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JQuery file upload plugin (blueimp) with NodeJs Express3 directly to Amazon S3 with public access
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| crypto = require("crypto") | |
| moment = require("moment") //requires >= 1.5.0 for UTC support | |
| exports.upload = (req, res) -> | |
| p = policy() | |
| s = signature(p) | |
| res.render "main/upload" | |
| signature: s | |
| policy: p | |
| uid: uuid.v1() | |
| aws_key: AWS_KEY | |
| aws_bucket: AWS_BUCKET | |
| signature = (policy) -> | |
| crypto.createHmac("sha1", AWS_SECRET).update(policy).digest("base64") | |
| policy = () -> | |
| s3Policy = | |
| { | |
| expiration: moment.utc().add('minutes', 30).format('YYYY-MM-DDTHH:mm:ss\\Z') | |
| conditions: [ | |
| { bucket: settings.aws_img_bucket } | |
| { acl: "public-read-write" } | |
| { success_action_status: '201' } | |
| ["starts-with", "$key", ""] | |
| ["starts-with", "$Content-Type", "image/"] | |
| ] | |
| } | |
| new Buffer(JSON.stringify(s3Policy)).toString("base64") |
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| <?xml version="1.0" encoding="UTF-8"?> | |
| <CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> | |
| <CORSRule> | |
| <AllowedOrigin>*</AllowedOrigin> | |
| <AllowedMethod>GET</AllowedMethod> | |
| <AllowedMethod>POST</AllowedMethod> | |
| <AllowedMethod>PUT</AllowedMethod> | |
| <MaxAgeSeconds>3000</MaxAgeSeconds> | |
| <AllowedHeader>*</AllowedHeader> | |
| </CORSRule> | |
| </CORSConfiguration> |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="/js/jquery-1.8.2.min.js"></script> | |
| <script type="text/javascript" src="/js/jquery.ui.widget.js"></script> | |
| <script type="text/javascript" src="/js/jquery.fileupload.js"></script> | |
| <script type="text/javascript"> | |
| $(function() { | |
| $('#fileupload').fileupload({ | |
| url: 'https://{{ aws_bucket }}.s3.amazonaws.com/', | |
| type: 'POST', | |
| autoUpload: true, | |
| }).bind('fileuploadsubmit', function (e, data) { | |
| data.formData = { | |
| "key": "${filename}", | |
| "AWSAccessKeyId": "{{ aws_key }}", | |
| "acl": "public-read-write", | |
| "policy": "{{ policy }}", | |
| "signature": "{{ signature }}", | |
| "success_action_status": "201", | |
| "Content-Type": data.files[0].type | |
| } | |
| }) | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <form action="/upload" method="post" enctype="multipart/form-data"> | |
| <input type="file" id="fileupload" name="file"> | |
| <input type="text" name="content-type" value="text/plain" /> | |
| <input type="submit" value="Save"> | |
| </form> | |
| </body> | |
| </html> | |
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