我一直在尝试使用Gmail API下载此邮件附带的文件。到目前为止，我可以得到这个信息：
Google_Service_Gmail_Message Object
(
[collection_key:protected] => labelIds
[internal_gapi_mappings:protected] => Array
(
)
[historyId] => 1571
[id] => 155e27d1fe295bbd
[internalDate] => 1468383698000
[labelIds] => Array
(
[0] => SENT
[1] => INBOX
[2] => IMPORTANT
)
[payloadType:protected] => Google_Service_Gmail_MessagePart
[payloadDataType:protected] =>
[raw] =>
[sizeEstimate] => 19335
[snippet] => POPOY
[threadId] => 155e27d1fe295bbd
[modelData:protected] => Array
(
[payload] => Google_Service_Gmail_MessagePart Object
(
[collection_key:protected] => parts
[internal_gapi_mappings:protected] => Array
(
)
[bodyType:protected] => Google_Service_Gmail_MessagePartBody
[bodyDataType:protected] =>
[filename] =>
[headersType:protected] => Google_Service_Gmail_MessagePartHeader
[headersDataType:protected] => array
[mimeType] => multipart/mixed
[partId] =>
[partsType:protected] => Google_Service_Gmail_MessagePart
[partsDataType:protected] => array
[modelData:protected] => Array
(
[headers] => Array
(
[0] => Array
(
[name] => MIME-Version
[value] => 1.0
)
[1] => Array
(
[name] => Received
[value] => by 10.140.92.230 with HTTP; Tue, 12 Jul 2016 21:21:38 -0700 (PDT)
)
[2] => Array
(
[name] => Date
[value] => Wed, 13 Jul 2016 12:21:38 +0800
)
[3] => Array
(
[name] => Delivered-To
[value] => maingabbytest@gmail.com
)
[4] => Array
(
[name] => Message-ID
[value] =>
)
[5] => Array
(
[name] => Subject
[value] => test w/ attachment
)
[6] => Array
(
[name] => From
[value] => Chris Jason Barredo
)
[7] => Array
(
[name] => To
[value] => Chris Jason Barredo
)
[8] => Array
(
[name] => Content-Type
[value] => multipart/mixed; boundary=001a11c13ea0c1971805377cb89b
)
)
[body] => Array
(
[size] => 0
)
[parts] => Array
(
[0] => Google_Service_Gmail_MessagePart Object
(
[collection_key:protected] => parts
[internal_gapi_mappings:protected] => Array
(
)
[bodyType:protected] => Google_Service_Gmail_MessagePartBody
[bodyDataType:protected] =>
[filename] =>
[headersType:protected] => Google_Service_Gmail_MessagePartHeader
[headersDataType:protected] => array
[mimeType] => multipart/alternative
[partId] =>
[partsType:protected] => Google_Service_Gmail_MessagePart
[partsDataType:protected] => array
[modelData:protected] => Array
(
[headers] => Array
(
[0] => Array
(
[name] => Content-Type
[value] => multipart/alternative; boundary=001a11c13ea0c1970b05377cb899
)
)
[body] => Array
(
[size] => 0
)
[parts] => Array
(
[0] => Array
(
[partId] => 0.0
[mimeType] => text/plain
[filename] =>
[headers] => Array
(
[0] => Array
(
[name] => Content-Type
[value] => text/plain; charset=UTF-8
)
)
[body] => Array
(
[size] => 7
[data] => UE9QT1kNCg==
)
)
[1] => Array
(
[partId] => 0.1
[mimeType] => text/html
[filename] =>
[headers] => Array
(
[0] => Array
(
[name] => Content-Type
[value] => text/html; charset=UTF-8
)
)
[body] => Array
(
[size] => 28
[data] => PGRpdiBkaXI9Imx0ciI-UE9QT1k8L2Rpdj4NCg==
)
)
)
)
[processed:protected] => Array
(
)
)
[1] => Google_Service_Gmail_MessagePart Object
(
[collection_key:protected] => parts
[internal_gapi_mappings:protected] => Array
(
)
[bodyType:protected] => Google_Service_Gmail_MessagePartBody
[bodyDataType:protected] =>
[filename] => popoy.jpeg
[headersType:protected] => Google_Service_Gmail_MessagePartHeader
[headersDataType:protected] => array
[mimeType] => image/jpeg
[partId] => 1
[partsType:protected] => Google_Service_Gmail_MessagePart
[partsDataType:protected] => array
[modelData:protected] => Array
(
[headers] => Array
(
[0] => Google_Service_Gmail_MessagePartHeader Object
(
[internal_gapi_mappings:protected] => Array
(
)
[name] => Content-Type
[value] => image/jpeg; name="popoy.jpeg"
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
[1] => Google_Service_Gmail_MessagePartHeader Object
(
[internal_gapi_mappings:protected] => Array
(
)
[name] => Content-Disposition
[value] => attachment; filename="popoy.jpeg"
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
[2] => Google_Service_Gmail_MessagePartHeader Object
(
[internal_gapi_mappings:protected] => Array
(
)
[name] => Content-Transfer-Encoding
[value] => base64
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
[3] => Google_Service_Gmail_MessagePartHeader Object
(
[internal_gapi_mappings:protected] => Array
(
)
[name] => X-Attachment-Id
[value] => f_iqkdq8dk0
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
)
[body] => Google_Service_Gmail_MessagePartBody Object
(
[internal_gapi_mappings:protected] => Array
(
)
[attachmentId] => ANGjdJ-18nbgORhdtkl3nD4dezCwSPODA0qgR7UsIeoGWQp8xIC4VFCvxP0xRUkMGQYm1uAqbMTP8L_wMgZFA1IEy5FXwgXeJOW9UmJGB87SuBIjNezVlXOY-6OhbxMktWTfgkiGx4Eb6dhFkrY-iWvbOWEjmWajiT54oj0SoaHQvNXGI-HmZZ2L6m62DHSPQCWn0qSRZsMcxddXSlczatQtCcjvMR7Hy9rhoNxe2Rd2bf_jU2PyHbsQxtvaWvp-lx_fnBrcWX5pjWhW5x3XWzrxhgRIF4xJfGa_fqV7g-G750vqbj5vRRAWX_cPvuU
[data] =>
[size] => 18308
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
)
[processed:protected] => Array
(
[body] => 1
[headers] => 1
)
)
)
)
[processed:protected] => Array
(
[parts] => 1
)
)
)
[processed:protected] => Array
(
[payload] => 1
)
)
到目前为止，当我尝试下载它时，我正在获取该文件，但是当我打开它时，我无法看到该文件。看起来像一个损坏的文件：
public function download(){
$file = 'popoy.jpg';
header('Content-Type: application/download');
header('Content-Disposition: attachment; filename="'.$file.'"');
header("Content-Length: " . filesize($file));
}
答案 0 :(得分：3)
您需要获取附件的元数据，并将其作为标题信息添加到您下载的页面上。为此，您需要在下载时同时拥有与所选附件相关的messageId和partId。您可以将它们作为获取参数发送到下载页面。
下载代码如下：
$files = [];
$gmail = new Google_Service_Gmail($client);
$attachmentHeaders = [];
$message = $gmail->users_messages->get($userId, $messageId);
$messageDetails = $message->getPayload();
foreach ($messageDetails['parts'][$partId]['headers'] as $item) {
$attachmentHeaders[$item->name] = $item->value;
}
$attachmentDetails = ['mimeType' => $messageDetails['parts'][$partId]['mimeType'], 'filename' => $messageDetails['parts'][$partId]['filename'] ,'headers' => $attachmentHeaders, 'attachmentId' => $messageDetails['parts'][$partId]['body']['attachmentId']];
$attachment = $gmail->users_messages_attachments->get($userId, $messageId, $attachmentDetails['attachmentId']);
$attachmentDetails['data'] = $this->base64UrlDecode($attachment->data);
foreach ($attachmentDetails['headers'] as $key => $value) {
header($key.':'.$value);
}
echo $attachmentDetails['data'];
我创建了一个包装器，它涵盖了大多数gmail的功能，包括添加/预览附件。您可以查看它here，您可能会发现它很有用。