Gmail API：尝试发送电子邮件时出现400个错误的请求（PHP代码）

问题描述

我期望下面的代码发送电子邮件，但我只是得到这个：

我得到 200确定使用Google Developers Console 。对于一个或多个API范围，您必须输入
https://mail.google.com/，http：// /www.googleapis.com/auth/gmail.modify,https://www.googleapis.com/auth/gmail.compose,https://www.googleapis.com/auth/gmail.send

安装完成后，可以发送邮件，只需修改代码即可：

  $ results = $ service-> users_messages-> send（me，$ msg）; 
  

将不起作用，因为'我'引用了服务帐户，该帐户无法发送邮件（往上看）。
将 me 替换为发送邮件的帐户的用户标识（邮件地址）：

  $ results = $ service-> users_messages-> send（[email protected]，$ msg）; 
  

然后，您需要添加

  $ cred-> sub ='[email protected]'; 
  

以下

  $ cred = new \Google_Auth_AssertionCredentials（
 $ service_account_name，
 array（'https://www.googleapis.com/auth/gmail.send'，'https：// www。 googleapis.com/auth/gmail.compose'），
 $ key 
）; 
  

请注意 $ message 应该是在 try ... catch -Block。

中 $ msg

下面，您会发现我的完整工作代码：

 <？php 
 require_once realpath（dirname（__ FILE__）。'/../src/Google/autoload.php'）; 
 $ client_id ='* censored * .apps.googleusercontent.com'; 
 $ service_account_name ='*censored*@developer.gserviceaccount.com'; 
 $ key_file_location ='/tmp/apiKey.p12'; 
 
 
 $ userid_from ='* censored *'; 
 $ client = new \Google_Client（）; 
 $ client-> setApplicationName（Client_Library_Examples）; 
 
 
 //嗯，真的不知道这些行是否必要
 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/gmail.send'，'https：// www。 googleapis.com/auth/gmail.compose'，'https://www.googleapis.com/auth/gmail.modify','https://www.googleapis.com/auth/gmail.readonly'），
 $ key 
）; 
 $ cred-> sub = $ userid_from; //<  - 重要！ 
 $ client-> setAssertionCredentials（$ cred）; 
 $ b $ if（$ client-> getAuth（） - > isAccessTokenExpired（））{
 $ client-> getAuth（） - > refreshTokenWithAssertion（$ cred）; 
} 
 
 //检查你想要这个字符串的有效性：http://www.komeil.com/toolbox/base64decoder 
 //它是web安全的base64编码的电子邮件
 $ mime =*已审查*，与您发布的内容相同，但另一收件人;-); 
 
 
 $ service = new \Google_Service_Gmail（$ client）; 
 
 $ msg = new \Google_Service_Gmail_Message（）; 
 $ msg-> setRaw（$ mime）; （$ userid_from，$ msg）; 
 
 
 print'带ID的消息：'。 $ results-> id。 '发送'。 
} catch（\Exception $ e）{
 print'发生错误：'。 $ E->的getMessage（）; 
} 
  

如果还有问题，请随时询问！

I expected the code below to send an email, but I'm only getting this:

I get a 200 OK using the Google Developers Console here at the bottom. Any help?

$client_id = '599901532082-js1r50n20q6n5mir9fo1g81qkj9kfn3j.apps.googleusercontent.com';
$service_account_name = '[e-mail]';
$key_file_location = '/tmp/APIProject-cb6558ba6435.p12';

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

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/gmail.send', 'https://www.googleapis.com/auth/gmail.compose'),
  $key
);
$client->setAssertionCredentials($cred);

if ($client->getAuth()->isAccessTokenExpired()) {
  $client->getAuth()->refreshTokenWithAssertion($cred);
}
//check if you want the validity of this string at: http://www.komeil.com/toolbox/base64decoder
//it is web safe base64 encoded email
$mime = "RnJvbTogSm9obiBEb2UgPHRpcmVuZ2FyZmlvQGdtYWlsLmVzPiANClRvOiBNYXJ5IFNtaXRoIDx0aXJlbmdhcmZpb0BnbWFpbC5jb20-IA0KU3ViamVjdDogU2F5aW5nIEhlbGxvIA0KRGF0ZTogRnJpLCAyMSBOb3YgMTk5NyAwOTo1NTowNiAtMDYwMCANCk1lc3NhZ2UtSUQ6IDwxMjM0QGxvY2FsLm1hY2hpbmUuZXhhbXBsZT4NCg0KVGhpcyBpcyBhIG1lc3NhZ2UganVzdCB0byBzYXkgaGVsbG8uIFNvLCAiSGVsbG8iLg==";


$service = new \Google_Service_Gmail($client);

$msg = new \Google_Service_Gmail_Message();
$msg->setRaw($mime);

try {
  $results = $service->users_messages->send("me", $msg);
  print 'Message with ID: ' . $message->getId() . ' sent.';
  return $message;
} catch (\Exception $e) {
  print 'An error occurred: ' . $e->getMessage();

}

EDIT:

this is the request object. It includes the response data also:

object(Google_Http_Request)[508]
  private 'batchHeaders' =>
    array (size=3)
      'Content-Type' => string 'application/http' (length=16)
      'Content-Transfer-Encoding' => string 'binary' (length=6)
      'MIME-Version' => string '1.0' (length=3)
  protected 'queryParams' =>
    array (size=0)
      empty
  protected 'requestMethod' => string 'POST' (length=4)
  protected 'requestHeaders' =>
    array (size=3)
      'content-type' => string 'application/json; charset=UTF-8' (length=31)
      'authorization' => string 'Bearer ya29.8gEUMiBLfxS8OLdSmpiQ-EcumeATo2qFAfPtPqwTw9fQ2zVrfZaA1X5OLoBmQccrXr8V8g' (length=82)
      'accept-encoding' => string 'gzip' (length=4)
  protected 'baseComponent' => string 'https://www.googleapis.com' (length=26)
  protected 'path' => string '/gmail/v1/users/me/messages/send' (length=32)
  protected 'postBody' => string '{"raw":"RnJvbTogSm9obiBEb2UgPHRpcmVuZ2FyZmlvQGdtYWlsLmVzPg0KVG86IE1hcnkgU21pdGggPHRpcmVuZ2FyZmlvQGdtYWlsLmNvbT4NClN1YmplY3Q6IFNheWluZyBIZWxsbw0KDQpUaGlzIGlzIGEgbWVzc2FnZSBqdXN0IHRvIHNheSBoZWxsby4gU28sICdIZWxsbycu"}' (length=214)
  protected 'userAgent' => string 'Client_Library_Examples google-api-php-client/1.0.6-beta (gzip)' (length=63)
  protected 'canGzip' => boolean true
  protected 'responseHttpCode' => null
  protected 'responseHeaders' => null
  protected 'responseBody' => null
  protected 'expectedClass' => string 'Google_Service_Gmail_Message' (length=28)
  public 'accessKey' => null

object(Google_Http_Request)[508]
  private 'batchHeaders' =>
    array (size=3)
      'Content-Type' => string 'application/http' (length=16)
      'Content-Transfer-Encoding' => string 'binary' (length=6)
      'MIME-Version' => string '1.0' (length=3)
  protected 'queryParams' =>
    array (size=0)
      empty
  protected 'requestMethod' => string 'POST' (length=4)
  protected 'requestHeaders' =>
    array (size=4)
      'content-type' => string 'application/json; charset=UTF-8' (length=31)
      'authorization' => string 'Bearer ya29.8gEUM***fxS8OLdSmpiQ-EcumeATo2qFAfPtPqwTw9fQ2zVrfZaA1X5OLoBmQccrXr8V8g' (length=82)
      'accept-encoding' => string 'gzip' (length=4)
      'content-length' => int 214
  protected 'baseComponent' => string 'https://www.googleapis.com' (length=26)
  protected 'path' => string '/gmail/v1/users/me/messages/send' (length=32)
  protected 'postBody' => string '{"raw":"RnJvbTogSm9obiBEb2UgPHRpcmVuZ2FyZmlvQGdtYWlsLmVzPg0KVG86IE1hcnkgU21pdGggPHRpcmVuZ2FyZmlvQGdtYWlsLmNvbT4NClN1YmplY3Q6IFNheWluZyBIZWxsbw0KDQpUaGlzIGlzIGEgbWVzc2FnZSBqdXN0IHRvIHNheSBoZWxsby4gU28sICdIZWxsbycu"}' (length=214)
  protected 'userAgent' => string 'Client_Library_Examples google-api-php-client/1.0.6-beta (gzip)' (length=63)
  protected 'canGzip' => boolean true
  protected 'responseHttpCode' => int 400
  protected 'responseHeaders' =>
    array (size=13)
      'vary' => string 'Origin
X-Origin' (length=15)
      'content-type' => string 'application/json; charset=UTF-8' (length=31)
      'content-encoding' => string 'gzip' (length=4)
      'date' => string 'Fri, 18 Sep 2015 08:34:25 GMT' (length=29)
      'expires' => string 'Fri, 18 Sep 2015 08:34:25 GMT' (length=29)
      'cache-control' => string 'private, max-age=0' (length=18)
      'x-content-type-options' => string 'nosniff' (length=7)
      'x-frame-options' => string 'SAMEORIGIN' (length=10)
      'x-xss-protection' => string '1; mode=block' (length=13)
      'server' => string 'GSE' (length=3)
      'alternate-protocol' => string '443:quic,p=1' (length=12)
      'alt-svc' => string 'quic=":443"; p="1"; ma=604800' (length=29)
      'transfer-encoding' => string 'chunked' (length=7)
  protected 'responseBody' => string '{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "failedPrecondition",
    "message": "Bad Request"
   }
  ],
  "code": 400,
  "message": "Bad Request"
 }
}
' (length=179)
  protected 'expectedClass' => string 'Google_Service_Gmail_Message' (length=28)
  public 'accessKey' => null

解决方案

finally got to send Mails with your code:

I think you have misunderstood the GMail API a little bit.

To use it, you must authenticate to the API. To do this, there are two ways:

• use OAuth - the Server redirects the user to google's servers, where they can login, grant permission to your app, and pass a token back to you
• Service Accounts. These are a little bit more complicated:
  • First, you'll have to setup an app (done)
  • second, you'll have to setup a service account. This is how your app authenticates to google. you've done that, and the certificate you've got contains the private key to authenticate
  • third, the user needs to grant your application access to act on behalf of them. This is the point you haven't done yet.

So what you're currently trying is to send mails from the service account, but this is not an GMail Account.

The Developer Console uses the OAuth method, so there's no problem to try this.

Please also note: With regular GMail Accounts, you can not use 'Service Accounts'. You'll have to use OAuth.To use Service Accounts, you need to be a Google Apps customer.

I won't conver OAuth authorization here, because it's completely different, and there are many examples out there.

To grant your Service Account Permissions to send mails on behalf of your GMails/Google Apps accounts, please followthis document. For One or More API Scopes, you'll have to enterhttps://mail.google.com/,https://www.googleapis.com/auth/gmail.modify,https://www.googleapis.com/auth/gmail.compose,https://www.googleapis.com/auth/gmail.send.

After you've setup this, it's possible to send mails, just modify the code as follows:

$results = $service->users_messages->send("me", $msg);

won't work, because 'me' referrs to the service account, which can't send mail (see above).Replace me with the user id (mail-address) of the account from which the mails should be send.:

$results = $service->users_messages->send("[email protected]", $msg);

Then, you'll need to add

$cred->sub = '[email protected]';

below

$cred = new \Google_Auth_AssertionCredentials(
  $service_account_name,
  array('https://www.googleapis.com/auth/gmail.send', 'https://www.googleapis.com/auth/gmail.compose'),
  $key
);

Please also note that $message should be $msg in the try...catch-Block.

Below, you'll find the the complete, working code for me:

<?php
require_once realpath(dirname(__FILE__) . '/../src/Google/autoload.php');
$client_id = '*censored*.apps.googleusercontent.com';
$service_account_name = '*censored*@developer.gserviceaccount.com';
$key_file_location = '/tmp/apiKey.p12';


$userid_from='*censored*';
$client = new \Google_Client();
$client->setApplicationName("Client_Library_Examples");


//hmmm, really don't know whether these lines are necessary
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/gmail.send', 'https://www.googleapis.com/auth/gmail.compose', 'https://www.googleapis.com/auth/gmail.modify','https://www.googleapis.com/auth/gmail.readonly'),
  $key
);
$cred->sub=$userid_from; //<-- Important!
$client->setAssertionCredentials($cred);

if ($client->getAuth()->isAccessTokenExpired()) {
  $client->getAuth()->refreshTokenWithAssertion($cred);
}

//check if you want the validity of this string at: http://www.komeil.com/toolbox/base64decoder
//it is web safe base64 encoded email
$mime = "*censored*, same content as you posted, but another recipient ;-)";


$service = new \Google_Service_Gmail($client);

$msg = new \Google_Service_Gmail_Message();
$msg->setRaw($mime);

try {
  $results = $service->users_messages->send($userid_from, $msg);
  print 'Message with ID: ' . $results->id . ' sent.';
} catch (\Exception $e) {
  print 'An error occurred: ' . $e->getMessage();
}

If there are any questions left, feel free to ask!

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