想要将 Facebook 图片保存到我的 rails 应用中

Want to save facebook image into my rails app

我正在使用 ominauth 来注册我的 rails 中的用户 app.i 也有一个包含电子邮件地址的基本注册选项。因此,对于这两个用户,我必须在我的文件系统中保存上传用户图片,我为我的电子邮件用户定期上传文件,但对于 FB 用户,我希望他们的图片保存在我的光盘中,这样我就可以使用相同的代码而不使用 FB 图 link 显示时。

FB 以这种格式发送图片并附上图 API

http://graph.facebook.com/100007619644580/picture?type=large

如何将其保存在我存储所有用户图像的 public 文件夹中。

我试过了

directory = "public/data/orig/"
      #name = num1+'_'+params[:upload]['datafile'].original_filename
      name = "new_name_for image"
      path = File.join(directory, name)
      #File.open(path, "wb") { |f| f.write(params[:upload_hover]['datafile'].read) }

      File.open(path, 'wb') do |file|
        file << open('http://graph.facebook.com/100007619644580/picture?type=large').read
      end

但它给我错误

No such file or directory @ rb_sysopen - http://graph.facebook.com/100007619644580/picture?type=large

如果您有任何其他解决方案,请告诉我。

使用您的模型通过回形针保存您的 Facebook 图片 见下文:

member model
def self.from_omniauth(auth, signed_in_resource=nil)
    member = Member.where(:provider => auth.provider, :uid => auth.uid).first
    if member
      member.member_pic =  "https://graph.facebook.com/#{auth["uid"]}/picture?type=large"
      member.save
      return member
    else
      registered_member = Member.where(:email => auth.info.email).first
      if registered_member
        return registered_member
      else

        member = Member.create(name:auth.extra.raw_info.name,
          provider:auth.provider,
          uid:auth.uid,
          email:auth.info.email,
          member_pic: "https://graph.facebook.com/#{auth["uid"]}/picture?type=large",
          password:Devise.friendly_token[0,20]
          )
      end    
    end
  end

感谢您的回答,是的,我可以使用回形针 gem 但我已经在使用 cloudinary 上传图片所以我不想使用其他基于 gem 的图片来强制从 fb 用户配置文件保存文件。 我能够锻炼以下代码更改。

omniauth.rb

:secure_image_url => true

对于带有 :scope 的最后一个参数,这允许我和安全 URL。

在我的授权控制器中

 img_path = env["omniauth.auth"]["info"]["image"].gsub(/$/,'?type=large')
    require "open-uri"

  num1 = 'logo_'+SecureRandom.hex(5)
  img_name = num1+'_fbimage.jpg'
  directory = "public/data/orig/org"
  path = File.join(directory, img_name)
  File.open(path, 'wb') do |file|
    file << open(img_path).read
  end  

require "open-uri":secure_image_url => true 帮了我大忙。

omniauth.rb

:secure_image_url => true

真正做到了。

我有一个多态 Attachment class 我附加到 user.photo.

这是我的“交互器”和 Attachment class 片段:

class CreateAttachmentFromUrl
  include Interactor
  require "open-uri"

  ## Create user service object
  # @param url => url
  # @param user => current_user
  def call
    url = context.url
    user = context.user

    file = nil
    begin
      file = URI.open(url)
    rescue => e
      file = File.open('user_avatar.jpeg', 'wb') do |file|
        file << URI.open(url).read
      end
    end

    context.attachment = Attachment.create!({ user: user }) do |a|
      a.data.attach(io: file, filename: 'user_avatar.jpeg')
    end

  rescue => e
    context.fail!(message: e.message)
  end
end

include Rails.application.routes.url_helpers

class Attachment < ApplicationRecord
  has_one_attached :data
  belongs_to :user, required: true
  belongs_to :attachable, polymorphic: true, optional: true

  def url
    if data.attached?
      uri = URI(data.service_url)
      uri.query = nil
      uri.to_s
    else
      nil
    end
  end
end