wekan/packages/markdown/src/template-integration.js
2020-11-10 22:01:04 -03:00

47 lines
1.5 KiB
JavaScript
Executable file

import sanitizeXss from 'xss';
var Markdown = require('markdown-it')({
html: true,
linkify: true,
typographer: true,
breaks: true,
});
// Additional safeAttrValue function to allow for other specific protocols
// See https://github.com/leizongmin/js-xss/issues/52#issuecomment-241354114
function mySafeAttrValue(tag, name, value, cssFilter) {
// only when the tag is 'a' and attribute is 'href'
// then use your custom function
if (tag === 'a' && name === 'href') {
// only filter the value if starts with 'cbthunderlink:' or 'aodroplink'
if (/^thunderlink:/ig.test(value) || /^cbthunderlink:/ig.test(value) || /^aodroplink:/ig.test(value)) {
return value;
}
else {
// use the default safeAttrValue function to process all non cbthunderlinks
return sanitizeXss.safeAttrValue(tag, name, value, cssFilter);
}
} else {
// use the default safeAttrValue function to process it
return sanitizeXss.safeAttrValue(tag, name, value, cssFilter);
}
};
var emoji = require('markdown-it-emoji');
Markdown.use(emoji);
if (Package.ui) {
const Template = Package.templating.Template;
const UI = Package.ui.UI;
const HTML = Package.htmljs.HTML;
const Blaze = Package.blaze.Blaze; // implied by `ui`
UI.registerHelper('markdown', new Template('markdown', function () {
const self = this;
let text = '';
if (self.templateContentBlock) {
text = Blaze._toText(self.templateContentBlock, HTML.TEXTMODE.STRING);
}
return HTML.Raw(sanitizeXss(Markdown.render(text), { safeAttrValue: mySafeAttrValue }));
}));
}