我正在使用php代码示例上传youtube提供的视频，可在此处找到：https://developers.google.com/youtube/v3/code_samples/php#upload_a_video
但是，当会话启动时，它需要用户对其进行授权，因此它会将您带到授权页面，然后重定向您。在这样做时，它上传两次，我认为它正在尝试上传未经授权时无法执行的视频。它只在授权时加倍上传，而不是在重新加载页面且会话仍然有效时。
如何停止此初始重复上传？
答案 0 :(得分：3)
当用户点击提交按钮并在文本输入中定义路径时，您可以使用以下代码在用户登录后立即上传文件：
<?php
/**
* Library Requirements
*
* 1. Install composer (https://getcomposer.org)
* 2. On the command line, change to this directory (api-samples/php)
* 3. Require the google/apiclient library
* $ composer require google/apiclient:~2.0
*/
if (!file_exists(__DIR__ . '/vendor/autoload.php')) {
throw new \Exception('please run "composer require google/apiclient:~2.0" in "' . __DIR__ .'"');
}
require_once __DIR__ . '/vendor/autoload.php';
session_start();
$response = "";
/*
* You can acquire an OAuth 2.0 client ID and client secret from the
* {{ Google Cloud Console }} <{{ https://cloud.google.com/console }}>
* For more information about using OAuth 2.0 to access Google APIs, please see:
* <https://developers.google.com/youtube/v3/guides/authentication>
* Please ensure that you have enabled the YouTube Data API for your project.
*/
$OAUTH2_CLIENT_ID = 'YOUR_CLIENTID';
$OAUTH2_CLIENT_SECRET = 'YOUR_CLIENT_SECRET';
$client = new Google_Client();
$client->setClientId($OAUTH2_CLIENT_ID);
$client->setClientSecret($OAUTH2_CLIENT_SECRET);
$client->setScopes('https://www.googleapis.com/auth/youtube');
$redirect = filter_var('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'],
FILTER_SANITIZE_URL);
$client->setRedirectUri($redirect);
// Define an object that will be used to make all API requests.
$youtube = new Google_Service_YouTube($client);
// Check if an auth token exists for the required scopes
$tokenSessionKey = 'token-' . $client->prepareScopes();
if (isset($_GET['code'])) {
if (strval($_SESSION['state']) !== strval($_GET['state'])) {
die('The session state did not match.');
}
$client->authenticate($_GET['code']);
$_SESSION[$tokenSessionKey] = $client->getAccessToken();
header('Location: ' . $redirect);
}
if (isset($_SESSION[$tokenSessionKey])) {
$client->setAccessToken($_SESSION[$tokenSessionKey]);
}
// Check to ensure that the access token was successfully acquired.
if ($client->getAccessToken()) {
try {
$videoPath = "";
if (isset($_GET['videoPath'])){
$videoPath = $_GET['videoPath'];
}
else if(isset($_SESSION['videoPath'])){
$videoPath = $_SESSION['videoPath'];
}
if(isset($videoPath) && !isset($_GET['state']) && file_exists($videoPath)) {
// Create a snippet with title, description, tags and category ID
// Create an asset resource and set its snippet metadata and type.
// This example sets the video's title, description, keyword tags, and
// video category.
$snippet = new Google_Service_YouTube_VideoSnippet();
$snippet->setTitle("Test title");
$snippet->setDescription("Test description");
$snippet->setTags(array("tag1", "tag2"));
// Numeric video category. See
// https://developers.google.com/youtube/v3/docs/videoCategories/list
$snippet->setCategoryId("22");
// Set the video's status to "public". Valid statuses are "public",
// "private" and "unlisted".
$status = new Google_Service_YouTube_VideoStatus();
$status->privacyStatus = "private";
// Associate the snippet and status objects with a new video resource.
$video = new Google_Service_YouTube_Video();
$video->setSnippet($snippet);
$video->setStatus($status);
// Specify the size of each chunk of data, in bytes. Set a higher value for
// reliable connection as fewer chunks lead to faster uploads. Set a lower
// value for better recovery on less reliable connections.
$chunkSizeBytes = 1 * 1024 * 1024;
// Setting the defer flag to true tells the client to return a request which can be called
// with ->execute(); instead of making the API call immediately.
$client->setDefer(true);
// Create a request for the API's videos.insert method to create and upload the video.
$insertRequest = $youtube->videos->insert("status,snippet", $video);
// Create a MediaFileUpload object for resumable uploads.
$media = new Google_Http_MediaFileUpload(
$client,
$insertRequest,
'video/*',
null,
true,
$chunkSizeBytes
);
$media->setFileSize(filesize($videoPath));
// Read the media file and upload it chunk by chunk.
$status = false;
$handle = fopen($videoPath, "rb");
while (!$status && !feof($handle)) {
$chunk = fread($handle, $chunkSizeBytes);
$status = $media->nextChunk($chunk);
}
fclose($handle);
// If you want to make other calls after the file upload, set setDefer back to false
$client->setDefer(false);
$response .= "<h3>Video Uploaded</h3><ul>";
$response .= sprintf('<li>%s (%s)</li>',
$status['snippet']['title'],
$status['id']);
$response .= '</ul>';
$_SESSION['path'] = "";
}
else{
$response = "no path was specified or file doesn't exist";
file_put_contents('php://stderr', print_r("no path was specified or file doesn't exist", TRUE));
}
} catch (Google_Service_Exception $e) {
$response = htmlspecialchars($e->getMessage());
} catch (Google_Exception $e) {
$response = htmlspecialchars($e->getMessage());
}
$_SESSION[$tokenSessionKey] = $client->getAccessToken();
} else {
if(isset($_GET['videoPath'])){
$_SESSION["videoPath"] = $_GET['videoPath'];
// If the user hasn't authorized the app, initiate the OAuth flow
$state = mt_rand();
$client->setState($state);
$_SESSION['state'] = $state;
$authUrl = $client->createAuthUrl();
header('Location: ' . $authUrl);
}
}
?>
<!doctype html>
<html>
<head>
<title>Upload Video</title>
</head>
<body>
<div>
<form id="form" action="resumable_upload.php"">
<label>Enter the path to the video to upload
:
<input id="video-path" name="videoPath" value='/path/to/video' type="text" />
</label>
<input name="action" type="submit" value="Upload video" />
</form>
<div id="playlist-container">
<?php echo $response ?>
</div>
</div>
</body>
</html>
但是如果页面刷新或者用户再次错误地点击该按钮，它将重新上传视频。检查this post以处理重复的视频问题
答案 1 :(得分：-1)
我知道这个问题很老，但这是我一段时间以来一直在努力的问题。
在我的情况下，我有一个需要将值传递到上载脚本的表单，并且如果未登录用户，则发布值将在登录过程中丢失。所以我想出了一种使用会话变量的方法。
首先在脚本开始时，我设置了一个变量来计算“页面”浏览量-
// set the session views
if (!isset($_SESSION['views'])) {
$_SESSION['views'] = 0;
}
// every view increments
$_SESSION['views'] = $_SESSION['views'] + 1;
然后我存储了会话变量。
// If the user hasn't authorized the app, initiate the OAuth flow
$state = mt_rand();
$client->setState($state);
$_SESSION['state'] = $state;
$authorID = $_POST['a_id'];
$videoTitle = $_POST['ytu_title'];
// Set session variables
$vidID = $_POST['vid_id'];
$_SESSION["author"] = $_POST['a_id'];
$_SESSION["title"] = $_POST['ytu_title'];
$_SESSION["video"] = $vidID;
然后我在上载前放置了if语句来检查视图-
// if its on the third view or more
if ($_SESSION['views'] >= 3) {
// Create a snippet with title, description, tags and category ID
// Create an asset resource and set its snippet metadata and type.
// This example sets the video's title, description, keyword tags, and
// video category.
$snippet = new Google_Service_YouTube_VideoSnippet();
$snippet->setTitle($_SESSION["title"]);
$snippet->setDescription("Youtube Video.");
$snippet->setTags(array(
"test",
"test 2"
));
// and rest of the upload part from upload php script
// etc etc
// Create a MediaFileUpload object for resumable uploads.
$media = new Google_Http_MediaFileUpload($client, $insertRequest, 'video/*', null, true, $chunkSizeBytes);
$media->setFileSize(filesize($videoPath));
// Read the media file and upload it chunk by chunk.
$status = false;
$handle = fopen($videoPath, "rb");
while (!$status && !feof($handle)) {
$chunk = fread($handle, $chunkSizeBytes);
$status = $media->nextChunk($chunk);
}
fclose($handle);
} // closing if statement
我终于可以在上传之前使用if语句解决问题。