ruby on rails aliyun oss图片上传之通过url上传和本地上传

require 'aliyun/oss'
module Aliyun
  class AliyunOssAchieve
    def self.client 
      @client = Aliyun::OSS::Client.new(
        endpoint: Rails.configuration.application['ALIYUN_OSS_ENDPOINT'],
        access_key_id: Rails.configuration.application['ALIYUN_OSS_ACCESS_KEY_ID'],
        access_key_secret: Rails.configuration.application['ALIYUN_OSS_ACCESS_KEY_SECRET']
      )
    end
  
    '''
    流式上传
    file_key: 文件名， oss文件夹是已文件夹名称+文件名组成， 如product/test.png
    io_stream: 文件流
    '''
    def self.upload_by_io(file_key, io_stream) 
      bucket_name = Rails.configuration.application['ALIYUN_OSS_BUCKET']
      bucket = client.get_bucket(bucket_name)
      bucket.put_object(file_key) { |stream| stream << io_stream }
    end
  
    '''
    图片链接上传
    url: 图片链接，需要完整的图片网址
    dir: 上传文件夹名称
    file_name: 文件名称
    '''
    def self.upload_by_url(url, dir = nil, file_name = nil)
      return if url.blank?
      # 获取文件名称
      name = file_name.presence || Tools::URL.file_name(url)
      file_name = name
      unless dir.blank?
        file_name = dir + '/' + name
      end
      response = Faraday.get(url)
      upload_by_io(file_name, response.body)
  
      file_name
    end
  
    '''
    本地上传
    url: 图片链接，需要完整的图片网址
    dir: 上传文件夹名称
    filename: 文件名称
    '''
    def self.upload_by_local(local_file, dir = nil, file_name = nil)
      file_key = dir + '/' + file_name
      bucket_name = Rails.configuration.application['ALIYUN_OSS_BUCKET']
      bucket = client.get_bucket(bucket_name)
      bucket.put_object(file_key, :file => local_file)
    end
  
    '''
    生成下载链接
    file_key: 文件名， oss文件夹是已文件夹名称+文件名组成， 如product/test.png
    limit_time: url有效期，单位： 秒
    '''
    def self.download_url(file_key, limit_time = 100) 
      # true 表示链接带签名
      bucket_name = Rails.configuration.application['ALIYUN_OSS_BUCKET']
      bucket = client.get_bucket(bucket_name)
      bucket.object_url(file_key, true, limit_time)
    end
  
    '''
    删除文件
    file_key: 文件名， oss文件夹是已文件夹名称+文件名组成， 如product/test.png
    '''
    def self.delete_oss(file_key)
      bucket_name = Rails.configuration.application['ALIYUN_OSS_BUCKET']
      bucket = client.get_bucket(bucket_name)
      bucket.delete_object(file_key)
    end
  
  end
end