Ruby on Rails - 来自 Paypal 的参数：utf-8 中的无效字节序列

Posted 2023-02-22

【中文标题】Ruby on Rails - 来自 Paypal 的参数：utf-8 中的无效字节序列

【英文标题】：Ruby on Rails - params from Paypal : invalid byte sequence in utf-8

【发布时间】：2014-12-21 17:30:15

【问题描述】：

我正在关注 this tutorial to integrate Paypal 到我的 Rails 应用程序，但我的钩子有问题。 Paypal 通过 POST 将网址返回给我，但我一直有错误：

ArgumentError (invalid byte sequence in UTF-8):
  app/controllers/purchases_controller.rb:24:in `hook'

这是我的钩子：

protect_from_forgery except: [:hook]
    def hook
        params.permit! # Permit all Paypal input params
        status = params[:payment_status]
        if status == "Completed"
          @purchase = Purchase.find params[:invoice]
          Line 24 --> @purchase.update_attributes notification_params: params, status: status, transaction_id: params[:txn_id], date: Time.now
        end
        render nothing: true
    end

我尝试了多种解决方案，例如notification_params: params.encoding(xxx) 或force_encode(xxx)，但均未成功。我不能使用encode 或其他什么，因为params 是ActiveRecord::Parameters，而不是String...

问题似乎是，在 Paypal 中我的名字是 "Stéphane"，但它返回 "St\xE9phane"。

这是来自服务器的完整日志：

Started POST "/hook" for 127.0.0.1 at 2014-10-26 11:59:51 +0100
Processing by PurchasesController#hook as html
  Parameters: "mc_gross"=>"1.00", "invoice"=>"19", "protection_eligibility"=>"Eligible", "address_status"=>"unconfirmed", "payer_id"=>"FSXBUQDGG6KWN", "tax"=>"0.00", "address_street"=>"Av. de la Pelouse, 87648672 Mayet", "payment_date"=>"03:57:09 Oct 26, 2014 PDT", "payment_status"=>"Completed", "charset"=>"windows-1252", "address_zip"=>"75002", "first_name"=>"St\xE9phane", "mc_fee"=>"0.34", "address_country_code"=>"FR", "address_name"=>"St\xE9phane Xxxxx", "notify_version"=>"3.8", "custom"=>"", "payer_status"=>"verified", "business"=>"[e-mail]", "address_country"=>"France", "address_city"=>"Paris", "quantity"=>"1", "verify_sign"=>"AOLXbVgQrAtqa0Lllz6erhuaVkd-ADHLMH5k6uuEypyAZ7WCQUuOpfxY", "payer_email"=>"[e-mail]", "txn_id"=>"5SD166511T176754U", "payment_type"=>"instant", "last_name"=>"Xxxxx", "address_state"=>"Alsace", "receiver_email"=>"[e-mail]", "payment_fee"=>"0.34", "receiver_id"=>"ZNER97N82WKY2", "txn_type"=>"web_accept", "item_name"=>"XXXX", "mc_currency"=>"USD", "item_number"=>"1", "residence_country"=>"FR", "test_ipn"=>"1", "handling_amount"=>"0.00", "transaction_subject"=>"", "payment_gross"=>"1.00", "shipping"=>"0.00", "ipn_track_id"=>"d4e0d603abd89"
  User Load (0.4ms)  SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
  Purchase Load (0.2ms)  SELECT  "purchases".* FROM "purchases"  WHERE "purchases"."id" = ?  ORDER BY created_at DESC LIMIT 1  [["id", 19]]
   (0.1ms)  begin transaction
   (0.1ms)  rollback transaction
Completed 500 Internal Server Error in 11ms

ArgumentError (invalid byte sequence in UTF-8):
  app/controllers/purchases_controller.rb:24:in `hook'

谢谢

【问题讨论】：

你试过rack-utf8_sanitizer吗？

是的@papirtiger，我遇到了同样的错误

【参考方案1】：

经过更深入的搜索，我找到了正确的解决方案：https://***.com/a/13504253/1805275

【参考方案2】：

在多次尝试都没有成功后，我决定绕过这个问题。由于数据库字段是一个文本列，我所做的是创建一个包含所有参数的字符串。之后，我能够将我的字符串存储到我的文本字段数据库列中。

protect_from_forgery except: [:hook]
def hook
  params.permit! # Permit all Paypal input params
  status = params[:payment_status]
  if status == "Completed"

    @purchase = Purchase.find params[:invoice]
    parameters = String.new
    params.each do |key, value|
      parameters += key + " = " + value + " | "
    end

    @purchase.update_attributes notification_params: parameters, status: status, transaction_id: params[:txn_id], date: Time.now
  end

  render nothing: true
end