winter/modules/system/assets/js/framework.js
Marc Jauvin 04014b628f
Trigger a new ajaxRedirected event and handle it in the loading indicator (#70)
Fix issue with premature hiding of loading indicators during a redirect response via AJAX.

Fixes: https://github.com/octobercms/october/issues/5555

Tested by 9fb25e233e

Refs:
- https://github.com/octobercms/october/issues/5055 (original issue attempted to solve with previous code)
- https://github.com/octobercms/october/pull/5321 (solution to octobercms/october#5055)
- https://github.com/octobercms/october/issues/2780 (original issue regarding the hash change redirect not closing the loading indicator)
- 99a08616bb (October's solution to the issue)
2021-04-08 20:55:09 -06:00

986 lines
36 KiB
JavaScript

/* ========================================================================
* Winter CMS: front-end JavaScript framework
* http://wintercms.com
* ========================================================================
* Copyright 2016-2020 Alexey Bobkov, Samuel Georges
* ======================================================================== */
if (window.jQuery === undefined) {
throw new Error('The jQuery library is not loaded. The Winter CMS framework cannot be initialized.');
}
if (window.jQuery.request !== undefined) {
throw new Error('The Winter CMS framework is already loaded.');
}
+function ($) { "use strict";
var Request = function (element, handler, options) {
var $el = this.$el = $(element);
this.options = options || {};
/*
* Validate handler name
*/
if (handler === undefined) {
throw new Error('The request handler name is not specified.')
}
if (!handler.match(/^(?:\w+\:{2})?on*/)) {
throw new Error('Invalid handler name. The correct handler name format is: "onEvent".')
}
/*
* Prepare the options
*/
var $form = options.form ? $(options.form) : $el.closest('form'),
$triggerEl = !!$form.length ? $form : $el,
context = { handler: handler, options: options }
/*
* Validate the form client-side
*/
if ((options.browserValidate !== undefined) && typeof document.createElement('input').reportValidity == 'function' && $form && $form[0] && !$form[0].checkValidity()) {
$form[0].reportValidity();
return false;
}
/*
* Execute the request
*/
$el.trigger('ajaxSetup', [context])
var _event = jQuery.Event('oc.beforeRequest')
$triggerEl.trigger(_event, context)
if (_event.isDefaultPrevented()) return
var loading = options.loading !== undefined ? options.loading : null,
url = options.url !== undefined ? options.url : window.location.href,
isRedirect = options.redirect !== undefined && options.redirect.length,
useFlash = options.flash !== undefined,
useFiles = options.files !== undefined
if (useFiles && typeof FormData === 'undefined') {
console.warn('This browser does not support file uploads via FormData')
useFiles = false
}
if ($.type(loading) == 'string') {
loading = $(loading)
}
/*
* Request headers
*/
var requestHeaders = {
'X-WINTER-REQUEST-HANDLER': handler,
'X-WINTER-REQUEST-PARTIALS': this.extractPartials(options.update)
}
if (useFlash) {
requestHeaders['X-WINTER-REQUEST-FLASH'] = 1
}
var csrfToken = getXSRFToken()
if (csrfToken) {
requestHeaders['X-XSRF-TOKEN'] = csrfToken
}
/*
* Request data
*/
var requestData,
inputName,
data = {}
$.each($el.parents('[data-request-data]').toArray().reverse(), function extendRequest() {
$.extend(data, paramToObj('data-request-data', $(this).data('request-data')))
})
if ($el.is(':input') && !$form.length) {
inputName = $el.attr('name')
if (inputName !== undefined && options.data[inputName] === undefined) {
options.data[inputName] = $el.val()
}
}
if (options.data !== undefined && !$.isEmptyObject(options.data)) {
$.extend(data, options.data)
}
if (useFiles) {
requestData = new FormData($form.length ? $form.get(0) : undefined)
if ($el.is(':file') && inputName) {
$.each($el.prop('files'), function() {
requestData.append(inputName, this)
})
delete data[inputName]
}
$.each(data, function(key) {
if (typeof Blob !== "undefined" && this instanceof Blob && this.filename) {
requestData.append(key, this, this.filename)
} else {
requestData.append(key, this)
}
})
}
else {
requestData = [$form.serialize(), $.param(data)].filter(Boolean).join('&')
}
/*
* Request options
*/
var requestOptions = {
url: url,
crossDomain: false,
global: options.ajaxGlobal,
context: context,
headers: requestHeaders,
success: function(data, textStatus, jqXHR) {
/*
* Halt here if beforeUpdate() or data-request-before-update returns false
*/
if (this.options.beforeUpdate.apply(this, [data, textStatus, jqXHR]) === false) return
if (options.evalBeforeUpdate && eval('(function($el, context, data, textStatus, jqXHR) {'+options.evalBeforeUpdate+'}.call($el.get(0), $el, context, data, textStatus, jqXHR))') === false) return
/*
* Trigger 'ajaxBeforeUpdate' on the form, halt if event.preventDefault() is called
*/
var _event = jQuery.Event('ajaxBeforeUpdate')
$triggerEl.trigger(_event, [context, data, textStatus, jqXHR])
if (_event.isDefaultPrevented()) return
if (useFlash && data['X_WINTER_FLASH_MESSAGES']) {
$.each(data['X_WINTER_FLASH_MESSAGES'], function(type, message) {
requestOptions.handleFlashMessage(message, type)
})
}
/*
* Proceed with the update process
*/
var updatePromise = requestOptions.handleUpdateResponse(data, textStatus, jqXHR)
updatePromise.done(function() {
$triggerEl.trigger('ajaxSuccess', [context, data, textStatus, jqXHR])
options.evalSuccess && eval('(function($el, context, data, textStatus, jqXHR) {'+options.evalSuccess+'}.call($el.get(0), $el, context, data, textStatus, jqXHR))')
})
return updatePromise
},
error: function(jqXHR, textStatus, errorThrown) {
var errorMsg,
updatePromise = $.Deferred()
if ((window.ocUnloading !== undefined && window.ocUnloading) || errorThrown == 'abort')
return
/*
* Disable redirects
*/
isRedirect = false
options.redirect = null
/*
* Error 406 is a "smart error" that returns response object that is
* processed in the same fashion as a successful response.
*/
if (jqXHR.status == 406 && jqXHR.responseJSON) {
errorMsg = jqXHR.responseJSON['X_WINTER_ERROR_MESSAGE']
updatePromise = requestOptions.handleUpdateResponse(jqXHR.responseJSON, textStatus, jqXHR)
}
/*
* Standard error with standard response text
*/
else {
errorMsg = jqXHR.responseText ? jqXHR.responseText : jqXHR.statusText
updatePromise.resolve()
}
updatePromise.done(function() {
$el.data('error-message', errorMsg)
/*
* Trigger 'ajaxError' on the form, halt if event.preventDefault() is called
*/
var _event = jQuery.Event('ajaxError')
$triggerEl.trigger(_event, [context, errorMsg, textStatus, jqXHR])
if (_event.isDefaultPrevented()) return
/*
* Halt here if the data-request-error attribute returns false
*/
if (options.evalError && eval('(function($el, context, errorMsg, textStatus, jqXHR) {'+options.evalError+'}.call($el.get(0), $el, context, errorMsg, textStatus, jqXHR))') === false)
return
requestOptions.handleErrorMessage(errorMsg)
})
return updatePromise
},
complete: function(data, textStatus, jqXHR) {
$triggerEl.trigger('ajaxComplete', [context, data, textStatus, jqXHR])
options.evalComplete && eval('(function($el, context, data, textStatus, jqXHR) {'+options.evalComplete+'}.call($el.get(0), $el, context, data, textStatus, jqXHR))')
},
/*
* Custom function, requests confirmation from the user
*/
handleConfirmMessage: function(message) {
var _event = jQuery.Event('ajaxConfirmMessage')
_event.promise = $.Deferred()
if ($(window).triggerHandler(_event, [message]) !== undefined) {
_event.promise.done(function() {
options.confirm = null
new Request(element, handler, options)
})
return false
}
if (_event.isDefaultPrevented()) return
if (message) return confirm(message)
},
/*
* Custom function, display an error message to the user
*/
handleErrorMessage: function(message) {
var _event = jQuery.Event('ajaxErrorMessage')
$(window).trigger(_event, [message])
if (_event.isDefaultPrevented()) return
if (message) alert(message)
},
/*
* Custom function, focus fields with errors
*/
handleValidationMessage: function(message, fields) {
$triggerEl.trigger('ajaxValidation', [context, message, fields])
var isFirstInvalidField = true
$.each(fields, function focusErrorField(fieldName, fieldMessages) {
fieldName = fieldName.replace(/\.(\w+)/g, '[$1]')
var fieldElement = $form.find('[name="'+fieldName+'"], [name="'+fieldName+'[]"], [name$="['+fieldName+']"], [name$="['+fieldName+'][]"]').filter(':enabled').first()
if (fieldElement.length > 0) {
var _event = jQuery.Event('ajaxInvalidField')
$(window).trigger(_event, [fieldElement.get(0), fieldName, fieldMessages, isFirstInvalidField])
if (isFirstInvalidField) {
if (!_event.isDefaultPrevented()) fieldElement.focus()
isFirstInvalidField = false
}
}
})
},
/*
* Custom function, display a flash message to the user
*/
handleFlashMessage: function(message, type) {},
/*
* Custom function, redirect the browser to another location
*/
handleRedirectResponse: function(url) {
// Indicate that the AJAX request is finished if we're still on the current page
// so that the loading indicator for redirects that just change the hash value of
// the URL instead of leaving the page will properly stop.
// @see https://github.com/octobercms/october/issues/2780
$(window).one('popstate', function () {
$el.trigger('ajaxRedirected')
})
window.location.assign(url)
},
/*
* Custom function, handle any application specific response values
* Using a promisary object here in case injected assets need time to load
*/
handleUpdateResponse: function(data, textStatus, jqXHR) {
/*
* Update partials and finish request
*/
var updatePromise = $.Deferred().done(function() {
for (var partial in data) {
/*
* If a partial has been supplied on the client side that matches the server supplied key, look up
* it's selector and use that. If not, we assume it is an explicit selector reference.
*/
var selector = (options.update[partial]) ? options.update[partial] : partial
if ($.type(selector) == 'string' && selector.charAt(0) == '@') {
$(selector.substring(1)).append(data[partial]).trigger('ajaxUpdate', [context, data, textStatus, jqXHR])
}
else if ($.type(selector) == 'string' && selector.charAt(0) == '^') {
$(selector.substring(1)).prepend(data[partial]).trigger('ajaxUpdate', [context, data, textStatus, jqXHR])
}
else {
$(selector).trigger('ajaxBeforeReplace')
$(selector).html(data[partial]).trigger('ajaxUpdate', [context, data, textStatus, jqXHR])
}
}
/*
* Wait for .html() method to finish rendering from partial updates
*/
setTimeout(function() {
$(window)
.trigger('ajaxUpdateComplete', [context, data, textStatus, jqXHR])
.trigger('resize')
}, 0)
})
/*
* Handle redirect
*/
if (data['X_WINTER_REDIRECT']) {
options.redirect = data['X_WINTER_REDIRECT']
isRedirect = true
}
if (isRedirect) {
requestOptions.handleRedirectResponse(options.redirect)
}
/*
* Handle validation
*/
if (data['X_WINTER_ERROR_FIELDS']) {
requestOptions.handleValidationMessage(data['X_WINTER_ERROR_MESSAGE'], data['X_WINTER_ERROR_FIELDS'])
}
/*
* Handle asset injection
*/
if (data['X_WINTER_ASSETS']) {
assetManager.load(data['X_WINTER_ASSETS'], $.proxy(updatePromise.resolve, updatePromise))
}
else {
updatePromise.resolve()
}
return updatePromise
}
}
if (useFiles) {
requestOptions.processData = requestOptions.contentType = false
}
/*
* Allow default business logic to be called from user functions
*/
context.success = requestOptions.success
context.error = requestOptions.error
context.complete = requestOptions.complete
requestOptions = $.extend(requestOptions, options)
requestOptions.data = requestData
/*
* Initiate request
*/
if (options.confirm && !requestOptions.handleConfirmMessage(options.confirm)) {
return
}
if (loading) loading.show()
$(window).trigger('ajaxBeforeSend', [context])
$el.trigger('ajaxPromise', [context])
return $.ajax(requestOptions)
.fail(function(jqXHR, textStatus, errorThrown) {
if (!isRedirect) {
$el.trigger('ajaxFail', [context, textStatus, jqXHR])
}
if (loading) loading.hide()
})
.done(function(data, textStatus, jqXHR) {
if (!isRedirect) {
$el.trigger('ajaxDone', [context, data, textStatus, jqXHR])
}
if (loading) loading.hide()
})
.always(function(dataOrXhr, textStatus, xhrOrError) {
$el.trigger('ajaxAlways', [context, dataOrXhr, textStatus, xhrOrError])
})
}
Request.DEFAULTS = {
update: {},
type : 'POST',
beforeUpdate: function(data, textStatus, jqXHR) {},
evalBeforeUpdate: null,
evalSuccess: null,
evalError: null,
evalComplete: null,
ajaxGlobal: false
}
/*
* Internal function, build a string of partials and their update elements.
*/
Request.prototype.extractPartials = function(update) {
var result = []
for (var partial in update)
result.push(partial)
return result.join('&')
}
// REQUEST PLUGIN DEFINITION
// ============================
var old = $.fn.request
$.fn.request = function(handler, option) {
var args = arguments
var $this = $(this).first()
var data = {
evalBeforeUpdate: $this.data('request-before-update'),
evalSuccess: $this.data('request-success'),
evalError: $this.data('request-error'),
evalComplete: $this.data('request-complete'),
ajaxGlobal: $this.data('request-ajax-global'),
confirm: $this.data('request-confirm'),
redirect: $this.data('request-redirect'),
loading: $this.data('request-loading'),
flash: $this.data('request-flash'),
files: $this.data('request-files'),
browserValidate: $this.data('browser-validate'),
form: $this.data('request-form'),
url: $this.data('request-url'),
update: paramToObj('data-request-update', $this.data('request-update')),
data: paramToObj('data-request-data', $this.data('request-data'))
}
if (!handler) handler = $this.data('request')
var options = $.extend(true, {}, Request.DEFAULTS, data, typeof option == 'object' && option)
return new Request($this, handler, options)
}
$.fn.request.Constructor = Request
$.request = function(handler, option) {
return $(document).request(handler, option)
}
// REQUEST NO CONFLICT
// =================
$.fn.request.noConflict = function() {
$.fn.request = old
return this
}
// REQUEST DATA-API
// ==============
function paramToObj(name, value) {
if (value === undefined) value = ''
if (typeof value == 'object') return value
try {
return ocJSON("{" + value + "}")
}
catch (e) {
throw new Error('Error parsing the '+name+' attribute value. '+e)
}
}
function getXSRFToken() {
var cookieValue = null
if (document.cookie && document.cookie != '') {
var cookies = document.cookie.split(';')
for (var i = 0; i < cookies.length; i++) {
var cookie = jQuery.trim(cookies[i])
if (cookie.substring(0, 11) == ('XSRF-TOKEN' + '=')) {
cookieValue = decodeURIComponent(cookie.substring(11))
break
}
}
}
return cookieValue
}
$(document).on('change', 'select[data-request], input[type=radio][data-request], input[type=checkbox][data-request], input[type=file][data-request]', function documentOnChange() {
$(this).request()
})
$(document).on('click', 'a[data-request], button[data-request], input[type=button][data-request], input[type=submit][data-request]', function documentOnClick(e) {
e.preventDefault()
$(this).request()
if ($(this).is('[type=submit]'))
return false
})
$(document).on('keydown', 'input[type=text][data-request], input[type=submit][data-request], input[type=password][data-request]', function documentOnKeydown(e) {
if (e.key === 'Enter') {
if (this.dataTrackInputTimer !== undefined)
window.clearTimeout(this.dataTrackInputTimer)
$(this).request()
return false
}
})
$(document).on('input', 'input[data-request][data-track-input]', function documentOnKeyup(e) {
var
$el = $(this),
lastValue = $el.data('oc.lastvalue')
if (!$el.is('[type=email],[type=number],[type=password],[type=search],[type=text]'))
return
if (lastValue !== undefined && lastValue == this.value)
return
$el.data('oc.lastvalue', this.value)
if (this.dataTrackInputTimer !== undefined)
window.clearTimeout(this.dataTrackInputTimer)
var interval = $(this).data('track-input')
if (!interval)
interval = 300
var self = this
this.dataTrackInputTimer = window.setTimeout(function() {
if (self.lastDataTrackInputRequest) {
self.lastDataTrackInputRequest.abort();
}
self.lastDataTrackInputRequest = $(self).request();
}, interval)
})
$(document).on('submit', '[data-request]', function documentOnSubmit() {
$(this).request()
return false
})
$(window).on('beforeunload', function documentOnBeforeUnload() {
window.ocUnloading = true
})
/*
* Invent our own event that unifies document.ready with window.ajaxUpdateComplete
*
* $(document).render(function() { })
* $(document).on('render', function() { })
*/
$(document).ready(function triggerRenderOnReady() {
$(document).trigger('render')
})
$(window).on('ajaxUpdateComplete', function triggerRenderOnAjaxUpdateComplete() {
$(document).trigger('render')
})
$.fn.render = function(callback) {
$(document).on('render', callback)
}
}(window.jQuery);
/*
* Winter CMS JSON Parser
*/
+function(window) { "use strict";
function parseKey(str, pos, quote) {
var key = "";
for (var i = pos; i < str.length; i++) {
if (quote && quote === str[i]) {
return key;
} else if (!quote && (str[i] === " " || str[i] === ":")) {
return key;
}
key += str[i];
if (str[i] === "\\" && i + 1 < str.length) {
key += str[i + 1];
i++;
}
}
throw new Error("Broken JSON syntax near " + key);
}
function getBody(str, pos) {
// parse string body
if (str[pos] === "\"" || str[pos] === "'") {
var body = str[pos];
for (var i = pos + 1; i < str.length; i++) {
if (str[i] === "\\") {
body += str[i];
if (i + 1 < str.length) body += str[i + 1];
i++;
} else if (str[i] === str[pos]) {
body += str[pos];
return {
originLength: body.length,
body: body
};
} else body += str[i];
}
throw new Error("Broken JSON string body near " + body);
}
// parse true / false
if (str[pos] === "t") {
if (str.indexOf("true", pos) === pos) {
return {
originLength: "true".length,
body: "true"
};
}
throw new Error("Broken JSON boolean body near " + str.substr(0, pos + 10));
}
if (str[pos] === "f") {
if (str.indexOf("f", pos) === pos) {
return {
originLength: "false".length,
body: "false"
};
}
throw new Error("Broken JSON boolean body near " + str.substr(0, pos + 10));
}
// parse null
if (str[pos] === "n") {
if (str.indexOf("null", pos) === pos) {
return {
originLength: "null".length,
body: "null"
};
}
throw new Error("Broken JSON boolean body near " + str.substr(0, pos + 10));
}
// parse number
if (str[pos] === "-" || str[pos] === "+" || str[pos] === "." || (str[pos] >= "0" && str[pos] <= "9")) {
var body = "";
for (var i = pos; i < str.length; i++) {
if (str[i] === "-" || str[i] === "+" || str[i] === "." || (str[i] >= "0" && str[i] <= "9")) {
body += str[i];
} else {
return {
originLength: body.length,
body: body
};
}
}
throw new Error("Broken JSON number body near " + body);
}
// parse object
if (str[pos] === "{" || str[pos] === "[") {
var stack = [str[pos]];
var body = str[pos];
for (var i = pos + 1; i < str.length; i++) {
body += str[i];
if (str[i] === "\\") {
if (i + 1 < str.length) body += str[i + 1];
i++;
} else if (str[i] === "\"") {
if (stack[stack.length - 1] === "\"") {
stack.pop();
} else if (stack[stack.length - 1] !== "'") {
stack.push(str[i]);
}
} else if (str[i] === "'") {
if (stack[stack.length - 1] === "'") {
stack.pop();
} else if (stack[stack.length - 1] !== "\"") {
stack.push(str[i]);
}
} else if (stack[stack.length - 1] !== "\"" && stack[stack.length - 1] !== "'") {
if (str[i] === "{") {
stack.push("{");
} else if (str[i] === "}") {
if (stack[stack.length - 1] === "{") {
stack.pop();
} else {
throw new Error("Broken JSON " + (str[pos] === "{" ? "object" : "array") + " body near " + body);
}
} else if (str[i] === "[") {
stack.push("[");
} else if (str[i] === "]") {
if (stack[stack.length - 1] === "[") {
stack.pop();
} else {
throw new Error("Broken JSON " + (str[pos] === "{" ? "object" : "array") + " body near " + body);
}
}
}
if (!stack.length) {
return {
originLength: i - pos,
body: body
};
}
}
throw new Error("Broken JSON " + (str[pos] === "{" ? "object" : "array") + " body near " + body);
}
throw new Error("Broken JSON body near " + str.substr((pos - 5 >= 0) ? pos - 5 : 0, 50));
}
function canBeKeyHead(ch) {
if (ch[0] === "\\") return false;
if ((ch[0] >= 'a' && ch[0] <= 'z') || (ch[0] >= 'A' && ch[0] <= 'Z') || ch[0] === '_') return true;
if (ch[0] >= '0' && ch[0] <= '9') return true;
if (ch[0] === '$') return true;
if (ch.charCodeAt(0) > 255) return true;
return false;
}
function isBlankChar(ch) {
return ch === " " || ch === "\n" || ch === "\t";
}
function parse(str) {
str = str.trim();
if (!str.length) throw new Error("Broken JSON object.");
var result = "";
/*
* the mistake ','
*/
while (str && str[0] === ",") {
str = str.substr(1);
}
/*
* string
*/
if (str[0] === "\"" || str[0] === "'") {
if (str[str.length - 1] !== str[0]) {
throw new Error("Invalid string JSON object.");
}
var body = "\"";
for (var i = 1; i < str.length; i++) {
if (str[i] === "\\") {
if (str[i + 1] === "'") {
body += str[i + 1]
} else {
body += str[i];
body += str[i + 1];
}
i++;
} else if (str[i] === str[0]) {
body += "\"";
return body
} else if (str[i] === "\"") {
body += "\\\""
} else body += str[i];
}
throw new Error("Invalid string JSON object.");
}
/*
* boolean
*/
if (str === "true" || str === "false") {
return str;
}
/*
* null
*/
if (str === "null") {
return "null";
}
/*
* number
*/
var num = parseFloat(str);
if (!isNaN(num)) {
return num.toString();
}
/*
* object
*/
if (str[0] === "{") {
var type = "needKey";
var result = "{";
for (var i = 1; i < str.length; i++) {
if (isBlankChar(str[i])) {
continue;
} else if (type === "needKey" && (str[i] === "\"" || str[i] === "'")) {
var key = parseKey(str, i + 1, str[i]);
result += "\"" + key + "\"";
i += key.length;
i += 1;
type = "afterKey";
} else if (type === "needKey" && canBeKeyHead(str[i])) {
var key = parseKey(str, i);
result += "\"";
result += key;
result += "\"";
i += key.length - 1;
type = "afterKey";
} else if (type === "afterKey" && str[i] === ":") {
result += ":";
type = ":";
} else if (type === ":") {
var body = getBody(str, i);
i = i + body.originLength - 1;
result += parse(body.body);
type = "afterBody";
} else if (type === "afterBody" || type === "needKey") {
var last = i;
while (str[last] === "," || isBlankChar(str[last])) {
last++;
}
if (str[last] === "}" && last === str.length - 1) {
while (result[result.length - 1] === ",") {
result = result.substr(0, result.length - 1);
}
result += "}";
return result;
} else if (last !== i && result !== "{") {
result += ",";
type = "needKey";
i = last - 1;
}
}
}
throw new Error("Broken JSON object near " + result);
}
/*
* array
*/
if (str[0] === "[") {
var result = "[";
var type = "needBody";
for (var i = 1; i < str.length; i++) {
if (" " === str[i] || "\n" === str[i] || "\t" === str[i]) {
continue;
} else if (type === "needBody") {
if (str[i] === ",") {
result += "null,";
continue;
}
if (str[i] === "]" && i === str.length - 1) {
if (result[result.length - 1] === ",") result = result.substr(0, result.length - 1);
result += "]";
return result;
}
var body = getBody(str, i);
i = i + body.originLength - 1;
result += parse(body.body);
type = "afterBody";
} else if (type === "afterBody") {
if (str[i] === ",") {
result += ",";
type = "needBody";
// deal with mistake ","
while (str[i + 1] === "," || isBlankChar(str[i + 1])) {
if (str[i + 1] === ",") result += "null,";
i++;
}
} else if (str[i] === "]" && i === str.length - 1) {
result += "]";
return result;
}
}
}
throw new Error("Broken JSON array near " + result);
}
}
// Global function
window.ocJSON = function(json) {
var jsonString = parse(json);
return JSON.parse(jsonString);
};
}(window);
/*
* Winter CMS jQuery HTML Sanitizer
* @see https://gist.github.com/ufologist/5a0da51b2b9ef1b861c30254172ac3c9
*/
+function(window) { "use strict";
function trimAttributes(node) {
$.each(node.attributes, function() {
var attrName = this.name;
var attrValue = this.value;
/*
* remove attributes where the names start with "on" (for example: onload, onerror...)
* remove attributes where the value starts with the "javascript:" pseudo protocol (for example href="javascript:alert(1)")
*/
if (attrName.indexOf('on') == 0 || attrValue.indexOf('javascript:') == 0) {
$(node).removeAttr(attrName);
}
});
}
function sanitize(html) {
/*
* [jQuery.parseHTML(data [, context ] [, keepScripts ])](http://api.jquery.com/jQuery.parseHTML/) added: 1.8
* Parses a string into an array of DOM nodes.
*
* By default, the context is the current document if not specified or given as null or undefined. If the HTML was to be used
* in another document such as an iframe, that frame's document could be used.
*
* As of 3.0 the default behavior is changed.
*
* If the context is not specified or given as null or undefined, a new document is used.
* This can potentially improve security because inline events will not execute when the HTML is parsed. Once the parsed HTML
* is injected into a document it does execute, but this gives tools a chance to traverse the created DOM and remove anything
* deemed unsafe. This improvement does not apply to internal uses of jQuery.parseHTML as they usually pass in the current
* document. Therefore, a statement like $( "#log" ).append( $( htmlString ) ) is still subject to the injection of malicious code.
*
* without context do not execute script
* $.parseHTML('<div><img src=1 onerror=alert(1)></div>');
* $.parseHTML('<div><img src=1 onerror=alert(2)></div>', null);
*
* with context document execute script!
* $.parseHTML('<div><img src=1 onerror=alert(3)></div>', document);
*
* Most jQuery APIs that accept HTML strings will run scripts that are included in the HTML. jQuery.parseHTML does not run scripts
* in the parsed HTML unless keepScripts is explicitly true. However, it is still possible in most environments to execute scripts
* indirectly, for example via the <img onerror> attribute.
*
* will return []
* $.parseHTML('<script>alert(1)<\/script>', null, false);
*
* will return [script DOM element]
* $.parseHTML('<script>alert(1)<\/script>', null, true);
*/
var output = $($.parseHTML('<div>' + html + '</div>', null, false));
output.find('*').each(function() {
trimAttributes(this);
});
return output.html();
}
// Global function
window.ocSanitize = function(html) {
return sanitize(html)
};
}(window);