gitlab-org--gitlab-foss/config/initializers/puma_client_tempfile_patch.rb

103 lines
3 KiB
Ruby

# frozen_string_literal: true
if Gitlab::Runtime.puma?
raise "Remove this monkey patch: #{__FILE__}" unless Puma::Const::VERSION == '5.1.1'
if ENV['GITLAB_TEMPFILE_IMMEDIATE_UNLINK'] == '1'
# This is copied from https://github.com/puma/puma/blob/v5.1.1/lib/puma/client.rb,
# with two additions: both times we create a temporary file, we immediately
# call `#unlink`. This means that if the process gets terminated without being
# able to clean up itself, the temporary file will not linger on the file
# system. We will try to get this patch accepted upstream if it works for us
# (we just need to check if the temporary file responds to `#unlink` as that
# won't work on Windows, for instance).
module Puma
class Client
private
def setup_body
@body_read_start = Process.clock_gettime(Process::CLOCK_MONOTONIC, :millisecond)
if @env[HTTP_EXPECT] == CONTINUE
# TODO allow a hook here to check the headers before
# going forward
@io << HTTP_11_100
@io.flush
end
@read_header = false
body = @parser.body
te = @env[TRANSFER_ENCODING2]
if te
if te.include?(",")
te.split(",").each do |part|
if CHUNKED.casecmp(part.strip) == 0 # rubocop:disable Metrics/BlockNesting
return setup_chunked_body(body)
end
end
elsif CHUNKED.casecmp(te) == 0
return setup_chunked_body(body)
end
end
@chunked_body = false
cl = @env[CONTENT_LENGTH]
unless cl
@buffer = body.empty? ? nil : body
@body = EmptyBody
set_ready
return true
end
remain = cl.to_i - body.bytesize
if remain <= 0
@body = StringIO.new(body)
@buffer = nil
set_ready
return true
end
if remain > MAX_BODY
@body = Tempfile.new(Const::PUMA_TMP_BASE)
@body.binmode
@body.unlink # This is the changed part
@tempfile = @body
else
# The body[0,0] trick is to get an empty string in the same
# encoding as body.
@body = StringIO.new body[0,0] # rubocop:disable Layout/SpaceAfterComma
end
@body.write body
@body_remain = remain
return false # rubocop:disable Style/RedundantReturn
end
def setup_chunked_body(body)
@chunked_body = true
@partial_part_left = 0
@prev_chunk = ""
@body = Tempfile.new(Const::PUMA_TMP_BASE)
@body.binmode
@body.unlink # This is the changed part
@tempfile = @body
@chunked_content_length = 0
if decode_chunk(body)
@env[CONTENT_LENGTH] = @chunked_content_length
return true # rubocop:disable Style/RedundantReturn
end
end
end
end
end
end