components/policy/core/common/cloud/user_info_fetcher.cc

   1 // Copyright (c) 2012 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/policy/core/common/cloud/user_info_fetcher.h"
   6
   7 #include "base/json/json_reader.h"
   8 #include "base/logging.h"
   9 #include "base/strings/stringprintf.h"
  10 #include "base/values.h"
  11 #include "google_apis/gaia/gaia_urls.h"
  12 #include "google_apis/gaia/google_service_auth_error.h"
  13 #include "net/base/load_flags.h"
  14 #include "net/http/http_status_code.h"
  15 #include "net/url_request/url_fetcher.h"
  16 #include "net/url_request/url_request_status.h"
  17 #include "url/gurl.h"
  18
  19 namespace {
  20
  21 static const char kAuthorizationHeaderFormat[] =
  22     "Authorization: Bearer %s";
  23
  24 static std::string MakeAuthorizationHeader(const std::string& auth_token) {
  25   return base::StringPrintf(kAuthorizationHeaderFormat, auth_token.c_str());
  26 }
  27
  28 }  // namespace
  29
  30 namespace policy {
  31
  32 UserInfoFetcher::UserInfoFetcher(Delegate* delegate,
  33                                  net::URLRequestContextGetter* context)
  34     : delegate_(delegate),
  35       context_(context) {
  36   DCHECK(delegate);
  37 }
  38
  39 UserInfoFetcher::~UserInfoFetcher() {
  40 }
  41
  42 void UserInfoFetcher::Start(const std::string& access_token) {
  43   // Create a URLFetcher and start it.
  44   url_fetcher_ =
  45       net::URLFetcher::Create(0, GaiaUrls::GetInstance()->oauth_user_info_url(),
  46                               net::URLFetcher::GET, this);
  47   url_fetcher_->SetRequestContext(context_);
  48   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
  49                              net::LOAD_DO_NOT_SAVE_COOKIES);
  50   url_fetcher_->AddExtraRequestHeader(MakeAuthorizationHeader(access_token));
  51   url_fetcher_->Start();  // Results in a call to OnURLFetchComplete().
  52 }
  53
  54 void UserInfoFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
  55   net::URLRequestStatus status = source->GetStatus();
  56   GoogleServiceAuthError error = GoogleServiceAuthError::AuthErrorNone();
  57   if (!status.is_success()) {
  58     if (status.status() == net::URLRequestStatus::CANCELED)
  59       error = GoogleServiceAuthError(GoogleServiceAuthError::REQUEST_CANCELED);
  60     else
  61       error = GoogleServiceAuthError::FromConnectionError(status.error());
  62   } else if (source->GetResponseCode() != net::HTTP_OK) {
  63     DLOG(WARNING) << "UserInfo request failed with HTTP code: "
  64                   << source->GetResponseCode();
  65     error = GoogleServiceAuthError(
  66         GoogleServiceAuthError::CONNECTION_FAILED);
  67   }
  68   if (error.state() != GoogleServiceAuthError::NONE) {
  69     delegate_->OnGetUserInfoFailure(error);
  70     return;
  71   }
  72
  73   // Successfully fetched userinfo from the server - parse it and hand it off
  74   // to the delegate.
  75   std::string unparsed_data;
  76   source->GetResponseAsString(&unparsed_data);
  77   DVLOG(1) << "Received UserInfo response: " << unparsed_data;
  78   scoped_ptr<base::Value> parsed_value = base::JSONReader::Read(unparsed_data);
  79   base::DictionaryValue* dict;
  80   if (parsed_value.get() && parsed_value->GetAsDictionary(&dict)) {
  81     delegate_->OnGetUserInfoSuccess(dict);
  82   } else {
  83     NOTREACHED() << "Could not parse userinfo response from server";
  84     delegate_->OnGetUserInfoFailure(GoogleServiceAuthError(
  85         GoogleServiceAuthError::CONNECTION_FAILED));
  86   }
  87 }
  88
  89 };  // namespace policy