32 lines
877 B
JavaScript
32 lines
877 B
JavaScript
const invalidCharError = {
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valid: false,
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error: 'contains invalid characters'
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};
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const validationSuccess = { valid: true, error: null };
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const usernameTooShort = { valid: false, error: 'is too short' };
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const usernameIsHttpStatusCode = {
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valid: false,
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error: 'is a reserved error code'
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};
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const isNumeric = num => !isNaN(num);
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const validCharsRE = /^[a-zA-Z0-9\-_+]*$/;
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const isHttpStatusCode = str =>
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isNumeric(str) && parseInt(str, 10) >= 100 && parseInt(str, 10) <= 599;
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const isValidUsername = str => {
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if (!validCharsRE.test(str)) return invalidCharError;
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if (str.length < 3) return usernameTooShort;
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if (isHttpStatusCode(str)) return usernameIsHttpStatusCode;
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return validationSuccess;
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};
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module.exports = {
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isNumeric,
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isHttpStatusCode,
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isValidUsername,
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validationSuccess,
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usernameTooShort,
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usernameIsHttpStatusCode,
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invalidCharError
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};
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