use qiniu-rs v3

Gemfile.lock

@@ -3,7 +3,7 @@ PATH
   specs:
     paperclip-qiniu (0.0.2)
       paperclip
-      qiniu-rs
+      qiniu-rs (~> 3.0)
 
 GEM
   remote: https://rubygems.org/

lib/paperclip-qiniu/exceptions.rb

+module Paperclip
+  module Qiniu
+    class Error < StandardError; end
+    class UploadFailed < Error; end
+  end
+end

lib/paperclip/storage/qiniu.rb

+require 'paperclip-qiniu/exceptions'
+
 module Paperclip
   module Storage
     module Qiniu
@@ -74,14 +76,16 @@ module Paperclip
       end
 
       def upload(file, path)
-        remote_upload_url = ::Qiniu::RS.put_auth
-        opts = {:url                => remote_upload_url,
+        upload_token = ::Qiniu::RS.generate_upload_token :scope => bucket
+        opts = {:uptoken            => upload_token,
                  :file               => file.path,
                  :key                => path,
                  :bucket             => bucket,
                  :mime_type          => file.content_type,
                  :enable_crc32_check => true}
-        ::Qiniu::RS.upload opts
+        unless ::Qiniu::RS.upload_file(opts)
+          raise Paperclip::Qiniu::UploadFailed
+        end
       end
 
       def bucket

paperclip-qiniu.gemspec

@@ -15,6 +15,6 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.version       = Paperclip::Qiniu::VERSION
   gem.add_dependency 'paperclip'
-  gem.add_dependency 'qiniu-rs'
+  gem.add_dependency 'qiniu-rs', '~> 3.0'
   gem.add_development_dependency 'rspec'
 end