Introduce WSF_COMPRESSION (experimental)
This commit is contained in:
@@ -32,13 +32,13 @@ feature {NONE} -- Initialization
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do
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create fhdl.make_hidden ("www")
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fhdl.set_directory_index (<<"index.html">>)
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fhdl.set_default_compression_format
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fhdl.enable_compression_for_media_type ({HTTP_MIME_TYPES}.image_jpg)
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fhdl.compression.set_default_compression_format
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fhdl.compression.enable_compression_for_media_type ({HTTP_MIME_TYPES}.image_jpg)
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fhdl.set_not_found_handler (agent (ia_uri: READABLE_STRING_8; ia_req: WSF_REQUEST; ia_res: WSF_RESPONSE)
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do
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execute_default (ia_req, ia_res)
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end)
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router.handle_with_request_methods ("/", fhdl, router.methods_GET)
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router.handle ("/", fhdl, router.methods_GET)
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end
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205
library/server/wsf/compression/wsf_compression.e
Normal file
205
library/server/wsf/compression/wsf_compression.e
Normal file
@@ -0,0 +1,205 @@
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note
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description: "Summary description for {WSF_COMPRESSION}."
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date: "$Date$"
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revision: "$Revision$"
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class
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WSF_COMPRESSION
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create
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make
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feature {NONE} -- Initialization
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make
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-- Initialize compression support, by default no compression
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-- Gzip with the following media types
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-- applications/javascript
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-- application/json
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-- application/xml
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-- text/css
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-- text/html
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--
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do
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-- compression algorithms
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create {ARRAYED_LIST [STRING]} compression_supported_formats.make (0)
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compression_supported_formats.compare_objects
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-- media types supported by compression.
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create {ARRAYED_LIST [STRING]} compression_enabled_media_types.make (0)
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compression_enabled_media_types.compare_objects
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set_default_compression_enabled_media_types
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end
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feature -- Query
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encoding_variants (req: WSF_REQUEST; ct: STRING): detachable HTTP_ACCEPT_ENCODING_VARIANTS
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-- If the client support compression and the server support one of the algorithms
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-- compress it and update the response header.
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local
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conneg : SERVER_CONTENT_NEGOTIATION
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do
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if
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attached req.http_accept_encoding as l_http_encoding and then
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not compression_supported_formats.is_empty and then
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compression_enabled_media_types.has (ct)
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then
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create conneg.make ("", "", "", "")
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Result := conneg.encoding_preference (compression_supported_formats, l_http_encoding)
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if not Result.is_acceptable then
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Result := Void
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end
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end
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end
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feature -- Compression: constants
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gzip_compression_format: STRING = "gzip"
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-- RFC 1952 (gzip compressed format)
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deflate_compression_format: STRING = "deflate"
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-- RFC 1951 (deflate compressed format)
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compress_compression_format: STRING = "compress"
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-- RFC 1950 (zlib compressed format)
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feature -- Compression
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compression_supported_formats : LIST [STRING]
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-- Server side compression supported formats.
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-- Supported compression agorithms: `gzip_compression_format', `deflate_compression_format', `compress_compression_format'.
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-- identity, means no compression at all.
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compression_enabled_media_types: LIST [STRING]
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-- List of media types supported by compression.
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set_default_compression_format
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-- gzip default format
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do
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enable_gzip_compression
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end
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disable_all_compression_formats
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-- Remove all items.
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do
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compression_supported_formats.wipe_out
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end
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enable_gzip_compression
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-- add 'gzip' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.force (gzip_compression_format)
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ensure
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has_gzip: compression_supported_formats.has (gzip_compression_format)
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end
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disable_gzip_compression
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-- remove 'gzip' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.prune (gzip_compression_format)
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ensure
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not_gzip: not compression_supported_formats.has (gzip_compression_format)
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end
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enable_deflate_compression
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-- add 'deflate' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.force (deflate_compression_format)
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ensure
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has_deflate: compression_supported_formats.has (deflate_compression_format)
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end
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disable_deflate_compression
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-- remove 'deflate' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.prune (deflate_compression_format)
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ensure
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not_deflate: not compression_supported_formats.has (deflate_compression_format)
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end
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enable_compress_compression
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-- add 'compress' format to the list of 'compression_supported' formats
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do
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compression_supported_formats.force (compress_compression_format)
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ensure
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has_compress: compression_supported_formats.has (compress_compression_format)
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end
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disable_compress_compression
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-- remove 'deflate' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.prune (compress_compression_format)
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ensure
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no_compress: not compression_supported_formats.has (compress_compression_format)
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end
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feature -- Compression: media types
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set_default_compression_enabled_media_types
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-- Default media types
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-- applications/javascript
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-- application/json
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-- application/xml
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-- text/css
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-- text/html
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-- text/plain
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do
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.application_javascript)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.application_json)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.application_xml)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.text_css)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.text_html)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.text_plain)
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end
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remove_all_compression_enabled_media_types
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-- Remove all items.
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do
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compression_enabled_media_types.wipe_out
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end
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enable_compression_for_media_type (a_media_type: STRING)
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do
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compression_enabled_media_types.force (a_media_type)
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ensure
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has_media_type: compression_enabled_media_types.has (a_media_type)
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end
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feature -- Compress Data
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compressed_string (a_string: STRING; a_encoding: STRING): STRING
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-- Compress `a_string' using `deflate_compression_format'
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local
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dc: ZLIB_STRING_COMPRESS
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do
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create Result.make_empty
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create dc.string_stream_with_size (Result, 32_768) -- chunk size 32k
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dc.put_string_with_options (a_string, {ZLIB_CONSTANTS}.Z_default_compression, zlb_strategy (a_encoding), 8, {ZLIB_CONSTANTS}.z_default_strategy.to_integer_32)
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-- We use the default compression level
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-- We use the default value for windows bits, the range is 8..15. Higher values use more memory, but produce smaller output.
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-- Memory: Higher values use more memory, but are faster and produce smaller output. The default is 8, we use 9.
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end
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zlb_strategy (a_encoding: STRING): INTEGER
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do
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if a_encoding.is_case_insensitive_equal_general (gzip_compression_format) then
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Result := {ZLIB_CONSTANTS}.z_default_window_bits + 16
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elseif a_encoding.is_case_insensitive_equal_general (deflate_compression_format) then
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Result := -{ZLIB_CONSTANTS}.z_default_window_bits
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else
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check compress: a_encoding.is_case_insensitive_equal_general (compress_compression_format) end
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Result := {ZLIB_CONSTANTS}.z_default_window_bits
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end
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end
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note
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copyright: "2011-2016, Jocelyn Fiat, Javier Velilla, Olivier Ligot, Colin Adams, Eiffel Software and others"
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license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
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source: "[
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Eiffel Software
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5949 Hollister Ave., Goleta, CA 93117 USA
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Telephone 805-685-1006, Fax 805-685-6869
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Website http://www.eiffel.com
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Customer support http://support.eiffel.com
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]"
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end
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@@ -9,6 +9,10 @@ class
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inherit
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WSF_FILE_RESPONSE
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redefine
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send_to,
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initialize
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end
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create
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make_with_path,
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@@ -18,7 +22,58 @@ create
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make_with_content_type,
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make_html
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feature {NONE} -- Initialization
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initialize
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do
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Precursor
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create compression.make
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end
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feature -- Access
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compression: WSF_COMPRESSION
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compression_variants: detachable HTTP_ACCEPT_ENCODING_VARIANTS
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feature -- Compression setting
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apply_compression (req: WSF_REQUEST)
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do
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compression_variants := compression.encoding_variants (req, content_type)
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end
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feature {WSF_RESPONSE} -- Output
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send_to (res: WSF_RESPONSE)
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local
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s: detachable READABLE_STRING_8
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do
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if attached compression_variants as l_compression_variants and then
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attached l_compression_variants.encoding as l_encoding and then
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attached l_compression_variants.vary_header_value as l_vary_header
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then
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Precursor (res)
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else
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Precursor (res)
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-- res.set_status_code (status_code)
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-- if status_code = {HTTP_STATUS_CODE}.not_found then
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-- else
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-- res.put_header_text (header.string)
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-- s := head
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-- if s /= Void then
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-- res.put_string (s)
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-- end
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-- if not answer_head_request_method then
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-- send_file_content_to (file_path, res)
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-- end
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-- s := bottom
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-- if s /= Void then
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-- res.put_string (s)
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-- end
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-- end
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end
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end
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note
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copyright: "2011-2016, Jocelyn Fiat, Javier Velilla, Olivier Ligot, Colin Adams, Eiffel Software and others"
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license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
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@@ -25,32 +25,12 @@ feature {NONE} -- Initialization
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initialize
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do
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Precursor
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initialize_compression
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create compression.make
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end
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initialize_compression
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-- Initialize compression support, by default no compression
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-- Gzip with the following media types
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-- applications/javascript
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-- application/json
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-- application/xml
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-- text/css
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-- text/html
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--
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do
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create conneg.make ("", "", "", "")
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feature -- Access: compression
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-- compression algorithms
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create {ARRAYED_LIST [STRING]} compression_supported_formats.make (0)
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compression_supported_formats.compare_objects
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-- media types supported by compression.
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create {ARRAYED_LIST [STRING]} compression_enabled_media_types.make (0)
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compression_enabled_media_types.compare_objects
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set_default_compression_enabled_media_types
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end
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conneg : SERVER_CONTENT_NEGOTIATION
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compression: WSF_COMPRESSION
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feature -- Execution
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@@ -58,23 +38,26 @@ feature -- Execution
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local
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ext: READABLE_STRING_32
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ct: detachable READABLE_STRING_8
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-- fres: WSF_FILE_RESPONSE_WITH_COMPRESSION
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fres: WSF_FILE_RESPONSE_WITH_COMPRESSION
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dt: DATE_TIME
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h: HTTP_HEADER
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l_file: RAW_FILE
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l_content: detachable STRING
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do
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create fres.make_with_path (f.path)
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ext := extension (f.path.name)
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ct := extension_mime_mapping.mime_type (ext)
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if ct = Void then
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ct := {HTTP_MIME_TYPES}.application_force_download
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ct := fres.content_type
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else
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fres.set_content_type (ct)
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end
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-- Check the CLIENT request
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-- If the client support compression and one of the algorithms is `deflate_compression_format' we can do compression.
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-- and we need to add the corresponding 'Content-Encoding' with supported compression formats.
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if
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attached compression_encoding_variants (req, ct) as l_compression_variants and then
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attached compression.encoding_variants (req, ct) as l_compression_variants and then
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attached l_compression_variants.encoding as l_encoding and then
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attached l_compression_variants.vary_header_value as l_vary_header
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then
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@@ -87,7 +70,7 @@ feature -- Execution
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l_file.open_read
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l_file.read_stream (l_file.count)
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l_file.close
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l_content := compressed_string (l_file.last_string, l_encoding)
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l_content := compression.compressed_string (l_file.last_string, l_encoding)
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h.add_header ("Content-Encoding:" + l_encoding)
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h.add_header ("Vary:" + l_vary_header)
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h.put_content_type (ct)
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@@ -113,204 +96,9 @@ feature -- Execution
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end
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end
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feature -- Compression: constants
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gzip_compression_format: STRING = "gzip"
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-- RFC 1952 (gzip compressed format)
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deflate_compression_format: STRING = "deflate"
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-- RFC 1951 (deflate compressed format)
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compress_compression_format: STRING = "compress"
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-- RFC 1950 (zlib compressed format)
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feature -- Compression
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compression_supported_formats : LIST [STRING]
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-- Server side compression supported formats.
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-- Supported compression agorithms: `gzip_compression_format', `deflate_compression_format', `compress_compression_format'.
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-- identity, means no compression at all.
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compression_enabled_media_types: LIST [STRING]
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-- List of media types supported by compression.
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set_default_compression_format
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-- gzip default format
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do
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enable_gzip_compression
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end
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disable_all_compression_formats
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-- Remove all items.
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do
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compression_supported_formats.wipe_out
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end
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enable_gzip_compression
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-- add 'gzip' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.force (gzip_compression_format)
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ensure
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has_gzip: compression_supported_formats.has (gzip_compression_format)
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end
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disable_gzip_compression
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-- remove 'gzip' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.prune (gzip_compression_format)
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ensure
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not_gzip: not compression_supported_formats.has (gzip_compression_format)
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end
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enable_deflate_compression
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-- add 'deflate' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.force (deflate_compression_format)
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ensure
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has_deflate: compression_supported_formats.has (deflate_compression_format)
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end
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disable_deflate_compression
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-- remove 'deflate' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.prune (deflate_compression_format)
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ensure
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not_deflate: not compression_supported_formats.has (deflate_compression_format)
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end
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enable_compress_compression
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-- add 'compress' format to the list of 'compression_supported' formats
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do
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compression_supported_formats.force (compress_compression_format)
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ensure
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has_compress: compression_supported_formats.has (compress_compression_format)
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end
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disable_compress_compression
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-- remove 'deflate' format to the list of 'compression_supported' formats.
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do
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compression_supported_formats.prune (compress_compression_format)
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ensure
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no_compress: not compression_supported_formats.has (compress_compression_format)
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end
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feature -- Compression: media types
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set_default_compression_enabled_media_types
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-- Default media types
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-- applications/javascript
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-- application/json
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-- application/xml
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-- text/css
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-- text/html
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-- text/plain
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do
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.application_javascript)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.application_json)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.application_xml)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.text_css)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.text_html)
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compression_enabled_media_types.force ({HTTP_MIME_TYPES}.text_plain)
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end
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remove_all_compression_enabled_media_types
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-- Remove all items.
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do
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compression_enabled_media_types.wipe_out
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end
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||||
|
||||
enable_compression_for_media_type (a_media_type: STRING)
|
||||
do
|
||||
compression_enabled_media_types.force (a_media_type)
|
||||
ensure
|
||||
has_media_type: compression_enabled_media_types.has (a_media_type)
|
||||
end
|
||||
|
||||
feature -- Support Compress
|
||||
|
||||
compression_encoding_variants (req: WSF_REQUEST; ct: STRING): detachable HTTP_ACCEPT_ENCODING_VARIANTS
|
||||
-- If the client support compression and the server support one of the algorithms
|
||||
-- compress it and update the response header.
|
||||
local
|
||||
l_compression_supported: LIST [STRING]
|
||||
l_compression: STRING
|
||||
do
|
||||
if
|
||||
attached req.http_accept_encoding as l_http_encoding and then
|
||||
not compression_supported_formats.is_empty and then
|
||||
compression_enabled_media_types.has (ct)
|
||||
then
|
||||
Result := conneg.encoding_preference (compression_supported_formats, l_http_encoding)
|
||||
if not Result.is_acceptable then
|
||||
Result := Void
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
generated_compressed_output (req: WSF_REQUEST; f:FILE; h: HTTP_HEADER; ct: STRING): detachable STRING
|
||||
-- If the client support compression and the server support one of the algorithms
|
||||
-- compress it and update the response header.
|
||||
local
|
||||
l_file: RAW_FILE
|
||||
l_compression_variants: HTTP_ACCEPT_ENCODING_VARIANTS
|
||||
l_compression_supported: LIST [STRING]
|
||||
l_compression: STRING
|
||||
do
|
||||
if
|
||||
not compression_supported_formats.is_empty and then
|
||||
compression_enabled_media_types.has (ct) and then
|
||||
attached req.http_accept_encoding as l_http_encoding
|
||||
then
|
||||
l_compression_variants := conneg.encoding_preference (compression_supported_formats, l_http_encoding)
|
||||
if
|
||||
l_compression_variants.is_acceptable and then
|
||||
attached l_compression_variants.encoding as l_encoding and then
|
||||
attached l_compression_variants.vary_header_value as l_vary_header
|
||||
then
|
||||
create l_file.make_with_path (create {PATH}.make_from_string (f.path.name))
|
||||
if l_file.exists then
|
||||
l_file.open_read
|
||||
h.put_last_modified (create {DATE_TIME}.make_from_epoch (l_file.date))
|
||||
-- Check the CLIENT request
|
||||
-- If the client support compression and one of the algorithms is `deflate_compression_format' we can do compression.
|
||||
-- and we need to add the corresponding 'Content-Ecoding' witht the supported algorithm.
|
||||
l_file.read_stream (l_file.count)
|
||||
Result := compressed_string (l_file.last_string, l_encoding)
|
||||
h.add_header ("Content-Encoding:" + l_encoding)
|
||||
h.add_header ("Vary:" + l_vary_header)
|
||||
l_file.close
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
feature -- Compress Data
|
||||
|
||||
compressed_string (a_string: STRING; a_encoding: STRING): STRING
|
||||
-- Compress `a_string' using `deflate_compression_format'
|
||||
local
|
||||
dc: ZLIB_STRING_COMPRESS
|
||||
do
|
||||
create Result.make_empty
|
||||
create dc.string_stream_with_size (Result, 32_768) -- chunk size 32k
|
||||
dc.put_string_with_options (a_string, {ZLIB_CONSTANTS}.Z_default_compression, zlb_strategy (a_encoding), 8, {ZLIB_CONSTANTS}.z_default_strategy.to_integer_32)
|
||||
-- We use the default compression level
|
||||
-- We use the default value for windows bits, the range is 8..15. Higher values use more memory, but produce smaller output.
|
||||
-- Memory: Higher values use more memory, but are faster and produce smaller output. The default is 8, we use 9.
|
||||
end
|
||||
|
||||
|
||||
zlb_strategy (a_encoding: STRING): INTEGER
|
||||
do
|
||||
if a_encoding.is_case_insensitive_equal_general (gzip_compression_format) then
|
||||
Result := {ZLIB_CONSTANTS}.z_default_window_bits + 16
|
||||
elseif a_encoding.is_case_insensitive_equal_general (deflate_compression_format) then
|
||||
Result := -{ZLIB_CONSTANTS}.z_default_window_bits
|
||||
else
|
||||
check compress: a_encoding.is_case_insensitive_equal_general (compress_compression_format) end
|
||||
Result := {ZLIB_CONSTANTS}.z_default_window_bits
|
||||
end
|
||||
end
|
||||
|
||||
note
|
||||
copyright: "2011-2016, Jocelyn Fiat, Javier Velilla, Olivier Ligot, Colin Adams, Eiffel Software and others"
|
||||
|
||||
@@ -43,8 +43,6 @@ feature {NONE} -- Initialize
|
||||
|
||||
initialize_filtered_router
|
||||
-- Initialize `router` and `filter`.
|
||||
local
|
||||
f: like filter
|
||||
do
|
||||
initialize_router
|
||||
initialize_filter
|
||||
@@ -63,7 +61,7 @@ feature -- Execute Filter
|
||||
end
|
||||
|
||||
note
|
||||
copyright: "2011-2015, Jocelyn Fiat, Javier Velilla, Olivier Ligot, Colin Adams, Eiffel Software and others"
|
||||
copyright: "2011-2016, Jocelyn Fiat, Javier Velilla, Olivier Ligot, Colin Adams, Eiffel Software and others"
|
||||
license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
|
||||
source: "[
|
||||
Eiffel Software
|
||||
|
||||
@@ -104,6 +104,15 @@ feature {NONE} -- Initialization
|
||||
|
||||
feature -- Element change
|
||||
|
||||
set_content_type (a_content_type: detachable like content_type)
|
||||
do
|
||||
if a_content_type = Void then
|
||||
get_content_type
|
||||
else
|
||||
content_type := a_content_type
|
||||
end
|
||||
end
|
||||
|
||||
set_max_age (sec: INTEGER)
|
||||
do
|
||||
header.put_cache_control ("max-age=" + sec.out)
|
||||
|
||||
Reference in New Issue
Block a user