clean up links

bubble-server/src/main/resources/bubble/rule/social/block/site/FB.js.hbs

@@ -206,6 +206,19 @@ function {{JS_PREFIX}}_should_block(blocked_users, article) {
     return false;
 }
 
+function {{JS_PREFIX}}_remove_param(href, param) {
+    const cid = href.indexOf(param+'=');
+    if (cid !== -1) {
+        const regex = new RegExp('&?'+param+'=[^?&]+', 'g');
+        href = href.replace(regex, '');
+        const qPos = href.indexOf('?');
+        if (href[qPos+1] === '&') {
+            href = href.substring(0, qPos) + href.substring(qPos+2);
+        }
+    }
+    return href;
+}
+
 function {{JS_PREFIX}}_apply_blocks(blocked_users) {
 
     const mobile = {{JS_PREFIX}}_mobile;
@@ -223,5 +236,23 @@ function {{JS_PREFIX}}_apply_blocks(blocked_users) {
         if (authorName) {
             {{JS_PREFIX}}_remove_article(article, authorName === true ? null : authorName);
         }
+        Array.from(article.getElementsByTagName('a')).forEach(a => {
+            let href =  a.href;
+            if (href.indexOf('facebook.com') !== -1 && href.indexOf('u=http') !== -1) {
+                const uPos = href.indexOf('u=http');
+                const andPos = href.indexOf('&');
+                if (andPos !== -1) {
+                    href = href.substring(uPos + 2, andPos);
+                } else {
+                    href = href.substring(uPos + 2);
+                }
+                href = decodeURIComponent(href);
+            }
+            href = {{JS_PREFIX}}_remove_param(href, 'fbclid');
+            href = {{JS_PREFIX}}_remove_param(href, '_ft_');
+            href = {{JS_PREFIX}}_remove_param(href, '__tn__');
+            href = {{JS_PREFIX}}_remove_param(href, 'refid');
+            a.href = href;
+        });
     }
 }