为什么我得到Zlib :: DataError？
我发布到我无法控制的远程服务器。 正在通过的参数肯定是问题的一个因素，但我很难弄清楚它为什么会失败。 看起来没有足够大的变化来创建错误。 我从未直接处理zlib压缩。 有没有办法获得更好的错误输出？ 例：
通过：
{"email" => "a@bc.com"} 这失败了：
{"email" => "a@bd.com"}
Ruby 2.2 / Rails 4
错误：
# # "invalid block type" [ 0] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:377:in `inflate'", [ 1] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:377:in `block in inflate_adapter'", [ 2] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/protocol.rb:411:in `call_block'", [ 3] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/protocol.rb:402:in `<<'", [ 4] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/protocol.rb:106:in `read'", [ 5] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:399:in `read'", [ 6] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:317:in `read_chunked'", [ 7] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:281:in `block in read_body_0'", [ 8] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:260:in `inflater'", [ 9] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:279:in `read_body_0'", [10] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:201:in `read_body'", [11] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:226:in `body'", [12] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http/response.rb:163:in `reading_body'", [13] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http.rb:1411:in `catch'", [14] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http.rb:1411:in `transport_request'", [15] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http.rb:1384:in `request'", [16] "/home/pete/.rvm/gems/ruby-2.2.2@umbie/gems/rest-client-1.6.9/lib/restclient/net_http_ext.rb:51:in `request'", [17] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http.rb:1377:in `block in request'", [18] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http.rb:853:in `start'", [19] "/home/pete/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/net/http.rb:1375:in `request'", [20] "/home/pete/.rvm/gems/ruby-2.2.2@umbie/gems/rest-client-1.6.9/lib/restclient/net_http_ext.rb:51:in `request'"
在response.rb中抛出错误的方法
def inflate_adapter(dest) if dest.respond_to?(:set_encoding) dest.set_encoding(Encoding::ASCII_8BIT) elsif dest.respond_to?(:force_encoding) dest.force_encoding(Encoding::ASCII_8BIT) end block = proc do |compressed_chunk| @inflate.inflate(compressed_chunk) do |chunk| # This is line 377 dest << chunk end end Net::ReadAdapter.new(block) end
第三方图书馆：
require 'net/http' require 'uri' require 'cgi' require 'rubygems' require 'json' module ConnectionHelper class Connection attr_accessor :practiceid attr_reader :token def initialize(version, key, secret, practiceid=nil) uri = URI.parse('https://api.remote_url.com/') @connection = Net::HTTP.new(uri.host, uri.port) @connection.use_ssl = true # Monkey patch to make Net::HTTP do proper SSL verification. # Background reading: # http://stackoverflow.com/a/9238221 # http://blog.spiderlabs.com/2013/06/a-friday-afternoon-troubleshooting-ruby-openssl-its-a-trap.html def @connection.proper_ssl_context! ssl_context = OpenSSL::SSL::SSLContext.new ssl_context.verify_mode = OpenSSL::SSL::VERIFY_PEER cert_store = OpenSSL::X509::Store.new cert_store.set_default_paths ssl_context.cert_store = cert_store @ssl_context = ssl_context end @connection.proper_ssl_context! # End monkey patch @version = version @key = key @secret = secret @practiceid = practiceid authenticate end def authenticate # :nodoc: auth_paths = { 'v1' => 'oauth', 'preview1' => 'oauthpreview', 'openpreview1' => 'oauthopenpreview', } request = Net::HTTP::Post.new("/#{auth_paths[@version]}/token") request.basic_auth(@key, @secret) request.set_form_data({'grant_type' => 'client_credentials'}) response = @connection.request(request) authorization = JSON.parse(response.body) @token = authorization['access_token'] end def path_join(*args) # :nodoc: head = '^/+' tail = '/+$' # add a slash to each slash-trimmed string, grab the non-empty ones, and join them up return args.map { |arg| '/' + arg.to_s.gsub(/#{head}|#{tail}/, '') }.select { |x| !x.empty? }.join('') end def call(request, body, headers, secondcall=false) begin request.set_form_data(body) headers.each { |k, v| request[k] = v } request['authorization'] = "Bearer #{@token}" response = @connection.request(request) if response.code == '401' && !secondcall authenticate return call(request, body, headers, secondcall=true) end return JSON.parse(response.body) rescue Exception => e puts e.message end end def POST(path, parameters=nil, headers=nil) url = path parameters ||= {} headers ||= {} request = Net::HTTP::Post.new(path_join(@version, @practiceid, url)) return call(request, parameters, headers) end private :authenticate, :path_join, :call end end
更新
当它失败时，我能够从Web视图API测试器获得有效响应。 我在下面发布了一个好的和坏的回复。 似乎远程服务器端存在validation错误，并且由于某种原因，zlib无法解析它们的响应。
不好的回应：
#Header Content-Type: application/json Date: Wed, 22 Jun 2016 19:39:59 GMT Nncoection: close Pragma: No-cache Server: Apache Vary: Accept-Encoding X-Mashery-Message-Id: 524sd54sd-21sd-s5d4-89ds-54sd54sd4s5d4 X-Mashery-Responder: some_site.com Transfer-Encoding: chunked Connection: keep-alive #Body { "fields": ["email", "mobilephone", "workphone", "zip"], "error": "Data for one or more of the fields listed above are required to successfully create or find a patient record. Note: invalid phone numbers are ignored." }
好的回应：
#Header Cache-Control: no-cache, no-store Content-Type: application/json Date: Wed, 22 Jun 2016 19:41:19 GMT Expires: Mon, 06 Jan 1975 16:00:00 GMT Nncoection: close Pragma: No-cache Server: Apache Vary: Accept-Encoding X-Mashery-Message-Id: s5ad4as5d-5s4d-5s4d-3545-s5d4s5d453s4d X-Mashery-Responder: some_site.com Content-Length: 22 Connection: keep-alive #Body [{ "personid": "4131" }]
我不知道它是否重要，但没有“接受编码”，它默认为：“gzip; q = 1.0，deflate; q = 0.6，identity; q = 0.3”。
net / http不知道如何处理响应。 解决方案是将请求’accept-encoding’设置为’identity’。
request.set_form_data(body) headers.each { |k, v| request[k] = v } request["User-Agent"] = "Mozilla/5.0" request["accept-encoding"] = "identity" request['authorization'] = "Bearer #{@token}"