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POForcing Download from s3 amazon servers
 

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    <p>I've been developing a new web application which relies on <strong>Amazon S3</strong> servers as storage system, and <strong>Codeiginter</strong> as the PHP framework. </p> <p>I need to force the file to download when the link is clicked. The original URL looks like this:</p> <p><code>http://www.our-web.com/download/do/1.jpg</code></p> <p>which generates a temporary signed URL to the actual file on the Amazon S3 servers like this:</p> <p><code>http://main_bucket.s3.amazonaws.com/post/1/1.jpg?AWSAccessKeyId=AKIAJEOQKYPKC3CCU5RA&amp;Expires=1305395426&amp;Signature=iuzCdA22gImLK192%2BMAhk8OkAY8%3D</code></p> <p>I need to make the file start downloading from the real Amazon URL it soon as the user clicks the link.</p> <p>I have two ways now to do so: </p> <ol> <li>Use <code>redirect()</code> which will open the file not download it; or</li> <li><p>Alter headers as this code:</p> <pre><code>header('Content-type: application/force-download'); header('Content-Disposition: attachment; filename=' . $file_name); header('Content-Transfer-Encoding: binary'); header('Expires: 4000'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header('Content-Length: ' . filesize($generated_file)); readfile($generated_file); </code></pre></li> </ol> <p>Unfortunately, both ways don't help me. The second method causes the download to come from my website and not from directly from Amazon.</p> <p>How can I force the file to download directly from the Amazon S3 servers, and not from my website?</p>
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    1. USKirk Beard
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    1. COuse file_get_contents or a cURL to retrive the S3 file then do a passthrough with the headers
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      1. USLawrence Cherone
    2. COThat's what he'd doing with `readfile`.
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      1. USLasar
    3. COcorrect, but even though I don't want the client to download the file through my website. there must be a better solution to download from another domain.
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