src/components/autofill/content/browser/wallet/wallet_signin_helper.cc

   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 "components/autofill/content/browser/wallet/wallet_signin_helper.h"
   6
   7 #include "base/callback_helpers.h"
   8 #include "base/json/json_reader.h"
   9 #include "base/logging.h"
  10 #include "base/rand_util.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/stringprintf.h"
  13 #include "base/time/time.h"
  14 #include "base/values.h"
  15 #include "components/autofill/content/browser/wallet/wallet_service_url.h"
  16 #include "components/autofill/content/browser/wallet/wallet_signin_helper_delegate.h"
  17 #include "content/public/browser/browser_thread.h"
  18 #include "google_apis/gaia/google_service_auth_error.h"
  19 #include "net/base/escape.h"
  20 #include "net/cookies/canonical_cookie.h"
  21 #include "net/cookies/cookie_monster.h"
  22 #include "net/cookies/cookie_options.h"
  23 #include "net/cookies/cookie_store.h"
  24 #include "net/url_request/url_fetcher.h"
  25 #include "net/url_request/url_request_context.h"
  26 #include "net/url_request/url_request_context_getter.h"
  27
  28 namespace autofill {
  29 namespace wallet {
  30
  31 namespace {
  32
  33 const char kWalletCookieName[] = "gdtoken";
  34
  35 // Callback for retrieving Google Wallet cookies. |callback| is passed the
  36 // retrieved cookies and posted back to the UI thread. |cookies| is any Google
  37 // Wallet cookies.
  38 void GetGoogleCookiesCallback(
  39     const base::Callback<void(const std::string&)>& callback,
  40     const net::CookieList& cookies) {
  41   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
  42
  43   // Cookies for parent domains will also be returned; we only want cookies with
  44   // exact host matches. TODO(estade): really?
  45   std::string host = wallet::GetPassiveAuthUrl(0).host();
  46   std::string wallet_cookie;
  47   for (size_t i = 0; i < cookies.size(); ++i) {
  48     if (LowerCaseEqualsASCII(cookies[i].Name(), kWalletCookieName) &&
  49         LowerCaseEqualsASCII(cookies[i].Domain(), host.c_str())) {
  50       wallet_cookie = cookies[i].Value();
  51       break;
  52     }
  53   }
  54   content::BrowserThread::PostTask(content::BrowserThread::UI,
  55                                    FROM_HERE,
  56                                    base::Bind(callback, wallet_cookie));
  57 }
  58
  59 // Gets Google Wallet cookies. Must be called on the IO thread.
  60 // |request_context_getter| is a getter for the current request context.
  61 // |callback| is called when retrieving cookies is completed.
  62 void GetGoogleCookies(
  63     scoped_refptr<net::URLRequestContextGetter> request_context_getter,
  64     const base::Callback<void(const std::string&)>& callback) {
  65   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
  66
  67   net::URLRequestContext* url_request_context =
  68       request_context_getter->GetURLRequestContext();
  69   net::CookieStore* cookie_store = url_request_context ?
  70       url_request_context->cookie_store() : NULL;
  71   net::CookieMonster* cookie_monster = cookie_store ?
  72       cookie_store->GetCookieMonster() : NULL;
  73   if (!cookie_monster) {
  74     content::BrowserThread::PostTask(content::BrowserThread::UI,
  75                                      FROM_HERE,
  76                                      base::Bind(callback, std::string()));
  77     return;
  78   }
  79
  80   net::CookieOptions cookie_options;
  81   cookie_options.set_include_httponly();
  82   cookie_monster->GetAllCookiesForURLWithOptionsAsync(
  83       wallet::GetPassiveAuthUrl(0).GetWithEmptyPath(),
  84       cookie_options,
  85       base::Bind(&GetGoogleCookiesCallback, callback));
  86 }
  87
  88 }  // namespace
  89
  90 WalletSigninHelper::WalletSigninHelper(
  91     WalletSigninHelperDelegate* delegate,
  92     net::URLRequestContextGetter* getter)
  93     : delegate_(delegate),
  94       getter_(getter),
  95       weak_ptr_factory_(this) {
  96   DCHECK(delegate_);
  97 }
  98
  99 WalletSigninHelper::~WalletSigninHelper() {
 100 }
 101
 102 void WalletSigninHelper::StartPassiveSignin(size_t user_index) {
 103   DCHECK(!url_fetcher_);
 104
 105   const GURL& url = wallet::GetPassiveAuthUrl(user_index);
 106   url_fetcher_.reset(net::URLFetcher::Create(
 107       0, url, net::URLFetcher::GET, this));
 108   url_fetcher_->SetRequestContext(getter_);
 109   url_fetcher_->Start();
 110 }
 111
 112 void WalletSigninHelper::StartWalletCookieValueFetch() {
 113   scoped_refptr<net::URLRequestContextGetter> request_context(getter_);
 114   if (!request_context.get()) {
 115     ReturnWalletCookieValue(std::string());
 116     return;
 117   }
 118
 119   base::Callback<void(const std::string&)> callback = base::Bind(
 120       &WalletSigninHelper::ReturnWalletCookieValue,
 121       weak_ptr_factory_.GetWeakPtr());
 122
 123   base::Closure task = base::Bind(&GetGoogleCookies, request_context, callback);
 124   content::BrowserThread::PostTask(content::BrowserThread::IO, FROM_HERE, task);
 125 }
 126
 127 void WalletSigninHelper::OnServiceError(const GoogleServiceAuthError& error) {
 128   delegate_->OnPassiveSigninFailure(error);
 129 }
 130
 131 void WalletSigninHelper::OnOtherError() {
 132   OnServiceError(GoogleServiceAuthError::AuthErrorNone());
 133 }
 134
 135 void WalletSigninHelper::OnURLFetchComplete(
 136     const net::URLFetcher* fetcher) {
 137   DCHECK_EQ(url_fetcher_.get(), fetcher);
 138   scoped_ptr<net::URLFetcher> url_fetcher(url_fetcher_.release());
 139
 140   if (!fetcher->GetStatus().is_success() ||
 141       fetcher->GetResponseCode() < 200 ||
 142       fetcher->GetResponseCode() >= 300) {
 143     DVLOG(1) << "URLFetchFailure:"
 144              << " r=" << fetcher->GetResponseCode()
 145              << " s=" << fetcher->GetStatus().status()
 146              << " e=" << fetcher->GetStatus().error();
 147     OnOtherError();
 148     return;
 149   }
 150
 151   std::string data;
 152   if (!fetcher->GetResponseAsString(&data)) {
 153     DVLOG(1) << "failed to GetResponseAsString";
 154     OnOtherError();
 155     return;
 156   }
 157
 158   if (!LowerCaseEqualsASCII(data, "yes")) {
 159     OnServiceError(
 160         GoogleServiceAuthError(GoogleServiceAuthError::USER_NOT_SIGNED_UP));
 161     return;
 162   }
 163
 164   delegate_->OnPassiveSigninSuccess();
 165 }
 166
 167 void WalletSigninHelper::ReturnWalletCookieValue(
 168     const std::string& cookie_value) {
 169   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 170
 171   delegate_->OnDidFetchWalletCookieValue(cookie_value);
 172 }
 173
 174 }  // namespace wallet
 175 }  // namespace autofill