我们的 ruby on rails 网站有一个 URI,我们的合作伙伴之一将 XML 数据发布到该 URI。
由于我们不想处理 XML,我们实际上只是将原始数据填充到数据库列中,并且不再进一步处理它。
但是,我们收到的一篇帖子在空气制动中给了我们这个错误:
ArgumentError: invalid %-encoding ("http://ns.hr-xml.org/2004-08-02"
userId="" password=""><BackgroundReportPackage type="report">
<ProviderReferenceId>....
使用回溯:
vendor/ruby-1.9.3/lib/ruby/1.9.1/uri/common.rb:898:in `decode_www_form_component'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils.rb:41:in `unescape'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils.rb:94:in `block (2 levels) in parse_nested_query'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils.rb:94:in `map'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils.rb:94:in `block in parse_nested_query'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils.rb:93:in `each'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils.rb:93:in `parse_nested_query'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/request.rb:332:in `parse_query'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/request.rb:209:in `POST'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/methodoverride.rb:26:in `method_override'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/methodoverride.rb:14:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/runtime.rb:17:in `call'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/lock.rb:15:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/action_dispatch/middleware/static.rb:63:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:136:in `forward'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:143:in `pass'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:155:in `invalidate'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:71:in `call!'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:51:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:479:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/application.rb:223:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/deflater.rb:13:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/content_length.rb:14:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/rack/log_tailer.rb:17:in `call'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:80:in `block in pre_process'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:78:in `catch'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:78:in `pre_process'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:53:in `process'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:38:in `receive_data'
vendor/bundle/ruby/1.9.1/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
vendor/bundle/ruby/1.9.1/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/backends/base.rb:63:in `start'
vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/server.rb:159:in `start'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler/thin.rb:13:in `run'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:268:in `start'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>'
script/rails:6:in `require'
script/rails:6:in `<main>'
问题是 POST 包含数据:
<ChargeOrComplaint>DRIVE WHILE BLOOD ALCOHOL LEVEL IS 0.08% OR MORE</ChargeOrComplaint>
大概这是有效的 XML,但最后的裸体%
导致0.08%
错误,因为它是通过 HTTP 来的,我猜 rack 期望它是 URL 编码的。
回溯表明这甚至在它到达我们的代码之前就已经发生了,所以我认为这与我们如何处理它没有任何关系。
那么我的问题:
1)问题出在哪里?Ruby 1.9.3 的实现decode_www_form_component
(在堆栈跟踪的顶部)?架子?我们合作伙伴的 POST 数据或标头?我们对 POST 的处理?
2) 通过 HTTP 发布的 XML 数据是否需要进行 URL 编码?
3) 这个 POST 是否需要一个标题才能让 Rack 正确解释它?(即:它是 XML 二进制数据,而不是 URL 编码的)。
4) 如果我无法让我们的合作伙伴更改他们发布给我们的内容,我们该如何解决?一些机架中间件?