我有一个网站，我想向所有访问者显示我的 Google Analytics(分析)帐户中的一些数据(来自不同国家/地区的独特页面浏览量)。据我所知，使用 OAuth 2.0 和 Google Analytics API 可以做到这一点。我希望身份验证是自动化的，这样任何访问我网站的人都可以查看这些数据，而不仅仅是我可以登录到我的 Google Analytics 帐户。

我做了什么

• 使用 Google Developers Console 创建了一个项目。
• 将 Analytics API 更改为 ON。
• 创建了一个服务帐户。
• 为服务器应用程序和浏览器应用程序生成了 API key (不知道确切使用哪个以及在何处使用)。
• 下载了适用于 PHP 的 Google API 客户端库。
• 上传了我在创建服务帐户时下载的 .p12 key ，将其上传到我的网站并链接到 google-api-php-client-master/examples/service-account.php.
• 在 google-api-php-client-master/examples/service-account.php 中声明了我的服务帐户客户端 ID。

当前代码

<?php
/*
 * Copyright 2013 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
session_start();
include_once "templates/base.php";

/************************************************
  Make an API request authenticated with a service
  account.
 ************************************************/
set_include_path("../src/" . PATH_SEPARATOR . get_include_path());
require_once 'Google/Client.php';
require_once 'Google/Service/Books.php';

/************************************************
  ATTENTION: Fill in these values! You can get
  them by creating a new Service Account in the
  API console. Be sure to store the key file
  somewhere you can get to it - though in real
  operations you'd want to make sure it wasn't
  accessible from the webserver!
  The name is the email address value provided
  as part of the service account (not your
  address!)
  Make sure the Books API is enabled on this
  account as well, or the call will fail.
 ************************************************/
$client_id = 'SECRET-NUMBERS.apps.googleusercontent.com';
$service_account_name = '';
$key_file_location = 'SOMENUMBERS-privatekey.p12';

echo pageHeader("Service Account Access");
if ($client_id == 'SECRET-NUMBERS.apps.googleusercontent.com'
    || !strlen($service_account_name)
    || !strlen($key_file_location)) {
  echo missingServiceAccountDetailsWarning();
}

$client = new Google_Client();
$client->setApplicationName("Client_Library_Examples");
$service = new Google_Service_Books($client);

/************************************************
  If we have an access token, we can carry on.
  Otherwise, we'll get one with the help of an
  assertion credential. In other examples the list
  of scopes was managed by the Client, but here
  we have to list them manually. We also supply
  the service account
 ************************************************/
if (isset($_SESSION['service_token'])) {
  $client->setAccessToken($_SESSION['service_token']);
}
$key = file_get_contents($key_file_location);
$cred = new Google_Auth_AssertionCredentials(
    $service_account_name,
    array('https://www.googleapis.com/auth/analytics.readonly'),
    $key
);
$client->setAssertionCredentials($cred);
if($client->getAuth()->isAccessTokenExpired()) {
  $client->getAuth()->refreshTokenWithAssertion($cred);
}
$_SESSION['service_token'] = $client->getAccessToken();

/************************************************
  We're just going to make the same call as in the
  simple query as an example.
 ************************************************/
$optParams = array('filter' => 'free-ebooks');
$results = $service->volumes->listVolumes('Henry David Thoreau', $optParams);
echo "<h3>Results Of Call:</h3>";
foreach ($results as $item) {
  echo $item['volumeInfo']['title'], "<br /> \n";
}

echo pageFooter(__FILE__);

问题

• 在 google-api-php-client-master/examples/service-account.php 中有一段我不太明白的代码:

  $service_account_name = '';

我应该在这里声明什么？

• 当我完成上述所有操作并在我的网站上加载页面 google-api-php-client-master/examples/service-account.php 时，我收到以下两个错误:

Warning: You need to set Client ID, Email address and the location of the Key from the Google API console

Fatal error: Uncaught exception 'Google_Auth_Exception' with message 'Error refreshing the OAuth2 token, message: '{ "error" : "invalid_grant" }'' in /home/texterx1/public_html/google-api-php-client-master/src/Google/Auth/OAuth2.php:327 Stack trace: #0 /home/texterx1/public_html/google-api-php-client-master/src/Google/Auth/OAuth2.php(289): Google_Auth_OAuth2->refreshTokenRequest(Array) #1 /home/texterx1/public_html/google-api-php-client-master/examples/service-account.php(75): Google_Auth_OAuth2->refreshTokenWithAssertion(Object(Google_Auth_AssertionCredentials)) #2 {main} thrown in /home/texterx1/public_html/google-api-php-client-master/src/Google/Auth/OAuth2.php on line 327

我做错了什么？

最佳答案

好的，您需要做的第一件事是在开发者控制台上为您的应用程序获取与应用程序一起创建的电子邮件地址。

1046123799103-nk421gjc2v8mlr2qnmmqaak04ntb1dbp@developer.gserviceaccount.com

登录到您的 GA，转到您希望服务帐户访问的帐户的管理部分。您需要在帐户级别为该电子邮件帐户授予访问权限，只允许他们阅读和分析。

<?php
session_start();
require_once 'Google/Client.php';
require_once 'Google/Service/Analytics.php';
// Values from APIs console for your app    
$client_id = 'Client ID';
$service_account_name = 'Email address';
$key_file_location = 'The file you downloaded';

$client = new Google_Client();
$client->setApplicationName("Client_Library_Examples");
if (isset($_SESSION['service_token'])) {
        $client->setAccessToken($_SESSION['service_token']);
    }
    $key = file_get_contents($key_file_location);

    $cred = new Google_Auth_AssertionCredentials(
        $service_account_name,
        array('https://www.googleapis.com/auth/analytics.readonly'),
        $key
        );
    $client->setAssertionCredentials($cred);
    if($client->getAuth()->isAccessTokenExpired()) {
        $client->getAuth()->refreshTokenWithAssertion($cred);
    }
    $_SESSION['service_token'] = $client->getAccessToken();
    $service = new Google_Service_Analytics($client);  
    $accounts = $service->management_accountSummaries->listManagementAccountSummaries();

   foreach ($accounts->getItems() as $item) {
    echo "Account: ",$item['name'], "  " , $item['id'], "<br /> \n";

    foreach($item->getWebProperties() as $wp) {
    echo '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;WebProperty: ' ,$wp['name'], "  " , $wp['id'], "<br /> \n";    

    $views = $wp->getProfiles();
    if (!is_null($views)) {
    foreach($wp->getProfiles() as $view) {
        //  echo '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;View: ' ,$view['name'], "  " , $view['id'], "<br /> \n";    
    }
                }
            }
        }

关于php - 无法使用 PHP 连接到 OAuth 2.0，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23660192/