publisher-uaproxy-banner: red bar and Connect button on publisher pages when the UA proxy is down

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-19 11:15:06 +02:00
parent abdcb59a3a
commit c88781a406
3 changed files with 192 additions and 0 deletions
@@ -0,0 +1,129 @@
+// ==UserScript==
+// @name         Algemeen: UA-proxy waarschuwing op uitgeverspagina's
+// @namespace    https://github.com/glgoose/ua-userscripts
+// @version      1.0.0
+// @description  Rode balk op uitgeverspagina's als de UA-proxy uit staat, met een knop om te verbinden.
+// @author       glgoose
+// @license      GPL-3.0-or-later
+// @homepageURL  https://github.com/glgoose/ua-userscripts/tree/main/scripts/publisher-uaproxy-banner
+// @supportURL   https://github.com/glgoose/ua-userscripts/issues
+// @match        *://*.tandfonline.com/*
+// @match        *://*.taylorfrancis.com/*
+// @match        *://*.sagepub.com/*
+// @match        *://*.wiley.com/*
+// @match        *://*.oup.com/*
+// @match        *://*.sciencedirect.com/*
+// @match        *://*.elsevier.com/*
+// @match        *://*.cambridge.org/*
+// @match        *://*.jstor.org/*
+// @match        *://*.springer.com/*
+// @match        *://*.springernature.com/*
+// @match        *://*.nature.com/*
+// @match        *://*.degruyter.com/*
+// @match        *://*.degruyterbrill.com/*
+// @match        *://*.brill.com/*
+// @match        *://*.muse.jhu.edu/*
+// @match        *://*.journals.uchicago.edu/*
+// @match        *://*.annualreviews.org/*
+// @match        *://*.emerald.com/*
+// @match        *://*.direct.mit.edu/*
+// @match        *://*.psycnet.apa.org/*
+// @match        *://*.ingentaconnect.com/*
+// @match        *://*.bloomsburycollections.com/*
+// @run-at       document-idle
+// @connect      127.0.0.1
+// @grant        GM_xmlhttpRequest
+// @grant        GM_getValue
+// @grant        GM_setValue
+// ==/UserScript==
+(function () {
+  'use strict';
+
+  var BASE = 'http://127.0.0.1:18088';
+  var POLL_MS = 3000;
+  // uaproxyd fills in {{TOKEN}} when it serves this file; the dev-stub route has no token, so
+  // the first click on Connect asks for it once and keeps it in Tampermonkey storage.
+  var BAKED = '{{TOKEN}}';
+  var token = BAKED.charAt(0) === '{' ? GM_getValue('token', '') : BAKED;
+
+  var bar = null, text = null, btn = null, timer = null;
+
+  function request(method, path, cb) {
+    GM_xmlhttpRequest({
+      method: method,
+      url: BASE + path,
+      headers: method === 'POST' ? { 'X-UA-Token': token } : {},
+      timeout: 4000,
+      onload: function (r) {
+        var j = null;
+        try { j = JSON.parse(r.responseText); } catch (e) { /* not JSON */ }
+        cb(r.status, j);
+      },
+      onerror: function () { cb(0, null); },
+      ontimeout: function () { cb(0, null); },
+    });
+  }
+
+  // The bar is built once at its final size and never changes height or button width, so
+  // state changes only swap text (single line, truncated).
+  function build() {
+    bar = document.createElement('div');
+    text = document.createElement('span');
+    btn = document.createElement('button');
+    btn.textContent = 'Connect';
+    btn.style.cssText =
+      'margin-left:12px;min-width:96px;padding:2px 12px;border:1px solid #fff;border-radius:4px;' +
+      'background:transparent;color:#fff;font:inherit;font-weight:600;cursor:pointer';
+    btn.addEventListener('click', connect);
+    bar.append(text, btn);
+    bar.style.cssText =
+      'position:fixed;top:0;left:0;right:0;z-index:2147483647;padding:8px 16px;' +
+      'background:#b3261e;color:#fff;font:14px/1.4 -apple-system,system-ui,sans-serif;' +
+      'text-align:center;box-shadow:0 1px 4px rgba(0,0,0,.3);white-space:nowrap;overflow:hidden;' +
+      'text-overflow:ellipsis';
+    document.documentElement.appendChild(bar);
+  }
+
+  function render(s) {
+    var state = s && s.state;
+    if (state === 'up') { hide(); return; }
+    if (!bar) build();
+    var base = 'UA proxy down: this page loaded without UA access, so a Zotero save gets no PDF.';
+    if (!s) {
+      text.textContent = 'uaproxyd is not running: this page loaded without UA access.';
+      btn.disabled = true;
+    } else if (state === 'connecting') {
+      text.textContent = s.mfa ? 'Enter ' + s.mfa + ' in the Authenticator app.' : 'Connecting to the UA proxy.';
+      btn.disabled = true;
+    } else {
+      text.textContent = s.error ? base + ' ' + s.error : base;
+      btn.disabled = false;
+    }
+    btn.textContent = state === 'connecting' ? 'Connecting' : 'Connect';
+  }
+
+  function hide() {
+    if (bar) { bar.remove(); bar = null; }
+    if (timer) { clearInterval(timer); timer = null; }
+  }
+
+  function poll() {
+    request('GET', '/status', function (code, j) { render(code === 200 ? j : null); });
+  }
+
+  function connect() {
+    if (!token) {
+      token = (window.prompt('uaproxyd token (cat ~/.local/share/uaproxyd/token):') || '').trim();
+      if (!token) return;
+      GM_setValue('token', token);
+    }
+    btn.disabled = true;
+    request('POST', '/connect', function (code, j) {
+      if (code === 403) { token = ''; GM_setValue('token', ''); }
+      render(code === 202 ? j : null);
+    });
+  }
+
+  poll();
+  timer = setInterval(poll, POLL_MS);
+})();