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#903 Allowing >,< and = characters in svg. Updating xss tests to handle both htmlLabels and non htmlLabels

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This commit is contained in:
Knut Sveidqvist
2019-12-07 12:19:45 +01:00
parent 9fe0aa0604
commit c2e5e94b37
6 changed files with 34 additions and 15 deletions
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21
cypress/integration/other/xss.spec.js
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@@ -9,8 +9,27 @@ describe('XSS', () => {
const url = mermaidUrl(str,{}, true);
cy.visit(url);
cy.wait(1000).then(()=>{
cy.get('.mermaid').should('exist');
});
cy.get('svg')
cy.percySnapshot()
// cy.percySnapshot()
})
it('should handle xss in tags in non-html mode', () => {
const str = 'eyJjb2RlIjoiXG5ncmFwaCBMUlxuICAgICAgQi0tPkQoPGltZyBvbmVycm9yPWxvY2F0aW9uPWBqYXZhc2NyaXB0XFx1MDAzYXhzc0F0dGFja1xcdTAwMjhkb2N1bWVudC5kb21haW5cXHUwMDI5YCBzcmM9eD4pOyIsIm1lcm1haWQiOnsidGhlbWUiOiJkZWZhdWx0IiwiZmxvd2NoYXJ0Ijp7Imh0bWxMYWJlbHMiOmZhbHNlfX19';
const url = mermaidUrl(str,{
"theme": "default",
"flowchart": {
"htmlMode": false
}
}, true);
cy.visit(url);
// cy.get('svg')
// cy.percySnapshot()
cy.get('.malware').should('not.exist');
})
})

13
cypress/platform/current.html
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@@ -9,14 +9,9 @@
<body>
<h1>info below</h1>
<div style="display: flex;">
<div class="mermaid">stateDiagram
[*] --> State1
State1 --> State2 : Transition 1
State1 --> State3 : Transition 2
State1 --> State4 : Transition 3
State1 --> State5 : Transition 4
State2 --> State3 : Transition 5
State1 --> [*]
<div class="mermaid">graph TD
A["a=b &&</b>"]
A["a=b && a>b</b>"]
</div>
</div>
<script src="./mermaid.js"></script>
@@ -26,7 +21,7 @@
// arrowMarkerAbsolute: true,
// themeCSS: '.node rect { fill: red; }',
logLevel: 3,
flowchart: { curve: 'linear' },
flowchart: { curve: 'linear', "htmlLabels": false },
gantt: { axisFormat: '%m/%d/%Y' },
sequence: { actorMargin: 50 },
// sequenceDiagram: { actorMargin: 300 } // deprecated

6
cypress/platform/viewer.js
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@@ -31,7 +31,6 @@ const contentLoaded = function() {
document.getElementsByTagName('body')[0].appendChild(div);
}
global.mermaid.initialize(graphObj.mermaid);
// console.log('graphObj.mermaid', graphObj.mermaid)
global.mermaid.init();
}
};
@@ -55,7 +54,7 @@ const contentLoadedApi = function() {
divs[i] = div;
}
global.mermaid.initialize(graphObj.mermaid);
mermaid2.initialize(graphObj.mermaid);
for (let i = 0; i < numCodes; i++) {
mermaid2.render(
@@ -74,8 +73,9 @@ const contentLoadedApi = function() {
div.id = 'block';
div.className = 'mermaid';
// div.innerHTML = graphObj.code
console.warn('graphObj.mermaid', graphObj.mermaid);
document.getElementsByTagName('body')[0].appendChild(div);
global.mermaid.initialize(graphObj.mermaid);
mermaid2.initialize(graphObj.mermaid);
mermaid2.render(
'newid',

5
cypress/platform/xss.html
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@@ -28,7 +28,10 @@
div.id = 'the-malware'
div.className = 'malware'
div.innerHTML = 'XSS Succeeded'
document.getElementsByTagName('body')[0].appendChild(div)
document.getElementsByTagName('body')[0].appendChild(div);
// const el = document.querySelector('.mermaid');
// el.parentNode.removeChild(el);
throw new Error('XSS Succeded');
}
</script>
</head>

2
src/diagrams/flowchart/flowDb.js
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@@ -22,7 +22,7 @@ let funs = [];
const sanitize = text => {
let txt = text;
if (config.securityLevel !== 'loose') {
if (config.securityLevel !== 'loose' && config.flowchart.htmlLabels) { // eslint-disable-line
txt = txt.replace(/<br>/g, '#br#');
txt = txt.replace(/<br\S*?\/>/g, '#br#');
txt = txt.replace(/</g, '&lt;').replace(/>/g, '&gt;');

2
src/mermaid.js
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@@ -30,6 +30,7 @@ import { logger } from './logger';
*/
const init = function() {
const conf = mermaidAPI.getConfig();
console.warn('mermaid conf', conf);
logger.debug('Starting rendering diagrams');
let nodes;
if (arguments.length >= 2) {
@@ -116,6 +117,7 @@ const init = function() {
};
const initialize = function(config) {
console.warn('Initializing mermaid ', config);
logger.debug('Initializing mermaid ');
if (typeof config.mermaid !== 'undefined') {
if (typeof config.mermaid.startOnLoad !== 'undefined') {