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Deduplicate entries

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Duplicate entries were deduplicated during saving but not checked for
when verifying for at least 2 options set. This lead to being able to
have polls with only a single vote.
Now deduplication is run at the start of the creation function.
This commit is contained in:
Wolvan 2022-01-11 22:04:10 +01:00
parent cb0ec9dfa1
commit 39d14aff1c
1 changed files with 5 additions and 2 deletions
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7
src/backend.ts
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@ -70,8 +70,11 @@ export default async function init(router: Router, polls: Storage): Promise<void
multiSelect: boolean,
captcha: boolean
}): Promise<Poll | string> {
if (!Array.isArray(pollData.options) || pollData.options.filter(i => i).length < 2)
return "Options must be an array and have at least 2 entries";
if (!Array.isArray(pollData.options) || pollData.options
.reduce((prev: string[], curr: string) => prev.concat(prev.includes(curr) ? "" : curr), [])
.filter(i => i).length < 2
)
return "Options must be an array and have at least 2 different entries";
if (pollData.options.filter(i => i).length > MAX_POLL_OPTIONS)
return "Only " + MAX_POLL_OPTIONS + " options are allowed";