presinged_post.rb

require 'mss-sdk'
require 'rest-client'

(access_key, secret_key, bucket_name, object_key, file_name, callback_url) = ARGV
unless access_key && secret_key && bucket_name && object_key && file_name && callback_url
  puts "Usage: presigned_pose.rb <ACCESS_KEY> <SECRET_KEY> <BUCKET_NAME> <OBJECT_KEY> <FILE_NAME> <CALLBACK_URL>"
  exit 1
end

# Server End
s3 = MSS::S3.new({
#:s3_endpoint => 'mtmss.com',
    :s3_endpoint => 'msstest-corp.sankuai.com',
    :use_ssl => false,
    :s3_force_path_style => true,
    :access_key_id => access_key,
    :secret_access_key => secret_key})

post_info_str = s3.presigned_post_info(
    bucket_name, #bucket name
    {
      :expires => 864000,
      :callback_url => callback_url,
      :callback_body => "name=${fname}&bucket=${bucket}&key=${key}&hash=${etag}&size=${fsize}&server=${x-amz-meta-server}&client=${x-amz-meta-client}",
      :callback_body_type => "application/x-www-form-urlencoded",
    }).to_json
# Client End
client_info = {
  "x-amz-meta-client" => "Hello Client!",
  "key" => object_key,
  "value" => File.new(file_name, 'rb'),
}
post_info_obj = JSON.parse(post_info_str)
RestClient.post post_info_obj["url"], post_info_obj["form"].merge(client_info)

####################################################################################################

token = s3.presigned_post_token(
    bucket_name, #bucket name
    {
      :expires => 864000,
      :callback_url => callback_url,
      :callback_body => "name=${fname}&bucket=${bucket}&key=${key}&hash=${etag}&size=${fsize}&server=${x-amz-meta-server}&client=${x-amz-meta-client}",
      :callback_body_type => "application/x-www-form-urlencoded",
    })
new_post_info = {
  "key" => object_key,
  "token" => token,
  "x-amz-meta-client" => "Hello Client!",
  "value" => File.new(file_name, 'rb'),
}
RestClient.post post_info_obj["url"], new_post_info
puts new_post_info.to_json