Current File : /var/www/html/news/public/bower_components/angular-froala/src/froala-sanitize.js
/**
* Orignally textAngular-sanitaize
* https://github.com/fraywing/textAngular
*/
/**
* @license AngularJS v1.3.0-build.2711+sha.facd904
* (c) 2010-2014 Google, Inc. http://angularjs.org
* License: MIT
*/
(function (window, angular, undefined) {
'use strict';
var $sanitizeMinErr = angular.$$minErr('$sanitize');
/**
* @ngdoc module
* @name ngSanitize
* @description
*
* # ngSanitize
*
* The `ngSanitize` module provides functionality to sanitize HTML.
*
*
* <div doc-module-components="ngSanitize"></div>
*
* See {@link ngSanitize.$sanitize `$sanitize`} for usage.
*/
/*
* HTML Parser By Misko Hevery (misko@hevery.com)
* based on: HTML Parser By John Resig (ejohn.org)
* Original code by Erik Arvidsson, Mozilla Public License
* http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
*
* // Use like so:
* htmlParser(htmlString, {
* start: function(tag, attrs, unary) {},
* end: function(tag) {},
* chars: function(text) {},
* comment: function(text) {}
* });
*
*/
/**
* @ngdoc service
* @name $sanitize
* @function
*
* @description
* The input is sanitized by parsing the html into tokens. All safe tokens (from a whitelist) are
* then serialized back to properly escaped html string. This means that no unsafe input can make
* it into the returned string, however, since our parser is more strict than a typical browser
* parser, it's possible that some obscure input, which would be recognized as valid HTML by a
* browser, won't make it through the sanitizer.
* The whitelist is configured using the functions `aHrefSanitizationWhitelist` and
* `imgSrcSanitizationWhitelist` of {@link ng.$compileProvider `$compileProvider`}.
*
* @param {string} html Html input.
* @returns {string} Sanitized html.
*
* @example
<example module="ngSanitize" deps="angular-sanitize.js">
<file name="index.html">
<script>
function Ctrl($scope, $sce) {
$scope.snippet =
'<p style="color:blue">an html\n' +
'<em onmouseover="this.textContent=\'PWN3D!\'">click here</em>\n' +
'snippet</p>';
$scope.deliberatelyTrustDangerousSnippet = function() {
return $sce.trustAsHtml($scope.snippet);
};
}
</script>
<div ng-controller="Ctrl">
Snippet: <textarea ng-model="snippet" cols="60" rows="3"></textarea>
<table>
<tr>
<td>Directive</td>
<td>How</td>
<td>Source</td>
<td>Rendered</td>
</tr>
<tr id="bind-html-with-sanitize">
<td>ng-bind-html</td>
<td>Automatically uses $sanitize</td>
<td><pre><div ng-bind-html="snippet"><br/></div></pre></td>
<td><div ng-bind-html="snippet"></div></td>
</tr>
<tr id="bind-html-with-trust">
<td>ng-bind-html</td>
<td>Bypass $sanitize by explicitly trusting the dangerous value</td>
<td>
<pre><div ng-bind-html="deliberatelyTrustDangerousSnippet()">
</div></pre>
</td>
<td><div ng-bind-html="deliberatelyTrustDangerousSnippet()"></div></td>
</tr>
<tr id="bind-default">
<td>ng-bind</td>
<td>Automatically escapes</td>
<td><pre><div ng-bind="snippet"><br/></div></pre></td>
<td><div ng-bind="snippet"></div></td>
</tr>
</table>
</div>
</file>
<file name="protractor.js" type="protractor">
it('should sanitize the html snippet by default', function() {
expect(element(by.css('#bind-html-with-sanitize div')).getInnerHtml()).
toBe('<p>an html\n<em>click here</em>\nsnippet</p>');
});
it('should inline raw snippet if bound to a trusted value', function() {
expect(element(by.css('#bind-html-with-trust div')).getInnerHtml()).
toBe("<p style=\"color:blue\">an html\n" +
"<em onmouseover=\"this.textContent='PWN3D!'\">click here</em>\n" +
"snippet</p>");
});
it('should escape snippet without any filter', function() {
expect(element(by.css('#bind-default div')).getInnerHtml()).
toBe("<p style=\"color:blue\">an html\n" +
"<em onmouseover=\"this.textContent='PWN3D!'\">click here</em>\n" +
"snippet</p>");
});
it('should update', function() {
element(by.model('snippet')).clear();
element(by.model('snippet')).sendKeys('new <b onclick="alert(1)">text</b>');
expect(element(by.css('#bind-html-with-sanitize div')).getInnerHtml()).
toBe('new <b>text</b>');
expect(element(by.css('#bind-html-with-trust div')).getInnerHtml()).toBe(
'new <b onclick="alert(1)">text</b>');
expect(element(by.css('#bind-default div')).getInnerHtml()).toBe(
"new <b onclick=\"alert(1)\">text</b>");
});
</file>
</example>
*/
function $SanitizeProvider() {
this.$get = ['$$sanitizeUri', function ($$sanitizeUri) {
return function (html) {
var buf = [];
htmlParser(html, htmlSanitizeWriter(buf, function (uri, isImage) {
return !/^unsafe/.test($$sanitizeUri(uri, isImage));
}));
return buf.join('');
};
}];
}
function sanitizeText(chars) {
var buf = [];
var writer = htmlSanitizeWriter(buf, angular.noop);
writer.chars(chars);
return buf.join('');
}
// Regular Expressions for parsing tags and attributes
var START_TAG_REGEXP =
/^<\s*([\w:-]+)((?:\s+[\w:-]+(?:\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|[^>\s]+))?)*)\s*(\/?)\s*>/,
END_TAG_REGEXP = /^<\s*\/\s*([\w:-]+)[^>]*>/,
ATTR_REGEXP = /([\w:-]+)(?:\s*=\s*(?:(?:"((?:[^"])*)")|(?:'((?:[^'])*)')|([^>\s]+)))?/g,
BEGIN_TAG_REGEXP = /^</,
BEGING_END_TAGE_REGEXP = /^<\s*\//,
COMMENT_REGEXP = /<!--(.*?)-->/g,
DOCTYPE_REGEXP = /<!DOCTYPE([^>]*?)>/i,
CDATA_REGEXP = /<!\[CDATA\[(.*?)]]>/g,
SURROGATE_PAIR_REGEXP = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g,
// Match everything outside of normal chars and " (quote character)
NON_ALPHANUMERIC_REGEXP = /([^\#-~| |!])/g;
// Good source of info about elements and attributes
// http://dev.w3.org/html5/spec/Overview.html#semantics
// http://simon.html5.org/html-elements
// Safe Void Elements - HTML5
// http://dev.w3.org/html5/spec/Overview.html#void-elements
var voidElements = makeMap("area,br,col,hr,img,wbr");
// Elements that you can, intentionally, leave open (and which close themselves)
// http://dev.w3.org/html5/spec/Overview.html#optional-tags
var optionalEndTagBlockElements = makeMap("colgroup,dd,dt,li,p,tbody,td,tfoot,th,thead,tr"),
optionalEndTagInlineElements = makeMap("rp,rt"),
optionalEndTagElements = angular.extend({},
optionalEndTagInlineElements,
optionalEndTagBlockElements);
// Safe Block Elements - HTML5
var blockElements = angular.extend({}, optionalEndTagBlockElements, makeMap("address,article," +
"aside,blockquote,caption,center,del,dir,div,dl,figure,figcaption,footer,h1,h2,h3,h4,h5," +
"h6,header,hgroup,hr,ins,map,menu,nav,ol,pre,script,section,table,ul"));
// Inline Elements - HTML5
var inlineElements = angular.extend({}, optionalEndTagInlineElements, makeMap("a,abbr,acronym,b," +
"bdi,bdo,big,br,cite,code,del,dfn,em,font,i,img,ins,kbd,label,map,mark,q,ruby,rp,rt,s," +
"samp,small,span,strike,strong,sub,sup,time,tt,u,var"));
// Special Elements (can contain anything)
var specialElements = makeMap("script,style");
var validElements = angular.extend({},
voidElements,
blockElements,
inlineElements,
optionalEndTagElements);
//Attributes that have href and hence need to be sanitized
var uriAttrs = makeMap("background,cite,href,longdesc,src,usemap");
var validAttrs = angular.extend({}, uriAttrs, makeMap(
'abbr,align,alt,axis,bgcolor,border,cellpadding,cellspacing,class,clear,' +
'color,cols,colspan,compact,coords,dir,face,headers,height,hreflang,hspace,' +
'ismap,lang,language,nohref,nowrap,rel,rev,rows,rowspan,rules,' +
'scope,scrolling,shape,size,span,start,summary,target,title,type,' +
'valign,value,vspace,width'));
function makeMap(str) {
var obj = {}, items = str.split(','), i;
for (i = 0; i < items.length; i++) {
obj[items[i]] = true;
}
return obj;
}
/**
* @example
* htmlParser(htmlString, {
* start: function(tag, attrs, unary) {},
* end: function(tag) {},
* chars: function(text) {},
* comment: function(text) {}
* });
*
* @param {string} html string
* @param {object} handler
*/
function htmlParser(html, handler) {
var index, chars, match, stack = [], last = html;
stack.last = function () {
return stack[stack.length - 1];
};
while (html) {
chars = true;
// Make sure we're not in a script or style element
if (!stack.last() || !specialElements[stack.last()]) {
// Comment
if (html.indexOf("<!--") === 0) {
// comments containing -- are not allowed unless they terminate the comment
index = html.indexOf("--", 4);
if (index >= 0 && html.lastIndexOf("-->", index) === index) {
if (handler.comment) {
handler.comment(html.substring(4, index));
}
html = html.substring(index + 3);
chars = false;
}
// DOCTYPE
} else if (DOCTYPE_REGEXP.test(html)) {
match = html.match(DOCTYPE_REGEXP);
if (match) {
html = html.replace(match[0], '');
chars = false;
}
// end tag
} else if (BEGING_END_TAGE_REGEXP.test(html)) {
match = html.match(END_TAG_REGEXP);
if (match) {
html = html.substring(match[0].length);
match[0].replace(END_TAG_REGEXP, parseEndTag);
chars = false;
}
// start tag
} else if (BEGIN_TAG_REGEXP.test(html)) {
match = html.match(START_TAG_REGEXP);
if (match) {
html = html.substring(match[0].length);
match[0].replace(START_TAG_REGEXP, parseStartTag);
chars = false;
}
}
if (chars) {
index = html.indexOf("<");
var text = index < 0 ? html : html.substring(0, index);
html = index < 0 ? "" : html.substring(index);
if (handler.chars) {
handler.chars(decodeEntities(text));
}
}
} else {
html = html.replace(new RegExp("(.*)<\\s*\\/\\s*" + stack.last() + "[^>]*>", 'i'),
function (all, text) {
text = text.replace(COMMENT_REGEXP, "$1").replace(CDATA_REGEXP, "$1");
if (handler.chars) {
handler.chars(decodeEntities(text));
}
return "";
});
parseEndTag("", stack.last());
}
if (html === last) {
throw $sanitizeMinErr('badparse', "The sanitizer was unable to parse the following block " +
"of html: {0}", html);
}
last = html;
}
// Clean up any remaining tags
parseEndTag();
function parseStartTag(tag, tagName, rest, unary) {
tagName = angular.lowercase(tagName);
if (blockElements[tagName]) {
while (stack.last() && inlineElements[stack.last()]) {
parseEndTag("", stack.last());
}
}
if (optionalEndTagElements[tagName] && stack.last() === tagName) {
parseEndTag("", tagName);
}
unary = voidElements[tagName] || !!unary;
if (!unary) {
stack.push(tagName);
}
var attrs = {};
rest.replace(ATTR_REGEXP,
function (match, name, doubleQuotedValue, singleQuotedValue, unquotedValue) {
var value = doubleQuotedValue ||
singleQuotedValue ||
unquotedValue ||
'';
attrs[name] = decodeEntities(value);
});
if (handler.start) {
handler.start(tagName, attrs, unary);
}
}
function parseEndTag(tag, tagName) {
var pos = 0, i;
tagName = angular.lowercase(tagName);
if (tagName) {
// Find the closest opened tag of the same type
for (pos = stack.length - 1; pos >= 0; pos--) {
if (stack[pos] === tagName) {
break;
}
}
}
if (pos >= 0) {
// Close all the open elements, up the stack
for (i = stack.length - 1; i >= pos; i--) {
if (handler.end) {
handler.end(stack[i]);
}
}
// Remove the open elements from the stack
stack.length = pos;
}
}
}
var hiddenPre = document.createElement("pre");
var spaceRe = /^(\s*)([\s\S]*?)(\s*)$/;
/**
* decodes all entities into regular string
* @param value
* @returns {string} A string with decoded entities.
*/
function decodeEntities(value) {
if (!value) {
return '';
}
// Note: IE8 does not preserve spaces at the start/end of innerHTML
// so we must capture them and reattach them afterward
var parts = spaceRe.exec(value);
var spaceBefore = parts[1];
var spaceAfter = parts[3];
var content = parts[2];
if (content) {
hiddenPre.innerHTML = content.replace(/</g, "<");
// innerText depends on styling as it doesn't display hidden elements.
// Therefore, it's better to use textContent not to cause unnecessary
// reflows. However, IE<9 don't support textContent so the innerText
// fallback is necessary.
content = 'textContent' in hiddenPre ?
hiddenPre.textContent : hiddenPre.innerText;
}
return spaceBefore + content + spaceAfter;
}
/**
* Escapes all potentially dangerous characters, so that the
* resulting string can be safely inserted into attribute or
* element text.
* @param value
* @returns {string} escaped text
*/
function encodeEntities(value) {
return value.
replace(/&/g, '&').
replace(SURROGATE_PAIR_REGEXP, function (value) {
var hi = value.charCodeAt(0);
var low = value.charCodeAt(1);
return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';';
}).
replace(NON_ALPHANUMERIC_REGEXP, function (value) {
// unsafe chars are: \u0000-\u001f \u007f-\u009f \u00ad \u0600-\u0604 \u070f \u17b4 \u17b5 \u200c-\u200f \u2028-\u202f \u2060-\u206f \ufeff \ufff0-\uffff from jslint.com/lint.html
// decimal values are: 0-31, 127-159, 173, 1536-1540, 1807, 6068, 6069, 8204-8207, 8232-8239, 8288-8303, 65279, 65520-65535
var c = value.charCodeAt(0);
// if unsafe character encode
if (c <= 159 ||
c === 173 ||
(c >= 1536 && c <= 1540) ||
c === 1807 ||
c === 6068 ||
c === 6069 ||
(c >= 8204 && c <= 8207) ||
(c >= 8232 && c <= 8239) ||
(c >= 8288 && c <= 8303) ||
c === 65279 ||
(c >= 65520 && c <= 65535)) {
return '&#' + c + ';';
}
return value; // avoids multilingual issues
}).
replace(/</g, '<').
replace(/>/g, '>');
}
var trim = (function () {
// native trim is way faster: http://jsperf.com/angular-trim-test
// but IE doesn't have it... :-(
// TODO: we should move this into IE/ES5 polyfill
if (!String.prototype.trim) {
return function (value) {
return angular.isString(value) ? value.replace(/^\s\s*/, '').replace(/\s\s*$/, '') : value;
};
}
return function (value) {
return angular.isString(value) ? value.trim() : value;
};
})();
// Custom logic for accepting certain style options only - angularFroala
// Currently allows only the color, background-color, text-align, direction, font-family, font-size, float, width and height attributes
// all other attributes should be easily done through classes.
function validStyles(styleAttr) {
var result = '';
var styleArray = styleAttr.split(';');
angular.forEach(styleArray, function (value) {
var v = value.split(':');
if (v.length === 2) {
var key = trim(angular.lowercase(v[0]));
value = trim(angular.lowercase(v[1]));
if (
(key === 'color' || key === 'background-color') && (
value.match(/^rgb\([0-9%,\. ]*\)$/i) ||
value.match(/^rgba\([0-9%,\. ]*\)$/i) ||
value.match(/^hsl\([0-9%,\. ]*\)$/i) ||
value.match(/^hsla\([0-9%,\. ]*\)$/i) ||
value.match(/^#[0-9a-f]{3,6}$/i) ||
value.match(/^[a-z]*$/i)
) ||
key === 'text-align' && (
value === 'left' ||
value === 'right' ||
value === 'center' ||
value === 'justify'
) ||
key === 'float' && (
value === 'left' ||
value === 'right' ||
value === 'none'
) ||
key === 'direction' && (
value === 'rtl' ||
value === 'ltr'
) ||
key === 'font-family' && (
value === 'arial,helvetica,sans-serif' ||
value === 'georgia,serif' ||
value === 'impact,charcoal,sans-serif' ||
value === 'tahoma,geneva,sans-serif' ||
value === "'times new roman',times,serif" ||
value === 'verdana,geneva,sans-serif'
) ||
(key === 'width' || key === 'height' || key === 'font-size' || key === 'margin-left') && (
value.match(/[0-9\.]*(px|em|rem|%)/)
)
) {
result += key + ': ' + value + ';';
}
}
});
return result;
}
// this function is used to manually allow specific attributes on specific tags with certain prerequisites
function validCustomTag(tag, attrs, lkey, value) {
// catch the div placeholder for the iframe replacement
if (tag === 'img' && attrs['ta-insert-video']) {
if (lkey === 'ta-insert-video' || lkey === 'allowfullscreen' || lkey === 'frameborder' || (lkey === 'contenteditble' && value === 'false')) {
return true;
}
}
return false;
}
/**
* create an HTML/XML writer which writes to buffer
* @param {Array} buf use buf.jain('') to get out sanitized html string
* @returns {object} in the form of {
* start: function(tag, attrs, unary) {},
* end: function(tag) {},
* chars: function(text) {},
* comment: function(text) {}
* }
*/
function htmlSanitizeWriter(buf, uriValidator) {
var ignore = false;
var out = angular.bind(buf, buf.push);
return {
start: function (tag, attrs, unary) {
tag = angular.lowercase(tag);
if (!ignore && specialElements[tag]) {
ignore = tag;
}
if (!ignore && validElements[tag] === true) {
out('<');
out(tag);
angular.forEach(attrs, function (value, key) {
var lkey = angular.lowercase(key);
var isImage = (tag === 'img' && lkey === 'src') || (lkey === 'background');
if ((lkey === 'style' && (value = validStyles(value)) !== '') || validCustomTag(tag, attrs, lkey, value) || validAttrs[lkey] === true &&
(uriAttrs[lkey] !== true || uriValidator(value, isImage))) {
out(' ');
out(key);
out('="');
out(encodeEntities(value));
out('"');
}
});
out(unary ? '/>' : '>');
}
},
end: function (tag) {
tag = angular.lowercase(tag);
if (!ignore && validElements[tag] === true) {
out('</');
out(tag);
out('>');
}
if (tag === ignore) {
ignore = false;
}
},
chars: function (chars) {
if (!ignore) {
out(encodeEntities(chars));
}
}
};
}
// define ngSanitize module and register $sanitize service
angular.module('ngSanitize', []).provider('$sanitize', $SanitizeProvider);
/* sanitizeText: false */
/**
* @ngdoc filter
* @name linky
* @function
*
* @description
* Finds links in text input and turns them into html links. Supports http/https/ftp/mailto and
* plain email address links.
*
* Requires the {@link ngSanitize `ngSanitize`} module to be installed.
*
* @param {string} text Input text.
* @param {string} target Window (_blank|_self|_parent|_top) or named frame to open links in.
* @returns {string} Html-linkified text.
*
* @usage
<span ng-bind-html="linky_expression | linky"></span>
*
* @example
<example module="ngSanitize" deps="angular-sanitize.js">
<file name="index.html">
<script>
function Ctrl($scope) {
$scope.snippet =
'Pretty text with some links:\n'+
'http://angularjs.org/,\n'+
'mailto:us@somewhere.org,\n'+
'another@somewhere.org,\n'+
'and one more: ftp://127.0.0.1/.';
$scope.snippetWithTarget = 'http://angularjs.org/';
}
</script>
<div ng-controller="Ctrl">
Snippet: <textarea ng-model="snippet" cols="60" rows="3"></textarea>
<table>
<tr>
<td>Filter</td>
<td>Source</td>
<td>Rendered</td>
</tr>
<tr id="linky-filter">
<td>linky filter</td>
<td>
<pre><div ng-bind-html="snippet | linky"><br></div></pre>
</td>
<td>
<div ng-bind-html="snippet | linky"></div>
</td>
</tr>
<tr id="linky-target">
<td>linky target</td>
<td>
<pre><div ng-bind-html="snippetWithTarget | linky:'_blank'"><br></div></pre>
</td>
<td>
<div ng-bind-html="snippetWithTarget | linky:'_blank'"></div>
</td>
</tr>
<tr id="escaped-html">
<td>no filter</td>
<td><pre><div ng-bind="snippet"><br></div></pre></td>
<td><div ng-bind="snippet"></div></td>
</tr>
</table>
</file>
<file name="protractor.js" type="protractor">
it('should linkify the snippet with urls', function() {
expect(element(by.id('linky-filter')).element(by.binding('snippet | linky')).getText()).
toBe('Pretty text with some links: http://angularjs.org/, us@somewhere.org, ' +
'another@somewhere.org, and one more: ftp://127.0.0.1/.');
expect(element.all(by.css('#linky-filter a')).count()).toEqual(4);
});
it('should not linkify snippet without the linky filter', function() {
expect(element(by.id('escaped-html')).element(by.binding('snippet')).getText()).
toBe('Pretty text with some links: http://angularjs.org/, mailto:us@somewhere.org, ' +
'another@somewhere.org, and one more: ftp://127.0.0.1/.');
expect(element.all(by.css('#escaped-html a')).count()).toEqual(0);
});
it('should update', function() {
element(by.model('snippet')).clear();
element(by.model('snippet')).sendKeys('new http://link.');
expect(element(by.id('linky-filter')).element(by.binding('snippet | linky')).getText()).
toBe('new http://link.');
expect(element.all(by.css('#linky-filter a')).count()).toEqual(1);
expect(element(by.id('escaped-html')).element(by.binding('snippet')).getText())
.toBe('new http://link.');
});
it('should work with the target property', function() {
expect(element(by.id('linky-target')).
element(by.binding("snippetWithTarget | linky:'_blank'")).getText()).
toBe('http://angularjs.org/');
expect(element(by.css('#linky-target a')).getAttribute('target')).toEqual('_blank');
});
</file>
</example>
*/
angular.module('ngSanitize').filter('linky', ['$sanitize', function ($sanitize) {
var LINKY_URL_REGEXP =
/((ftp|https?):\/\/|(mailto:)?[A-Za-z0-9._%+-]+@)\S*[^\s.;,(){}<>]/,
MAILTO_REGEXP = /^mailto:/;
return function (text, target) {
if (!text) {
return text;
}
var match;
var raw = text;
var html = [];
var url;
var i;
while ((match = raw.match(LINKY_URL_REGEXP))) {
// We can not end in these as they are sometimes found at the end of the sentence
url = match[0];
// if we did not match ftp/http/mailto then assume mailto
if (match[2] === match[3]) {
url = 'mailto:' + url;
}
i = match.index;
addText(raw.substr(0, i));
addLink(url, match[0].replace(MAILTO_REGEXP, ''));
raw = raw.substring(i + match[0].length);
}
addText(raw);
return $sanitize(html.join(''));
function addText(text) {
if (!text) {
return;
}
html.push(sanitizeText(text));
}
function addLink(url, text) {
html.push('<a ');
if (angular.isDefined(target)) {
html.push('target="');
html.push(target);
html.push('" ');
}
html.push('href="');
html.push(url);
html.push('">');
addText(text);
html.push('</a>');
}
};
}]);
})(window, window.angular);
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