services/api/app/controllers/arvados/v1/schema_controller.rb

   1 # Copyright (C) The Arvados Authors. All rights reserved.
   2 #
   3 # SPDX-License-Identifier: AGPL-3.0
   4
   5 class Arvados::V1::SchemaController < ApplicationController
   6   skip_before_action :catch_redirect_hint
   7   skip_before_action :find_objects_for_index
   8   skip_before_action :find_object_by_uuid
   9   skip_before_action :load_filters_param
  10   skip_before_action :load_limit_offset_order_params
  11   skip_before_action :load_read_auths
  12   skip_before_action :load_where_param
  13   skip_before_action :render_404_if_no_object
  14   skip_before_action :require_auth_scope
  15
  16   include DbCurrentTime
  17
  18   def index
  19     expires_in 24.hours, public: true
  20     send_json discovery_doc
  21   end
  22
  23   protected
  24
  25   def discovery_doc
  26     Rails.cache.fetch 'arvados_v1_rest_discovery' do
  27       Rails.application.eager_load!
  28       remoteHosts = {}
  29       Rails.configuration.RemoteClusters.each {|k,v| if k != :"*" then remoteHosts[k] = v["Host"] end }
  30       discovery = {
  31         kind: "discovery#restDescription",
  32         discoveryVersion: "v1",
  33         id: "arvados:v1",
  34         name: "arvados",
  35         version: "v1",
  36         revision: "20131114",
  37         source_version: AppVersion.hash,
  38         sourceVersion: AppVersion.hash, # source_version should be deprecated in the future
  39         packageVersion: AppVersion.package_version,
  40         generatedAt: db_current_time.iso8601,
  41         title: "Arvados API",
  42         description: "The API to interact with Arvados.",
  43         documentationLink: "http://doc.arvados.org/api/index.html",
  44         defaultCollectionReplication: Rails.configuration.Collections.DefaultReplication,
  45         protocol: "rest",
  46         baseUrl: root_url + "arvados/v1/",
  47         basePath: "/arvados/v1/",
  48         rootUrl: root_url,
  49         servicePath: "arvados/v1/",
  50         batchPath: "batch",
  51         uuidPrefix: Rails.configuration.ClusterID,
  52         defaultTrashLifetime: Rails.configuration.Collections.DefaultTrashLifetime,
  53         blobSignatureTtl: Rails.configuration.Collections.BlobSigningTTL,
  54         maxRequestSize: Rails.configuration.API.MaxRequestSize,
  55         maxItemsPerResponse: Rails.configuration.API.MaxItemsPerResponse,
  56         dockerImageFormats: Rails.configuration.Containers.SupportedDockerImageFormats,
  57         crunchLogBytesPerEvent: Rails.configuration.Containers.Logging.LogBytesPerEvent,
  58         crunchLogSecondsBetweenEvents: Rails.configuration.Containers.Logging.LogSecondsBetweenEvents,
  59         crunchLogThrottlePeriod: Rails.configuration.Containers.Logging.LogThrottlePeriod,
  60         crunchLogThrottleBytes: Rails.configuration.Containers.Logging.LogThrottleBytes,
  61         crunchLogThrottleLines: Rails.configuration.Containers.Logging.LogThrottleLines,
  62         crunchLimitLogBytesPerJob: Rails.configuration.Containers.Logging.LimitLogBytesPerJob,
  63         crunchLogPartialLineThrottlePeriod: Rails.configuration.Containers.Logging.LogPartialLineThrottlePeriod,
  64         crunchLogUpdatePeriod: Rails.configuration.Containers.Logging.LogUpdatePeriod,
  65         crunchLogUpdateSize: Rails.configuration.Containers.Logging.LogUpdateSize,
  66         remoteHosts: remoteHosts,
  67         remoteHostsViaDNS: Rails.configuration.RemoteClusters["*"].Proxy,
  68         websocketUrl: Rails.configuration.Services.Websocket.ExternalURL.to_s,
  69         workbenchUrl: Rails.configuration.Services.Workbench1.ExternalURL.to_s,
  70         workbench2Url: Rails.configuration.Services.Workbench2.ExternalURL.to_s,
  71         keepWebServiceUrl: Rails.configuration.Services.WebDAV.ExternalURL.to_s,
  72         gitUrl: Rails.configuration.Services.GitHTTP.ExternalURL.to_s,
  73         parameters: {
  74           alt: {
  75             type: "string",
  76             description: "Data format for the response.",
  77             default: "json",
  78             enum: [
  79                    "json"
  80                   ],
  81             enumDescriptions: [
  82                                "Responses with Content-Type of application/json"
  83                               ],
  84             location: "query"
  85           },
  86           fields: {
  87             type: "string",
  88             description: "Selector specifying which fields to include in a partial response.",
  89             location: "query"
  90           },
  91           key: {
  92             type: "string",
  93             description: "API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.",
  94             location: "query"
  95           },
  96           oauth_token: {
  97             type: "string",
  98             description: "OAuth 2.0 token for the current user.",
  99             location: "query"
 100           }
 101         },
 102         auth: {
 103           oauth2: {
 104             scopes: {
 105               "https://api.curoverse.com/auth/arvados" => {
 106                 description: "View and manage objects"
 107               },
 108               "https://api.curoverse.com/auth/arvados.readonly" => {
 109                 description: "View objects"
 110               }
 111             }
 112           }
 113         },
 114         schemas: {},
 115         resources: {}
 116       }
 117
 118       ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |k|
 119         begin
 120           ctl_class = "Arvados::V1::#{k.to_s.pluralize}Controller".constantize
 121         rescue
 122           # No controller -> no discovery.
 123           next
 124         end
 125         object_properties = {}
 126         k.columns.
 127           select { |col| col.name != 'id' && !col.name.start_with?('secret_') }.
 128           collect do |col|
 129           if k.serialized_attributes.has_key? col.name
 130             object_properties[col.name] = {
 131               type: k.serialized_attributes[col.name].object_class.to_s
 132             }
 133           elsif k.attribute_types[col.name].is_a? JsonbType::Hash
 134             object_properties[col.name] = {
 135               type: Hash.to_s
 136             }
 137           elsif k.attribute_types[col.name].is_a? JsonbType::Array
 138             object_properties[col.name] = {
 139               type: Array.to_s
 140             }
 141           else
 142             object_properties[col.name] = {
 143               type: col.type
 144             }
 145           end
 146         end
 147         discovery[:schemas][k.to_s + 'List'] = {
 148           id: k.to_s + 'List',
 149           description: k.to_s + ' list',
 150           type: "object",
 151           properties: {
 152             kind: {
 153               type: "string",
 154               description: "Object type. Always arvados##{k.to_s.camelcase(:lower)}List.",
 155               default: "arvados##{k.to_s.camelcase(:lower)}List"
 156             },
 157             etag: {
 158               type: "string",
 159               description: "List version."
 160             },
 161             items: {
 162               type: "array",
 163               description: "The list of #{k.to_s.pluralize}.",
 164               items: {
 165                 "$ref" => k.to_s
 166               }
 167             },
 168             next_link: {
 169               type: "string",
 170               description: "A link to the next page of #{k.to_s.pluralize}."
 171             },
 172             next_page_token: {
 173               type: "string",
 174               description: "The page token for the next page of #{k.to_s.pluralize}."
 175             },
 176             selfLink: {
 177               type: "string",
 178               description: "A link back to this list."
 179             }
 180           }
 181         }
 182         discovery[:schemas][k.to_s] = {
 183           id: k.to_s,
 184           description: k.to_s,
 185           type: "object",
 186           uuidPrefix: (k.respond_to?(:uuid_prefix) ? k.uuid_prefix : nil),
 187           properties: {
 188             uuid: {
 189               type: "string",
 190               description: "Object ID."
 191             },
 192             etag: {
 193               type: "string",
 194               description: "Object version."
 195             }
 196           }.merge(object_properties)
 197         }
 198         discovery[:resources][k.to_s.underscore.pluralize] = {
 199           methods: {
 200             get: {
 201               id: "arvados.#{k.to_s.underscore.pluralize}.get",
 202               path: "#{k.to_s.underscore.pluralize}/{uuid}",
 203               httpMethod: "GET",
 204               description: "Gets a #{k.to_s}'s metadata by UUID.",
 205               parameters: {
 206                 uuid: {
 207                   type: "string",
 208                   description: "The UUID of the #{k.to_s} in question.",
 209                   required: true,
 210                   location: "path"
 211                 }
 212               },
 213               parameterOrder: [
 214                                "uuid"
 215                               ],
 216               response: {
 217                 "$ref" => k.to_s
 218               },
 219               scopes: [
 220                        "https://api.curoverse.com/auth/arvados",
 221                        "https://api.curoverse.com/auth/arvados.readonly"
 222                       ]
 223             },
 224             index: {
 225               id: "arvados.#{k.to_s.underscore.pluralize}.index",
 226               path: k.to_s.underscore.pluralize,
 227               httpMethod: "GET",
 228               description:
 229                  %|Index #{k.to_s.pluralize}.
 230
 231                    The <code>index</code> method returns a
 232                    <a href="/api/resources.html">resource list</a> of
 233                    matching #{k.to_s.pluralize}. For example:
 234
 235                    <pre>
 236                    {
 237                     "kind":"arvados##{k.to_s.camelcase(:lower)}List",
 238                     "etag":"",
 239                     "self_link":"",
 240                     "next_page_token":"",
 241                     "next_link":"",
 242                     "items":[
 243                        ...
 244                     ],
 245                     "items_available":745,
 246                     "_profile":{
 247                      "request_time":0.157236317
 248                     }
 249                     </pre>|,
 250               parameters: {
 251               },
 252               response: {
 253                 "$ref" => "#{k.to_s}List"
 254               },
 255               scopes: [
 256                        "https://api.curoverse.com/auth/arvados",
 257                        "https://api.curoverse.com/auth/arvados.readonly"
 258                       ]
 259             },
 260             create: {
 261               id: "arvados.#{k.to_s.underscore.pluralize}.create",
 262               path: "#{k.to_s.underscore.pluralize}",
 263               httpMethod: "POST",
 264               description: "Create a new #{k.to_s}.",
 265               parameters: {},
 266               request: {
 267                 required: true,
 268                 properties: {
 269                   k.to_s.underscore => {
 270                     "$ref" => k.to_s
 271                   }
 272                 }
 273               },
 274               response: {
 275                 "$ref" => k.to_s
 276               },
 277               scopes: [
 278                        "https://api.curoverse.com/auth/arvados"
 279                       ]
 280             },
 281             update: {
 282               id: "arvados.#{k.to_s.underscore.pluralize}.update",
 283               path: "#{k.to_s.underscore.pluralize}/{uuid}",
 284               httpMethod: "PUT",
 285               description: "Update attributes of an existing #{k.to_s}.",
 286               parameters: {
 287                 uuid: {
 288                   type: "string",
 289                   description: "The UUID of the #{k.to_s} in question.",
 290                   required: true,
 291                   location: "path"
 292                 }
 293               },
 294               request: {
 295                 required: true,
 296                 properties: {
 297                   k.to_s.underscore => {
 298                     "$ref" => k.to_s
 299                   }
 300                 }
 301               },
 302               response: {
 303                 "$ref" => k.to_s
 304               },
 305               scopes: [
 306                        "https://api.curoverse.com/auth/arvados"
 307                       ]
 308             },
 309             delete: {
 310               id: "arvados.#{k.to_s.underscore.pluralize}.delete",
 311               path: "#{k.to_s.underscore.pluralize}/{uuid}",
 312               httpMethod: "DELETE",
 313               description: "Delete an existing #{k.to_s}.",
 314               parameters: {
 315                 uuid: {
 316                   type: "string",
 317                   description: "The UUID of the #{k.to_s} in question.",
 318                   required: true,
 319                   location: "path"
 320                 }
 321               },
 322               response: {
 323                 "$ref" => k.to_s
 324               },
 325               scopes: [
 326                        "https://api.curoverse.com/auth/arvados"
 327                       ]
 328             }
 329           }
 330         }
 331         # Check for Rails routes that don't match the usual actions
 332         # listed above
 333         d_methods = discovery[:resources][k.to_s.underscore.pluralize][:methods]
 334         Rails.application.routes.routes.each do |route|
 335           action = route.defaults[:action]
 336           httpMethod = ['GET', 'POST', 'PUT', 'DELETE'].map { |method|
 337             method if route.verb.match(method)
 338           }.compact.first
 339           if httpMethod and
 340               route.defaults[:controller] == 'arvados/v1/' + k.to_s.underscore.pluralize and
 341               ctl_class.action_methods.include? action
 342             if !d_methods[action.to_sym]
 343               method = {
 344                 id: "arvados.#{k.to_s.underscore.pluralize}.#{action}",
 345                 path: route.path.spec.to_s.sub('/arvados/v1/','').sub('(.:format)','').sub(/:(uu)?id/,'{uuid}'),
 346                 httpMethod: httpMethod,
 347                 description: "#{action} #{k.to_s.underscore.pluralize}",
 348                 parameters: {},
 349                 response: {
 350                   "$ref" => (action == 'index' ? "#{k.to_s}List" : k.to_s)
 351                 },
 352                 scopes: [
 353                          "https://api.curoverse.com/auth/arvados"
 354                         ]
 355               }
 356               route.segment_keys.each do |key|
 357                 if key != :format
 358                   key = :uuid if key == :id
 359                   method[:parameters][key] = {
 360                     type: "string",
 361                     description: "",
 362                     required: true,
 363                     location: "path"
 364                   }
 365                 end
 366               end
 367             else
 368               # We already built a generic method description, but we
 369               # might find some more required parameters through
 370               # introspection.
 371               method = d_methods[action.to_sym]
 372             end
 373             if ctl_class.respond_to? "_#{action}_requires_parameters".to_sym
 374               ctl_class.send("_#{action}_requires_parameters".to_sym).each do |l, v|
 375                 if v.is_a? Hash
 376                   method[:parameters][l] = v
 377                 else
 378                   method[:parameters][l] = {}
 379                 end
 380                 if !method[:parameters][l][:default].nil?
 381                   # The JAVA SDK is sensitive to all values being strings
 382                   method[:parameters][l][:default] = method[:parameters][l][:default].to_s
 383                 end
 384                 method[:parameters][l][:type] ||= 'string'
 385                 method[:parameters][l][:description] ||= ''
 386                 method[:parameters][l][:location] = (route.segment_keys.include?(l) ? 'path' : 'query')
 387                 if method[:parameters][l][:required].nil?
 388                   method[:parameters][l][:required] = v != false
 389                 end
 390               end
 391             end
 392             d_methods[action.to_sym] = method
 393
 394             if action == 'index'
 395               list_method = method.dup
 396               list_method[:id].sub!('index', 'list')
 397               list_method[:description].sub!('Index', 'List')
 398               list_method[:description].sub!('index', 'list')
 399               d_methods[:list] = list_method
 400             end
 401           end
 402         end
 403       end
 404       Rails.configuration.API.DisabledAPIs.each do |method|
 405         ctrl, action = method.split('.', 2)
 406         discovery[:resources][ctrl][:methods].delete(action.to_sym)
 407       end
 408       discovery
 409     end
 410   end
 411 end