Public Instance Aliases
| to_s | -> | inspect |
Attributes
| options | [R] | |
| shrine_class | [R] |
Public Class methods
new(shrine_class:, options: {})
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# File lib/shrine/plugins/derivation_endpoint.rb 354 def initialize(shrine_class:, options: {}) 355 @shrine_class = shrine_class 356 @options = options 357 end
Public Instance methods
call(env)
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# File lib/shrine/plugins/derivation_endpoint.rb 359 def call(env) 360 request = Rack::Request.new(env) 361 362 status, headers, body = catch(:halt) do 363 error!(405, "Method not allowed") unless request.get? || request.head? 364 365 handle_request(request) 366 end 367 368 headers["Content-Length"] ||= body.map(&:bytesize).inject(0, :+).to_s 369 370 [status, headers, body] 371 end
handle_request(request)
Verifies validity of the URL, then extracts parameters from it (such as derivation name, arguments and source file), and generates a derivation response.
Returns “403 Forbidden” if signature is invalid, or if the URL has expired.
Returns “404 Not Found” if derivation block is not defined, or if source file was not found on the storage.
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# File lib/shrine/plugins/derivation_endpoint.rb 382 def handle_request(request) 383 verify_signature!(request) if secret_key 384 check_expiry!(request) 385 386 name, *args, serialized_file = request.path_info.split("/")[1..-1] 387 388 name = name.to_sym 389 uploaded_file = shrine_class::UploadedFile.urlsafe_load(serialized_file) 390 391 # request params override statically configured options 392 options = self.options.dup 393 options[:type] = request.params["type"] if request.params["type"] 394 options[:disposition] = request.params["disposition"] if request.params["disposition"] 395 options[:filename] = request.params["filename"] if request.params["filename"] 396 options[:version] = request.params["version"] if request.params["version"] 397 options[:expires_in] = expires_in(request) if request.params["expires_at"] 398 399 derivation = uploaded_file.derivation(name, *args, **options) 400 401 begin 402 status, headers, body = derivation.response(request.env) 403 rescue Derivation::SourceNotFound 404 error!(404, "Source file not found") 405 rescue Derivation::NotFound 406 error!(404, "Unknown derivation \"#{name}\"") 407 end 408 409 # tell clients to cache the derivation result if it was successful 410 if status == 200 || status == 206 411 headers["Cache-Control"] = derivation.option(:cache_control) 412 end 413 414 [status, headers, body] 415 end
inspect()
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# File lib/shrine/plugins/derivation_endpoint.rb 417 def inspect 418 "#<#{@shrine_class}::DerivationEndpoint>" 419 end