/files//1.5.1/validate.js
JavaScript | 609 lines | 386 code | 118 blank | 105 comment | 96 complexity | 36d9e29cbdab7c21cb6dadcdfc4435a2 MD5 | raw file
- /*
- * validate.js 1.4.1
- * Copyright (c) 2011 - 2014 Rick Harrison, http://rickharrison.me
- * validate.js is open sourced under the MIT license.
- * Portions of validate.js are inspired by CodeIgniter.
- * http://rickharrison.github.com/validate.js
- */
- (function(window, document, undefined) {
- /*
- * If you would like an application-wide config, change these defaults.
- * Otherwise, use the setMessage() function to configure form specific messages.
- */
- var defaults = {
- messages: {
- required: 'The %s field is required.',
- matches: 'The %s field does not match the %s field.',
- "default": 'The %s field is still set to default, please change.',
- valid_email: 'The %s field must contain a valid email address.',
- valid_emails: 'The %s field must contain all valid email addresses.',
- min_length: 'The %s field must be at least %s characters in length.',
- max_length: 'The %s field must not exceed %s characters in length.',
- exact_length: 'The %s field must be exactly %s characters in length.',
- greater_than: 'The %s field must contain a number greater than %s.',
- less_than: 'The %s field must contain a number less than %s.',
- alpha: 'The %s field must only contain alphabetical characters.',
- alpha_numeric: 'The %s field must only contain alpha-numeric characters.',
- alpha_dash: 'The %s field must only contain alpha-numeric characters, underscores, and dashes.',
- numeric: 'The %s field must contain only numbers.',
- integer: 'The %s field must contain an integer.',
- decimal: 'The %s field must contain a decimal number.',
- is_natural: 'The %s field must contain only positive numbers.',
- is_natural_no_zero: 'The %s field must contain a number greater than zero.',
- valid_ip: 'The %s field must contain a valid IP.',
- valid_base64: 'The %s field must contain a base64 string.',
- valid_credit_card: 'The %s field must contain a valid credit card number.',
- is_file_type: 'The %s field must contain only %s files.',
- valid_url: 'The %s field must contain a valid URL.',
- greater_than_date: 'The %s field must contain a more recent date than %s.',
- less_than_date: 'The %s field must contain an older date than %s.',
- greater_than_or_equal_date: 'The %s field must contain a date that\'s at least as recent as %s.',
- less_than_or_equal_date: 'The %s field must contain a date that\'s %s or older.'
- },
- callback: function(errors) {
- }
- };
- /*
- * Define the regular expressions that will be used
- */
- var ruleRegex = /^(.+?)\[(.+)\]$/,
- numericRegex = /^[0-9]+$/,
- integerRegex = /^\-?[0-9]+$/,
- decimalRegex = /^\-?[0-9]*\.?[0-9]+$/,
- emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
- alphaRegex = /^[a-z]+$/i,
- alphaNumericRegex = /^[a-z0-9]+$/i,
- alphaDashRegex = /^[a-z0-9_\-]+$/i,
- naturalRegex = /^[0-9]+$/i,
- naturalNoZeroRegex = /^[1-9][0-9]*$/i,
- ipRegex = /^((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){3}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})$/i,
- base64Regex = /[^a-zA-Z0-9\/\+=]/i,
- numericDashRegex = /^[\d\-\s]+$/,
- urlRegex = /^((http|https):\/\/(\w+:{0,1}\w*@)?(\S+)|)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/,
- dateRegex = /\d{4}-\d{1,2}-\d{1,2}/;
- /*
- * The exposed public object to validate a form:
- *
- * @param formNameOrNode - String - The name attribute of the form (i.e. <form name="myForm"></form>) or node of the form element
- * @param fields - Array - [{
- * name: The name of the element (i.e. <input name="myField" />)
- * display: 'Field Name'
- * rules: required|matches[password_confirm]
- * }]
- * @param callback - Function - The callback after validation has been performed.
- * @argument errors - An array of validation errors
- * @argument event - The javascript event
- */
- var FormValidator = function(formNameOrNode, fields, callback) {
- this.callback = callback || defaults.callback;
- this.errors = [];
- this.fields = {};
- this.form = this._formByNameOrNode(formNameOrNode) || {};
- this.messages = {};
- this.handlers = {};
- this.conditionals = {};
- for (var i = 0, fieldLength = fields.length; i < fieldLength; i++) {
- var field = fields[i];
- // If passed in incorrectly, we need to skip the field.
- if ((!field.name && !field.names) || !field.rules) {
- continue;
- }
- /*
- * Build the master fields array that has all the information needed to validate
- */
- if (field.names) {
- for (var j = 0, fieldNamesLength = field.names.length; j < fieldNamesLength; j++) {
- this._addField(field, field.names[j]);
- }
- } else {
- this._addField(field, field.name);
- }
- }
- /*
- * Attach an event callback for the form submission
- */
- var _onsubmit = this.form.onsubmit;
- this.form.onsubmit = (function(that) {
- return function(evt) {
- try {
- return that._validateForm(evt) && (_onsubmit === undefined || _onsubmit());
- } catch(e) {}
- };
- })(this);
- },
- attributeValue = function (element, attributeName) {
- var i;
- if ((element.length > 0) && (element[0].type === 'radio' || element[0].type === 'checkbox')) {
- for (i = 0, elementLength = element.length; i < elementLength; i++) {
- if (element[i].checked) {
- return element[i][attributeName];
- }
- }
- return;
- }
- return element[attributeName];
- };
- /*
- * @public
- * Sets a custom message for one of the rules
- */
- FormValidator.prototype.setMessage = function(rule, message) {
- this.messages[rule] = message;
- // return this for chaining
- return this;
- };
- /*
- * @public
- * Registers a callback for a custom rule (i.e. callback_username_check)
- */
- FormValidator.prototype.registerCallback = function(name, handler) {
- if (name && typeof name === 'string' && handler && typeof handler === 'function') {
- this.handlers[name] = handler;
- }
- // return this for chaining
- return this;
- };
- /*
- * @public
- * Registers a conditional for a custom 'depends' rule
- */
- FormValidator.prototype.registerConditional = function(name, conditional) {
- if (name && typeof name === 'string' && conditional && typeof conditional === 'function') {
- this.conditionals[name] = conditional;
- }
- // return this for chaining
- return this;
- };
- /*
- * @private
- * Determines if a form dom node was passed in or just a string representing the form name
- */
- FormValidator.prototype._formByNameOrNode = function(formNameOrNode) {
- return (typeof formNameOrNode === 'object') ? formNameOrNode : document.forms[formNameOrNode];
- };
- /*
- * @private
- * Adds a file to the master fields array
- */
- FormValidator.prototype._addField = function(field, nameValue) {
- this.fields[nameValue] = {
- name: nameValue,
- display: field.display || nameValue,
- rules: field.rules,
- depends: field.depends,
- id: null,
- element: null,
- type: null,
- value: null,
- checked: null
- };
- };
- /*
- * @private
- * Runs the validation when the form is submitted.
- */
- FormValidator.prototype._validateForm = function(evt) {
- this.errors = [];
- for (var key in this.fields) {
- if (this.fields.hasOwnProperty(key)) {
- var field = this.fields[key] || {},
- element = this.form[field.name];
- if (element && element !== undefined) {
- field.id = attributeValue(element, 'id');
- field.element = element;
- field.type = (element.length > 0) ? element[0].type : element.type;
- field.value = attributeValue(element, 'value');
- field.checked = attributeValue(element, 'checked');
- /*
- * Run through the rules for each field.
- * If the field has a depends conditional, only validate the field
- * if it passes the custom function
- */
- if (field.depends && typeof field.depends === "function") {
- if (field.depends.call(this, field)) {
- this._validateField(field);
- }
- } else if (field.depends && typeof field.depends === "string" && this.conditionals[field.depends]) {
- if (this.conditionals[field.depends].call(this,field)) {
- this._validateField(field);
- }
- } else {
- this._validateField(field);
- }
- }
- }
- }
- if (typeof this.callback === 'function') {
- this.callback(this.errors, evt);
- }
- if (this.errors.length > 0) {
- if (evt && evt.preventDefault) {
- evt.preventDefault();
- } else if (event) {
- // IE uses the global event variable
- event.returnValue = false;
- }
- }
- return true;
- };
- /*
- * @private
- * Looks at the fields value and evaluates it against the given rules
- */
- FormValidator.prototype._validateField = function(field) {
- var rules = field.rules.split('|'),
- indexOfRequired = field.rules.indexOf('required'),
- isEmpty = (!field.value || field.value === '' || field.value === undefined);
- /*
- * Run through the rules and execute the validation methods as needed
- */
- for (var i = 0, ruleLength = rules.length; i < ruleLength; i++) {
- var method = rules[i],
- param = null,
- failed = false,
- parts = ruleRegex.exec(method);
- /*
- * If this field is not required and the value is empty, continue on to the next rule unless it's a callback.
- * This ensures that a callback will always be called but other rules will be skipped.
- */
- if (indexOfRequired === -1 && method.indexOf('!callback_') === -1 && isEmpty) {
- continue;
- }
- /*
- * If the rule has a parameter (i.e. matches[param]) split it out
- */
- if (parts) {
- method = parts[1];
- param = parts[2];
- }
- if (method.charAt(0) === '!') {
- method = method.substring(1, method.length);
- }
- /*
- * If the hook is defined, run it to find any validation errors
- */
- if (typeof this._hooks[method] === 'function') {
- if (!this._hooks[method].apply(this, [field, param])) {
- failed = true;
- }
- } else if (method.substring(0, 9) === 'callback_') {
- // Custom method. Execute the handler if it was registered
- method = method.substring(9, method.length);
- if (typeof this.handlers[method] === 'function') {
- if (this.handlers[method].apply(this, [field.value, param, field]) === false) {
- failed = true;
- }
- }
- }
- /*
- * If the hook failed, add a message to the errors array
- */
- if (failed) {
- // Make sure we have a message for this rule
- var source = this.messages[field.name + '.' + method] || this.messages[method] || defaults.messages[method],
- message = 'An error has occurred with the ' + field.display + ' field.';
- if (source) {
- message = source.replace('%s', field.display);
- if (param) {
- message = message.replace('%s', (this.fields[param]) ? this.fields[param].display : param);
- }
- }
- this.errors.push({
- id: field.id,
- element: field.element,
- name: field.name,
- message: message,
- rule: method
- });
- // Break out so as to not spam with validation errors (i.e. required and valid_email)
- break;
- }
- }
- };
- /**
- * private function _getValidDate: helper function to convert a string date to a Date object
- * @param date (String) must be in format yyyy-mm-dd or use keyword: today
- * @returns {Date} returns false if invalid
- */
- FormValidator.prototype._getValidDate = function(date) {
- if (!date.match('today') && !date.match(dateRegex)) {
- return false;
- }
- var validDate = new Date(),
- validDateArray;
- if (!date.match('today')) {
- validDateArray = date.split('-');
- validDate.setFullYear(validDateArray[0]);
- validDate.setMonth(validDateArray[1] - 1);
- validDate.setDate(validDateArray[2]);
- }
- return validDate;
- };
- /*
- * @private
- * Object containing all of the validation hooks
- */
- FormValidator.prototype._hooks = {
- required: function(field) {
- var value = field.value;
- if ((field.type === 'checkbox') || (field.type === 'radio')) {
- return (field.checked === true);
- }
- return (value !== null && value !== '');
- },
- "default": function(field, defaultName){
- return field.value !== defaultName;
- },
- matches: function(field, matchName) {
- var el = this.form[matchName];
- if (el) {
- return field.value === el.value;
- }
- return false;
- },
- valid_email: function(field) {
- return emailRegex.test(field.value);
- },
- valid_emails: function(field) {
- var result = field.value.split(/\s*,\s*/g);
- for (var i = 0, resultLength = result.length; i < resultLength; i++) {
- if (!emailRegex.test(result[i])) {
- return false;
- }
- }
- return true;
- },
- min_length: function(field, length) {
- if (!numericRegex.test(length)) {
- return false;
- }
- return (field.value.length >= parseInt(length, 10));
- },
- max_length: function(field, length) {
- if (!numericRegex.test(length)) {
- return false;
- }
- return (field.value.length <= parseInt(length, 10));
- },
- exact_length: function(field, length) {
- if (!numericRegex.test(length)) {
- return false;
- }
- return (field.value.length === parseInt(length, 10));
- },
- greater_than: function(field, param) {
- if (!decimalRegex.test(field.value)) {
- return false;
- }
- return (parseFloat(field.value) > parseFloat(param));
- },
- less_than: function(field, param) {
- if (!decimalRegex.test(field.value)) {
- return false;
- }
- return (parseFloat(field.value) < parseFloat(param));
- },
- alpha: function(field) {
- return (alphaRegex.test(field.value));
- },
- alpha_numeric: function(field) {
- return (alphaNumericRegex.test(field.value));
- },
- alpha_dash: function(field) {
- return (alphaDashRegex.test(field.value));
- },
- numeric: function(field) {
- return (numericRegex.test(field.value));
- },
- integer: function(field) {
- return (integerRegex.test(field.value));
- },
- decimal: function(field) {
- return (decimalRegex.test(field.value));
- },
- is_natural: function(field) {
- return (naturalRegex.test(field.value));
- },
- is_natural_no_zero: function(field) {
- return (naturalNoZeroRegex.test(field.value));
- },
- valid_ip: function(field) {
- return (ipRegex.test(field.value));
- },
- valid_base64: function(field) {
- return (base64Regex.test(field.value));
- },
- valid_url: function(field) {
- return (urlRegex.test(field.value));
- },
- valid_credit_card: function(field){
- // Luhn Check Code from https://gist.github.com/4075533
- // accept only digits, dashes or spaces
- if (!numericDashRegex.test(field.value)) return false;
- // The Luhn Algorithm. It's so pretty.
- var nCheck = 0, nDigit = 0, bEven = false;
- var strippedField = field.value.replace(/\D/g, "");
- for (var n = strippedField.length - 1; n >= 0; n--) {
- var cDigit = strippedField.charAt(n);
- nDigit = parseInt(cDigit, 10);
- if (bEven) {
- if ((nDigit *= 2) > 9) nDigit -= 9;
- }
- nCheck += nDigit;
- bEven = !bEven;
- }
- return (nCheck % 10) === 0;
- },
- is_file_type: function(field,type) {
- if (field.type !== 'file') {
- return true;
- }
- var ext = field.value.substr((field.value.lastIndexOf('.') + 1)),
- typeArray = type.split(','),
- inArray = false,
- i = 0,
- len = typeArray.length;
- for (i; i < len; i++) {
- if (ext == typeArray[i]) inArray = true;
- }
- return inArray;
- },
- greater_than_date: function (field, date) {
- var enteredDate = this._getValidDate(field.value),
- validDate = this._getValidDate(date);
- if (!validDate || !enteredDate) {
- return false;
- }
- return enteredDate > validDate;
- },
- less_than_date: function (field, date) {
- var enteredDate = this._getValidDate(field.value),
- validDate = this._getValidDate(date);
- if (!validDate || !enteredDate) {
- return false;
- }
- return enteredDate < validDate;
- },
- greater_than_or_equal_date: function (field, date) {
- var enteredDate = this._getValidDate(field.value),
- validDate = this._getValidDate(date);
- if (!validDate || !enteredDate) {
- return false;
- }
- return enteredDate >= validDate;
- },
- less_than_or_equal_date: function (field, date) {
- var enteredDate = this._getValidDate(field.value),
- validDate = this._getValidDate(date);
- if (!validDate || !enteredDate) {
- return false;
- }
- return enteredDate <= validDate;
- }
- };
- window.FormValidator = FormValidator;
- })(window, document);
- /*
- * Export as a CommonJS module
- */
- if (typeof module !== 'undefined' && module.exports) {
- module.exports = FormValidator;
- }