[polymer] Merge of master into polymer10-migration

netlog_viewer/proxy_view.js

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * This view displays information on the proxy setup:
+ *
+ *   - Shows the current proxy settings.
+ *   - Has a button to reload these settings.
+ *   - Shows the list of proxy hostnames that are cached as "bad".
+ *   - Has a button to clear the cached bad proxies.
+ */
+var ProxyView = (function() {
+  'use strict';
+
+  // We inherit from DivView.
+  var superClass = DivView;
+
+  /**
+   * @constructor
+   */
+  function ProxyView() {
+    assertFirstConstructorCall(ProxyView);
+
+    // Call superclass's constructor.
+    superClass.call(this, ProxyView.MAIN_BOX_ID);
+
+    // Hook up the UI components.
+    $(ProxyView.RELOAD_SETTINGS_BUTTON_ID).onclick =
+        g_browser.sendReloadProxySettings.bind(g_browser);
+    $(ProxyView.CLEAR_BAD_PROXIES_BUTTON_ID).onclick =
+        g_browser.sendClearBadProxies.bind(g_browser);
+
+    // Register to receive proxy information as it changes.
+    g_browser.addProxySettingsObserver(this, true);
+    g_browser.addBadProxiesObserver(this, true);
+  }
+
+  ProxyView.TAB_ID = 'tab-handle-proxy';
+  ProxyView.TAB_NAME = 'Proxy';
+  ProxyView.TAB_HASH = '#proxy';
+
+  // IDs for special HTML elements in proxy_view.html
+  ProxyView.MAIN_BOX_ID = 'proxy-view-tab-content';
+  ProxyView.ORIGINAL_SETTINGS_DIV_ID = 'proxy-view-original-settings';
+  ProxyView.EFFECTIVE_SETTINGS_DIV_ID = 'proxy-view-effective-settings';
+  ProxyView.ORIGINAL_CONTENT_DIV_ID = 'proxy-view-original-content';
+  ProxyView.EFFECTIVE_CONTENT_DIV_ID = 'proxy-view-effective-content';
+  ProxyView.RELOAD_SETTINGS_BUTTON_ID = 'proxy-view-reload-settings';
+  ProxyView.BAD_PROXIES_DIV_ID = 'proxy-view-bad-proxies-div';
+  ProxyView.BAD_PROXIES_TBODY_ID = 'proxy-view-bad-proxies-tbody';
+  ProxyView.CLEAR_BAD_PROXIES_BUTTON_ID = 'proxy-view-clear-bad-proxies';
+  ProxyView.SOCKS_HINTS_DIV_ID = 'proxy-view-socks-hints';
+  ProxyView.SOCKS_HINTS_FLAG_DIV_ID = 'proxy-view-socks-hints-flag';
+
+  cr.addSingletonGetter(ProxyView);
+
+  ProxyView.prototype = {
+    // Inherit the superclass's methods.
+    __proto__: superClass.prototype,
+
+    onLoadLogFinish: function(data) {
+      return this.onProxySettingsChanged(data.proxySettings) &&
+             this.onBadProxiesChanged(data.badProxies);
+    },
+
+    onProxySettingsChanged: function(proxySettings) {
+      $(ProxyView.ORIGINAL_SETTINGS_DIV_ID).innerHTML = '';
+      $(ProxyView.EFFECTIVE_SETTINGS_DIV_ID).innerHTML = '';
+      this.updateSocksHints_(null);
+
+      if (!proxySettings)
+        return false;
+
+      // Both |original| and |effective| are dictionaries describing the
+      // settings.
+      var original = proxySettings.original;
+      var effective = proxySettings.effective;
+
+      var originalStr = proxySettingsToString(original);
+      var effectiveStr = proxySettingsToString(effective);
+
+      setNodeDisplay($(ProxyView.ORIGINAL_CONTENT_DIV_ID),
+                     originalStr != effectiveStr);
+
+      $(ProxyView.ORIGINAL_SETTINGS_DIV_ID).innerText = originalStr;
+      $(ProxyView.EFFECTIVE_SETTINGS_DIV_ID).innerText = effectiveStr;
+
+      this.updateSocksHints_(effective);
+
+      return true;
+    },
+
+    onBadProxiesChanged: function(badProxies) {
+      $(ProxyView.BAD_PROXIES_TBODY_ID).innerHTML = '';
+      setNodeDisplay($(ProxyView.BAD_PROXIES_DIV_ID),
+                     badProxies && badProxies.length > 0);
+
+      if (!badProxies)
+        return false;
+
+      // Add a table row for each bad proxy entry.
+      for (var i = 0; i < badProxies.length; ++i) {
+        var entry = badProxies[i];
+        var badUntilDate = timeutil.convertTimeTicksToDate(entry.bad_until);
+
+        var tr = addNode($(ProxyView.BAD_PROXIES_TBODY_ID), 'tr');
+
+        var nameCell = addNode(tr, 'td');
+        var badUntilCell = addNode(tr, 'td');
+
+        addTextNode(nameCell, entry.proxy_uri);
+        timeutil.addNodeWithDate(badUntilCell, badUntilDate);
+      }
+      return true;
+    },
+
+    updateSocksHints_: function(proxySettings) {
+      setNodeDisplay($(ProxyView.SOCKS_HINTS_DIV_ID), false);
+
+      if (!proxySettings)
+        return;
+
+      var socksProxy = getSingleSocks5Proxy_(proxySettings.single_proxy);
+      if (!socksProxy)
+        return;
+
+      // Suggest a recommended --host-resolver-rules.
+      // NOTE: This does not compensate for any proxy bypass rules. If the
+      // proxy settings include proxy bypasses the user may need to expand the
+      // exclusions for host resolving.
+      var hostResolverRules = 'MAP * ~NOTFOUND , EXCLUDE ' + socksProxy.host;
+      var hostResolverRulesFlag = '--host-resolver-rules="' +
+                                  hostResolverRules + '"';
+
+      // TODO(eroman): On Linux the ClientInfo.command_line is wrong in that it
+      // doesn't include any quotes around the parameters. This means the
+      // string search above is going to fail :(
+      if (ClientInfo.command_line &&
+          ClientInfo.command_line.indexOf(hostResolverRulesFlag) != -1) {
+        // Chrome is already using the suggested resolver rules.
+        return;
+      }
+
+      $(ProxyView.SOCKS_HINTS_FLAG_DIV_ID).innerText = hostResolverRulesFlag;
+      setNodeDisplay($(ProxyView.SOCKS_HINTS_DIV_ID), true);
+    }
+  };
+
+  function getSingleSocks5Proxy_(proxyList) {
+    var proxyString;
+    if (typeof proxyList == 'string') {
+      // Older versions of Chrome passed single_proxy as a string.
+      // TODO(eroman): This behavior changed in M27. Support for older logs can
+      //               safely be removed circa M29.
+      proxyString = proxyList;
+    } else if (Array.isArray(proxyList) && proxyList.length == 1) {
+      proxyString = proxyList[0];
+    } else {
+      return null;
+    }
+
+    var pattern = /^socks5:\/\/(.*)$/;
+    var matches = pattern.exec(proxyString);
+
+    if (!matches)
+      return null;
+
+    var hostPortString = matches[1];
+
+    matches = /^(.*):(\d+)$/.exec(hostPortString);
+    if (!matches)
+      return null;
+
+    var result = {host: matches[1], port: matches[2]};
+
+    // Strip brackets off of IPv6 literals.
+    matches = /^\[(.*)\]$/.exec(result.host);
+    if (matches)
+      result.host = matches[1];
+
+    return result;
+  }
+
+  return ProxyView;
+})();
+