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<?php
/**
* Copyright 2018 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.
*/
namespace Google\Cloud\Samples\AppEngine\Storage;
use Google\Auth\Credentials\GCECredentials;
require_once __DIR__ . '/vendor/autoload.php';
$bucketName = getenv('GOOGLE_STORAGE_BUCKET');;
$projectId = getenv('GOOGLE_CLOUD_PROJECT');
$defaultBucketName = sprintf('%s.appspot.com', $projectId);
register_stream_wrapper($projectId);
if ($bucketName == '<your-bucket-name>') {
return 'Set the GOOGLE_STORAGE_BUCKET environment variable to the name of '
. 'your cloud storage bucket in <code>app.yaml</code>';
}
if (!in_array('gs', stream_get_wrappers())) {
return 'This application can only run in AppEngine or the Dev AppServer environment.';
}
if ($_SERVER['REQUEST_URI'] == '/write/public') {
$contents = sprintf('new file written at %s', date('Y-m-d H:i:s'));
$publicUrl = write_public($bucketName, 'public_file.txt', $contents);
header('Location: ' . $publicUrl);
exit;
}
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
switch ($_SERVER['REQUEST_URI']) {
case '/write':
write_file($bucketName, 'hello.txt', $_REQUEST['content']);
break;
case '/write/options':
write_options($bucketName, 'hello_options.txt', $_REQUEST['content']);
break;
case '/write/stream':
write_stream($bucketName, 'hello_stream.txt', $_REQUEST['content']);
break;
case '/write/caching':
write_with_caching($bucketName, 'hello_caching.txt', $_REQUEST['content']);
break;
case '/write/metadata':
write_metadata(
$bucketName,
'hello_metadata.txt',
$_REQUEST['content'],
['foo' => 'bar', 'baz' => 'qux']
);
break;
case '/write/default':
if (!GCECredentials::onGce()) {
exit('This sample will only work when running on App Engine');
}
write_default('hello_default.txt', $_REQUEST['content']);
break;
case '/write/default/stream':
if (!GCECredentials::onGce()) {
exit('This sample will only work when running on App Engine');
}
write_default_stream('hello_default_stream.txt', $_REQUEST['content']);
break;
case '/user/upload':
upload_file($bucketName);
exit;
}
header('Location: /');
exit;
}
$params = [];
$objects = [
'hello' => "gs://${bucketName}/hello.txt",
'options' => "gs://${bucketName}/hello_options.txt",
'stream' => "gs://${bucketName}/hello_stream.txt",
'caching' => "gs://${bucketName}/hello_caching.txt",
'metadata' => "gs://${bucketName}/hello_metadata.txt",
'default' => "gs://${defaultBucketName}/hello_default.txt",
'default_stream' => "gs://${defaultBucketName}/hello_default_stream.txt",
];
foreach ($objects as $name => $object) {
$params[$name] = file_exists($object) ? file_get_contents($object) : '';
}
// load file metadata
$metadata = [];
if (file_exists($objects['metadata'])) {
$metadata = read_metadata($projectId, $bucketName, 'hello_metadata.txt');
}
?>
<!DOCTYPE HTML>
<html>
<head>
<title>Storage Example</title>
</head>
<body>
<h1>Storage Example</h1>
<div>
<h3>
Write
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/#simple_file_write">docs</a>]:
</h3>
<form action="/write" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['hello']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['hello'] ?></p>
<?php endif ?>
</div>
<div>
<h3>
Write with Options
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/#simple_file_write">docs</a>]:
</h3>
<form action="/write/options" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['options']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['options'] ?></p>
<?php endif ?>
<div>
<div>
<h3>
Stream Write
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/#streamed_file_write">docs</a>]:
</h3>
<form action="/write/stream" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['stream']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['stream'] ?></p>
<?php endif ?>
<div>
<div>
<h3>
Write with Caching
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/advanced#cached_file_reads">docs</a>]:
</h3>
<form action="/write/caching" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['caching']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['caching'] ?></p>
<?php endif ?>
<div>
<div>
<h3>
Write with Metadata
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/advanced#reading_and_writing_custom_metadata">docs</a>]:
</h3>
<form action="/write/metadata" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['metadata']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['metadata'] ?></p>
<p><strong>Your metadata:</strong><p>
<pre>
<?php foreach ((array) $metadata as $key => $value): ?>
<?= $key ?>: <?= $value ?>
<?php endforeach ?>
</pre>
<?php endif ?>
<div>
<div>
<h3>
Write (default)
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/setup">docs</a>]:
</h3>
<form action="/write/default" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['default']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['default'] ?></p>
<?php endif ?>
<div>
<div>
<h3>
Stream Write (default)
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/setup">docs</a>]:
</h3>
<form action="/write/default/stream" method="post">
Some file content:<br />
<textarea name="content"></textarea><br />
<input type="submit" />
</form>
<?php if ($params['default_stream']): ?>
<p><strong>Your content:</strong><p>
<p><?= $params['default_stream'] ?></p>
<?php endif ?>
<div>
<div>
<h3>
Write and Serve Public Files
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/public_access#serving_files_directly_from_google_cloud_storage">docs</a>]:
</h3>
<p><em><a href="/write/public" target="_blank">Example of writing and serving a public file</a></em></p>
</div>
<div>
<h3>
User Uploads
[<a href="https://cloud.google.com/appengine/docs/php/googlestorage/user_upload">docs</a>]:
</h3>
<?php # [START user_upload_form]?>
<form action="/user/upload" enctype="multipart/form-data" method="post">
Files to upload: <br>
<input type="file" name="uploaded_files" size="40">
<input type="submit" value="Send">
</form>
<?php # [END user_upload_form]?>
</div>
</html>
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