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require 'rack/utils' require 'rack/mock' describe Rack::Multipart do def multipart_fixture(name, boundary = "AaB03x") file = multipart_file(name) data = File.open(file, 'rb') { \|io\| io.read } type = "multipart/form-data; boundary=#{boundary}" length = data.respond_to?(:bytesize) ? data.bytesize : data.size { "CONTENT_TYPE" => type, "CONTENT_LENGTH" => length.to_s, :input => StringIO.new(data) } end def multipart_file(name) File.join(File.dirname(__FILE__), "multipart", name.to_s) end should "return nil if content type is not multipart" do env = Rack::MockRequest.env_for("/", "CONTENT_TYPE" => 'application/x-www-form-urlencoded') Rack::Multipart.parse_multipart(env).should.equal nil end should "parse multipart content when content type present but filename is not" do env = Rack::MockRequest.env_for("/", multipart_fixture(:content_type_and_no_filename)) params = Rack::Multipart.parse_multipart(env) params["text"].should.equal "contents" end if "<3".respond_to?(:force_encoding) should "set US_ASCII encoding based on charset" do env = Rack::MockRequest.env_for("/", multipart_fixture(:content_type_and_no_filename)) params = Rack::Multipart.parse_multipart(env) params["text"].encoding.should.equal Encoding::US_ASCII # I'm not 100% sure if making the param name encoding match the # Content-Type charset is the right thing to do. We should revisit this. params.keys.each do \|key\| key.encoding.should.equal Encoding::US_ASCII end end should "set BINARY encoding on things without content type" do env = Rack::MockRequest.env_for("/", multipart_fixture(:none)) params = Rack::Multipart.parse_multipart(env) params["submit-name"].encoding.should.equal Encoding::UTF_8 end should "set UTF8 encoding on names of things without content type" do env = Rack::MockRequest.env_for("/", multipart_fixture(:none)) params = Rack::Multipart.parse_multipart(env) params.keys.each do \|key\| key.encoding.should.equal Encoding::UTF_8 end end should "default text to UTF8" do env = Rack::MockRequest.env_for("/", multipart_fixture(:text)) params = Rack::Multipart.parse_multipart(env) params['submit-name'].encoding.should.equal Encoding::UTF_8 params['submit-name-with-content'].encoding.should.equal Encoding::UTF_8 params.keys.each do \|key\| key.encoding.should.equal Encoding::UTF_8 end end end should "raise RangeError if the key space is exhausted" do env = Rack::MockRequest.env_for("/", multipart_fixture(:content_type_and_no_filename)) old, Rack::Utils.key_space_limit = Rack::Utils.key_space_limit, 1 begin lambda { Rack::Multipart.parse_multipart(env) }.should.raise(RangeError) ensure Rack::Utils.key_space_limit = old end end should "parse multipart form webkit style" do env = Rack::MockRequest.env_for '/', multipart_fixture(:webkit) env['CONTENT_TYPE'] = "multipart/form-data; boundary=----WebKitFormBoundaryWLHCs9qmcJJoyjKR" params = Rack::Multipart.parse_multipart(env) params['profile']['bio'].should.include 'hello' end should "reject insanely long boundaries" do # using a pipe since a tempfile can use up too much space rd, wr = IO.pipe # we only call rewind once at start, so make sure it succeeds # and doesn't hit ESPIPE def rd.rewind; end wr.sync = true # mock out length to make this pipe look like a Tempfile def rd.length 1024 * 1024 * 8 end # write to a pipe in a background thread, this will write a lot # unless Rack (properly) shuts down the read end thr = Thread.new do begin wr.write("--AaB03x") # make the initial boundary a few gigs long longer = "0123456789" * 1024 * 1024 (1024 * 1024).times { wr.write(longer) } wr.write("\r\n") wr.write('Content-Disposition: form-data; name="a"; filename="a.txt"') wr.write("\r\n") wr.write("Content-Type: text/plain\r\n") wr.write("\r\na") wr.write("--AaB03x--\r\n") wr.close rescue => err # this is EPIPE if Rack shuts us down err end end fixture = { "CONTENT_TYPE" => "multipart/form-data; boundary=AaB03x", "CONTENT_LENGTH" => rd.length.to_s, :input => rd, } env = Rack::MockRequest.env_for '/', fixture lambda { Rack::Multipart.parse_multipart(env) }.should.raise(EOFError) rd.close err = thr.value err.should.be.instance_of Errno::EPIPE wr.close end should "parse multipart upload with text file" do env = Rack::MockRequest.env_for("/", multipart_fixture(:text)) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["submit-name-with-content"].should.equal "Berry" params["files"][:type].should.equal "text/plain" params["files"][:filename].should.equal "file1.txt" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; filename=\"file1.txt\"\r\n" + "Content-Type: text/plain\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "preserve extension in the created tempfile" do env = Rack::MockRequest.env_for("/", multipart_fixture(:text)) params = Rack::Multipart.parse_multipart(env) File.extname(params["files"][:tempfile].path).should.equal ".txt" end should "parse multipart upload with text file with no name field" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_and_no_name)) params = Rack::Multipart.parse_multipart(env) params["file1.txt"][:type].should.equal "text/plain" params["file1.txt"][:filename].should.equal "file1.txt" params["file1.txt"][:head].should.equal "Content-Disposition: form-data; " + "filename=\"file1.txt\"\r\n" + "Content-Type: text/plain\r\n" params["file1.txt"][:name].should.equal "file1.txt" params["file1.txt"][:tempfile].read.should.equal "contents" end should "parse multipart upload file using custom tempfile class" do env = Rack::MockRequest.env_for("/", multipart_fixture(:text)) my_tempfile = "" env['rack.multipart.tempfile_factory'] = lambda { \|filename, content_type\| my_tempfile } params = Rack::Multipart.parse_multipart(env) params["files"][:tempfile].object_id.should.equal my_tempfile.object_id my_tempfile.should.equal "contents" end should "parse multipart upload with nested parameters" do env = Rack::MockRequest.env_for("/", multipart_fixture(:nested)) params = Rack::Multipart.parse_multipart(env) params["foo"]["submit-name"].should.equal "Larry" params["foo"]["files"][:type].should.equal "text/plain" params["foo"]["files"][:filename].should.equal "file1.txt" params["foo"]["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"foo[files]\"; filename=\"file1.txt\"\r\n" + "Content-Type: text/plain\r\n" params["foo"]["files"][:name].should.equal "foo[files]" params["foo"]["files"][:tempfile].read.should.equal "contents" end should "parse multipart upload with binary file" do env = Rack::MockRequest.env_for("/", multipart_fixture(:binary)) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["files"][:type].should.equal "image/png" params["files"][:filename].should.equal "rack-logo.png" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; filename=\"rack-logo.png\"\r\n" + "Content-Type: image/png\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.length.should.equal 26473 end should "parse multipart upload with empty file" do env = Rack::MockRequest.env_for("/", multipart_fixture(:empty)) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["files"][:type].should.equal "text/plain" params["files"][:filename].should.equal "file1.txt" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; filename=\"file1.txt\"\r\n" + "Content-Type: text/plain\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "" end should "parse multipart upload with filename with semicolons" do env = Rack::MockRequest.env_for("/", multipart_fixture(:semicolon)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "text/plain" params["files"][:filename].should.equal "fi;le1.txt" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; filename=\"fi;le1.txt\"\r\n" + "Content-Type: text/plain\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse multipart upload with filename with invalid characters" do env = Rack::MockRequest.env_for("/", multipart_fixture(:invalid_character)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "text/plain" params["files"][:filename].should.match(/invalid/) head = "Content-Disposition: form-data; " + "name=\"files\"; filename=\"invalid\xC3.txt\"\r\n" + "Content-Type: text/plain\r\n" head = head.force_encoding("ASCII-8BIT") if head.respond_to?(:force_encoding) params["files"][:head].should.equal head params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "not include file params if no file was selected" do env = Rack::MockRequest.env_for("/", multipart_fixture(:none)) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["files"].should.equal nil params.keys.should.not.include "files" end should "parse multipart/mixed" do env = Rack::MockRequest.env_for("/", multipart_fixture(:mixed_files)) params = Rack::Utils::Multipart.parse_multipart(env) params["foo"].should.equal "bar" params["files"].should.be.instance_of String params["files"].size.should.equal 252 end should "parse multipart/mixed" do env = Rack::MockRequest.env_for("/", multipart_fixture(:mixed_files)) params = Rack::Utils::Multipart.parse_multipart(env) params["foo"].should.equal "bar" params["files"].should.be.instance_of String params["files"].size.should.equal 252 end should "parse IE multipart upload and clean up filename" do env = Rack::MockRequest.env_for("/", multipart_fixture(:ie)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "text/plain" params["files"][:filename].should.equal "file1.txt" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; " + 'filename="C:\Documents and Settings\Administrator\Desktop\file1.txt"' + "\r\nContent-Type: text/plain\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse filename and modification param" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_and_modification_param)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "image/jpeg" params["files"][:filename].should.equal "genome.jpeg" params["files"][:head].should.equal "Content-Type: image/jpeg\r\n" + "Content-Disposition: attachment; " + "name=\"files\"; " + "filename=genome.jpeg; " + "modification-date=\"Wed, 12 Feb 1997 16:29:51 -0500\";\r\n" + "Content-Description: a complete map of the human genome\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse filename with escaped quotes" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_escaped_quotes)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "application/octet-stream" params["files"][:filename].should.equal "escape \"quotes" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; " + "filename=\"escape \\\"quotes\"\r\n" + "Content-Type: application/octet-stream\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse filename with percent escaped quotes" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_percent_escaped_quotes)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "application/octet-stream" params["files"][:filename].should.equal "escape \"quotes" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; " + "filename=\"escape %22quotes\"\r\n" + "Content-Type: application/octet-stream\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse filename with unescaped quotes" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_unescaped_quotes)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "application/octet-stream" params["files"][:filename].should.equal "escape \"quotes" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; " + "filename=\"escape \"quotes\"\r\n" + "Content-Type: application/octet-stream\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse filename with escaped quotes and modification param" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_escaped_quotes_and_modification_param)) params = Rack::Multipart.parse_multipart(env) params["files"][:type].should.equal "image/jpeg" params["files"][:filename].should.equal "\"human\" genome.jpeg" params["files"][:head].should.equal "Content-Type: image/jpeg\r\n" + "Content-Disposition: attachment; " + "name=\"files\"; " + "filename=\"\"human\" genome.jpeg\"; " + "modification-date=\"Wed, 12 Feb 1997 16:29:51 -0500\";\r\n" + "Content-Description: a complete map of the human genome\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end should "parse filename with unescaped percentage characters" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_unescaped_percentages, "----WebKitFormBoundary2NHc7OhsgU68l3Al")) params = Rack::Multipart.parse_multipart(env) files = params["document"]["attachment"] files[:type].should.equal "image/jpeg" files[:filename].should.equal "100% of a photo.jpeg" files[:head].should.equal <<-MULTIPART Content-Disposition: form-data; name="document[attachment]"; filename="100% of a photo.jpeg"\r Content-Type: image/jpeg\r MULTIPART files[:name].should.equal "document[attachment]" files[:tempfile].read.should.equal "contents" end should "parse filename with unescaped percentage characters that look like partial hex escapes" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_unescaped_percentages2, "----WebKitFormBoundary2NHc7OhsgU68l3Al")) params = Rack::Multipart.parse_multipart(env) files = params["document"]["attachment"] files[:type].should.equal "image/jpeg" files[:filename].should.equal "100%a" files[:head].should.equal <<-MULTIPART Content-Disposition: form-data; name="document[attachment]"; filename="100%a"\r Content-Type: image/jpeg\r MULTIPART files[:name].should.equal "document[attachment]" files[:tempfile].read.should.equal "contents" end should "parse filename with unescaped percentage characters that look like partial hex escapes" do env = Rack::MockRequest.env_for("/", multipart_fixture(:filename_with_unescaped_percentages3, "----WebKitFormBoundary2NHc7OhsgU68l3Al")) params = Rack::Multipart.parse_multipart(env) files = params["document"]["attachment"] files[:type].should.equal "image/jpeg" files[:filename].should.equal "100%" files[:head].should.equal <<-MULTIPART Content-Disposition: form-data; name="document[attachment]"; filename="100%"\r Content-Type: image/jpeg\r MULTIPART files[:name].should.equal "document[attachment]" files[:tempfile].read.should.equal "contents" end it "rewinds input after parsing upload" do options = multipart_fixture(:text) input = options[:input] env = Rack::MockRequest.env_for("/", options) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["files"][:filename].should.equal "file1.txt" input.read.length.should.equal 307 end it "builds multipart body" do files = Rack::Multipart::UploadedFile.new(multipart_file("file1.txt")) data = Rack::Multipart.build_multipart("submit-name" => "Larry", "files" => files) options = { "CONTENT_TYPE" => "multipart/form-data; boundary=AaB03x", "CONTENT_LENGTH" => data.length.to_s, :input => StringIO.new(data) } env = Rack::MockRequest.env_for("/", options) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["files"][:filename].should.equal "file1.txt" params["files"][:tempfile].read.should.equal "contents" end it "builds nested multipart body" do files = Rack::Multipart::UploadedFile.new(multipart_file("file1.txt")) data = Rack::Multipart.build_multipart("people" => [{"submit-name" => "Larry", "files" => files}]) options = { "CONTENT_TYPE" => "multipart/form-data; boundary=AaB03x", "CONTENT_LENGTH" => data.length.to_s, :input => StringIO.new(data) } env = Rack::MockRequest.env_for("/", options) params = Rack::Multipart.parse_multipart(env) params["people"][0]["submit-name"].should.equal "Larry" params["people"][0]["files"][:filename].should.equal "file1.txt" params["people"][0]["files"][:tempfile].read.should.equal "contents" end it "can parse fields that end at the end of the buffer" do input = File.read(multipart_file("bad_robots")) req = Rack::Request.new Rack::MockRequest.env_for("/", "CONTENT_TYPE" => "multipart/form-data, boundary=1yy3laWhgX31qpiHinh67wJXqKalukEUTvqTzmon", "CONTENT_LENGTH" => input.size, :input => input) req.POST['file.path'].should.equal "/var/tmp/uploads/4/0001728414" req.POST['addresses'].should.not.equal nil end it "builds complete params with the chunk size of 16384 slicing exactly on boundary" do begin previous_limit = Rack::Utils.multipart_part_limit Rack::Utils.multipart_part_limit = 256 data = File.open(multipart_file("fail_16384_nofile"), 'rb') { \|f\| f.read }.gsub(/\n/, "\r\n") options = { "CONTENT_TYPE" => "multipart/form-data; boundary=----WebKitFormBoundaryWsY0GnpbI5U7ztzo", "CONTENT_LENGTH" => data.length.to_s, :input => StringIO.new(data) } env = Rack::MockRequest.env_for("/", options) params = Rack::Multipart.parse_multipart(env) params.should.not.equal nil params.keys.should.include "AAAAAAAAAAAAAAAAAAA" params["AAAAAAAAAAAAAAAAAAA"].keys.should.include "PLAPLAPLA_MEMMEMMEMM_ATTRATTRER" params["AAAAAAAAAAAAAAAAAAA"]["PLAPLAPLA_MEMMEMMEMM_ATTRATTRER"].keys.should.include "new" params["AAAAAAAAAAAAAAAAAAA"]["PLAPLAPLA_MEMMEMMEMM_ATTRATTRER"]["new"].keys.should.include "-2" params["AAAAAAAAAAAAAAAAAAA"]["PLAPLAPLA_MEMMEMMEMM_ATTRATTRER"]["new"]["-2"].keys.should.include "ba_unit_id" params["AAAAAAAAAAAAAAAAAAA"]["PLAPLAPLA_MEMMEMMEMM_ATTRATTRER"]["new"]["-2"]["ba_unit_id"].should.equal "1017" ensure Rack::Utils.multipart_part_limit = previous_limit end end should "not reach a multi-part limit" do begin previous_limit = Rack::Utils.multipart_part_limit Rack::Utils.multipart_part_limit = 4 env = Rack::MockRequest.env_for '/', multipart_fixture(:three_files_three_fields) params = Rack::Multipart.parse_multipart(env) params['reply'].should.equal 'yes' params['to'].should.equal 'people' params['from'].should.equal 'others' ensure Rack::Utils.multipart_part_limit = previous_limit end end should "reach a multipart limit" do begin previous_limit = Rack::Utils.multipart_part_limit Rack::Utils.multipart_part_limit = 3 env = Rack::MockRequest.env_for '/', multipart_fixture(:three_files_three_fields) lambda { Rack::Multipart.parse_multipart(env) }.should.raise(Rack::Multipart::MultipartPartLimitError) ensure Rack::Utils.multipart_part_limit = previous_limit end end should "return nil if no UploadedFiles were used" do data = Rack::Multipart.build_multipart("people" => [{"submit-name" => "Larry", "files" => "contents"}]) data.should.equal nil end should "raise ArgumentError if params is not a Hash" do lambda { Rack::Multipart.build_multipart("foo=bar") }. should.raise(ArgumentError). message.should.equal "value must be a Hash" end it "can parse fields with a content type" do data = <<-EOF --1yy3laWhgX31qpiHinh67wJXqKalukEUTvqTzmon\r Content-Disposition: form-data; name="description"\r Content-Type: text/plain"\r \r Very very blue\r --1yy3laWhgX31qpiHinh67wJXqKalukEUTvqTzmon--\r EOF options = { "CONTENT_TYPE" => "multipart/form-data; boundary=1yy3laWhgX31qpiHinh67wJXqKalukEUTvqTzmon", "CONTENT_LENGTH" => data.length.to_s, :input => StringIO.new(data) } env = Rack::MockRequest.env_for("/", options) params = Rack::Utils::Multipart.parse_multipart(env) params.should.equal({"description"=>"Very very blue"}) end should "parse multipart upload with no content-length header" do env = Rack::MockRequest.env_for '/', multipart_fixture(:webkit) env['CONTENT_TYPE'] = "multipart/form-data; boundary=----WebKitFormBoundaryWLHCs9qmcJJoyjKR" env.delete 'CONTENT_LENGTH' params = Rack::Multipart.parse_multipart(env) params['profile']['bio'].should.include 'hello' end should "parse very long unquoted multipart file names" do data = <<-EOF --AaB03x\r Content-Type: text/plain\r Content-Disposition: attachment; name=file; filename=#{'long' * 100}\r \r contents\r --AaB03x--\r EOF options = { "CONTENT_TYPE" => "multipart/form-data; boundary=AaB03x", "CONTENT_LENGTH" => data.length.to_s, :input => StringIO.new(data) } env = Rack::MockRequest.env_for("/", options) params = Rack::Utils::Multipart.parse_multipart(env) params["file"][:filename].should.equal('long' * 100) end should "support mixed case metadata" do file = multipart_file(:text) data = File.open(file, 'rb') { \|io\| io.read } type = "Multipart/Form-Data; Boundary=AaB03x" length = data.respond_to?(:bytesize) ? data.bytesize : data.size e = { "CONTENT_TYPE" => type, "CONTENT_LENGTH" => length.to_s, :input => StringIO.new(data) } env = Rack::MockRequest.env_for("/", e) params = Rack::Multipart.parse_multipart(env) params["submit-name"].should.equal "Larry" params["submit-name-with-content"].should.equal "Berry" params["files"][:type].should.equal "text/plain" params["files"][:filename].should.equal "file1.txt" params["files"][:head].should.equal "Content-Disposition: form-data; " + "name=\"files\"; filename=\"file1.txt\"\r\n" + "Content-Type: text/plain\r\n" params["files"][:name].should.equal "files" params["files"][:tempfile].read.should.equal "contents" end end