Using Zend to get gmail messages identified by api search - php

Question

I'm trying to search a user's gmail account for emails with attachments and collect statistics. I can successfully use oauth to authenticate and then use the gmail api to get the message ids ($id). Then I need to get headers, and finally, I need to get the messages themselves.
That has proven difficult. (And I eventually need to do this for all messages from all folders.)
I have occasionally gotten the headers using the gmail api, but everything bogged down and the code below crashes my server (WTF?).
I am considering using Zend to get the headers and attachments because it supports oauth, but the getmessage($id) function of Zend does not use the id that the api gives needs and I haven't found how to convert them.
Any help would be immensely appreciated.
<?php
/*
* Copyright 2011 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.
*/
include_once "templates/base.php";
session_start();
set_include_path("../src/" . PATH_SEPARATOR . get_include_path());
require_once 'Google/Client.php';
require_once 'Google/Service/Gmail.php';
/************************************************
ATTENTION: Fill in these values! Make sure
the redirect URI is to this page, e.g:
http://localhost:8080/user-example.php
************************************************/
$client_id = 'XXXXXXXXXXX.apps.googleusercontent.com'; // Client ID
$client_secret = 'YYYYYYYYYYYYY'; // Client Secret
$redirect_uri = 'https://www.example.com/Google/testgmail.php'; // Redirect URI
/************************************************
Make an API request on behalf of a user. In
this case we need to have a valid OAuth 2.0
token for the user, so we need to send them
through a login flow. To do this we need some
information from our API console project.
************************************************/
$client = new Google_Client();
$client->setClientId($client_id);
$client->setClientSecret($client_secret);
$client->setRedirectUri($redirect_uri);
$client->addScope("https://www.googleapis.com/auth/gmail.readonly");
$gm_service = new Google_Service_Gmail($client);
/************************************************
Boilerplate auth management - see
user-example.php for details.
************************************************/
if (isset($_REQUEST['logout'])) {
unset($_SESSION['access_token']);
}
if (isset($_GET['code'])) {
$client->authenticate($_GET['code']);
$_SESSION['access_token'] = $client->getAccessToken();
$redirect = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
header('Location: ' . filter_var($redirect, FILTER_SANITIZE_URL));
}
if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
$client->setAccessToken($_SESSION['access_token']);
} else {
$authUrl = $client->createAuthUrl();
}
/************************************************
If we're signed in, retrieve channels from YouTube
and a list of files from Drive.
************************************************/
if ($client->getAccessToken()) {
$_SESSION['access_token'] = $client->getAccessToken();
}
echo pageHeader("User Query - Multiple APIs");
function listMessages($service, $userId) {
$pageToken = NULL;
$messages = array();
$opt_param = array();
do {
try {
if ($pageToken) {
$opt_param['pageToken'] = $pageToken;
$opt_param['q'] = 'filename:(jpg OR png OR gif)';
$opt_param['maxResults'] = 100;
}
$messagesResponse = $service->users_messages->listUsersMessages($userId, $opt_param);
if ($messagesResponse->getMessages()) {
$messages = array_merge($messages, $messagesResponse->getMessages());
$pageToken = $messagesResponse->getNextPageToken();
}
} catch (Exception $e) {
print 'An error occurred: ' . $e->getMessage();
}
} while ($pageToken);
$optParamsGet = array();
$optParamsGet['format'] = 'metadata';
foreach ($messages as $message) {
$message_id = $message->getId();
print 'Message with ID: ' . $message_id . '<br/>';
// This is the section that causes it to crash !!!
// $message2 = $service->users_messages->get($userId,$message_id,$optParamsGet); //if this line is uncommented, then everything stops working.
// if ($message2->getPayload()) {
// $messagePayload = $message2->getPayload();
// $headers = $message2->getPayload()->getHeaders();
// var_dump($headers);
// }
// This is the section that causes it to crash !!!
}
return $messages;
}
?>
<div class="box">
<div class="request">
<?php if (isset($authUrl)) { ?>
<a class='login' href='<?php echo $authUrl; ?>'>Connect Me!</a>
<?php } else {
echo "<h3>Results Of Gmail search:</h3>";
$messagelist = listMessages($gm_service, 'me');
} ?>
</div>
</div>

Answer 1

$id is the index of the message inside of the inbox. So the most recent email received has the index 0
You can find an implementation of the algorith for search email with attachments in this repo
https://bitbucket.org/startupbootstrap/email-attachments/src/ae4739bf956c8958a4128a34eb04c8fd855c0500/EmailAttachments.php?at=master#cl-85