diff options
| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-03-28 08:06:55 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-03-28 08:06:55 +0000 |
| commit | 706c028909df2f9526c1cde1c2baa6bc0b4d318a () | |
| tree | 0d949ef750c32079b9220f0c8264e945535b75ad /lib/webrick/httpproxy.rb | |
| parent | 32e277acbf35de454befc1573aff1063a55403cf (diff) | |
webrick/httpproxy: stream request and response bodies
Reading entire request or response bodies into memory can lead to trivial denial-of-service attacks. Introduce Fibers in both cases to allow . WEBrick::HTTPRequest gains a new body_reader method to prepare itself as a source for IO.copy_stream. This allows the WEBrick::HTTPRequest object to be used as the Net::HTTPGenericRequest#body_stream= arg for Net::HTTP. For HTTP proxy response bodies, we also use a Fiber to to make the HTTP request and read the response body. * lib/webrick/httprequest.rb (body_reader): new method (readpartial): ditto * lib/webrick/httpproxy.rb (perform_proxy_request): use Fiber to stream response body (do_GET, do_HEAD): adjust call (do_POST): adjust call and supply body_reader * test/webrick/test_httprequest.rb (test_chunked): test for IO.copy_stream compatibility * test/webrick/test_httpproxy.rb (test_big_bodies): new test git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62966 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | lib/webrick/httpproxy.rb | 74 |
1 files changed, 43 insertions, 31 deletions
@@ -211,21 +211,15 @@ module WEBrick end def do_GET(req, res) - perform_proxy_request(req, res) do |http, path, header| - http.get(path, header) - end end def do_HEAD(req, res) - perform_proxy_request(req, res) do |http, path, header| - http.head(path, header) - end end def do_POST(req, res) - perform_proxy_request(req, res) do |http, path, header| - http.post(path, req.body || "", header) - end end def do_OPTIONS(req, res) @@ -301,38 +295,56 @@ module WEBrick return FakeProxyURI end - def perform_proxy_request(req, res) uri = req.request_uri path = uri.path.dup path << "?" << uri.query if uri.query header = setup_proxy_header(req, res) upstream = setup_upstream_proxy_authentication(req, res, header) - response = nil http = Net::HTTP.new(uri.host, uri.port, upstream.host, upstream.port) - http.start do - if @config[:ProxyTimeout] - ################################## these issues are - http.open_timeout = 30 # secs # necessary (maybe because - http.read_timeout = 60 # secs # Ruby's bug, but why?) - ################################## end - response = yield(http, path, header) end - - # Persistent connection requirements are mysterious for me. - # So I will close the connection in every response. - res['proxy-connection'] = "close" - res['connection'] = "close" - - # Convert Net::HTTP::HTTPResponse to WEBrick::HTTPResponse - res.status = response.code.to_i - choose_header(response, res) - set_cookie(response, res) - set_via(res) - res.body = response.body end - # :stopdoc: end end |