From 4a5607a395e12a8937a64e248cc1892303b61a5f Mon Sep 17 00:00:00 2001
From: Holly <undergroundmonorail@gmail.com>
Date: Sun, 9 May 2021 04:12:30 +0000
Subject: [PATCH] add script template

---
 remote_instance_actions.user.js | 79 +++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 remote_instance_actions.user.js

diff --git a/remote_instance_actions.user.js b/remote_instance_actions.user.js
new file mode 100644
index 0000000..984f5fb
--- /dev/null
+++ b/remote_instance_actions.user.js
@@ -0,0 +1,79 @@
+// ==UserScript==
+// @name         Remote Instance Actions
+// @namespace    https://hollymcfarland.com
+// @version      1.0
+// @description  Easily limit a remote instance from your Mastodon instance via the timeline
+// @author       monorail
+<?php
+    foreach ($_GET["instances"] as $instance) {
+        echo "// @match        https://*.{$instance}/web/*" . PHP_EOL;
+    }
+?>
+// @grant        GM_openInTab
+// @run-at       context-menu
+// ==/UserScript==
+
+(function() {
+    'use strict';
+
+    // Check whether the domain is already limited on the instance, and open the relevant form if not
+    // This is imperfect, it just does a search of limited domains in the admin backend
+    // This means it handles substrings weirdly, and interacts weirdly with suspending subdomains
+    // But there's an override so it's not so bad
+    function checkStatus(domain, callback) {
+        let url = `https://${window.location.host}/admin/instances?utf8=%E2%9C%93&limited=1&by_domain=${domain}`;
+        let request = new XMLHttpRequest();
+        request.open('GET', url);
+
+        request.addEventListener('load', function() {
+            if (request.response.includes("You don&#39;t have permission to view this page.")) {
+                alert("You are not logged in to an administrator account.");
+                return;
+            }
+            if (request.response.includes("No domains found.") || confirm(`${domain} may already be limited. Continue anyway?`)) {
+                callback(domain);
+            }
+        });
+
+        request.send();
+    }
+
+    // Open a new tab to the form for applying moderation actions to the selected domain
+    function newBlock(domain) {
+        GM_openInTab(`https://${window.location.host}/admin/domain_blocks/new?_domain=${domain}`, false);
+    }
+
+    // Clean up the selected domain
+    function sanitize(domain) {
+        // clear out accidental whitespace
+        domain = domain.trim();
+
+        // in case a full link was provided
+        domain = domain.replace(/https?:\/\//, "");
+
+        // in case the domain is being copied from a user@domain string
+        domain = domain.split("@").slice(-1)[0];
+
+        // in case the domain has a path included
+        domain = domain.split("/")[0];
+
+        return domain;
+    }
+
+    // Make sure a domain was actually selected
+    // This is imperfect, but can be overridden in case of a false negative
+    function validate(domain) {
+        // For now just check for a domain + tld and no whitespace
+        return domain.includes(".") && !domain.match(/\s/);
+    }
+
+    let domain = sanitize(document.getSelection().toString());
+    if (!domain.trim()) {
+        alert("Nothing selected.");
+        return;
+    }
+
+    if (validate(domain) || confirm(`Are you sure you meant to select "${domain}"?`)) {
+        checkStatus(domain, newBlock);
+    }
+})();