大きなファイルをAmazon S3にアップロード

Question

小さいファイルを扱うために、次のスクリプトを手に入れました。しかし、10MB以上のファイルをアップロードしようとすると、それは完了していますが、ファイルはS3バケットに表示されません。

10MB以上のファイルをアップロードするのではなく、小さいファイルをアップロードする理由は何ですか？

<?php 
//System path for our website folder 
define('DOCROOT', realpath(dirname(__FILE__)).DIRECTORY_SEPARATOR); 
//URL for our website 
define('WEBROOT', htmlentities(
    substr($_SERVER['REQUEST_URI'], 0, strcspn($_SERVER['REQUEST_URI'], "\n\r")), 
    ENT_QUOTES 
)); 

//Which bucket are we placing our files into 
$bucket = 'bucket.mysite.com'; 
// This will place uploads into the '20100920-234138' folder in the $bucket bucket 
$folder = date('Ymd-His').'/'; //Include trailing/

//Include required S3 functions 
require_once DOCROOT."includes/s3.php"; 

//Generate policy and signature 
list($policy, $signature) = S3::get_policy_and_signature(array(
    'bucket'  => $bucket, 
    'folder'  => $folder, 
    )); 
?> 


<script type="text/javascript"> 
    $(document).ready(function() { 
     $("#file_upload").uploadify({ 
      'uploader'  : '<?= WEBROOT ?>files/uploadify/uploadify.swf', 
      'buttonText'  : 'Browse', 
      'cancelImg'  : '<?= WEBROOT ?>files/uploadify/cancel.png', 
      'script'  : 'http://s3.amazonaws.com/<?= $bucket ?>', 
      'scriptAccess'  : 'always', 
      'method'  : 'post', 
      'scriptData'  : { 
       "AWSAccessKeyId"  : "<?= S3::$AWS_ACCESS_KEY ?>", 
       "key"    : "${filename}", 
       "acl"    : "authenticated-read", 
       "policy"   : "<?= $policy ?>", 
       "signature"   : "<?= $signature ?>", 
       "success_action_status"  : "201", 
       "key"    : encodeURIComponent(encodeURIComponent("<?= $folder ?>${filename}")), 
       "fileext"   : encodeURIComponent(encodeURIComponent("")), 
       "Filename"   : encodeURIComponent(encodeURIComponent("")) 
      }, 
      'fileExt'  : '*.*', 
      'fileDataName'  : 'file', 
      'simUploadLimit' : 2, 
      'multi'   : true, 
      'auto'   : true, 
      'onError'  : function(errorObj, q, f, err) { console.log(err); }, 
      'onComplete'  : function(event, ID, file, response, data) { console.log(file); } 
     }); 
    }); 
</script> 

---

<?php 
    class S3 { 
     public static $AWS_ACCESS_KEY  = '< Your access key >'; 
     public static $AWS_SECRET_ACCESS_KEY = '< Your secrete key >'; 


    /* 
    * Purpose: 
    *  Actionscript encodes '+' characters in the signature incorrectly - it makes 
    *  them a space instead of %2B the way PHP does. This causes uploadify to error 
    *  out on upload. This function recursively generates a new policy and signature 
    *  until a signature without a + character is created. 
    * Accepts: array $data 
    * Returns: policy and signature 
    */ 
    public static function get_policy_and_signature(array $data) 
    { 
     $policy = self::get_policy_doc($data); 
     $signature = self::get_signature($policy); 

     if (strpos($signature, '+') !== FALSE) 
     { 
      $data['timestamp'] = intval(@$data['timestamp']) + 1; 
      return self::get_policy_and_signature($data); 
     } 

     return array($policy, $signature); 
    } 

    public static function get_policy_doc(array $data) 
    { 
     return base64_encode(
      '{'. 
       '"expiration": "'.gmdate('Y-m-d\TH:i:s\Z', time()+60*60*24+intval(@$data['timestamp'])).'",'. 
       '"conditions": '. 
       '['. 
        '{"bucket": "'.$data['bucket'].'"},'. 
        '["starts-with", "$key", ""],'. 
        '{"acl": "authenticated-read"},'. 
        //'{"success_action_redirect": "'.$SWFSuccess_Redirect.'"},'. 
        '{"success_action_status": "201"},'. 
        '["starts-with","$key","'.str_replace('/', '\/', $data['folder']).'"],'. 
        '["starts-with","$Filename",""],'. 
        '["starts-with","$folder",""],'. 
        '["starts-with","$fileext",""],'. 
        '["content-length-range",0,5242880]'. 
       ']'. 
      '}' 
     ); 
    } 

    public static function get_signature($policy_doc) { 
     return base64_encode(hash_hmac(
      'sha1', $policy_doc, self::$AWS_SECRET_ACCESS_KEY, true 
     )); 
    } 
    } 

Answer 1

問題解決の問題は、私はそれをコメントアウトし、このライン

'["content-length-range",0,5242880]' 

していましたし、それが必要として動作します。サイズに制限はありません。