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Upload File : |
<?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 __DIR__ . '/../vendor/autoload.php';
include_once "templates/base.php";
echo pageHeader("File Upload - Uploading a large file");
/*************************************************
* Ensure you've downloaded your oauth credentials
************************************************/
if (!$oauth_credentials = getOAuthCredentialsFile()) {
echo missingOAuth2CredentialsWarning();
return;
}
/************************************************
* The redirect URI is to the current page, e.g:
* http://localhost:8080/large-file-upload.php
************************************************/
$redirect_uri = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
$client = new Google\Client();
$client->setAuthConfig($oauth_credentials);
$client->setRedirectUri($redirect_uri);
$client->addScope("https://www.googleapis.com/auth/drive");
$service = new Google\Service\Drive($client);
// add "?logout" to the URL to remove a token from the session
if (isset($_REQUEST['logout'])) {
unset($_SESSION['upload_token']);
}
/************************************************
* If we have a code back from the OAuth 2.0 flow,
* we need to exchange that with the
* Google\Client::fetchAccessTokenWithAuthCode()
* function. We store the resultant access token
* bundle in the session, and redirect to ourself.
************************************************/
if (isset($_GET['code'])) {
$token = $client->fetchAccessTokenWithAuthCode($_GET['code']);
$client->setAccessToken($token);
// store in the session also
$_SESSION['upload_token'] = $token;
// redirect back to the example
header('Location: ' . filter_var($redirect_uri, FILTER_SANITIZE_URL));
}
// set the access token as part of the client
if (!empty($_SESSION['upload_token'])) {
$client->setAccessToken($_SESSION['upload_token']);
if ($client->isAccessTokenExpired()) {
unset($_SESSION['upload_token']);
}
} else {
$authUrl = $client->createAuthUrl();
}
/************************************************
* If we're signed in then lets try to upload our
* file.
************************************************/
if ($_SERVER['REQUEST_METHOD'] == 'POST' && $client->getAccessToken()) {
/************************************************
* We'll setup an empty 20MB file to upload.
************************************************/
DEFINE("TESTFILE", 'testfile.txt');
if (!file_exists(TESTFILE)) {
$fh = fopen(TESTFILE, 'w');
fseek($fh, 1024*1024*20);
fwrite($fh, "!", 1);
fclose($fh);
}
$file = new Google\Service\Drive\DriveFile();
$file->name = "Big File";
$chunkSizeBytes = 1 * 1024 * 1024;
// Call the API with the media upload, defer so it doesn't immediately return.
$client->setDefer(true);
$request = $service->files->create($file);
// Create a media file upload to represent our upload process.
$media = new Google\Http\MediaFileUpload(
$client,
$request,
'text/plain',
null,
true,
$chunkSizeBytes
);
$media->setFileSize(filesize(TESTFILE));
// Upload the various chunks. $status will be false until the process is
// complete.
$status = false;
$handle = fopen(TESTFILE, "rb");
while (!$status && !feof($handle)) {
// read until you get $chunkSizeBytes from TESTFILE
// fread will never return more than 8192 bytes if the stream is read
// buffered and it does not represent a plain file
// An example of a read buffered file is when reading from a URL
$chunk = readVideoChunk($handle, $chunkSizeBytes);
$status = $media->nextChunk($chunk);
}
// The final value of $status will be the data from the API for the object
// that has been uploaded.
$result = false;
if ($status != false) {
$result = $status;
}
fclose($handle);
}
function readVideoChunk($handle, $chunkSize)
{
$byteCount = 0;
$giantChunk = "";
while (!feof($handle)) {
// fread will never return more than 8192 bytes if the stream is read
// buffered and it does not represent a plain file
$chunk = fread($handle, 8192);
$byteCount += strlen($chunk);
$giantChunk .= $chunk;
if ($byteCount >= $chunkSize) {
return $giantChunk;
}
}
return $giantChunk;
}
?>
<div class="box">
<?php if (isset($authUrl)) : ?>
<div class="request">
<a class='login' href='<?= $authUrl ?>'>Connect Me!</a>
</div>
<?php elseif ($_SERVER['REQUEST_METHOD'] == 'POST') : ?>
<div class="shortened">
<p>Your call was successful! Check your drive for this file:</p>
<p><a href="https://drive.google.com/open?id=<?= $result->id ?>" target="_blank"><?= $result->name ?></a></p>
<p>Now try <a href="/large-file-download.php">downloading a large file from Drive</a>.
</div>
<?php else : ?>
<form method="POST">
<input type="submit" value="Click here to upload a large (20MB) test file" />
</form>
<?php endif ?>
</div>
<?= pageFooter(__FILE__);