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fix: shifted dompurify.addhook functions inside removescript

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This commit is contained in:
Harshit Anand 2023-10-23 16:09:51 +05:30
parent 3f486ac0e1
commit 7960f94eba
1 changed files with 20 additions and 18 deletions
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38
packages/mermaid/src/diagrams/common/common.ts
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@ -25,26 +25,28 @@ export const getRows = (s?: string): string[] => {
* @returns The safer text * @returns The safer text
*/ */
export const removeScript = (txt: string): string => { export const removeScript = (txt: string): string => {
return DOMPurify.sanitize(txt); const TEMPORARY_ATTRIBUTE = 'data-temp-href-target';
};
const TEMPORARY_ATTRIBUTE = 'data-temp-href-target'; DOMPurify.addHook('beforeSanitizeAttributes', (node: Element) => {
if (node.tagName === 'A' && node.hasAttribute('target')) {
DOMPurify.addHook('beforeSanitizeAttributes', (node: Element) => { node.setAttribute(TEMPORARY_ATTRIBUTE, node.getAttribute('target') || '');
if (node.tagName === 'A' && node.hasAttribute('target')) {
node.setAttribute(TEMPORARY_ATTRIBUTE, node.getAttribute('target') || '');
}
});
DOMPurify.addHook('afterSanitizeAttributes', (node: Element) => {
if (node.tagName === 'A' && node.hasAttribute(TEMPORARY_ATTRIBUTE)) {
node.setAttribute('target', node.getAttribute(TEMPORARY_ATTRIBUTE) || '');
node.removeAttribute(TEMPORARY_ATTRIBUTE);
if (node.getAttribute('target') === '_blank') {
node.setAttribute('rel', 'noopener');
} }
} });
});
const sanitizedText = DOMPurify.sanitize(txt);
DOMPurify.addHook('afterSanitizeAttributes', (node: Element) => {
if (node.tagName === 'A' && node.hasAttribute(TEMPORARY_ATTRIBUTE)) {
node.setAttribute('target', node.getAttribute(TEMPORARY_ATTRIBUTE) || '');
node.removeAttribute(TEMPORARY_ATTRIBUTE);
if (node.getAttribute('target') === '_blank') {
node.setAttribute('rel', 'noopener');
}
}
});
return sanitizedText;
};
const sanitizeMore = (text: string, config: MermaidConfig) => { const sanitizeMore = (text: string, config: MermaidConfig) => {
if (config.flowchart?.htmlLabels !== false) { if (config.flowchart?.htmlLabels !== false) {