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| 1 // Copyright (c) 2011 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/common/net/gaia/oauth2_access_token_fetcher.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/json/json_reader.h" | |
| 11 #include "base/stringprintf.h" | |
| 12 #include "base/values.h" | |
| 13 #include "chrome/common/net/gaia/gaia_urls.h" | |
| 14 #include "chrome/common/net/gaia/google_service_auth_error.h" | |
| 15 #include "chrome/common/net/http_return.h" | |
| 16 #include "net/base/escape.h" | |
| 17 #include "net/base/load_flags.h" | |
| 18 #include "net/url_request/url_request_context_getter.h" | |
| 19 #include "net/url_request/url_request_status.h" | |
| 20 | |
| 21 using content::URLFetcher; | |
| 22 using content::URLFetcherDelegate; | |
| 23 using net::ResponseCookies; | |
| 24 using net::URLRequestContextGetter; | |
| 25 using net::URLRequestStatus; | |
| 26 | |
| 27 namespace { | |
| 28 static const char kGetAccessTokenBodyFormat[] = | |
| 29 "client_id=%s&" | |
| 30 "client_secret=%s" | |
| 31 "grant_type=refresh_token&" | |
| 32 "refresh_token=%s"; | |
| 33 | |
| 34 static const char kAccessTokenKey[] = "access_token"; | |
| 35 | |
| 36 static bool GetStringFromDictionary(const DictionaryValue* dict, | |
| 37 const std::string& key, | |
| 38 std::string* value) { | |
| 39 Value* json_value; | |
| 40 if (!dict->Get(key, &json_value)) | |
| 41 return false; | |
| 42 if (json_value->GetType() != base::Value::TYPE_STRING) | |
| 43 return false; | |
| 44 | |
| 45 StringValue* json_str_value = static_cast<StringValue*>(json_value); | |
| 46 json_str_value->GetAsString(value); | |
| 47 return true; | |
| 48 } | |
| 49 | |
| 50 static GoogleServiceAuthError CreateAuthError(URLRequestStatus status) { | |
| 51 CHECK(!status.is_success()); | |
| 52 if (status.status() == URLRequestStatus::CANCELED) { | |
| 53 return GoogleServiceAuthError(GoogleServiceAuthError::REQUEST_CANCELED); | |
| 54 } else { | |
| 55 DLOG(WARNING) << "Could not reach Google Accounts servers: errno " | |
| 56 << status.error(); | |
| 57 return GoogleServiceAuthError::FromConnectionError(status.error()); | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 static URLFetcher* CreateFetcher(URLRequestContextGetter* getter, | |
| 62 const GURL& url, | |
| 63 const std::string& body, | |
| 64 URLFetcherDelegate* delegate) { | |
| 65 bool empty_body = body.empty(); | |
| 66 URLFetcher* result = URLFetcher::Create( | |
| 67 0, url, | |
| 68 empty_body ? URLFetcher::GET : URLFetcher::POST, | |
| 69 delegate); | |
| 70 | |
| 71 result->SetRequestContext(getter); | |
| 72 result->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | | |
| 73 net::LOAD_DO_NOT_SAVE_COOKIES); | |
| 74 | |
| 75 if (!empty_body) | |
| 76 result->SetUploadData("application/x-www-form-urlencoded", body); | |
| 77 | |
| 78 return result; | |
| 79 } | |
| 80 } // namespace | |
| 81 | |
| 82 OAuth2AccessTokenFetcher::OAuth2AccessTokenFetcher( | |
| 83 OAuth2AccessTokenConsumer* consumer, | |
| 84 URLRequestContextGetter* getter, | |
| 85 const std::string& source) | |
| 86 : consumer_(consumer), | |
| 87 getter_(getter), | |
| 88 source_(source), | |
| 89 state_(INITIAL) { } | |
| 90 | |
| 91 OAuth2AccessTokenFetcher::~OAuth2AccessTokenFetcher() { } | |
| 92 | |
| 93 void OAuth2AccessTokenFetcher::CancelRequest() { | |
| 94 fetcher_.reset(); | |
| 95 } | |
| 96 | |
| 97 void OAuth2AccessTokenFetcher::Start(const std::string& refresh_token) { | |
| 98 refresh_token_ = refresh_token; | |
| 99 StartGetAccessToken(); | |
| 100 } | |
| 101 | |
| 102 void OAuth2AccessTokenFetcher::StartGetAccessToken() { | |
| 103 CHECK_EQ(INITIAL, state_); | |
| 104 state_ = GET_ACCESS_TOKEN_STARTED; | |
| 105 fetcher_.reset(CreateFetcher( | |
| 106 getter_, | |
| 107 MakeGetAccessTokenUrl(), | |
| 108 MakeGetAccessTokenBody(refresh_token_), | |
| 109 this)); | |
| 110 fetcher_->Start(); // OnURLFetchComplete will be called. | |
| 111 } | |
| 112 | |
| 113 void OAuth2AccessTokenFetcher::EndGetAccessToken(const URLFetcher* source) { | |
| 114 CHECK_EQ(GET_ACCESS_TOKEN_STARTED, state_); | |
| 115 state_ = GET_ACCESS_TOKEN_DONE; | |
| 116 | |
| 117 URLRequestStatus status = source->GetStatus(); | |
| 118 if (!status.is_success()) { | |
| 119 ReportFailure(CreateAuthError(status)); | |
| 120 return; | |
| 121 } | |
| 122 | |
| 123 if (source->GetResponseCode() != RC_REQUEST_OK) { | |
| 124 ReportFailure(GoogleServiceAuthError( | |
| 125 GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS)); | |
| 126 return; | |
| 127 } | |
| 128 | |
| 129 // The request was successfully fetched and it returned OK. | |
| 130 // Parse out the access token. | |
| 131 std::string access_token; | |
| 132 if (!ParseGetAccessTokenResponse(source, &access_token)) { | |
| 133 ReportFailure(GoogleServiceAuthError( | |
| 134 GoogleServiceAuthError::UNEXPECTED_RESPONSE)); | |
| 135 return; | |
| 136 } | |
| 137 | |
| 138 ReportSuccess(access_token); | |
| 139 } | |
| 140 | |
| 141 void OAuth2AccessTokenFetcher::ReportSuccess(const std::string& access_token) { | |
| 142 consumer_->OnGetTokenSuccess(access_token); | |
| 143 } | |
| 144 | |
| 145 void OAuth2AccessTokenFetcher::ReportFailure(GoogleServiceAuthError error) { | |
| 146 state_ = ERROR_STATE; | |
| 147 consumer_->OnGetTokenFailure(error); | |
| 148 } | |
| 149 | |
| 150 void OAuth2AccessTokenFetcher::OnURLFetchComplete(const URLFetcher* source) { | |
| 151 CHECK(source); | |
| 152 CHECK(state_ == GET_ACCESS_TOKEN_STARTED); | |
| 153 EndGetAccessToken(source); | |
| 154 } | |
| 155 | |
| 156 // static | |
| 157 GURL OAuth2AccessTokenFetcher::MakeGetAccessTokenUrl() { | |
| 158 return GURL(GaiaUrls::GetInstance()->oauth2_token_url()); | |
| 159 } | |
| 160 | |
| 161 // static | |
| 162 std::string OAuth2AccessTokenFetcher::MakeGetAccessTokenBody( | |
| 163 const std::string& refresh_token) { | |
| 164 return StringPrintf( | |
| 165 kGetAccessTokenBodyFormat, | |
| 166 net::EscapeUrlEncodedData( | |
| 167 GaiaUrls::GetInstance()->oauth2_chrome_client_id(), true).c_str(), | |
| 168 net::EscapeUrlEncodedData( | |
| 169 GaiaUrls::GetInstance()->oauth2_chrome_client_secret(), | |
| 170 true).c_str(), | |
| 171 net::EscapeUrlEncodedData(refresh_token, true).c_str()); | |
| 172 } | |
| 173 | |
| 174 // static | |
| 175 bool OAuth2AccessTokenFetcher::ParseGetAccessTokenResponse( | |
| 176 const URLFetcher* source, | |
| 177 std::string* access_token) { | |
| 178 CHECK(source); | |
| 179 CHECK(access_token); | |
| 180 std::string data; | |
| 181 source->GetResponseAsString(&data); | |
| 182 base::JSONReader reader; | |
| 183 scoped_ptr<base::Value> value(reader.Read(data, false)); | |
| 184 if (!value.get() || value->GetType() != base::Value::TYPE_DICTIONARY) | |
| 185 return false; | |
| 186 | |
| 187 DictionaryValue* dict = static_cast<DictionaryValue*>(value.get()); | |
| 188 return GetStringFromDictionary(dict, kAccessTokenKey, access_token); | |
| 189 } | |
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Chromium Code Reviews
Issue 8669010:
Revert 111270 - Part 1 of work to do user sign in based on OAuth2: (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/