1 files changed, 113 insertions, 0 deletions
diff --git a/src/js/scriptlets/subscriber.js b/src/js/scriptlets/subscriber.js
new file mode 100644
index 0000000..ea7b209
--- /dev/null
+++ b/src/js/scriptlets/subscriber.js
@@ -0,0 +1,113 @@
+/*******************************************************************************
+
+    uBlock Origin - a comprehensive, efficient content blocker
+    Copyright (C) 2015-present Raymond Hill
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see {http://www.gnu.org/licenses/}.
+
+    Home: https://github.com/gorhill/uBlock
+*/
+
+/* global HTMLDocument */
+
+'use strict';
+
+/******************************************************************************/
+
+// Injected into specific web pages, those which have been pre-selected
+// because they are known to contains `abp:subscribe` links.
+
+/******************************************************************************/
+
+(( ) => {
+// >>>>> start of local scope
+
+/******************************************************************************/
+
+// https://github.com/chrisaljoudi/uBlock/issues/464
+if ( document instanceof HTMLDocument === false ) { return; }
+
+// Maybe uBO has gone away meanwhile.
+if ( typeof vAPI !== 'object' || vAPI === null ) { return; }
+
+const onMaybeSubscriptionLinkClicked = function(target) {
+    if ( vAPI instanceof Object === false ) {
+        document.removeEventListener('click', onMaybeSubscriptionLinkClicked);
+        return;
+    }
+
+    try {
+        // https://github.com/uBlockOrigin/uBlock-issues/issues/763#issuecomment-691696716
+        //   Remove replacement patch if/when filterlists.com fixes encoded '&'.
+        const subscribeURL = new URL(
+            target.href.replace('&amp;title=', '&title=')
+        );
+        if (
+            /^(abp|ubo):$/.test(subscribeURL.protocol) === false &&
+            subscribeURL.hostname !== 'subscribe.adblockplus.org'
+        ) {
+            return;
+        }
+        const location = subscribeURL.searchParams.get('location') || '';
+        const title = subscribeURL.searchParams.get('title') || '';
+        if ( location === '' || title === '' ) { return true; }
+        // https://github.com/uBlockOrigin/uBlock-issues/issues/1797
+        if ( /^(file|https?):\/\//.test(location) === false ) { return true; }
+        vAPI.messaging.send('scriptlets', {
+            what: 'subscribeTo',
+            location,
+            title,
+        });
+        return true;
+    } catch (_) {
+    }
+};
+
+// https://github.com/easylist/EasyListHebrew/issues/89
+//   Ensure trusted events only.
+
+document.addEventListener('click', ev => {
+    if ( ev.button !== 0 || ev.isTrusted === false ) { return; }
+    const target = ev.target.closest('a');
+    if ( target instanceof HTMLAnchorElement === false ) { return; }
+    if ( onMaybeSubscriptionLinkClicked(target) === true ) {
+        ev.stopPropagation();
+        ev.preventDefault();
+    }
+});
+
+/******************************************************************************/
+
+// <<<<< end of local scope
+})();
+
+
+
+
+
+
+
+
+/*******************************************************************************
+
+    DO NOT:
+    - Remove the following code
+    - Add code beyond the following code
+    Reason:
+    - https://github.com/gorhill/uBlock/pull/3721
+    - uBO never uses the return value from injected content scripts
+
+**/
+
+void 0;