我使用omniauth尝试填充Google登录中的某些字段时出现了最近的错误

Encoding :: CompatibilityError：不兼容的字符编码：ASCII-8BIT和UTF-8

"omniauth"=>
  {"user_info"=>
    {"name"=>"Joe McÙisnean",
     "last_name"=>"McÙisnean",
     "first_name"=>"Joe",
     "email"=>"someemail@gmail.com"},
   "uid"=>
    "https://www.google.com/accounts/o8/id?id=AItOawnQmfdfsdfsdfdsfsdhGWmuLTiX2Id40k",
   "provider"=>"google_apps"}

在我的用户模型中

  def apply_omniauth(omniauth)
    #add some info about the user
    self.email = omniauth['user_info']['email'] if email.blank?
    self.name = omniauth['user_info']['name'] if name.blank?
    self.name = omniauth['user_info'][:name] if name.blank?
    self.nickname = omniauth['user_info']['nickname'] if nickname.blank?
    self.nickname = name.gsub(' ','').downcase if nickname.blank?

    unless omniauth['credentials'].blank?
      user_tokens.build(:provider => omniauth['provider'], 
                        :uid => omniauth['uid'],
                        :token => omniauth['credentials']['token'], 
                        :secret => omniauth['credentials']['secret'])
    else
      user_tokens.build(:provider => omniauth['provider'], :uid => omniauth['uid'])
    end
  end

我对UTF编码知之甚少，所以我不确定我应该在哪里指定编码？ 但是我猜在它进入用户模型并创建之前它已经到了，我不确定该怎么做？

更新：

Rails 3.0.10 Omniauth 0.2.6 Ruby 1.9.2 PG 0.11.0

默认编码是UTF-8

这似乎并不是这样，所以我进一步挖掘并发现了这个观点：

Showing /Users/holden/Code/someapp/app/views/users/registrations/_signup.html.erb where line #5 raised:

incompatible character encodings: ASCII-8BIT and UTF-8
Extracted source (around line #5):

2:   <%= f.error_messages %>
3: 
4:   <%= f.input :name, :hint => 'your real name' %>
5:   <%= f.input :nickname, :hint => 'Username of your choosing' %>
6: 
7:   <% unless @user.errors[:email].present? or @user.email %>
8:     <%= f.input :email, :as => :hidden %>

更新更新：

它似乎是omniauth宝石是返回ASCII-8BIT字符，所以我的下一个问题是我如何解析散列并将其转换回UTF8，所以我的应用程序不会爆炸？

session[:omniauth] = omniauth.to_utf8

这种疯狂的骑行的另一个部分是当我把它输入控制台时

d={"user_info"=>{"email"=>"someemail@gmail.com", "first_name"=>"Joe", "last_name"=>"McxC3x99isnean", "name"=>"Joe McxC3x99isnean"}}

它会自动将其转换为UTF-8，但在推入会话时会爆炸

 => {"user_info"=>{"email"=>"someemail@gmail.com", "first_name"=>"Joe", "last_name"=>"McÙisnean", "name"=>"Joe McÙisnean"}} 

如果曾经有过一次，这是一场痛苦的噩梦。

---

Omniauth被证明是生成ASCII-8BIT的问题

我最终迫使Omniauth哈希提交使用：

omn​​iauth_controller.rb

session[:omniauth] = omniauth.to_utf8

添加递归方法强制将恶意ASCII-8BIT转换为UTF8

some_initializer.rb

class Hash
  def to_utf8
    Hash[
      self.collect do |k, v|
        if (v.respond_to?(:to_utf8))
          [ k, v.to_utf8 ]
        elsif (v.respond_to?(:encoding))
          [ k, v.dup.force_encode('UTF-8') ]
        else
          [ k, v ]
        end
      end
    ]
  end
end

特别感谢tadman

递归地将包含非UTF字符的散列转换为UTF

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