forked from midou/invidious
Patch StaticFileHandler to serve files from memory
This commit is contained in:
Omar Roth
parent
47ef74a1bb
commit
6cd884555c
@ -3466,9 +3466,9 @@ get "/api/v1/trending" do |env|
|
||||
json.array do
|
||||
trending.each do |video|
|
||||
video.to_json(locale, config, Kemal.config, json)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
videos
|
||||
end
|
||||
@ -3740,11 +3740,11 @@ end
|
||||
json.array do
|
||||
videos.each do |video|
|
||||
video.to_json(locale, config, Kemal.config, json)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
{"/api/v1/channels/:ucid/latest", "/api/v1/channels/latest/:ucid"}.each do |route|
|
||||
get route do |env|
|
||||
@ -3766,11 +3766,11 @@ end
|
||||
json.array do
|
||||
videos.each do |video|
|
||||
video.to_json(locale, config, Kemal.config, json)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
{"/api/v1/channels/:ucid/playlists", "/api/v1/channels/playlists/:ucid"}.each do |route|
|
||||
get route do |env|
|
||||
@ -3951,11 +3951,11 @@ get "/api/v1/playlists/:plid" do |env|
|
||||
json.array do
|
||||
videos.each do |video|
|
||||
video.to_json(locale, config, Kemal.config, json)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
if format == "html"
|
||||
response = JSON.parse(response)
|
||||
|
||||
195
src/invidious/helpers/static_file_handler.cr
Normal file
195
src/invidious/helpers/static_file_handler.cr
Normal file
@ -0,0 +1,195 @@
|
||||
# Since systems have a limit on number of open files (`ulimit -a`),
|
||||
# we serve them from memory to avoid 'Too many open files' without needing
|
||||
# to modify ulimit.
|
||||
#
|
||||
# Very heavily re-used:
|
||||
# https://github.com/kemalcr/kemal/blob/master/src/kemal/helpers/helpers.cr
|
||||
# https://github.com/kemalcr/kemal/blob/master/src/kemal/static_file_handler.cr
|
||||
#
|
||||
# Changes:
|
||||
# - A `send_file` overload is added which supports sending a Slice, file_path, filestat
|
||||
# - `StaticFileHandler` is patched to cache to and serve from @cached_files
|
||||
|
||||
private def multipart(file, env : HTTP::Server::Context)
|
||||
# See http://httpwg.org/specs/rfc7233.html
|
||||
fileb = file.size
|
||||
startb = endb = 0
|
||||
|
||||
if match = env.request.headers["Range"].match /bytes=(\d{1,})-(\d{0,})/
|
||||
startb = match[1].to_i { 0 } if match.size >= 2
|
||||
endb = match[2].to_i { 0 } if match.size >= 3
|
||||
end
|
||||
|
||||
endb = fileb - 1 if endb == 0
|
||||
|
||||
if startb < endb < fileb
|
||||
content_length = 1 + endb - startb
|
||||
env.response.status_code = 206
|
||||
env.response.content_length = content_length
|
||||
env.response.headers["Accept-Ranges"] = "bytes"
|
||||
env.response.headers["Content-Range"] = "bytes #{startb}-#{endb}/#{fileb}" # MUST
|
||||
|
||||
if startb > 1024
|
||||
skipped = 0
|
||||
# file.skip only accepts values less or equal to 1024 (buffer size, undocumented)
|
||||
until (increase_skipped = skipped + 1024) > startb
|
||||
file.skip(1024)
|
||||
skipped = increase_skipped
|
||||
end
|
||||
if (skipped_minus_startb = skipped - startb) > 0
|
||||
file.skip skipped_minus_startb
|
||||
end
|
||||
else
|
||||
file.skip(startb)
|
||||
end
|
||||
|
||||
IO.copy(file, env.response, content_length)
|
||||
else
|
||||
env.response.content_length = fileb
|
||||
env.response.status_code = 200 # Range not satisfable, see 4.4 Note
|
||||
IO.copy(file, env.response)
|
||||
end
|
||||
end
|
||||
|
||||
# Set the Content-Disposition to "attachment" with the specified filename,
|
||||
# instructing the user agents to prompt to save.
|
||||
private def attachment(env : HTTP::Server::Context, filename : String? = nil, disposition : String? = nil)
|
||||
disposition = "attachment" if disposition.nil? && filename
|
||||
if disposition && filename
|
||||
env.response.headers["Content-Disposition"] = "#{disposition}; filename=\"#{File.basename(filename)}\""
|
||||
end
|
||||
end
|
||||
|
||||
def send_file(env : HTTP::Server::Context, file_path : String, data : Slice(UInt8), filestat : File::Info, filename : String? = nil, disposition : String? = nil)
|
||||
config = Kemal.config.serve_static
|
||||
mime_type = MIME.from_filename(file_path, "application/octet-stream")
|
||||
env.response.content_type = mime_type
|
||||
env.response.headers["Accept-Ranges"] = "bytes"
|
||||
env.response.headers["X-Content-Type-Options"] = "nosniff"
|
||||
minsize = 860 # http://webmasters.stackexchange.com/questions/31750/what-is-recommended-minimum-object-size-for-gzip-performance-benefits ??
|
||||
request_headers = env.request.headers
|
||||
filesize = data.bytesize
|
||||
attachment(env, filename, disposition)
|
||||
|
||||
Kemal.config.static_headers.try(&.call(env.response, file_path, filestat))
|
||||
|
||||
file = IO::Memory.new(data)
|
||||
if env.request.method == "GET" && env.request.headers.has_key?("Range")
|
||||
return multipart(file, env)
|
||||
end
|
||||
|
||||
condition = config.is_a?(Hash) && config["gzip"]? == true && filesize > minsize && Kemal::Utils.zip_types(file_path)
|
||||
if condition && request_headers.includes_word?("Accept-Encoding", "gzip")
|
||||
env.response.headers["Content-Encoding"] = "gzip"
|
||||
Gzip::Writer.open(env.response) do |deflate|
|
||||
IO.copy(file, deflate)
|
||||
end
|
||||
elsif condition && request_headers.includes_word?("Accept-Encoding", "deflate")
|
||||
env.response.headers["Content-Encoding"] = "deflate"
|
||||
Flate::Writer.open(env.response) do |deflate|
|
||||
IO.copy(file, deflate)
|
||||
end
|
||||
else
|
||||
env.response.content_length = filesize
|
||||
IO.copy(file, env.response)
|
||||
end
|
||||
|
||||
return
|
||||
end
|
||||
|
||||
module Kemal
|
||||
class StaticFileHandler < HTTP::StaticFileHandler
|
||||
CACHE_LIMIT = 5_000_000 # 5MB
|
||||
@cached_files = {} of String => {data: Bytes, filestat: File::Info}
|
||||
|
||||
def call(context : HTTP::Server::Context)
|
||||
return call_next(context) if context.request.path.not_nil! == "/"
|
||||
|
||||
case context.request.method
|
||||
when "GET", "HEAD"
|
||||
else
|
||||
if @fallthrough
|
||||
call_next(context)
|
||||
else
|
||||
context.response.status_code = 405
|
||||
context.response.headers.add("Allow", "GET, HEAD")
|
||||
end
|
||||
return
|
||||
end
|
||||
|
||||
config = Kemal.config.serve_static
|
||||
original_path = context.request.path.not_nil!
|
||||
request_path = URI.unescape(original_path)
|
||||
|
||||
# File path cannot contains '\0' (NUL) because all filesystem I know
|
||||
# don't accept '\0' character as file name.
|
||||
if request_path.includes? '\0'
|
||||
context.response.status_code = 400
|
||||
return
|
||||
end
|
||||
|
||||
expanded_path = File.expand_path(request_path, "/")
|
||||
is_dir_path = if original_path.ends_with?('/') && !expanded_path.ends_with? '/'
|
||||
expanded_path = expanded_path + '/'
|
||||
true
|
||||
else
|
||||
expanded_path.ends_with? '/'
|
||||
end
|
||||
|
||||
file_path = File.join(@public_dir, expanded_path)
|
||||
|
||||
if file = @cached_files[file_path]?
|
||||
last_modified = file[:filestat].modification_time
|
||||
add_cache_headers(context.response.headers, last_modified)
|
||||
|
||||
if cache_request?(context, last_modified)
|
||||
context.response.status_code = 304
|
||||
return
|
||||
end
|
||||
|
||||
puts "Sending cached file, #{@cached_files.sum { |element| element[1][:data].bytesize }}"
|
||||
send_file(context, file_path, file[:data], file[:filestat])
|
||||
else
|
||||
is_dir = Dir.exists? file_path
|
||||
|
||||
if request_path != expanded_path
|
||||
redirect_to context, expanded_path
|
||||
elsif is_dir && !is_dir_path
|
||||
redirect_to context, expanded_path + '/'
|
||||
end
|
||||
|
||||
if Dir.exists?(file_path)
|
||||
if config.is_a?(Hash) && config["dir_listing"] == true
|
||||
context.response.content_type = "text/html"
|
||||
directory_listing(context.response, request_path, file_path)
|
||||
else
|
||||
call_next(context)
|
||||
end
|
||||
elsif File.exists?(file_path)
|
||||
last_modified = modification_time(file_path)
|
||||
add_cache_headers(context.response.headers, last_modified)
|
||||
|
||||
if cache_request?(context, last_modified)
|
||||
context.response.status_code = 304
|
||||
return
|
||||
end
|
||||
|
||||
if @cached_files.sum { |element| element[1][:data].bytesize } + (size = File.size(file_path)) < CACHE_LIMIT
|
||||
data = Bytes.new(size)
|
||||
File.open(file_path) do |file|
|
||||
file.read(data)
|
||||
end
|
||||
filestat = File.info(file_path)
|
||||
|
||||
@cached_files[file_path] = {data: data, filestat: filestat}
|
||||
send_file(context, file_path, data, filestat)
|
||||
else
|
||||
send_file(context, file_path)
|
||||
end
|
||||
else
|
||||
call_next(context)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Reference in New Issue
Block a user