Jul 25, 2008
Using CURL to Upload Files via POST to Amazon S3
A few months ago I wrote a post about creating Amazon S3 HMAC Signatures without PEAR or PHP5. One of the things I was using that PHP script for was to feed the necessary information to a bash script hosted on a remote machine. The bash script was to upload a file via POST to Amazon S3 using the information provided.
Since CURL was already installed on the remote machine, I wanted to use that to do the actual uploading. I found very little help on the net regarding how to do this with CURL so here you go:
eris:~ raam$ curl \ -F "key=screenshots/current_screenshot.jpg" \ -F "acl=public-read" \ -F "AWSAccessKeyId=2EO6H8MX1X8YWEA0V432" \ -F "Policy=eyAiZXhwaXshdGlvbpI6ICIyMDA4LTErLTAxVDtyOjAwOjAwLjAsMFoiLAogICJjb25kaXRpb25zPjogWwoJeyJidWNrZXQiOiAiczNwaG90b3MubW9hcHAubmV0IiB9LAogICAgWyJzdGFydHMtd2l0aCIsICIka2V5IiwgIkxpdmVTaG90cy8iXSwKICAgIHsiYWNsIjogInB1YmxpYy1yZWFkIiB9LAoJWyJlcSIsICIkQ29udGVudC1UeXBlIiwgImltYWdlL2pwZWciXSwKICBdCn0K" \ -F "Signature=20uh08kU75ADHL49NyhYRgZW8BY=" \ -F "Content-Type=image/jpeg" \ -F "file=@current_screenshot.jpg" \ http://screenshots.ekarma.net
Keep in mind this assumes the current_screenshot.jpg file is in your current directory.
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