Class: CarrierWave::Nos::NosClient

Inherits:
Object
  • Object
show all
Defined in:
lib/carrierwave/nos/nos_client.rb

Instance Method Summary collapse

Constructor Details

#initialize(access_key, secrete_key, bucket_name, host = 'nos-eastchina1.126.net') ⇒ NosClient

Returns a new instance of NosClient.



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# File 'lib/carrierwave/nos/nos_client.rb', line 9

def initialize(access_key, secrete_key, bucket_name, host = 'nos-eastchina1.126.net')
  @access_key = access_key
  @secret_key = secrete_key
  @bucket_name = bucket_name
  @host = host
end

Instance Method Details

#complete_multi_upload(object_key, upload_id, part_info) ⇒ Object 



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# File 'lib/carrierwave/nos/nos_client.rb', line 111

def complete_multi_upload(object_key, upload_id, part_info)
  data = '<CompleteMultipartUpload>'
  part_info.each do |part_num, etag|
    data += "<Part><PartNumber>#{part_num}</PartNumber><ETag>#{etag}</ETag></Part>"
  end
  data += '</CompleteMultipartUpload>'
  send_request('POST', @bucket_name, "#{object_key}?uploadId=#{upload_id}", data)
end

#init_multi_upload(object_key) ⇒ Object 



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# File 'lib/carrierwave/nos/nos_client.rb', line 91

def init_multi_upload(object_key)
  resp = send_request('POST', @bucket_name, "#{object_key}?uploads", nil)
  if resp.code == 200
    doc = REXML::Document.new(resp.body)
    upload_id = REXML::XPath.first(doc, '//UploadId/text()')
    return upload_id
  else
    return false
  end
end

#put_file(file, object_key) ⇒ Object 



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# File 'lib/carrierwave/nos/nos_client.rb', line 16

def put_file(file, object_key)
  if file.class != File
    raise ArgumentError.new("File object type needed, but got #{file.class}")
  end

  resp = if file.size > 100 * 1024 * 1024
           upload_large_file(file, object_key)
         else
           send_request('PUT', @bucket_name, object_key, file)
         end
  resp
end

#send_request(method, bucket, object_key, data = nil) ⇒ Object

PUT: send_request(‘PUT’, ‘BUCKET_NAME’, ‘conan.jpg’, data) param: data = File.open(FILE_PATH, ‘rb’) GET: send_request(‘GET’, ‘BUCKET_NAME’, ‘conan.jpg’, nil) DELETE: send_request(‘DELETE’, ‘BUCKET_NAME’, ‘conan.jpg’, nil) HEAD: send_request(‘HEAD’, ‘BUCKET_NAME’, ‘conan.jpg’, nil) POST: send_request(‘POST’, ‘BUCKET_NAME’, “#object_key?uploads”, nil) send request and get response



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# File 'lib/carrierwave/nos/nos_client.rb', line 36

def send_request(method, bucket, object_key, data = nil)
  unless %w[GET DELETE HEAD PUT POST].include?(method)
    raise ArgumentError.new('Only support following http method: GET DELETE HEAD PUT POST')
  end
  if data.nil?
    content_type = ''
  else
    mime = MIME::Types.type_for(object_key).first
    content_type = if mime.nil?
                     'application/octet-stream'
                   else
                     mime.content_type
                   end
  end
  # ruby url encode ignore '/', so replace '/' with '%2f' manually
  resource = "/#{bucket}/#{URI.encode(object_key).gsub('/', '%2F')}"
  headers = get_headers(method, resource, content_type, data.nil? ? nil : data.size)
  url = "#{@bucket_name}.#{@host}" + "/#{URI.encode(object_key).gsub('/', '%2F')}"

  if method == 'PUT'
    res = RestClient.put(url, data, headers)
  elsif method == 'GET'
    res = RestClient.get(url, headers)
  elsif method == 'DELETE'
    res = RestClient.delete(url, headers)
  elsif method == 'HEAD'
    res = RestClient.head(url, headers)
  elsif method == 'POST'
    res = RestClient.post(url, data, headers)
  end

  res
end

#upload_large_file(file, object_key) ⇒ Object 



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# File 'lib/carrierwave/nos/nos_client.rb', line 70

def upload_large_file(file, object_key)
  upload_id = init_multi_upload(object_key)
  if upload_id == false
    return 400
  end
  part_size = 50 * 1024 * 1024
  part_num = 1
  part_info = {}
  until file.eof?
    part_data = file.read(part_size)
    etag = upload_part(object_key, part_num, upload_id, part_data)
    if etag != false
      part_info[part_num] = etag
      part_num += 1
    else
      return 400
    end
  end
  complete_multi_upload(object_key, upload_id, part_info)
end

#upload_part(object_key, part_num, upload_id, data) ⇒ Object 



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# File 'lib/carrierwave/nos/nos_client.rb', line 102

def upload_part(object_key, part_num, upload_id, data)
  resp = send_request('PUT', @bucket_name, "#{object_key}?partNumber=#{part_num}&uploadId=#{upload_id}", data)
  if resp.code == 200
    return resp.headers[:etag]
  else
    return false
  end
end