nagachika 16b426e966 merge revision(s) 62960,62961,62962,62963,62964,62965: ... webrick/httprequest: limit request headers size We use the same 112 KB limit started (AFAIK) by Mongrel, Thin, and Puma to prevent malicious users from using up all the memory with a single request. This also limits the damage done by excessive ranges in multipart Range: requests. Due to the way we rely on IO#gets and the desire to keep the code simple, the actual maximum header may be 4093 bytes larger than 112 KB, but we're splitting hairs at that point. * lib/webrick/httprequest.rb: define MAX_HEADER_LENGTH (read_header): raise when headers exceed max length webrick/httpservlet/cgihandler: reduce memory use WEBrick::HTTPRequest#body can be passed a block to process the body in chunks. Use this feature to avoid building a giant string in memory. * lib/webrick/httpservlet/cgihandler.rb (do_GET): avoid reading entire request body into memory (do_POST is aliased to do_GET, so it handles bodies) webrick/httprequest: raise correct exception "BadRequest" alone does not resolve correctly, it is in the HTTPStatus namespace. * lib/webrick/httprequest.rb (read_chunked): use correct exception * test/webrick/test_httpserver.rb (test_eof_in_chunk): new test webrick/httprequest: use InputBufferSize for chunked requests While WEBrick::HTTPRequest#body provides a Proc interface for streaming large request bodies, clients must not force the server to use an excessively large chunk size. * lib/webrick/httprequest.rb (read_chunk_size): limit each read and block.call to :InputBufferSize in config. * test/webrick/test_httpserver.rb (test_big_chunks): new test webrick: add test for Digest auth-int No changes to the actual code, this is a new test for a feature for which no tests existed. I don't understand the Digest authentication code well at all, but this is necessary for the subsequent change. * test/webrick/test_httpauth.rb (test_digest_auth_int): new test (credentials_for_request): support bodies with POST webrick/httpauth/digestauth: stream req.body WARNING! WARNING! WARNING! LIKELY BROKEN CHANGE Pass a proc to WEBrick::HTTPRequest#body to avoid reading a potentially large request body into memory during authentication. WARNING! this will break apps completely which want to do something with the body besides calculating the MD5 digest of it. Also, keep in mind that probably nobody uses "auth-int". Servers such as Apache, lighttpd, nginx don't seem to support it; nor does curl when using POST/PUT bodies; and we didn't have tests for it until now... * lib/webrick/httpauth/digestauth.rb (_authenticate): stream req.body git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@63004 b2dd03c8-39d4-4d8f-98ff-823fe69b080e		2018-03-28 12:23:29 +00:00
..
authenticator.rb	Add frozen_string_literal: false for all files	2015-12-16 05:07:31 +00:00
basicauth.rb	Add frozen_string_literal: false for all files	2015-12-16 05:07:31 +00:00
digestauth.rb	merge revision(s) 62960,62961,62962,62963,62964,62965:	2018-03-28 12:23:29 +00:00
htdigest.rb	lib/*: remove closed checks	2016-11-21 23:05:41 +00:00
htgroup.rb	Add frozen_string_literal: false for all files	2015-12-16 05:07:31 +00:00
htpasswd.rb	lib/*: remove closed checks	2016-11-21 23:05:41 +00:00
userdb.rb	Add frozen_string_literal: false for all files	2015-12-16 05:07:31 +00:00