From 8bba4880202ef6bd7a1e379fe9aebe69dd75f7be Mon Sep 17 00:00:00 2001
From: Michael Schmidt <mitchi5000.ms@googlemail.com>
Date: Thu, 6 Aug 2020 12:12:39 +0200
Subject: [PATCH] Previewers: Fixed XSS (#2506)

---
 plugins/previewers/prism-previewers.js     | 4 ++--
 plugins/previewers/prism-previewers.min.js | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/plugins/previewers/prism-previewers.js b/plugins/previewers/prism-previewers.js
index 188361c281..eaf0500af1 100644
--- a/plugins/previewers/prism-previewers.js
+++ b/plugins/previewers/prism-previewers.js
@@ -353,8 +353,8 @@
 						'</marker>' +
 						'</defs>' +
 						'<path d="M0,100 C20,50, 40,30, 100,0" />' +
-						'<line x1="0" y1="100" x2="20" y2="50" marker-start="url(' + location.href + '#prism-previewer-easing-marker)" marker-end="url(' + location.href + '#prism-previewer-easing-marker)" />' +
-						'<line x1="100" y1="0" x2="40" y2="30" marker-start="url(' + location.href + '#prism-previewer-easing-marker)" marker-end="url(' + location.href + '#prism-previewer-easing-marker)" />' +
+						'<line x1="0" y1="100" x2="20" y2="50" marker-start="url(#prism-previewer-easing-marker)" marker-end="url(#prism-previewer-easing-marker)" />' +
+						'<line x1="100" y1="0" x2="40" y2="30" marker-start="url(#prism-previewer-easing-marker)" marker-end="url(#prism-previewer-easing-marker)" />' +
 						'</svg>';
 				});
 			},
diff --git a/plugins/previewers/prism-previewers.min.js b/plugins/previewers/prism-previewers.min.js
index cd7e06edd8..323f4472e8 100644
--- a/plugins/previewers/prism-previewers.min.js
+++ b/plugins/previewers/prism-previewers.min.js
@@ -1 +1 @@
-!function(){if(("undefined"==typeof self||self.Prism)&&self.document&&Function.prototype.bind){var r,s,o={gradient:{create:(r={},s=function(e){if(r[e])return r[e];var s=e.match(/^(\b|\B-[a-z]{1,10}-)((?:repeating-)?(?:linear|radial)-gradient)/),t=s&&s[1],i=s&&s[2],a=e.replace(/^(?:\b|\B-[a-z]{1,10}-)(?:repeating-)?(?:linear|radial)-gradient\(|\)$/g,"").split(/\s*,\s*/);return 0<=i.indexOf("linear")?r[e]=function(e,s,t){var i="180deg";return/^(?:-?\d*\.?\d+(?:deg|rad)|to\b|top|right|bottom|left)/.test(t[0])&&(i=t.shift()).indexOf("to ")<0&&(0<=i.indexOf("top")?i=0<=i.indexOf("left")?"to bottom right":0<=i.indexOf("right")?"to bottom left":"to bottom":0<=i.indexOf("bottom")?i=0<=i.indexOf("left")?"to top right":0<=i.indexOf("right")?"to top left":"to top":0<=i.indexOf("left")?i="to right":0<=i.indexOf("right")?i="to left":e&&(0<=i.indexOf("deg")?i=90-parseFloat(i)+"deg":0<=i.indexOf("rad")&&(i=Math.PI/2-parseFloat(i)+"rad"))),s+"("+i+","+t.join(",")+")"}(t,i,a):0<=i.indexOf("radial")?r[e]=function(e,s,t){if(t[0].indexOf("at")<0){var i="center",a="ellipse",r="farthest-corner";if(/\bcenter|top|right|bottom|left\b|^\d+/.test(t[0])&&(i=t.shift().replace(/\s*-?\d+(?:rad|deg)\s*/,"")),/\bcircle|ellipse|closest|farthest|contain|cover\b/.test(t[0])){var n=t.shift().split(/\s+/);!n[0]||"circle"!==n[0]&&"ellipse"!==n[0]||(a=n.shift()),n[0]&&(r=n.shift()),"cover"===r?r="farthest-corner":"contain"===r&&(r="clothest-side")}return s+"("+a+" "+r+" at "+i+","+t.join(",")+")"}return s+"("+t.join(",")+")"}(0,i,a):r[e]=i+"("+a.join(",")+")"},function(){new Prism.plugins.Previewer("gradient",function(e){return this.firstChild.style.backgroundImage="",this.firstChild.style.backgroundImage=s(e),!!this.firstChild.style.backgroundImage},"*",function(){this._elt.innerHTML="<div></div>"})}),tokens:{gradient:{pattern:/(?:\b|\B-[a-z]{1,10}-)(?:repeating-)?(?:linear|radial)-gradient\((?:(?:rgb|hsl)a?\(.+?\)|[^\)])+\)/gi,inside:{function:/[\w-]+(?=\()/,punctuation:/[(),]/}}},languages:{css:!0,less:!0,sass:[{lang:"sass",before:"punctuation",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]},{lang:"sass",before:"punctuation",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]}],scss:!0,stylus:[{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},angle:{create:function(){new Prism.plugins.Previewer("angle",function(e){var s,t,i=parseFloat(e),a=e.match(/[a-z]+$/i);if(!i||!a)return!1;switch(a=a[0]){case"deg":s=360;break;case"grad":s=400;break;case"rad":s=2*Math.PI;break;case"turn":s=1}return t=100*i/s,t%=100,this[(i<0?"set":"remove")+"Attribute"]("data-negative",""),this.querySelector("circle").style.strokeDasharray=Math.abs(t)+",500",!0},"*",function(){this._elt.innerHTML='<svg viewBox="0 0 64 64"><circle r="16" cy="32" cx="32"></circle></svg>'})},tokens:{angle:/(?:\b|\B-|(?=\B\.))\d*\.?\d+(?:deg|g?rad|turn)\b/i},languages:{css:!0,less:!0,markup:{lang:"markup",before:"punctuation",inside:"inside",root:Prism.languages.markup&&Prism.languages.markup.tag.inside["attr-value"]},sass:[{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]},{lang:"sass",before:"operator",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]}],scss:!0,stylus:[{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},color:{create:function(){new Prism.plugins.Previewer("color",function(e){return this.style.backgroundColor="",this.style.backgroundColor=e,!!this.style.backgroundColor})},tokens:{color:[Prism.languages.css.hexcode].concat(Prism.languages.css.color)},languages:{css:!1,less:!0,markup:{lang:"markup",before:"punctuation",inside:"inside",root:Prism.languages.markup&&Prism.languages.markup.tag.inside["attr-value"]},sass:[{lang:"sass",before:"punctuation",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]},{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]}],scss:!1,stylus:[{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},easing:{create:function(){new Prism.plugins.Previewer("easing",function(e){var s=(e={linear:"0,0,1,1",ease:".25,.1,.25,1","ease-in":".42,0,1,1","ease-out":"0,0,.58,1","ease-in-out":".42,0,.58,1"}[e]||e).match(/-?\d*\.?\d+/g);if(4!==s.length)return!1;s=s.map(function(e,s){return 100*(s%2?1-e:e)}),this.querySelector("path").setAttribute("d","M0,100 C"+s[0]+","+s[1]+", "+s[2]+","+s[3]+", 100,0");var t=this.querySelectorAll("line");return t[0].setAttribute("x2",s[0]),t[0].setAttribute("y2",s[1]),t[1].setAttribute("x2",s[2]),t[1].setAttribute("y2",s[3]),!0},"*",function(){this._elt.innerHTML='<svg viewBox="-20 -20 140 140" width="100" height="100"><defs><marker id="prism-previewer-easing-marker" viewBox="0 0 4 4" refX="2" refY="2" markerUnits="strokeWidth"><circle cx="2" cy="2" r="1.5" /></marker></defs><path d="M0,100 C20,50, 40,30, 100,0" /><line x1="0" y1="100" x2="20" y2="50" marker-start="url('+location.href+'#prism-previewer-easing-marker)" marker-end="url('+location.href+'#prism-previewer-easing-marker)" /><line x1="100" y1="0" x2="40" y2="30" marker-start="url('+location.href+'#prism-previewer-easing-marker)" marker-end="url('+location.href+'#prism-previewer-easing-marker)" /></svg>'})},tokens:{easing:{pattern:/\bcubic-bezier\((?:-?\d*\.?\d+,\s*){3}-?\d*\.?\d+\)\B|\b(?:linear|ease(?:-in)?(?:-out)?)(?=\s|[;}]|$)/i,inside:{function:/[\w-]+(?=\()/,punctuation:/[(),]/}}},languages:{css:!0,less:!0,sass:[{lang:"sass",inside:"inside",before:"punctuation",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]},{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]}],scss:!0,stylus:[{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},time:{create:function(){new Prism.plugins.Previewer("time",function(e){var s=parseFloat(e),t=e.match(/[a-z]+$/i);return!(!s||!t)&&(t=t[0],this.querySelector("circle").style.animationDuration=2*s+t,!0)},"*",function(){this._elt.innerHTML='<svg viewBox="0 0 64 64"><circle r="16" cy="32" cx="32"></circle></svg>'})},tokens:{time:/(?:\b|\B-|(?=\B\.))\d*\.?\d+m?s\b/i},languages:{css:!0,less:!0,markup:{lang:"markup",before:"punctuation",inside:"inside",root:Prism.languages.markup&&Prism.languages.markup.tag.inside["attr-value"]},sass:[{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]},{lang:"sass",before:"operator",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]}],scss:!0,stylus:[{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}}},t=/(?:^|\s)token(?=$|\s)/,e=/(?:^|\s)active(?=$|\s)/g,i=/(?:^|\s)flipped(?=$|\s)/g,n=function(e,s,t,i){this._elt=null,this._type=e,this._clsRegexp=RegExp("(?:^|\\s)"+e+"(?=$|\\s)"),this._token=null,this.updater=s,this._mouseout=this.mouseout.bind(this),this.initializer=i;var a=this;t||(t=["*"]),Array.isArray(t)||(t=[t]),t.forEach(function(e){"string"!=typeof e&&(e=e.lang),n.byLanguages[e]||(n.byLanguages[e]=[]),n.byLanguages[e].indexOf(a)<0&&n.byLanguages[e].push(a)}),n.byType[e]=this};for(var a in n.prototype.init=function(){this._elt||(this._elt=document.createElement("div"),this._elt.className="prism-previewer prism-previewer-"+this._type,document.body.appendChild(this._elt),this.initializer&&this.initializer())},n.prototype.isDisabled=function(e){do{if(e.hasAttribute&&e.hasAttribute("data-previewers"))return-1===(e.getAttribute("data-previewers")||"").split(/\s+/).indexOf(this._type)}while(e=e.parentNode);return!1},n.prototype.check=function(e){if(!t.test(e.className)||!this.isDisabled(e)){do{if(t.test(e.className)&&this._clsRegexp.test(e.className))break}while(e=e.parentNode);e&&e!==this._token&&(this._token=e,this.show())}},n.prototype.mouseout=function(){this._token.removeEventListener("mouseout",this._mouseout,!1),this._token=null,this.hide()},n.prototype.show=function(){if(this._elt||this.init(),this._token)if(this.updater.call(this._elt,this._token.textContent)){this._token.addEventListener("mouseout",this._mouseout,!1);var e=function(e){var s=e.getBoundingClientRect(),t=s.left,i=s.top,a=document.documentElement.getBoundingClientRect();return t-=a.left,{top:i-=a.top,right:innerWidth-t-s.width,bottom:innerHeight-i-s.height,left:t,width:s.width,height:s.height}}(this._token);this._elt.className+=" active",0<e.top-this._elt.offsetHeight?(this._elt.className=this._elt.className.replace(i,""),this._elt.style.top=e.top+"px",this._elt.style.bottom=""):(this._elt.className+=" flipped",this._elt.style.bottom=e.bottom+"px",this._elt.style.top=""),this._elt.style.left=e.left+Math.min(200,e.width/2)+"px"}else this.hide()},n.prototype.hide=function(){this._elt.className=this._elt.className.replace(e,"")},n.byLanguages={},n.byType={},n.initEvents=function(e,s){var t=[];n.byLanguages[s]&&(t=t.concat(n.byLanguages[s])),n.byLanguages["*"]&&(t=t.concat(n.byLanguages["*"])),e.addEventListener("mouseover",function(e){var s=e.target;t.forEach(function(e){e.check(s)})},!1)},Prism.plugins.Previewer=n,Prism.hooks.add("before-highlight",function(r){for(var n in o){var l=o[n].languages;if(r.language&&l[r.language]&&!l[r.language].initialized){var e=l[r.language];Array.isArray(e)||(e=[e]),e.forEach(function(e){var s,t,i,a;e=(!0===e?(s="important",t=r.language):(s=e.before||"important",t=e.inside||e.lang,i=e.root||Prism.languages,a=e.skip),r.language),!a&&Prism.languages[e]&&(Prism.languages.insertBefore(t,s,o[n].tokens,i),r.grammar=Prism.languages[e],l[r.language]={initialized:!0})})}}}),Prism.hooks.add("after-highlight",function(e){(n.byLanguages["*"]||n.byLanguages[e.language])&&n.initEvents(e.element,e.language)}),o)o[a].create()}}();
\ No newline at end of file
+!function(){if(("undefined"==typeof self||self.Prism)&&self.document&&Function.prototype.bind){var r,s,o={gradient:{create:(r={},s=function(e){if(r[e])return r[e];var s=e.match(/^(\b|\B-[a-z]{1,10}-)((?:repeating-)?(?:linear|radial)-gradient)/),t=s&&s[1],i=s&&s[2],a=e.replace(/^(?:\b|\B-[a-z]{1,10}-)(?:repeating-)?(?:linear|radial)-gradient\(|\)$/g,"").split(/\s*,\s*/);return 0<=i.indexOf("linear")?r[e]=function(e,s,t){var i="180deg";return/^(?:-?\d*\.?\d+(?:deg|rad)|to\b|top|right|bottom|left)/.test(t[0])&&(i=t.shift()).indexOf("to ")<0&&(0<=i.indexOf("top")?i=0<=i.indexOf("left")?"to bottom right":0<=i.indexOf("right")?"to bottom left":"to bottom":0<=i.indexOf("bottom")?i=0<=i.indexOf("left")?"to top right":0<=i.indexOf("right")?"to top left":"to top":0<=i.indexOf("left")?i="to right":0<=i.indexOf("right")?i="to 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this.firstChild.style.backgroundImage="",this.firstChild.style.backgroundImage=s(e),!!this.firstChild.style.backgroundImage},"*",function(){this._elt.innerHTML="<div></div>"})}),tokens:{gradient:{pattern:/(?:\b|\B-[a-z]{1,10}-)(?:repeating-)?(?:linear|radial)-gradient\((?:(?:rgb|hsl)a?\(.+?\)|[^\)])+\)/gi,inside:{function:/[\w-]+(?=\()/,punctuation:/[(),]/}}},languages:{css:!0,less:!0,sass:[{lang:"sass",before:"punctuation",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]},{lang:"sass",before:"punctuation",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]}],scss:!0,stylus:[{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},angle:{create:function(){new Prism.plugins.Previewer("angle",function(e){var s,t,i=parseFloat(e),a=e.match(/[a-z]+$/i);if(!i||!a)return!1;switch(a=a[0]){case"deg":s=360;break;case"grad":s=400;break;case"rad":s=2*Math.PI;break;case"turn":s=1}return t=100*i/s,t%=100,this[(i<0?"set":"remove")+"Attribute"]("data-negative",""),this.querySelector("circle").style.strokeDasharray=Math.abs(t)+",500",!0},"*",function(){this._elt.innerHTML='<svg viewBox="0 0 64 64"><circle r="16" cy="32" cx="32"></circle></svg>'})},tokens:{angle:/(?:\b|\B-|(?=\B\.))\d*\.?\d+(?:deg|g?rad|turn)\b/i},languages:{css:!0,less:!0,markup:{lang:"markup",before:"punctuation",inside:"inside",root:Prism.languages.markup&&Prism.languages.markup.tag.inside["attr-value"]},sass:[{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]},{lang:"sass",before:"operator",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]}],scss:!0,stylus:[{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"func",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},color:{create:function(){new Prism.plugins.Previewer("color",function(e){return this.style.backgroundColor="",this.style.backgroundColor=e,!!this.style.backgroundColor})},tokens:{color:[Prism.languages.css.hexcode].concat(Prism.languages.css.color)},languages:{css:!1,less:!0,markup:{lang:"markup",before:"punctuation",inside:"inside",root:Prism.languages.markup&&Prism.languages.markup.tag.inside["attr-value"]},sass:[{lang:"sass",before:"punctuation",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]},{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]}],scss:!1,stylus:[{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]}},easing:{create:function(){new Prism.plugins.Previewer("easing",function(e){var s=(e={linear:"0,0,1,1",ease:".25,.1,.25,1","ease-in":".42,0,1,1","ease-out":"0,0,.58,1","ease-in-out":".42,0,.58,1"}[e]||e).match(/-?\d*\.?\d+/g);if(4!==s.length)return!1;s=s.map(function(e,s){return 100*(s%2?1-e:e)}),this.querySelector("path").setAttribute("d","M0,100 C"+s[0]+","+s[1]+", "+s[2]+","+s[3]+", 100,0");var t=this.querySelectorAll("line");return t[0].setAttribute("x2",s[0]),t[0].setAttribute("y2",s[1]),t[1].setAttribute("x2",s[2]),t[1].setAttribute("y2",s[3]),!0},"*",function(){this._elt.innerHTML='<svg viewBox="-20 -20 140 140" width="100" height="100"><defs><marker id="prism-previewer-easing-marker" viewBox="0 0 4 4" refX="2" refY="2" markerUnits="strokeWidth"><circle cx="2" cy="2" r="1.5" /></marker></defs><path d="M0,100 C20,50, 40,30, 100,0" /><line x1="0" y1="100" x2="20" y2="50" marker-start="url(#prism-previewer-easing-marker)" marker-end="url(#prism-previewer-easing-marker)" /><line x1="100" y1="0" x2="40" y2="30" marker-start="url(#prism-previewer-easing-marker)" 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\ No newline at end of file