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# File 'lib/pail.rb', line 32
def pail(options = {})
@bucket = ENV['S3_BUCKET']
@access_key_id = ENV['AWS_ACCESS_KEY_ID']
@secret_access_key = ENV['AWS_SECRET_ACCESS_KEY']
@options = options.dup
raise ArgumentError.new('a bucket, access key id and secret access key must be set') unless @bucket && @access_key_id && @secret_access_key
@options[:key] ||= 'uploads' @options[:acl] ||= 'public-read'
@options[:expiration_date] ||= 10.hours.from_now.utc.iso8601
@options[:max_filesize] ||= 104857600 @options[:content_type] ||= 'image/' @options[:filter_title] ||= 'Images'
@options[:filter_extensions] ||= 'jpg,jpeg,gif,png,bmp'
@options[:runtimes] ||= 'html5'
@options[:selectid] ||= 'selectfile'
@options[:cancelid] ||= 'resetupload'
@options[:progress_bar_class] ||= 'progress-bar progress-bar-striped active'
id = @options[:id] ? "_#{@options[:id]}" : ''
policy = Pail::Generate::policy(
@bucket,
@options[:expiration_date],
@options[:acl],
@options[:max_filesize]
)
signature = Pail::Generate::signature(@secret_access_key, policy)
out = ""
filters = "filters : [
{title : '#{@options[:filter_title]}', extensions : '#{@options[:filter_extensions]}'}
],"
if @options[:filters]
filters = 'filters : ['
filters = filters + @options[:filters].join(',')
filters = filters + "],"
end
out << javascript_tag(<<JAVASCRIPT
uploader = new plupload.Uploader({
browse_button : '#{@options[:selectid]}',
container : 'uploadcontainer',
runtimes : '#{@options[:runtimes]}',
url : 'https://s3.amazonaws.com/#{@bucket}/',
max_file_size : '#{number_to_human_size(@options[:max_filesize]).gsub(/ /,'').downcase}',
multipart: true,
multipart_params: {
'key': '#{@options[:key]}/${filename}',
'Filename': '${filename}', // adding this to keep consistency across the runtimes
'acl': '#{@options[:acl]}',
'Content-Type': '#{@options[:content_type]}',
'success_action_status': '201',
'AWSAccessKeyId' : '#{@access_key_id}',
'policy': '#{policy}',
'signature': '#{signature}'
},
// optional, but better be specified directly
file_data_name: 'file',
// re-use widget (not related to S3, but to Plupload UI Widget)
multiple_queues: true,
// Specify what files to browse for
#{filters}
// Flash settings
flash_swf_url : '/assets/plupload/Moxie.swf',
// Silverlight settings
silverlight_xap_url : '/assets/plupload/Moxie.xap',
});
placeholder = $('#uploadfile').children().first();
uploader.init()
var queueMaxima = 1;
// 1. Files Added
uploader.bind('FilesAdded', function(up, files) {
$.each(files, function(i, file) {
$('#uploadfile').empty().append(' \
<div id="' + file.id + '" class="progress"> \
<div class="#{@options[:progress_bar_class]}" role="progressbar" aria-valuenow="'+file.percent+'" aria-valuemin="0" aria-valuemax="100"> \
<span class="file-info">' + file.name + ' (' + plupload.formatSize(file.size) + ')</span>' +
'</div> \
</div>');
});
$('##{@options[:cancelid]}').removeClass('disabled')
if(uploader.files.length > queueMaxima){
while(uploader.files.length > queueMaxima){
if(uploader.files.length > queueMaxima){
x = uploader.files[queueMaxima-1]
$('#'+x.id).remove();
uploader.removeFile(uploader.files[queueMaxima-1]);
uploader.stop()
}
}
if(typeof(plupload_hook_removedExcessFromQueue) == "function"){plupload_hook_removedExcessFromQueue()}
}
up.start();
up.refresh(); // Reposition Flash/Silverlight
});
// 2. Right before Upload Starts
uploader.bind('BeforeUpload', function(up, file) {
$('#' + file.id + " .progress-bar")
.addClass('active')
});
// 2. Upload Progresses
uploader.bind('UploadProgress', function(up, file) {
$('#' + file.id + " .progress-bar")
.width(file.percent + "%")
.html('<span class="file-info">' + file.name + ' (' + plupload.formatSize(file.size) + ') ' + file.percent + "%</span>");
});
// 3. Error Occurs
uploader.bind('Error', function(up, err) {
if($('.file-info').length > 0){
error_element = $('.file-info')
}
else{
error_element = $('.progress')
}
error_element.html("Error: " + err.code + ", " + err.message + (err.file ? " File: " + err.file.name : ""));
$('#' + err.file.id + " .progress-bar")
.addClass('progress-bar-danger')
.removeClass('active')
});
// 4. File is Uploaded
uploader.bind('FileUploaded', function(up, file) {
$('#' + file.id + " .progress-bar")
.addClass('progress-bar-success')
.removeClass('active')
});
// 5. Stop button is clicked.
$('#uploadcontainer').on('click', '##{@options[:cancelid]}', function(){
uploader.stop();
$('#uploadfile').html(placeholder);
$('##{@options[:cancelid]}').addClass('disabled')
$('#' + file.id + " .progress-bar")
.removeClass('active')
uploader.refresh(); // Reposition Flash/Silverlight
});
window.uploader = uploader;
JAVASCRIPT
)
raw(out);
end
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