PHP S3Client::createPresignedRequest方法代码示例

 /**
  * Create a link to a S3 object from a bucket. If expiration is not empty, then it is used to create
  * a signed URL
  *
  * @param  string     $object The object name (full path)
  * @param  string     $bucket The bucket name
  * @param  string|int $expiration The Unix timestamp to expire at or a string that can be evaluated by strtotime
  * @throws InvalidDomainNameException
  * @return string
  */
 public function __invoke($object, $bucket = '', $expiration = '')
 {
     $bucket = trim($bucket ?: $this->getDefaultBucket(), '/');
     if (empty($bucket)) {
         throw new InvalidDomainNameException('An empty bucket name was given');
     }
     if ($expiration) {
         $command = $this->client->getCommand('GetObject', ['Bucket' => $bucket, 'Key' => $object]);
         return $this->client->createPresignedRequest($command, $expiration)->getUri()->__toString();
     } else {
         return $this->client->getObjectUrl($bucket, $object);
     }
 }

 /**
  * Get a URL to the resource.
  *
  * @param \CipeMotion\Medialibrary\Entities\File                $file
  * @param \CipeMotion\Medialibrary\Entities\Transformation|null $tranformation
  * @param bool                                                  $fullPreview
  * @param bool                                                  $download
  *
  * @return string
  */
 public function getUrlForTransformation(File $file, Transformation $tranformation = null, $fullPreview = false, $download = false)
 {
     if (empty($tranformation)) {
         $tranformationName = 'upload';
         $extension = $file->extension;
         if ($fullPreview && $file->type !== FileTypes::TYPE_IMAGE) {
             $tranformationName = 'preview';
             $extension = 'jpg';
         }
     } else {
         $tranformationName = $tranformation->name;
         $extension = $tranformation->extension;
     }
     $commandParams = ['ResponseCacheControl' => 'private, max-age=1200', 'ResponseContentType' => $file->mime_type, 'Bucket' => array_get($this->config, 'bucket'), 'Key' => "{$file->id}/{$tranformationName}.{$extension}"];
     if ($download) {
         $commandParams['ResponseContentDisposition'] = "attachment; filename={$file->filename}";
     }
     $expires = array_get($this->config, 'presigned.expires', '+20 minutes');
     $command = $this->client->getCommand('GetObject', $commandParams);
     return (string) $this->client->createPresignedRequest($command, $expires)->getUri();
 }

 public function getPreSignedUrl($bucket, $key, $expiryInMinutes = 10)
 {
     $this->bucket = $bucket;
     $this->key = $key;
     $this->scenario = 'delete';
     if ($this->validate()) {
         try {
             $s3Client = new S3Client(['version' => 'latest', 'region' => Yii::$app->params['amazon']['region'], 'credentials' => Yii::$app->params['amazon']['credentials']]);
             $cmd = $s3Client->getCommand('GetObject', ['Bucket' => $this->bucket, 'Key' => $this->key]);
             $request = $s3Client->createPresignedRequest($cmd, '+' . $expiryInMinutes . ' minutes');
             return (string) $request->getUri();
         } catch (\Exception $e) {
             Yii::error('Error getting pre-signed url from S3. Bucket - ' . $this->bucket . ' Key - ' . $this->key . ' Extra - ' . $e->getMessage());
             return false;
         }
     }
     return false;
 }

$o_iter = $s3client->getIterator('ListObjects', array('Bucket' => $s3Bucket));
foreach ($o_iter as $o) {
    if ($o['Size'] != '0') {
        // Because we don't want to list folders
        echo "<form enctype='multipart/form-data' name='fileDELForm' method='post' action='index.php' style='border:1px;' >";
        $prefixKey = explode("/", $o['Key']);
        if ($prefixKey[0] == 'public') {
            echo "<a href='http://" . $s3Bucket . "/" . $o['Key'] . "'>";
            echo "<img src='http://{$s3Bucket}/" . $o['Key'] . "' style='width:100px;height:100px;'/></a>";
            echo "<input type='hidden' name='fileKey' id='fileKey' value='" . $o['Key'] . "' />";
            echo "{$o['Key']}";
            echo "<input type='submit' name='submit' id='submit' value='Delete' />";
        }
        if ($prefixKey[0] == 'QSA') {
            $objectPre = $s3client->getCommand('GetObject', ['Bucket' => $s3Bucket, 'Key' => $o['Key']]);
            $presignedRequest = $s3client->createPresignedRequest($objectPre, '+30 minutes');
            $objectURL = (string) $presignedRequest->getUri();
            echo "<a href='{$objectURL}' >";
            echo "<img src='{$objectURL}' style='width:100px;height:100px;' /></a>";
            echo "<input type='hidden' name='fileKey' id='fileKey' value='" . $o['Key'] . "' />";
            echo "{$o['Key']}";
            echo "<input type='submit' name='submit' id='submit' value='Delete' />";
        }
        echo "</form>";
    }
}
// Check if the UL form has been posted
if ($submit == 'Upload') {
    if (isset($s3Bucket) && is_uploaded_file($_FILES['fileUL']['tmp_name'])) {
        $finfo = finfo_open(FILEINFO_MIME_TYPE);
        $fileType = finfo_file($finfo, $_FILES['fileUL']['tmp_name']);