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|
var moment = require("moment");
var events = require("events").EventEmitter;
var BUILD_IN_RULE = {
isEmail: function(email){
return verifyIsEmail(email, {});
},
isUrl: verifyIsUrl,
isNumber: verifyIsNumber,
isTel: verifyIsTel,
isColor: verifyIsColor,
isDate: verifyIsDate,
isDateTime: verifyIsDateTime,
isDateTimeLocal: verifyIsDateTimeLocal,
isMonth: verifyIsMonth,
isWeek: verifyIsWeek,
isTime: verifyIsTime,
isMobile: function(mobile){
return verifyIsMobile(mobile, {});
}
};
var RULE_TYPES = {
"text": "text",
"password": "password",
"email": "email",
"radio": "radio",
"checkbox": "checkbox",
"select-one": "select-one",
"select-multiple": "select-multiple",
"hidden": "hidden",
"search": "search",
"textarea": "textarea",
"file": "file",
"number": "number",
"range": "range",
"date": "date",
"week": "week",
"month": "month",
"time": "time",
"datetime": "datetime",
"datetime-local": "datetime-local",
"url": "url",
"tel": "tel",
"color": "color",
"submit": "submit",
"button": "button",
"reset": "reset",
"image": "image",
"fieldset": "fieldset",
"legend": "legend"
};
// @param {Object} object.
// @param {String} type, like `Array`, `RegExp`, etc.
function typeOf(object, type){
return Object.prototype.toString.call(object) === "[object " + type + "]";
}
function isString(object){
return typeOf(object, "String");
}
function isBoolean(object){
return typeOf(object, "Boolean");
}
function isArray(object){
return typeOf(object, "Array");
}
function isNumber(object){
return !isNaN(object) && typeOf(object, "Number");
}
function isRegExp(object){
return typeOf(object, "RegExp");
}
function isFunction(object){
return typeOf(object, "Function");
}
function isObject(object){
return null!==object && typeOf(object, "Object");
}
function trim(string){
return String(string).replace(/^\s+/, "").replace(/\s+$/, "");
}
// @param {Object} object.
// @return {Number} return number if object can convert to number,
// else return NaN.
function toNumber(object){
if(isNumber(object)){return object;}
object = trim(object);
Iif("" === object){return NaN;}
return Number(object);
}
// @param {Object} rules
// @param {Function} handler
function eachRules(rules, handler){
for(var ruleName in rules){
Eif(rules.hasOwnProperty(ruleName)){
handler.call(rules, ruleName, rules[ruleName]);
}
}
}
function eachValues(handler, values /* ,... */){
var certified = true;
var args = Array.prototype.slice.call(arguments, 0).slice(1);
if(isArray(values)){
for(var i=0,l=values.length; i<l; i++){
args[0] = values[i];
certified = certified && handler.apply(null, args);
}
return certified;
}
return handler.apply(null, args);
}
function merge(/* ... */){
var result = {};
for(var i=0,object,l=arguments.length; i<l; i++){
object = arguments[i];
Iif(!isObject(object)){continue;}
for(var key in object){
Eif(object.hasOwnProperty(key)){
result[key] = object[key]
}
}
}
return result;
}
function startsWith(string, prefix){
return isString(string) && string.indexOf(prefix) === 0;
}
function endsWith(string, suffix) {
return isString(string) &&
string.indexOf(suffix, string.length - suffix.length) !== -1;
}
// 通常情况下的 required 校验。
// @param {Boolean,Undefined} required, is rule required?
// @param {String,Object} values, validation data.
// @return {Boolean,Undefined}
// if !values and required, return false;
// if !values and not-required, return true;
// if values, validate passed, and continue next, return undefined.
function verifyRequired(required, values){
if(isArray(values)){
if(!verifyMinLimit(1, values)){
return !isBoolean(required) || !required;
}
}else{
if("undefined"===typeof values || null===values || ""===values){
return !isBoolean(required) || !required;
}
}
//!return undefined;
}
function verifyIsNumber(value, validity){
var certified = /^[+-]?\d+(?:[eE][+-]?\d+)?$/.test(value) ||
/^[+-]?(?:\d+)?\.\d+(?:[eE][+-]?\d+)?$/.test(value);
validity.typeMismatch = !certified;
return certified;
}
function verifyMin(value, min, validity){
var certified;
value = toNumber(value);
min = toNumber(min);
if(!isNumber(min)){
certified = true;
} else Iif(!isNumber(value)){
certified = false;
} else {
certified = value >= min;
}
validity.rangeUnderflow = !certified;
return certified;
//return !isNumber(min) || isNumber(value) && Number(value) >= Number(min);
}
function verifyMax(value, max, validity){
var certified;
value = toNumber(value);
max = toNumber(max);
Eif(!isNumber(max)){
certified = true;
} else if(!isNumber(value)){
certified = false;
} else {
certified = value <= max;
}
// XXX: Non-Effect.
validity.rangeOverflow = !certified;
return certified;
//return !isNumber(max) || isNumber(value) && Number(value) <= Number(max);
}
function verifyMinLimit(minlimit, values, validity){
var certified;
var length = 0;
minlimit = toNumber(minlimit);
if(!isNumber(minlimit)){return true;}
if(!isArray(values)){
values = [ values ];
}
if(values.length < minlimit){
certified = false;
} else {
for(var i=0,l=values.length; i<l; i++){
if("undefined"!==typeof values[i] && null!==values[i] && ""!==values[i]){
length++;
}
}
}
certified = length >= minlimit;
if (validity) {
// XXX: tooShort? no. rangeUnderflow? no. is tooFew.
validity.customError = !certified;
}
return certified;
}
function verifyMaxLimit(maxlimit, values, validity){
maxlimit = toNumber(maxlimit);
if(!isNumber(maxlimit)){return true;}
if(!isArray(values)){
values = [ values ];
}
var length = 0;
for(var i=0,l=values.length; i<l; i++){
if("undefined"!==typeof values[i] && null!==values[i] && ""!==values[i]){
length++;
}
}
var certified = length <= maxlimit;
Eif (validity) {
// XXX: tooLong? no. rangeOverflow? no. is tooMuch.
validity.customError = !certified;
}
return certified;
}
function verifyMinLengthList(minlength, values, validity){
minlength = toNumber(minlength);
if(!isNumber(minlength)){return true;}
var certified = true;
for(var i=0,l=values.length; i<l; i++){
certified = certified && verifyMinLength(minlength, values[i], validity);
}
return certified;
}
function verifyMaxLengthList(maxlength, values, validity){
maxlength = toNumber(maxlength);
if(!isNumber(maxlength)){return true;}
var certified = true;
for(var i=0,l=values.length; i<l; i++){
certified = certified && verifyMaxLength(maxlength, values[i], validity);
}
return certified;
}
function verifyMinLength(minlength, value, validity){
minlength = toNumber(minlength);
var certified = !isNumber(minlength) ||
(isString(value) && value.length >= minlength);
validity.tooShort = !certified;
return certified;
}
function verifyMaxLength(maxlength, value, validity){
maxlength = toNumber(maxlength);
var certified = !isNumber(maxlength) ||
(isString(value) && value.length <= maxlength);
validity.tooLong = !certified;
return certified;
}
var RE_MONTH = /^\d{4,}\-\d{2}$/;
function verifyIsMonth(value, validity){
var certified = RE_MONTH.test(value) && moment(value).isValid();
validity.typeMismatch = !certified;
return certified;
}
function verifyMinMonth(value, min, instance_context, validity){
if(!min){return true;}
Iif(!verifyIsMonth(min, validity)){
instance_context._evt.emit("error",
new TypeError('[type=month][min='+min+'] is invalid month.'));
return true;
}
var certified = moment(value) >= moment(min);
validity.rangeUnderflow = !certified;
return certified;
}
function verifyMaxMonth(value, max, instance_context, validity){
if(!max){return true;}
Iif(!verifyIsMonth(max, validity)){
instance_context._evt.emit("error",
new TypeError('[type=month][max='+max+'] is invalid month.'));
return true;
}
var certified = moment(value) <= moment(max);
validity.rangeOverflow = !certified;
return certified;
}
// TODO: #4, remove moment.
var RE_TIME = /^\d{2}:\d{2}:\d{2}$/;
function verifyIsTime(value, validity){
var certified = RE_TIME.test(value) && moment("2014-01-01 " + value).isValid();
validity.typeMismatch = !certified;
return certified;
}
function verifyMinTime(value, min, instance_context, validity){
if(!min){return true;}
Iif(!verifyIsTime(min, validity)){
instance_context._evt.emit("error",
new TypeError('[type=time][min='+min+'] is invalid time.'));
return true;
}
var date = '2014-01-01T';
var certified = moment(date+value) >= moment(date+min);
validity.rangeUnderflow = !certified;
return certified;
}
function verifyMaxTime(value, max, instance_context, validity){
if(!max){return true;}
Iif(!verifyIsTime(max, validity)){
instance_context._evt.emit("error",
new TypeError('[type=time][max='+max+'] is invalid time.'));
return true;
}
var date = '2014-01-01T';
var certified = moment(date+value) <= moment(date+max);
validity.rangeOverflow = !certified;
return certified;
}
var RE_DATE = /^\d{4,}\-\d{2}\-\d{2}$/;
function verifyIsDate(value, validity){
var certified = RE_DATE.test(value) && moment(value).isValid();
if (validity){
validity.typeMismatch = !certified;
}
return certified;
}
function verifyMinDate(value, min, instance_context, validity){
if(!min){return true;}
// Do't change validity on verify `min` rule.
if(!verifyIsDate(min /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=date][min='+min+'] is invalid date.'));
return true;
}
var certified = moment(value) >= moment(min);
validity.rangeUnderflow = !certified;
return certified;
}
function verifyMaxDate(value, max, instance_context, validity){
if(!max){return true;}
// Do't change validity on verify `max` rule.
if(!verifyIsDate(max/* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=date][max='+max+'] is invalid date.'));
return true;
}
var certified = moment(value) <= moment(max);
validity.rangeOverflow = !certified;
return certified;
}
// http://www.w3.org/TR/html-markup/input.datetime.html
var RE_DATETIME = /^\d{4,}\-\d\d\-\d\dT\d\d:\d\d:\d\d(?:[+-]\d\d:\d\d)?Z?$/;
function verifyIsDateTime(value, validity){
var certified = RE_DATETIME.test(value) && moment(value).isValid();
if (validity) {
validity.typeMismatch = !certified;
}
return certified;
}
function verifyMinDateTime(value, min, instance_context, validity){
if(!min){return true;}
// Do't change validity on verify `min` rule.
// TODO: test cases.
Iif(!verifyIsDateTime(min /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=datetime][min='+min+'] is invalid datetime.'));
return true;
}
var certified = moment(value) >= moment(min);
validity.rangeUnderflow = !certified;
return certified;
}
function verifyMaxDateTime(value, max, instance_context, validity){
if(!max){return true;}
// Do't change validity on verify `max` rule.
// TODO: test cases.
Iif(!verifyIsDateTime(max /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=datetime][max='+max+'] is invalid datetime.'));
return true;
}
var certified = moment(value) <= moment(max);
validity.rangeOverflow = !certified;
return certified;
}
// [input=type=datetime-local](http://www.w3.org/TR/html-markup/input.datetime-local.html)
var RE_DATETIME_LOCAL = /^\d{4,}\-\d\d\-\d\dT\d\d:\d\d:\d\d(?:[+-]\d\d:\d\d)?Z?$/;
function verifyIsDateTimeLocal(value, validity){
var certified = RE_DATETIME_LOCAL.test(value) && moment(value).isValid();
if (validity) {
validity.typeMismatch = !certified;
}
return certified;
}
function verifyMinDateTimeLocal(value, min, instance_context, validity){
if(!min){return true;}
// Do't change validity on verify `min` rule.
// TODO: test cases.
Iif(!verifyIsDateTimeLocal(min /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=datetime-local][min='+min+'] is invalid datetime.'));
return true;
}
var certified = moment(value) >= moment(min);
validity.rangeUnderflow = !certified;
return certified;
}
function verifyMaxDateTimeLocal(value, max, instance_context, validity){
if(!max){return true;}
// Do't change validity on verify `max` rule.
// TODO: test cases.
Iif(!verifyIsDateTimeLocal(max /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=datetime-local][max='+max+'] is invalid datetime.'));
return true;
}
var certified = moment(value) <= moment(max);
validity.rangeOverflow = !certified;
return certified;
}
var RE_WEEK = /^\d{4,}-W\d{2}$/;
function verifyIsWeek(value, validity){
var certified = RE_WEEK.test(value) && moment(value).isValid();
if (validity) {
validity.typeMismatch = !certified;
}
return certified;
}
function verifyMinWeek(value, min, instance_context, validity){
if(!min){return true;}
// Do't change validity on verify `min` rule.
// TODO: test cases.
Iif(!verifyIsWeek(min /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=week][min='+min+'] is invalid week.'));
return true;
}
var certified = moment(value) >= moment(min);
// XXX: Non-Effect.
validity.rangeUnderflow = !certified;
return certified;
}
function verifyMaxWeek(value, max, instance_context, validity){
if(!max){return true;}
// Do't change validity on verify `max` rule.
// TODO: test cases.
Iif(!verifyIsWeek(max /* , validity */)){
instance_context._evt.emit("error",
new TypeError('[type=week][max='+max+'] is invalid week.'));
return true;
}
var certified = moment(value) <= moment(max);
// XXX: Non-Effect.
validity.rangeOverflow = !certified;
return certified;
}
// [RFC1738](http://www.faqs.org/rfcs/rfc1738.html)
var RE_URL = /^https?:\/\/(?:[\w.-]*(?::[^@]+)?@)?(?:[\w-]+\.){1,3}[\w]+(?::\d+)?(?:\/.*)?$/;
function verifyIsUrl(value, validity){
var certified = RE_URL.test(value);
validity.typeMismatch = !certified;
return certified;
}
var RE_EMAIL = /^\w+(?:[\._+\-]\w+)*@[\w_-]+(?:\.[\w_-]+)+$/;
function verifyIsEmail(value, validity){
var certified = RE_EMAIL.test(value);
validity.typeMismatch = !certified;
return certified;
}
var RE_MOBILE = /^(?:13[0-9]|14[57]|15[0-35-9]|17[0678]|18[0-9])\d{8}$/;
function verifyIsMobile(value, validity){
var certified = RE_MOBILE.test(value);
validity.typeMismatch = !certified;
return certified;
}
var RE_TEL = /^(?:\(\+\d{2}\))?\d{3,4}\-\d{7,8}$/;
function verifyIsTel(value, validity){
var certified = RE_TEL.test(value);
validity.typeMismatch = !certified;
return certified;
}
var RE_COLOR = /^#[0-9a-fA-F]{6}$/;
function verifyIsColor(value, validity){
var certified = RE_COLOR.test(value);
validity.typeMismatch = !certified;
return certified;
}
function verifyPattern(pattern, value, instance_context, validity){
Eif(!isRegExp(pattern)){
if(!isString(pattern)){return true;}
try{
pattern = new RegExp(pattern);
}catch(ex){
instance_context._evt.emit("error", ex);
return true;
}
}
var certified = pattern.test(value);
validity.patternMismatch = !certified;
return certified;
}
function verifyPatternList(pattern, values, instance_context, validity){
var certified = true;
for(var i=0,l=values.length; i<l; i++){
certified = certified && verifyPattern(pattern, values[i], instance_context, validity);
}
return certified;
}
function verifyFunction(ruleFunction, value, datas, certifiedCallback){
if(!isFunction(ruleFunction)){return true;}
var build_in_rule = merge(BUILD_IN_RULE, {
data: function(key){
return datas[key];
}
});
var result = ruleFunction.call(build_in_rule, value, certifiedCallback);
if("undefined" !== typeof result){
return result;
}
}
var MIME_TYPE = {
"txt": "text/plain",
"htm": "text/html",
"html": "text/html",
"js": "application/javascript",
"css": "text/css",
"csv": "text/csv",
"xml": "text/xml",
"jpg": "image/jpeg",
"jpeg": "image/jpeg",
"png": "image/png",
"gif": "image/gif",
"pdf": "application/pdf",
"doc": "application/msword",
"docx": "application/msword",
"zip": "application/zip",
"mp3": "audio/mpeg",
"ogg": "audio/ogg"
};
function typeByName(fileName){
var ext = fileName.split(".").slice(-1);
Eif(MIME_TYPE.hasOwnProperty(ext)){
return MIME_TYPE[ext];
}
}
// @param {Array} accept.
// @param {File} file.
// @return {Boolean}
function verifyFileType(file, accept, validity){
if(!isArray(accept) || !file || !file.name){return true;}
for(var i=0,l=accept.length; i<l; i++){
if(!file.type){
file.type = typeByName(file.name);
}
if(accept[i] === file.type){
return true;
}else if(endsWith(accept[i], "/*") &&
startsWith(file.type, accept[i].replace(/\*$/, "")) ){
return true;
}
}
validity.typeMismatch = true;
return false;
}
function verifyMinFileSize(file, min, validity){
if(!isNumber(min) || !isNumber(file.size)){return true;}
var certified = file.size >= min;
validity.tooShort = !certified;
return certified;
}
function verifyMaxFileSize(file, max, validity){
if(!isNumber(max) || !isNumber(file.size)){return true;}
var certified = file.size <= max;
validity.tooLong = !certified;
return certified;
}
var ValidityState = {
customError: "customError",
patternMismatch: "patternMismatch",
rangeOverflow: "rangeOverflow",
rangeUnderflow: "rangeUnderflow",
stepMismatch: "stepMismatch",
tooLong: "tooLong",
tooShort: "tooShort",
typeMismatch: "typeMismatch",
valueMissing: "valueMissing",
badInput: "badInput",
valid: "valid"
};
function verify(ruleName, rule, values, datas, instance_context){
var certified = true;
var validity = {
customError: false,
patternMismatch: false,
rangeOverflow: false,
rangeUnderflow: false,
stepMismatch: false,
tooLong: false,
tooShort: false,
typeMismatch: false,
valueMissing: false,
badInput: false,
valid: true,
validationMessage: ValidityState.valid
};
var resultRequired = verifyRequired(rule.required, values);
// fast return if required rule not match.
if("undefined" !== typeof resultRequired){
if (resultRequired === false) {
validity.valueMissing = true;
validity.valid = false;
validity.validationMessage = ValidityState.valueMissing;
}
instance_context._evt.emit(resultRequired ? "valid":"invalid", ruleName, values, validity);
return resultRequired;
}
if(isArray(values)){
certified = certified &&
verifyMinLengthList(rule.minlength, values, validity) &&
verifyMaxLengthList(rule.maxlength, values, validity) &&
verifyPatternList(rule.pattern, values, instance_context, validity);
}else{
certified = certified &&
verifyMinLength(rule.minlength, values, validity) &&
verifyMaxLength(rule.maxlength, values, validity) &&
verifyPattern(rule.pattern, values, instance_context, validity);
}
// FIXME: validity.
certified = certified &&
verifyMinLimit(rule.minlimit, values, validity) &&
verifyMaxLimit(rule.maxlimit, values, validity);
// rule: type, min, max.
switch(rule.type){
case RULE_TYPES.number:
case RULE_TYPES.range:
certified = certified &&
eachValues(verifyIsNumber, values, validity) &&
eachValues(verifyMin, values, rule.min, validity) &&
eachValues(verifyMax, values, rule.max, validity);
break;
case RULE_TYPES.date:
certified = certified &&
eachValues(verifyIsDate, values, validity) &&
eachValues(verifyMinDate, values, rule.min, instance_context, validity) &&
eachValues(verifyMaxDate, values, rule.max, instance_context, validity);
break;
case RULE_TYPES.datetime:
certified = certified &&
eachValues(verifyIsDateTime, values, validity) &&
eachValues(verifyMinDateTime, values, rule.min, instance_context, validity) &&
eachValues(verifyMaxDateTime, values, rule.max, instance_context, validity);
break;
case RULE_TYPES["datetime-local"]:
certified = certified &&
eachValues(verifyIsDateTimeLocal, values, validity) &&
eachValues(verifyMinDateTimeLocal, values, rule.min, instance_context, validity) &&
eachValues(verifyMaxDateTimeLocal, values, rule.max, instance_context, validity);
break;
case RULE_TYPES.time:
certified = certified &&
eachValues(verifyIsTime, values, validity) &&
eachValues(verifyMinTime, values, rule.min, instance_context, validity) &&
eachValues(verifyMaxTime, values, rule.max, instance_context, validity);
break;
case RULE_TYPES.week:
certified = certified &&
eachValues(verifyIsWeek, values, validity) &&
eachValues(verifyMinWeek, values, rule.min, instance_context, validity) &&
eachValues(verifyMaxWeek, values, rule.max, instance_context, validity);
break;
case RULE_TYPES.month:
certified = certified &&
eachValues(verifyIsMonth, values, validity) &&
eachValues(verifyMinMonth, values, rule.min, instance_context, validity) &&
eachValues(verifyMaxMonth, values, rule.max, instance_context, validity);
break;
case RULE_TYPES.url:
certified = certified && eachValues(verifyIsUrl, values, validity);
break;
case RULE_TYPES.email:
certified = certified && eachValues(verifyIsEmail, values, validity);
break;
case RULE_TYPES.tel:
certified = certified && (
eachValues(verifyIsTel, values, validity) ||
eachValues(verifyIsMobile, values, validity)
);
break;
case RULE_TYPES.color:
certified = certified && eachValues(verifyIsColor, values, validity);
break;
case RULE_TYPES.file:
certified = certified &&
eachValues(verifyFileType, values, rule.accept, validity) &&
eachValues(verifyMinFileSize, values, rule.min, validity) &&
eachValues(verifyMaxFileSize, values, rule.max, validity);
break;
//case RULE_TYPES.select-one:
//case RULE_TYPES.radio:
//case RULE_TYPES.text:
//case RULE_TYPES.search:
//case RULE_TYPES.textarea:
//case RULE_TYPES.checkbox:
//case RULE_TYPES["select-multiple"]:
//case RULE_TYPES.password:
//default:
//break;
}
//! NOTE: Do't each loop values by verifyFunction,
// each loop values in user custom function if need.
var result = verifyFunction(rule.custom, values, datas, function(certified){
if (!certified) {
validity.customError = true;
validity.valid = false;
validity.validationMessage = ValidityState.customError;
}
instance_context._evt.emit(certified ? "valid":"invalid", ruleName, values, validity);
if(--instance_context._pending === 0){
instance_context._evt.emit("complete", instance_context._certified && certified);
instance_context._certified = true;
}
});
instance_context._certified = certified;
if(typeof result !== "undefined"){
if (!result) {
validity.customError = true;
validity.valid = false;
}
for(var key in validity){
if (validity.hasOwnProperty(key) && key !== "valid" && isBoolean(validity[key]) && validity[key]) {
validity.validationMessage = ValidityState[key];
validity.valid = false;
}
}
certified = certified && result;
validity.valid = certified;
instance_context._evt.emit(certified ? "valid":"invalid", ruleName, values, validity);
return certified;
}else{
instance_context._pending++;
}
}
var Validator = function(rules){
this._rules = rules;
this._evt = new events();
this._pending = 0;
this._certified = true;
};
Validator.prototype.validate = function(data){
var certified = true;
var ME = this;
eachRules(this._rules, function(ruleName, rule){
var values = data[ruleName];
var result = verify(ruleName, rule, values, data, ME);
certified = certified && result;
});
if(this._pending === 0){
ME._evt.emit("complete", certified);
ME._certified = true;
}
return this;
};
Validator.prototype.on = function(eventName, handler){
this._evt.on(eventName, handler);
return this;
};
Validator.prototype.off = function(eventName, handler){
Iif(isFunction(handler)){
this._evt.removeListener(eventName, handler);
}else{
this._evt.removeAllListeners(eventName);
}
return this;
};
Validator.rule = function(ruleName, validation){
Iif(!isString(ruleName)){return false;}
Iif(!isFunction(validation)){return BUILD_IN_RULE[ruleName];}
BUILD_IN_RULE[ruleName] = validation;
return true;
};
module.exports = Validator;
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