icewind1991 is a code owner automatically assigned from nextcloud/server-backend

@come-nc come-nc Awaiting requested review from come-nc come-nc is a code owner automatically assigned from nextcloud/server-backend

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