signin_promo.cc revision 68043e1e95eeb07d5cae7aca370b26518b0867d6 
1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/signin/signin_promo.h"
6
7#include "base/command_line.h"
8#include "base/prefs/pref_service.h"
9#include "base/strings/string_number_conversions.h"
10#include "base/strings/string_util.h"
11#include "base/strings/stringprintf.h"
12#include "base/strings/utf_string_conversions.h"
13#include "chrome/browser/browser_process.h"
14#include "chrome/browser/first_run/first_run.h"
15#include "chrome/browser/google/google_util.h"
16#include "chrome/browser/profiles/profile.h"
17#include "chrome/browser/profiles/profile_info_cache.h"
18#include "chrome/browser/profiles/profile_manager.h"
19#include "chrome/browser/signin/signin_manager.h"
20#include "chrome/browser/signin/signin_manager_factory.h"
21#include "chrome/browser/sync/profile_sync_service.h"
22#include "chrome/browser/sync/profile_sync_service_factory.h"
23#include "chrome/browser/ui/webui/options/core_options_handler.h"
24#include "chrome/browser/ui/webui/theme_source.h"
25#include "chrome/common/chrome_switches.h"
26#include "chrome/common/net/url_util.h"
27#include "chrome/common/pref_names.h"
28#include "chrome/common/url_constants.h"
29#include "components/user_prefs/pref_registry_syncable.h"
30#include "content/public/browser/url_data_source.h"
31#include "content/public/browser/web_contents.h"
32#include "content/public/browser/web_ui.h"
33#include "content/public/browser/web_ui_data_source.h"
34#include "google_apis/gaia/gaia_urls.h"
35#include "grit/browser_resources.h"
36#include "grit/generated_resources.h"
37#include "grit/theme_resources.h"
38#include "net/base/escape.h"
39#include "net/base/network_change_notifier.h"
40#include "net/base/url_util.h"
41#include "ui/base/l10n/l10n_util.h"
42
43using content::WebContents;
44
45namespace {
46
47const char kSignInPromoQueryKeyAutoClose[] = "auto_close";
48const char kSignInPromoQueryKeyContinue[] = "continue";
49const char kSignInPromoQueryKeySource[] = "source";
50
51// Gaia cannot support about:blank as a continue URL, so using a hosted blank
52// page instead.
53const char kSignInLandingUrlPrefix[] =
54    "https://www.google.com/intl/%s/chrome/blank.html";
55
56// The maximum number of times we want to show the sign in promo at startup.
57const int kSignInPromoShowAtStartupMaximum = 10;
58
59// Forces the web based signin flow when set.
60bool g_force_web_based_signin_flow = false;
61
62// Checks we want to show the sign in promo for the given brand.
63bool AllowPromoAtStartupForCurrentBrand() {
64  std::string brand;
65  google_util::GetBrand(&brand);
66
67  if (brand.empty())
68    return true;
69
70  if (google_util::IsInternetCafeBrandCode(brand))
71    return false;
72
73  // Enable for both organic and distribution.
74  return true;
75}
76
77// Returns true if a user has seen the sign in promo at startup previously.
78bool HasShownPromoAtStartup(Profile* profile) {
79  return profile->GetPrefs()->HasPrefPath(prefs::kSignInPromoStartupCount);
80}
81
82// Returns true if the user has previously skipped the sign in promo.
83bool HasUserSkippedPromo(Profile* profile) {
84  return profile->GetPrefs()->GetBoolean(prefs::kSignInPromoUserSkipped);
85}
86
87}  // namespace
88
89namespace signin {
90
91bool ShouldShowPromo(Profile* profile) {
92#if defined(OS_CHROMEOS)
93  // There's no need to show the sign in promo on cros since cros users are
94  // already logged in.
95  return false;
96#else
97
98  // Don't bother if we don't have any kind of network connection.
99  if (net::NetworkChangeNotifier::IsOffline())
100    return false;
101
102  // Don't show for managed profiles.
103  if (profile->IsManaged())
104    return false;
105
106  // Display the signin promo if the user is not signed in.
107  SigninManager* signin = SigninManagerFactory::GetForProfile(
108      profile->GetOriginalProfile());
109  return !signin->AuthInProgress() && signin->IsSigninAllowed() &&
110      signin->GetAuthenticatedUsername().empty();
111#endif
112}
113
114bool ShouldShowPromoAtStartup(Profile* profile, bool is_new_profile) {
115  DCHECK(profile);
116
117  // Don't show if the profile is an incognito.
118  if (profile->IsOffTheRecord())
119    return false;
120
121  if (!ShouldShowPromo(profile))
122    return false;
123
124  if (!is_new_profile) {
125    if (!HasShownPromoAtStartup(profile))
126      return false;
127  }
128
129  if (HasUserSkippedPromo(profile))
130    return false;
131
132  // For Chinese users skip the sign in promo.
133  if (g_browser_process->GetApplicationLocale() == "zh-CN")
134    return false;
135
136  PrefService* prefs = profile->GetPrefs();
137  int show_count = prefs->GetInteger(prefs::kSignInPromoStartupCount);
138  if (show_count >= kSignInPromoShowAtStartupMaximum)
139    return false;
140
141  // This pref can be set in the master preferences file to allow or disallow
142  // showing the sign in promo at startup.
143  if (prefs->HasPrefPath(prefs::kSignInPromoShowOnFirstRunAllowed))
144    return prefs->GetBoolean(prefs::kSignInPromoShowOnFirstRunAllowed);
145
146  // For now don't show the promo for some brands.
147  if (!AllowPromoAtStartupForCurrentBrand())
148    return false;
149
150  // Default to show the promo for Google Chrome builds.
151#if defined(GOOGLE_CHROME_BUILD)
152  return true;
153#else
154  return false;
155#endif
156}
157
158void DidShowPromoAtStartup(Profile* profile) {
159  int show_count = profile->GetPrefs()->GetInteger(
160      prefs::kSignInPromoStartupCount);
161  show_count++;
162  profile->GetPrefs()->SetInteger(prefs::kSignInPromoStartupCount, show_count);
163}
164
165void SetUserSkippedPromo(Profile* profile) {
166  profile->GetPrefs()->SetBoolean(prefs::kSignInPromoUserSkipped, true);
167}
168
169GURL GetLandingURL(const char* option, int value) {
170  const std::string& locale = g_browser_process->GetApplicationLocale();
171  std::string url = base::StringPrintf(kSignInLandingUrlPrefix, locale.c_str());
172  base::StringAppendF(&url, "?%s=%d", option, value);
173  return GURL(url);
174}
175
176GURL GetPromoURL(Source source, bool auto_close) {
177  DCHECK_NE(SOURCE_UNKNOWN, source);
178
179  // Build a Gaia-based URL that can be used to sign the user into chrome.
180  // There are required request parameters:
181  //
182  //  - tell Gaia which service the user is signing into.  In this case,
183  //    a chrome sign in uses the service "chromiumsync"
184  //  - provide a continue URL.  This is the URL that Gaia will redirect to
185  //    once the sign is complete.
186  //
187  // The continue URL includes a source parameter that can be extracted using
188  // the function GetSourceForSignInPromoURL() below.  This is used to know
189  // which of the chrome sign in access points was used to sign the user in.
190  // It is also parsed for the |auto_close| flag, which indicates that the tab
191  // must be closed after sync setup is successful.
192  // See OneClickSigninHelper for details.
193  std::string query_string = "?service=chromiumsync&sarp=1";
194
195  std::string continue_url = GetLandingURL(kSignInPromoQueryKeySource,
196                                           static_cast<int>(source)).spec();
197  if (auto_close)
198    base::StringAppendF(&continue_url, "&%s=1", kSignInPromoQueryKeyAutoClose);
199
200  base::StringAppendF(&query_string, "&%s=%s", kSignInPromoQueryKeyContinue,
201                      net::EscapeQueryParamValue(
202                          continue_url, false).c_str());
203
204  return GaiaUrls::GetInstance()->service_login_url().Resolve(query_string);
205}
206
207GURL GetNextPageURLForPromoURL(const GURL& url) {
208  std::string value;
209  if (net::GetValueForKeyInQuery(url, kSignInPromoQueryKeyContinue, &value))
210    return GURL(value);
211
212  return GURL();
213}
214
215Source GetSourceForPromoURL(const GURL& url) {
216  std::string value;
217  if (net::GetValueForKeyInQuery(url, kSignInPromoQueryKeySource, &value)) {
218    int source = 0;
219    if (base::StringToInt(value, &source) && source >= SOURCE_START_PAGE &&
220        source < SOURCE_UNKNOWN) {
221      return static_cast<Source>(source);
222    }
223  }
224  return SOURCE_UNKNOWN;
225}
226
227bool IsAutoCloseEnabledInURL(const GURL& url) {
228  std::string value;
229  if (net::GetValueForKeyInQuery(url, kSignInPromoQueryKeyAutoClose, &value)) {
230    int enabled = 0;
231    if (base::StringToInt(value, &enabled) && enabled == 1)
232      return true;
233  }
234  return false;
235}
236
237bool IsContinueUrlForWebBasedSigninFlow(const GURL& url) {
238  GURL::Replacements replacements;
239  replacements.ClearQuery();
240  const std::string& locale = g_browser_process->GetApplicationLocale();
241  return url.ReplaceComponents(replacements) ==
242      GURL(base::StringPrintf(kSignInLandingUrlPrefix, locale.c_str()));
243}
244
245void ForceWebBasedSigninFlowForTesting(bool force) {
246  g_force_web_based_signin_flow = force;
247}
248
249void RegisterProfilePrefs(
250    user_prefs::PrefRegistrySyncable* registry) {
251  registry->RegisterIntegerPref(
252      prefs::kSignInPromoStartupCount,
253      0,
254      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
255  registry->RegisterBooleanPref(
256      prefs::kSignInPromoUserSkipped,
257      false,
258      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
259  registry->RegisterBooleanPref(
260      prefs::kSignInPromoShowOnFirstRunAllowed,
261      true,
262      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
263  registry->RegisterBooleanPref(
264      prefs::kSignInPromoShowNTPBubble,
265      false,
266      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
267}
268
269}  // namespace signin
270