Add sanitize template option for tooltip/popover plugins.
This commit is contained in:
Johann-S
XhmikosR
parent
bf2515ae68
commit
7bc4d2e0bc
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@ -0,0 +1,127 @@
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v4.3.0): tools/sanitizer.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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* --------------------------------------------------------------------------
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*/
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const uriAttrs = [
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'background',
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'cite',
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'href',
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'itemtype',
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'longdesc',
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'poster',
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'src',
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'xlink:href'
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]
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const ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i
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export const DefaultWhitelist = {
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// Global attributes allowed on any supplied element below.
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'*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
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a: ['target', 'href', 'title', 'rel'],
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area: [],
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b: [],
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br: [],
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col: [],
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code: [],
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div: [],
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em: [],
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hr: [],
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h1: [],
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h2: [],
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h3: [],
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h4: [],
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h5: [],
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h6: [],
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i: [],
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img: ['src', 'alt', 'title', 'width', 'height'],
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li: [],
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ol: [],
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p: [],
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pre: [],
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s: [],
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small: [],
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span: [],
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sub: [],
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sup: [],
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strong: [],
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u: [],
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ul: []
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}
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/**
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* A pattern that recognizes a commonly useful subset of URLs that are safe.
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*
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* Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
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*/
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const SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi
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/**
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* A pattern that matches safe data URLs. Only matches image, video and audio types.
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*
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* Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
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*/
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const DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i
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function allowedAttribute(attr, allowedAttributeList) {
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const attrName = attr.nodeName.toLowerCase()
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if (allowedAttributeList.indexOf(attrName) !== -1) {
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if (uriAttrs.indexOf(attrName) !== -1) {
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return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN))
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}
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return true
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}
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const regExp = allowedAttributeList.filter((attrRegex) => attrRegex instanceof RegExp)
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// Check if a regular expression validates the attribute.
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for (let i = 0, l = regExp.length; i < l; i++) {
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if (attrName.match(regExp[i])) {
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return true
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}
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}
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return false
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}
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export function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
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if (unsafeHtml.length === 0) {
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return unsafeHtml
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}
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if (sanitizeFn && typeof sanitizeFn === 'function') {
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return sanitizeFn(unsafeHtml)
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}
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const domParser = new window.DOMParser()
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const createdDocument = domParser.parseFromString(unsafeHtml, 'text/html')
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const whitelistKeys = Object.keys(whiteList)
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const elements = [].slice.call(createdDocument.body.querySelectorAll('*'))
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for (let i = 0, len = elements.length; i < len; i++) {
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const el = elements[i]
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const elName = el.nodeName.toLowerCase()
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if (whitelistKeys.indexOf(el.nodeName.toLowerCase()) === -1) {
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el.parentNode.removeChild(el)
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continue
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}
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const attributeList = [].slice.call(el.attributes)
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const whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || [])
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attributeList.forEach((attr) => {
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if (!allowedAttribute(attr, whitelistedAttributes)) {
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el.removeAttribute(attr.nodeName)
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}
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})
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}
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return createdDocument.body.innerHTML
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}
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@ -5,6 +5,10 @@
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* --------------------------------------------------------------------------
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*/
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import {
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DefaultWhitelist,
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sanitizeHtml
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} from './tools/sanitizer'
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import $ from 'jquery'
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import Popper from 'popper.js'
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import Util from './util'
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@ -15,13 +19,14 @@ import Util from './util'
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* ------------------------------------------------------------------------
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*/
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const NAME = 'tooltip'
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const VERSION = '4.3.0'
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const DATA_KEY = 'bs.tooltip'
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const EVENT_KEY = `.${DATA_KEY}`
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const JQUERY_NO_CONFLICT = $.fn[NAME]
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const CLASS_PREFIX = 'bs-tooltip'
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const BSCLS_PREFIX_REGEX = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')
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const NAME = 'tooltip'
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const VERSION = '4.3.0'
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const DATA_KEY = 'bs.tooltip'
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const EVENT_KEY = `.${DATA_KEY}`
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const JQUERY_NO_CONFLICT = $.fn[NAME]
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const CLASS_PREFIX = 'bs-tooltip'
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const BSCLS_PREFIX_REGEX = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')
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const DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn']
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const DefaultType = {
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animation : 'boolean',
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@ -35,7 +40,10 @@ const DefaultType = {
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offset : '(number|string|function)',
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container : '(string|element|boolean)',
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fallbackPlacement : '(string|array)',
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boundary : '(string|element)'
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boundary : '(string|element)',
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sanitize : 'boolean',
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sanitizeFn : '(null|function)',
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whiteList : 'object'
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}
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const AttachmentMap = {
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@ -60,7 +68,10 @@ const Default = {
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offset : 0,
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container : false,
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fallbackPlacement : 'flip',
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boundary : 'scrollParent'
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boundary : 'scrollParent',
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sanitize : true,
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sanitizeFn : null,
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whiteList : DefaultWhitelist
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}
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const HoverState = {
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@ -419,18 +430,27 @@ class Tooltip {
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}
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setElementContent($element, content) {
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const html = this.config.html
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if (typeof content === 'object' && (content.nodeType || content.jquery)) {
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// Content is a DOM node or a jQuery
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if (html) {
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if (this.config.html) {
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if (!$(content).parent().is($element)) {
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$element.empty().append(content)
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}
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} else {
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$element.text($(content).text())
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}
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return
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}
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if (this.config.html) {
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if (this.config.sanitize) {
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content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn)
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}
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$element.html(content)
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} else {
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$element[html ? 'html' : 'text'](content)
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$element.text(content)
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}
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}
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@ -636,9 +656,18 @@ class Tooltip {
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}
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_getConfig(config) {
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const dataAttributes = $(this.element).data()
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Object.keys(dataAttributes)
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.forEach((dataAttr) => {
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if (DISALLOWED_ATTRIBUTES.indexOf(dataAttr) !== -1) {
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delete dataAttributes[dataAttr]
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}
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})
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config = {
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...this.constructor.Default,
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...$(this.element).data(),
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...dataAttributes,
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...typeof config === 'object' && config ? config : {}
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}
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@ -663,6 +692,10 @@ class Tooltip {
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this.constructor.DefaultType
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)
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if (config.sanitize) {
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config.template = sanitizeHtml(config.template, config.whiteList, config.sanitizeFn)
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}
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return config
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}
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@ -1106,4 +1106,164 @@ $(function () {
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assert.strictEqual(offset.offset, myOffset)
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assert.ok(typeof offset.fn === 'undefined')
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})
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QUnit.test('should disable sanitizer', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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sanitize: false
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.strictEqual(tooltip.config.sanitize, false)
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})
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QUnit.test('should sanitize template by removing disallowed tags', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<div>',
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' <script>console.log("oups script inserted")</script>',
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' <span>Some content</span>',
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'</div>'
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].join('')
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.strictEqual(tooltip.config.template.indexOf('script'), -1)
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})
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QUnit.test('should sanitize template by removing disallowed attributes', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<div>',
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' <img src="x" onError="alert(\'test\')">Some content</img>',
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'</div>'
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].join('')
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.strictEqual(tooltip.config.template.indexOf('onError'), -1)
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})
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QUnit.test('should sanitize template by removing tags with XSS', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<div>',
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' <a href="javascript:alert(7)">Click me</a>',
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' <span>Some content</span>',
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'</div>'
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].join('')
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.strictEqual(tooltip.config.template.indexOf('script'), -1)
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})
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QUnit.test('should allow custom sanitization rules', function (assert) {
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assert.expect(2)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<a href="javascript:alert(7)">Click me</a>',
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'<span>Some content</span>'
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].join(''),
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whiteList: {
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span: null
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}
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.strictEqual(tooltip.config.template.indexOf('<a'), -1)
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assert.ok(tooltip.config.template.indexOf('span') !== -1)
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})
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QUnit.test('should allow passing a custom function for sanitization', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<span>Some content</span>'
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].join(''),
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sanitizeFn: function (input) {
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return input
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}
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.ok(tooltip.config.template.indexOf('span') !== -1)
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})
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QUnit.test('should allow passing aria attributes', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<span aria-pressed="true">Some content</span>'
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].join('')
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.ok(tooltip.config.template.indexOf('aria-pressed') !== -1)
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})
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QUnit.test('should not sanitize element content', function (assert) {
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assert.expect(1)
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var $element = $('<div />').appendTo('#qunit-fixture')
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var content = '<script>var test = 1;</script>'
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var $trigger = $('<a href="#" rel="tooltip" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<span aria-pressed="true">Some content</span>'
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].join(''),
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html: true,
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sanitize: false
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})
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var tooltip = $trigger.data('bs.tooltip')
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tooltip.setElementContent($element, content)
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assert.strictEqual($element[0].innerHTML, content)
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})
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QUnit.test('should not take into account sanitize in data attributes', function (assert) {
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assert.expect(1)
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var $trigger = $('<a href="#" rel="tooltip" data-sanitize="false" data-trigger="click" title="Another tooltip"/>')
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.appendTo('#qunit-fixture')
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.bootstrapTooltip({
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template: [
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'<span aria-pressed="true">Some content</span>'
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].join('')
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})
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var tooltip = $trigger.data('bs.tooltip')
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assert.strictEqual(tooltip.config.sanitize, true)
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})
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})
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@ -182,19 +182,19 @@
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},
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{
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"path": "./dist/js/bootstrap.bundle.js",
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"maxSize": "45 kB"
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"maxSize": "47 kB"
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},
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{
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"path": "./dist/js/bootstrap.bundle.min.js",
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"maxSize": "21.25 kB"
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"maxSize": "22 kB"
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},
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{
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"path": "./dist/js/bootstrap.js",
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"maxSize": "23 kB"
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"maxSize": "25 kB"
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},
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{
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"path": "./dist/js/bootstrap.min.js",
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"maxSize": "14.5 kB"
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"maxSize": "15.5 kB"
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}
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],
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"jspm": {
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@ -140,6 +140,11 @@ Enable popovers via JavaScript:
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Options can be passed via data attributes or JavaScript. For data attributes, append the option name to `data-`, as in `data-animation=""`.
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{% capture callout %}
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Note that for security reasons the `sanitize`, `sanitizeFn` and `whiteList` options cannot be supplied using data attributes.
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{% endcapture %}
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{% include callout.html content=callout type="warning" %}
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<table class="table table-bordered table-striped">
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<thead>
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<tr>
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@ -250,6 +255,24 @@ Options can be passed via data attributes or JavaScript. For data attributes, ap
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<td>'scrollParent'</td>
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<td>Overflow constraint boundary of the popover. Accepts the values of <code>'viewport'</code>, <code>'window'</code>, <code>'scrollParent'</code>, or an HTMLElement reference (JavaScript only). For more information refer to Popper.js's <a href="https://popper.js.org/popper-documentation.html#modifiers..preventOverflow.boundariesElement">preventOverflow docs</a>.</td>
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</tr>
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<tr>
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<td>sanitize</td>
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<td>boolean</td>
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<td>true</td>
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<td>Enable or disable the sanitization. If activated <code>'template'</code>, <code>'content'</code> and <code>'title'</code> options will be sanitized.</td>
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</tr>
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<tr>
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<td>whiteList</td>
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<td>object</td>
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<td><a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/#sanitizer">Default value</a></td>
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<td>Object which contains allowed attributes and tags</td>
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</tr>
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<tr>
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<td>sanitizeFn</td>
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<td>null | function</td>
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<td>null</td>
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<td>Here you can supply your own sanitize function. This can be useful if you prefer to use a dedicated library to perform sanitization.</td>
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</tr>
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</tbody>
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</table>
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@ -143,6 +143,11 @@ Elements with the `disabled` attribute aren't interactive, meaning users cannot
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Options can be passed via data attributes or JavaScript. For data attributes, append the option name to `data-`, as in `data-animation=""`.
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{% capture callout %}
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Note that for security reasons the `sanitize`, `sanitizeFn` and `whiteList` options cannot be supplied using data attributes.
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{% endcapture %}
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{% include callout.html content=callout type="warning" %}
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<table class="table table-bordered table-striped">
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -255,6 +260,24 @@ Options can be passed via data attributes or JavaScript. For data attributes, ap
|
|||
<td>'scrollParent'</td>
|
||||
<td>Overflow constraint boundary of the tooltip. Accepts the values of <code>'viewport'</code>, <code>'window'</code>, <code>'scrollParent'</code>, or an HTMLElement reference (JavaScript only). For more information refer to Popper.js's <a href="https://popper.js.org/popper-documentation.html#modifiers..preventOverflow.boundariesElement">preventOverflow docs</a>.</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>sanitize</td>
|
||||
<td>boolean</td>
|
||||
<td>true</td>
|
||||
<td>Enable or disable the sanitization. If activated <code>'template'</code> and <code>'title'</code> options will be sanitized.</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>whiteList</td>
|
||||
<td>object</td>
|
||||
<td><a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/#sanitizer">Default value</a></td>
|
||||
<td>Object which contains allowed attributes and tags</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>sanitizeFn</td>
|
||||
<td>null | function</td>
|
||||
<td>null</td>
|
||||
<td>Here you can supply your own sanitize function. This can be useful if you prefer to use a dedicated library to perform sanitization.</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
|
||||
|
|
|
|||
|
|
@ -139,3 +139,73 @@ Bootstrap's plugins don't fall back particularly gracefully when JavaScript is d
|
|||
All Bootstrap's JavaScript files depend on `util.js` and it has to be included alongside the other JavaScript files. If you're using the compiled (or minified) `bootstrap.js`, there is no need to include this—it's already there.
|
||||
|
||||
`util.js` includes utility functions and a basic helper for `transitionEnd` events as well as a CSS transition emulator. It's used by the other plugins to check for CSS transition support and to catch hanging transitions.
|
||||
|
||||
## Sanitizer
|
||||
|
||||
Tooltips and Popovers use our built-in sanitizer to sanitize options which accept HTML.
|
||||
|
||||
The default `whiteList` value is the following:
|
||||
|
||||
{% highlight js %}
|
||||
var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i
|
||||
var DefaultWhitelist = {
|
||||
// Global attributes allowed on any supplied element below.
|
||||
'*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
|
||||
a: ['target', 'href', 'title', 'rel'],
|
||||
area: [],
|
||||
b: [],
|
||||
br: [],
|
||||
col: [],
|
||||
code: [],
|
||||
div: [],
|
||||
em: [],
|
||||
hr: [],
|
||||
h1: [],
|
||||
h2: [],
|
||||
h3: [],
|
||||
h4: [],
|
||||
h5: [],
|
||||
h6: [],
|
||||
i: [],
|
||||
img: ['src', 'alt', 'title', 'width', 'height'],
|
||||
li: [],
|
||||
ol: [],
|
||||
p: [],
|
||||
pre: [],
|
||||
s: [],
|
||||
small: [],
|
||||
span: [],
|
||||
sub: [],
|
||||
sup: [],
|
||||
strong: [],
|
||||
u: [],
|
||||
ul: []
|
||||
}
|
||||
{% endhighlight %}
|
||||
|
||||
If you want to add new values to this default `whiteList` you can do the following:
|
||||
|
||||
{% highlight js %}
|
||||
var myDefaultWhiteList = $.fn.tooltip.Constructor.Default.whiteList
|
||||
|
||||
// To allow table elements
|
||||
myDefaultWhiteList.table = []
|
||||
|
||||
// To allow td elements and data-option attributes on td elements
|
||||
myDefaultWhiteList.td = ['data-option']
|
||||
|
||||
// You can push your custom regex to validate your attributes.
|
||||
// Be careful about your regular expressions being too lax
|
||||
var myCustomRegex = /^data-my-app-[\w-]+/
|
||||
myDefaultWhiteList['*'].push(myCustomRegex)
|
||||
{% endhighlight %}
|
||||
|
||||
If you want to bypass our sanitizer because you prefer to use a dedicated library, for example [DOMPurify](https://www.npmjs.com/package/dompurify), you should do the following:
|
||||
|
||||
{% highlight js %}
|
||||
$('#yourTooltip').tooltip({
|
||||
sanitizeFn: function (content) {
|
||||
return DOMPurify.sanitize(content)
|
||||
}
|
||||
})
|
||||
{% endhighlight %}
|
||||
|
|
|
|||
Loading…
Reference in New Issue