Refactor markdown/sanitize html code

1 files changed, 21 insertions, 0 deletions

diff --git a/shared/core-utils/renderer/html.ts b/shared/core-utils/renderer/html.ts
new file mode 100644
index 000000000..37ae5147c
--- /dev/null
+++ b/shared/core-utils/renderer/html.ts
@@ -0,0 +1,21 @@
+export const SANITIZE_OPTIONS = {
+  allowedTags: [ 'a', 'p', 'span', 'br', 'strong', 'em', 'ul', 'ol', 'li' ],
+  allowedSchemes: [ 'http', 'https' ],
+  allowedAttributes: {
+    a: [ 'href', 'class', 'target', 'rel' ]
+  },
+  transformTags: {
+    a: (tagName, attribs) => {
+      let rel = 'noopener noreferrer'
+      if (attribs.rel === 'me') rel += ' me'
+
+      return {
+        tagName,
+        attribs: Object.assign(attribs, {
+          target: '_blank',
+          rel
+        })
+      }
+    }
+  }
+}