Moved XMPP notifier library from chrome/browser/sync to chrome/common....

chrome/browser/sync/notifier/communicator/connection_settings.cc

-// Copyright (c) 2009 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.
-
-#include <algorithm>
-#include <deque>
-#include <string>
-#include <vector>
-
-#include "chrome/browser/sync/notifier/communicator/connection_settings.h"
-#include "talk/base/helpers.h"
-#include "talk/xmpp/xmppclientsettings.h"
-
-namespace notifier {
-
-class RandomGenerator {
- public:
-  int operator()(int ceiling) {
-    return static_cast<int>(cricket::CreateRandomId() % ceiling);
-  }
-};
-
-void ConnectionSettings::FillXmppClientSettings(
-    buzz::XmppClientSettings* xcs) const {
-  assert(xcs);
-  xcs->set_protocol(protocol_);
-  xcs->set_server(server_);
-  xcs->set_proxy(proxy_.type);
-  if (proxy_.type != talk_base::PROXY_NONE) {
-    xcs->set_proxy_host(proxy_.address.IPAsString());
-    xcs->set_proxy_port(proxy_.address.port());
-  }
-  if ((proxy_.type != talk_base::PROXY_NONE) && !proxy_.username.empty()) {
-    xcs->set_use_proxy_auth(true);
-    xcs->set_proxy_user(proxy_.username);
-    xcs->set_proxy_pass(proxy_.password);
-  } else {
-    xcs->set_use_proxy_auth(false);
-  }
-}
-
-void ConnectionSettingsList::AddPermutations(const std::string& hostname,
-                                             const std::vector<uint32>& iplist,
-                                             int16 port,
-                                             bool special_port_magic,
-                                             bool proxy_only) {
-  // randomize the list. This ensures the iplist isn't always
-  // evaluated in the order returned by DNS
-  std::vector<uint32> iplist_random = iplist;
-  RandomGenerator rg;
-  std::random_shuffle(iplist_random.begin(), iplist_random.end(), rg);
-
-  // Put generated addresses in a new deque, then append on the list_, since
-  // there are order dependencies and AddPermutations() may be called more
-  // than once.
-  std::deque<ConnectionSettings> list_temp;
-
-  // Permute addresses for this server. In some cases we haven't resolved the
-  // to ip addresses.
-  talk_base::SocketAddress server(hostname, port, false);
-  if (iplist_random.empty()) {
-    // We couldn't pre-resolve the hostname, so let's hope it will resolve
-    // further down the pipeline (by a proxy, for example).
-    PermuteForAddress(server, special_port_magic, proxy_only, &list_temp);
-  } else {
-    // Generate a set of possibilities for each server address.
-    // Don't do permute duplicates.
-    for (size_t index = 0; index < iplist_random.size(); ++index) {
-      if (std::find(iplist_seen_.begin(), iplist_seen_.end(),
-                    iplist_random[index]) != iplist_seen_.end()) {
-        continue;
-      }
-      iplist_seen_.push_back(iplist_random[index]);
-      server.SetResolvedIP(iplist_random[index]);
-      PermuteForAddress(server, special_port_magic, proxy_only, &list_temp);
-    }
-  }
-
-  // Add this list to the instance list
-  while (list_temp.size() != 0) {
-    list_.push_back(list_temp[0]);
-    list_temp.pop_front();
-  }
-}
-
-
-void ConnectionSettingsList::PermuteForAddress(
-    const talk_base::SocketAddress& server,
-    bool special_port_magic,
-    bool proxy_only,
-    std::deque<ConnectionSettings>* list_temp) {
-  assert(list_temp);
-  *(template_.mutable_server()) = server;
-
-  // Use all of the original settings
-  list_temp->push_back(template_);
-
-  // Try alternate port
-  if (special_port_magic) {
-    ConnectionSettings settings(template_);
-    settings.set_protocol(cricket::PROTO_SSLTCP);
-    settings.mutable_server()->SetPort(443);
-    // HTTPS proxies usually require port 443, so try it first
-    if ((template_.proxy().type == talk_base::PROXY_HTTPS) ||
-        (template_.proxy().type == talk_base::PROXY_UNKNOWN)) {
-      list_temp->push_front(settings);
-    } else {
-      list_temp->push_back(settings);
-    }
-  }
-
-  if (!proxy_only) {
-    // Try without the proxy
-    if (template_.proxy().type != talk_base::PROXY_NONE) {
-      ConnectionSettings settings(template_);
-      settings.mutable_proxy()->type = talk_base::PROXY_NONE;
-      list_temp->push_back(settings);
-
-      if (special_port_magic) {
-        settings.set_protocol(cricket::PROTO_SSLTCP);
-        settings.mutable_server()->SetPort(443);
-        list_temp->push_back(settings);
-      }
-    }
-  }
-}
-}  // namespace notifier