Promisifed syncWithPac, added error reports

2024-11-27 20:03:45 +03:00 · 2016-01-27 01:05:21 +05:00 · 2016-01-27 01:05:21 +05:00 · 7c4e78efac
commit 7c4e78efac
parent 6c2b2eba30
3 changed files with 96 additions and 25 deletions
--- a/extensions/chromium/minimalistic-pac-setter/extnesion/pages/choose-pac-provider/index.html
+++ b/extensions/chromium/minimalistic-pac-setter/extnesion/pages/choose-pac-provider/index.html
@ -25,12 +25,14 @@
      .link-button, .link-button:visited {
        color: #0000EE;
        text-decoration: none;
-        display: none;
      }
      .link-button:hover {
        text-decoration: underline;
      }
-      input:checked ~ .link-button {
+      .checked-radio-panel {
+        display: none;
+      }
+      input:checked ~ .checked-radio-panel {
        display: inline;
      }
      .button-panel {
--- a/extensions/chromium/minimalistic-pac-setter/extnesion/pages/choose-pac-provider/index.js
+++ b/extensions/chromium/minimalistic-pac-setter/extnesion/pages/choose-pac-provider/index.js
@ -5,8 +5,12 @@ renderPage();
 function renderPage() {
  console.log('Rendering started.');

+  function getStatus() {
+    return document.querySelector('#status');
+  }
+
  function setStatusTo(msg) {
-    var status = document.querySelector('#status');
+    var status = getStatus();
    if (msg) {
      status.classList.remove('off');
      status.innerHTML = msg;
@ -21,7 +25,7 @@ function renderPage() {
    // SET DATE

    function setDate() {
-      var dateForUser = '...';
+      var dateForUser = 'никогда';
      if( antiCensorRu.lastPacUpdateStamp ) {
        var diff = Date.now() - antiCensorRu.lastPacUpdateStamp;
        var units = ' мс';
@ -76,7 +80,7 @@ function renderPage() {
    var _firstChild = ul.firstChild;
    for( var providerKey of Object.keys(antiCensorRu.pacProviders) ) {
      var li = document.createElement('li');
-      li.innerHTML = '<input type="radio" name="pacProvider" id="'+providerKey+'"> <label for="'+providerKey+'">'+providerKey+'</label> <a href class="link-button">[обновить]</a>';
+      li.innerHTML = '<input type="radio" name="pacProvider" id="'+providerKey+'"> <label for="'+providerKey+'">'+providerKey+'</label> <a href class="link-button checked-radio-panel">[обновить]</a>';
      li.querySelector('.link-button').onclick = () => {triggerChosenProvider(); return false;};
      ul.insertBefore( li, _firstChild );
    }
@ -97,8 +101,39 @@ function renderPage() {

        enableDisableInputs();
        setStatusTo('Установка...');
-        antiCensorRu.installPac(pacKey, () => {
-          setStatusTo('PAC-скрипт установлен.');
+        antiCensorRu.installPac(pacKey, err => {
+          if (err) {
+            var ifNotCritical = err.clarification && err.clarification.ifNotCritical;
+
+            var message = '';
+            var clarification = err.clarification;
+            do {
+              message = message +' '+ (clarification && clarification.message || err.message || '');
+              clarification = clarification.prev;
+            } while( clarification && clarification.prev );
+            message = message.trim();
+
+            message = '<span style="font-size: 0.9em; color: darkred">'+ message +'</span>';
+            var label = ifNotCritical ? 'Некритичная ошибка.' : 'Ошибка!';
+            label = '<span style="color:red">'+ label +'</span>';
+            setStatusTo(
+              label +'<br/>'+ message +' <a href class="link-button">[Ещё подробнее]</a>'
+            );
+            var btn = getStatus().querySelector('.link-button');
+            btn.onclick = function() {
+              var div = document.createElement('div');
+              div.innerHTML = '\
+Более подробную информацию можно узнать из логов фоновой страницы:<br/>\
+<a href class="ext">chrome://extensions</a> › Это расширение › Отладка страниц: фоновая страница › Console (DevTools)';
+              getStatus().replaceChild(div, this);
+              div.querySelector('.ext').onclick = () => {
+                chrome.tabs.create({ url: "chrome://extensions" });
+                return false;
+              }
+              return false;
+            };
+          } else
+            setStatusTo('PAC-скрипт установлен.');
          enableDisableInputs();
        });
      }
--- a/extensions/chromium/minimalistic-pac-setter/extnesion/sync-pac-script-with-pac-provider.js
+++ b/extensions/chromium/minimalistic-pac-setter/extnesion/sync-pac-script-with-pac-provider.js
@ -80,19 +80,34 @@ window.antiCensorRu = {
  lastPacUpdateStamp: 0,

  syncWithPacProvider(cb) {
-    setPacScriptFromProvider(
-      this.pacProvider,
-      err => {
-        if (!err)
+    var cb = cb || (() => {});
+
+    var pacSetPromise = new Promise(
+      (resolve, reject) => setPacScriptFromProvider(
+        this.pacProvider,
+        (err, res) => {
+          if (err)
+            return reject(err);
          this.lastPacUpdateStamp = Date.now();
-        updatePacProxyIps(
-          this.pacProvider,
-          () => {
-						this.ifFirstInstall = false;
-						this.pushToStorage(cb)
-					}
-      )}
-    )
+          this.ifFirstInstall = false;
+          return resolve(res);
+        }
+      )
+    );
+
+    return updatePacProxyIps(
+      this.pacProvider,
+      ipsError => {
+        if (ipsError && ipsError.clarification)
+          ipsError.clarification.ifNotCritical = true;
+        pacSetPromise.then(
+          res => this.pushToStorage(
+            pushError => pushError ? cb(pushError) : cb(ipsError, res)
+          ),
+          err => cb(err)
+        )
+      }
+    );
  },

  _periodicUpdateAlarmReason: 'Периодичное обновление PAC-скрипта Антизапрет',
@ -191,18 +206,24 @@ function asyncLogGroup() {
  }
 }

+function ifSuccessfulCode(status) {
+  return status >= 200 && status < 300 || status === 304;
+}
+
 function httpGet(url, cb) {
  var cb = cb || (() => {});
  var req = new XMLHttpRequest();
  var ifAsync = true;
  req.open('GET', url, ifAsync);
  req.onload = event => {
-    if (req.status !== 200)
-      return cb(event);
+    if (!ifSuccessfulCode(req.status)) {
+      req.clarification = {message: 'Получен ответ с неудачным HTTP-кодом '+req.status+ '.'};
+      return cb(req);
+    }
    console.log('GETed with success.');
    return cb(null, req.responseText)
  };
-  req.onerror = cb;
+  req.onerror = event => { event.clarification = {message: 'Что-то не так с сетью, проверьте соединение.'}; return cb(event); };
  req.send();
 }

@ -212,6 +233,10 @@ function updatePacProxyIps(provider, cb) {
    return cb(null, null);
  }
  var cb = asyncLogGroup('Getting IP for '+ provider.proxyHosts.join(', ') +'...', cb);
+  var failure = {
+    clarification: {message:'Не удалось получить один или несколько IP адресов для прокси-серверов. Иконка для уведомления об обходе блокировок может не отображаться.'},
+    errors: {}
+  };
  var i = 0;
  for (var proxyHost of provider.proxyHosts) {
    httpGet(
@ -220,9 +245,13 @@ function updatePacProxyIps(provider, cb) {
        if (!err) {
          provider.proxyIps = provider.proxyIps || {};
  				provider.proxyIps[ JSON.parse(res).answer[0].rdata ] = true;
+        } else
+          failure.errors[proxyHost] = err;
+
+        if ( ++i == provider.proxyHosts.length ) {
+          failure = Object.keys(failure.errors).length ? failure : null;
+          return cb(failure, provider.proxyIps);
        }
-        if ( ++i == provider.proxyHosts.length )
-          return cb(err, 'Complete.');
      }
    );
  }
@ -234,8 +263,13 @@ function setPacScriptFromProvider(provider, cb) {
  httpGet(
    provider.pacUrl,
    (err, res) => {
-      if (err)
+      if (err) {
+        err.clarification = {
+          message: 'Не удалось скачать PAC-скрипт с адреса: ' +provider.pacUrl+ '.',
+          prev: err.clarification
+        };
        return cb(err);
+      }
      console.log('Clearing chrome proxy settings...');
      return chrome.proxy.settings.clear({}, () => {
           var config = {