Rails 身份验证令牌和 Ajax

Question

好吧，根据我在其他网站和堆栈溢出上读到的内容，Rails 会抛出此身份验证令牌错误，因为我的表单未传递令牌 - 这是一项安全功能。 这我明白了。

但我确实没有表格。 我这里有 ajax ——我的 javascript 将 id'ed 信息发布到处理函数中。

所以我的问题是，如何将身份验证令牌发送到我的控制器？

我的视图如下所示：

<% for transaction in @transactions %>
        <% if transaction["category"] == '' %>
        <% transaction["category"] = "Uncategorized" %>
                        <% end %>

                        <tr title = "<% if params[:type] %><%= params[:type] %><% else %>Purchases<% end %> <%= transaction["id"] %>" >

                            <td class="check"><a class="help" href="#"><img src="/images/icons/help.png" alt="?" /></a><input type="checkbox" /></td>
                            <td class="date"><% if transaction["date"] != "0000-00-00 00:00:00" %><%= transaction["date"].to_date.strftime("%B %d") %><% end %></td>

                            <% if params[:type] == "Bills" || params[:type] == "Reimbursements" %>
                            <td class="payee"><%= transaction["payee"] %></td>
                            <td class="details"><%= transaction["details"] %></td>
                            <% else %>
                            <td class="description"><% if transaction["detail"] == "undefined" %>n/a<% else %><%= transaction["detail"] %><% end %></td>
                            <td class="category">n/a</td>
                            <% end %>

                            <td class="amount">-$<%= transaction["amount"] %></td>
                        </tr>

                    <% end %>

相应的ajax如下：

/* send ids by ajax */
$('#tableActions li a').click(function() { 
    if(!$(this).hasClass('disabled')) {
        action = $(this).text();
        ids = new Array();
        i = 0;
        $('td.check input','#tableHolder').each(function() { if($(this).attr('checked')) { ids[i++] = $(this).parents('tr').attr('title'); } });
        $.ajax({
            type: "POST",
            url: "/bulkaction",
            data: "=" + action + "&ids=" + ids + "&authenticity_token=" + encodeURIComponent(AUTH_TOKEN),
            success: function(data){
                $('#tableHolder').html(data);
                /* bring back all functionality */
                initTable();
                /* set default sorting by date desc */
                $('th').removeClass('sortUp sortDown');
                $('th:eq(1)').addClass('sortDown'); 
                /* disable all actions */
                $('#tableActions li a').addClass('disabled');

            }
        });
    }
    return false;
});

我在控制器中的处理逻辑如下所示

    def bulkaction
            if request.post?
                ids = params[:ids]
                #Need to create a function here to parse out my string
                puts ids #for testing purposes, just put my ids onto the console
            end

puts "This function was accessed and ran."
end

最后控制台说

Processing UserController#bulkaction (for ::ffff:xx.xxx.xxx.xxx at 2009-07-06 23                                                                             :29:49) [POST]
  Parameters: {"ids"=>"Purchases 10040963"}

ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticit                                                                             yToken):
  /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
  /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
  /usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
  /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start'
  /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
  /usr/local/lib/ruby/1.8/webrick/server.rb:95:in `start'
  /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `each'
  /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `start'
  /usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start'
  /usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start'

如果有人能够告诉我哪里出了问题，那将非常有帮助。

Answer 1

解决了！ 将 ajax 更改为

data: "=" + action + "&ids=" + ids + "&authenticity_token=" + AUTH_TOKEN,

我添加到每个页面的头部

<%= javascript_tag "const AUTH_TOKEN = #{form_authenticity_token.inspect};" if protect_against_forgery? %>

Answer 2

如果您使用 jQuery，此技术效果很好。

http://henrik.nyh.se/2008/05/rails -authenticity-token-with-jquery

Answer 3

henrik.nyh.se 网站似乎已关闭。 该版本还包含一个错误，该错误将 get 请求变成了 Internet Explorer 的 post 请求。 此修复版本来自： http://www.justinball.com/2009/07/08/jquery-ajax-get-in-firefox-post-in-internet-explorer/

jQuery(document).ajaxSend(function(event, request, settings) {
  if (typeof(AUTH_TOKEN) == "undefined") return;
  if (settings.type == 'GET') return; // Don't add anything to a get request let IE turn it into a POST.
  settings.data = settings.data || "";
  settings.data += (settings.data ? "&" : "") + "authenticity_token=" + encodeURIComponent(AUTH_TOKEN);
});