1 files changed, 84 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/http/upload.rb b/actionpack/lib/action_dispatch/http/upload.rb
new file mode 100644
index 0000000000..0b162dc7f1
--- /dev/null
+++ b/actionpack/lib/action_dispatch/http/upload.rb
@@ -0,0 +1,84 @@
+# frozen_string_literal: true
+
+module ActionDispatch
+  module Http
+    # Models uploaded files.
+    #
+    # The actual file is accessible via the +tempfile+ accessor, though some
+    # of its interface is available directly for convenience.
+    #
+    # Uploaded files are temporary files whose lifespan is one request. When
+    # the object is finalized Ruby unlinks the file, so there is no need to
+    # clean them with a separate maintenance task.
+    class UploadedFile
+      # The basename of the file in the client.
+      attr_accessor :original_filename
+
+      # A string with the MIME type of the file.
+      attr_accessor :content_type
+
+      # A +Tempfile+ object with the actual uploaded file. Note that some of
+      # its interface is available directly.
+      attr_accessor :tempfile
+      alias :to_io :tempfile
+
+      # A string with the headers of the multipart request.
+      attr_accessor :headers
+
+      def initialize(hash) # :nodoc:
+        @tempfile = hash[:tempfile]
+        raise(ArgumentError, ":tempfile is required") unless @tempfile
+
+        if hash[:filename]
+          @original_filename = hash[:filename].dup
+
+          begin
+            @original_filename.encode!(Encoding::UTF_8)
+          rescue EncodingError
+            @original_filename.force_encoding(Encoding::UTF_8)
+          end
+        else
+          @original_filename = nil
+        end
+
+        @content_type      = hash[:type]
+        @headers           = hash[:head]
+      end
+
+      # Shortcut for +tempfile.read+.
+      def read(length = nil, buffer = nil)
+        @tempfile.read(length, buffer)
+      end
+
+      # Shortcut for +tempfile.open+.
+      def open
+        @tempfile.open
+      end
+
+      # Shortcut for +tempfile.close+.
+      def close(unlink_now = false)
+        @tempfile.close(unlink_now)
+      end
+
+      # Shortcut for +tempfile.path+.
+      def path
+        @tempfile.path
+      end
+
+      # Shortcut for +tempfile.rewind+.
+      def rewind
+        @tempfile.rewind
+      end
+
+      # Shortcut for +tempfile.size+.
+      def size
+        @tempfile.size
+      end
+
+      # Shortcut for +tempfile.eof?+.
+      def eof?
+        @tempfile.eof?
+      end
+    end
+  end
+end