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less aggressive html sanitize

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Kibi Kelburton
2026-06-12 03:02:00 +02:00
parent 8b29ee6722
commit f06a7ffe55
3 changed files with 42 additions and 15 deletions
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19
views/about.html
View File

@@ -12,6 +12,19 @@
function escapeHtml(str) { function escapeHtml(str) {
return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;').replace(/'/g,'&#39;'); return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;').replace(/'/g,'&#39;');
} }
function sanitizeHtml(html) {
var tmp = document.createElement('div');
tmp.innerHTML = html;
tmp.querySelectorAll('script,iframe,object,embed,form,input,button,select,meta,link,base,style').forEach(function(el) { el.remove(); });
tmp.querySelectorAll('*').forEach(function(node) {
Array.from(node.attributes).forEach(function(attr) {
if (/^on/i.test(attr.name) || (attr.name === 'href' && /^javascript:/i.test(attr.value.trim()))) {
node.removeAttribute(attr.name);
}
});
});
return tmp.innerHTML;
}
function render() { function render() {
if (raw && el && typeof marked !== 'undefined') { if (raw && el && typeof marked !== 'undefined') {
var bytes = Uint8Array.from(atob(raw.textContent.trim()), function(c) { return c.charCodeAt(0); }); var bytes = Uint8Array.from(atob(raw.textContent.trim()), function(c) { return c.charCodeAt(0); });
@@ -26,11 +39,7 @@
var escaped = escapeHtml(typeof code === 'object' ? (code.text || '') : code); var escaped = escapeHtml(typeof code === 'object' ? (code.text || '') : code);
return '<code>' + escaped + '</code>'; return '<code>' + escaped + '</code>';
}; };
renderer.html = function(html) { el.innerHTML = sanitizeHtml(marked.parse(text, { gfm: true, breaks: true, renderer: renderer }));
var content = typeof html === 'object' ? (html.text || '') : html;
return escapeHtml(content);
};
el.innerHTML = marked.parse(text, { gfm: true, breaks: true, renderer: renderer });
} }
} }
if (typeof marked !== 'undefined') { if (typeof marked !== 'undefined') {

19
views/rules.html
View File

@@ -12,6 +12,19 @@
function escapeHtml(str) { function escapeHtml(str) {
return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;').replace(/'/g,'&#39;'); return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;').replace(/'/g,'&#39;');
} }
function sanitizeHtml(html) {
var tmp = document.createElement('div');
tmp.innerHTML = html;
tmp.querySelectorAll('script,iframe,object,embed,form,input,button,select,meta,link,base,style').forEach(function(el) { el.remove(); });
tmp.querySelectorAll('*').forEach(function(node) {
Array.from(node.attributes).forEach(function(attr) {
if (/^on/i.test(attr.name) || (attr.name === 'href' && /^javascript:/i.test(attr.value.trim()))) {
node.removeAttribute(attr.name);
}
});
});
return tmp.innerHTML;
}
function render() { function render() {
if (raw && el && typeof marked !== 'undefined') { if (raw && el && typeof marked !== 'undefined') {
var bytes = Uint8Array.from(atob(raw.textContent.trim()), function(c) { return c.charCodeAt(0); }); var bytes = Uint8Array.from(atob(raw.textContent.trim()), function(c) { return c.charCodeAt(0); });
@@ -26,11 +39,7 @@
var escaped = escapeHtml(typeof code === 'object' ? (code.text || '') : code); var escaped = escapeHtml(typeof code === 'object' ? (code.text || '') : code);
return '<code>' + escaped + '</code>'; return '<code>' + escaped + '</code>';
}; };
renderer.html = function(html) { el.innerHTML = sanitizeHtml(marked.parse(text, { gfm: true, breaks: true, renderer: renderer }));
var content = typeof html === 'object' ? (html.text || '') : html;
return escapeHtml(content);
};
el.innerHTML = marked.parse(text, { gfm: true, breaks: true, renderer: renderer });
} }
} }
if (typeof marked !== 'undefined') { if (typeof marked !== 'undefined') {

19
views/terms.html
View File

@@ -12,6 +12,19 @@
function escapeHtml(str) { function escapeHtml(str) {
return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;').replace(/'/g,'&#39;'); return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;').replace(/'/g,'&#39;');
} }
function sanitizeHtml(html) {
var tmp = document.createElement('div');
tmp.innerHTML = html;
tmp.querySelectorAll('script,iframe,object,embed,form,input,button,select,meta,link,base,style').forEach(function(el) { el.remove(); });
tmp.querySelectorAll('*').forEach(function(node) {
Array.from(node.attributes).forEach(function(attr) {
if (/^on/i.test(attr.name) || (attr.name === 'href' && /^javascript:/i.test(attr.value.trim()))) {
node.removeAttribute(attr.name);
}
});
});
return tmp.innerHTML;
}
function render() { function render() {
if (raw && el && typeof marked !== 'undefined') { if (raw && el && typeof marked !== 'undefined') {
var bytes = Uint8Array.from(atob(raw.textContent.trim()), function(c) { return c.charCodeAt(0); }); var bytes = Uint8Array.from(atob(raw.textContent.trim()), function(c) { return c.charCodeAt(0); });
@@ -26,11 +39,7 @@
var escaped = escapeHtml(typeof code === 'object' ? (code.text || '') : code); var escaped = escapeHtml(typeof code === 'object' ? (code.text || '') : code);
return '<code>' + escaped + '</code>'; return '<code>' + escaped + '</code>';
}; };
renderer.html = function(html) { el.innerHTML = sanitizeHtml(marked.parse(text, { gfm: true, breaks: true, renderer: renderer }));
var content = typeof html === 'object' ? (html.text || '') : html;
return escapeHtml(content);
};
el.innerHTML = marked.parse(text, { gfm: true, breaks: true, renderer: renderer });
} }
} }
if (typeof marked !== 'undefined') { if (typeof marked !== 'undefined') {