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dont update the auth token twice #1037

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merged 2 commits into from
Oct 14, 2016
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icewind1991
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The token is already updated in updateTokenActivity

Saves an update query for each request made

stacktraces for both queries on master:

cc @ChristophWurst

@icewind1991 icewind1991 added the 3. to review Waiting for reviews label Aug 24, 2016
@icewind1991 icewind1991 added this to the Nextcloud 11.0 milestone Aug 24, 2016
@@ -609,7 +609,6 @@ private function checkTokenCredentials(IToken $dbToken, $token) {
return false;
}
$dbToken->setLastCheck($now);
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is that one then required at all?

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yes, otherwise the checks are performed on every request, see above

if ($lastCheck > ($now - 60 * 5)) {
    // Checked performed recently, nothing to do now
    return true;
}

@ChristophWurst
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Hm, $this->tokenProvider->updateTokenActivity($dbToken); updates the last_check just coincidentally. Not sure if we should rely on that magic.

@ChristophWurst
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if only the activity was updated recently, the update would be ignored then. See

/**
* Update token activity timestamp
*
* @throws InvalidTokenException
* @param IToken $token
*/
public function updateTokenActivity(IToken $token) {
if (!($token instanceof DefaultToken)) {
throw new InvalidTokenException();
}
/** @var DefaultToken $token */
$now = $this->time->getTime();
if ($token->getLastActivity() < ($now - 60)) {
// Update token only once per minute
$token->setLastActivity($now);
$this->mapper->update($token);
}
}

@icewind1991
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since lastActivity is updated more often than lastChecked that shouldn't be a problem, it will still recheck the token every 5 min.

The only "loss" is that lastActivity can lag behind a max of 1min, but that also means that we only have 1 update query for tokens per min which should help with db load on large systems (updates/inserts being way more expensive than reads)

@icewind1991 icewind1991 force-pushed the no-double-token-update branch 2 times, most recently from def7f7d to 9810907 Compare August 26, 2016 16:54
@rullzer
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rullzer commented Aug 28, 2016

I agree with @icewind1991 that lagging behind a bit is not that big of a deal. If it is max 1 minute. Fine by me.

But I also agree with @ChristophWurst that we should not depend on dark magic. So please make sure it is properly tested.

Will take a more in depth look tomorrow.

@MorrisJobke
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Will take a more in depth look tomorrow.

Tomorrow is over 😉

@rullzer
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rullzer commented Sep 1, 2016

Tomorrow is over 😉

True ;)

I'm still torn. I like the improvement but I feel this will break once somebody at some point moves code around. So can we have unit tests for this behaviour? Then it is 🚀 for me!

@MorrisJobke MorrisJobke added 2. developing Work in progress and removed 3. to review Waiting for reviews labels Sep 1, 2016
@MorrisJobke
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I'm still torn. I like the improvement but I feel this will break once somebody at some point moves code around. So can we have unit tests for this behaviour? Then it is for me!

@icewind1991 Could you add unit tests for this? Thanks

@icewind1991
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Added tests to ensure the token times are updated

@MorrisJobke
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There was 1 failure:
1) Test\User\SessionTest::testValidateSessionNoPassword
Expectation failed for method name is equal to <string:updateToken> when invoked 1 time(s).
Method was expected to be called 1 times, actually called 0 times.

@MorrisJobke MorrisJobke added 3. to review Waiting for reviews and removed 2. developing Work in progress labels Oct 11, 2016
@MorrisJobke
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Tested and works 👍

@codecov-io
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codecov-io commented Oct 11, 2016

Current coverage is 56.39% (diff: 100%)

Merging #1037 into master will decrease coverage by 0.01%

@@             master      #1037   diff @@
==========================================
  Files          1070       1070          
  Lines         60432      60490    +58   
  Methods        6817       6825     +8   
  Messages          0          0          
  Branches          0          0          
==========================================
+ Hits          34087      34111    +24   
- Misses        26345      26379    +34   
  Partials          0          0          

Sunburst

Diff Coverage File Path
•••••••••• 100% lib/private/User/Session.php

Powered by Codecov. Last update cc4b514...90db361

@rullzer
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rullzer commented Oct 14, 2016

ok test. Fine by me. LGTM then.
@ChristophWurst you are fine as well?

@ChristophWurst
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👍 I guess 🙈

@ChristophWurst ChristophWurst merged commit 53eb0f7 into master Oct 14, 2016
@ChristophWurst ChristophWurst deleted the no-double-token-update branch October 14, 2016 12:53
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6 participants