1 # Copyright (C) The Arvados Authors. All rights reserved.
3 # SPDX-License-Identifier: AGPL-3.0
9 class ApiError < StandardError
10 attr_reader :api_response, :api_response_s, :api_status, :request_url
12 def initialize(request_url, errmsg)
13 @request_url = request_url
15 errors = @api_response[:errors]
16 if not errors.is_a?(Array)
17 @api_response[:errors] = [errors || errmsg]
23 class NoApiResponseException < ApiError
24 def initialize(request_url, exception)
25 @api_response_s = exception.to_s
27 "#{exception.class.to_s} error connecting to API server")
31 class InvalidApiResponseException < ApiError
32 def initialize(request_url, api_response)
33 @api_status = api_response.status_code
34 @api_response_s = api_response.content
35 super(request_url, "Unparseable response from API server")
39 class ApiErrorResponseException < ApiError
40 def initialize(request_url, api_response)
41 @api_status = api_response.status_code
42 @api_response_s = api_response.content
43 @api_response = Oj.load(@api_response_s, :symbol_keys => true)
44 errors = @api_response[:errors]
45 if errors.respond_to?(:join)
46 errors = errors.join("\n\n")
50 super(request_url, "#{errors} [API: #{@api_status}]")
54 class AccessForbiddenException < ApiErrorResponseException; end
55 class NotFoundException < ApiErrorResponseException; end
56 class NotLoggedInException < ApiErrorResponseException; end
58 ERROR_CODE_CLASSES = {
59 401 => NotLoggedInException,
60 403 => AccessForbiddenException,
61 404 => NotFoundException,
64 @@profiling_enabled = Rails.configuration.Workbench.ProfilingEnabled
67 # An API client object suitable for handling API requests on behalf
68 # of the current thread.
69 def self.new_or_current
70 # If this thread doesn't have an API client yet, *or* this model
71 # has been reloaded since the existing client was created, create
72 # a new client. Otherwise, keep using the latest client created in
74 unless Thread.current[:arvados_api_client].andand.class == self
75 Thread.current[:arvados_api_client] = new
77 Thread.current[:arvados_api_client]
82 @client_mtx = Mutex.new
85 def api(resources_kind, action, data=nil, tokens={}, include_anon_token=true)
90 @client_mtx.synchronize do
91 @api_client = HTTPClient.new
92 @api_client.ssl_config.timeout = Rails.configuration.Workbench.APIClientConnectTimeout
93 @api_client.connect_timeout = Rails.configuration.Workbench.APIClientConnectTimeout
94 @api_client.receive_timeout = Rails.configuration.Workbench.APIClientReceiveTimeout
95 if Rails.configuration.TLS.Insecure
96 @api_client.ssl_config.verify_mode = OpenSSL::SSL::VERIFY_NONE
98 # Use system CA certificates
99 ["/etc/ssl/certs/ca-certificates.crt",
100 "/etc/pki/tls/certs/ca-bundle.crt"]
101 .select { |ca_path| File.readable?(ca_path) }
102 .each { |ca_path| @api_client.ssl_config.add_trust_ca(ca_path) }
104 if Rails.configuration.Workbench.APIResponseCompression
105 @api_client.transparent_gzip_decompression = true
110 resources_kind = class_kind(resources_kind).pluralize if resources_kind.is_a? Class
111 url = "#{self.arvados_v1_base}/#{resources_kind}#{action}"
113 # Clean up /arvados/v1/../../discovery/v1 to /discovery/v1
114 url.sub! '/arvados/v1/../../', '/'
116 anon_tokens = [Rails.configuration.Users.AnonymousUserToken].select { |x| !x.empty? && include_anon_token }
119 'reader_tokens' => ((tokens[:reader_tokens] ||
120 Thread.current[:reader_tokens] ||
122 anon_tokens).to_json,
126 if v.is_a? String or v.nil?
133 query[k] = Oj.dump(v, mode: :compat)
137 query["_method"] = "GET"
140 if @@profiling_enabled
141 query["_profile"] = "true"
145 "Accept" => "application/json",
146 "Authorization" => "OAuth2 " +
147 (tokens[:arvados_api_token] ||
148 Thread.current[:arvados_api_token] ||
150 "X-Request-Id" => Thread.current[:request_id] || '',
153 profile_checkpoint { "Prepare request #{query["_method"] or "POST"} #{url} #{query[:uuid]} #{query.inspect[0,256]}" }
154 msg = @client_mtx.synchronize do
156 @api_client.post(url, query, headers)
158 raise NoApiResponseException.new(url, exception)
161 profile_checkpoint 'API transaction'
162 if @@profiling_enabled
163 if msg.headers['X-Runtime']
164 Rails.logger.info "API server: #{msg.headers['X-Runtime']} runtime reported"
166 Rails.logger.info "Content-Encoding #{msg.headers['Content-Encoding'].inspect}, Content-Length #{msg.headers['Content-Length'].inspect}, actual content size #{msg.content.size}"
170 resp = Oj.load(msg.content, :symbol_keys => true)
171 rescue Oj::ParseError
175 if not resp.is_a? Hash
176 raise InvalidApiResponseException.new(url, msg)
177 elsif msg.status_code != 200
178 error_class = ERROR_CODE_CLASSES.fetch(msg.status_code,
179 ApiErrorResponseException)
180 raise error_class.new(url, msg)
184 Rails.logger.info "API client: " \
185 "#{resp.delete(:_profile)[:request_time]} request_time"
187 profile_checkpoint 'Parse response'
191 def self.patch_paging_vars(ary, items_available, offset, limit, links=nil)
193 (class << ary; self; end).class_eval { attr_accessor :items_available }
194 ary.items_available = items_available
197 (class << ary; self; end).class_eval { attr_accessor :offset }
201 (class << ary; self; end).class_eval { attr_accessor :limit }
205 (class << ary; self; end).class_eval { attr_accessor :links }
211 def unpack_api_response(j, kind=nil)
212 if j.is_a? Hash and j[:items].is_a? Array and j[:kind].match(/(_list|List)$/)
213 ary = j[:items].collect { |x| unpack_api_response x, x[:kind] }
214 links = ArvadosResourceList.new Link
215 links.results = (j[:links] || []).collect do |x|
216 unpack_api_response x, x[:kind]
218 self.class.patch_paging_vars(ary, j[:items_available], j[:offset], j[:limit], links)
219 elsif j.is_a? Hash and (kind || j[:kind])
220 oclass = self.kind_class(kind || j[:kind])
223 childkind = j["#{k.to_s}_kind".to_sym]
225 j[k] = self.unpack_api_response(j[k], childkind)
228 oclass.new.private_reload(j)
237 def arvados_login_url(params={})
238 uri = URI.parse(Rails.configuration.Services.Controller.ExternalURL.to_s)
239 if Rails.configuration.testing_override_login_url
240 uri = URI(Rails.configuration.testing_override_login_url)
243 uri.query = URI.encode_www_form(params)
247 def arvados_logout_url(params={})
248 arvados_login_url(params).sub('/login','/logout')
252 # workaround Ruby 2.3 bug, can't duplicate URI objects
253 # https://github.com/httprb/http/issues/388
254 u = URI.parse(Rails.configuration.Services.Controller.ExternalURL.to_s)
255 u.path = "/arvados/v1"
260 @@discovery ||= api '../../discovery/v1/apis/arvados/v1/rest', ''
264 kind.match(/^arvados\#(.+?)(_list|List)?$/)[1].pluralize.classify.constantize rescue nil
267 def class_kind(resource_class)
268 resource_class.to_s.underscore
271 def self.class_kind(resource_class)
272 resource_class.to_s.underscore
276 def profile_checkpoint label=nil
277 return if !@@profiling_enabled
278 label = yield if block_given?
280 if label and @profile_t0
281 Rails.logger.info "API client: #{t - @profile_t0} #{label}"