-
-
Save risul/7d8996be59233e1924b3 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Requires https://www.npmjs.org/package/s3-policy and https://www.npmjs.org/package/node-uuid | |
var config = require('env/' + process.env.NODE_ENV), | |
policy = require('s3-policy'), | |
uuid = require('node-uuid'); | |
// SETUP S3 | |
const AWS_ACCESS_KEY = config.s3.accessKey; | |
const AWS_SECRET_KEY = config.s3.secret; | |
const S3_BUCKET = config.s3.bucket; | |
// PRIVATE METHODS | |
function _getExtension(filename) { | |
var i = filename.lastIndexOf('.'); | |
return (i < 0) ? '' : filename.substr(i); | |
} | |
function _getCalculatedHash(b64) { | |
var result = crypto.createHmac('sha1', AWS_SECRET_KEY); | |
result.setEncoding('hex'); | |
result.write(b64); | |
result.end(); | |
return result.read(); | |
} | |
// PUBLIC METHODS | |
exports.signS3 = function signS3(req, res) { | |
var fileExtension = _getExtension(req.body.name), | |
filename = uuid.v4() + fileExtension, | |
acl = 'public-read', | |
p = policy({ | |
acl: acl, | |
secret: AWS_SECRET_KEY, | |
length: 5000000, // in bytes? | |
bucket: S3_BUCKET, | |
key: filename, | |
expires: new Date(Date.now() + 60000), | |
}), | |
result = { | |
'AWSAccessKeyId': AWS_ACCESS_KEY, | |
'key': filename, | |
'policy': p.policy, | |
'signature': p.signature | |
}; | |
res.write(JSON.stringify(result)); | |
res.end(); | |
}; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
var app = {}; | |
app.signS3RequestURL = '/admin/S3/sign'; | |
app.S3_BUCKET = 'http://your-bucket-name.s3.amazonaws.com/'; | |
app._dropzoneAcceptCallback = function _dropzoneAcceptCallback(file, done) { | |
file.postData = []; | |
$.ajax({ | |
url: app.signS3RequestURL, | |
data: { | |
name: file.name, | |
type: file.type, | |
size: file.size, | |
_csrf: $('#__createPostToken').val() // this is not needed to make Dropzone work, it's express related | |
}, | |
type: 'POST', | |
success: function jQAjaxSuccess(response) { | |
response = JSON.parse(response); | |
file.custom_status = 'ready'; | |
file.postData = response; | |
file.s3 = response.key; | |
$(file.previewTemplate).addClass('uploading'); | |
done(); | |
}, | |
error: function(response) { | |
file.custom_status = 'rejected'; | |
if (response.responseText) { | |
response = JSON.parse(response.responseText); | |
} | |
if (response.message) { | |
done(response.message); | |
return; | |
} | |
done('error preparing the upload'); | |
} | |
}); | |
}; | |
app._dropzoneSendingCallback = function(file, xhr, formData) { | |
$.each(file.postData, function(k, v) { | |
formData.append(k, v); | |
}); | |
formData.append('Content-type', ''); | |
formData.append('Content-length', ''); | |
formData.append('acl', 'public-read'); | |
}; | |
app._dropzoneCompleteCallback = function(file) { | |
var inputHidden = '<input type="hidden" name="attachments[]" value="'; | |
var json = { | |
url: app.S3_BUCKET + file.postData.key, | |
originalFilename: file.name | |
}; | |
console.log(json, JSON.stringify(json), JSON.stringify(json).replace('"', '\"')); | |
inputHidden += window.btoa(JSON.stringify(json)) + '" />'; | |
$('form#createPost').append(inputHidden); | |
} | |
app.setupDropzone = function setupDropzone() { | |
if ($('div#dropzone').length === 0) { | |
return; | |
} | |
Dropzone.autoDiscover = false; | |
app.dropzone = new Dropzone("div#dropzone", { | |
url: app.S3_BUCKET, | |
method: "post", | |
autoProcessQueue: true, | |
clickable: true, | |
maxfiles: 5, | |
parallelUploads: 3, | |
maxFilesize: 10, // in mb | |
maxThumbnailFilesize: 8, // 3MB | |
thumbnailWidth: 150, | |
thumbnailHeight: 150, | |
acceptedMimeTypes: "image/bmp,image/gif,image/jpg,image/jpeg,image/png", | |
accept: app._dropzoneAcceptCallback, | |
sending: app._dropzoneSendingCallback, | |
complete: app._dropzoneCompleteCallback | |
}); | |
}; | |
app.startup = function startup() { | |
app.setupDropzone(); | |
} | |
$(document).ready(app.startup); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment