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Returned null in case of empty cookie value #196

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merged 7 commits into from
Feb 16, 2021

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vsin12
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@vsin12 vsin12 commented Jun 17, 2020

  1. some of the old sites by mistake send a blank cookie, and whenever a blank cookie is encountered, failed to parse cookie error comes up - so I made a fix of checking the length and accordingly calling callback with null value.

Note: Either this fix, or CookieJar constructor needs to take SetCookieOptions too, as ignoreError is part of SetCookieOptions interface

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ruoho commented Aug 24, 2020

Hi @vsin12, would you be able to update the PR with a test?

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vsin12 commented Aug 24, 2020

@ruoho : Sorry, but I didn't get you ? Do you want me to give a scenario while it was breaking or you want me to write a test to check my pr ?

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You wrote: Note: Either this fix, or CookieJar constructor needs to take SetCookieOptions too, as ignoreError is part of SetCookieOptions interface

ignoreError doesn't apply to storage: ignoreError - boolean - default false - silently ignore things like parse errors and invalid domains. Store errors aren't ignored by this option -- so I'm not sure we need to do any more here, in terms of implementation. We might want to start a project to review ignoreError and its applications --- it might be better to have that apply globally, but we'd have to think that through.

In terms of this P/R; I think I'd like to see the change use validators, as suggested, and then have a simple unit test added that demonstrates the use-case (an empty cookie).

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Co-authored-by: Andrew Waterman <awaterma@awaterma.net>
@ShivanKaul ShivanKaul linked an issue Sep 21, 2020 that may be closed by this pull request
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I think we still need a unit test for this fix. :)

@awaterma awaterma self-assigned this Oct 20, 2020
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@vsin12 can you change this PR to allow edits from maintainers? I have a few changes I would like to push to this PR.

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vsin12 commented Nov 23, 2020

@vsin12 can you change this PR to allow edits from maintainers? I have a few changes I would like to push to this PR.

Done.

@vsin12 vsin12 requested a review from awaterma November 24, 2020 18:19
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I'll discuss this today; I think we want to add a suggestion to return an error when presented with an empty cookie.

if(!validators.isNonEmptyString(cookie) && !validators.isObject(cookie) && ( cookie instanceof String && cookie.length == 0)) {
return cb(null);
}

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Just looked at this in context, and I think this is fine. Will discuss today.

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Please see comment below; I think we may want an Error here.

this.callback
);
},
"results in a error being returned because of missing parameters": function(err, cookies) {
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We don't actually return an error, we are invoking the callback with a Null here. Should we invoke the CB with an Error()?

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Approved. We may want to add error checking/throwing at some point, but that's probably in a major release.

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CookieJar().setCookie crashes when empty cookie is passed
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