discourse/lib/validators/password_validator.rb

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require_dependency "common_passwords/common_passwords"
class PasswordValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
return unless record.password_required?
if value.nil?
record.errors.add(attribute, :blank)
elsif value.length < SiteSetting.min_password_length
record.errors.add(attribute, :too_short, count: SiteSetting.min_password_length)
elsif SiteSetting.block_common_passwords && CommonPasswords.common_password?(value)
record.errors.add(attribute, :common)
end
end
end