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2a90da1837
Comparison was downcasing only one side, therefore if previously existing account had a non-lowercase spelling, it would be ignored when checking for duplicates. New rake task `mastodon:maintenance:find_duplicate_usernames` will help find constraint violations that might have occured from the presence of this bug. Bump version to 2.3.3
15 lines
437 B
Ruby
15 lines
437 B
Ruby
# frozen_string_literal: true
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class UniqueUsernameValidator < ActiveModel::Validator
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def validate(account)
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return if account.username.nil?
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normalized_username = account.username.downcase.delete('.')
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scope = Account.where(domain: nil).where('lower(username) = ?', normalized_username)
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scope = scope.where.not(id: account.id) if account.persisted?
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account.errors.add(:username, :taken) if scope.exists?
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end
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end
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