How to use the isIn function from validator

webhook.ctrl.js

GitHub: nunux-keeper/keeper-core-api

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req.sanitizeBody('secret').trim()
req.sanitizeBody('active').toBoolean()
req.checkBody(webhookSchema)
req.checkBody('labels', 'Invalid label filter (should be a label ID)').optional().isArrayOf(validator.isHexadecimal)
req.checkBody('events', 'Invalid event filter (should be create, update or delete)').optional().isArrayOf(item => {
  return validator.isIn(item, ['create', 'update', 'delete'])
})
const validationErrors = req.validationErrors(true)
if (validationErrors) {
  return next(new errors.BadRequest(null, validationErrors))

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nconf-validator.js

GitHub: mihirgokani007/nconf-validator

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// Checks to be performed in specific situations.
// These are not directly exposed to users.
var manualChecks = {
  containsCheck: function(options, x) {
    x = isString(x) ? x.trim() : '';
    check(x, "one of the possible values: " + options.join(","), validator.isIn(x, options));
  },
  typeCheck: function(fn, x) {
    var name = fn.name;
    check(x, "an instance of type " + name, manualTypeChecks[name](x));

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express-validator2.js

GitHub: yinhaixiang/express-validator2

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    return validator.isBefore(value);
  }
  return true;
},
isIn: function(rule, value) {
  return validator.isIn(value, rule);
},
isCreditCard: function(rule, value) {
  if (rule) {
    return validator.isCreditCard(value);

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+ 5 other calls in file

signupController.js

GitHub: vienlee99/Software-Engineering-19_1

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validateUsername(username, password, mobilephone, usertype) {
  return (
    validator.isAlphanumeric(username) &&
    /^((84|0[3|5|7|8|9])+([0-9]{8}))$/.test(mobilephone) &&
    validator.isIn(usertype, [ 1, 2]) &&
    validator.isLength(username, { min: 4, max: 32 }) &&
    validator.isLength(password, { min: 6, max: 32 })
  );
}

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users.js

GitHub: CVELab/Vulnogram

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    .custom((value, {
    req
}) => {
    // validate username if it is a privileged user
    // username from unprivileged users will be ignored
    if ((req.user.priv != 0) || validator.isIn(value, [0, 1, 2])) {
        return true;
    }
    return false;
})

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register.js

GitHub: lasuillard/accompany

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if ( !((validator.isAlphanumeric(id) && validator.isLength(id, { min: 6, max: 45 }))
  && validator.isLength(password, { min: 6, max: 100 })
  && (validator.isAlphanumeric(nickname) && validator.isLength(nickname, { min: 2, max: 45 }))
  && validator.isEmail(email)
  && (validator.isAlphanumeric(username) && validator.isLength(username, { min: 1, max: 16 }))
  && validator.isIn(gender, ['M', 'F'])
  && validator.isInt(age, { min: 0, max: 200 })) )
  return res.status(400).send({ message: 'Form validation has failed.' })
// preprocess
gender = (gender === 'M') ? 1

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